内容正文:
第八章 连词
思维导图
知识梳理
一、连词的定义
连词是一种虚词,它不能独立担任句子成分,也不能重读,在句子中只起连接词与词、短语与短语、句子与句子以及引导从句的作用.
二、连词的分类
(一)根据连词本身的形式分类
根据其构成的形式,连词可以分为4类.
1.简单连词
and(和)
but(但是)
or(或者)
if(如果)
before(在······以前)
since(自从,既然)
2.关联连词
both...and...(既······又······)
either...or...(或者······或者······)
neither...nor...(既不······又不······)
as...as...(和·····样······)
not only...but also...(不但······而且······)
3.短语连词
as if/as though(仿佛)
as soon as(······就······)
as well as(也,又)
so that(以便;结果)
in case(假使;以免)
in order that(为了······)
4.分词连词(它们由动词的分词转变而来)
如:supposing (假如), considering(考虑到), provided(只要)等.
(二)根据连词的句法功能分类
根据连词的句法功能,连词可分为并列连词和从属连词两类.
1.并列连词
并列连词用来连接,按其作用可分为并列、转折、选择和因果等四大类.
(1)并列关系.
用来连接两个概念,常见的连词有:and······和······,·····以及······,both...and...既······又······,not only...but also...不但······而且······,neither...nor...既不······又不······,as well as 也,又.
①and可用来连接两个或两个以上的词、短语或句子,表示一种对等或顺承关系.
My tall friend is handsome, intelligent and strong.我那高个子朋友英俊、聪明、身体又强壮.
She sings and dances very well.她唱歌跳舞都很好.
You, he and I are good friends.你、我、他都是好朋友.
Jim and Li Lei are in the same class.吉姆和李磊在同一个班级.
She is beautiful and helpful.她美丽又乐于助人.
点拨
“祈使句+and+陈述句”用于代替条件从句.
Go ahead and you will see the hospital. = if you go ahead, you will see the hospital.向前走你就会看见医院.
②both...and...
Both Tom and John came to see me.汤姆和约翰两个都来看我.
Mary can both sing and dance.玛丽既会唱歌,又会跳舞.
Both teachers and students will go to visit the farm tomorrow.老师和学生明天都去农场参观.
点拨
连接两个主语,谓语动词要用复数.
Both you and I enjoy music.你和我都喜欢音乐.
③ not only...but also...
Beijing has not only a lot of old houses but also many new buildings.
北京不仅有许许多多古建筑,而且还有很多很多的新楼房.
This girl is not only pretty but also clever.这女孩不仅漂亮而且聪明.
点拨
(1)当连接两个主语时,谓语动词应与最近的主语在数上保持一致.
Not only he but also I am a teacher.不仅他,我也是个老师.
(2)由not only...but also...引导的句子可转换成as well as.
She is not only kind but also beautiful.
She is kind as well as beautiful.她不但漂亮,而且为人很好.
④ neither...nor...
Neither animals nor plants can live without air or water.没有空气和水,动植物都不能活.
He neither wrote nor teleph