16. Some of you may have finished unit one. _____ , you can go on to unit two.

　　A. If you may B. If you do C. If not D. If so

　　〖答案〗D

　　〖考点〗省略句的用法。

　　〖解析〗If so = If you have done that / so你们中的一些人可能已经完成第一单元, 如果是这样的话, 你们可以继续第二单元。

　　17. The computer was used in teaching. As a result, not only ________, but students became more interested in the lessons.

　　A. saved was teachers’ energy B. was teachers’ energy saved

　　C. teachers’ energy was saved D. was saved teachers’ energy

　　〖答案〗B

　　〖考点〗考查倒装

　　〖解析〗句意为：计算机应用于教学。结果, 不仅教师节省能量, 而且学生对课程更感兴趣。考查 “not only...but also...”, 放在句首作状语, 句子则进行部分倒装。前一部分倒装, 后一部分不倒装。

　　18. So sudden ________that the enemy had no time to escape.

　　A. did the attack B. the attack did C. was the attack D. the attack was

　　〖答案〗C

　　〖考点〗考查倒装

　　〖解析〗so ..that.., such ..that..的句子结构中, 若so, such 和与其所修饰的词置于句首, 实行部分倒装, 又sudden是形容词, 作表语, 所以选C。

　　19. He must be helping the old man to water the flowers, ?

　　A. is he B. isn’t he C. must he D. mustn’t he

　　〖答案〗B

　　〖考点〗考查反意疑问句。

　　〖解析〗陈述句中的谓语中虽有情态动词must, 但此处must表示对正在进行的动作进行推测, 将其不看作情态动词。而must后有助动词be, 故反意疑问句根据助动词be来构成, 选B。

　　20. Little about her own safety, though she was in great danger herself.

　　A. did Rose care B. Rose did care C. Rose does care D. does Rose care

　　〖答案〗A

　　〖考点〗考查倒装

　　〖解析〗little是具有否定意义的词, 位于句首时句子用部分倒装句, 选A。

　　21. —I wonder ________ you’ll water this kind of flower.

　　—Every other day.

　　A. how often B. how long C. how soon D. how much

　　〖答案〗A

　　〖考点〗相似疑问词的区别。

　　〖解析〗根据答语Every other day可知对方问的是多久浇一次这种花。how often问频率, 符合题意。

　　22. Not until I came home last night ________ to bed.

　　A. Mum did go B. did Mum go C. went Mum D. Mum went

　　〖答案〗B

　　〖考点〗倒装语序的用法。

　　〖解析〗not until 位于句首时要用半倒装的句型, 把助动词did提到主语Mum的前面。所以答案为：B

　　23. Unsatisfied _________with the payment, he took the job just to get some work experience.

　　A. though was he B. though he was C. he was though D. was he though

　　〖答案〗B

　　〖考点〗倒装语序的用法。

　　〖解析〗as, though等词引导让步状语从句时, 常将表语提前置于句首, 其后跟连词和正常的主谓语序。

　　24. It is often that human beings are naturally equipped to speak.

　　A. said B. to say C. saying D. being said

　　〖答案〗A

　　〖考点〗固定句型。

　　〖解析〗固定句型(it is +Ved +that从句)。

　　25. —What’s the matter with Della?

　　—Well, her parents wouldn’t allow her to go to the party, but she still _ _

　　A. hopes to B. hopes so C. hopes not D. hopes for

　　〖答案〗A

　　〖考点〗固定搭配hope to do sth.

　　〖解析〗在不定式作简略回答时, 常常将不定式to之后的内容省略。

　　26. Sally’s never seen a play in the Shanghai Grand Theatre, ______?

　　〖答案〗B

　　〖考点〗此题考查反意问句。

　　〖解析〗Sally’s的完全形式是Sally has, 判断反意问句部分用助动词has;never表示否定, 因此反意问句部分用肯定。答案B。

　　27. It’s the first time that he has been to Australia, ?

　　A isn’t he B hasn’t he C isn’t it D hasn’t it

　　〖答案〗C

　　〖考点〗此题考查反意问句。

　　〖解析〗陈述部分是主从复合句时, 其反意疑问部分的构成常以主句为判断依据。答案C。

　　28. It was in New Zealand Elizabeth first met Mr.Smith.

　　A.that B.how C.which D.when

　　〖答案〗A

　　〖考点〗此题考查强调句

　　〖解析〗句意为：正是在新西兰伊丽莎白第一次见到史密斯先生。It+be+被强调成分+that句型为强调句。

　　29. It was along the Mississippi River _______ Mark Twain spent much of his childhood.

　　A. how B. which C. that D. where

　　〖答案〗C

　　〖考点〗此题考查强调句

　　〖解析〗此处构成It was…that…强调句式, 句中强调了介词短语along the Mississippi River。

　　30. It was announced that only when the fire was under control to return to their homes.

　　A. the residents would be permitted B. had the residents been permitted

　　C. would the residents be permitted D. the residents had been permitted

　　〖答案〗C

　　〖考点〗此题考查部分倒装结构

　　〖解析〗句意为：据宣布, 只有在火势被控制住的时候居民们才被允许回到家中。that从句中only引导的时间状语从句位于句首, that从句需用部分倒装结构。