内容正文:
Grammar
if 从句
If I get up at 7:00, I will be late.
If I am late, the teacher will be angry with me.
If the teacher is angry with me,
I will be sad.
If 引导条件状语从句
一,定义:if “如果, 假如” 它引导的句子表示某事发生所需的条件,即“在…条件下,某事才能发生”,在句子中充当状语,因此称之为条件状语从句。
If you get up late, you will be late for school.
Look and say
语法:
例句If I have enough money,
I will travel around the world
:
二.if引导的条件状语从句位置
→从句
→主句
I will travel around the world if I have enough money ..
原句可改为:
if引导的条件状语从句既可以放在句子前,
也可以放在句子后。
从句位于主句之前时,常用逗号将其与主句隔开。
结构:
__________________
if I’m ill.
I will see a doctor
Look and say
If I’m late,
_________________.
I will be punished.
位置:从句可放在主句之前或之后,但是放在主句之前须有逗号隔开
例如:We will go to the park if it _______ ______ (rain) tomorrow.
Grammar
三, 含if条件状语从句的主从复合句的时态
1. if 条件状语从句中,主句用一般将来
时,从句用___________表示将来
________原则。
doesn’t
主将从现
rain
一般现在时
It is going to rain tomorrow.
I will stay at home.
If it _____ tomorrow, I _____ _____ at ho