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Grammar2
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Grammar2
连词部分
连词在句中的作用是把词与词、短语与短语、句子与句子连接起来。它不能在句中单独作句子成分。
一、并列连词和从属连词的用法
连词是连结单词、短语、从句或句子的虚词, 在句子中不单独作句子成份。
连词按其性质可分为:
1.并列连词 如:and, or, but, for, 等, 连接并列的词与词,短语与短语,句子与句子。
如:Rice and potatoes are common foods. (词与词)
Today we can travel by plane. (短语与短语)
Many trees lose their leaves in winter, but evergreen trees do not. ( 句子与句子)
关联连词是一类成对使用的连词
如:both……and……, not……but…….
not only……but also…… not only…but… as well
either……or…… neither……nor……
关联连词必须后接同样的语法结构。
如:Either the windows were opened or the door was opened.
2.从属连词 如:that, whether, when, because, though 等, 用以引导名词性从句和状语从句。
3.从属连词引导的从句不可以被断成一个句子。 如果断开,就错了。
如:When the alarm clock rang. (不完整)
4. though (although)引导让步状语从句,because 引导原因状语从句, 所以though(although)不能和并列连词but ,because 不能和并列连词 so一起使用。 只能单独使用。
二、复习时需要注意的要点
1.表示选择关系的连词,连接的双方只取其一。常用连词有or, either...or, otherwise
例如:
You can go to Beijing either today or tomorrow.
You must get up early or you won’t catch the early bus.
2.表示转折关系,连接的双方构成对比,意义上有转折。常用连词有but, however, while, only
例如:
His brother is fond of football while he likes basketball.
You can watch TV, but you must finish your homework first.
3.表示联合关系,联合的双方是对等的,意义上趋向一致。常用连词有:and, both...and, neither...nor, not only...but also, as well as, together with
例如:
To study English well, we need both diligence and careful.
That horse is not only the youngest among the five, but also runs the fastest.
4.表示因果关系,连接的双方,互为因果,或者前因后果,或者前果后因。常用的连词有:for, so, therefore
例如:
It must have rained, for the ground is wet.
You are in the right, therefore they should support you.
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- 连接
- 双方
- Grammar2
- 并列
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- 连词
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- 短语
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