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1、中考英语专项练习情态动词的用 法名校内部资料can, could1 .表达能力。2 .表示许可。3 .有礼帽地提出请求。（用于疑问句）4 .谈论可能性。5 .当主语为事物时可以表示惊异。We can use the computer now, but we couldnt two month ago.You can go now.Could you be here at eight oclock tomorrow morning?He cant be the manager, for I saw him go to Canada yesterday.What on earth can this
2、 mean?在表达能力时,可用be able to来取代cano要注意的是：可在 be able to前加肋动词或情态动词以表达更多的时态或情态，can或 could前则不可。No one is able to do it.(二 No one can do it.)We shall be able to finish the work next week.I havent been able to find any jobs.may might1 .表示允许2 .请求“许可(用于疑问句)3 .谈论可能性You may go home now.He said that I might drink
3、 some beer.May I watch TV this evening?-May I use you pen?-Yes, you may.He may/might come tomorrow.must1 .表达义务、责任O2 .进行“肯定的推断。3 .其否定式mustnt表示（说话人）禁止，不准.；用来代 替may not表示“不许可。Everybody must obey the rules.I must go now.This work must be finished as soon as possible.The Chinese language must have the la
4、rgest number of speakers.You mustnt lend the book to others.在表示“客观需要时，用have to而不用musto另外可在have to 前加肋动词或情态动词以构成更多的形式。must前则不可。You dont have to worry about that.He had to spend his childhood in hard work, helping his father on their small farm.The students of today will have to how to use the compute
5、rs.shall should1 .表示“必要性。2 .征求意见或看法，请求指示。3 .主语为二、三人称时，表达说话人强烈的意志和决心，有威胁或震 慑听话人的作用。We should be strict in all our work.Where shall I wait for you?Shall we start the meeting now?Tell him that he shall have the book tomorrow.You shall do as I say.Young people should learn how to use computers.在表示“必要性时，
6、可用ought ot来代替shall ,语气更正式一些。will would 1.表示必然性。2.表达意愿”或/,3z.-|/后、心、3.询问对方的意愿或提出请求。（用于疑问句）Fish will die out of water.Everyday she would get up at 6:00 and light the fire.I will tell you all about itWell help him if he asks us to.I wont go home now.I promised that I would do my bestWould you like another cup of tea?Will you go with me?Will you please ?