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八年级英语语法状语从句与宾语从句知识点专题复习及练习
一、状语概述
1、定义:修饰谓语动词或某个句子的“词,短语,句子”;
用来说明谓语动词发生的时间、地点、方式、因果、条件、让步、目的、程度等。
2、什么可以作状语:
1)副词(短语)作状语:
The boy needs a pen very much./男孩非常需要一支钢笔。(程度状语)
The boy really needs a pen./男孩真的需要一支钢笔。(程度状语)
The boy needs a pen now./Now,the boy needs a pen./男孩现在需要一支钢笔。(时间状语)
2)介词短语作状语:
In the classroom,the boy needs a pen./在教室里,男孩需要一支钢笔。(地点状语)
Before his mother,Tom is always a boy./在母亲面前,汤姆总是一个男孩子.(条件状语)
On Sundays,there is no student in the classroom./星期天,教室里没有学生.(时间状语)
3)分词(短语)作状语:
He sits there,asking for a pen./他坐在那儿要一支笔。(表示伴随状态)
Having to finish his homework,the boy needs a pen.
因为不得不完成作业,男孩需要一支笔。(原因状语)
Frightened,he sits there soundlessly./(因为)受了惊吓,他无声地坐在那儿。(原因状语)
4)不定式作状语:
The boy needs a pen to do his homework./男孩需要一支笔写家庭作业。(目的状语)
To make his dream come true,Tom becomes very interested in business.
为实现梦想,汤姆变得对商业很有兴趣.
5)句子做状语:
He had learned a little Chinese before he came to China.
在他来中国之前,他已经掌握了一些中文。
状语从句的分类
1. 时间状语从句
(1)时间状语从句常用when, as, while, before, after, since, till, until, as soon as等连词来引导。例如:
It was raining hard when we got to school yesterday.
While he was doing his homework, the telephone rang.
As he walked along the lake, he sang happily.
He had learned a little Chinese before he came to China.
After he finished middle school, he went to work in a factory.
(2)在时间状语从句里,通常不用将来时态,用现在时态表示将来的动作或状态。例如:
I’ll ring you up as soon as I get to New York.
I will tell him everything when he comes back.
He won’t believe it until he sees it with his own eyes.
(3)在带有till或until引导的时间状语从句的主从复合句里,如果主句用肯定式,其含义是“一直到……时”,谓语动词只能用延续性动词。如果主句用否定式,其含义是“直到……才……”, “在……以前不……”, 谓语动词可用瞬间动词。例如:
The young man read till the light went out.
Let’s wait until the rain stops.
We won’t start until Bob comes.
Don’t get off until the bus stops.
[Practice]
I didn’t know he came back I met him in the street.
A. since B. when C. until D. after
请填入适当的引导词
I haven’t heard from him _____ he went to America .
We found the books two days
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