连词是一种虚词,在句中起连接功效,能够用来连接单词、短语、从句、分句或句子。在名子中不单独作句子成份,通常不重读
归类
按照连词的本身含义及所连接的成份是不是平等,连词可分为并列连词和从属连词两大类
1、并列连词
并列连词用以连接彼此是并列关系的单词、短语、从句或分句,被连接的两个部分彼此独立的,在句法上是平等的。常用的并列连词有 and、or、but、not only..but also..、both..and.. 等
2、从属连词
从属连词用来连接两个或两个以上的分句,形成繁杂句中的从属分句,即引导名词性从句和状语从句。常用的从属连词有 that、whether、when、although、because 等
与介词、副词的区别
1、在状语从句中,用连词来连接从句
Though he was poor, he never begged for money.
2、在状语从句中,不可用副词来连接从句
He is very smart, moreover, he is diligent. 错误
He is very smart and, moreover, he is diligent. 正确
3、介词后面只能是名词形式
Despite he was poor, he never begged for money. 错误
Despite his poverty, he never begged for money. 正确
Though he was poor, he never begged for money. 正确
4、状语从句中,只应该运用一个连词
Although she studied hard, but she didnt succeed. 错误
Indeed she studied hard, but she didnt succeed. 正确
【重视】既是连词又是介词的三个单词:before、after、since
常用连词
when 当...时;while 当...时,在...时期;whenever(no matter when) 没论什么时候
where 在...地区;wherever(no matter where) 没论哪里;everywhere 每一...地区/到处;anywhere 任何地区
as 由于、虽然;as...as... 和...同样;as far as 就...而言;so/as long as 只要;as if/though 好似
however(no matter how) 没论怎么样;whatever(no matter what) 没论什么
before 在...以前;after 在...以后
though/although 虽然/尽管;even if/though 即使
as soon as/the moment/no sooner..
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