外研版（2019）必修 第一册Unit 5 Into the wild Starting out＆Understanding ideas课件（共50张PPT）

(共50张PPT)
Unit 5 Into the wild
Starting out & Understanding ideas
Ⅱ.单词清障
阅读词汇
1.Atlantic adj.__________
2.whale n.____
3.crash v.____________
4.chemical n.________
5.creature n.____________
大西洋的
鲸
暴跌；猛撞
化学品
生物，动物
写作词汇
1._______n.慈善机构，慈善团体
2._____v.寻找，寻求
3._________n.教授
4.________v.量，测量n.尺度；措施，方法
5.________n.位置，地方；职位
6._________n.百分比
7.________v.破坏，毁掉
charity
seek
professor
measure
position
per cent
destroy
拓展词汇
1._______adj.一年一度的，每年的→annually adv.每年一次
2._________n.迁徙，迁移，移居→migrate v.迁徙，迁移，移居
3.__________v.测定，确定；决定→determined adj.坚定的，有决心的
→determination n.决心，决定，坚定
4.__________adv.终于，最终→eventual adj.最后的，最终的
5.________n.解决，解决方法→solve v.解决；解答
annual
migration
determine
eventually
solution
6.________n.难以理解的事物，谜，奥秘，神秘→mysterious adj.神秘的，难以解释
的
7.________adj.惊人的，了不起的→amazed adj.大为惊奇的，惊讶的→amaze v.使
惊奇，使惊诧→amazement n.惊诧，惊奇
8.________v.活下来，幸存→survivor n.幸存者，生还者→survival n.幸存，存活
9.______n.影响，结果→effective adj.有效的，产生预期结果的
mystery
amazing
survive
effect
Ⅲ.短语筑基
1.数以百万的___________
2.……的数量______________
3.砍倒，削减__________
4.导致，造成（后果），通向________
5.保证，确保__________
6.in search of____________
7.the solution to________________
8.as much as______
9.feed on____________
10.once again______
millions of
the number of
cut down
lead to
make sure
寻找，搜寻
……的解决办法
多达
以……为食
再次
Ⅳ.句型初探
1 句型公式：过去分词短语作后置定语
教材原句:A team of scientists led by Professor Eli Shlizerman at the University
of Washington has now found the answer.
句式仿写:这是大学授予的最高荣誉。
It's the highest honor ______________________.
given by the university
2 句型公式：关系副词引导定语从句
教材原句:These two pieces of information—the time of day and the point where
the sun is in the sky—allow the butterfly to determine the way to go.
句式仿写:这是我住了三年的房子。
This is the house __________________ for three years.
where I have lived
3 句型公式：the+比较级...，the+比较级...“越……就越……”
教材原句:The more we know about this lovely creature, the greater the chance
it will survive and keep its place in the natural world for a long time to come.
句式仿写:你越用功，进步就越大。
___________ you work, __________________ you will make.
The harder
the greater progress
Ⅰ.文本理解
Reading for the main idea
What is the main idea of the text
_______________________________________________________________________
__________________
The text is mainly about the monarch butterfly's migration on the basis of studies by scientists.
Reading for the structure
Fill in the following blanks with proper words.
The Monarch's Journey The purpose of animals' migration They migrate to find food, 1._____ a partner or 2.____________
warmer weather.
The way of monarchs' migration The monarch butterfly is able to tell 3._______________. And it
4._________ the position of the sun with its eyes. Using these
two pieces of information, the monarch butterfly 5.__________ the
way to go.
seek
in search of
the time of day
measures
determines
The reason why the number of monarchs isfalling People 6.______________ the natural environment by
7._____________ trees and using chemicals that kill the plants
that monarch caterpillars eat.
How to protect the monarchs ·People have been working together to record their migration and
make sure that there are enough plants for them to 8.________.
·The more we know about these lovely creatures,
9.___________the chance they will survive.
are destroying
cutting down
feed on
the greater
续表
Reading for the details
Choose the best answer according to the text.
1. Which is not the purpose of animals' migration ( )
C
A. To find food. B. To find a partner.
C. To escape being killed. D. To find warmer weather.
2. What does the word “that” refer to in the last sentence of Paragraph 1 ( )
A
A. Migration. B. The butterfly. C. The partner. D. Weather.
3. What's the factor driving scientists to find the solution to the mystery of the
monarch ( )
B
A. The monarch is able to tell the time of day.
B. The monarch is in serious danger.
C. The monarch can use its eyes to measure the position of the sun.
D. The monarch manages to reach the places where it will spend the winter.
4. What's the writer's attitude to people's efforts ( )
D
A. Negative. B. Neutral. C. Indifferent. D. Positive.
Ⅲ.课文回顾
Many animals move from one place to another at certain times of the year,
1._______ is called migration. Every autumn, 2.________（million） of North
American monarch butterflies begin their journey.
A team of scientists has found the monarch is able to tell the time of day,
and uses its eyes 3.___________（measure） the position of the sun. These two
pieces of information allow the butterfly 4.____________（determine） the way to
go. Eventually, it manages to reach the places 5._______it will spend the winter.
which
millions
to measure
to determine
where
The solution to the mystery of the monarch's 6.________（amaze） ability
comes at a time when it is 7.___ serious trouble. Its population 8.___________
（crash） by as much as ninety per cent in the last few years because of human
activities.
The research on the monarch's behaviour has however led to a greater
awareness of this creature. By 9.______（do） more research, the monarch
butterfly can keep 10.____（it） place in the natural world for a long time to
come.
amazing
in
has crashed
doing
its
Reading for thinking
1. Why is the number of monarch butterflies falling
_______________________________________________________________________
___________________________________________________
Because people are destroying their habitats by cutting down trees and using chemicals that kill the plants that monarch caterpillars eat.
2. What should you do with these amazing butterflies if you are a volunteer
_______________________________________________________________________
______________________________________________________________________________________________________________________________________________
If I am a volunteer, I will help people gain a deeper appreciation of these amazing butterflies, call on people to protect them and raise people's awareness of protecting their habitats.
Ⅱ.难句突破
1. These two pieces of information—the time of day and the point where the sun
is in the sky—allow the butterfly to determine the way to go.
【译文】这两条信息——一天中的时刻和太阳在天空中的位置——让黑脉金斑蝶
能够判定前进方向。
【分析】这是一个主从复合句。the time of day and the point where the sun is
in the sky是______语，解释说明information；关系副词where引导__________，修
饰先行词_________。
同位
定语从句
the point
2. They cut down trees and use chemicals that kill the plants that monarch
caterpillars eat.
【译文】他们砍伐树木,他们所用的化学制剂杀死了黑脉金斑蝶幼虫食用的植物。
【分析】这是一个主从复合句。第一个that引导__________，修饰 __________；
第二个that引导__________，修饰__________。
定语从句
chemicals
定语从句
the plants
3. If this works, there may come a time when the number of monarch butterflies
increases once again.
【译文】如果这些努力产生效果,黑脉金斑蝶的数量在未来有可能再次回升。
【分析】这是一个主从复合句。If引导______________，关系副词when引导
__________，修饰先行词_______。
条件状语从句
定语从句
a time
词句精讲
1 seek v.寻找，寻求，谋求
情境佳句
①The book inspires confidence in students who wish to seek their own answers.
这本书激发了希望寻求自己答案的学生的信心。
②He sought to explain the reason why he was late for the class.他试图解释他上课迟到的原因。
③It is wise to seek help as soon as possible.
尽快寻求帮助乃明智之举。
归纳拓展
seek （for） sth.寻求/寻找某事物
seek to do sth.设法做某事
seek one's fortune寻找成功致富之路，闯世界
seek one's advice/help/assistance征求某人的建议/请求某人的帮助/援助
seek out找出，找到
学以致用
［单句填空/完成句子］
① Local schools are seeking __________（reduce） the dropout rate.
to reduce
② You should deal with the problem caused by an offensive e-mail by ________
（seek） support from the receiver's friends.
seeking
③ 人们现在正在寻求用最少的能源创造最大效益的有效方法。
Now people are _____________________ of using the least energy to create the
greatest benefit.
seeking effective ways
2 measure v.量，测量 n.措施，方法；尺度
情境佳句
①Measure the full width of the window.
测量一下窗户的全宽。
②A man's success cannot be measured only by how much money he earns.
一个人的成功不能仅仅靠他挣了多少钱来衡量。
③The government has taken measures to bring down the high prices of daily goods.
政府已采取措施降低日常用品的高价。
归纳拓展
（1）measure...by...用……来衡量……
（2）take measures to do sth.采取措施做某事
make...to one's measure 按照某人的尺寸做……
误区警示
（1）measure作“措施”讲时，常用复数形式。
（2）measure用作及物动词时，后跟人或物，意为“量……”；用作连系动词时，后跟尺寸、面积等，意为“尺寸、面积等是……”。
学以致用
［单句填空/完成句子］
① My wife bought a piece of good quality cloth and made a suit ___ my own
measure.
to
② Nowadays many teenagers measure their success ____ how much public
support they get online, often through “likes”.
by
③ 你们应采取有效措施来改善你们的工作条件。
You should ________________________________ your working conditions.
take effective measures to improve
3 determine v.测定，确定；决定，决心
情境佳句
①You should determine what is right for you.
你应该决定什么是适合你的。
②He determined to work twice as hard as before to make up for the lost time.
他决心比以前加倍努力工作，以弥补失去的时间。
③She is determined to carry on with her education.
她决心继续自己的教育。
归纳拓展
（1）determine to do sth.决定做某事
determine on sth.决定某事
determine that...决定……
（2）determined adj.坚定的，有决心的
be determined to do sth.决心做某事
be determined that...决心……
（3）determination n.决心，决定，坚定
with determination坚决地
学以致用
［单句填空］
① He is a ___________ man and believes that _____________ and effort can
lead to success.（determine）
determined
determination
② My teacher's words woke me up, and I determined _________（study） harder.
to study
③ Realizing that he has wasted too much time, the boy is determined ________
（stop） playing video games.
to stop
④ His ___________（determine）look suggested that he wouldn't change his
mind.
determined
3 amazing adj.惊人的，了不起的，令人惊诧的
情境佳句
①This is an amazing program where you can share your ideas with students.
这是一个很棒的项目，在这里你可以和学生们分享你的想法。
②I'm sure the visitors will be amazed by the beautiful scenery in Jiuzhaigou Valley.
我相信游客们会被九寨沟的美丽景色所震撼。
③What amazed me most was the young boy handling a pen with his foot.
最让我吃惊的是那个用脚拿笔的小男孩。
归纳拓展
（1）amaze vt.使惊奇；使惊愕
（2）It is amazing that...令人惊讶的是……
（3）amazed adj.大为惊奇的，惊讶的
be amazed at/by对……很惊奇
be amazed to do...惊奇地做某事
（4）amazement n.惊奇
to one's amazement令某人惊奇的是
易混辨析
（1）-ing形式的形容词常用来说明事物或人本身具有的特征，意为“令人感到……的”；
（2）-ed形式的形容词常用来描述人的感觉，意为“感到……的”，还可以描述人的表情、声音等。
学以致用
［单句填空/完成句子］
① To his ___________, we were not ________ by his ________ achievements.
（amaze）
amazement
amazed
amazing
② I was amazed______ her knowledge of French culture.
at/by
③ 他竟然在大火中幸存下来，真令人惊奇。
___________________ he should have survived the big fire.
It was amazing that
5 survive v.活下来，幸存；比……活（或存在）的时间长
情境佳句
①We cannot survive for long without food and water.
没有食物和水我们就活不了多久。
②They can survive on very little money.
他们用很少的钱就可以生存。
③Dogs have a very good sense of smell and are often used to search for survivors in an earthquake.
狗有很好的嗅觉，经常被用来在地震中寻找幸存者。
归纳拓展
（1）survive sb. by...years比某人多活……年
survive from从……留存下来；从……流传下来
survive on sth.靠……继续维持生活
（2）survival n.幸存
survivor n.幸存者
误区警示
survive作“幸存；幸免于”讲时，其后直接跟宾语，不用加介词in或from。
学以致用
［单句填空］
① My grandma survived my grandfather ____ ten years.
by
② In many parts of the country, a family of five might struggle to survive ____
as little as ＄80 a month.
on
③ After the old man _________ the earthquake, he became one of the few
_________ of the family and his ________ made his old friends very happy.
（survive）
survived
survivors
survival
6 effect n.影响，结果；效果
情境佳句
①As we all know, tourism can have a great effect on the wildlife of the area.
我们都知道，旅游业对该地区的野生动物有很大的影响。
②He will see to it that your plans are quickly put into effect.他将确保你的计划很快实施。
③One of the most effective ways to reduce stress is to talk about feelings with a close friend.
减轻压力最有效的方法之一就是和亲密的朋友谈论感受。
归纳拓展
（1）have an effect on...对……有影响
take effect生效，开始起作用
put/bring sth. into effect实施计划；落实想法
come into effect （法律等）生效
in effect事实上
（2）effective adj.有效的；产生预期结果的
effectively adv.有效地
学以致用
［单句填空］
① Good books have had an effect ____ me since my childhood.
on
② Factories that gave out harmful gases were all shut down after the law came
_____ effect.
into
③ Setting your watch five minutes ahead is an _________（effect） way to
avoid being late.
effective
7 cut down 削减；砍倒
情境佳句
①They cut down trees and use chemicals that kill the plants that monarch caterpillars eat.（教材原句）
他们砍伐树木，他们所用的化学制剂杀死了黑脉金斑蝶幼虫食用的植物。
②My uncle hasn't been able to quit smoking, but at least he has cut down.
我叔叔一直没能戒烟，但至少他已经减少了。
③The electricity has been cut off because of the heavy rain.
由于大雨，电力供应被切断了。
归纳拓展
cut down on削减，缩减，减少
cut off剪掉；中断（供给）；阻挡
cut out剪下，裁剪；删去；停止做
cut across穿过，抄近路
cut up切碎
cut in插嘴，打断
学以致用
［单句填空］
① It is impolite for children to cut ___ when their seniors are talking.
in
② Most of us know we should cut down ____ fat, but knowing such things isn't
much help when it comes to shopping and eating.
on
③ You must cut ____ the vegetables before you eat them.
up
④ Everywhere man has cut ______ forests in order to grow crops.
down
8 lead to 导致；造成（后果）；通向
情境佳句
①It doesn't matter whether you turn right or left at the crossing—both roads lead to the park.
你在十字路口向右拐还是向左拐都没关系——两条路都通向公园。
②Modern science has given clear evidence that smoking can lead to many diseases.
现代科学已经给出了明确的证据，吸烟会导致许多疾病。
③What was it that led you to say that
是什么使你那样说的？
归纳拓展
（1）lead to中的to是介词，后接名词、代词或动名词作宾语
（2）lead the way带路，引路
lead sb. to do sth.引导某人做某事
lead sb. to sp.带领某人去某地
lead/live a...life过着……的生活
（3）take the lead带头；居首位
in the lead领先
词汇助记
He led the way, and led us to a village of Tibet. There we found the local people leading a happy life.
他带路，把我们领到了西藏的一个小村庄。在那里，我们发现当地人过着幸福的生活。
学以致用
［完成句子］
① 失败往往在于懒惰，而努力工作则通向成功。
Failure often lies in laziness while hard work _______________.
leads to success
② 随着农业的快速发展，这个小村庄里的村民现在过着幸福的生活。
With the fast development of agriculture, the villagers in the small village
____________________ now.
lead/live a happy life
③ 有他带路，我们毫不费力地到达了那里。
With him _______________, we got there without any difficulty.
leading the way
9 the+比较级...，the+比较级...
情境佳句
①The more difficult the questions are, the less likely he is to answer them.
问题越难，他回答出来的可能性就越小。
②The more, the better.
多多益善。
③Interestingly, the more cheerful the music was, the faster their heart rates were.
有趣的是，音乐越欢快，他们的心率越快。
归纳拓展
（1）“the+比较级..., the+比较级...”句型常表示“越……就越……”，其中逗号前是状语从句，逗号后是主句。
（2）此句型遵循“主将从现”原则。
（3）此句型的特点是前后都可以有所省略,特别是谚语、俗语，只要意义明确，越简练越好。
学以致用
［完成句子/单句写作］
① 的确，随着年龄的增长，我越来越觉得时间长了翅膀。
It's true that ______________, _________ I feel time has wings.
the older I get
the more
② 一般来说，手机越贵，质量越好。
Generally speaking, __________________ the mobile phone, __________ its
quality.
the more expensive
the better
③ 你对中国传统文化了解越多，你就对它越感兴趣。
_______________________________________________________________________
____________
The more you know about traditional Chinese culture, the more interested you will be in it.
Thanks