10.Tom‘s mother kept telling him that he should work harder, but ____didn’t help.

　A. he　　 B. which　　　 C. she　　 　D. it 11.____is a fact that English is being accepted as an international language.

A. There　　　　 B. This　　 C. That　　 D. It

6.Is ____necessary to complete the design before National Day? A. this　　　 B. that　　　 C. it　　　　　 D. he 7.I don't think ____possible to master a foreign language without much memory work. A. this　　 B. that　　 C. its　　 D. it　　 8.Does ____matter if he can't finish the job on time? A. this　　　 B. that　　 C. he　　　 D. it　 9.It was not ____she took off her dark glasses ____ ,I realized she was a famous film star.　　　　　

A. when; that　　　　　 B. until; that　　　 C. until; when　　　 D. when; then

4.Is ____ possible to fly to the moon in a spaceship? A. now　　　 B. man　　　　 C. that　　　　 D. it　 5.Was it during the Second World War ____he died? A. that　　　 B. while　　　 C. in which　　 D. then

1.It was at the gate ____ he told me the news. A. that　　　 B. what　　　 C. which　　　 D. when 2.Is ____necessary to tell his father everything　　

A. it　　　　 B. that　　　 C. what　　　　 D. he 3.Was it in this palace ____ the last emperor died? A. that　　　 B. in which　 C. in where　　 D. which

3. It looks (seems) as if．．．

　　 本句型中的as if引导一个状语从句，常译为“看起来好像……”。如果与事实不相符合，则用虚拟语气．

　 例1　 It looks as if he is ill (真的病了) .

　 例2　 It looks as if he were ill　 (没有生病) .

Exercises:

2. It is…when…

　　 本句型中的when引导的是一个时间状语从句，主句中的it指时间，表语由具体的时间充当。

1. It is…since…

　　 本句型主句中用时间作表语，一般用现在时或完成时，since引导的从句常用瞬间动词的一般过去时态。主句如用一般过去时，则从句用过去完成时。

II．强调句型

　　 It is+ 被强调部分+that/who…

　　 本句型中被强调部分可以是主语、宾语或状语。强调的主语如果是人，that可以由who换用。

III．其他句型　　

15. It is up to sb to do sth．

　　 本句型表示“谊由某人做……”。

14. It is (just) like sb to do sth．

　　 本句型为“某人(恰恰)是……样子”。用来表示赞扬或不满，若用否定式，则表示怀疑。

　 例：It's like him to leave the work to others．

　 他就是这样的一个人，把工作推给别人。