初中英语连词

初中英语语法连词

教学目标：掌握连词的用法，在写作中能够灵活运用。

教学重点：1、并列连词的用法

2、从属连词的用法

3、相似连词的辨析

教学难

点：

连词之间的意义及辨析

（一）连词概述

连词是连接单词、短语或句子的一种虚词。在句中不单独作句子成分。历年中考中常考并列连词and, but ,neither… nor；从属连词now that, though, when。所以了解状语从句和宾语从句的真正意义有助于正确使用从属连词。（二）基础知识梳理1．并列连词用来连接彼此并列的词、短语或句子。并列连词有and，or，

but，so，for，nor 等。

2. 关联连词有both…and, either… or, neither…nor, not only…but also, as well as as much as等。

3. 连接性副词有however，therefore ，besides，yet，anyway，still ，all the same 等。

4. 并列连词和连接性副词存在以下的区别：

1）连接两个独立的分句时，并列连词的位置只能放在它所引导的分句的句首，前面通常有逗号。如：

I must work hard, for I still have a long way to go.

They all went, but I didn't go.

2）连接性副词的位置比较灵活，句中、句首、句末都可以。但是放在句首较为普遍。如：

Mother was ill, therefore, she stayed at home yesterday.

= Mother was ill, she therefore, stayed at home yesterday.

= Mother was ill, she stayed at home yesterday, therefore.

3）两个并列连词不可以连用。如：

He tried hard. and but he failed to get the job.此句中的but 应改为yet。因为and 和but 都是连词。

5. 从属连词是用来引导从句，如宾语从句、状语从句、定语从句等。从属连词有that，if, unless, whether, who, whose, what, which, where, than, when, while, as, since, though, although, because, before, after, until, as soon as, now that, so...that, so that, as... as,（ not） as/so…as 女口：

If it snows tomorrow，we won't go on a picnic.（If 引导条件状语从句）

Could you tell me whose PC it is?（whose 引导宾语从句）

The man who is talking to my class teacher is my fathe（r. who 引导定语从句）连词的功能用来连接词，短语，从句或句子的词叫连词。连词是一种虚词，在句中不能单独使用。连词

可分为两类：并列连词和从属连词。

5. 并列连词 并列连词用来连接具有并列关系的词，短语或句子。常见的并列连词有：

(1) 表并列关系的 (2) 表选择关系的 (3) 表转折关系的 (4) 表因果关系的 6. 从属连词

and, both … and, not only … but also, neither … nor

等。 or, either …or 等。

but, while 等。

for, so 等。

从属连词用来引导从句。常见的从属连词有：

(1) 引导时间状语从句的 after, before, when, while, as, until, till, since, as soon as 等。 (2)引导条 件状语

从句的 if, unless 等。 because, as, since 等。 so that, in order that 等。 though, although, even if

等。

that, so …that, such …that 等。 than, as …as 等。

so (8)引导名词从句的 that, if , whether 等。

常用连词的用法辨析 (1) while, when, as 这三个连词都可引导时间状语从句，7. 但用法有所不同。

1) 当某事正在进行的时候，又发生了另一件事。 While, when, as 都可用来引导表示“背景” 的时间状语从句。例如：

As/When/While I was walking down the street I noticed a police car.

2) 当两个长动作同时进行的时候，最常用的是 while 。例如： While mother was cooking lunch, I was doing my homework.

3) 当两个动作都表示发展变化的情况时，最常用的是 as 。例如：

As children get older, they become more and more interested in things around them. 4) 当两个短动作同时发生时，或表示“一边…一边…”时，最常用

as 。例如： Just as he caught the fly, he gave a loud cry.

She looked behind from time to time as she went

5) 当从句的动作先于主句的动作时，通常用

when 。例如： When he finished his work, he took a short rest.

6) 当从句是瞬间动作，主句是延续性动作时，通常用 when 。例如：

When John arrived I was cooking lunch.

(2) as, because, since , for 这四个词都可表原因，但用法有区别。

1) 如果原因构成句子的最主要部分，一般用

because 。因此，because 引导的从句往往放在 句末。例如：

I stayed at home because it rained.

---Why aren 't you going?

---Because I don 't want to.

2) 如果原因已被人们所知，或不如句子的其它部分重要，就用

as 或since 。Since 比as 稍微

正式一点。 As 和 since 引导的从句一般放在句子的开头。例如：

As he wasn 't ready, we left without him.

Since I have no money, I can ' t buy any food. 3) for 用来补充说明一种理由，因此， for 引导的从句几乎可以放在括号里。 For 引导的句子 不放在句子的开头。例如：

(3)引导原因状语从句的 (4)引导目的状语从句的 (5)引导让步状语从句的 (6)引导结果状语从句的 (7)引导比较状语从句的