外研版（2019）必修 第一册Unit 5 Into the wild Understanding ideas 语言点课件 (共39张PPT)

(共39张PPT)
Unit 5 Developing ideas
The Monarch's Journey
黑脉金斑蝶的旅程
课文语言点课件
Understanding ideas
Words and expressions
Dictation（听写单词）
manage to do
the solution to
human activity
cut down trees
本课重点短语
1. migrate:(of an animal, typically a bird or fish) move from one region or habitat to another according to the seasons. v. 迁徙
migration n. 迁移
migrant n. 候鸟；移居者
immigrate v. 移民
例：秋天来了，鸟儿往南飞了。
As autumn arrives, the birds
_______ south.
They migrate to find food, seek a partner, or in search of warmer weather.
1
句意：动物为了觅食、寻找配偶或温暖的环境而迁徙。
migrate
seek-sought-sought
2. in search of : 搜寻，寻找
例：他们去澳大利亚淘金。
They went out to Australia __________ gold．
They migrate to find food, seek a partner, or in search of warmer weather.
1
句意：动物为了觅食、寻找配偶或温暖的环境而迁徙。
We are in search of a typist．
我们在招聘一名打字员。
The prospecting team traversed far and wide in search of mineral deposits．
地质勘探队为寻找矿藏走遍四面八方。
in search of
measure v. 测量；指（尺寸、长短、数量等）量度为
(1) It is certain that we need to take necessary measures to reduce our simple mistakes in writing.
仿写: 在我看来,你需要采取必要的措施去提高你的汉语口语。
In my opinion, you need to take necessary measures to improve your spoken Chinese.
① take measures/steps/action to do sth. 采取措施做某事
(2) The river (measure) at least 50 meters in width/wide, but the ten-year-old boy can swim across it within two minutes.
measures
(3) we live in a small room, (measure) about 5 metres by 6 metres.
measuring
②measure 表示“量起来有...长(宽、高等)时,是系动词, 后+量的结果，不用被动语态和进行时态。如果此意义的词/短语做后置定语（非谓语）, 要用现在分词”。
[w dθ]
It uses its eyes to measure the position of the sun.
2
该句中that指代the migration, that用来指代前面提到的内容，可以指代可数名词单数或者不可数名词。
例：我电脑的显示器比我爸电脑的显示器好。
The monitor of my computer is better than ____ of my dad's.
One of the most wonderful migrations in nature is that of the North American monarch butterfly.
3
句意：自然界最为壮观的迁徙之一就是北美洲黑脉金斑蝶的迁徙。
The population of China is larger than that of the UK.中国的人口数量比英国多。
that
★★One of the most wonderful migrations in nature is that of the North American monarch butterfly.
one of + adj./adv. 最高级 + n. 复数 (谓语动词用单数形式)
that 指代前文提到的名词，这一用法可以使句子更加简洁，避免重复与累赘。
代词 that/those/one/ones 的区别
that指代的名词的修饰语往往是the/this/that;而one指代的名词的修饰语一般为a/an/some/any
A chair made of steel is stronger than one made of wood.
The water in the cup is hotter than that in the pot.
that指代可数名词单数和不可数名词，可数名词复数用those；one指代可数名词单数,可数名词复数用ones。
I like this pen more than that one.
There were a few young people and some older ones in the house.
Mary’s handwriting is better than that of Peter.
These pictures are more beautiful than those.
that指代事物或人，one只能指代人。
He is the teacher, the one who is loved by the students.
The book on the table is mine, and that is a fiction.
PPT模板 http:///moban/
用that/those/one/ones填空。
The population of China is much larger that ______ of Japan.
A bridge made wood is not so strong as _______ made of steel.
I have a new coat and several old _______.
I don’t like this pen. Show me a better _______.
The price of wheat is higher than ______ of rice.
The students in our class work harder than ______ in their class.
Studying Wendy’s menu, I found that many of the items are similar to _______ of McDonald’s.
8. I wish I’d bought a few jars of honey. Did you notice the _____ they were selling by the roadside
that
one
ones
one
that
those
those
ones
PPT模板 http:///moban/
特指（the/this/that+n.） 泛指
(a/an/some/any/a few + n.)
可数名词单数/不可数名词 that one
可数名词复数 those ones
1. manage: v. 设法做到
管理，经营; 安排(时间、金钱等);
manage to do sth.设法做某事
例: 我无法知道他是如何找到我们的。
How he _________________ us is beyond us.
Somehow they managed to travel around 4,000 kilometers south and find their way to California or Mexico.
4
句意：无论怎样，它们总是能够完成约4000公里的南行旅程，成功到达加利福尼亚州或墨西哥。
managed to find
management n. 管理
manager n. 经理
2. find one's way: (因自然或环境的力量)来到某处；流入、进入；找到解决办法；
推开人群挤过去（=push one's way）；
找到路（反义词为：lose one's way）。
例: 那条河流入大海。
The river ___________ to the sea.
Somehow they managed to travel around 4,000 kilometers south and find their way to California or Mexico.
4
句意：无论怎样，它们总是能够完成约4000公里的南行旅程，成功到达加利福尼亚州或墨西哥。
finds its way
1. determine: v.决定
determine/decide to do 决定做某事
determined adj. 下定决心的，坚定的
be determined to do 决定做某事
determination n. 决心、果断
他并不比她有更大的权力来决定他们的钱该怎么花。
He has no greater right than her to __________ how their money should be spent.
These two pieces of information--- the time of day and the point where the sun is in the sky ---allows the butterfly to determine the way to go.
5
句意：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，最终成功抵达过冬的地点。
determine
2. allow sb to do sth. 允许某人做某事
allow doing sth. 允许做某事
After some hesitation, he agreed to allow me
to take the course.
稍稍犹豫之后，他同意让我修这门课。
We don’t allow smoking here.
我们这里不允许抽烟。
These two pieces of information--- the time of day and the point where the sun is in the sky ---allows the butterfly to determine the way to go.
5
The solution to the mystery of the monarch’s
amazing ability comes at a time when it is in
serious trouble. para.4
“……的方法”相关表达
the solution to (doing) sth.
the way to do sth./the way of doing sth.
means of doing sth.
method(s) of doing sth.
an/the approach to (doing) sth.
amazed adj.
be amazed at/by
be amazed to do sth.
amazement n.
to one’s amazement
in amazement
常接后接介词to的名词
key, answer, reply, attitude, entrance, exit, visit ...
6
crash: v. 狂跌，暴跌 vi.& vt.(车)碰撞；(飞机)坠毁；（计算机）瘫痪，死机
crash into 撞到……上
crash to pieces 撞成碎片
a plane crash 飞机失事（n. 坠毁）
例：如果整个欧洲人口锐减，那么出生的婴儿就很少。
If the population _____ across Europe, we will have fewer babies.
Its population has crashed by as much as 90% in the last few years.
7
句意：其数量在近年内减少了百分之九十之多。
crash
【句法分析】这四个句子都含有定语从句。在第一句中，when 是关系副词，代替先行词a time； 第二句中，why 是关系副词，代替先行词the main reason； 第三句中，where 是关系副词，代替the places； 第四句中，that 是关系代词，第一个指代chemicals, 第二个指代the plants。
The solution to the mystery of the monarch's amazing ability comes at a time when it is in serious trouble.
Sadly, human activity is the main reason why the number of monarch butterflies is falling.
In many of the places where the butterfly can be found, people are destroying the natural environment.
They cut down trees and use chemicals that kill the plants that monarch caterpillars eat.
8
【应用示例】
1. I still remember the time when I first became a college student.
我还仍然能记得我第一次成为大学生的时候。
2. This is the place where we met ten years ago.
这是我们十年前见面的地方。
3. This is the reason why he suddenly disappeared.
这就是他突然消失的原因。
4. Where is the book that I bought yesterday
我昨天买的书哪里去了？
【小试牛刀】
I’d like to live in a town ______ there are not too many cars.
Winter is the season ________ many animals sleep.
I can’t think ______ anyone would do that.
It was so quiet in the mountains _________ the bus stopped.
She told me about a place ________ there are thousands of butterflies.
I wish I knew _______ I failed my exams.
where
when
why
when
where
why
awareness:.n. 意识，认识
aware adj. 知道的,注意到的,觉察的
be (un)aware of （不）知道；了解
例：重要的是学生懂得如何使用互联网。
It is important that students develop an
__________ of how the Internet can be used.
The research on the monarch's behaviour has however led to a greater awareness of this creature.
10
句意：不过，对黑脉金斑蝶行为的研究也使得人们对这种生物有了更多的了解。
awareness
lead to= result in; contribute to; cause; bring about 导致
例：联合国表示，人类活动是造成这一现象的主要原因。
_____________ is the main reason for this, the United Nations (UN) said.
气候变化是世界气候模式的长期变化，主要是由人类活动造成的。
Climate change is the long-term changes in the world's weather patterns that are mostly caused by ____________.
Sadly,human activity is the main reason why the number of monarch butterflies is falling.
11
句意：不幸的是，人类活动是造成其数量下降的主要原因。
Human activity
human activity人类活动：指人类在日常生活中进行的各种行为和活动。
human activity
例：他们要求每砍伐一棵树就要补栽两棵树。《牛津词典》
They ordered that for every tree __________ two more be planted.
他少喝咖啡，少抽烟，饮食均衡。《柯林斯英汉双解大词典》
He _________on coffee and cigarettes, and ate a balanced diet.
They cut down trees and use chemicals that kill the plants that monarch caterpillars eat.
12
句意：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。
cut down
cut down(将树木或其他物体)砍倒;减少(数量或程度)
cut down
例：知道得越多，越会体会到自己知道得越少。
________ learned a man is, ________ you will
realize how little you know.
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.
13
句意：我们对这种迷人的生物了解越多，它们在自然界中得以长久生存并保持其位置的可能性就越大。
1. the more..., the more...是固定搭配，“越……，就越……”。
The more
the more
①The more we know about this lovely creature,
②the greater the chance it will survive and keep its place in the natural world for a long time to come.
①the+比较级+主语+谓语..., ②the+比较级+主语+谓语... 越……就越……
从属分句(条件状语从句)
一般现在时
主句(结果)
一般将来时
1.①②哪个是主句,哪个是从属分句？
2.①②的时态有区别吗？
①Sometimes study is a long and lonely journey. However, if we are determined and take some measures to release(释放) our negative feelings, our study will become better and better.
② Thanks to his teacher's help, he is getting more and more interested in Maths.
① “比较级+and+比较级”越来越...(单/部分双音节词)
② “more and more+多音节形容词原级”
与这类结构搭配的常用动词有grow, get, become等。
例：很少有人没有水能活过一周。《柯林斯英汉双解大词典》
Few can ________ more than a week without water.
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.
13
2. survive v. 活下来；幸存
survive sth. 在...中活下来（常接earthquake,flood）
survive the war 在战争中幸存
survive an earthquake 在地震中劫后余生
survive the fire 在火灾中幸免于难
survive on ... 靠...生存下来
survive sb. by ... years 比某人多活...年
survive from... 从...存活下来,流传下来
survival n.幸存；残存物
survivor n.生还者；残存者；幸存者
survive
例：他需要那笔钱来维持生活。《柯林斯英汉双解大词典》
He needs that amount of money to ________.
大多数女性比她们的配偶活得长。《柯林斯英汉双解大词典》
Most women will __________ their spouses.
大熊猫如何靠竹子存活？
How do Giant Pandas ____________ bamboo
13
survive
survive
survive on
2. survive v. 活下来；幸存
survive sth. 在...中活下来（常接earthquake,flood）
survive the war 在战争中幸存
survive an earthquake 在地震中劫后余生
survive the fire 在火灾中幸免于难
survive on ... 靠...生存下来
survive sb. by ... years 比某人多活...年
survive from... 从...存活下来,流传下来
survival n.幸存；残存物
survivor n.生还者；残存者；幸存者
This explosion led to great loss. 22 miners were trapped in the mine. The rescuers went all out to save them. But eventually, only 11
(survive) who _________(survive) the explosion. Many people figured their __________(survive) was a real wonder. Unfortunately, 11 miners died in this accident.
survivors
survived
survival
1. The Chinese writing system has survived Qin dynasty.
2. She survived her husband 40 years.
from
by
[ k spl n]
explode v.
练一练
例：如果你先上船，给我留个位置。
__________ for me if you reach the boat first.
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.
13
句意：我们对这种迷人的生物了解越多，它们在自然界中得以长久生存并保持其位置的可能性就越大。
Keep a place
3. keep one's place 占据位置
Sentence Analysis
5
UNIT
The Monarch’s Journey
1. A team of scientists led by Professor Eli Shlizerman at the University of Washington has now found the answer.
华盛顿大学伊莱·席里哲曼教授领导的科学家研究小组现在已经找到了答案。
led by …是一个非谓语动词（过去分词短语），充当scientists的后置定语。
Tell Mary that there is someone _______ (wait) for her at the door.
There is a dog ______ (tie) to a fence outside the house.
________ (catch) the early train, you’ll have to get up early.
People are talking about the new play _________ (put on) in two weeks.
______ (be) a nurse, she knew how to take care of a patient.
waiting
tied
To catch
to put on
Being
2. They cut down trees and use chemicals that kill the plants that monarch caterpillars eat.
他们砍伐树木，使用能杀死黑脉金斑蝶幼虫食用的植物的化学药剂。
这句话包括两个关系代词that引导的定语从句，第一个that在从句中作主语，第二个that在从句中作宾语，可以省略。
①Do you know the lady _________ our English teacher is talking to now
②We are going to learn some Chinese poems _________ were written in the Tang Dynasty.
③When facing hardship, only those ______ are confident will achieve success.
that/whom
that/which
who
④They planted some trees __________ didn’t need much water.
⑤We’re collecting money for those ________ homes were destroyed by the earthquake.
⑥Last week Mary wore the dress _________ I gave to her.
⑦I’d like a room ________ window look out over the sea.
⑧She wants to visit the village _________ her mother likes best.
⑨The old man likes reading the newspaper _________ contains important information.
⑩I have a friend __________ likes listening to classic music.
that/which
whose
that/which
whose
that/which
that/which
that/who
3. The more we know about this lovely creature, the greater chance it will survive and keep its place in the natural world for a long time to come.
the + 比较级…, the + 比较级… 表示越……,越……
我们对这种可爱的生物了解得越多，它生存的机会以及在未来很长一段时间内保持它在自然界中的地位就越大。
________ (much) you practice, ________ (good) you will speak English.
__________ (happy) you are, _______ (many) friends you will make.
The more
the better
The happier
the more
宾语从句
However, until recently no one knew how they did this.
They have found out that the monarch is able to tell the time of the day.
People have been working together to record its migration and make sure that there are enough plants for it to feed on.
1. migrate
2. in search of
3.measure
4. that
5. manage to do sth.
6. find one's way
7. determine to do
8.allow sb to do sth.
8. the solution to (doing) sth.
9. crash
10.lead to
11. a greater awareness of
12. cut down trees
13. human tivity
14. the more..., the more...
15.keep one's place
v. 迁徙
v. 测量；指（尺寸、长短、数量等）量度为
指代前面提到的内容，可以指代可数名词单数或者不可数名词
设法做某事
来到某处；找到解决办法；找到路
决定做某事
允许某人做某事
（做）某事的解决方法（方案）
v. 狂跌，暴跌 vi.& vt.(车)碰撞
导致
搜寻，寻找
复习回顾
对……有了更多的了解
越……，就越……
占据位置
砍倒树木
人类活动
1.Recite the main phrases we have learned.
2.Write a short passage to retell the story within 150 words.
Homework