人教版八年級(jí)上冊(cè)英語(yǔ)Unit9SectionAGrammarFocus-3c課件

1、Unit 9Can you come to my party? Section A 3a-3cTo learn to use “Would you like to?” to make invitationsTo use the following structure to talk about obligations: I might have to/mustObjectivesHey, Anna, can you come to my birthday party on Saturday? Oh, Sam! I remember we went bike riding last fall w

2、hen ReviewCan you play chess with me tomorrow afternoon?Sure. Id love to.Im afraid not. I have the flu.Can Lily take a walk with us?No, she cant. She must prepare for the exam.Can you come to my party on Saturday?Sure, Id love to./Sorry, I must study for a math test.Can you go to the movies tomorrow

3、 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, theyre not free. They might have to meet their friends.Grammar F

4、ocus情態(tài)動(dòng)詞主要有：may/might, can/could, must, have to, shall/should, will/would, ought to, need, dare, used to 現(xiàn)在我們來(lái)著重學(xué)習(xí)情態(tài)動(dòng)詞can 以及have to 的用法。其特征主要有：情態(tài)動(dòng)詞 can 的基本用法情態(tài)動(dòng)詞 can 有一定的詞義，但不能獨(dú)立存在，它必須與動(dòng)詞原形一起構(gòu)成謂語(yǔ)。情態(tài)動(dòng)詞 can 沒(méi)有人稱和數(shù)的變化。其具體用法如下:表示“能、會(huì)”指腦力或體力方面的“能力”。如: I can speak Japanese. 我會(huì)講日語(yǔ)。 Frank can swim but I can

5、t. 佛蘭克會(huì)游泳, 但我不會(huì)。2. 表示“可能”，常用于否定句或疑問(wèn)句中，指某種可能性。例如： My cousin cant be in this city. He is in Korea now. 我堂兄不可能在這個(gè)城市里。他在韓國(guó)呢。 Can he come to our club today, please? 請(qǐng)問(wèn)他今天能來(lái)我們俱樂(lè)部嗎？3. 表示“可以”，常用于口語(yǔ)中，指許可或請(qǐng)求做某事 Can I ask you a question? 我可以問(wèn)你一個(gè)問(wèn)題嗎？ You can bring something to eat. 你可以帶些吃的。can為情態(tài)動(dòng)詞, 在本單元中表示請(qǐng)求，用

6、于發(fā)出邀請(qǐng)，后跟動(dòng)詞原形。當(dāng)同意接受對(duì)方的邀請(qǐng)時(shí)，常用Sure, Id love to. / Certainly. /Of course.等來(lái)回答；若不接受，常用Sorry等來(lái)有禮貌地拒絕，一般情況下需要說(shuō)明不能接受邀請(qǐng)的原因以表示歉意。 Can you come to my birthday party tomorrow？ 明天你來(lái)參加我的生日聚會(huì)，好嗎？ Sorry, I cant. I am going to visit my grandpa. 很抱歉，我來(lái)不了，我要去看我爺爺。can/may(1)都可表示“許可” 。may用于較正式場(chǎng)合，can比較口語(yǔ)化。 You may/can sm

7、oke 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? 表示征詢對(duì)方許可。 Can you? 表請(qǐng)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 r

8、ather 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) 都可表示“可能性”Mr. Reed looks pale. He may be ill. Mr. Read is in poor health.He can be ill at any time. This news may be true.(=might/could) Wang Wei can be

9、really stubborn.Mr. Reed looks pale. He may be ill. Mr. Read is in poor health.He can be ill at any time.This news may be true. (=might/could)Wang Wei can be really stubborn. (4) can 還可表示“能力”、“能夠” You can swim, cant you? No, I cant. I cant promise anything, but Ill do what I can. Tickets can be boug

10、ht from the Tourist Information Center. have to 的用法1. have (has) to + 動(dòng)詞原形have (has) to 后面要用動(dòng)詞原形。當(dāng)主語(yǔ)為第三人稱單數(shù)時(shí)用 has to，當(dāng)句子是過(guò)去時(shí)用 had to。 We have to go home now. 我們不得不現(xiàn)在就回家。 He has to work on Sunday. 他不得不在周日工作。 I had to do much housework last Sunday. 上周日我不得不做很多作業(yè)。2. have to 的否定句句型： 主語(yǔ) +dont/didnt/doesnt

11、 wont +have to + 動(dòng)詞原形 You dont have to walk so fast. 你不必走那么快。 He will not have to buy a new coat next year. 明年他沒(méi)必要買(mǎi)新外衣了。3. have to 的疑問(wèn)句句型： Do/Does/Did/Will + 主語(yǔ) + have to + 動(dòng)詞原形Did he have to ask the question?他非要問(wèn)那個(gè)問(wèn)題嗎？Yes, he did. 是的。No, he didnt (have to). 不。不能獨(dú)立作謂語(yǔ)，只能和動(dòng)詞原形一起構(gòu)成謂語(yǔ)， 表示說(shuō)話人的語(yǔ)氣和情態(tài)。2. 沒(méi)

12、有人稱和數(shù)的變化。 (have to除外)3. 否定形式：在其之后加not (have to除外) 疑問(wèn)形式：情態(tài)動(dòng)詞提到主語(yǔ)之前(have to除外)。3. have to的意思是“必須、不得不”, 往往強(qiáng)調(diào)由于客觀原因而必須做某事。 have to 后接動(dòng)詞原形；have to有人稱、數(shù)和時(shí)態(tài)的變化, 其第三人稱單數(shù)形式為has to, 其疑問(wèn)形式和否定形式要借助于助動(dòng)詞do或does來(lái)完成。例如： We have to look after our sister at home. 我們不得不在家照顧我們的妹妹。 Does he have to get up early tomorrow

13、morning? 明天早上他必須早起嗎？ I dont have to stay at home today. 今天我不必呆在家里。4. must/have to must 表示主觀“必須”；have to表示客觀客觀需要，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. You must get up at five tomorrow. We (will) have to get up early tomorrow.I had t

14、o leave early because I wasnt feeling well.She said she must/had to see the manager. 表示邀請(qǐng)的句型: (你能來(lái)參加我的聚會(huì)嗎?) Can you come to my party?Could you come to my party?Would you like to come to my party?接受邀請(qǐng):拒絕邀請(qǐng):Sure, Id love/like to.Im sorry, I cant. I have to/Im V-ing小結(jié)1. A: What are you going to do on S

15、aturday? 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 violinpractice the violin.I might watch TV.Complete the answers with might and one of the phrases in the box.3a 3. A: When will you f

16、inish 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.1. Inviting: (can / play tennis) _ Accepting:_ Can you come to play tennis?Sure, that sounds great.Complete

17、 the sentences below. Use the words in brackets to help you.3b 2. Inviting: (would like to/ go to the movies) Reason: (might have to)_Refusing:_Would you like to go to the movies?Im afraid not. I have too much homework to do. 3. Inviting: (can/hang out with us tonight)Reason: (must) _Refusing: _ _Ca

18、n you hang out with us tonight? No, I cant. I must finish my homework.4. Inviting: (would like to / come to my birthday party) _Accepting:_Would you like to come to my birthday party?Sure, Id love to.Write down everything you have to do next week. Choose a day and time to have a party. Then invite c

19、lassmates 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.3c What do you usually do on weekends? What activities do you do on weekends? have to 不得不A: What do you have to do this weekend?B: I have toWhat weekend acti

20、vities do you do?Have a talk about your weekendcolorful weekend activities go shopping go skateboardingplay soccergo to the cinemaHave a talkcolorful weekend activities play the pianoclimb mountains go to a partysurf the Internet 1. Jim play soccer with his friend this weekend, because he is very bu

21、sy. A. can B. cans C. cannt D. cant2. Henry his homework this afternoon. A. have to do B. have to doing C. has to do D. has to doing3. ? Its October the 14th. A. When is today B. Whats today C. What time is today D. What day is todayDCI. 選擇填空。DExercises1. 星期六你能來(lái)我的聚會(huì)嗎？ _ you _ to my party on Saturday

22、?2. 當(dāng)然，我樂(lè)意去。Sure, _ _ _. 3. 對(duì)不起，我必須為數(shù)學(xué)考試而學(xué)習(xí)。 Sorry, I _ _ _ a math test. 4. 明天晚上你能去看電影嗎？ _ you _ to the movies _night?Id love toCan comemust study forCan goII. 根據(jù)課本內(nèi)容, 完成下列句子。 tomorrow5. 當(dāng)然可以，聽(tīng)起來(lái)很棒。 _, that _ _.6. 恐怕不行，我得了流感。 Im _ not. I have the _. 7. 他能參加聚會(huì)嗎？ _ he _ to the party?8. 不能，他得幫助他的父母。 No, he _. He _ to help his parents. 9. 她能參加棒球比賽嗎？ _ she go to the baseball _? Sure sounds greatafraid flu Can game Can gocant has10. 不，她沒(méi)有空。她必須去看醫(yī)生。 No, shes _ _. She _ _ to the _. 11. 他們能去看電影嗎？ _ they _ to the _?12. 不，他們沒(méi)有空。他們可能必須去見(jiàn)朋友。 No, theyr