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1、Unit 9 Can you come to my party?,Section A Grammar Focus,Yes,she can.,Can she come to the party?,Can she,No,he cant. He has to study.,Can he go to the baseball game?,Can he,Can they come to the party？,No ，they cant.They have to study for the math test.,Can they,Grammar Focus,3a Complete the answers
2、with might and one of the phrases in the box. 1. A: What are you going to do on Saturday? B: Im not sure. I might_ 2. A: What are you planning to do after school? B: I dont know. _,watch TV on the weekend my cousin visit grandparents practice the violin,practice the violin.,I might watch TV.,3. A: W
3、hen will you finish the science homework? B: _ 4. A: Who are you going to the movies with? B:_ 5. A: Are you free to come to my place on Saturday? B: _,On the weekend,My cousin,No. I might visit grandparents .,3b Complete the sentences below. Use the words in brackets to help you. Inviting: (can / p
4、lay tennis) _ Accepting:_ 2. Inviting: (would like to/ go to the movies) Reason: (might have to) _ Refusing :,Can you come to play tennis?,Sure, that sounds great.,would you like to go to the movies?,Im afraid not. I have too much,_ 3. Inviting: (can/hang out with us tonight) Reason: (must) _ Refusi
5、ng: _ 4. Inviting: ( would like to / come to my birthday party) _ Accepting:_,homework to do.,Can you hang out with us tonight?,Would you like to come to my birthday party?,No, I cant. I must finish my homework.,Sure, Id love to.,3c Write down everything you have to do next week. Choose a day and ti
6、me 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?,colorful weekend activities,go fishing,go shopping,go skateboarding,play basketball,go to the cinema,
7、climb mountains,surf the Internet,go to a party,go to the concert,study for a test,go to the doctor,have a piano lesson,visit his aunt,go to a baseball game/ have baseball training,Weekend Activities,What do you usually do on weekends?,What activities do you do on weekends?,have to 不得不,A: What do yo
8、u have to do this weekend?B: I have to,What weekend activities do you do?,study for a test,go to the doctor,have a dancing lesson,情态动词主要有：may/might, can/could, must, have to, shall/should, will/would, ought to, need, dare, used to。,Grammar 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：,1. 不能独立作谓语，只能
9、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) 3. 否定形式：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)。,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 come to my birthday party tomorrow？
10、 明天你来参加我的生日聚会，好吗？ Sorry, I cant. I am going to visit my grandpa. 很抱歉，我来不了，我要去看我爷爷。,1. can/may 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 the library more than two books at a time. The policeman says you cant park here.,(2) May/Can I/we? 表示征询对方许可。 Can
11、 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./Sorry, I cant. (3) 都可
12、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),否定句 This news may not be true. (也许不, =might not ) This news cant be true. (不
13、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 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
14、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ma
15、y肯定。 Theres someone at the door. It could/might(=may) be George. (肯定句),/It couldnt (=cant) be George.(否定句) /Could(=Can) it be George?(疑问句) 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
16、 you one more question? 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 can= am/is/are able to = shall/will be able to No one c
17、an do it. =No one is able 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 catch
18、ing ,But: Mr. Smith couldnt/wasnt able to see you because hes got a bad cold. (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
19、做某事。 have to 后接动词原形；have to有人称、 数和时态的变化, 其第三人称单数形式为 has to, 其疑问形式和否定形式要借助于 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 tomorrow morning? 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
20、“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, 在否定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、否定句。,5. must/have to must 表示主观“必
21、须”；have to表示客观客观需要，即“不得不” 。 I dont like this TV set. I must buy 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
22、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 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-ing,Task 总结,Exercise,一、选择正确的词 Thank you for (ask/ asking), but I cant go to the mo
23、vies with you. Paul has to study (at/ for) the math test tonight. My sister has too (much/ many) homework to do.,asking,for,much,4. Can you come to my party (at/ on) Saturday night? 5. She invites me (watch/ to watch) the basketball match the day after tomorrow. 6. I like playing (piano/ the piano).
24、,on,to watch,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 the m_ on Saturday? B: Im s_, I cant. I have too much h_ this weekend. And Im not f_ _ well today. A: Thats too b_. Whats the matter?,ovies,orry,omework,ad,eeling,B: Im not sure. Maybe I have a c_, as Im feeling a little
25、 cold. A: I think youd b_ go to the d_. B: I also t_ so. A: Maybe Im asking you to come another time. B: Sure. T_ for asking.,old,etter,octor,hink,hanks,三、选择题 1. Can you play tennis with on Saturday ? A. us B. we C. our D. ours 2. Henry his homework this afternoon. A. have to do B. have to doing C.
26、has to do D. has to doing 3. Tony is playing tennis the school team. A. on B. in C. to D. with 4. Jim play soccer with his friend this weekend, because he is very busy. A. can B. cans C. cannt D. cant,A,C,B,D,5. - ? -Its October the 14th. A. When is today B. whats today C. What time is today D. What
27、 day is today 6. He is with his father the whole day. A. fish B. fishes C. to fish D. fishing,B,D,7. Can you come to my party? - . A: Sure, I love B: Sure, I love to C: Sure, Id love to D: Sure, Id love.,C,8. -Would you like to play football with us? -_, but Im busy. A. No, I cant B. No, I wouldnt C
28、. Yes, Im glad D. Yes, Id love to 9. -_I take the newspaper away? -No, you mustnt. You _ read it only here. A. Must; can B. May; can C. Need; must D. Must; must,A,B,Its a Birthday Party,Friday,June30,at four hirty,Lisas house ,15th Street,Come and have fun!,For whom :,Time :,Place :,Lisa,Homework,Write an invitation based on the following information.,Thank You!,