高中英语必修二第四单元重点

高中英语必修二第四单元重点、难点U n i t F o u r W i l d l i f e p r o t e c t i o n

1、As a result these endangered animals may even die out. 结果,这些濒危的动物将会灭绝。

die out 用法归纳：

（1）（火）熄灭The fire died out in the heavy rain. 大雨中火灭了。

（2）绝种About 50 species die out every day in the world. 世界上每天大约有50中物种灭绝。

联想扩展：

（1）die away 消逝；平息；静下来（多指声音）

The noise of the plane died away in the distance. 飞机的声音在远处消逝了。

（2）die down 平息；静下来The noisy city dies down at night. 嘈杂的城市晚上就静下来了。（3）die for / die to do sth. 迫切想做某事I am dying to buy a new car. 我很想买一辆新车。（4）die from 由于…而死；因…而死Many people die from accidents every day. 每天有很多人死于事故。

（5）die of 因（患）…而死His father died of cancer three years ago. 他父亲三年前死于癌症。（6）die off 一个个死去People with Aids will die off. 得艾滋病的人会一个个死去。

即时活用：

Most of the old customs here have ______ already. A. died away B. died out C. died down D. died off 答案：B

2、Daisy had always longed to help endangered species of wildlife. 黛西一直希望能帮助濒临灭绝的野生动物。

这里long为不及物动词，表示“渴望”，后跟动词不定式。

The old man is still longing to go to college. 那个老人还渴望上大学。Do you long to buy a new car? 你想买辆新车吗？

联想扩展：long for sth. 迫切希望得到

How I long for your comments on my new dress! 我多么希望得到你对我新衣服的评价！

联想扩展：

（1）long adj. 长；长久的；长时间的It will not take long before we meet again. 我们不多久就会再见面的。

（2）long adv. 长久；长期Houses built with mud will not last long. 用泥造的房子不能长期使用。

3、Daisy responded immediately. 黛西立刻回答。

respond vi. 回答；响应I waved to him but he didn’t respond. 我对他挥手，但他没反应。Unless we listen carefully, we can’t know how to respond. 除非我们认真听，否则我们就不知道怎么回答。

联想扩展：respond to 回答；响应；作出反应

Sometimes my students don’t respond to my questions. 有时候我的学生不回答我的问题。

Companies should respond to the customers demands at any time. 任何时候公司都应该对顾客的要求作出反应。

4、At that Daisy cried. 听到那些话黛西哭了。

at prep. 对于；由于At the news the two girls burst into tears. 听到那个消息两个女孩哭了。

We are happy at his returning to work. 他又回来工作我们很高兴。

联想扩展：at还可表示

（1）在…地点; 在…场合Please wait for me at the school gate. 在学校大门口等我。

Did you speak at the meeting? 你在会上发言了吗？

（2）在…时间It started to snow at mid-night last night. 昨晚午夜开始下雪。

I was a middle school student at that time. 那个时候我还是个中学生。

（3）表示动作的方向Don’t throw anything at the animals. 别向动物扔东西。

What are you laughing at? 你们在笑什么？

（4）在某方面Zhou Zhou is clever at conducting. 舟舟在指挥方面很聪明。

The boy is rather slow at language. 那个孩子学语言很慢。

（5）表示价格、速度、数量等The car is running at a low speed. 那辆车在慢速运行。

They buy vegetables from the farmers at a low price and sell them at a high price in cities.

他们从农民那里低价收购蔬菜然后在城里高价出售。

联想扩展：at a distance 在一定距离at a loss 不知所措at a time 一次at any rate 不管怎样at first 最初at first sight 乍一看at large 逍遥法外at least 至少at (the) most 之多at once 马上at present 目前at the same time 同时at times 有时at work 上班

5、Daisy turned around and found that she was being watched by an elephant. 黛西转过身发现一头大象正看着她。

turn around 转身The little boy turned around and ran to his mother. 小男孩转过身向妈妈跑去。

联想扩展：turn about 向后转turn against 背叛turn down 拒绝；把声音关小turn in 上交turn off 关上；离开turn on 打开turn out 结果是；原来是turn over 移交；翻转turn to 查阅；转向；向某人求助turn up 出现；开大声音

即时活用：

1、When you have trouble in learning English, you can ________ your English teacher for help.

A. turn up

B. turn to

C. turn down

D. turn on

2、We wanted to get home before dark, but it didn’t quite _____ as planned. A. make out B. turn out C. go on

D. come up

3、I can' t hear clearly. Please ____ the radio ____ a little. A. tum;on B. tum;off C. tum;down D. tum;up

4、Thirty people were expected, but only twenty - four ____. A. turned in B. turned up C. turned to D. turn up

5、–Is the radio bothering you? --- It certainly is. I’d like it _______off. A. turning B. to turn C. turned

D. turns

6、To ask someone for help is to turn ________him. A. to B. for C. on D. by

7、To reject an offer is to turn it _________. A. out B. over C. back D. down. 答案：

B B D D

C A D

6、Daisy turned around and found that she was being watched by an elephant.黛西转过身发现一头大象正看着她。

find vt. 发现用法归纳：

（1）+名词Have you found the truth of the matter? 你发现事情的真想了吗？

I found a note on my desk, who put it here? 我在桌子上发现了一张字条，谁放的？

（2）+从句Looking at his watch, he found that it was already ten. 看一下手表，他发现已经十点了。The teacher found that some students had his homework done by others. 老师发现有些学生让别人做作业。（3）find + O + OC

A. find + O + 形容词Do you find it easy to do in this way? 你发现没有，用这种方法做就很简单。

B. find + O + 现在分词Walking outside, I found him smoking in the yard. 走出去，我发现他在院子吸烟。