《2013版八年级上册unit9语法》由会员分享，可在线阅读，更多相关《2013版八年级上册unit9语法（3页珍藏版）》请在金锄头文库上搜索。
1、Unit 9. Can you come to my party?语法语法：can 的用法的用法1.情态动词情态动词 can 除了表示能力、许可、猜测除了表示能力、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 cant. 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 b
2、e true? 那会是真的吗？Today is Sunday. He cant be at school. 扩展：扩展：can 和和 be able to 1)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
3、 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。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 , Idlove 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 .Im not free this
4、 weekend . I have to.I love to come .but Im afraid I cant. I have to. 扩展：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.? “你想要你想要(做做)吗吗?”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. Id like / love to. 2）Shall I / we
5、do sth.? “我我(们们)做做好吗好吗?”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) Lets do sth. “咱们做咱们做吧。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: Lets listen to this tape, shall we? 4) 主语主语+had(d) better (not) do sth. “某人最好某人最好(不要不要)做某事做某事”该句型用于表示对下级、晚辈的劝告,往往带
6、有命令、强制的语气eg: Youd better go to hospital at once. 5) Why not do sth.? “为什么不为什么不?” =Why dont 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 dont 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 outsid
7、e 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 . 【接受建议的应答语接受建议的应答语】 Yes, please. / OK. / Certainly. / Good idea. / Thats a good idea! / What a good idea!/ All right. / Sure. / With pleasure.
8、/ I would be glad to. / Yes, Id like / love 【不接受建议的应答语不接受建议的应答语】 No, thanks. / Sorry, we cant. / Sorry, you cant. / Id like / love to, but .等。 【接受邀请的应答语接受邀请的应答语】1. Yes. With pleasure. / Yes, Im glad to. 是的,我很愿意。2. Thats very kind of you. Thank you. / Its very nice of you. Thank you. / That would be
9、very nice. Thank you. 你太好了,谢谢你! 3. Id love to come. Thank you for inviting / asking me. 我很高兴来,感谢你邀请我。 4. Yes / Certainly / Sure. Id like / love to. 是的,我很愿意去。 【拒绝邀请的应答语拒绝邀请的应答语】 1. Id love / like to, but I have to .我很想去,但我不得不 2. Im very sorry, but I cant .很抱歉,可我不能 3. Thats very kind of you, but Im af
10、raid .你真是太好了,不过我恐怕 4. Sorry, but I cant. Thank you all the same. 对不起,但我不能,谢谢你。 练习练习: ( )1. I hope you can come to my birthday party next Sunday. _. A. Yes, you can B. Certainly! Its here C. Not at all D. Of course. With pleasure ( )2. Would you like to come to my office this afternoon? Id love to, _
11、 Im 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. Thats 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 l
12、ot of tea. A. Id love to B. I think so C. Im afraid not D. I dont think so ( )6. Be careful! The water is too hot. Youd better _ it right now. A. do not drink B. not to drink C. not drink D. not drinking补充：补充：1.could 不表示时态不表示时态，提出委婉的请求，提出委婉的请求，(注意在回答中不可用注意在回答中不可用 could)。在否定，疑问句中表示推测或怀疑。在否定，疑问句中表示推测或
13、怀疑。- Could I have the television on?- Yes, you can. / No, you cantHe couldnt be a bad man. 他不大可能是坏人。 2. 回答以回答以 may 开头的疑问句有如下表达法：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 cant. / No, you mustnt. / No, youd better not. 请不要抽烟。 3. 回答以回答以 must 开头的疑问句有如下表达法：开头的疑问句有如下表达法： -Must I go there ? -Yes ,you must. -No, you neednt./ you dont have to 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
