外研版（2019）必修 第一册 Unit5Into the wild Language points (Understanding ideas)精品课件(共29张PPT)

(共29张PPT)
V
Language points
Language points: Important words
1. seek (seek → sought → sought)
① vt & vi 寻找,寻求,谋求,请求
seek (for) sth. / sb. 寻找某物 / 某人
seek one’s fortune 外出寻找发财机会,闯世界
eg: If you want to seek for success, you must work hard.
Language points: Important words
② v 试图，设法
seek to do sth = try to do sth
试图做某事，设法做某事
eg: We are always seeking to improve productivity.
将下列句子补充完整。
Thousands of people squeezed into the building, ________ (seek) protection from the rain.
The answer to the question must _________ (seek) elsewhere.
We are seeking ____ the solutions to current problems.
Language points: Exercise
seeking
be sought
for
1)
2)
3)
Language points: Important words
2. measure
① vt & vi（长度）为；测量；衡量
measure... by... 用……来衡量……
be measured by / in 用……来衡量/计算
be measured
It’s generally acknowledged that education shouldn’t _______________ (measure) only by examination results.
eg:
Language points: Important words
② n 计量单位；措施；尺寸
take measures to do sth
采取措施做……
make sth to sb’s measure
照某人的尺寸做某物
eg:
Therefore, it’s high time we took measures to prevent water from being polluted.
The suit fits me well because it was made to my measure.
将下列句子补充完整。
Some villagers reported a huge snake, __________ (measure) over two meters long, was found dead in a nearby cave.
Language points: Exercise
measuring
“measure”作动词，表示“有……长 / 宽 / 高”时，为不及物动词，不用于被动和进行时态，若其短语作后置定语，要用现在分词形式。
Language points: Important words
3. determine vt & vi 确定，决定
determine to do sth 决心做某事 (表动作)
be determined to do sth 决心做某事 (表心理状态)
determine sb to do sth 使某人决心做某事
拓展: determination n 决心，决定
He determined to get ahead of the others in studies.
eg:
将下列句子补充完整。
___________(determine) to give up smoking, he threw away his remaining cigarettes.
Language points: Exercise
Determined
过去分词作状语时，通常放在句首，并且用逗号与主句隔开。
Language points: Important words
4. survive vi 幸存，生存下来，比……活得长
vt 经历……之后还存在
survive sb by… 比某人活的长……
survive on sth 靠某物而生存下来
eg: She survivd her husband by ten years.
拓展：survival n 幸存者，残存物
单句改错
Language points: Exercise
He felt lucky to have survived from the war.
“survive” 表示“从地震、火灾、事故等中幸存下来”时，为及物动词，不可接介词in或from。
1. at certain times _____________________
2. in search of _____________________
3. millions of _____________________
4. manage to do sth _____________________
5. find one’s way to _____________________
6. find out _____________________
7. the solution to... _____________________
在某些时候
寻找，搜寻
数百万
想法设法做成某事
找到去……的路
发现，查明真相
Language points: Important lexical chunks
……的解决方法
8. in trouble _____________________
9. in the last few years _____________________ 10. the number of... _____________________
11. cut down _____________________
12. lead to _____________________
13. feed on _____________________
处于困境中
在过去几年里
……的数量
砍伐
导致
以……为食
Language points: Important lexical chunks
本句中的“that”是代词，用来特指前面所提到的名词。that作代词时，它所指代的名词可以是可数名词，也可以是不可数名词。这一用法可以让句子更加简洁，避免重复与累赘。
One of the most wonderful migrations in nature is that of the North American monarch butterfly.
Language points: Important sentences
北美黑脉金斑蝶的迁徙是自然界最棒的迁徙之一。
1.
将下列句子译为汉语。
1) I can’t lend my bike to you, for Tom is using it.
2) The population of China is larger than that of the UK.

我的自行车不能借给你，因为Tom在用。
(it指上文中的my bike，是同一个事物)
中国的人口数量比英国多。
(that指上文中的population，同类但不同物)
Language points: Exercise
句中的where the sun is in the sky为关系副词where引导的定语从句，修饰、限定先行词 the point，where在定语从句中用作地点状语。
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.
Language points: Important sentences
黑脉金斑蝶依靠着“一天中的时间点和太阳的位置”可以确定要去的方向。
2.
将下列含有“where”的句子译为汉语。
Eventually, it manages to reach the places where it will spend the winter.
Language points: Exercise
1)
最后，它成功到达了它要过冬的地方。
where引导定语从句，修饰the places
将下列含有“where”的句子译为汉语。
After the war, a new school was put up where there had once been a theatre.
Language points: Exercise
where引导的地点状语从句，相当于at the place
战后，一所新学校在曾经是剧院的地方建立起来。
2)
将下列含有“where”的句子译为汉语。
In many of the places where the butterfly can be found, people are destroying the natural environmnet.
在很多可以找到黑脉金斑蝶的地方，人们正在破坏自然环境。
Language points: Exercise
where引导定语从句，修饰the places
3)
The solution to the mystery of the monarch’s amazing ability comes at a time when it is in serious trouble.
Language points: Important sentences
黑脉金斑蝶惊人能力的神秘面纱在它处于极度困境时被揭开了。
句中的when it is in serious trouble为关系副词when引导的定语从句，修饰、限定先行词 a time，when在定语从句中用作时间状语。
3.
将下列含有“when”的句子译为汉语。
Language points: Exercise
If this works, there may come a time when the number of monarch butterflies increases once again.
1)
when 引导定语从句，修饰、限定先行词a time
如果这个做法起作用，黑脉金斑蝶的数量有望再次回升。
Language points: Exercise
将下列含有“when”的句子译为汉语。
当我到学校时，校园里还是静悄悄的，我决定先去探寻一番。
The campus was still quiet when I arrived, so I decided to explore a bit.
2)
when引导时间状语从句
Sadly, human activity is the main reason why the number of monarch butterflies is falling.
Language points: Important sentences
可悲的是，人类的活动是黑脉金斑蝶数量急剧下降的主要原因。
句中的why the number of monarch butterflies is falling为关系副词why引导的定语从句，修饰、限定先行词 reason，why可以换成for which，在定语从句中用作原因状语。
4.
将下列句子补充完整。
汤姆来迟到的原因是因为他生病了。
Tom came late for the meeting. That was ________ he was ill.
The reason ________ Tom came late was ________ he was ill.
because
why
that
Language points: Exercise
1)
2)
They cut down trees and use chemicals that kill the plants that monarch caterpillars eat.
Language points: Important sentences
他们砍伐树木并且使用杀死黑脉金斑蝶幼虫吃的植物的化学剂。
本句中的两个that 均引导定语从句。其中，第一个that指代chemicals，在从句中作主语；第二个that指代plants，在从句中作eat的宾语，这时that也可省略。
5.
People have been working together to record its migration and make sure that there are enough plants for it to feed on.
Language points: Important sentences
人们一直都在共同努力记录它的迁徙并且确保这儿有足够的植物供它采食。
本句中to record its migration作目的状语。that引导宾语从句，作make sure的宾语，这时that也可省略。
6.
Language points: Exercise
When asked why he went there, he said he was sent there ______ fora space flight.
A. training B. being trained
C. to have trained D. to be trained
1).
D
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.
Language points: Important sentences
我们对这种可爱的生物了解的越多，它存活下来并在未来很长一段时间里在自然界保有地位的几率也就越大。
句中的 the more…, the more… 是固定搭配，结构为：the + 比较级，the + 比较级，译为：越……，越……。
7.
将下列句子译为汉语。
The more I know him, the more I like him.
The harder you work, the better results you’ll get.

我越了解他就越喜欢他。
你学习越努力，成绩就会越好。
Language points: Exercise
1)
2)