Unit 9. Can you come to my party?语法：can 的用法1. 情态动词can 除了表示能力、许可、猜测 还可以用于表示邀请1）表能力，有“能，会，能够”的意思例如：eg: He can run fast,but I can,t . ---Can you drive a car ? ---Yes, I can. 我会/ No, I can't. 2）表允许，在口语中代替may，有“可以”的意思 eg: Can I smoke in this room? 3）表示可能性，常用于否定句和疑问句例如： eg: Can it be true? 那会是真的吗？ Today is Sunday. He can't be at school. 扩展：can 和be able to1)can could 表示能力；可能 (过去时用could) 只用于现在式和过去式(could)be able to可以用于各种时态 eg:They will be able to tell you the news soon. 他很快就能告诉你消息了2)只用be able to： a. 位于助动词后。
b. 情态动词后 c. 表示过去某时刻动作时 d. 用于句首表示条件 e. 表示成功地做了某事时，只能用was/were able to， 不能用could eg: He was able to flee Europe before the war broke out 2 还可以用于表示邀请当情态动词can 发出邀请时，其回答分为两类一类表示接受邀请；另一类表示拒绝邀请1）接受邀请’----Can you come to my party ? Sure , I’dlove to .Yes ,I ‘d love to.Sure , I think he /she /they will .2) 拒绝邀请 Sorry. I ‘m not available . I ‘m sorry .I’m not free this weekend . I have to..... I ‘ love to come .but I’m afraid I can’t. I have to.......扩展： 想别人发出邀请、请求，建议、或是征求某人意见，还有以下的表达方式，大多数语气比较委婉，显得客气而有礼貌。
1）Would you like / love (to do) sth.? “你想要(做)……吗?” 这是一个很委婉的表示建议的句型,并带有与对方商量的意味eg: —Would you like to go to the cinema with me? —Yes. I’d like / love to.2）Shall I / we do sth.? “我(们)做……好吗?” 此句型是用来提建议或征求对方意见的,语气委婉,商量的语气较浓 eg: Shall we go to the zoo?3) Let's do sth. “咱们做……吧 当你觉得可以直截了当地向对方提出建议,让对方和自己一起去做某事时,常用该句型,该句型后常加附加问句“shall we?”,使语气更加委婉 eg: Let’s listen to this tape, shall we?4) 主语+had(‘d) better (not) do sth.. “某人最好(不要)做某事” 该句型用于表示对下级、晚辈的劝告,往往带有命令、强制的语气 eg: You’d better go to hospital at once.5) Why not do sth.? “为什么不……?” =Why don’t you do..? 表示向对方提出一种建议或询问某种原因,暗含有责备对方的意思。
eg: Why not go and ask your teacher? =Why don’t you go and ask your teacher?6) What / How about (doing) sth.? 如果是在讨论式的谈话中,可用该句型提出一个建议或引出一个新话题 eg: What about meeting outside the school gate? —My father is a worker. —What / How about your mother?7) Would you like some.......?eg: -----Would you like some coffee.?----- Yes, please./No ,thanks .【接受建议的应答语】 Yes, please. / OK. / Certainly. / Good idea. / That’s a good idea! / What a good idea!/ All right. / Sure. / With pleasure. / I would be glad to. / Yes, I’d like / love 【不接受建议的应答语】 No, thanks. / Sorry, we can’t. / Sorry, you can’t. / I’d like / love to, but ...等。
【接受邀请的应答语】 1. Yes. With pleasure. / Yes, I’m glad to. 是的,我很愿意 2. That’s very kind of you. Thank you. / It’s very nice of you. Thank you. / That would be very nice. Thank you. 你太好了,谢谢你!3. I’d love to come. Thank you for inviting / asking me. 我很高兴来,感谢你邀请我4. Yes / Certainly / Sure. I’d like / love to. 是的,我很愿意去拒绝邀请的应答语】1. I’d love / like to, but I have to ...我很想去,但我不得不……2. I’m very sorry, but I can’t ...很抱歉,可我不能……3. That’s very kind of you, but I’m afraid ...你真是太好了,不过我恐怕……4. Sorry, but I can’t. Thank you all the same. 对不起,但我不能,谢谢你。
练习:( )1. —I hope you can come to my birthday party next Sunday.— _____________.A. Yes, you can B. Certainly! It’s here C. Not at all D. Of course. With pleasure( )2. —Would you like to come to my office this afternoon? —I’d love to, _______ I’m too busy.A. so B. but C. as D. and( )3. —Why not go camping this weekend? — _______________.A. You are right B. Good idea C. That’s right D. Never mind( )4. —The room is so dirty. ________ we clean it? —Of course.A. Will B. Would C. Do D. Shall( )5. —Would you like to drink some juice? —Thanks. __________, but I have drunk a lot of tea. A. I’d love to B. I think so C. I’m afraid not D. I don’t think so( )6. Be careful! The water is too hot. You’d better ____________ it right now.A. do not drink B. not to drink C. not drink D. not drinking补充：1.could不表示时态，提出委婉的请求，(注意在回答中不可用could)。
在否定，疑问句中表示推测或怀疑 Could I have the television on? --- Yes, you can. / No, you can'tHe couldn't be a bad man. 他不大可能是坏人 2. 回答以 may 开头的疑问句有如下表达法：---May I smoke here? 我可以在这儿抽烟吗？---Yes, you may. / Yes, please. 请抽吧No, you can't. / No, you mustn't. / No, you'd better not. 请不要抽烟3. 回答以 must开头的疑问句有如下表达法： ---Must I go there ?---Yes ,you must.---No, you needn’t./ you don’t have to what &how 引导的感叹句 形容词＋可数名字复数1）what + a\san+ 形容词＋可数名字单数 ＋（主语＋谓语）＋！(主语＋谓语是可以省略的)形容词＋ 不可数名词eg: what a nice day it is！ what nice people they are! 2) how＋ 形容词 \ 副词＋(主语＋谓语)＋！(主语＋谓语是可以省略的。
)eg: how nice the day is!how fast the car rrns练习： 1 __________ it is today! A How cold B What cold C How a cold D What a cold2 __________bad the weather is! A How B What C What a D How a3 __________good news it is ! A How B What a C How a D What4 __________the sunshine is！ A What a bright B How a bright C How bright D what bright5___________ he writes. A How good B How well C What good D What well6_____exciting the news is! And it’ll arrive at the opening ceremony on August 8th, 2008.A. What a B.How C.How a D.What7____kind girl Nancy is! Yes. She is always ready to help others. A.What B.How a C.What a D.How8. Let’s go out for doing sports. ______sunny day! A.What B.How a C.What a D.How9. ______exciting news! We’ve never had _____long vacation before.A.What;such a B.How; such a C.What an;such a D what; so a 10.____important English speech contest they are listening to! A.What B.How a C.What an D.How an。