教育精品：八上U9SectionA-2

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,Unit 9,Section A,Period 2 (3a-3c),A: Can you come to my birthday party?,B: Sure, Id love to.,birthday party,A: Can you go to the concert?,B: Im sorry, I cant. I have to prepare for an exam.,go to the concert,prepare for an exam,A: Can you go to the movies?,B: Im sorry, I cant. I have to go to the doctor.,A: Can he go to the movies?,B: No, he cant. He has to go to the doctor.,go to movies,go to the doctor,A: Can you go to the zoo?,B: Sorry, I cant. I have to help my parents.,A:,Can he go to the zoo?,B: No, he cant. He has to help his parents.,go to the zoo,help my parents,A: Can you play computer games with me?,B: Sorry, I cant. I have to go to the baseball game.,A: Can he play computer games with me?,B: No, he cant. He has to go to the baseball game,.,play computer games,go to the baseball game,A: Can you play soccer with me?,B: Sorry, I cant. I have to watch TV.,A: Can she play soccer?,B: No, she cant. She has to watch TV.,play soccer,watch TV,Accept (,接受,) invitations:,Sure / Yes / Of course, Id love to.,Certainly, Id like to.,Decline,(,拒绝,) invitations:,Im sorry, I cant.,I have to look after my grandmother.,I have to study for a math test.,I am going shopping with my friend.,Can you .?,意为“你能,吗？”,，可用于邀请别人或委婉地请求某人去做某事。其肯定回答常用,Sure, Id love / like to.,，否定回答常用,Im sorry, I cant. / Sorry, I cant.,等。如：,- Can you go to the baseball game?,你能去参加棒球比赛吗？,- Im sorry, I cant.,对不起，我不能。,Explanation,单项填空,- Can you help me with my English this,weekend?,- Sorry, I _. I have a lot of homework,to do.,A. cant B. mustnt,C. neednt D. dont,答案：,A,题意：“请问这个周末你能帮我学习英语吗？”“对不起，我不能。我有很多作业要做” 。不能答应他人的请求时常用“,(Im ) Sorry, I cant.”,。,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。它的第三人称单数为“,has to”,。,You /,He,should,study hard.,你,/,他应该好好学习。,He,has to,study hard.,他不得不好好学习。,have to,的用法,（,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、否定句。,试将下面三种话分别写成,（,1,）一般疑问句，并作肯定回答。,（,2,）否定句。,a. They have to go to the party.,Do they have to go to the party?,Yes, they do.,They dont have to go to the party.,b. He has to go to see the doctor.,Does he have to go to see the doctor?,Yes, he does.,He doesnt have to go to see the doctor.,c. She had to study for a math test yesterday.,Did she have to study for a math yesterday?,Yes, she did.,She didnt have to study for a math yesterday.,have to,与,must,二者都有“必须”之意，但,have to,表示“客观上的需要”，有人称和时态的变化，否定形式为,dont / doesnt / didnt have to (,没必要,),；,must,表示“主观上的要求”，无人称和时态的变化，否定回答一般用,neednt,或,dont have to,(,不必,),。,mustnt,表示,“,禁止,”,。如：,比一比,We have to wear warm clothes in winter.,冬天我们不得不穿上暖和的衣服。,(,客观需要,),I must finish my homework first before I watch TV.,看电视前我必须先完成作业。,(,主观要求,),You dont have to tell him about it.,你不一定要把此事告诉他。,You mustnt tell him about it.,你一定不要把这件事告诉他。,Must I be home before eight oclock?,8,点之前我必须回家吗？,Yes, you must. / No, you neednt. / No, you dont have to.,是的，必须回家。,/,不，不必。,Bob cant come out to play because he _ help Dad in the garden.,A. can,B. must,C. has to D. have to,答案：,C,题意：,鲍勃不能出来玩了，他得在花园里帮他爸爸。表示客观上的需要，应用,have to,；句子为一般现在时，主语为第三人称单数，故选,C,。,即时练,(2008,厦门中考,) - I cant give up smoking, doctor.,- For your health, Im afraid you _.,A. may B. can C. have to D. must,【,解析,】,选,C,。,may,意为,“,可能、或许,”,，,can,意为“能、会,”,，,have to,意为,“,必须、不得不,”,，表客观要求，而,must,表主观愿望。根据题意：为了健康，你必须戒烟，选,C,。,【2010,四川达州,】- Must I finish my homework right now?,- No, you _.,A. neednt B. may not,C. mustnt D. cant,【,解析,】must,在表示,“,必须,应该,”,的时候，其疑问句的否定回答常用,neednt,或,dont have to,表示“不必,”,，而不用,must not,。根据句意,must,在句中作,“,必须”讲，故答案选,A,。,watch TV,on the weekend,my cousin,visit grandparents,Complete the answers with,might,and one of the phrases in the box.,3a,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. _,visit my grandparents,I might watch TV.,3. A: When will you finish the science homework?,B: _,_,4. A: Who are you going to the movies with?,B: _,_,5. Are you free to come to my place on Saturday?,B: _,_,watch TV,on the weekend,my cousin,visit grandparents,I dont know. I might finish it on weekend.,Im not sure. I might go with my cousin.,Im not sure. I might have to practice the violin.,3b,Complete the sentences below. Use the words in brackets to help you.,1.,Inviting:,_ (can/play tennis),Accepting:,_,2.,Inviting:,_,_(would like to/go to the movies),Refusing:,_,Reason:,_,(might have to),Can you play tennis on Saturday?,Sure. That sounds great.,Would you like to go to the movies on Friday?,Sorry, I cant.,I might have to go out with my parents.,3,. Inviting:,_,(can/ hang out with us tonight),Refusing:,_,Reason:,_(must),4.,Inviting:,_,_ (would like to/come to my birthday party),Accepting:,_,Can you hang out with us tonight?,Sorry, Im not free.,I must study for a test.,Would you like to come to my birthday party?,Sure. Id love to.,invite,v.,邀请, The man invited my father to go fishing with him this morning.,这个男人今天上午邀请我爸爸和他一起去钓鱼。,根据句,可知“邀请某人干某事”为,invite sb. to do sth.,。,Key points, I invited him to my house yesterday.,我昨天邀请他来我家。,根据句可知,invite sb. to,后也可跟名词。, He will not come without your invitation.,没有你的请柬他是不会来的。,根据句可知,invite,的名词是,invitation,。,1. Mr. Green invited me _ (visit) his factory last week.,2. Thanks a lot for your _ (invite). But I have to stay at home to do my homework.,3.Thanks for_ (invite) me to your party.,to,visit,invitation,inviting,即时练,He _ me to come to his birthday party the day before yesterday.,A. invitation,B. invite,C. invited,D. invites,典型例题,答案：,选,C,。,解析：,句意为：前天他邀请我参加他的生日晚会。（,1,）,invite sb. to do sth.,“,邀请某人做某事”是固定用法，由时间状语确定用一般过去时，故选,C,。（,2,）,invite sb. to sp.,意为“邀请某人到某处”。,3c,Write down everything you have to do next week. Choose 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.,MON.,TUE.,WED.,THUR.,FRI.,SAT.,SUN.,REVIEW,Invitation:,Can you come to my party ?,Acceptation:,Sure, Id love to.,Yes, I d love to.,Declination:,Im sorry, I cant. I have to ,Id love to,but,I have to ,单项选择：,1. Joe _ go to the doctor. His leg is broken.,A. have to,B. can,C. has to,D. may,2. Can you help me with my English?, Sure, _.,A. Id like,B. Id love,C. Id love to,D. I have to,3. Thanks a lot for _ me _ your party.,A. invite; for,B. invite; to,C. inviting; for,D. inviting; to,4. Sorry, Im busy today. I have _ homework to do.,A. much too,B. too much,C. too many,D. many too,句型转换：,1. I have to study for a test this evening. (,改为否定句,),I _ _ _ study for a test this evening.,2. They can go to the concert. (,改为一般疑问句,),_ they _ to the concert?,dont have to,Can go,3. Can Mary go to your birthday party? (,作否定回答,), _, she _.,Sorry / No cant,情景对话：,1. - _ you go to the mall this week?,- Sure, Id love _.,2. - _ are you doing on Thursday,afternoon?,- I am going to the doctor.,Can,What,to,