1、 時間 分鐘 時間 分鐘 提問八上第一單元單詞 課題 情態動詞could和can的用法 時間 分鐘目標1 掌握情態動詞can,could的用法 目標2 會使用can,could表建議和推測 時間 分鐘一、情態動詞can的基本用法情態動詞can有一定的詞義,但不能獨立存在,它必須與動詞原形一起構成謂語。情態動詞can沒有人稱和數的變化。其具體用法如下:1.表示"能、會",指腦力或體力方面的"能力"。例如:I can speak English.我會講英語。Jim can swim but I can't.吉姆會游泳,但我不會。2.表示"可

2、能",常用于否定句或疑問句中,指某種可能性。例如:Han Mei can't be in the classroom.韓梅不可能在教室里。Can he come here today, please?請問他今天能到這里來嗎？3.表示"可以",常用于口語中,指許可或請求做某事。例如:Can I have a cup of tea, please?請問我可以喝一杯茶嗎？You can go out.你可以出去了？二、情態動詞的注意事項1. can的口訣：情態動詞can、can、can，動詞原形跟后面。 變疑問can提前，變否定not后面加上去。 主語人稱單復數

3、，情態動詞不能變。2. 情態動詞can可以引導肯定句和疑問句。（1）、肯定句：主語 + can + 動詞原形 + 其他成分（2）、疑問句：can + 主語 + 動詞原形 + 其他成分3.can 引導的肯定句變為疑問句的方法：（一調二改三問號）（1）、can 提前，首字母大寫。（一調）（2）、肯定句中主語在變成疑問句時的變化。（二改） 如：肯定句：You can feed the animals.你可以喂動物。 疑問句：Can I feed the animals?我能喂動物嗎？ （3）、在句尾后面加問號。（三問號）4. Can的一般疑問句回答：（1）、肯定回答：Yes，主語（必須人稱代詞） +

4、 can.（2）、否定回答：No，主語（必須人稱代詞） + can not （cant）/mustnt. Yes 或 no 后要使用逗號，除了I 以外，其他人稱都要小寫。5、表推測是肯定推測用must be，否定推測為cant becouldv.aux.（助動詞）can的過去式1. 用來表示過去的能力、可能性或允許：I could run faster then.It could be no better at that time.Only men could go to the club in those days.2. 用來表推測或條件：I could be wrong.If we cou

5、ld help, we would.3. 用于表示試探性或禮貌：Could you come over here? 回答是注意不能再用could回答，應為yes，I can/sure 或sorry, I cant 時間 滿分 得分 二次評價 1_ I take some photos in the hall?  No, you _.A. Can, neednt  B. Must, mustnt C. Could, wont D. May, mustnt2Who is the man over there? Is it Mr. Li?  No, it _ be hi

6、m. Mr. Li is much taller.A. mustnt  B. may no C. cant   D. neednt3Dad, must I finish my homework today? No, you _. You may do it tomorrow.A. neednt B. mustnt C. dont D. wont4Must I go with them tomorrow？ No，you _. A. mustn't    B. shouldn't    C. needn't

7、0;   D. can't5. Can I watch TV for a while？ No, you _. You have to finish your homework first. A. shouldnt B. cant C. mustnt D. wont 學習態度： 做題規范： 知識掌握： can, could 1) 表示能力（體力、知識、技能）。 Can you lift this heavy box?（體力） Mary can speak three languages.（知識） Can you skate?（技能） 此時可用be able to代替。Can只有

8、一般現在時和一般過去式；而be able to則有更多的時態。 Ill not be able to come this afternoon. 當表示“經過努力才得以做成功某事”時應用be able to，不能用Can。如： He was able to go to the party yesterday evening in spite of the heavy rain. 2) 表示請求和允許。 -Can I go now? - Yes, you can. / No, you cant. 此時可與may互換。在疑問句中還可用could, might代替，不是過去式，只是語氣更委婉，不能用于

9、肯定句和答語中。 - Could I come to see you tomorrow? - Yes, you can. ( No, Im afraid not. ) 3) 表示客觀可能性（客觀原因形成的能力）。 Theyve changed the timetable, so we can go by bus instead. This hall can hold 500 people at least. 4) 表示推測（驚訝、懷疑、不相信的態度），用于疑問句、否定句和感嘆句中。 Can this be true? This cant be done by him. How can this

10、 be true? 時間 滿分100 得分 二次評價 一、用can, , must, need的適當形式填空：1.  You _ return the library book on time.2.  I _ (not) find the way to the hospital. _you show me the way?3.    _ I finish the work right now? No, you _ (not). You _ do it later.4.    Its time for class.

11、You _ stop playing football 。5.   We _ start right now, or they would get there first.二、選擇正確的單詞填空 (who, where, when)1._ is that pretty girl? She is my sister.2._ are Jack and Tom? They are behind you.3._ do you go to school? I go to school from Monday to Friday.4._ has a beautiful flower?

12、John has a beautiful flower.5._ are they? They are my parents.存在問題： 時間 滿分 得分 二次評價 1. Could I use the phone, Miss Li? _. A. Yes, you could B. Im sorry I cant C. Yes, sure D. No, please2. Could you please do the dishes? _. Im going to do my homework.A. Sorry, I cant B. No, I couldntC. Yes, you canD. N

13、ever3. Would you please _ the children _ with the snake?A. to ask; not to playB. ask; not to playC. ask; not playD. ask; dont play4. Could I look at your picture? Yes, of course you _.A. could B. can C. will D. must5. Could you please pass me the salt? _A. Sure. Here you are. B. Good idea. C. Thank you. D. Im sorry to hear that.用所給單詞的適當形式填空 1. -  (can) you please buy some snacks for me,mom?- No, I can't. I'm busy cooking. 2. - Could you please  (lend) me your dictionary?- Yes,