初中条件状语从句-精讲和练习含答案

1、初中英语：条件状语从句一.条件状语从句的概念条件状语从句,即在某种条件下,一件事情可能发生.在英语中由连接词if或unless等引导的状语从句叫做条件状语从句.条件是指某一件事情实现之后状语从句中,一件事 情主句才能发生,通常译作假设,只要,如果 等意思.条件状语从句中,主从句的时态要遵循 生将从现的原那么.即,主句是将来时态时,从句用一般现在时代替将来时态.条件状语从句的引导词1.If conj .如果,假设If you ask him , he will help you .如果你请他帮助,他会帮你的.If you fail in the exam , you will let him d

2、own .如果你测试不及格,你会让他失望的.2. unless conj.除非,假设不,除非在的时候 (if .not.)You will fail to arrive there in time unless you start earlier.如果你不早点动身,你就不能及时赶到那儿.Unless it rains, the game will be played.除非下雨,比赛将照常进行.3. so/as long as conj.只要You may borrow my book as long as you keep it clean.只要你保持书的清洁,你就可以把我的书借去.三.关丁条

3、件句的时态,常见的有以下三种情况：1、条件状语从句的主句是一般将来时,那么从句常常用一般现在时.When I grow up, I ' ll be a nurse and look after patients.我长大后要当一名护士,照顾病人.2、如果主句是祈使句,那么从句通常要用一般现在时.If you want to have a chat ,call me up.如果你想聊天,打我 .3、如果主句是含有情态动词时,根据需要从句多用一般现在时.You should be quiet when you are in the reading room.在阅览室时应保持安静.四.知识拓展

4、1在以when, before, as soon as引导的时间状语从句,也适用生将从现"原那么,即如果主句是一般将来时,从句那么用一般现在时 .I'll tell her the good news when she comes back.当她回来的时候,我将把这个好消息告诉她.she will give you a call as soon as she returns.她一回来就会给你 .2.If条件句的同义句：祈使句,and /or+将来时态的陈述句.Work hard ,and you will make great progress.=If you work ha

5、rd,you will make great progress.如果你努力学习,你才会取得大的进步.Hurry up, or you will be late.= If you don ' t hurry up.you will be late.如果你不,快点,你就要退到了.条件状语从句练习精讲(含答案)I .单项选择1. If you to the party, you' ll have a great time.A. will go B. went C. go D. going2. It will be a long time Peter his work.A. since

6、, has finished B. after, finishes C. when, will finish D. before, finishes.3. What will father us from Japan?A. take B. bring C. carry D. make4. Weifang is famous kitesA. for B. to C. on D. with5. I her the answer if she me.A. can tell, will ask B. will tell, will ask C. would tell, ask D. will tell

7、, asks6. - What are you going to do tomorrow?-We ll go to the library tomorrow if it.A. isn ' t raiBi. rain C. won ' t rainD. doesn ' t rain7. 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 co

8、me8. What will you do if yo u to the old folk ' s home visit?A. go B. went C. going D. will go9. If I eat food, I' ll be very fat.A. too many B. many too C. too much D. much too10. I ' ll give the book to him if he here next Sunday.A. will come B. comes C. is coming D. came11. There an E

9、nglish film in our school tomorrow.A. is going to have B. will have C. is going to be D. has12. Could you tell us where ?A. will the next Olympic Games heldC. would the next Olympic Games be held13. When my mother returned last night, IB. the next Olympic Games will be heldD. the next Olympic Games

10、would be held a book.A. read B. am reading C. was reading D. am going to read14. What you when it began to rain?A. do, do B. were, doing C. are, doingD. did, do15. I ' ll wake you up when he back.A. will B. is going to come C. comes D. comeAnswers : 1-5 CDBAD 6-10 DAACB 11-15 CBCBC二、用所给词的适当形式填空1

11、. 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 s

12、tyle.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(visit) 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.

13、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.Answers :1 feel, will have2 will seehas3 are, will be4 will dresses,doesn &

14、#39; t work5 lives, will keep6 will buy, is7 will fight, argue8 will have,need9 will send, visits10 says, will feel11 will go, doesn't rain12 Will have is13 will writes,gets14 gets, won ' t15 will major,passesIII完成句子1.如果他到得晚了,会发生什么事情Whatif helate?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

15、视太久了,他的父母会不快乐.If he TV too long, 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,就会上学退到的.Sheif she7. 如果他没有空,他不会帮助你的.If he, he you.8. 如果Tom测试不及格,他就没有时机上高中了.Tom have the to go to the high school if he

16、the exams.9. 如果这个男孩打烂窗户,屋主会对他生气.If the boy, the house owner.10. 如果明天不下雨,我就出去野餐. Answers1. was happened, came late? 2 work hard, will get , success. 3. watch, will be4 will come, hold, for5 doesn ' t rainwill, with 6 will be late for school, sleeps late7 isn't free, won' t help8 won '

17、 t chance fails 9 breaks the window , will be angry at him10. If it doesn ' t rain tomorrow, I will go out to have a picnic.I. If you feel tired, you should have to have a rest.2. Where has he seen the film if he has time?3. If there are fewer trees, there will be more pollution.4. He will dress

18、 more casually if he doesn' t work on weekends.5. If Marcia lives alone, she should keep) a pet parrot.6. Lana should buy a new dress if the old one is out of style.7. The twins will fight if they argue.8. I will have a bake sale if I need money for education.9. Peter will send me a beautiful so

19、uvenir if he tours Spain.10. If Mr Green says I am hard- working, my parents will feel glad.II. I will go to the beach if it doesn ' t rain this week.12. Will they have a match if the P.E. teacher is busy?13. He will write a letter to his grandparents if he gets his report card this week.14. If she gets up late, she won't catch the early bus.15. Peter will major in English if he passes the exams in Peking University.Translate1. 如果他到得晚了会发生什么事情2. 如果努力学习,你就会取得好成绩.3. 他如果看电视太久了,他的父母会不快乐.4. 如果我们为他组织生日聚会,大家都会来的.5. 如果明天不下雨,我会和你一起去公园的.6. 如果她睡过头了,就会旅游退到的.7. 如