高中英语必修四第三单元重点

高中英语必修四第三单元重点、难点Unit Three A taste of English humor

1、Why did you have to break into the same shop three times? 你为什么闯入同一个商店三次？

break into 用法归纳：

（1）强行进入；破门而入The thieves planned to break into a bank. 几个小偷计划抢银行。

If you lose your key, you have to break into the house. 如果你丢了钥匙，你就不得不破门而入。

（2）突然…；一下子

The man broke into laughter. 那个人突然大笑起来。The horse broke into a gallop. 马突然狂奔起来。

（3）打断I don’t like my talk broken into. 我不喜欢别人打断我的话。

It is impolite to break into other’s conversation. 打断别人的谈话是不礼貌的。

（4）动用；占用Buying that car broke into my deposit in the bank. 买那辆车动用了我在银行的存款。

Playing pc games breaks into much of my spare time. 玩电脑游戏占用了我大部分的空余时间。

联想扩展：break down 坏了；垮了；分解break forth突然break in 非法进入；打岔break off

中断；断绝break out 爆发break through 打通；突破break up 分散；驱散break with 和…断绝关系

break away from 脱离；和…断绝关系；改掉

即时活用：

1、He ____ from his family and settled down in America. A. broke away B. broke out C. broke up D. broke in 答案：A

2、The robbers had no trouble in ____ the bank, but when they came out ,the police were waiting for them.

A. breaking out

B. breaking into

C. breaking up

D. breaking away from 答案：B

2、Up to now nobody has been able to do this better than Charlie Chaplin.直到现在没有人做的比卓别林更好。

up to now = until now 直到现在

Up to now I haven’t mastered the skill of learning English. 到现在为止我还没有掌握学习英语的技巧。

We haven’t heard from him up to now. 到现在为止我们还没有收到他的来信。

特别提示：句子中如果有up to now或until now句子要用完成时。

联想扩展：完成时态的时间表达还有：

（1）for + 段时间多长时间以来

（2）before 以前

（3）since + 时间点自从什么时间

since +时间段+ago 自从多长时间以前

since +从句自从…

since then 从那以后

（4）recently ; lately; in recent +时间最近；最近多长时间

（5）so far; by far; up till now; by now 到现在为止

（6）by the end of… / by the time… 到…时间结尾

（7）in / during / for the past / last + 时间段在过去的多长时间里

2、He made people laugh at a time when they felt depressed, so they could feel more content with their lives.

在感到沮丧的时候，他可以使人们开怀大笑，于是人们就对自己的生活感到比较满意。

at a time 在…时候

At a time when I was a little boy, my mother used to tell me to be polite to others.

在我还是个小孩的时候，我妈妈就常告诉我对别人要有礼貌。

World economy crisis broke out at a time when I was out of work. 我下岗的时候世界经济危机爆发。

特别提示：at a time还可以表示“一次”。注意它和once的区别。at a time“一次”，表示许多次中的一次；而once“一次”，表示只有一次。

即时活用：

1、__ waste water was put into the rivers, and lakes which were badly polluted.

A. At one time

B. At a time

C. One time

D. A time

2、Never chase two rabbits _________. A. at one time B. one time C. at a time D. for a time