练习题1. （2011 潍坊第一次模拟）一Whydidn t Alex attend the party yesterday evening? He not have wanted to see me.A. shouldB. mightC. couldD. would解析：考查情态动词。语意：他可能不想来见我。might have done表示对过去一种不太肯定的推测。答案： B2. （2011 青岛市模拟）一May I tell this to my close friend?-No, you.Never let anybody else know about it.A. needn tB. shouldn tC. mustn tD. can t解析： 由“决不可以让其他任何人知道”可知选C, mustn t表示不允许，不可以，语气强烈。答案： C3. （2011 杭州市教学检测 ）一Mum I am feeling tired and sleepy now.You so late last night.A. couldn t have stayed upB. mustn t have stayed upC. shouldn t have stayed upD. needn t have stayed up解析：考查情态动词。shouldn t have stayed up本来不该熬夜。couldn t havestayed up不可能熬夜；needn t have stayed up本没有必要熬夜。根据语意可知本句是母亲责备孩子昨晚熬夜了，故选 C项。答案： C4. （2011 南通一模）Shopping online can save muchtime as you go to a shopor walk around crowded shopping centers.A. don t have toB. oughtn t toC. won tD. mustn t解析：本题考查情态动词。句意为：由于不必去商店或者拥挤的购物中心，网上购物能够节省大量时间。根据句意，应选Ao答案： A5. （2011 青岛市联合模拟 ）Everyone in my class passed the exam. Oh, really ? It difficult.A. can t have beenB. needn t have beenC. must beD. mightn t be解析：考查情态动词。对过去进行推测，表示“一定不应使用can t have done 。语意：一一我们班上每个人都通过了考试。一一哦，真的吗？那题目一定不难。答案： A6. （2011 济宁市第一次联考 ）一Did you punish him for losing your digital camera?Yes, but I don t think I.A. should do thatB. need to have done soC. ought have done thatD. should have done so解析：考查情态动词的用法。句意为：语一他把你的数码相机弄丢了，你处罚他了吗？是的。但我现在认为当时我不应该这样做。shouldn t have done sth. 意为“（过去） 不应该做某事，但实际上已做了“。此处否定发生了转移。答案： D7. （2011 合肥第二次教学检测 ）It be really cold in Novermber in Hefeithough we usually have warm and sunny days.A. shouldB. willC. mustD. can解析：考查情态动词。can可表示常有的行为和情况，意为“有时会，时而可能”。句意为：尽管合肥十一月的时候常常很暖和，但有时候可能会很冷。根据语意选D项。答案：D8. （2011 陕西西安分科质检）The well-dressed la dy was caught stealing in the fashion shop.Strangely enough , she have done such a thing.A. wouldB. mustC. shouldD. might解析：根据题干中的 Strangely enough可知，这里应该用 should ,表示惊讶，可译为“竟然”。答案： C9. （2011 浙江嘉兴摸底）一Mary s score on the test is the highest in her class. Really ? She have studied very hard.A. mayB. ought toC. mustD. should解析： may have done 可能已经； ought to have done 本应该； must havedone一定曾 ,一定已经； should have done 本应该。句意为：玛丽的考试成绩是全班最高的。一一真的吗？她一定很努力了。答案： C10. (2010 安徽皖南八校第二次联考 station? His plane took off 2 hours agoA. shouldC. must解析：should的意思是“应该会，答案： A11. (2011 黑龙江哈尔滨质检)Don dangerous at times.A. shallC. can) When shall we meet your cousin at the,and it reach at 5 pm.B. couldD. can可能”，在这里表示对将来的推测，预期会。t play with the dog , Jack, for it beB. shouldD. must解析： 句意为：杰克，不要逗狗玩，因为狗有时可能是危险的。can在此表示理论上的可能性，其他三项则无此意，故选 C项。答案： C12. （2011 福建龙岩质检一）Attention , please.Whoever can answer one of my questions receive a prize , “ the teacher said in class.A. mightB. shallC. shouldD. would解析：shall用于第二和第三人称时， 可以表示警告、命令、允诺、威胁等语气；might 表示可能性很小；should表示“应该（义务性） ；would表示意志（意愿）。这里选B项表 ZNtLmr o答案： B13. （2011 浙江温州十校联合体模拟）一Where is Lucy? I can t say where she is , but she have gone to meet her classmates ,for they want to go to Sichuan to work as volunteers.A. canB. shouldC. mustD. may解析：这里表示对过去状况的推断，用“情态动词+have done”。从前面的“我不确定她在哪里“可知，用 may have done ,表示“过去可能已经做了”（不确定 ）。musthave done表示“过去一定做了”（非常确定）；can have done用在否定句和疑问句中，should have done 表示“过去本该做（实际却没做）”。答案： D14. (2010 吉林长春毕业班第一次调研 in the party. He.He is a man of his word.A. could have leftC. can t come解析： 根据 He is a man of his word.) Has Tim started? He said he would joinB. must have leftD. won t be coming可知他是一个守信的人，因此推测他肯定已经启程了。句意为：一一Tim启程了吗？他说他要参加聚会。一一他一定已经启程了，他是一个守信的人。must have done “一定干了某事”，故B项正确。答案： B15. （2011 安徽合肥质检 ）一Mum would you please buy me an MP5 player?,you have one as a If you can help do the dishes the whole vacation reward.A. mustB. needC. wouldD. shall解析： shall用于第一、三人称问句中表示征询对方意见；shall用于第二、三人称的肯定句中，表示“警告、许诺、命令、威胁”等语气。答句句意：如果你整个假期能够帮 助洗盘子的话，就会得到一个MP5乍为回报。shall表示允诺。答案： D15. （2011 安徽芜湖调研 ）If human beings had been a bit less greedy and cruel,more birds and animals dying out.A. ought to avoidB. could have been avoidedC. should have avoidedD. might have avoided解析：句意为：如果人类少点贪婪少点残忍，更多的鸟类和动物就有可能免于灭绝。这里考查的是对过去情况的假设，从句用 had done,主句用 would/could/might have done。 avoid避免，其后接 doing时没有被动语态。答案： D16. （2011 哈尔滨检测）anyone call , please tell him I m not free.A. MustB. CanC. MayD. ShouldI m not free.当if省略时，句子要倒装，故答案： D解析： 本题考查情态动词用法。句意为：如果有人给我打电话，就告诉他我很忙。第 一个分句是省略了 if 虚拟条件句，补充完整为： If anyone should call , please tell him D项正确。17. （2011 北京海淀期末）If you hadn t taken such a long time to get dressed we there by now.B. areA. would beC. have beenD. had been解析：句意为：如果不是你穿衣服花了那么长时间的话，我们现在就到那里了。从句用了与过去相反的虚拟语气，但主句与现在情况相反，故选 A项。答案： A18. （2011 福建龙岩检测 ）一I didn t attend the lecture yesterday. I, either , if my mother hadn t