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2021届高中英语新高考一轮语法复习讲义(三十八)情态动词+have done用法总结
2021届高中英语新高考一轮语法复习讲义(三十八)情态动词+have done用法总结

2021届高中英语新高考一轮语法复习讲义(三十八)情态动词+have done用法总结(含针对训练与解析)

如:1)It must have rained last night ,for the ground is wet.

2) You can't have forgotten it .

3)I should/ought to have told you about it ,but I forgot.

4)You needn't have waken me so early, for today is sunday.

5)It's too late , she may have gone to bed.

6)You had better have started earlier.

7) I would rather have finished my article ahead of time.

8)I would love to have visited you yesterday ,but I was too busy.

真题演练

用适当的情态动词填空。

1. I can’t find mypurse. I (leave)it in the supermarket yesterday, but I’m not sure.

句意:我找不到钱包了!我可能昨天把它忘到超市里了,不过我不确定。

2. I have worried before I came to the new school, for my classmates here are very friendly tome.

3.—Sorry, Mum! I failed the job interview again.

—Oh, it’s toobad. You have made full preparations. 4. My book, The House of Hades, is missing. Who have taken it?

句意:我的书《哈迪斯之屋》丢了。谁可能拿走了它?

5. Since nobody gave him any help, he have done the research on his own.

6. The children (get)lost in the woods; otherwise, they would have been at the lakeside camp asscheduled.

7. I (enjoy) myself more — it was a perfect day.

8. —What are you doing this Saturday?

—I’m not sure, but I goto the Rolling Stones concert. 9. One of our rules is that every student wear school uniform while at school.

10. I use a clock to wake me up because at six o’clock each morning the train comes by my house.

11. You bring your identification when you open a bank account.

12.— you interrupt now? Can’t you see I’m on the phone?

—Sorry Sir, but it’s urgent.

13. I’m going to Europe on vacation together with John if

I find the money.

14. I got close enough to hear them speaking Chinese, and I

—Oh, it’s too bad. You should have made full preparations.本句用should have done sth.表示"本应该做某事",暗含对对方的责怪。

4.My book, The House of Hades, is missing. Who could have taken it?

句意:我的书《哈迪斯之屋》丢了。谁可能拿走了它?该句表示对过去某事的推测,故要用could have done。

5. Since nobody gave him any help, he must have done the research on his own.

句意:因为没有人帮助他,他一定是独自进行研究的。由Since nobody gave him any help可知,主句谓语部分表示对过去的情况把握较大的肯定推测,所以主句谓语应用must have done sth.的形式,must have done sth. 表示"一定做了某事"。

6. The children must have got (get) lost in the woods; otherwise, they would have been at the lakeside camp as scheduled.

句意:孩子们一定是在树林里迷路了,否则他们已经按照安排到湖边的营地了。由题干的后一个分句可知,此处表示对过去的情况把握较大的肯定推测,故用must have done(一定做了某事)结构。

7. I couldn’t have enjoyed (enjoy) myself more — it was a perfect day.

句意:我从没有玩得这么开心过——真是完美的一天。此处是否定词not与more连用,表示最高级的含义,同时couldn't have done 表示"过去不可能做过某事"。

8. —What are you doing this Saturday?

—I’m not sure, but I might go to the Rolling Stones concert. 句意:"这个周六你要干什么?""我不确定。但我可能会去看滚石演唱会。"所填词意为"可能",表示一种可能性,所以本题填might。9. One of our rules is that every student shall wear school uniform while at school.句意:我们的其中一条规则就是,每个学生在校期间都必须穿校服。shall与第三人称连用表示规定。

10. I needn’t use a clock to wake me up because at six o’clock each morning the train comes by my house.

句意:我不必用钟表叫醒自己,因为火车每天早上六点经过我的房子。根据原因状语从句的内容可知此处表示的是"不必",故填needn't。

11.You must bring your identification when you open a bank account.

句意:开银行账户时,你必须带上身份证。根据常识和句意可知此处表示"必须",故填must。

12.— Must you interrupt now? Can’t you see I’m on the phone?

—Sorry Sir, but it’s urgent.

句意:"你偏要现在打扰我吗?难道你没有看到我正在打电话吗?""对不起,先生,但是情况紧急。"must表示"偏要,偏偏",符合语境。

13. I’m goingto Europe on vacation together with John if

I can find the money.句意:如果我能找到钱,我就可以和约翰一起去欧洲度假。can意为"能,可以",符合语境。

14. I got close enough to hear them speaking Chinese, and I said"Ni Hao," just as I might do in China.

句意:我足够靠近他们,听到他们在说汉语,我说了声"你好",就像在中国我可能会做的那样。might在此意为"可能",表示一种可能性。

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He cannot make the tea. Sally cannot air the room. We cannot speak English. ★肯定回答及否定回答 Yes, he can. / No, he cannot. Yes, she can. /?No, she cannot. Yes, we can. / No, we cannot. ★特殊疑问句:(必背) What can you do? 注意:情态动词的句子没有第三人称单数的变化,不要在情态动词或动词后面加s。

2)must/have to的区别 must 表示必须,是主观上觉得应该做,have to是不得不,是由于客观条件逼迫的必要要做 must 只能用在表示现在和将来的句子里,而have to do可以用在任何时态 3)must, may, might表示猜测: ·must do 表示对现在事实的猜测 ·must have done表示对过去事实的猜测 ·must have been doing 表示对过去正在进行的事实的猜测 ·may/might do, may/might have done表示没有任何事实依据的猜测,might的可能性更小。 4)can't/couldn't 表示不可能

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