人教版八年級上冊英語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)在我們來著重學習情態(tài)動詞can 以及have to 的用法。其特征主要有：情態(tài)動詞 can 的基本用法情態(tài)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(tài)動詞 can 沒有人稱和數(shù)的變化。其具體用法如下:表示“能、會”指腦力或體力方面的“能力”。如: I can speak Japanese. 我會講日語。 Frank can swim but I can

5、t. 佛蘭克會游泳, 但我不會。2. 表示“可能”，常用于否定句或疑問句中，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城市里。他在韓國呢。 Can he come to our club today, please? 請問他今天能來我們俱樂部嗎？3. 表示“可以”，常用于口語中，指許可或請求做某事 Can I ask you a question? 我可以問你一個問題嗎？ You can bring something to eat. 你可以帶些吃的。can為情態(tài)動詞, 在本單元中表示請求，用

6、于發(fā)出邀請，后跟動詞原形。當同意接受對方的邀請時，常用Sure, Id love to. / Certainly. /Of course.等來回答；若不接受，常用Sorry等來有禮貌地拒絕，一般情況下需要說明不能接受邀請的原因以表示歉意。 Can you come to my birthday party tomorrow？ 明天你來參加我的生日聚會，好嗎？ Sorry, I cant. I am going to visit my grandpa. 很抱歉，我來不了，我要去看我爺爺。can/may(1)都可表示“許可” 。may用于較正式場合，can比較口語化。 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? 表示征詢對方許可。 Can you? 表請求。 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 + 動詞原形have (has) to 后面要用動詞原形。當主語為第三人稱單數(shù)時用 has to，當句子是過去時用 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 +dont/didnt/doesnt

11、 wont +have to + 動詞原形 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. 明年他沒必要買新外衣了。3. have to 的疑問句句型： Do/Does/Did/Will + 主語 + have to + 動詞原形Did he have to ask the question?他非要問那個問題嗎？Yes, he did. 是的。No, he didnt (have to). 不。不能獨立作謂語，只能和動詞原形一起構成謂語， 表示說話人的語氣和情態(tài)。2. 沒

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) 疑問形式：情態(tài)動詞提到主語之前(have to除外)。3. have to的意思是“必須、不得不”, 往往強調由于客觀原因而必須做某事。 have to 后接動詞原形；have to有人稱、數(shù)和時態(tài)的變化, 其第三人稱單數(shù)形式為has to, 其疑問形式和否定形式要借助于助動詞do或does來完成。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. 表示邀請的句型: (你能來參加我的聚會嗎?) Can you come to my party?Could you come to my party?Would you like to come to my party?接受邀請:拒絕邀請:Sure, Id love/like to.Im sorry, I cant. I have to/Im V-ing小結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. 星期六你能來我的聚會嗎？ _ you _ to my party on Saturday

22、?2. 當然，我樂意去。Sure, _ _ _. 3. 對不起，我必須為數(shù)學考試而學習。 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. 當然可以，聽起來很棒。 _, 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，他們沒有空。他們可能必須去見朋友。 No, theyr