内容正文:
状语从句
adverbial clause
by Yolanda.Cao
什么是状语?
① I learn English .
② I learn English everyday .
③ I will learn English when I finish my work .
状语是为结构已经完整的句子
(主+谓+宾)添补信息。
(时间/地点/原因/条件/目的等)
主 谓 宾齐全
结构完整的简单句.
表明时间
状语
词或词组
句子
表明时间
状语
由一个句子充当状语成分,这个句子就是状语从句,通常由一个连词或一个起连词作用的词组引导。
分类:
时间状语从句
让步状语从句 地点状语从句
方式状语从句
结果状语从句
目的状语从句
原因状语从句
条件状语从句 比较状语从句
by Yolanda.Cao
①时间状语从句
when / while / as (当…时)
not … until (直到…才), till (直到…)
before (在…之前), after (在…之后)
every time / each time (每次), by the time (到…的时候),
as soon as / no sooner … than / hardly … when /
the moment / the minute /(一…就…)
since (自从…以来)
引导词
by Yolanda.Cao
when既可以表示时间点又可以表示时间段
引导的从句谓语动词延续性动词/短暂性动词都可
when
while 表示时间段和对比转折
引导的从句谓语动词只能用延续性动词
while
as
as 强调两个动作同时发生
by Yolanda.Cao
When he came back , his brother was making a model plane .
当他回来时,他的弟弟正在做飞机模型。
My mom was cooking when / while I was doing my homework .
当我做作业时,我妈正在做饭。
As they walked , they talked happily .
他们一边走,一边高兴地交谈着。
短暂性动词
延续性动词
by Yolanda.Cao
until / till (直到…)
主句谓语延续性动词,主句从句都用肯定式
not… until …(直到…才…)
主句谓语非延续性动词,主句否定从句肯定
I worked until / till midnight yesterday .
昨天我一直工作到深夜。
I won ' t go to bed until I finish my homework .
直到写完作业我才会上床睡觉。
by Yolanda.Cao
Before he got to the shop , it had closed .
在他到商店之前,商店就已经关门了。
The bell rang after we finished the work .
我们完成工作后,铃声响了。
Each time I hear that song , I feel very happy .
每当听到那首歌,我都会感到很开心。
I will write to you as soon as I get there .
我一到那儿就给你写信。
Hardly had I reached home when it began to rain .
我刚到家就开始下雨了。
I have lived here since I was six years old .
自从我六岁的时候我就住在这儿了。
It is eight years since I became an English teacher .
我成为一位英语老师已经有八年了。
主语+ have / has done + since 从句(一般过去时)
It is +时间段+ since 从句(一般过去时)
by Yolanda.Cao
②条件状语从句
if (如果)
unless (除非,如果不)
as / so long as (只要)
引导词
If it rains tomorrow , I will stay at home .
如果明天下雨的话,我将会待在家里。
We will climb the mountain tomorrow unless it rains .
除非下雨,否则明天我们将去爬