2022年if引导的条件状语从句归纳总结习题共页

1、if 引导的条件状语从句 课本链接 If you do, you ll be sorry. Unit 5, Section A 定义 :if 引导的条件状语从句表示假如从句的动作发生,主句的动作就（不）会发生； 句子结构 if 引导的条件状语从句位置灵敏,可直接放在主句后面,也可以放在句首；放在句首时,从句后面 要用逗号和主句隔开；如： I llgo to seeyou if I have time如. 果有时间,我就去看 你； If it rains tomorrow, we ll stay a如t h果o明 me天. 下雨,我们就呆在家 里； 时态呼应 在复合句中： 当主句是一般现在时或是

2、一般将来时时；（ 2）当主句是祈使句时；（ 3）当主句含 有情态动词时, if 引导的条件状语从句通常用一般现在时； 用 法 例 句 主句为一般将来时态, if 从句用一般 We will stay at home if it rains tomorrow. 现在时态； （主将从现） 假如明天下雨,我将要呆在家； 主句中含有情态动词, if 从句用一般现在 If you finish your homework, you can go home 时态； （主情从现）如： now. 假如你做完了作业,你现在可以回家了； may/might/can/could/must/should/would

3、主句为祈使句, if 从句用一般现在时态； Don t jump into the river if you feel very hot. 假如 （主祈从现） 你感到很热,不要跳入河里； 玩儿刀是危 It s dangerous if you play with the knife. 主句为一般现在时时态, if 从句用一般现在 时态； （主现从现） 险的； 如： If she doesn t come, shewillbe so如rr果y.她不来,她会遗憾 的； Have a good rest if you are tired. 假如累了,你就好好休息一下； We must study h

4、ard if we want to pass the final exam.假如想通过期末考试,我们必需努力学习； 同义句转换 1. 用“祈使句 and / or 一般将来时的句子 ”转换；如： If you work hard, you llpass the exameaWsiolyr.k hard,andyou ll pass the exam easily. 努力学习,你将很简洁通过考试； If you don t hurry up, you llmissthHeutrraryinu. p, oryou ll miss the train. 1第 1 页,共 3 页快点儿,否就你就赶不上

5、火车了； 2. 用含介词 with 或 without 的介词短语转换；如： If there is no water, fish can Fisht lcivaen. t livewithoutwat离er 开水,鱼不能生存； 【边学边做】 1. 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; is 2. The students have a sports meeting this w

6、eekend if it . A. won t; rains B. will; rains C. won t; will rain D. are going to; is going to 3. If you to the party, you ll have a great time. A. will go B. went C. go D. going 4.-What are you going to do tomorrow. -We ll go to the library tomorrow if it . A. isn t raiBn. rainC. won t rainD. doesn

7、 t rain 5. If I eat food, I ll be very fat. A. too many B. many too C. too much D. much too 6. I ll give the book to him if he here next Sunday. A. will come B. comes C. is coming D. came 7. Your teacher will be unhappy if you to school late. A. come B. will come C. are coming D. came 8. I don t kno

8、w if he . If he , please let me know. A. comes, comes B. will come, will come C. will come, comes D. comes, will come 9. If she here tomorrow, I will tell you. A. comes B. will come C. come D. came 2第 2 页,共 3 页10. Tom wants to know if you will have a picnic tomorrow. Yes. But if it play chess instea

9、d. A. will rain B. rained C. is raining D. rains 11. If Tom the game, well 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. What will you buy if you （ have）a lot of money. 2. If it （ not snow） tomorrow, we will feel unhappy. 3. You mustn t go to school if you（b_e） stillinbed.4. If he （be）at home at that time, he would know it. 5. Pleaseshowme the way if you_know）it. 6. You will hurt your teeth if you （eat） too much candy. 7. If you gave me a toy car, I （be）very happy.