Units9--10 单元语法复习学案（无答案） 人教版英语八年级上册

辅导讲义
学员编号 年 级 八年级 课时数 3课时
学员姓名 辅导科目 英 语 学科教师
授课主题 八上Units 9-10 语法知识复习
教学目的 使学生掌握情态动词的用法； 使学生掌握if引导的条件状语从句； 使学生掌握区分if引导的条件状语从句和宾语从句。
重、难点 情态动词can, should的用法，if引导的条件状语从句
授课时间 XXXX年XX月XX日 星期X XX:00-XX:00 第XX次课
教学内容
上节课复习与回顾（包含作业检查） 课程导入 本节知识点讲解 【知识点讲解一】 定义：条件状语从句，由引导词if或unless引导的状语从句叫做条件状语从句。在英文中，条件是指某一件事情实现之后（状语从句中的动作），其它事情（主句中的动作）才能发生，通常译作“假如”。 位置：在复合句中，连词if意为“如果，假如”，其引导的句子为从句，被修饰的句子为主句。从句可以放在主句前，也可以放在主句后，放主句前时，应用逗号将它与主句隔开。 Eg: If people obey the traffic rules, there will be fewer accidents. 从句 主句 时态：当谈论将来可能出现的情况时，条件状语从句用一般现在时表示将来，主句常用一般将来时。即“主将从现”。 E.g.: We’ll stay at home if it rains tomorrow. 【拓展】 主句谓语中可以含有情态动词的一般现在时，如must, can, could, should等。 E.g.: If the traffic lights are red, you must stop and wait. 主句谓语中也可以had better (not) do, 提建议 E.g.: If you want to lose weight, you had better take some exercise. 主句是祈使句 E.g.: If you are not strong enough, please don’t take part in such an activity. 【例题解析】 1. You will see many aunts dancing together on the square if it _____ in the evening. A. doesn’t rain B. rains C. will rain D. won’t rain 2. We will go to Tian’anmen Square to watch the raising of national flag if it ________ tomorrow. A. will rain B. rains C. doesn’t rain D. won’t rain 3. My parents are always worried about what will happen if I _____. A. succeeded B. won’t succeed C. will fail D. fail 【巩固练习】 1. If you ____________ to the party, you’ll have a great time. A. will go B. went C. go D. going 2. I ____________ her the answer if she ____________ me. A. can tell, will ask B. will tell, will ask C. would tell, ask D. will tell, asks 3. — What are you going to do tomorrow — We’ll go to the library tomorrow if it ___ . A. isn’t rain B. rain C. won’t rain D. doesn’t rain 4. — Do you know when he will come back tomorrow — Sorry, I don’t know. When he ____________ back, I’ll tell you. A. comes B. will come C. come D. may come 5. I’ll give the book to him if he ____________ here next Sunday. A. will come B. comes C. is coming D. came 6. There ____________ an English film in our school tomorrow. A. is going to have B. will have C. is going to be D. has 7. I’ll wake you up when he ____________back. A. will B. is going to come C. comes D. come
8. The football match will be put off if it ________.
A. will rain　 　B. rains　 　　C. rained　　　D. is rained
9. There ________ a basketball game this afternoon. A. is going to have　　 B. will be　　　　C. is going to play　 　D. will play
10. I won’t go if it ________ tomorrow.
A. rain　　 B.is raining　 　C. rains　 　 D. will rain 【本知识点小结】 【知识点讲解二】 4.if 的反义词：if...not...= unless，意思为“如果不，除非” E.g.: ①I won’t go there unless I hear from you. (同义句) I won’t go there I hear you. ② I won't go to the party if I am not invited.(同义句) I won’t go to the party I am invited. 5. if条件状语从句有时可以与其他句型进行转化： 1）当主句和从句的主语均为you时，可转换为“祈使句，＋and/or＋简单句” If you get up early，you won't be late for school. → Get up early，and you won't be late for school. → Get up early，or you will be late for school. 2）借助介词with或without进行转化。 If there is no water，we can't live. → We can't live without water. 6.if 引导的条件状语从句和宾语从句的差别： if引导的条件状语从句意为“如果……”，其时态遵循“主将从现”规则。I'll tell you about it if you come.if引导的宾语从句意为“是否……”，其时态受主句谓语动词的限制。若主句谓语动词为现在时或将来时，if引导的宾语从句要根据实际情况来恰当使用时态。I don’t know if he will help me.
【例题解析】 同义句改写，每空一词 1. Study hard, or you won’t pass the exam. If you study hard, you ________ ________ the exam. 2. Take a taxi, and you’ll catch the train. ________ you ________ a taxi, you’ll catch the train. 3. If you don’t help me, I can’t catch up with the others. I can’t catch up with the others ________ ________ ________. 4. We will be late for the meeting if we don’t be quick. We will be late for the meeting ________ ________ ________ ________. 5. If you are late, the teacher will be angry. ________ ________ late, ________ the teacher will be angry. 【巩固练习】 （ ）1. If your friend ______，I'll tell you. A. come　　B. will come C. comes D. are coming （ ）2. If you go to college，you ______a good education. A. will get B. get C. gets D. got （ ）3. I want to know if they______ tomorrow. A. come B. will come C. comes D. came （ ）4. Take enough exercise，______you'll be in good health. A. or B.so C. but D. and （ ）5. I don’t know if she ______ to the party, if she ______, I’ll tell you. A. comes, comes B. will come, will come C. comes, will come D. will come, comes 【本知识点小结】 【知识点讲解三】 定义:情态动词表示说话人对某一动作或状态的态度。 特点： 情态动词有一定的词义。 情态动词不能单独做谓语，它必须和其他动词的原形一起构成谓语。 情态动词没有人称，数的变化。 结构和意义： 1.情态动词的基本句型 肯定句： 主语+情态动词+动词原形+...... 否定句： 主语+情态动词+not+动词原形+...... 疑问句： 情态动词+主语+动词原形+...... 2. 情态动词的意义 must“必须” ； can/could“能，会” ； may/might “可以”； should“应该”； would“愿，要” ； have to“不得不” ； need“需要” 情态动词can的用法： can (could主要指过去时间 ) 表示人或物本身所具有的能力，意为“能，能够，会” = Two eyes can see more than one. / I can swim very well. 表示可能（理论上或是逻辑判断上） He can’t (couldn’t) have enough money for a new car. 表示允许： Can I have a look at your new pen He asked whether he could take the book out of the reading-room. 表示对现在动作或状态的猜测，主要用于否定句和疑问句中或感叹句中: He can’t (couldn’t) be over sixty. could表示比can更委婉客气的提出问题或陈述看法，指的是现在时间。 Can (Could) you lend me a hand 用在疑问句中，表示邀请。其答语可为接受邀请，也可为拒绝邀请，比较灵活，可根据实际情况做出礼貌回答。 -Can you come to my party Thursday -Sure, I’d love to. / I’m afraid not. I must study for my test. 情态动词should的用法：
1）表责任或义务，意为“应该”，用于各种人称。
You should be polite to your teachers. 2）表推测，意为“想必一定、照说应该、估计”等。
The film should be very good as it is starring first-class actors. 【例题解析】 ( )1.---______ you play the piano ---No, I can’t. A. Are B. Do C. Must D. Can ( )2. Lucy ______ speak English, but she______ write. A. can; can B. can’t; can't C. can; can't D. can't; must ( )3.---Can your brother play baseball ---Yes, he ______. A. is B. does C. can D. cans ( )4.---Can Jack play chess --- ______. But he wants to learn it. A. Yes, he can B. No, he can’t C. Yes, he does D. No, he doesn’t 【巩固练习】 ( )1. —Can you speak Japanese —No, I____. A. mustn't B. can't C. needn't D. may not ( )2. John___ come to see us tonight, but he isn't very sure yet. A. may B. can C. has to D. Must ( )3. —I stayed at a hotel while in New York. —Oh, did you You _______ with Barbara. A. could have stayed B. could stay C. would stay D. must have stayed ( )4.—Listen! Helen is singing in the next room. —It _____be Helen. She has gone to Beijing. A. can’t B. mustn’t C. may D. should ( )5. -Mum, may I go to see a film with my cousin -You go if you have finished your homework. A. must B. need C. should D. can 【本知识点小结】 【知识点讲解四】 may (might)的用法：
1）表允许，询问或说明一件事可不可以做，might指过去时间；但在疑问句中might也可指现在时间，语气比may更委婉。
May (Might) I ask for a photo of your baby
在回答以may引起的问句时， 肯定回答是一般可仍用may, 或Yes, please. / Certainly. /Sure. /Of course. 否定回答根据说话人的语气由强到弱分别选用: must not(mustn’t)（禁止）/ had better not（最好别）/ may not（不行） 2) may表可能,但所表示的可能性不如can所表示的那样肯定。might可以指过去时间，也可以指现在时间，但语气更加不肯定。 He may be at home. They might be having a meeting, but I’m not sure. 情态动词must（have to表示客观需要）的用法： 1）表示 “必须”（主观看法）时，用于肯定句或疑问句；用于否定句时表示“禁止”。 We must do everything step by step. You must get home before 9:00. 表示揣测。意为“想必、准是、一定”等，只用于肯定句。
He must be ill. He looks so pale. 3)must的疑问句，肯定回答用must， 否定回答用needn’t或don’t have to。 情态动词would的用法：
1）will的过去式，表示过去时间的“意志、意愿”。
They would not let him in because he was poorly dressed. I said I would do anything for you.
2）would用于现在时间，表示比较委婉地提出请求、建议或看法。
Would you like another glass of beer
情态动词need的用法： 1) need作为情态动词，主要用于否定句疑问句；作为实义动词可用于肯定句，否定句或疑问句中。 You needn’t telephone him now. 2) 回答由need引起的问句时，肯定回答一般用must，否定回答是用needn’t --Need I come --Yes, you must. 【例题解析】 ( )1.- I swim here - I’m sorry. Children swim alone here. It’s very dangerous. A. Must; can’t B. May; must C. Can; mustn’t D. Can’t; can ( )2.-Lily, you finish the letter in ten minutes - Yes, I can. A. must B. should C. need D. can ( )3. You ___ be late for school again next time. A. mustn't B. needn't C. don't have to D. don't need to ( )4. —Must I do my homework at once —No, you___. A. needn't B. mustn't C. can't D. may not ( )5. His arm is all right. He___ go and see the doctor. A. has not to B. don't have to C. haven't to D. doesn't have to 【巩固练习】 – Jack, ____ you ride a bike –Yes, I can. A. can B. may C. need D. must 2. Mr. Zhou can’t find his ID card anywhere. It be lost. A. can’t B. should C. must 3. There's an important football match today. I _______ miss it. A. may B. can't C. must D. needn't 4. —What about going swimming this afternoon —You ______ be joking! Don't you know I'm afraid of water A. may B. can C. must 5. — Dick, ________ I use your e-dictionary — Yes, sure. ________ you give it to David after you use it A. will; Would B. may; Might C. can; Could D. shall; Should 6. You _____ tell anybody about this——it’s a secret. A. can B. must C. mustn’t 7. ---Who will give us the speech on public manners ---Mr. Brown_____,but I'm not sure. A.can B. need C. must D. might 8. --Do you have any plans for this summer vacation --I'm not sure. I ___ take a trip to Taiwan. A. must B. need C. may D. should 9. —How do you usually go to school —My school is far away. I ________ take the bus to school. A. must B. might C. have to 10.You return the book now. You can keep it until next week if you like. A. have to B. can’t C. mustn’t D. needn’t 11. —__________ I complete the composition today, sir —No, you needn’t. You may ___________tomorrow morning. A. Can, hand it in B. May, hand in it C. Must, hand it in D. Need, hand in it 12. Martin was so busy ______ he old that he gave up his part-time job. A .helping B .helped C .to help D. help –Mum, ______ I visit the Movie Museum tomorrow --I’m afraid you can’t . It is closed on Monday . A. must B. may C. should D. need 14. —Must I do my homework at once —No, you___. A. needn't B. mustn't C. can't D. may not 15. His arm is all right. He___ go and see the doctor. A. has not to B. don't have to C. haven't to D. doesn't have to 【本知识点小结】 当堂检测 （一）用can, may, must, need, have to, had better的适当形式填空： 1. You ________________ return the library book on time. 2. I ______________ (not) find the way to the hospital. _______________ you show me the way 3. —________________ I finish the work right now — No, you ________________ (not). You ____________ do it later. 4. He said he ________________ (not) come tonight. 5. Her mother was ill. She ________________ stay at home and look after her. （二）按要求完成句子 6. I have to study for a test. (变为否定句) I study for a test. 7. They can go to the concert. (改为一般疑问句) they to the concert 8. Can Mary go to your birthday party (作出否定回答) , . 9. I often visit my aunt on Sundays. (用the day after tomorrow改写句子) I my aunt . 10. Joe has to go to the doctor because he has the flu. (就划线部分提问) Joe to go to the doctor 课堂总结 家庭作业 1. If you ____________ to the party, you’ll have a great time. A. will go B. went C. go D. going 2. I ____________ her the answer if she ____________ me. A. can tell, will ask B. will tell, will ask C. would tell, ask D. will tell, asks 3. — What are you going to do tomorrow — We’ll go to the library tomorrow if it ______. A. isn’t rain B. rain C. won’t rain D. doesn’t rain 4. — Do you know when he will come back tomorrow — Sorry, I don’t know. When he ____________ back, I’ll tell you. A. comes B. will come C. come D. may come 5. I’ll give the book to him if he ____________ here next Sunday. A. will come B. comes C. is coming D. came 6. There ____________ an English film in our school tomorrow. A. is going to have B. will have C. is going to be D. has 7. I’ll wake you up when he ____________back. A. will B. is going to come C. comes D. come
8. The football match will be put off if it ________.
　　A. will rain　 　B. rains　 　　C. rained　　　D. is rained
9. There ________ a basketball game this afternoon. A. is going to have　　 B. will be　　　　C. is going to play　 　D. will play
10. I won’t go if it ________ tomorrow.
　　A. rain　　 B.is raining　 　C. rains　 　 D. will rain 11.— Can you come to my party — ________. A. Yes, I can’t. B. Sorry, I can’t. C. I love it. D. No, I can. 12. — Can you go to the movies with me —Sorry, I can’t. I ________ babysit my sister. A. would like to B. can C. have to D. want to 13. —________ you go to the movies with me — Sorry, I have to look after my little sister. A. Must B. Should C. Can D. May 14. — I don’t feel well. I have a headache. — You should ________ the doctor. A. look B. watch C. go to D. look at 15.I have to ______for the math test. A. study　　　　B. studying C. learning D. studied 16.Joe______go to the doctor. His leg is broken. A. have to B. can C. has to D. may 17.Can you look at the ______ and tell me the activities A. menu B. calendar C. clock D. phone 18.—______I watch TV，Mum —Sure，but you ______finish your homework first. A. Must；needn't B. Can；may C. Can；must D. May；mustn't 19.The students are very ______ at the ______ news. A. surprised；surprising B. surprising；surprised C. surprised；surprised D. surprising；surprising 20.—My mother is ill. I have to look after her at home. —______. A. Thank you B. Oh，I don't know C. Bad luck D. I'm sorry to hear that