【#文档大全网# 导语】以下是®文档大全网的小编为您整理的《初中英语语法-If引导的条件状语从句(讲解与练习)》,欢迎阅读!
初中英语――条件状语从句(讲解&练习)
Ⅰ条件状语从句的定义 Ⅱ条件状语从句的引导词 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, we'll 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 如果没有水会怎样 引导的条件状语从句
unless的意思是如果不,除非。可与if...not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。 :
/so long as引导的条件状语从句 as /so long as意思是“只要”
So long as you're happy,i will be happy. 只要你高兴,我就高兴。
¥
条件句 从句
主句
Ⅲ条件状语从句的种类 Ⅳ条件状语从句的时态原则
一般将来时
真实
一般现在时
情态动词+动原
祈使句
一般过去时
非真实
|
。
would/could+动原
be动词用(were)
注意 :
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
( ) you _____ to the party, you’ll have a great time.
A. will go B. went C. go D. going
( )2. 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
( )3. – What are you going to do tomorrow
--We’ll go to the library tomorrow if it ___.
A. isn’t rain B. rain C. won’t rain D. doesn’t rain ( )4. What will you do if you _____ to the old folk’s home
A. go B. went C. going D. will go
( )5.I’ll give the book to him if he ___ here next Sunday.
A. will come B. comes C. is coming D. came
《
Ⅱ.用所给词的适当形式填空
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. If Marcia _____________(live) alone, she ___________________( keep) a pet parrot.
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