情态动词和虚拟语气
专题六 分层训练·知能双升 考点一 情态动词 1．—How's your new babysitter? —We ________(not) ask for a better one. All our kids love her so much. 解析：句意：——你家的新保姆怎么样？——我们不能再要求一个比这个更好的保姆了，所有的孩子都非常喜欢她。can't/couldn't ask for a better one意为“不能要求一个更好的了”，也就是说“那是最好的”。21·cn·jy·com 答案：can't/couldn't 2．I ________ worry about my weekend — I always have my plans ready before it comes.2·1·c·n·j·y 解析：句意：我不必担心周末的事情——我总是在周末之前就做好了计划。needn't没有必要。 答案：needn't 3．—I don't really like James. Why did you invite him?21·世纪*教育网 —Don't worry. He ________ not come. He said he wasn't certain what his plans were. 解析：句意：——我真的不怎么喜欢詹姆斯。你为什么邀请他？——别担心，他或许不会来。他说他还不能确定他的计划是什么。根据题干中的wasn't certain可知设空处表示不确定。 答案：may/might 4．If you ________ smoke, please go outside. 解析：句意：如果你非要抽烟，请到外面去。must用于条件句，表示“非要，偏要”。 答案：must 5．They ________ have arrived at lunchtime but their flight was delayed. 解析：句意：他们本应该在午餐时间到达，可是他们的飞机误点了。should have done表示过去本应该做某事而未做。www-2-1-cnjy-com 答案：should 6．If you ________ go, at least wait until the storm is over. 解析：句意：如果你偏要走，至少要等到暴风雨停了。must表示“非要，偏偏”，多指令人不快的事。 答案：must 7．We ________ have bought so much food now that Suzie won't be with us for dinner. 解析：句意：既然苏西不和我们一起吃晚饭，我们本没必要买如此多的食物。needn't＋have done表示本没必要做某事，而实际上做了。 答案：needn't 8．I ________ thank you too much for all your help to my son while we were away from home. 解析：句意：我再怎么感谢你都不为过，因为我们不在家的时候你帮助了我的儿子。高 考 回 顾 1
can't...too much表示“再??也不为过”。
答案：can't
9．—________ you interrupt now? Can't you see I'm on the phone? —Sorry Sir, but it's urgent. 解析：句意：——你非要现在插嘴吗？难道你没看见我在打电话吗？——很抱歉，先生，但是这个事情太紧急了。must表示“非要，偏偏”，多指令人不快的事。
答案：Must
10．It's quite warm here; we ________(not) turn the heating on yet. 解析：句意：这儿相当暖和，我们还没必要开暖气。needn't没有必要。 答案：needn't 11．I ________(not) use a clock to wake me up because at six o'clock each morning the train comes by my house.
解析：句意：我不需要用闹钟来叫醒我，因为每天早晨六点钟，那趟火车就会从我家附近经过。needn't不需要，没必要。
答案：needn't
12．One of our rules is that every student ________ wear school uniform while at school.
解析：句意：我们其中的一项规定就是，学生在校期间应该穿校服。shall用于第三人称的陈述句中用来介绍条约、法令等文件中的规定。
答案：shall
13．He ________ sleep, although he tried to, when he got on such a hunt for an idea until he had caught it.
解析：句意：当他像这样思索一个主意的时候，尽管他很想睡，但是就是睡不着，直到把主意想出来。could表能力，意为“能够，可以”，couldn't是其否定形式。
答案：couldn't
14．The children ________(get) lost in the woods; otherwise, they would have been at the lakeside camp as scheduled.
解析：句意：孩子们一定是在树林里迷路了，否则他们就会按照预定时间来到湖边营地了。根据“would have been”可知是对过去事情的虚拟，must have done表示对过去发生的事情的肯定推测。
答案：must have got
15．—What are you doing this Saturday?
—I'm not sure, but I ________ go to the Rolling Stones concert. 解析：句意：——你这个周六要干什么？——我不太确定。我可能去滚石乐队的音乐会。由“I'm not sure”可以判断设空处应填表示可能性不是很大的情态动词may/might。
答案：may/might
16．—Why are your eyes so red? You ________ have slept well last night. —Yeah, I stayed up late writing a report.
解析：句意：——你的眼睛为什么那么红？昨晚你肯定没睡好。——是的，我熬夜写报告了。“can't/couldn't have＋过去分词”表示过去不可能做了某事。
答案：can't/couldn't
17．I ________(enjoy) myself more — it was a perfect day.
解析：句意：我玩得再开心不过了——这是完美的一天。“can't/couldn't ...more”表示最高级的意思；根据题干中的was可知设空处表示“过去再开心不过”，故答案为
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couldn't/can't have enjoyed。
答案：couldn't/can't have enjoyed
18．No one ________ be more generous; he has a heart of gold. 解析：句意：没有人能比他更慷慨了，他拥有一颗金子般的心。can't/couldn't...more表示最高级的意思。no one本身就表示否定，故用can/could的肯定形式。
答案：could/can
19．Since nobody gave him any help, he ________ have done the research on his own.
解析：句意：既然没有人帮助他，他一定是独自完成了这项研究。根据题干中“Since nobody gave him any help”可判断设空处表示肯定的推测。
答案：must
20．The door ________ open, no matter how hard she pushed.
解析：句意：不管她怎么用力推，门就是打不开。“won't/wouldn't open”可表示门很难打开。此处open主动形式表示被动意义。本句题干中有“pushed”，故设空处填wouldn't。
答案：wouldn't 考点二 虚拟语气
1．Maybe if I ________(study) science, and not literature then, I would be able to give you more help.
解析：句意：也许如果当时我学习的是科学而不是文学的话，那么我现在就可以给你更多的帮助了。根据then一词可以确定此处表示与过去事实相反，if引导的从句部分用“had done”形式。
答案：had studied
2．Sorry, I am too busy now. If I ________(have) time, I would certainly go for an outing with you.
解析：句意：对不起，我现在太忙了。如果我有时间，一定会跟你去远足。根据前一句可知设空处是对现在的假设，故if从句谓语动词用过去式。
答案：had 3．Grace doesn't want to move to New York because she thinks if she ________(live) there, she wouldn't be able to see her parents very often.
解析：句意：格雷丝不想搬到纽约去，因为她认为如果她住在那里，她就不能经常见到父母了。主句说明了客观事实，if从句是对将来事实的假设，故在条件状语从句中用were to live/lived/should live。
答案：were to live/lived/should live
4．If my car ________(be) more reliable, I would have driven to Lhasa instead of flying last summer.
解析：句意：如果我的车(性能)更可靠些的话，去年夏天我就开车去拉萨而不是坐飞机去了。根据语境可知题干为与过去事实相反的假设，if引导的条件从句应该使用过去完成时。
答案：had been 5．If we ________(make) adequate preparations, the conference wouldn't have been so successful.
解析：句意：如果我们没有做好充分准备的话，会议就不会如此成功。分析句子结构可知本句是一个虚拟语气句式，根据主句中的wouldn't have been可知是对过去事情的虚拟，
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因此if条件从句要用had done形式来表示对过去发生事情的虚拟。
答案：hadn't made
6．We would have called a taxi yesterday if Harold ________(offer) us a ride home.
解析：句意：昨天如果Harold不让我们搭车回家的话，我们就会叫出租车了。根据would have called及yesterday可知此句为与过去事实相反的假设，所以设空处为过去完成时，又根据句意得知此处应为否定，所以填hadn't offered。【来源：21cnj*y.co*m】
答案：hadn't offered
7．Don't handle the vase as if it ________(be) made of steel.
解析：句意：不要把那个花瓶当作是钢做的那样搬运。as if引导的是与现在事实相反的虚拟语气，谓语动词应用一般过去时，be动词用were。
答案：were 8．Jack is a great talker. It's high time that he ________(do) something instead of just talking.
解析：句意：杰克是一个大空谈家，到他该做事情而不是空谈的时候了。根据虚拟语气句型It is high time that sb.did sth.或It is high time that sb.should do sth.(到某人该做某事的时候了)可得出答案。
答案：did/should do
9．I should not have laughed if I ________(think) you were serious. 解析：句意：如果我(当时)认为你是认真的，我就不会笑了。主句中谓语动词使用should not have laughed，表明与过去的事实相反，从句谓语动词应该使用had done形式。
答案：had thought
10．—Do you think George has passed the driving test?
—No. If so, he ________(drive) his car to our college yesterday.
解析：句意：——你认为乔治通过驾照考试了吗？——没有。如果通过了，昨天他就会开车去我们大学了。由yesterday可知本句是与过去事实相反的假设，空格处应填主句的谓语动词，故用would have driven。
答案：would have driven
11．—It rained cats and dogs this morning. I'm glad we took an umbrella. —Yeah, we would have got wet all over if we ________(have)．
解析：句意：——今天早上下了滂沱大雨。很高兴我们带了伞。——是的。要是我们没带的话就全身湿透了。与过去事实相反的虚拟语气，从句使用过去完成时。本题中if从句采用省略形式，补充完整后为：...if we hadn't taken an umbrella.
答案：hadn't
12．Eye doctors recommend that a child's first eye exam ________ at the age of six months old.
解析：句意：眼科医生建议，孩子的第一次眼睛检查应该在6个月大时进行。recommend建议，其后的宾语从句中用should＋动词原形，且should可以省略。
答案：(should)be
13．My mom suggests that we ________ eat out for a change this weekend. 解析：句意：妈妈建议我们这个周末出去吃饭来换换口味。suggest作“建议”讲时，后面的从句要用虚拟语气，从句谓语动词用“(should＋)动词原形”形式。
答案：should
14．I ________(go) to my cousin's birthday party last night, but I was not
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