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1、精品文档初中英语一一条件状语从句（讲解&a习）I条件状语从句的定义n条件状语从句的引导词i.if引导的条件状语从句表示在某种条件下某事很可能发生。If we pay much attention to the earth, well have a better world.如果我们多关爱地球，就会拥有一个更美好的世界If it rains tomorrow, what shall we do?如果明天下雨，我们怎么办？注意：if还可以引导虚拟条件句，表示不可实现的条件，从句中多用一般过去时或 过去完成时。What would happen if there were no water ?如果没
2、有水会怎样？2 .unless引导的条件状语从句unless的意思是如果不，除非。可与ifnot互换。You will fail in English unless you work hard.你英语考试会不及格的，除非你更加努力。3 .as /so long as引导的条件状语从句as /so long as 意思是 只要“So long as youre happy,i will be happy.只要你高兴，我就高兴。出条件状语从句的种类IV条件状语从句的时态原则条件句从句主句真实一般现在时将来叫情态动词+动原祈使句非真实一般过去时would/could+ 动原be动词用（were）汪思
3、：学习if 引导的条件状语从句的用法 ，现在总结一下if条件句不一般，几个要点记心间；条件句，放在前，逗号要放句中间。条件句表真实，主将从现要遵从；条件句非真实，虚拟语气用到位。练习I.单项选择ll have a great time.()1.If you to the party, youA. will goB. wentC. goD. going()2. I her the answer if she me.A. can tell, will askB. will tell, will askC. would tell, askD. will tell, asks()3. - What a
4、re you going to do tomorrow?-We ll go to the library tomorrow if it.A. isn t rainB. rainC. wont rain D. doesn t rain()4. What will you do if you to the old folks home?A. go B. wentC. goingD. will go()5. Ill give the book to him if he here next Sunday.A. will come B. comesC. is comingD. camen.用所给词的适当
5、形式填空1.1. f 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. If Marcia(live) alone, she( keep) a pet parrot.11. Lana( buy) a new dress if the old one(be) out of style.12. The twins(fight) if they(argue).13
6、. I (have) a bake sale if I (need) money for education.14. Peter ( send) me a beautiful souvenir if he (tour) Spain.15. I (go) to the beach if it ( not rain) this week.17. they ( have) a match if the P.E. teacher (be) busy?18. If she(get) up late, she ( not catch) the early bus.m.翻译下列句子19.如果他到的晚了会发生
7、什么事情？What if he late?20. 如果努力学习，你就会取得好成绩。If you, yougood marks.21. 他如果看电视太久了，他的父母会不高兴。2欢迎下载精品文档If he TV too much, his parents unhappy.22. 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.23. 如果明天不下雨，我会和你一起去公园的。If it tomorrow, I go to the parkyou.24. 如果她睡过头了，就会旅游迟到的。She;the trip if she .25. 如果他有空，他会帮助你的。If he , he you.26. 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.3欢迎下载 。