21.Japan is ________ the east of China. Taiwan is ____ the southeast of China.

　　A. in; in

　　B. to; in

　　C. on ; to

　　D. in; to

　　解析：选B. 日本位于中国东部(外面)用to, 台湾位于中国东部(内部)用in。

　　22.The postman shouted, “ Mr Green, here is a letter ________ you.”

　　A. to

　　B. from

　　C. for

　　D. of

　　解析：选C. 介词的考查。句意：Mr Green, 这是你的信。学生容易误选A。

　　23.He hasn’t heard from his friend __________ last month.

　　A. since

　　B. by the end of

　　C. for

　　D. until

　　解析： A. 此题学生容易受思维定势not… until…的影响误选D。since用于现在完成时，如果此题是一般过去时就选择D。

　　24.—Jimmy lost his key yesterday.

　　—________? It’s his third time in just one month.

　　A. Has he

　　B. Did he

　　C. Was he

　　D. Does he

　　解析：B. 根据上一句一般过去时可以判断。

　　25.You’ve passed the exam. I’m happy ______ you.

　　A. on

　　B. at

　　C. in

　　D. for

　　解析：选D. 句意：你考试及格了，我为你高兴。

　　26. I wonder ________ they finished so many different jobs in such a short time.

　　A. why

　　B. how

　　C. when

　　D. where

　　解析：选B. 句意：我想知道他在如此短的时间内是怎样完成这么多不同工作的。

　　27. —Ought I to go right now?

　　—_________.

　　A. That’s very bad.

　　B. Yes, you go ought to

　　C. Yes, you ought

　　D. No, you ought not to

　　解析：选D. 句子的肯定回答为：Yes, you ought to. 否定回答为：No, you ought not to.

　　28. I don’t know when he ________. When he _______ here, I’ll call you in a minute.

　　A. will come; will arrive

　　B. comes; arrices

　　C. will come; arrives

　　D. comes; will arrive

　　解析：选C. 第一句是宾语从句根据语境用一般将来时，第二句是时间状语从句，由于主句是一般将来时，那么从句要用一般现在时来代替。

　　29. He turned ________ the radio a little because his father was asleep.

　　A. on

　　B. down

　　C. up

　　D. off

　　解析：选B. 此题学生会误选D. 但后面有个副词短语a little, 故选择B, 意为：把收音机调小一点，父亲在睡觉。如果去掉a little则选择D。

　　30. I don’t know the homework _______ today.

　　A. on

　　B. in

　　C. of

　　D. for

　　解析：选D. 句意：我不知道今天的家庭作业。

　　31. —Would you like some coffee?

　　—Yes, and please get me some milk. I prefer coffee _____ milk.

　　A. with

　　B. to

　　C. of

　　D. on

　　解析：A. 此题学生极易受思维定势prefer… to… 的影响误选B。句意：我喜欢加牛奶的咖啡。

　　32. They each ___ a book. Each of them ___ from China.

　　A. has;are

　　B. have; is

　　C. are having;are

　　D. is having;is

　　解析：选B. 此题考查主谓一致。此题应该用一般现在时，排除C, D. each作同位语谓语动词与主语保持一致，each做主语谓语动词用单数。

　　33. — __________ you ________ your book to the library?

　　— Yes. I returned it yesterday.

　　A. Did, return

　　B. Have, returned

　　C. Will, return

　　D. Do, return

　　解析：选择B. 此题容易误选A. 从句意看：你把书归还图书馆了吗?是的。我昨天归还了。对现在的影响是“书不在这儿了”。

　　34. Though it’s cloudy now, it _________ get sunny later.

　　A. can

　　B. may

　　C. must

　　D. need

　　解析：选B. 表示可能性用may. Can主要表示两种用法，一种是表示能力，另外一种是请求许可; must必须;need需要。

　　35.It is in the library, you _______ talk loudly.

　　A. may not

　　B. can’t

　　C. needn’t

　　D. mustn’t

　　解析：选D。mustn’t表示禁止，不准。根据句意：在图书馆，禁止大声说话。

　　36. If anyone wants to say something in class, you ________ put up your hands first.

　　A. must

　　B. may

　　C. should

　　D. can

　　解析：选C。句意：课堂上如果你想说点东西，你应该举手。

　　37.The pen _________ him ten yuan.

　　A. paid

　　B. cost

　　C. took

　　D. spent

　　解析：选B. 动词辨析。主语是物用cost. Pay, spend的主语是人。Take的形式主语是it。

　　38. The train _________ for twenty minutes.

　　A. left

　　B. has left

　　C. is leaving

　　D. has been away

　　解析：选D. 此题形式会误选B. 但瞬间性动词不能与一段时间for twenty minutes连用。

　　39. — How many books _____ they ________?

　　— Five. But they haven’t finished reading even one.

　　A. did…borrow

　　B. had…borrowed

　　C . will…borrow

　　D. do…borrow

　　解析：选A。此题考查时态，根据语境：他们一本也没有读完。可知他们以前借了5本书。强调过去。

　　40. He _________ his bike，so he has to walk there.

　　A. lost

　　B. has lost

　　C. had lost

　　D. loses

　　解析：选B. 此题考查时态，根据语境他丢了自行车，对现在造成的影响是不得不走路。