If + 一般现在时 • ` 注意：主句用一般将来时
构成 条件从句
主句
时态 If +一般现在时 主语+shall/will+动词原
形
例句 If he comes,
he will take us to the zoo .
What will happen tomorrow ?
用
It will be sunny tomorrow.
If she is a teacher, her dream will come true.
go
it, rain, we, stay at home If it rains, we will stay at home.
go
we, have a new school, we, happy
If we have a new school, we will be happy.
if
合
并
We will have a trip tomorrow.
成
一
We will have a trip if it is sunny tomorrow. 句
If在此引导一个条件状语从句。当主句是一般将来时时， if引导的从句必须用现在时来表示将来可能发生的动作或 存在的状态。
It is going to rain tomorrow. I will stay in bed.
▼
he ,come, next weekend, I ,tell you If he comes next weekend, I will tell you.
go
it, not rain , I, go hiking ,this afternoon If it doesn’t rain, I will go hiking this afternoon.
