人教版高中英语必修2 Unit 4 Wildlife protection 重点短语句型

Unit 4 Wildlife protection 

重点短语

1. die out 灭绝；逐渐消失；灭亡

联想拓展

die for渴望；很想

die to do 渴望；很想

die away（尤指声音、光、风）逐渐消失; 停止

die down （兴奋、激动等情绪）渐弱；渐息；平息

die off （家族，种族等）相继死亡；（草木）枯死

die from/of 因……而死；通常由疾病、饥寒、情感原因造成的死亡用die of,除此之外的原因用die from。

Many species will soon die out if we don’t take action.

如果我们不采取行动，许多物种将很快灭绝。

Many old customs have died out.

许多旧的风俗已不复存在。

2. protect ...from ... 保护……免受……，后接较小的事情或危害。

联想拓展

protect ...against ...后接较大的事情，如：战争、灾害、重税、威胁等。

keep sb. from doing sth. prevent/stop sb.(from) doing sth. 阻止某人做某事

keep sb. doing sth. 使某人一直做某事

defend ...from/against 保卫……以抵御……

易混辨析：defend/protect/guard/preserve

defend 保卫；防护；防守（含有采取措施抵制进攻的意思）；protect 常含有提供安全的方式来驱开不适、伤害或进攻的意思；guard 含有看守的意思；preserve 指采取措施维护、保护、保存。

You must learn to protect yourself from the danger.

你必须学会保护自己，免遭危险。

She had to defend herself against the guard dog.

她不得不防备看门狗咬她。

A policeman was guarding the entrance to the embassy.

一位警察正守卫在大使馆出口处。

It is one of the duties of the police to preserve public order.警察的职责之一是维持公共秩序。

3. pay attention to 注意

联想拓展

bring sth. to one’s attention 使某事引起某人注意

call/draw one’s attention to sth. 使某人注意某事

draw/catch/attract one’s attention 引起某人的注意

fix/focus/concentrate one’s attention on sth.

集中注意力于某事物

You should pay attention to your spelling.

你要注意自己的拼写。

4. come into being 形成；产生（不可用于被动语态或进行时）

联想拓展

come into existence 形成；产生；开始存在

come into effect/force/operation开始生效；开始实施

come into use 开始被使用

come into power上台执政

come into fashion 开始流行

come into office 就职

come into action 开始行动

We do not know when this world came into being.

我们不知道世界是何时形成的。

重点句型

1. Why are they in danger of disappearing?

它们为什么处于灭绝的危险中？

常用结构：

in danger (of)  在危险中

be in danger of  有……的危险

be out of danger  脱离危险

The girl’s life was obviously in immediate danger.

很明显,这女孩的生命危在旦夕。

The sick man is in danger of death. 这位病人有死亡的危险。

The wounded policeman is now out of danger.

受伤的警察已脱离危险。

联想拓展

be a danger to sb./sth. 危险的人/因素

be dangerous for 对……有危险

endanger vt. 危害，危及

endangered adj. 有危险的；濒临灭绝的

2. They lived on the earth tens of millions of years ago, long before humans come into being.

千百万年前，恐龙就在地球上生活，比人类的出现要早得多。

long before ...在……之前很长一段时间

I knew the news that they were invited to the party, long before you told me.

早在你告诉我之前很久我就知道他们被邀请来参加晚会的消息了。