初中英语语法备考:连词

来源:51EDU精品学习网

澳门葡京娱乐官方网站 www.gtljlove.com 2018-09-30

连词是一种虚词, 它不能独立担任句子成分而只起连接词与词,短语与短语以及句与句的作用。连词主要可分为两类:并列连词和从属连词。具体请看以下连词语法讲解

并列连词用来连接平行的词、词组和分句。如:and, but, or, nor, so, therefore, yet, however, for, hence, as well as, both…and, not only…but also, either…or, neither…nor, (and)then 等等。

一、并列连词与并列结构

并列连词引导两个并列的句子。

1) and 与 or

判断改错:

( 错 ) They sat down and talk about something.

( 错 ) They started to dance and sang.

( 错 ) I saw two men sitting behind and whisper there.

( 对 ) They sat down and talked about something.

( 对 ) They started to dance and sing.

( 对 )I saw two men sitting behind and whispering there.

解析:

第一句: and 连接两个并列的谓语,所以 talk 应改为 talked 。

第二句: and 连接两个并列的动词不定式,第二个不定式往往省略 to ,因此 sang 应改为 sing 。

第三句: and 连接感观动词 saw 后面的用作的宾补的两个并列分词结构,因此 whisper 应改为 whispering 。

注意: and 还可以和祈使句或名词词组连用表示条件。( or 也有此用法)

Make up your mind, and you'll get the chance.

= If you make up your mind, you'll get the chance.

One more effort, and you'll succeed.

= If you make one more effort, you'll succeed.

2) both …and  两者都

She plays (both) the piano and the guitar.

3) not only…but (also), as well as 不但 … 而且)

She plays not only the piano, but (also) the guitar.

注意: not only… but also 关联两个分句时,一个分句因有否定词 not 而必须倒装。

Not only does he like reading stories, but also he can even write some.

4) neithe…nor 意思为 " 既不 …… 也不 ……" 谓语动词采用就近原则,与 nor 后的词保持一致。

Neither you nor he is to blame.

标签: 英语

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