人教版八年级上册英语unit9样品课件_02共4份section a-2

1、Unit 9Can you come to my party?Can sheCan she come tothe party?Yes,she can.Can hego to thebaseball game?No,he cant. He has to study.Can heCan they come to the party？Can theyNo ，they cant.They have to study forthe math test.Grammar FocusCan you come to my party on Saturday?Sure, Id love to.Sorry, I m

2、ust study for a math test.Can you go to the movies tomorrow night?Sure. That sounds great.Im afraid not. I have the flu.Can he go to the party?No, he cant. He has to help his parents.Can she go to the baseball game?No. shes not available. She must go to the doctor.Can they go to the movies?No, theyr

3、e not free. They might have to meettheir friends.3a Complete the answers with might and oneof the phrases in the box.1. A: What are you going to do on Saturday?B: Im not sure. I mightpractice the violin.2. A: What are you planning to do after school? B: I dont know. I might watch TV.watch TVon the w

4、eekendmy cousin visit grandparentspractice the violin3. A: When will you finish the sciencehomework?B: On the weekend4. A: Who are you going to the movies with?My cousinB:5. A: Are you free to come to my place onSaturday?No. I might visit grandparents .B:3b Complete the sentences below. Use thewords

5、 in brackets to help you.1. Inviting:(can / play tennis)Can you come to play tennis?Sure, that sounds great.Accepting:2. Inviting: (would like to/ go to the movies)Reason: (might have to)would you like to go to the movies?Im afraid not. I have too muchRefusing : homework to do.3. Inviting: (can/hang

6、 out with us tonight)Reason:(must) Can you hang out with us tonight?Refusing: No, I cant. I must finish my homework4. Inviting: ( would like to / come to mybirthday party) Would you like to come to my birthday party?Accepting: Sure, Id love to.3c Write down everything you have to do nextweek. Choose

7、 a day and time to have a party. Then invite classmates to your party.A: Can you come to my party?B: When is it?A: Next week, on Thursday night.B: Im sorry. I have to study for a math test.Do you know week?星期一Monday星期二Tuesday星期三Wednesday星期四Thursday星期五Friday星期六Saturday星期日Sundaycolorful weekendactivit

8、iesgoskateb oardin ggo shoppinggo to the cinemaplay basketballsurf the Internetgo to a partyclimb mountainsgo fishingWeekend Activitiesgo to the concertstudyfor a testhave a piano lessongo to a baseball game/ have baseball trainingvisit his auntgo tothe doctorWhat do you usually do on weekends?What

9、activities do you do on weekends? What weekend activities do you do?have to 不得不A: What do you have to do this weekend?B: I have tostudyfor a testgo tothe doctorhave a dancing lessonGrammar focus现在我们来着重学习情态动词can 以及have to 的用法。其特征主要有：情态动词主要有：may/might, can/could, must, have to, shall/should, will/woul

10、d, ought to, need, dare, used to。1. 不能独立作谓语，只能和动词原形一起构成谓语，表示说话人的语气和情态。2. 没有人称和数的变化。 (have to除外)形式：在其之后加not (have to除外)。疑问形式：情态动词提到主语之前(have to 除外)。3.can为情态动词, 在本单元中表示请求,用于发出邀请，后跟动词原形。当同意接受对方的邀请时, 常用Sure, Id love to. / Certainly. /Of course.等来回答；若不接受, 常用Sorry等来有礼貌地拒绝, 一般情况下需要说明不能接受邀请的原因以表示歉意。Can you

11、come to my birthday partytomorrow？明天你来参加我的生日聚会，好吗？Sorry, I cant. I am going to visit mygrandpa.很抱歉，我来不了，我要去看我爷爷。1. can/may(1)都可表示“许可” 。may用于较正式、客气的场合，而can比较随便（口语）。You may/can smoke here.Borrowers may not take out of thelibrary more than two books at a time. The policeman says you cant park here.(2)

12、May/Can I/we? 表示征询对方许可。Can you? 表示请求。 May I use your phone? Yes, you may./Yes, please./No, you may not./No, you mustnt./No, youd better not./Im afraid not./Im sorry. Id rather you didnt. Can I go out and play, Mum?Yes/Certainly, you can. /No, you cant. Can you help me with this bag?With pleasure./So

13、rry, I cant.(3) 都可表示“可能性” 肯定句Mr. Reed looks pale. He may be ill. (事实上的可能).Mr. Read is in poor health. He can be ill at any time. (逻辑、理论上的可能)This news may be true. (=might/could) (事实上的可能)Wang Wei can be really stubborn.(有时或偶然可能会)(=could)句This news may not be true. (也许不, =might not )This news cant be

14、true.(不可能, =couldnt)疑问句Can this news be true?(=Could)May this news be true?(4) can 还可表示“能力”、“能够”You can swim, cant you?No, I cant.I cant promise anything, but Ill do what I can.Tickets can be bought from the Tourist Information Center.2. might/could(1)分别为may和can的一般过去时，分别表示过去的“许可”、“可能” 和“能力” 、“能够”等。T

15、he children asked whether they could/might go for a swim.(过去许可)I was afraid it might rain that afternoon. (过去可能)He asked if the news could be true.(过去可能)(Can the news be true?)She said he could speak several languages. (过去能力)I couldnt find her telephone number.(过去能够)(2) 都可表示现在或将来的“可能性”。语气没有may肯定。The

16、res someone at the door.It could/might(=may) be George. (肯定句)/It couldnt (=cant) be George.(/Could(=Can) it be George?(疑问句)句) According to the radio it could/might/ may rain tomorrow. Lightning could (=can) be dangerous.(3) Might/Could I/we ?Could you ?表示更委婉、更客气的请求。 Might/Could I ask you one more qu

17、estion?Yes, of course you may/might/can/ could. Could you help me with these boxes?Of course I can./With pleasure.有时在陈述句中也表示更委婉、更客气的请求或邀请：I wonder if I could/might leave now.I dont suppose you could/might.3. can/be able to(1)can= am/is/are able to= shall/will be able to No one can do it.=No one is a

18、ble to do it. Can you come tonight?=Will you be able to come tonight?(2) could 表示过去的技能、本能; was/ were able to 表示过去某一具体场合经过努力而做成某事。 I could swim when I was six. He started late, but he was able to catch the eight oclock train.=but he managed to catch =but he succeeded in catching But:Mr. Smith couldnt

19、/wasnt able to see you because hes got a badcold.(3) be able to还有完成式和非谓语形式。 Im sorry I havent been able to answer your letter.=Im sorry for not being able to answer your letter. To be able to run is very important for a footballer.4. have to的意思是“必须、不得不”, 往往强调由于客观原因而必须做某事。have to 后接动词原形；have to有人称、数和

20、时态的变化, 其第三人称单数形式为has to, 其疑问形式和形式要借助于助动词do或does来完成。例如：We have to look after our sister at home. 我们不得不在家照顾我们的妹妹。 Does he have to get up early tomorrowmorning?明天早上他必须早起吗？I dont have to stay at home today.今天我不必呆在家里。情态动词“have to”与其他的情态动词如“can”, “may” “must”和“should”不同。1) 这4个情态动词没有人称的变化,而have to有, 它的第三人称

21、单数为“has to”如：He should study hard.He has to study hard.2) 这4个情态动词在一般疑问句中将它们放在句首, 在句中直接在他们后边加not即可。我们以can为例:-Can he go with us? 他能和我们一起去吗？-He cant go with us. 他不能和我们一起去。而“have to”要加助动词do , does或did才可能完成其疑问句、句。5. must/have to(1)must 表示主观“必须”；have to表示客观客观需要，即“不得不” 。I dont like this TV set. I must buy

22、a new one.This TV set doesnt work. We have to buy a new one. (now)You must get up at five tomorrow.We (will) have to get up early tomorrow were going to Devon. (future)I had to leave early because I wasnt feeling well. She said she must/had to see the manager.(past)表示邀请的句型:(你能来参加我的聚会吗?)Can you come

23、to my party?Could you come to my party? Would you like to come to my party?接受邀请:拒绝邀请:Sure, Id love/like to.Im sorry, I cant. I have to/Im V-ingExercise一、选择正确的词Thank you for asking(ask/ asking),but I cant go to the movies with you. Paul has to study for(at/ for) the math test tonight.My sister has to

24、o much(much/ many)homework to do.4. Can you come to my party on(at/ on)Saturday night?5. She invites me to watch(watch/ to watch) the basketball match the day after tomorrow.6. I like playing the piano(piano/ the piano).二. 对话填空。每空一词，单词的首字母已给出。A: Hey, Xiao Wang, can you go to them ovieson Saturday?B:

25、 Imosrry, I cant. I have too muchhomeworkthis weekend. And Im notfeelingwell today.A: Thats too abd. Whats the matter?B: Im not sure. Maybe I have a ocld, asIm feeling a little cold.A: I think youd ebttergo to the doctor. B: I also t hinkso.A: Maybe Im asking you to come another time.B: Sure. Thanks for asking.三、选择题1. Can you play tennis with Aon Saturday ?A. usB.weC. ourD. ours2. Henry Chis homework this afternoon.A. have to doC. has to doB. have to doingD. has to doing3. Tony is