/ 让教学更有效 高效备考 | 英语学科 Unit 7 The secret of memory Section 3 Grammar分层练习 基础达标 01 能力提升 02 拓展培优 03 一、基础知识回放 语法内容 If 引导的条件状语从句，表示可能的结果 （主将从现） 考题呈现1：请用横线划出一下句子中的条件状语从句： 1.If you work hard, you will catch up with others. 2.You will miss the train if you don’t hurry. 3.We will not go to the zoo if it rains tomorrow. 锦囊1 学会区别主句和if引导的条件状语从句：当条件状语从句位于主句之前时，从句和主句之间需用 _____（标点符号）隔开；当从句位于主句之后时，则不需要。 考题呈现2：单项选择 1.I’ll go swimming with you if I _____ free tomorrow. A. will be B. shall be C. was D. am 锦囊2 if引导的条件状语从句的时态：在if引导条件状语从句中，如果主从句描述的是将来要发生的动作或事情时，主句用_____（时态），从句用_____（时态），简称_____。 注意：有同样用法的状语从句还有：_____，until和as soon as 引导的时间状语从句。 考题呈现 3：用所给词的适当形式填空： 1.Where _____ he _____ ( can see)the film if he _____ (have) time 2.If there _____(be)fewer trees, there _____( may be) more pollution. 3.He _____( can dress)more casually if he _____(not work)at weekends. 4.I _____ ( can not watch) TV until my mother agrees with me. 5. I will call you when I_____(arrive). 锦囊3 当主句中的谓语是由can, may, must等_____动词加动词原形构成时，if引导的条件状语从句可用—_____（时态）表将来，可总结为“主情从现”. If 引导的条件状语从句，表示必然的结果 (主现从现) 考点呈现4 The ice_____ into water if you_____ it. A. will turn, heat B. will turn; will heat C. turns; heat D. turns; will heat 2. If you _____any trouble,_____ me know. A. have, let B. will have, let C. have, will let D. will have, will let 锦囊4 当从句中的动作发生，主句的动作必然发生时，主句用_____（时态），从句用_____（时态），简称“主现从现”。还有“主祈从现” Unless 引导的条件状语从句 锦囊5 unless = if... not，除非；如果不 1.Unless you start right now, you will not get there in time. (同义改写) 2.You will get a toothache if you do not brush your teeth every day. (同义改写) 二、单项选择。 1. Our business won’t improve ____ we offer better service to our customers. A. because B. unless C. after D. since 2.—Let’s go climbing if it_____ this Saturday. — Good idea. But nobody knows if it _____ . A. is fine; rains B. is fine; will rain C. will be fine; rains D. will be fine; will rain 3. If you take the fish out the water, it _____. A. dies B. will die C. died D. is dying If you _____ to join an educational exchange, you must apply for it first. A. want B. wanted C. wants D. wanting 5 .In hot weather, food goes bad easily _____ it is kept in the fridge. A. because B. if C. unless D. since 6. If you heat ice, it_____ to water. A. will turn B. turn C. turns D. turning 7. They ____ the Great Wall unless it_____ . A. will visit; will rain B. will visit; rains C. visit; will rain D. visit; rains 8. If you want to have a chat, _____ me up A. calling B. call C. to call D. will call 9. I _____ her the answer if she _____ now. A. can tell; will ask B. will t ... ...
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