内容正文:
状语从句
1.状语概念: 状语修饰动词、形容词、副词或全句,说明方式、因果、条件、时间、地点、让步、方向、程度、目的等。
2.可以作状语的成分:
The boy really needs a pen. 副词
He is walking on the street. 介词短语
He sits there, asking for a pen. 非谓语doing
The boy needs a pen to do his homework. 非谓语to do
When he came in, his mother was cooking. 从句
3.状语从句 概念:是指句子用作状语时,起副词作用的句子。状语从句中的从句可以修饰谓语、非谓语动词、定语、状语或整个句子。
4.状语从句的实质与分类
用不同的连词将几个分句连接起来,表达分句之间特定的逻辑关系。
反过来,我们要想表达分句之间不同的逻辑关系,就要选择不同的连词。
看下面句子:
I arrived home.
It began to rain.
看下面句子:
He will not go to the cinema
He is very busy.
分类:根据不同的逻辑关系,我们把状语从句分为9种。
时间状语从句, 地点状语从句, 原因状语从句,
条件状语从句, 方式状语从句, 让步状语从句,
比较状语从句, 结果状语从句, 目的状语从句。
5.状语从句分类讲解
状语从句
时间状从
when
1.当(短暂性动词和延续性动词都可以)
I will tell her about it when I see her.
2.突然性,通常主句是be doing
或 be about to 或 had just done
We are having class when a stranger comes in.
He was about to go out when the headmaster came in.
He had just finished the work when the doorbell rang.
while
1.当,在…期间,往往指一段时间(只能延续性动词)
While we were talking,