英语九年级【知识精讲】8.动词时态(10)主将从现(16张PPT)

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英语九年级【知识精讲】8.动词时态(10)主将从现(16张PPT)

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(共16张PPT)
【知识精讲】主将从现
初三 英语
发布课文朗读任务
(任务-发布任务-自定义任务)
1. 什么是“主将从现”?
2. “主将从现”适用于什么样的从句中?
3. “主将从现” 如何运用?
适用对象:在主从复合句
代表意义:
主:主句 主将:主句用一般将来时
从:从句 从现:从句用一般现在时
如:If you don’t do your homework, the teacher will scold you.
如果你不做作业,老师会批评你。
适用范围:条件状语从句 时间状语从句
如:When I grow up, I will be a nurse and look after patients.
If he has time, he will come tomorrow.
第一种用法:当某事发生的可能性较大时
1. 主句是一般将来时,从句常用一般现在时。
如:If he has time, he will come tomorrow.
2. 主句是祈使句,从句常用一般现在时。
如: Come and see me if you have time.
3. 主句是含有情态动词的一般现在时,从句常用一般现在时。
如: If she finishes early, she can come back early.
“主将从现”在条件状语从句中的应用
第二种用法:虚拟语气
表示不可实现的条件或根本不可能存在或虚拟、假设的条件,从句多用一般过去时或过去完成时。
如:If I were you, I would invite him to the party.
I would have arrived much earlier if I had not been caught in the traffic.
“主将从现”在条件状语从句中的应用
除if之外,其他连词也可以引导条件状语从句:
unless(除非)=if not, as long as(只要), on condition that...
如:You will fail to arrive there in time unless you start earlier.
You can go out, as long as you promise to be back before 11 o'clock.
I’ll come on condition (that) she is invited too.
“主将从现”在条件状语从句中的应用
常见的时间状语从句的连词有:as soon as, when, while, as, until, before, after...
如:When I grow up, I’ll be a nurse and look after patients.
It will be four days before they come back.
As soon as I reach Canada, I will ring you up.
“主将从现”在时间状语从句中的应用
(1)主将:一般将来时(过去将来时)
从现:一般现在时(一般过去时)
(2)主将:将来进行时,将来完成时,将来完成进行时
从现:现在进行时,现在完成时,现在完成进行时
初级内容
二级内容
He said that he would have another try if he had the chance.
If the snow has completely stopped, we will be playing with snow outside.
如果雪能够完全停下来,我们将正在户外玩雪!
If it is snowing, we will have been walking in the snow for more than two hours.
如果天一直在下雪,我们将在雪地里走了两个多小时了。
适用“主将从现”的其他从句
让步状语从句:
如:Although I'm only a child, I'll try my best to help you.
Whether you like it or not, you will have to do it.
单项选择
I will stay at home and read books if it ________ heavily tomorrow.
A. snow
B. will snow
C. snows
D. is snowing
答案:C
单项选择
I will stay at home and read books if it ________ heavily tomorrow.
A. snow
B. will snow
C. snows
D. is snowing
单项选择
Peter doesn’t tell me when he _______. I’ll telephone you as soon as he ______.
A. will come, comes
B. will come, will come
C. comes, will come
D. comes, comes
答案:A
单项选择
Peter doesn’t tell me when he _______. I’ll telephone you as soon as he ______.
A. will come, comes
B. will come, will come
C. comes, will come
D. comes, comes

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