八年级 if 引导的条件状语从句

If I 6have a lot of money, I will buy a big house.
从句一般现在时
主句一般将来时
If you go to the party, you’ll have a great time!
从句一般现在时
主句一般将来时
We’ll go to the Great Wall if it doesn’t rain tomorrow.
As long as you get up early, you will catch the bus.
课堂小练习
16
用括号里所给单词的正确形式填空。
1. You won’t be nervous if you ____d_o__(do) enough
exercise.
2. As long as she _f_in_i_s_h_e_s__(finish) work early, she can
B. won’t succeed D. fail
条件状语从句的引导词
14
if 如果，要是
引导词
unless 如果不，除非
as long as 只要
Yo1u5 won’t pass the exam, unless you work hard.
=You won’t pass the exam, if you don’t work hard.
主句一般将来时
从句一般现在时
If you fail in the exam, you will let him down.
从句一般现在时
主句一般将来时
If I am famous, I will travel all over the world.
从句一般现在时
主句一般将来时
趁7 热打铁：
1. I will buy a computer if I ___h_a_v_e___(have)
1、复习讲义上条件状语从句。 2、完成关于条件状语从句的练习题。
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Thank you！
主句
You should try it yourself
主句
if you want to know how deep the
river is.
从句
4
If 引导的 条件状语从句
5
If you jump,
从句
I will jump.
主句
If you jump,
从句
I won’t jump.
主句
一、你能找出下列句子的主句和从句吗？ 并指出主句和从句分别是什么时态。
go home.
3. Unless it ____is_____(be) cold, tomorrow, I will wear
my skirt.
两点注意
17
1、条件状语从句主句将来时，用 will, 不用be going to
2、if 表示“是否”时，为宾语从句， 不是条件状语从句。
18 课后作业
3、If it stops raining, we can go outside. 主句含有情态动词
中11 考链接：
1. You will see many aunts dancing together on
the square if it __A___ in the evening.（2016连
enough money.
2. I’m sure if he ___g_o_e_s___(go) to the party, he
will have a great time.
3. If it ___r_a__in__s_(rain), we will stay at home.
8
In politics, if you want someone to make a speech, ask a man;
if you want something done, ask a woman.
主句为祈使句
主句为祈使句
二、观察一下以下句子中主句有什么特点呢
9
1、Don’t play basketball if you don’t finish your homework.
主句为祈使句 2、Put up your hands if you have any questions.
1
If you go into the river, you will be drowned.
You should try it yourself if you want to know how deep the river is.
3If you go into the river,
从句
you will be drowned.
云港中考）
A. doesn’t rain C. will rain
B. rains D. won’t rain
百度文库
12
2. We will go to Tian’anmen Square to watch the
raising of national flag if it ____C____ tomorrow.
主句为祈使句 3、If he comes back, please let me know.
主句为祈使句
三、以下句子中主句又有什么特点呢
10
1、If you feel hungry ,you should eat something. 主句含有情态动词
2、He can go home if he finishes his homework. 主句含有情态动词
（2016湖北孝感中考）
A.will rain
B. rains
C. doesn’t rain
D. won’t rain
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3. My parents are always worried about what
will happen if I ___D__. (2016山东青岛中考）
A.succeed C. will fail