初中英语分类练习 ——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。 知识点概述 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: 1)You can go to Beijing either today or tomorrow 2)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: 1) His brother is fond of football while he likes basketball. 2) 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: 1) To study English well, we need both diligence and careful. 2) 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: 1) It must have rained, for the ground is wet. 2) You are in the right, therefore they should support you.
实战演练 一、例题选讲
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