中考英语二轮复习学案 情态动词 .docx

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1、情态动词T: Hello,YaoCheng! What can you do?S:_ T:Can you swim?S:_ T:Can you cook?S:_ T:Can your mother drive?S:_ 情态动词的定义情态动词是表达说话人_的词。情态动词有：情态动词有can/could/be able todaremay/mightneedmust/have tooughtshould/shallhad betterwill/would情态动词的基本用法1.情态动词不能单独使用，只能和其它动词原形共同构成谓语。Mary might to join us.2.情态动词没有人称和数的

2、变化Mary cans swim.3.情态动词的否定形式直接在后面加not.Mary doesnt can sing.情态动词can的用法1.Can you swim? Yes,I can.2.What can you do? I can dance.3.He can speak a little English now.4.She could play the piano when she was five.1. 表_can表示现在的_Could表示过去的_Can/Could I have a look of your book?Yes, you can.2. 表示_和_注意：在表示此意时，

3、没有时间上的区别，在语气上could更委婉。练习：1. David can _ (swim).2. She cant _ (speak) English.3. Can she _(go) to England with you? No, she cant.4. Can I _ (play) football this afternoon?5. They cant _ (open) the window.句型结构肯定式：主语+can+动词原形+其他1. I can speak English and I can also play soccer.2. I can play ping-pong a

4、nd chess.3. I can play the guitar and the piano. I can sing and dance too.否定句：表达某人不能做某事在can 后加not, can not 缩写为cant/cannot 汉译英 她不会说英语。_ 一般疑问句句式结构：_1. Can you swim? _（写出肯定回答和否定回答） 2. Can he play chess? _（写出肯定回答和否定回答） 3. Can you and Tom play chess?_（写出肯定回答和否定回答） 4. Can Jane and Jill swim?_（写出肯定回答和否定回答）

5、 特殊疑问句的句式结构：_1. What can you do?I can dance./I cant sing.2. What can I do for you?（有什么可以帮助到你的吗？） 练习：按要求完成句子1. Can you play the piano?(作肯定回答）2. I can play computer games（改为一般疑问句）-_ you_ computer games?-Yes. I_.3.Jim can play the piano.（对画线部分提问）3. Can your father cook？（作否定回答）情态动词may/might的用法May/Might

6、I ask for a photo of you?May/might I sit here?May/Might I borrow your dictionary?Class is over. You may go now.表示请求允许时，两者者都可用，只是might的语气更加委婉。（但是并不表示过去）I may be late,so dont wait for me.That may be true.表示可能性，意思是“也许，可能”May置于句首时表_,是虚拟语气的一种特殊形式。May you succeed!May you have a good time!练习：1._ I borrow y

7、our MP3?Sure . Here you are.A. May B.Should C.Must D. Would2. _you be happy!A. May B. Can C. Must D. Would情态动词must/have to的用法Dont be late for class. We must be on time.You must read a book before you watch TV.must表示_或强烈的建议，意为_must和have to 两者之间的区别：1. must通常表示的是说话人的主管看法，语气比较强烈，have to往往强调客观需要。I must g

8、o now.Its a little late and I have to go now.2. 它们的否定含义大不相同。mustnt 表示“不准；禁止”，而dont have to表示“不必”。例如：You mustnt talk to your mother like that.You dont have to come if you dont want to.3. must一般只表示现在，没有人称和数的变化。而have to则可以用于不同的时态，有人称和数的变化。例如：I/We/She/They must do something about it.I have to finish my

9、work today.She has to finish her work today.They had to get to the station before 5:00.当堂训练：1.-Can you go surfing with us this afternoon?-Id like to , but I _ look after my sister at home , because my mother is ill.A.need B.must C.have to D.should2. _ you pass me a pen? Id like to write down the pho

10、ne number. Sure. Here it is.A. Can B. Need C. Might D. Must3.May I go to the cinema, mum? Certainly, but you _ be back by 11 oclock.A. can B. may C. must D. need4.-May I take this book out of the reading room?-_. Please read it here.A. Certainly B.No, you neednt C.No, you mustnt D.No, you may not5.

11、_I go back before lunch? No, I dont think you_.A. Need.must B. Do.need to B. Must.have to D. May . ought to6. Must I finish this novel this morning ? No, you_.A. mustnt B. might not C. dont have to D. cant7. I wish to go home now, _I?A. may B. cant C. must D. do8. _ open the door for you ?A. Would you like that I B. Do you want that IC. Will I D. Shall I9.Could I borrow your dictionary? Yes, of course you_.A. might B. will C. can D. should10.Johnny, you _play with the knife, you hurt yourself.A. wont.cant B. mustnt.may C. shouldnt, must D. cant.shouldnt学科网（北京）股份有限公司