内容正文:
高考英语
连词及状语从句
高频考点复习
属性
连接词
典型例句
并列关系
and,not only... but also,neither...nor...
Their car broke down halfway and they had to stay in a small inn for the night.
选择关系
or,either...or...,otherwise,or else
Either you are mad,or I am.
转折关系
but,yet,still,however,while,when
Mary was a nice girl,but she had one shortcoming.
因果关系
for,so,thus,therefore
Someone is coming,for the dog is barking.
(2)or,either...or...连接并列句表示选择意义。如:
The children can go with us, or they can stay in.(选择)
孩子们可以跟我们一起去,也可以留下。
Be careful,or you will break your neck.
(否定条件)
小心点,否则你会折断脖子的。
一、时间状语从句
1.when,while与as引导的时间状语从句
连词
从句谓语动词
用法
when
延续性动词或非延续性动词
从句的动作和主句的动作可以同时发生,也可以先后发生
while
延续性动词
从句的动作与主句的动作同时发生
as
延续性动词
强调主从句动作相伴发生,可译为“一边……一边……;随着”
Metals expand when they are heated.
金属受热时膨胀。
While /When I was reading,he came in.
我正在看书时,他进来了。
The students sang as they walked.
学生们边走边唱。
2.before与since引导的时间状语从句
(1)before与since的常用句式
连词
词义
常用句式
before
在……之前;还未……就……;……才……;趁……;还没来得及……
(1)It will be+一段时间+before...“过……(时间)才……”
(2