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高中英语必修二Unit4知识点

Unit 4 Wildlife protection

【短语归纳】：

1.die out灭亡；逐渐消失

2.in peace和平地；和睦地；安祥地

3.in danger (of) 在危险中；垂危

4.in relief 如释重负；松了口气

5.burst into laughter突然笑起来；大声笑了出来

6.protect...from保护……不受……(危害)

7.pay attention to注意https://www.wendangku.net/doc/be12540290.html,e into being形成；产生9.according to按照；根据……所说10.so that以致于；结果

【知识点总结】：

1.Their numbers may decrease.

decrease vi. & vt. 减少；（使）变小或变少

decrease to …减少至… decrease by…减少了…

e.g. By 1881, the population of Ireland had decreased to 5.2 million.

Student numbers have decreased by 500.

拓展：reduce to/reduce by减少到…/减少了…

increase to /increase by 增加到…/增加了…

2. As a result these endangered animals may even die out.

at the mercy of任由……摆布It is a mercy that... 真是万幸……

e.g. She begged the president to have mercy on her husband.

The poor cat is at the mercy of the naughty boy.

5.They allowed tourists to hunt only a certain number of animals if they paid the farmers. certain adj. 确定的；一定的；某一

(1)be certain of/ about sth.：对…有把握（=be sure of/about sth.）

be certain to do sth.：一定会做… to a certain extent：一定程度上

for certain=for sure无疑地；确定地make certain (that...)弄清楚；弄明白

It is certain that…：肯定，一定会….（不能说It is sure that…）

e.g. We are certain to have a good time at the party tonight.

It is certain that something is wrong with the machine

6.I'm protecting myself from mosquitoes.

protect...from...保护……不受……(危害)

protect...against保护……以防……(强调较大的事情，如敌人的入侵、天灾等)

keep＋宾语＋from doing

stop＋宾语＋(from) doing

prevent＋宾语＋(from) doing 阻止……做某事

注意：被动语态里from均不可省去，而在主动语态中，与stop/prevent搭配的from可以省略。

7.It contains a powerful drug which affects mosquitoes.

contain vt. 包含；容纳；克制(强烈的感情等)；抑制

contain oneself克制自己container n.容器；集装箱；货柜

易混辨异contain, include, including, included

1)contain意为“包含；容纳；里面装有”，侧重“整体内有”，在某一范围或

容器内能容纳某物。其宾语与主语常是同位关系，不用于进行时态。此外，contain还有“控制，克制”之意。

2)include意为“包含；计入；包括”，只能用于表示所包含之物中的一部分，其后的宾语往往是主语的一部分。

3)including可以作介词连接介词短语，放在所包括的东西之前。

4)included是过去分词性质的形容词，放在所包括的东西之后。

e.g. She was too angry to contain hersel

The hall can contain/hold/admit 3,000 people.

Many people like tennis, including me/me included.

8.affect vt.影响；感动；(疾病)侵袭

1)be greatly/deeply affected by 被……深深打动

be affected by heat/cold 中暑/着凉

be affected with high fever 发高烧

2)affection n. 喜爱；感情

3)effect n.作用；影响take effect生效have an effect on 对……产生影响

e.g. The disease is beginning to affect her eyesight.

9.You should pay more attention to the rainforest where I live and appreciate how the animals live together.

attention n.注意力；注意，留心

pay/give attention to注意attract/catch/draw/get one’s attention吸引某人的注意力

fix/focus one’s attention on集中注意力于devote one’s attention to专心于turn one’s attention to将注意力转向

e.g. The teacher told the student to pay attention to his spelling.

10.appreciate vt.欣赏；感激；意识到

appreciate＋n./pron./v-ing 欣赏/感激……

I would appreciate it if... 假如……我将不胜感激

appreciation n.欣赏；感激

e.g. I will appreciate it if you can give me some advice about TOEFL test.

[提醒] 当appreciate，hate，dislike，depend on等词后接宾语从句时，一般先加it，再接宾语从句。

11.What must be done if wildlife protection is to succeed?

succeed vi.成功；继承vt.接替；继任

1)succeed (in) doing sth.成功…succeed to sth.继承……

2)success n．[U]成功，成就；[C]成功的人或事物

successful adj.成功的successfully adv.成功地

e.g. If we team up with each other, we will succeed in overcoming the difficulties.

He had to succeed to the business when his father passed away.

12.Can they be employed to work in the park and not hurt the animals?

employ vt.雇用；利用(时间、精力等)

(1)employ sb. as... 雇用某人任……

employ sb. to do sth. 雇用某人做某事

be employed in (doing) sth. 忙于某事，从事于某事

(2)employer n.雇主employee n.雇员，受雇者employment n.职业，工作，使用

e.g. He has been employed in writing a new book these days.

13.They lived on the earth tens of millions of years ago, long before humans came into being and their future seemed secure at that time.

come into being 形成；产生

come into existence开始存在；形成，产生come into fashion 开始流行，风靡

come into effect 生效come into sight/view看得见come into office 就职come into power当权；执政come into use/service开始被使用

e.g. When did the club first come into being?

The new tax regulations came into effect last month.

14.They lived on the earth tens of millions of years ago, long before humans came into

being...

long before意为“很久以前”，常用于过去时或过去完成时的句子中作时间状语，before后边可以跟从句。

e.g. I had heard of him long before I came here.

They said they had known each other long before.

拓展：(1)before long相当于soon或a little later，意为“不久；不久以后”，常与将来时、过去时态连用，在句中作状语，不可以直接加从句。

e.g. I hope you'll be able to come to China again before long.

(2)It is/was not long before＋从句不久就……

It will be long before＋从句要过很久才……

It will not be long before＋从句过不了多久就……

e.g. It won't be long before he goes abroad.

三、重点语法

现在进行时的被动语态

当强调动作正在进行或现阶段正在进行，并且主语与谓语动词之间是动宾关系（被动关系），我们需要使用现在进行时的被动语态。

现在进行时被动语态构成为：am/is/are being done

练习： 1. The most delicious cake in the world ______ by Mum. Please wait an hour to enjoy it.

A. makes

B. is made

C. is going to make

D. is being made

2. I don't know what time it is now. My watch ______.

A. is repairing

B. has been repaired

C. is being repaired

D. has being repaired

解析：

1. D. cake与make之间是被动关系，从后面的"Please wait an hour to enjoy it."可知用现在进行时的被动语态。

2. C. 考查动词的时态和语态。由句意知My watch和repair之间是被动关系，且当前正在进行，故用现在进行时的

被动语态。

高中英语必修二Unit4 知识点讲解及答案

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