(共27张PPT)
If
If You Are Happy
If you're happy, ________________.
If you’re angry, ________________.
If you’re scared, _______________.
clap your hands
stomp your feet
say “Oh no”
If引导的条件状语从句
If Condition Adverbial Clause
Learning objectives 学 习 目 标
一、了解if条件状语从句的定义
二、学习if条件状语从句句子结构，并正确运用
三、掌握if条件状语从句主从句的时态关系
一、if 条件状语从句的定义
If it rains tomorrow, we will stay at home.
If I have time, I will go to see you.
如果我有时间，我就去看你。
如果明天下雨，我们就呆在家里。
观察领悟
If 意为______，由它引导的句子表示某事发生需要的_____，在句子中充当状语，称之为_________从句。
如果
条件
条件状语
一、if条件状语从句的定义
二、主从句位置关系
辨析主句和从句
If she doesn’t come, she will be sorry.
You will miss the bus if you don’t hurry up.
从句
主句
从句
主句
If he comes next Sunday, please call me.
主句
从句
if条件状语从句:即跟在if后的句子就是条件状语从句
小结：if 条件状语从句位置 _________，可放前也可放后
主句在前，主从句间______(有/无)逗号；
从句在前，主从句间______(有/无)逗号。
简记为：_________________________________
有
无
观察领悟
If you study hard , you will get good grades.
You will get good grades if you study hard.
主句
从句
主从无逗，从主有逗.
二、主从句位置关系
主句
从句
灵活
三、主从句时态关系
If it doesn’t rain, I will stay at home.
If she has free time, she will go shopping.
观察领悟1
时态结论1:
主句用_________, if从句用__________,即__________
一般将来时
一般现在时
主将从现
从句
主句
一般现在时
一般将来时
If you are hungry, you can eat an apple.
If you feel tired, you should have a rest.
时态结论2：
主句有_______，if从句用___________，即_____________
一般现在时
情态V.
观察领悟2
主情从现
从句
主句
含有情态动词
一般现在时
Have a good rest if you are tired.
Don’t wait for me if I am late.
从句
主句
一般现在时
祈使句
观察领悟3
时态结论3：
主句为_______，if从句用___________，即____________
一般现在时
祈使句
主祈从现
三、主从句时态关系
结论 主句时态 if从句时态
主将从现
主情从现
主祈从现
一般将来时
一般现在时
一般现在时
一般现在时
有情V
祈使句
Competition
VS
① I, be free
will, play computer games
① it, is , sunny
will, go shopping
② he, eat too much,
must, be fat
② you, feel tired,
can, have a rest
③ you, want to cry
cry on my shoulder
③ you, be happy,
clap your hands
B: If I am free, I will play computer games.
G: If it is sunny, I will go shopping tomorrow.
= I will play computer games if I am free.
= I will go shopping tomorrow if it is sunny.
①
I, be free
will, play computer games
it, is , sunny
will, go shopping
B: If he eats too much, he must be fat.
G: If you feel tired, you can have a rest.
②
= He must be fat if he eats too much.
=You can have a rest if you feel tired.
he, eat too much,
must, be fat
you, feel tired,
can, have a rest
B: If you want to cry, cry on my shoulder.
G: If you are happy , clap your hands.
③
=Cry on my shoulder if you want to cry.
= Clap your hands, if you are happy.
you, want to cry
cry on my shoulder
you, be happy,
clap your hands
Sum up
Homework
Review what you have learned today.
Finish the exercises about “if” clause.
THANK YOU
X
Thanks a lot.
Exercise time
中考链接
1. If the traffic_____ busy, Linda won’t catch the train
in one hour. (2019贵港)
A. is B. was C. will be D. has been
2. We will go camping if it _____tomorrow. (2018梧州)
A. rained B. doesn’t rain C. will rain D. won’t rain
3. If you use mobile phone while driving, you_______ by
police. (2018桂林)
A. are caught B. will catch C. will be caught
主将从现
won’t=will not
Homework
Review what you have learned today.
Finish the exercises about “if” clause.
THANK YOU
X
Thanks a lot.
