中考复习 if条件句(7页).doc

-中考复习 if条件句-第 7 页教 案题目（教学章节或主题）： if引导的条件状语从句授课日期：授课时间：教学重点、难点：重要性：典型例题： 1. Ask him to ring me up if you _ him. A. see B. saw C. would see D. will see2. If people _ polluting the air, animals and plants will die soon. A. dont stop B. didnt stop C. shall not stopD. havent stopped3. Can I stay at home tomorrow?Yes, you can if it_. A. will snow B. is going to snow C. snows D. Snowed4. I dont know if he _ this afternoon. But if he _, I will tell you. A. will come; will do; B. comes; will do C. will come; does D. comes; does 5. If you had enough money, what _? A. will you buy B. would you buy C. would you have boughtD. will you have bought6. Many Chinese movie stars now have given up their Chinese nationality. If I were them, I _ that. A. shouldnt do B. didnt do C. hadnt done D. wont do7.  If there         no buying and selling of animals, there        no killing in nature.  A. is; will he     B. will be; will be    C. is; is       D. will be; is8.  Fm waiting for my friend.       , I'll go shopping alone.  A. If she comes     B. If she won't come    C. If she doesn't come 9. The students _ have a sports meeting this weekend if it _。A. wont; rains   B. will; rains  C. wont; will rain    D. are going to; is going to rain总结：本次教学评价：非常满意 较满意 一般 家长或学生签字 共 小时本节课回访记录：任课老师签字： 主任签字： 日期：讲 义 学生： 任课教师：教学内容： if条件句 If people obey the traffic rules, there will be fewer accidents. 结构：if引导的条件状语从句既可以放在句子前，也可以放在句子后。从句位于主句之前时，常用逗号将 其与主句隔开。 if:从属连词，意思是：“如果，假如，倘若” 原句可改为：There will be fewer accidents if people obey the traffic rules.时态：Ø if引导的条件状语从句，主句用一般将来时（will）,从句用一般现在时（主将从现）。 If it rains（从句）， I will stay at home. Ill go with you if you dont want to go alone（从句. Ø 如果主句是祈使句，从句要用一般现在时 Dont go and play football if you dont finish your homework. Please call me if he comes next Sunday.Ø 主句谓语中也可以含有情态动词，如：must,can,could,should等 【注意】主句谓语中也可以用had better(not)do,提建议 If you drive too fast, you may have an accident. You must stop if the traffic is red. If the traffic lights are red,you must stop and wait. 如果交通指示灯是红的，你必须停下来等一等。 If you want to lose weight,you had better take some exercise. 如果你想减肥，你最好锻炼。练习：用所给单词的正确形式填空 1. If you _ (want) to listen to music, _ (choose) a CD. 2. If you _ (buy) a new camera, _(get) a good one. 3. If the light _ (not come) on, _ (wait) for one minute. 4. If it _ (not work) , _ (wait) a minute and then _(try) again. 5. If you _ (not know) how to use the camera, _ (read) the instructions. 6. If you _(feel) tired, you _ (have) to have a rest. 7. Where _ he _(see) the film if he _(have) time? 8. If there _(be) fewer trees, there _( be) more pollution. 9. He _(dress)  more casually if he _( not work) on weekends. 10. If Marcia _(live) alone, she _( keep) a pet parrot.【拓展】 if的反义词：if.not.=unless,意思是：“如果不，除非”练习：1. I wont go there unless I hear from you.(同义句) I wont go there _ I _hear from you. 2. I wont go to the party if I am not invited. (同义句) I wont go to the party_I am invited.条件句的转换：1. 有if引导的条件状语从句的复合句中，当主句和从句的主语均为you时，可转换为“祈使句，and+简单句”或“祈使句，or+简单句” You can pass the exam if you work hard. ，and you will pass the exam. If you don't hurry up,you will be late again. Hurry up, you will be late again.2. 借助介词with 或without来转换。 If you help me, Ill finish my job soon. , Ill finish my job soon. 如果你帮我，我将很快完成我的工作。 If there is no water, fish may die. Fish may die . 如果没有水，鱼可能会死。 【注意】1. 在if引导的条件状语从句中，当主句是一般将来时时，不能够使用be going to结构，而要用will。 Ill help you with your English if I am free tomorrow. 如果明天我有空，我会帮你学英语。 2. 在if引导的条件状语从句中不能够使用some，而要用any。 If you have any questions to ask, please come to my office. 如果你有问题要问的话，请到我办公室来。1. If you _ an interesting day out, _ the Science Museum. A. want; visiting B. want; visit C. want to; visit D. wanting; visit2. If the pure water is heated to 100 centigrade degrees, it _ boil. A. is going to B. will C. would D. is toIf条件句的虚拟语气：表示说话人的愿望、假设、猜测或建议，而不表示客观存在的事实。 If I were a child, I would be happier. If he were a bird , he could fly in the big blue sky. If I had a lot of money, I would buy a villa（别墅）. 时间从句主句与现在事实相反 were/did(动词过去式）.would/could do(动词原形) would/could/should +动词原形练习：1. Mary is ill today. If she _, she _ absent from school. A. were not ill; wouldnt be B. had been ill; wouldnt have been C. had been ill; should have been D. hadnt been ill; could be2. If I knew you were coming, I _ you at the airport. A. had met B. met C. would meet D. would have met练习：1.Daina ( will go/go/goes) to Europe if she (will pass/pass/passes) the exams .2. The graduates (will teach/teach/teaches) in the poor village if the Ministry of Education (will agree/ agree/agrees) soon.3. If there (will be/ are/is) a car accident, they (will call/call/calls) 110 for help at once.4. If it (wont/dont/doesnt/ isnt) rainy, we (will take/ take/takes) walk outside.5. If a UFO (will land/land/lands) in front of me, I (will go/go/goes) in to look for the alien.6. Lana _( buy) a new dress if the old one _(be) out of style.7.The twins _(fight) if they_(argue).8. I _(have) a bake sale if I _(need) money for education.10. If Mr Green _(say) I am hard- working, my parents _( feel) glad.11.I _(go) to the beach if it_ ( not rain) this week.12. _they _( have) a match if the P.E. teacher _(be) busy?13.He _(write) a letter to his grandparents if he _(get) his report card this week.14. If she _(get) up late, she _ ( not catch) the early bus.If条件状从句练习 巩固练习姓名： 章睿 学科：英语任课老师：分数：主任签字：家长签字：一、单项选择（ ）1.If you _ to the party, youll have a great time      A. will go   B. went   C. go    D. going （ ）2.What are you going to do tomorrow? -Well go to the library tomorrow if it _.  A. isnt rain   B. rain  C. wont rain  D. doesnt rain（ ）3. What will you do if you _ to the old folks home visit?   A. go    B. went    C. going    D. will go （ ）4. If I eat _ food, Ill be very fat.      A. too many    B. many too    C. too much   D. much too （ ）5. Ill give the book to him if he _ here next Sunday.  A. will come     B. comes     C. is coming     D. came （ ）6. 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 （ ）7. Well go to the farm and help the farmers with the apple-picking if it _  tomorrow.   A. wont rain  B. will be rainy  C. doesnt rain  D. isnt raining    （ ）8. There is going to _ a sports meeting next week. If it _, well have to cancel it.    A. be, will rain    B. have, will rain     C. be, rains    （ ）9. Your teacher will be unhappy if you _ to school late.  A. come    B. will come     C. are coming      D. came     （ ）10I dont know if he _. If he _ , please let me know.  A. comes, comes     B. will come, will come  C. will come, comes    D. comes, will come （ ）11You will stay healthy _ you do more exercise, such as running and walking.       A. if      B. how      C. before     D. where （ ）12. If she         here tomorrow, I will tell you.  A. comes             B. will come          C. come        D. came （ ）13. Im waiting for my friend.       , Ill go shopping alone.   A. If she comes    B. If she doesnt come   C. If she wont come （ ）14. Tom wants to know if you will have a picnic tomorrow. Yes. But if it _, well play chess instead.  A. will rain            B. rained              C. is raining          D. rains （ ）15. If Tom _ the game, we'll give him a surprise".  A. win     B. wins      C. won          D. miming 二、用所给词的适当形式填空。 1.If you _(feel) tired, you _ (have) to have a rest. 2. Where _ he _(see) the film if he _(have) time? 3. If there _(be) fewer trees, there _( be) more pollution. 4.  He _(dress)  more casually if he _( not work) on weekends. 5. If Marcia _(live) alone, she _( keep) a pet parrot. 6. Lana _ buy) a new dress if the old one _(be) out of style. 7.The  twins _(fight) if they_(argue). 8. I _(have) a bake sale if I _(need) money for education. 9. Peter _( send) me a beautiful souvenir if he _(tour) Spain. 10. If Mr Green  _  (say) I am hard- working, my parents _( feel) glad.11.I _(go) to the beach if it_ ( not rain) this week. 12. _they _( have) a match if the P.E. teacher _(be) busy? 13.He _(write) a letter to his grandparents if he _(get) his report card this week. 14. If she _(get) up late, she _ ( not catch) the early bus. 15. Peter _(major) in English if he _(pass) the exams in Peking  University. 三 完成句子。1.如果他到的晚了会发生什么事情？What _  _ if he _ late? 2. 如果努力学习，你就会取得好成绩。If you_ _, you _ _good _. 3. 他如果看电视太久了，他的父母会不高兴。If he _ TV too much, his parents _ _unhappy. 4. 如果我们为他组织生日聚会，大家都会来的。 Everyone _   _ if we _a birthday party _ him. 5.如果明天不下雨，我会和你一起去公园的。If it _  _tomorrow, I _ go to the park _you. 6. 如果她睡过头了，就会旅游迟到的。he_  _  _  _    the trip if she _   7. 如果他有空，他会帮助你的。If he _ _  , he _ _ you. 8. 如果Tom考试不及格，他就没有机会上高中了。  Tom _have the _to go to the high school if he _the exams. 9. 你如果抄同学的作业就不能学好各门功课。  You _ _ good at all the subjects if you _ the  other students homework.  10.如果你上课睡觉，老师会生气。If you_ in class, your teacher _  _  _   直接引语变间接引语练习题：1.  “I never eat meat.” he said.   He said that _ never _ meat. 2.  “Ive found my wallet.” he said to me.   He _ me that he _ _wallet. 3.  “You must come here before five.” he said.  He said that I _ to go _ before five. 4.  “Dont tell him the news.” she said.  She told me _ _ _ him the news.  5.  “Stop making so much noise, children.” he said.   He _ the children _ _ making so much noise. 6.  “Are you interested in this?” he said.  He _ _ I was interested in _. 7.  “Do you know where she lives?” he asked.  He asked _ _ knew where she _. 8.  “Where have you been these days?” he asked.  He asked me _ _ _been _ days.  9.  He asked, “How did you find it, mother?”  He asked her mother _ _ _ found it.