(共29张PPT)
状语从句
定义
01
定义:句子用作状语,起副词作用。
在高考中的主要考点是状语从句的“引导词”。
知识梳理
02
01
知识梳理
分类(9种)
03
1.I love you you love me.
2.I love you you love me.
3.I love you you love me.
4.I love you you love me.
5.I love you you love me.
when
时间
where
because
so
as
地点
原因
结果
方式
6.I love you you love me.
7.I love you you love me.
8.I won't love you you love me.
9.I love you you love me.
in order that
目的
if
even if
more than
条件
让步
比较
时间状语从句
1.when/whenever 当……时候/无论什么时候
When I came into the room .he was writing a letter.
We shall go there whenever we are free.
2.when 正在这时
I was walking along the street when suddenly someone touched me on the shoulder from behind.
when
表示“当……时候”后必须接延续性动词或状态
While it was raining ,they went out.
I arrived while he was away.
while
表示“一边……一边”或者“随着”
He hurried home, looking behind as he went .
as
总结:
before
现在完成时 __________________________
现在完成进行时 __________________________ ______
一般过去时
since
since:“自……以来到现在”
主句常用现在完成时,或现在完成进行时
We waited till( until)he came back
我一直等到他回来
拓展:not until
若主句谓语动词为
瞬时动词,则要
用否定形式。
until/till 前面一定是延续性动词,一般情况可替换,till不放句首。
A until B=A事件一直延续到B出现,就终止
until、till
表示“一……就”的形式
I will go there directly I have finished my breakfast.
The moment I heard the news, I hastened to the spot.
As soon as I reach Canada, I will ring you up.
表示“一……就”的形式
其他连接词
by the time
“一到……(时间)就截止”
The other students had finished cleaning by the time I arrived
注意:在一般情况下,
若从句为ed,则主用had done
若从句为v,则主用shall/will have done
By the time you come here tomorrow, I will have finished this work.
其他连接词
1.each time, every time 和whenever
Whenever that man says“To tell the truth”, I suspect that he's about to tell a lie
I will fight against these conditions as long as there is a breath in my body!
2.as long as,so long as,通常译为“只要”
地点状语从句
由where或wherever(=no matter where)引导
1.where+从句,(there)+主句
They were good persons. Where they went, there they were warmly welcomed.
You should have put the book where you found it
2.Anywhere/ wherever+地点从句,+主句。
You can go anywhere you like.
让步状语从句
要点:由连词 though, although,while等引导.
tips:
though/althouth……but×
though/although……
yet(still)√
让步状语从句
表语或状语提前
Child as /though he was, he knew what was the right thing to do.
= Though he was a small child, he knew what was the right thing to do.
原因状语从句
because
1.I didn’t go to school yesterday because I was ill.
2. Since everybody is here, let’s begin our meeting.
3. As you are in poor health, you should not stay up late.
原因状语从句
because、since、as、for辨析
原因状语从句
because、since、as、for辨析例句
1.He is absent today ,because / for he is ill.
2.Since /As the weather is so bad, we have to delay our journey
3.He must be ill for he is absent today
4.As the weather is cold, I stay at home.(同义句)
I stay at home for the weather is cold
条件状语从句
1.连词if, unless (=if not) as long as或in case provided(that) on condition (that) 引导
时态:主将从现,主情从现,主祈从现。
1.They are going to have a picnic if it doesn’t rain next week
2.You should wash your hands if you want to have dinner.
3.Wash your hands,if you want to have dinner
其他
1.目的状语
that,so that,in order that
2.结果状语
(so)that,such that ,so many/much that
3.比较状语
as……as,not so……as,more than,no more than(只不过)
the …est of
4.方式状语
as,as……so,as if ,as……though
because:表直接原因,语气强
for:表示推断,连接并列句,并只能放在主句后面
since/as表示显而易见的原因,引导的从句放主句前。
放句末,前有“,”
Thanks!