�、�.單項填空

　　1.—I didn't go to work yesterday because my car broke down.

　　—You ________ mine. I wasn't using it then.

　　A.might borrow

　　B.should borrow

　　C.must have borrowed

　　D.could have borrowed

　　答案：D　考查情態(tài)動詞+have done。句意：——由于我的車壞了，昨天我沒有去上班�！�—你本來能夠用我的車，當(dāng)時我并不用車。事情發(fā)生在過去，could have done本來能夠做……，暗含實際上沒有做。must have done一定做了某事。結(jié)合句意選D。

　　2.Sometimes his present job________ be boring, and he ________ work for long hours a day.

　　A.can; has to B.may; can

　　C.has to; may D.ought to; must

　　答案：A　句意：有時他現(xiàn)在的工作有可能很沒趣，并且他一天中還必須工作很長時間。can表示事情一時的可能性;have to必須，不得不。

　　3.We are given a special holiday, so we ________ go to work tomorrow.

　　A.can't B.mustn't

　　C.needn't D.shouldn't

　　答案：C　句意：我們有個特別的假期，所以我們明天不必去上班。can't不可能;mustn't絕不可以;needn't不必;shouldn't不應(yīng)該。結(jié)合句意選C。

　　4.(2014·銀川高一檢測)—Sorry, Professor Smith. I didn't finish the paper yesterday.

　　—Oh, you ________ have done it as yesterday was the deadline.

　　A.must B.mustn't

　　C.should D.shouldn't

　　答案：C　答語句意：哦，你本該做完的，因為昨天就是最后期限。此處用should have done表示本該做某事而實際上未做。

　　5.—What do you think we can do for our aged parents?

　　—You ________ do anything except to be with them and be yourself.

　　A.don't have to B.oughtn't to

　　C.mustn't D.can't

　　答案：A　句意：——你認(rèn)為我們能為我們年老的父母做什么?——除了陪伴他們及順其自然你不必做任何事。don't have to不必;oughtn't to不應(yīng)該;mustn't絕不可以;can't不可能。結(jié)合句意選A。

　　6.(2014·長春高一檢測)—I didn't see her last night at the party.

　　—You ________. But you came too late.

　　A.could have B.can't have

　　C.must have D.ought have

　　答案：A　句意：——我昨天晚上在聚會上沒見到她�！�—你本能見到她的。但是你來得太晚了。此題考查could have done，過去分詞已省去。could have done表示“過去本來可以做某事，但實際上沒有做”。

　　7.—Must I return the book a week later?

　　—Oh, no.You ________.

　　A.oughtn't to B.can't

　　C.won't D.needn't

　　答案：D　句意：——我必須一周后還這本書嗎?——哦，不，不必。must的疑問句的否定回答用needn't或don't have to。

　　8.—She looks unhappy.________ anything have happened to her?

　　—I'm not sure, but I guess something ________ happened.

　　A.May;must have B.Can;may have

　　C.Must; may D.Should; might have

　　答案：B　句意：——她看起來不高興。她可能出了什么事嗎?——我不確定，但我想可能出了什么事。can have done可能做了某事，用于疑問句或否定句;may have done可能做了某事，表示把握較小的推測，用于肯定句。

　　9.(2013·遼寧高考)Harry is feeling uncomfortable.He ________ too much at the party last night.

　　A.could drink B.should drink

　　C.would have drunk D.must have drunk

　　答案：D　考查情態(tài)動詞的用法。句意：Harry感到不舒服。他一定是在昨晚的聚會上喝了太多的酒。由第一句中的“uncomfortable”及第二句中的時間狀語“l(fā)ast night”提示，此處強調(diào)對過去發(fā)生動作的推測。用must have done。