16. ________careful when you cross the road.

A. Do　　 B. Do be　　 C. Is　　　 D. Are

答：B。助动词do接动词原形表示强调语气。如：

-Tom, do you still remember me after so many years?

-Yes, 1 do remember you.

Do come, please. 千万来呀。

15. Do it well if you do it_____.

A. in all　 　B. at all　 　C. after all　 　D. for all

答：B。at all 根本(常用于否定句和条件从句以加强语气)

14. What ________ do you mean?

A. in earth　　 　B. on earth　

C. at the earth　 　　D. in world

答：B。oncarth表示强调，用于疑问句，否定词或最高级后强谓语气，意为“究竟，到底，全然”，也可以说in the world。如：

Where in the world did you go? 你到底哪里去了?

What on earth is the matter there?那里究竟发生了什么事?

Where on earth can he be? 他到底在哪儿呢?

No force on earth can hold back the wheel of history. 没有任何力量能阻止历史车轮的前进。

That’s the funniest thing on earth. 那是最滑稽的事情了。

13. Was it during the summer vacation ______ he went to Shanghai?

A. that　　 B. hen　　 C. where　 D. which

答：A。强调时间状语时，不能用when，应用that。

12. It was simply for that reason ______I wouldn’t tell him the truth.

A. why　　　 B. that　　 C. which　 D. so

答：B。此题为强词句，被强调部分是原因 for that reason.

11. It is I who _______going to see the film.

A. is　　 B. are　　 C. am　　　 D. be

答：C。强调句型的主谓一致：谓语动词与被强调部分一致。

10. It__________ Tom and Mary who want to go swimming.

A. is　 B. are　　　 C. be　　　 D. being

答：A．It为强调句中的主语，Tom and Mary为被强调部分。

9. -How many people was it that got injured in the traffic accident?

-________four.

A. It was　　　　 B. There were　

C. There is　　　 D. It were

A．此题考查的是强调句型的特殊疑问句形式，被强调部分是特殊疑问词bow many people，故选A项．相当于It was four people who got injured in the traffic acci-dent 。

8. Was it in the room __________ he once lived __________ the meeting was held?

A. where, that　　　　　 B. where, where

C. that, where　　　　　 D. that, that

答：A．此题为强调句式，where引导的是定浯从句。

7. ________ was in 1979 - I graduated from the university.

A. That, that　　　　　 B. lt, that

C. That, when　　 　　　D. It, when

答：B．此句意为“我是在1979年大学毕业的。”