河北省南宫市九年级英语全册Unit8ItmustbelongtoCarla（第4课时）学案（无答案）（新版）人教新目标版Unit 8 It must belong to Carla第四课时 Section B (2c-self check)Ⅰ 词汇mystery*句型1. I’m still waiting for the bus,so I must be a bit late for the party.重点难点1. To review the important points.2. To practice writing skill.一、完成下列单词和短语的翻译：1. 奥秘_________ 2.其他的_________3. 和…相似_________ 4.阻止…__________二.填空1. We now know what was _________(发生) in the neighborhood.2.The sweater ________(一定是)Carla’s,she is the only one who wears such colorful clothes.3.I like________(弹钢琴) .语法精析情态动词的用法归纳情态动词有can (could), may (might), must, have to, shall (should, will (would), dare (dared), need (needed), ought to等。
情态动词无人称和数的变化；不能单独使用，必须与其后的动词原形构成谓语一、 can, could1) 表示能力（体力、知识、技能）Can you lift this heavy box?（体力）Mary can speak three languages.（知识）Can you skate?（技能）此时可用be able to代替Can只有一般现在时和一般过去式；而be able to则有更多的时态I’ll not be able to come this afternoon.当表示“经过努力才得以做成功某事”时应用be able to，不能用Can如：He was able to go to the party yesterday evening in spite of the heavy rain.2) 表示请求和允许Can I go now? ----- Yes, you can. / No, you can’t. 此时可与may互换在疑问句中还可用could,might代替，不是过去式，只是语气更委婉，不能用于肯定句和答语中 Could I come to see you tomorrow? ---- Yes, you can. ( No, I’m afraid not. )3) 表示客观可能性（客观原因形成的能力）。
They’ve changed the timetable, so we can go by bus instead.This hall can hold 500 people at least.4) 表示推测（惊讶、怀疑、不相信的态度），用于疑问句、否定句和感叹句中Can this be true?This can’t be done by him.How can this be true?二、 may, might1) 表示请求和允许might比 may语气更委婉，而不是过去式否定回答时可用can’t或mustn’t，表示“不可以，禁止”Might/ May I smoke in this room? ---- No, you mustn’t.---- May/Might I take this book out of the room?---- Yes, you can. (No, you can’t / mustn’t. )用May I...？征徇对方许可时比较正式和客气，而用Can I...？在口语中更常见2）用于祈使句，表示祝愿May you succeed!3) 表示推测、可能性（不用于疑问句）。
might不是过去式，它所表示的可能性比may小1．He may /might be very busy now.2．Your mother may /might not know the truth.三、 must, have to1) 表示必须、必要You must come in time.在回答引出的问句时，如果是否定的，不能用mustn’t（禁止，不准），而用needn’t, don’t have to（不必）.--- Must we hand in our exercise books today?---- Yes, you must.---- No, you don’t have to / you needn’t.2) must是说话人的主观看法， 而have to则强调客观需要Must只有一般现在时， have to 有更多的时态形式1．The play isn’t interesting, I really must go now.2．I had to work when I was your age.3) 表示推测、可能性（只用于肯定的陈述句）1． You’re Tom’s good friend, so you must know what he likes best.2． Your mother must be waiting for you now.四、must be\ may be \might be\could be\ can’t be的用法。
must be语气强硬的，“必须、一定”之意 may be\might be\could be语气不确定，“可能”之意 can't be语气偏强硬，“不可能”之意.1 -Must we do it now ? No , you______. A .won’t B .needn’t C .can’t D .don’t2 He _______at home,I’m not sure. A .may B. can’t be C .may be D. must be3 You ____to the meeting this afternoon if you have something important to do. A needn’t to come B. don’t need come C. don’t need coming D .needn’t come4 “May I pick a flower in the garden?” “____.” A No, you needn’t B Not, please C. No, you mustn’t D No, you won’t5 You’d better ____late again. A don’t B not be C. not being D won’t be 6 “Can I leave this door open at night?” “You ____better not.”A should B would C could D had7. Put on more clothes. You ____be feeling cold with only a shirt on. A can B could C would D must 8 I thought you____ like something to read, so I have brought you some books.A may B might C could D must9 –I saw Linda in the supermarket. -It_______her,she has gone to Shenzhen. A .should be B .may be C .must be D .can’t be10 The plant is dead. I ____it more water. A will gave B would have given C must give D should have given11 It’s freezing outside. You ____put on your overcoat.A had better to B had better C would better D would better to12 You ____ return the book now. You can keep it till next week if you like. A can’t B mustn’t C needn’t D may not13 Where is my pen? I ____ it.A might lose B would have lost C should have lost D must have lost14 I didn’t hear the phone. I ____ asleep.A must be B must have been C should be D should have been15 He ____ you more help, even though he was very busy. A might have given B might given C may have given D may give16 A computer ____ think for itself; it must be told what to do. A can’t B couldn’t C may not D might not17--Could I borrow your dictionary? -- Yes, of course you ____. A .might B. will C. can D. should9。