1 语法复习十八:连 词 连词分为并列连词和从属连词两大类
并列连词是连接主语与主语,谓语与谓语,句子与句子,分词与分词的词,它要求前后两部分有相同的形式和语法作用;而从属连词一般连接主句与从句,从句形式有名词性从句,定语从句和状语从句等
(一)并列连词: 并列连词可用来连接词与词,词组与词组,分句与分句
常用的并列连词有:and(和),as well as(既„又),both … and(不但„而且),not only … but also(不但„而且),not … but(不是„而是),neither … nor(既不„也不),either … or(不是„就是),or(或者),but (但是),yet(然而),for(因为),so(所以),while(而),when(这时)等
如:Both my brother and my sister are teachers
/ His room is bright but mine is gloomy(暗沉沉的)
/ He can not only repair radios but also fix them
/ It is a glorious(光荣的)yet difficult task
/ Strike while iron is hot
(二)从属连词 从属连词是指在复合句中引导从句的连结词
常见的从属连词有: 引导时间状语从句的:after, before, when, as, while, since, until, till, as soon as 引导原因状语从句的:because, since, as 引导让步状语从句的:although, though, no matter(无论), even if (though) 引导条件状语从句的:if, unless, once, so (as) long a