(共25张PPT)
Starting out & Understanding ideas—Language points
Unit 5
Revealing nature
基础知识巩固
核心考点突破
高考热点微练
知识巩固
基础
Ⅰ.单词拼写
1.Scientists will use Webb space telescope to study planets and other bodies in the solar system to determine their origin and .
2.Water the and they will grow out of the soil.
3.The wind farm may be able to (产生) enough electricity for 2,000 homes.
4.Before the competition, all in my mind was determination: not to be a
(丢脸) to my country and myself.
evolution
seeds
generate
disgrace
5.People go to clean graves and burn incense(香) in memory of their
.
6.His grandfather works as a (地质学家)，who always deals with rocks and soils in the open air.
ancestors
geologist
Ⅱ.词形变化填空
1.I didn’t notice any behaviour from him，so I didn’t ____ __
him of committing the crime.(suspect)
2.On the top of the hill，I spot a figure in the but can’t make out who it is.(distant)
3.He brought on the whole team by taking illegal drugs，which was thought ，so they were removed from the competition in .(disgrace)
4.Most languages are constantly and changing.This kind of
keeps them alive.(evolve)
suspicious
suspect
distant
distance
disgrace
disgraceful
disgrace
evolving
evolution
Ⅲ.完成句子
1. ，I was sleeping.
他敲门时我正在睡觉。
2.There were I didn’t know which one to choose.
书店里有那么多书，我不知道该选哪一本。
When he knocked at the door
so many books in the bookstore that
3.Anyone who is keen on the film is welcome to the school’s lecture hall
.(过去分词短语作后置定语)
欢迎任何对这部电影感兴趣的人到位于第三教学楼第一层的学校演讲大厅。
located on the first floor of the third teaching building
考点突破
核心
提示：题干中加底纹的词汇为本单元的词汇复现，帮助学生及时巩固，循环复习。
adj.遥远的；久远的；疏远的；心不在焉的
(distance n.距离；远方distantly adv.遥远地；疏远地)
distant
1
be distant from距……很远；与……不同
within walking distance走着就能到
at a distance of 相隔，相距
in the distance在远处
from a distance从远处
keep one’s distance from sb＝keep sb at a distance与某人保持距离；
疏远某人
单句语法填空/完成句子
(1)We can see the waterfall the distance，whose sound can be heard
a distance of two miles.It looks quite beautiful a distance，I think.
(2)The girl disgraced herself by behaving that way at the party and everyone kept her a distance.
(3)(应用文写作之建议信)You can also visit the city museum，which is
of the hotel where you stay.
你也可以参观市博物馆，从你住的酒店走着就能到。
in
at
from
at
within walking distance
n.丢脸，耻辱 vt.使丢脸，使蒙羞
(grace n.优雅，高雅 disgraceful adj.不光彩的，可耻的)
disgrace
2
be a disgrace是耻辱，是丢脸的事
in disgrace丢脸；失宠
bring disgrace on使……蒙羞
there is no disgrace in doing sth做某事不丢脸
disgrace oneself 使某人自己丢脸/蒙羞
单句语法填空/完成句子
(1)Andrew behaved so badly on the school trip that he was sent home ___
disgrace.His behaviour brought disgrace his family.
(2)It is disgrace that she is so rude to the awe-inspiring professor.
(3)It’s (disgrace) that some players cheated in the competition to defeat their opponents.
(4) admitting that you cannot do something—it’s always best to ask for help.
承认自己做不了某件事并没有什么丢脸的，你最好寻求帮助。
in
on
disgraceful
There is no disgrace in
a
v.猜想，怀疑，觉得 n.犯罪嫌疑人
(suspicion n.怀疑；疑心 suspicious adj.怀疑的；可疑的)
3
suspect
suspect sb of (doing) sth 怀疑某人(做)某事
suspect that...认为……
be suspicious of/about...怀疑……
单句语法填空/一句多译
(1)The police that two of the caught yesterday were connected with another case.They were more .(suspect)
(2)在那种情况下，我非常怀疑他在对我撒谎。
①In that situation I strongly .(简单句)
②In that situation I strongly .(复合句)
suspected
suspects
suspicious
suspected him of lying to me
suspected that he was lying to me
4
有史以来；一直，始终
of all time
at times有时；不时
at a time一次，每次
at one time曾经，一度
all the time始终，一直
in no time立刻，马上
at no time在任何时候都不；决不(位于句首时句子倒装)
选词填空
(1)This used to be a very pretty valley ，but now it has changed a lot.
(2)Opportunities are present ，but often they go by unnoticed.
(3)Don’t worry.You will be all right .
(4) did the geologist believe the theory coming up at that meeting.
at one time
all the time
in no time
At no time
5
挤满；充满(crowd n.人群 v.挤满；塞满；涌入 crowded adj.拥挤的；挤满的；充满的)
be crowded with
crowd in (on sb)(想法、问题等)涌上心头；涌入脑海
crowd into one’s mind涌入某人的脑海
crowd in/into 大批地涌入
crowd around聚集在……周围；聚拢
a crowd of/crowds of一群/成群……
单句语法填空/完成句子
(1)This night，streets are (crowd) with (crowd) of people.Visitors crowd shops to buy souvenirs.
(2)The instant I saw these old photos，vivid memories of my grandparents .
一看到这些老照片，对祖父母的清晰记忆便涌入我的脑海。
crowded
crowds
in/into
crowded into my mind
6
not ...until ...直到……才……
[教材原句] It was not published until 1859 and immediately caused a storm.这本书直到1859年才出版，出版后立即引起轰动。(P68)
此句中含有not...until...结构，意为 “直到……才……”。
当not until 位于句首时，句子要倒装。其结构为Not until＋从句/
表时间的词＋助动词＋(主句)主语＋谓语＋其他。
not until的强调结构为It is/was not until＋从句/表时间的词＋that
＋其他。
句式升级
I didn’t have a good understanding of traditional Chinese paintings until I appreciated the exhibition.
→_____________________________________________________________
(强调句)
→_____________________________________________________________
(倒装句)
It was not until I appreciated the exhibition that I had a good
understanding of traditional Chinese paintings.
Not until I appreciated the exhibition did I have a good understanding
of traditional Chinese paintings.
热点微练
高考
Ⅰ.一词多义
快速阅读下列句子并选出句中加颜色词汇对应的意思
decline
A.v.谢绝 B.v.减少 C.n.下降
1.In parts of southern California the decline was nearly 75 percent.
2.At night，I offered to tell them a folk tale，but they declined with
thanks.
3.The number of tourists to the place of interest declined by 10% last year.
___
___
___
B
C
A
Ⅱ.熟词生义
快速阅读下列句子并猜测句中加颜色词汇的意思
1.Turner’s opponent in the quarter-final is the number one seed.________
2.The company has evolved over the years into a multi-million dollar organization. _____
种子选手
发展(共30张PPT)
Developing ideas & Other parts—Language points
Unit 5
Revealing nature
基础知识巩固
核心考点突破
高考热点微练
知识巩固
基础
Ⅰ.单词拼写
1.What shocked us was that Perugia got the blame for the (网
络犯罪) and went to prison.
2.People (遍及全世界) celebrate New Year in different ways.
3.We need to get to the (根源) of the problem before we can solve it.
4.Human brains contain more than 100 million cells per cubic _________
(厘米).
5.In (传奇故事) young princesses usually live in large and beautiful castles.
cybercrime
worldwide
root
centimeter
legends
6.Dad terrified us with stories of a big，bad who ate little children.
7.They drew the material of their plays chiefly from and legends.
giant
myths
Ⅱ.词形变化填空
1.They that a private had been tailing them for several weeks.(detect)
2.The who are experts in of the Island believe that climate change could have an impact on animal evolution.(geologist)
3.Police suspect there may be a between the two accidents and they may be to another crime.(link)
detected
detective
geologists
geography
link
linked
Ⅲ.完成句子
1.(读后续写之环境描写)公园里阳光明媚，鸟儿歌唱，充满了春天的清新与美丽。
，the park was full of freshness and beauty of spring.
2.的确，手机给我们带来了很多好处和便利，但只有当它们被更恰当地使用时，它们才能更好地为我们服务。
cellphones bring us lots of benefits and convenience，but only when they’re used more appropriately can they serve us better.
With the sun shining and birds singing
It’s true that
3.我很荣幸来到这里，与我们来自英国的朋友们共享时刻。
It’s my great privilege to be here， with our fellow friends from the Great Britain.
sharing my moment
考点突破
核心
v.把……归咎于；责怪，指责 n.责任；责备；过失
blame
1
blame sb for...因……而指责某人；把……归咎于某人
blame sth on sb把某事归咎于某人
be to blame (for sth)(对某事)负有责任；应承担责任；该受责备(主
动形式表被动意义)
put/lay the blame for sth on sb/sth把某事归咎于某人/某物
单句语法填空/语段填空
(1)Lots of people find it hard to get up in the morning，and put the blame the alarm clock.
(2)(话题写作之人际交往)当和其他人相处时，我们不应该总是把错误归咎于其他人。毕竟，很多时候我们也负有责任。因此，我们应该多交流、换位思考，而不是指责其他人。
When getting along with others，we shouldn’t always ________________
.After all，many times we _________
.So instead of ，we should communicate more and put ourselves in others’place.
on
blame others for
mistakes/blame mistakes on others
are also to
blame
blaming others
v.减少；衰退；谢绝 n.减少；下降；衰退
decline
2
decline by...下降了……
decline to do sth拒绝做某事
in decline/on the decline在下降
a sharp decline in...在……方面急剧下降
单句语法填空/完成句子
(1)There was sharp decline in the number of peacocks in this region，causing local people in a panic.
(2)There is a widely held belief that educational standards are the decline.
(3)I offered to reward him with money，but .
我提出用金钱奖励他，但被拒绝了。
a
on
was declined
源于……的，原产于……
3
be native to
one’s native country/land/language/tongue某人的祖国/故乡/母语
native speaker 母语使用者
be a native of...是……人；生长于……的动/植物
单句语法填空/完成句子
(1)These fish on the pictures are native North America.
(2)What is known to us is that the kangaroo is a native Australia.
(3)There’s nothing like learning a language directly from .
没有什么比直接跟母语使用者学习一门语言更好。
to
of
a native speaker
v.把……联系起来；连接 n.联系；连接线
(linked adj.有关的)
4
link
link...to/with...把……和……连接/联系起来
a link between...and...……和……之间的联系
be linked to/with与……有关
单句语法填空/句型转换
(1)We are delighted to know the news that a subway line will link the airport the city center.
(2)Police suspect there may be a link the two murders on this street last month.
(3)The girl likes yellow that is linked with confidence and self-belief.
→The girl likes yellow .(分词短语作定语)
to/with
between
linked with confidence and self-belief
把……赶走
5
drive...away
drive sb crazy/mad把某人逼得发疯/发狂
drive sb to do sth迫使某人做某事
drive off驱车离去；驶去
drive into打入；敲进
单句语法填空/完成句子
(1)(读后续写之情绪描写)I am at a loss and don’t know what I can do to drive these feelings of sadness .
(2)He was frank and admitted that it was poverty that drove him _______
(steal) in the street.
(3)(读后续写之情绪描写)It was obvious that what he did ______________
.
很明显他所做的事让他的母亲很生气，甚至疯狂。
away
to
steal
drove his
mother angry and even mad
6
be＋adj.＋to do
[教材原句] Gregor Mendel chose to study pea plants because their characteristics were easy to control.
孟德尔之所以选择研究豌豆，是因为它们的特性易于控制。(P70)
本句中的were easy to control是“be＋adj.＋to do”结构，不定式的
主动形式表示被动意义。可以转换为It is ＋adj.＋to do...句式。
常用于此结构的形容词有difficult，hard，easy，comfortable，
pleasant，interesting，exciting等。
单句语法填空/句型转换
(1)The water is not fit (drink)，so hold out until we get to a shop.
(2)When he turned on the computer，he found it was hard to answer the emails.
→When he turned on the computer，he found ______________________
.
to drink
the emails were hard to
answer
7
it作形式主语
[教材原句] It has been known for some time that plants use chemicals to communicate with each other.
人们早就知道植物可以利用化学物质进行交流。(P74)
it 作形式主语，真正的主语是后面that引导的主语从句，常见的有：
It＋be＋形容词(obvious，possible，strange，natural，important...)
＋that从句；
It＋be＋过去分词(said，thought，known，believed，supposed，
reported...)＋that 从句；
It ＋不及物动词(seems，occurs，happens...)＋that从句；
It＋be＋名词词组(a pity，an honour，no wonder...)＋that从句。
单句语法填空/完成句子
(1)(应用文写作之建议信)It is (help) to join a volunteer group，which can make you happy and provide a chance to make more friends.
(2)(应用文写作之道歉信)It is a pity I couldn’t accompany you to the bookstore as planned.
(3)(读后续写之心理描写) he could help collect money through WeChat.
他突然想到，他可以通过微信帮助筹款。
helpful
that
It suddenly occurred to him that
用法点拨 在“It is ＋suggested/desired/proposed/recommended/ordered...
＋that从句”结构中，从句要用虚拟语气，即谓语动词用“(should＋)动词原形”。
8
现在分词短语作方式状语
[教材原句] Using the wood wide web，plants can share information and even food with each other.
通过植物万维网，植物可以互相分享信息甚至是食物。(P76)
现在分词短语作状语时，可表示时间、伴随、条件、原因、结果、方式等，通常相当于一个状语从句或并列句。
单句语法填空
(1)When I came home，I found my father sitting in the armchair，
(read) a magazine.
(2)Not (know) what kind of gifts she likes，I can’t choose one for her.
(3)(应用文之泰山旅行) (stand) on the top of Mount Tai，we are able to have a good view of the beautiful scenery of the whole city.
reading
knowing
Standing
热点微练
高考
Ⅰ.一词多义
快速阅读下列句子并选出句中加颜色词汇对应的意思
root
A.起因，根源 B.根；根茎 C.起源
1.Money，or love of money，is said to be the root of all evil.
2.In the garden，I pulled the plant up by the root.
3.Do you know that Flamenco has its root in Arabic music？
___
___
___
B
C
A
Ⅱ.熟词生义
快速阅读下列句子并猜测句中加颜色词汇的意思
1.He was without question one of the giants of Chinese literature.
_________
2.For example，doctors did not have devices allowing them to go inside the human body to detect health problems or to perform delicate surgeries. _____
卓越人物
探测(共48张PPT)
Starting out & Understanding ideas—Reading comprehension
Unit 5
Revealing nature
1．Use textual information to predict the content of this passage and read for the main idea of the passage.
2．Work out the structure of the text and understand the theme meaning.
3．Understand the clues of this passage.
4．Learn about the journey of discovery and how Charles Darwin's Theory of Evolution came out.
5．Experience the hardship of exploration and learn the scientific and creative spirit.
It is not the strongest of the species that survive, nor the most intelligent. It is the one that is most adaptable to change. This is the heart of the Theory of Evolution put forward by Charles Darwin.
Pre-reading
1．Look at the evolutionary tree and answer the questions.
(1)What species do you recognise in the picture
(2)What factors can cause the process of evolution
lower forms of life
evolve—evolution
higher forms of life
(1)What species do you recognise in the picture
Paramecium(草履虫)，earthworm，snail，crab，fish，tortoise，bird，horse，human，frog，algae(海藻)，moss(苔藓)，fern(蕨类)...
(2)What factors can cause the process of evolution
The ever-changing environment of nature; environmental changes; population immigration; genetic mutation; cultural preferences.
2．What kind of article is this passage
A．Narration(记叙文)．
B．Argumentation(议论文)．
C．Practical writing(应用文)．
D．Exposition(说明文)．
√
3．What does this text mainly tell us about
A．Why people respect Charles Darwin so much.
B．Why Charles Darwin was interested in living things.
C．How lucky Charles Darwin was in his early years.
D．How Charles Darwin's Theory of Evolution came out.
√
While-reading
Fast-reading
1．Skim the text and match each paragraph with its main idea.
Para.1 A．Develop ideas.
Para.2 B．Propose a theory.
Para.3 C．On his journey.
Para.4 D．Answer the call of the captain.
Para.5 E．Generate ideas.
Para.6 F．The greatness of his book.
Para.7 G．Look for more evidence.
2．What's this text about
This text is mainly about how Darwin's Theory of Evolution generated and developed on his journey on the Beagle.
3．Talk about your understanding of the title.
A journey means a (1)____ from one place to another，especially over a long (2)________ and literarily a journey refers to the (3)_______(过程) by which something (4)_________(逐渐)changes and develops.The title may indicate that Darwin's (5)_____________ leading to his discovery of (6)_________ and (7)_____________________ took quite a long time and great efforts，determination and courage to achieve.
trip
distance
process
gradually
research work
evolution
the origin of species
4．Choose the best main idea.
A．Darwin's interest in various living things made him a great naturalist.
B．Darwin's journey on the Beagle inspired his Theory of Evolution.
C．Darwin went on a journey to confirm his theory that humans had evolved over time.
√
1．The captain of the ship，the Beagle，______ someone who would “_________ the opportunity of visiting distant countries ________________”．The person who ________ the call was not the captain's ____________.
Paraphrase the sentences above.
The captain of the ship，the Beagle，needed someone who would benefit from the chance to visit countries that were far away and then unknown.One person applied for the job but he was not the person that the captain would have chosen first.
Careful-reading
Para.1
wanted
profit by
yet little known
answered
first choice
2．Which of the following statements about Charles Darwin is TRUE
A．Darwin wanted to benefit from visiting little-known countries.
B．Darwin quitted medical school due to his lack of money.
C．Darwin's father was satisfied with Darwin.
D．Darwin made a significant scientific discovery thanks to his adventures on the ship Beagle.
√
3．What do we know about Charles Darwin from the first paragraph
A．His father was disappointed with him.
B．He wasn't interested in his lessons at college.
C．He knew the captain of the Beagle very well.
D．He wanted to travel around the world by ship.
√
4．What is the function of paragraph 1
A．To praise Charles Darwin.
B．To arouse readers' interests and form a strong contrast.
C．To introduce Charles Darwin's achievements.
D．To inform readers of Charles Darwin's life.
√
5．Despite all this，his __________ on this ship would _______ one of the most important scientific discoveries ___________.
“Of all time” means “that has ever ________” in English and means “______________________________” in Chinese.
adventures
lead to
of all time
existed
自古以来；有史以来；从未有过
Labels on a young man
in the captain's eyes
_______________________________________________________________________________________
in his father's eyes
______________________________________________________
6．Complete the following information.
He was a disgrace to himself and all his family.
He was not the first choice and a young man who had left medical school without completing his degree.
1．The young man ___________，Charles Darwin，was a geologist and naturalist，_____________ rocks，plants and animals.
Paraphrase the sentence above.
The young man we are talking about here is Charles Darwin.He was a geologist and naturalist and he was very interested in rocks，plants and animals.
Para.2
in question
fascinated by
2．What role did the ship Beagle play in Darwin's journey of discovery
The journey on Beagle gave Darwin the chance to study various living things in their natural environments.
3．What contribute(s) to Darwin's asking himself a question
He had always been fascinated by plants and animals.
Studying the samples of the plants and animals in South America was the direct contributing factor.
1．Tell true(T) or false(F)．
On all species，people then had the same opinion as Darwin.( )
2．What does “It” refer to in the sentence “It was just an idea，but enough to inspire Darwin to look for more evidence.”？
“It” refers to “Maybe animals evolved as they adapted to their changing environments？”．
Para.3
F
1．When the Beagle _______ the Galápagos Islands in 1835，Darwin saw ____________ new species，but ______ the birds ____ interested him the most.
Paraphrase the sentence above.
When the Beagle got to the Galápagos Islands in 1835，Darwin was most interested in the birds among all different kinds of species he saw.
Para.4
reached
a variety of
it was
that
2．Tell true(T) or false(F)．
The beaks of the finches on each of the islands seemed to have evolved according to different habitats on islands.( )
F
1．Darwin _________ that the finches had ____________ a ________ ancestor，which had arrived on the islands a long time before.____ time，it had slowly evolved into many new species.
Paraphrase the sentences above.
Darwin guessed/supposed that the finches had developed from a shared ancestor arriving on the islands a long time before.With time going by，it had gradually developed into many new species.
Para.5
suspected
evolved from
common
Over
2．How did new species of plants and animals come to exist
They evolved from earlier ancestors.
3．The phrase “come to exist” means “_______________”．
come into being
1．It was not published until 1859 and immediately ______________.
Paraphrase the sentence above.
Not until 1859 did this book come out and at once it caused a sensation.
Para.6
caused a storm
2．Tell true(T) or false(F)．
Darwin's scientific studies could not provide strong evidence so that a growing number of people began to doubt his theory.( )
F
3．From the sixth paragraph，what did Charles Darwin dare to do
A．To travel alone in the mountains.
B．To fight against other people.
C．To express his own ideas.
D．To inspire others to tell the truth.
√
4．Why were many people “shocked” by Darwin's theory
At that time，many people believed that all species had appeared on Earth at the same time and had not changed since，but Darwin's theory proposed that living things，including humans，had evolved from lower forms of life，which，as a result，shocked many people.
1．Today，On the Origin of Species is ___________ one of the most important works ____________.It has _____________ about life on Earth _______.And it all __________ the journey on the Beagle.
Paraphrase the sentences above.
Nowadays，On the Origin of Species is considered to be among the most important works that have ever been written.It has changed views about life on Earth forever thanks to the journey on the Beagle.
Para.7
regarded as
ever written
changed ideas
forever
began with
2．What's the function of this paragraph
This paragraph aims to stress the great contribution Darwin made and the great significance of Darwin's journey on the Beagle.
1．What's the structure of the passage
The passage is organized in order of ____ and journey route.
______ the journey (para.1)
______ the journey(paras.2－6)
He left _______→spent some time in _____________→reached the Galápagos Islands
After the journey (para.7)
the whole passage
time
Before
During
England
South America
Para. 7: S__________ of On the Origin of Species and Darwin’s c___________ to the world.
Para. 2 & 3:
Darwin _________ideas.
Para. 5:
He __________ his ideas.
Para. 6:
Darwin published ________________________, where he explained theory of evolution.
A journey of Discovery: The P______ of Scientific Discoveries
Para. 1: Background information of Darwin’s _______.
Para. 4:
He ________ evidence.
rocess
journey
generated
collected
developed
On the Origin of Species
ignificance
ontribution
2．What's the significance of A Journey of Discovery
As a geologist and naturalist，Charles Darwin was a man who was good at observing nature and seeking scientific truth from nature.By (1)_____________________ of plants and animals，he discovered (2)________(证据) that all living creatures had evolved from (3)_____ forms to (4)______ forms.Although his Theory of Evolution was such a (5)_________(挑战)to people's religious beliefs，his On the Origin of Species was still published in 1859，which caused an immediate storm and sent shock waves around the world.The theory he proposed was so disruptive (开拓性的)，yet so (6)__________ that he was regarded as one of the greatest social scientists ever lived.
observing the samples
evidence
lower
higher
challenge
convincing
On his journey · Darwin studied (1)__________________________________________________________________________________________________________.
·He noticed that some species of animals were (2)__________________________.
Generate ideas Darwin asked the questions：
How did different species (3)_____________？
(4)_____________________________________________________________________
3．Organise information from the passage.
various living things in their natural environments and samples of the plants and animals he had collected
very similar to each other
come to exist
Maybe animals evolved as they adapted to their changing environments？
Look for more evidence On the Galápagos Islands：
He noticed (5)______________________________________________________________________.
It seemed the beaks (6)__________________________________________________________________________.
Develop ideas Darwin suspected that the finches (7)______________________________________________________________________________________ and it had (8)____________________________________.
Propose a theory The Theory of Evolution: living things，including humans，(9)____________________________________.
that there was a difference between the finches on each of the islands
had evolved according to what food was available on that particular island
had evolved from a common ancestor，which had arrived on the islands a long time before
slowly evolved into many new species
had evolved from lower forms of life
Post-reading
Discussion
1．What kind of person was Darwin according to the passage？(Critical thinking)
Darwin was a determined man.He had strong curiosity and interest in science and was good at thinking and making discoveries.
2．What other good qualities can we learn from Darwin？Give your reason.(Creative thinking)
Darwin was serious and cautious because he did a lot of research and found more evidence to make his idea convincing.
Due to long-term thinking，patience and hard work，he made great achievements in science.
Charles Darwin's strong love of nature，careful observation of nature，daring spirit of seeking truth from nature and endless patience in finding solid evidence from nature inspire us a lot.
As high school students，we should observe nature more carefully in the future in order to cultivate not only our critical thinking ability but also our creative thinking ability.Only in this way can we reveal something extraordinary in our seemingly ordinary life.
Charles Darwin was a geologist and naturalist,1.__________(fascinate) by rocks，plants and animals.He left England on the ship，the Beagle，in 1831.The journey gave him the chance 2.________(study) various living things in their natural environments.He noticed that some species of animals were very similar 3.__ each other.
At that time，people believed that all species 4.____________ (appear) on Earth at the same time，and had not changed since.But Darwin began to think differently.
When the ship reached the Galápagos Islands in 1835，it 5._____(be) the birds that interested him the most.He suspected that the different finches had evolved from a common ancestor,6._____ had arrived on the islands a long time before.
It was a 7.__________(complete) new idea—a theory of evolution.Darwin explained this theory in his book，On the Origin of Species.Many people refused to believe that living things,8._________(include) humans，had evolved from lower forms of life.But Darwin's scientific studies were so convincing 9.____ more and more people started to believe his theory.
Today，the book is regarded as one of the most important works ever 10._______(write)．
Summary
fascinated
to study
to
had appeared
was
which
completely
including
that
written
The captain of the ship, the Beagle, wanted someone who would “profit by the opportunity of visiting distant countries yet little known”.
The person who answered the call was not the captain’s first choice. It was a young man who had left medical school without completing his degree. What’s more, he had recently received a letter from his father predicting that he would be “a disgrace to yourself and all your family”. Despite all this, his adventures on this ship would lead to one of the most important scientific discoveries of all time.
主语
谓语
who引导定语从句
宾语
过去分词短语作后置定语
who引导定语从句
强调句型
介词短语作后置定语, 修饰a letter
让步状语
主语
谓语
Analyze the key points of the text
Paragraph 1
同位语
predicting that...作后置定语, 修饰a letter
that引导宾语从句
The young man in question, Charles Darwin, was a geologist and naturalist, fascinated by rocks, plants and animals. He left England on the ship, the Beagle, in 1831. The journey gave him the chance to study various living things in their natural environments. After Darwin had spent some time in South America, his room on the ship was crowded with samples of the plants and animals he had collected. As he studied these, he asked himself the question: how did different species come to exist
介词短语作后置定语
作The young man 的同位语
过去分词短语作状语
不定式短语作后置定语
（that/ which）定语从句
时间状语从句
同位语从句
Paragraph 2
At that time, people believed that all species had appeared on Earth at the same time, and had not changed since. But Darwin began to think differently. He noticed that some species of animals were very similar to each other. Maybe animals evolved as they adapted to their changing environments It was just an idea, but enough to inspire Darwin to look for more evidence.
that引导的宾语从句
that引导的宾语从句
时间状语从句
Paragraph 3
When the Beagle reached the Galápagos Islands in 1835, Darwin saw a variety of new species, but it was the birds that interested him the most. Darwin noticed that there was a difference between the finches on each of the islands. It seemed their beaks had evolved according to what food was available on that particular island.
=various/ all kinds of
强调句型
It seemed （that）
what引导的宾语从句
Paragraph 4
时间状语从句
Darwin suspected that the finches had evolved from a common ancestor, which had arrived on the islands a long time before. Over time, it had slowly evolved into many new species. And that was the answer to how new species of plants and animals came to exist: they evolved from earlier ancestors.
that引导的宾语从句
which引导的非限制性定语从句
随着时间的推移
how引导的宾语从句
产生；存在
同位语
Paragraph 5
It was a completely new idea—a theory of evolution. Darwin explained this theory in his book, On the Origin of Species. It was
not published until 1859 and immediately caused a storm. Many people refused to believe that living things, including humans, had evolved from lower forms of life. They were shocked. But Darwin’s scientific studies were so convincing that more and more people started to believe his theory.
同位语
同位语
引导时间状语从句
引起轰动
同位语
so…that意为“如此……以至于”，引导结果状语从句
Paragraph 6
Today, On the Origin of Species is regarded as one of
the most important works ever written. It has changed ideas about life on Earth forever. And it all began with the journey on the Beagle.
主语
谓语
过去分词短语作后置定语
started with
Paragraph 7
Preview language points and recite the key points of the text.
Homework(共14张PPT)
Using language—Listening
Unit 5
Revealing nature
1. Understand the diversity of creatures in nature, and stimulate students’ interest in nature;
2. Understand the harmonious relationship between human beings and nature.
How much do you know about cells and Bacteria
Cells
Bacteria
Listen to the podcast and choose the statements that are made.
1. Biodiversity is important.
2. Bacteria are always harmful to humans.
3. Some species of bacteria are used in food production.
4. Many species of bacteria recycle dead organic matter.
5. Our immune systems are able to fight off all germs.
√
√
Listen again and complete the fact sheet.
Cells
Every living thing is 1.______________.
They are like 2.______________________________.
In the human body there are about 3._____________ human cells and around 4.________________ bacteria cells.
Bacteria
Most bacteria in the human body can 5._________________.
In the food production process, bacteria can 6.__________ dead organic matter.
break down
help with digestion
thirty-nine trillion
thirty trillion
bricks that are used to build houses
made up of cells
Complete the boxes with the expressions from the podcast.
Do you know about… Have you heard of…
By the way, ... In fact, ...
Actually, ... Speaking of which, ...
Checking background knowledge
Do you know about…
Have you heard of…
Adding information
By the way, …
Actually, …
In fact, …
Speaking of which, …
Listening materials
Jenny: Hello, and welcome to Science Under the Microscope, a science programme for teens. I’m Jenny.
Josh: And I’m Josh.
Jenny: This week, as part of our series on biodiversity, we are discussing microorganisms. They are the oldest form of life on Earth. Scientists believe they first emerged around three and a half billion years ago!
Josh: That’s incredible!
Jenny: But you can only see them with a microscope, as these living things are very very small. We’re talking about life at the level of the cell. Do you know about cells, Josh
Josh: Erm... I’m afraid not. What exactly is a cell
Jenny: Every living thing is made up of cells. They are like bricks that are used to build houses. By the way, most microorganisms are single-celled. This means that they consist of just one cell.
Josh: How strange!
Jenny: Actually, we’re the ones who are unusual. The vast majority of life on this planet is made up of single-celled microorganisms. They’re everywhere! In the air, in water, there are even microorganisms... inside you. I’m talking about bacteria. Have you heard of bacteria, Josh
Josh: I have, Jenny. But bacteria, inside me Yuck!
Jenny: [laughs] That’s right. You have lots of them living in your body. In fact, an average human body contains about thirty tillion human cells, and around thirty-nine trillion bacteria cells.
Josh: Seriously Oh, this is making my stomach turn.
Jenny: Speaking of which, most of the bacteria in your body help with digestion. And they help make the food that goes into your stomach, too. Without bacteria, we wouldn’t be able to make cheese, yoghurt, vinegar...
Josh: Really I didn’t know that!
Jenny: Oh, and bacteria are also useful at the other end of the food production process. They have an important role dealing with your waste and that of other organisms.
Josh: Euw! You mean what goes down the toilet
Jenny: Yes. Bacteria break down this waster and other dead, organic matter, like fallen leaves, into nutrients.
Josh: Oh I get it. And these nutrients go back into the soil where they can be used by plants!
Jenny: That’s it exactly.
Josh: All right. Although some of the bacteria may cause diseases in humans, plants and animals, they aren’t all bad...
Work in pairs
Look at the pictures of the species native to different regions of China. Talk about biodiversity in China using the words and expressions in this section. Do online research to find more information.
本课结束(共19张PPT)
Unit 5
Revealing nature
单元词汇 集中识记
重点词汇
拓展词汇
核心短语
重点 词汇
1. n.种子，籽
2. n.样本
3. n.(动物的)原种，祖先
4. n.特征，特性
5. v.减少
6. n.陆龟
7. v.责怪，指责；把……归咎于
8. n.山羊
seed
sample
ancestor
characteristic
decline
tortoise
blame
goat
9. adj.原始的，低等的
10. adv.遍及全世界
11. adj.巨大的，特大的n.卓越人物；巨人
12. adj.梳状的
13. n.(古代的)神话
14. n.传说，传奇(故事)
15. n.杀虫剂，农药
16. n.根
primitive
worldwide
giant
comb-like
myth
legend
pesticide
root
17. n.辣椒
18. n.网络犯罪
19. n.厘米
chilli
cybercrime
centimetre
Because of global warming and illegal hunting，the population of species is declining every day，which is a worldwide phenomenon.The characteristics of creatures are changing too.Human activities are to blame for all this.However，in this primitive village，you can see various kinds of animals，such as goats，tortoises and even some unknown giant animals.No pesticides are used in the field here.Some people visited it to buy produce and even some samples are taken away by biologists to do research on evolution.The village is a myth for people！
语境助记——精品原创 欣赏背诵
拓展 词汇
1.distant adj.遥远的
→ n.距离
→ adv.遥远地；疏远地
2.disgrace n.丢脸，耻辱
→ n.优雅，高雅；体面
→ adj.不光彩的，可耻的
3.geologist n.地质学家
→ n.地质学
→ n.地理
distance
distantly
grace
disgraceful
geology
geography
4.suspect v.猜想，怀疑，觉得
→ adj.怀疑的；可疑的
→ n.怀疑；疑心；嫌疑
5.evolve v.进化
→ n.进化(论)
6.generate v.产生，创造
→ n.一代人
suspicious
suspicion
evolution
generation
7.detect v.发现，察觉(尤指不易觉察到的事物)
→ n.发现
→ n.侦探
8.link v.把……联系起来；连接
→ adj.有关的
detection
detective
linked
1.The man is always distant towards his neighbours，so his neighbours often keep him at a distance.
2.The police suspected that he was the murderer but they didn’t find anything suspicious.
3.He has such sharp eyes that he can detect small changes and suspicious signs like a detective.
4.The boy is keen on geography and hopes to become a geologist in the future.
语境助记——精美靓句 赏读感悟
核心 短语
1. 响应号召
2. 是耻辱，是丢脸的事
3. 首选
4. 有史以来；一直
5. 讨论中的；考虑中的
6. 挤满；充满
7. 出现；产生
answer the call
be a disgrace
first choice
of all time
in question
be crowded with
come to exist
8.be similar to ___________
9.adapt to ______________
10.a variety of ___________
11.be regarded as _____________
12.be native to ____________ ________
municate with ____ ______
14.tiny amounts of _______
15.drive...away ___ _______
与……相似
适应/适合……
各种各样的
被认为是……
源于……的，原产于……
与……交流
微量的
把……赶走
第一组 (with短语)
be charged with...被控告……
be surrounded with...被……围绕
be filled with...被……填满
短语块记——联想归纳 分组积累
第二组 (in短语)
in danger 在危险中；垂危
in debt负债
in charge主管；负责
in demand 需要
in effect 有效；实际上
第三组 (come to 短语)
come to oneself恢复知觉，恢复正常
come to sb’s attention/notice受到某人注意
come to the point谈正题，谈主要问题
come to a conclusion/decision作出总结/决定
come to an agreement达成一致
come to life 活跃起来；(仿佛活着)开始动起来
本课结束(共24张PPT)
Writing—Writing an observational journal
Unit 5
Revealing nature
细读文本
写作指导
写作实践
细读 文本
1.How were the daffodil bulbs planted
A.The daffodil bulbs were put facing each other.
B.The daffodil bulbs were piled together.
C.The pointed ends of the daffodil bulbs faced up.
D.The daffodil bulbs were buried separately.
Activity 1 Read for some details.
√
2.What can we know about the container
A.The container was put in a cool，dark place all the time.
B.The container was put in a sunny，warm place all the time.
C.The container was moved to a sunny，warm place in the third week.
D.The container has been moved to a sunny，but cool place by the third
week.
√
Activity 2 Read for the structures.
Ⅰ.Read the observational journal and you will find that observational journals are written using as a clue.
time
Ⅱ.According to the observational journal，we can learn when we write an observational journal，we can use the following outline.(写作模板)
Opening：(The first part) I buried in my garden/basin.
Account：(The second part) A few days later，I found .
Another few days passed the were coming into leaves.
Seeing ，I added some water into .
Summary：(The third part) How amazing it is to watch a .
Find the sentences to tell us the growing process.
Activity 3 Read for some good sentences.
答案 1.The daffodil bulbs have been planted side by side in soil，with the pointed ends facing up.
2.A single stem has sprouted from each of the bulbs.
3.The stems have grown to around 20 centimetres tall and each has produced a single flower.
写作 指导
本单元写作项目是描写植物生长过程的观察日记。观察日记多是亲身经历和耳闻目睹的事情，所以要用第一人称来写；日记多是记述发生过的事情，因此常使用一般过去时，但使用时必须灵活掌握。日记应条理清楚，写出真实感。此外，应注意日记的格式，包括日期、星期和天气的书写位置。
篇章结构
一般采用三段式结构：
第一段：表明写作目的；
第二段：为主体部分，记录植物的成长过程；
第三段：记录作者的感受。
常用表达
常用短语
1.growth conditions of the plant 植物的生长条件
2.a hole large enough足够大的洞
3.put the earth back in the hole 把土放回洞里
4.up to 20 feet in length长达20英尺
5.select proper seeds选择合适的种子
6.a light application of fertilizer轻施肥料
常用语句
1.On the first day，I put some seeds into a basin.
第一天，我把一些种子放进一个花盆。
2.Then I poured some water into the basin，for this plant...
然后我把一些水倒入花盆，因为这种植物……
3.I placed the basin under the sun.
我把花盆放在阳光下。
4.Several days later，the young plants began to grow out of the soft soil.
几天后，幼苗开始从松软的土壤中长出来。
5.I put the basin in the room to avoid the hot sun.
我把花盆放到房间里来避开烈日。
6.These young plants began to grow rapidly...
这些幼苗开始快速地生长……
7.Now they have grown into tall plants.
现在它们已经长成了高高的植物。
8.I’m surprised at...
我对……感到惊讶。
写作 实践
假如你是李华，你想研究一下向日葵从种子到植株的生长过程，请根据下面的提示写一篇观察日记：
1.你把向日葵种子埋进一个花盆里，浇了些水；
2.几天后，盆中长出了幼苗；你把花盆放在屋里，避免阳光暴晒；
3.幼苗在茁壮地成长，几天后就长得很高了；
4.你对于它的生长很是惊讶。
第一步 审题谋篇
[审题]
写作要求是写向日葵从种子到植株的生长过程。写作时应注意下面几点：
1.确定文体：这是一篇日记，写作中应注意日记的几大要素。
2.主体时态：文章应以一般过去时为主。
3.主体人称：以第一人称为主。
[谋篇]
第一段：介绍自己要观察记录的内容及目的；
第二段：介绍向日葵的发芽及生长过程；
第三段：表达自己的感受。
第二步 遣词造句
[核心词汇]
1.种子 _____
2.把……埋进…… ____________
3.把……倒入…… ____________
4.带着极大的耐心 __________________
5.从……中长出来 _____________
seed
bury...into...
pour...into...
with great patience
grow out of...
[连词成句]
1.一天，我把一些向日葵种子埋进一个花盆里。(bury...into...；seed)
______________________________________________________________
2.花盆里有肥沃的泥土。(rich)
______________________________________________________________
3.我把一些水倒入花盆里。(pour...into...)
______________________________________________________________
4.之后，我开始以极大的耐心观察它。(observe)
______________________________________________________________
One day I buried some seeds of sunflowers into a basin.
There was some rich soil in the basin.
I poured some water into the basin.
After that，I began to observe it with great patience.
5.几天后，一些绿色的嫩芽从土里长出来，非常可爱。(grow；lovely)
____________________________________________________________________________________________________________________________
6.看到土有点干时，我又加了些水。(dry；add)
______________________________________________________________
Several days later，some green shoots grew out of the soil and they were so lovely.
When I saw the soil was a little dry，I added some water to it again.
第三步 句式升级
1.用定语从句连接句1和句2。
One day I buried some seeds of sunflowers into a basin，______________
.
2.用after doing...连接句3和句4。
，I began to observe it with great patience.
where there was
some rich soil
After pouring some water into the basin
3.用定语从句改写句5。
Several days later，some green shoots grew out of the soil，___________
.
4.用现在分词作状语改写句6。
，I added some water to it again.
Seeing that the soil was a little dry
which were
so lovely
第四步 组句成篇
用适当的过渡词语，把以上词汇和句式，再加上联想内容，组成一篇英语短文。
参考范文
One day I buried some seeds of sunflowers into a basin，where there was some rich soil.After pouring some water into the basin，I began to observe it with great patience.Several days later，some green shoots grew out of the soil，which were so lovely.Seeing that the soil was a little dry，I added some water to it again.After several days，these young plants grew into some tall plants，which were very strong.I was surprised at what I saw that day! How amazing it is to watch a seed become a tall plant!
本课结束(共21张PPT)
Developing ideas—Reading comprehension
Unit 5
Revealing nature
读前清障
精读课文
读前 清障
Ⅰ.匹配单词(请把单词和其对应的英语解释连线)
1.link A.a very old and popular story that may or may not be
true
2.legend B.chemicals that farmers put on their crops to kill
harmful insects
3.detect C.the part of a plant that grows under the ground
4.pesticide D.to make a connection between two or more things or
people
5.root E.to discover or notice sth, especially sth that is not
easy to see, hear, etc.
Ⅱ.选词填空
be native to，adapt to，a variety of，tiny amounts of，drive...away
1.Human beings will continue to the changing climate in both ordinary and astonishing ways.
2.There are ethnic groups showing their unique dances and songs to the audience.
3. money are spent on advertisements every year to promote the production.
adapt to
a variety of
Tiny amounts of
4.For safety，the police are trying to the crowd in the street.
5.Much to our surprise，here lives a kind of strange insects ___________
Xinjiang.
drive away
native to
be native to，adapt to，a variety of，tiny amounts of，drive...away
精读 课文
While-reading
Match the main idea with each paragraph.
Para.1 A.Plants use chemicals to communicate with each other.
Para.2 B.Plants use sound to communicate.
Para.3 C.Talking plants have long been a thing of myths and
legends.
Para.4 D.New research has shown that plants can communicate.
Para.5 E.Maybe one day we’ll be able to “talk”with plants.
Para.6 F.Plants use the “wood wide web”to communicate.
Ⅰ.Fast-reading for main ideas
Activity 1 细节把握
1.What is the main idea of the first two paragraphs
A.Marco Polo spent most of his time studying plants.
B.There are some legends about talking trees.
C.In the movie Avatar，trees can save people.
D.New research has revealed that plants appear to communicate.
Ⅱ.Careful-reading for details
√
2.Plants can release chemicals to do the following things except .
A.warning or calling for help
B.driving insects away
C.poisoning insects
D.attracting certain insects
√
3.What can we infer from paragraph 4
A.People can’t hear the noise created by plants because they can’t use
sound to communicate with them.
B.All the plants can make noises with their roots.
C.Only chilli plants can tell if a neighbouring plant is helpful or
unfriendly.
D.When some plants make clicking noises，perhaps they suggest drought
is coming.
√
4.What can plants do through the “wood wide web”？
A.They can build a “firewall”to help prevent attacks.
B.They can steal food from each other.
C.Small plants can send food to bigger ones.
D.They can use poisons to attack the insects.
√
Activity 2 深层理解
1.The text is likely to appear in .
A.a newspaper advertisement
B.a history textbook
C.a science magazine
D.a guidebook
√
2.The writing style of the passage is .
A.Narration
B.Argumentation
C.Exposition
D.Description
√
3.What can we learn from paragraph 3
A.Plants can release chemicals from the roots.
B.Plants can release chemicals when attacked.
C.Chemicals from some plants destroy the other plants.
D.Scientists find the method of growing crops without pesticides.
√
4.Which of the following shows the structure of the passage
①＝paragraph 1 ②＝paragraph 2 ③＝paragraph 3 ④＝paragraph 4 ⑤＝paragraph 5 ⑥＝paragraph 6
A.①/②/③④⑤/⑥
B.①②/③④⑤/⑥
C.①②③/④⑤/⑥
D.①/②③④⑤/⑥
√
Post-reading
Scientists are learning the secret ways in which plants “talk”to each other.It has been known for some time that plants use chemicals 1.__
(communicate) with each other.When 2. (attack) by insects，the plant releases chemicals from the leaves that 3.____________
(eat).This is like 4. warning.When another plant detects the chemicals，it starts to release 5. (it) own，different chemicals.Some of these chemicals drive insects away.
Activity 1 课文语法填空
to
communicate
attacked
are being
eaten
a
its
6. (surprising)，plants also use sound to communicate.
Some plants make noises with their roots.Some trees make clicking noises when there is not enough water,7. (indicate) drought is arriving.
Most surprisingly of all，plants have an 8. (amaze) system of communication that can link nearly every plant in a forest.It is called the “wood wide web”，9. is in some ways similar to the Internet we use.Using the “wood wide web”，plants can share information and even food 10. each other.
Surprisingly
indicating
amazing
which
with
1.With us long believing that talking plants are fantasy，new research has revealed something amazing：it appears that plants can communicate after all.
[句式分析] 此句是一个复合句，with复合结构(with＋代词＋doing)作
，believing 作 ， that引导的从句为 从句；it
appears that 句型中， 作形式主语，真正的主语是由 引导的从句。
[自主翻译] ___________________________________________________
_______________________________________________________________
Activity 2 长难句理解
状语
宾语补足语
宾语
it
that
我们一直认为会说话的植物只存在于幻想之中，但新研究
有了令人惊奇的发现：植物间似乎确实可以交流。
2.It has been known for some time that plants use chemicals to communicate with each other.
[句式分析] 此句是一个 句，it 为 主语，真正的主语是_____
引导的从句。
[自主翻译] ___________________________________________________
复合
形式
that
人们早就知道植物可以利用化学物质进行交流。
3.Some trees make clicking noises when there is not enough water，indicating drought is arriving.
[句式分析] 此句是一个 句，when 引导 从句，indicating...作 状语。
[自主翻译] _______________________________________________________
复合
时间状语
伴随
还有些树木在水分不足时会发出咔嗒声，以示干旱就要来了。(共17张PPT)
Using language—Past perfect
Unit 5
Revealing nature
语法感悟
语法精讲
达标检测
语法 感悟
感知以下课文原句，并完成方框下面的练习
1.It was a young man who had left medical school without completing his degree.
2....he had recently received a letter from his father...
3.At that time，people believed that all species had appeared on Earth at the same time，and had not changed since.
4.It seemed their beaks had evolved according to what food was available on that particular island.
过去完成时表示过去某一时刻或某一动作之前已完成的动作或存在的状态，也可以说是“过去的过去”。其构成是： ，如以上句子。
had＋过去分词
语法 精讲
一、过去完成时的意义和构成
过去完成时表示过去某一时刻或某一动作之前已完成的动作或存在的状态(亦可以说是“过去的过去”)。过去完成时由“had＋过去分词”构成。
He had already been to New York earlier in the week.
本周早些时候他去过纽约。
The country had not yet recovered from the effects of the war.
这个国家尚未从战争的影响下恢复。
二、过去完成时的基本用法
1.表示在过去某个动作前已经完成的动作，即“过去的过去”。常见的时间状语包括由by，before等构成的短语以及when，by the time 等引导的状语从句。
When she heard that her father had died in the accident，she burst out crying.
当她听说她父亲在这次事故中丧生时，她放声大哭起来。
By the end of last year，we had done several experiments on the seed.
到去年年底，我们已经对种子做了一些实验。
2.表示过去未曾实现的希望、打算和意图，常用expect，hope，intend，mean，suppose，think，want等动词。
We had hoped that you would be able to visit us.
我们原本希望你会来拜访我们。
I had meant to take a good holiday this year，but I was not able to leave.
我本打算今年好好去度假，但是脱不开身。
三、过去完成时在几个重点句型中的应用
1.用于宾语从句
过去完成时表示一个过去的动作先于另一个过去动作发生，多见于宾语从句。一般说来，当主句中用了know，realize，think，suppose，guess，find，discover，decide，remember，forget等动词的一般过去时，如果宾语从句中的动作先于主句的动作发生，从句的谓语动词通常用过去完成时。
We realized we had lost our way.
我们意识到我们迷路了。
I didn’t think about asking her if she had passed her examination.
我没有想问她是否通过考试了。
2.在no sooner...than，hardly/scarcely...when句型中，主句用过去完成时，意为“一……就……”。
I had hardly stepped into the classroom when the bell rang.我一踏入教室，铃声就响了。
No sooner had he rushed out than the house fell down.
他刚冲出去，房子就塌了。
3.在it was the first/second/...time that...句型中，that从句常用过去完成时。
It was the first time that I had read a book about how humans evolved.
这是我第一次读有关人类如何进化的书。
4.在虚拟语气中表示与过去事实相反的假设，if从句和wish/would rather/if only等后面的从句用过去完成时。
If he had taken my advice，he would have passed the driving test.
如果他听了我的建议，他就会通过驾驶考试了。
I’d rather you hadn’t been present.
我宁愿你当时不在场。
四、过去完成时与一般过去时、现在完成时的区别
1.一般过去时侧重发生在过去的客观事实；而过去完成时强调动作发生在过去的过去，一定有一个表示过去的参照点。
I had been at the bus stop for 30 minutes when a bus finally came.
当公交车最终到来的时候，我已经在车站等了30分钟。
He once worked as a teacher for 5 years，but now he is a successful manager.
他曾做了5年的教师，但现在他是一位成功的经理。
2.过去完成时以过去作为时间参照来谈论更远的过去；现在完成时以现在作为时间参照来谈论过去。
The geologist has lived in Beijing for five years.
这位地质学家已经在北京住了五年了。(到目前为止)
I had lived in Beijing for three years before I went to Shenzhen.我去深圳之前曾在北京住了三年。(动作发生在去深圳之前)
达标检测
阅读下面短文，用所给动词的适当形式填空
Mr Smith was an ordinary-looking man，but he was very humorous.He could speak Chinese fluently，which shocked us all at first.Later，he told us that he 1. (learn) Chinese for more than two years before he came to China.He always tried his best to make his lessons lively and interesting.In his lessons，he often 2.___________(mention) Egypt.He said that he 3. (be) there for many times.Mr Smith was so kind and loved us so much.He would persuade me to work harder.If I 4. (take) his advice，
had learned/learnt
mentioned
had been
had taken
I would lead a better life now.One day，when Mr Smith heard that one of my classmates 5. (fall) off the stairs，he was so concerned that he hurried to the spot at once.Two years later，Mr Smith had to return to his homeland.When we got to the airport，the plane carrying him 6.____
(take) off.We were so disappointed! We will miss Mr Smith forever.
had fallen
had
taken(共26张PPT)
Vocabulary & Starting out
Unit 5
Revealing nature
1．Learn the words of Unit 5.
2．Understand the importance of nature，and think about how to protect our nature.
Activity 1 Read the words after the video.
Activity 2 Say the meaning of the following words and then read them together loudly.
1．seed
2．distant
3．disgrace
4．geologist
5．sample
6．evolve
7．suspect
8．ancestor
9．generate
n．种子，籽
adj.遥远的
n．丢脸，耻辱
n．地质学家
n．样本
v．进化
v．猜想，怀疑，觉得
n．(动物的)原种，祖先
v．产生，创造
10．characteristic
11．decline
12．blame
13．primitive
14．worldwide
15．giant
16．myth
17．legend
18．detect
19．link
20．cybercrime
n．特征，特性
v．减少
v．责怪，指责；把……归咎于
adj.原始的，低等的
adv.遍及全世界
adj.巨大的，特大的
n．(古代的)神话
n．传说，传奇(故事)
v．发现，察觉(尤指不易觉察到的事物)
v．把……联系起来；连接
n．网络犯罪
Activity 3 Learn other forms of some words.
1．distant adj.遥远的→ distance n．距离
2．evolve v．进化→evolution n．进化(论)
3．generate v．产生，创造→generation n．一代；产生；生殖
4．characteristic n．特征，特性adj.明显的，独特的→character n．性格，特性，角色
5．detect v．发现，察觉(尤指不易觉察到的事物)→detection n．侦查，发觉，发现
Activity 4 Fill in the blanks with the correct forms of the words in brackets.
1．The man is always _______ towards his neighbors，so his neighbors often keep him at a ________.(distant)
2．In the course of __________, some birds have lost the power of flight.That is to say，some birds can’t fly while they ______.(evolve)
3．There are five __________ in this play，but they have their own _______________.(character)
4．The new test should aid in the early _________ of the disease.With the new test，doctors can ______ the disease.(detect)
distant
distance
evolution
evolve
characters
characteristics
detection
detect
Activity 5 Learn some phrases.
1．响应号召
2．是耻辱，是丢脸的事
3．源于……的，原产于……
4．讨论(议论)中的
5．挤满
6．适应
7．各种各样的，种类繁多的
8．是……的栖息地/家乡
9．追溯到
10．完成(任务)；执行；实施
answer the call
be a disgrace
be native to
in question
be crowded with
adapt to
a variety of
be home to
date back to
carry out
Activity 6 Complete the following sentences using the correct forms of the above phrases.
1．People in Ethiopian highlands have __________ living at high altitudes.
2．We do hope that the school will _________ more similar activities in the future.
3．My father warned me against going to the Great Wall because it ________________ tourists.
4．When I was 18，I received the phone call which made that dream a reality：I became a member of the company ______________ 1925.
adapted to
carry out
was crowded with
dating back to
1．What are they
Before you watch
Komodo dragon
(科莫多巨蜥)
Duck -billed platypus
(鸭嘴兽)
Nautilus
(鹦鹉螺)
Origin
Komodo dragons were first encountered by Western researchers in 1910 who said the ancestor of the Komodo dragon most likely evolved in Australia and spread westward, reaching the Indonesian island of Flores 900,000 years ago.
Size
The Komodo dragon is the largest lizard in the world. It can grow to three metres in length and can weigh about 135 kilograms. Despite its size and weight, it can run for short distances at up to 20 kilometres per hour.
Origin
The oldest discovered fossil of the modern platypus dates back to about 100,000 years ago.
Features
The duck-billed platypus is a small egg-laying mammal (up to 60 cm in length) found only in Eastern Australia including Tasmania. As its name suggests, it has a mouth that looks like a duck’s bill, while its thick fur and flat tail are similar to those of a beaver（海狸）.
Origin
Fossil records indicate that the nautilus has survived relatively unchanged for around 500 million years.
“Living Fossil”
2．What makes them special
They are all species that exist ______________ years on earth.
They are old and _______.
thousands of
rare
1．Why do seeds need to travel
They need __________________.
2．How can the seeds travel
Seeds usually are carried by the ____，_____，_______ or ______.
3．How can this benefit plants
While you watch
1．Why do seeds need to travel
They need __________________.
2．How can the seeds travel
Seeds usually are carried by the ____，_____，_______ or ______.
3．How can this benefit plants
Plants can have a better chance at life.
a place to grow up
wind
water
animals
people
Task 1 Discussion
After you watch
What How Why
Maple seeds Carried by _____ Maple seeds have __________ that spin and keep them in the air for longer.
Depending on the ____________ of the wind, they can sometimes travel for hundreds of kilometers.
Coconut Carried by _____ When a coconut falls from a tree onto the beach, the _____ picks it up at high tide and carries it away to grow somewhere else.
Its hard _______ allows it to float on the water for a long time.
Fleshy fruits Carried by ______________ Many plants produce _________ fruits that animals like to eat.
The animal receives the nutrients of the fruit, but the _______ which can’t be digested is passed out later.
wind
water
animals or people
wings
strength
sea
shell
fleshy
digested
How can this benefit plants
How can this benefit plants
In fact, seeds have a _________ chance at life when they are further away from their parent plant.
Growing too close to the parent plant means seeds might not get enough sun, water and _________ from the soil.
Also, a species is more likely to _________ if its members are more widely spread.
better
nutrients
survive
Task 2 Complete the passage and read it carefully.
How Seeds Travel
Plants cannot move from place to place，but seeds can.They can travel great distances.They may 1.__________(carry) by the wind or upon the water.They may also be carried by animals or people.
Seeds that are carried by the wind often have special shapes.Maple seeds have wings that spin and keep them in the air for longer,2.________(allow) them to land in all kinds of places.Depending on the 3.________(strong) of the wind，they can sometimes travel for hundreds of kilometres.Coconuts are carried along by ocean currents.When a coconut falls from a tree onto the beach，the sea picks it up at high tide and carries it away to grow somewhere else.4.___(it) hard shell allows it to float on the water for a long time.Another way for seeds to travel is through the digestive systems of animals.Many plants produce 5.______(flesh) fruits that animals like to eat.The animal receives the nutrients of the fruit,6.___ it does not digest the seed，which is passed out some time later.
be carried
allowing
strength
Its
fleshy
but
Of course，animals move，so the seed can easily end up a long way away from the parent plant，especially if the fruit is eaten by a bird.In fact，seeds have a 7.______(good) chance at life when they are further away from their parent plant.Growing too close to the parent plant means seeds might not get enough sun，water and nutrients from the soil.Also，a species is more likely to survive if its members are more 8.______(wide) spread.That’s 9.___ nature has come up with all sorts of different ways for seeds to travel.How and why seeds travel are just some examples of the wonderful ways in 10._____ nature works.Perhaps we can learn something from the natural world by branching out and exploring the various wonders of nature.
better
widely
why
which
1．Read the words fluently and memorize them.
2．Preview the text.
Homework
