中考网整理了关于2021年中考英语连词的用法总结,希望对同学们有所帮助,仅供参考。 连词的用法 连词的功能 用来连接词,短语,从句或句子的词叫连词。连词是一种虚词,在句中不能单独使用。连词可分为两类:并列连词和从属连词。 并列连词 并列连词用来连接具有并列关系的词,短语或句子。常见的并列连词有: (1)表并列关系的and, both…and, not only…but also, neither…nor等。 (2)表选择关系的or, either…or等。 (3)表转折关系的but, while等。 (4)表因果关系的for, so等。 从属连词 从属连词用来引导从句。常见的从属连词有: (1)引导时间状语从句的after, before, when, while, as, until, till, since, as soon as等。(2)引导条件状语从句的if, unless等。 (3)引导原因状语从句的because, as, since等。 (4)引导目的状语从句的so that, in order that等。 (5)引导让步状语从句的though, although, even if等。 (6)引导结果状语从句的so that, so…that, such…that等。 (7)引导比较状语从句的than, as…as等。 (8)引导名词从句的that, if , whether等。 常用连词的用法辨析 (1) while, when, as 这三个连词都可引导时间状语从句,但用法有所不同。 1) 当某事正在进行的时候,又发生了另一件事。While, when, as 都可用来引导表示“背景”的时间状语从句。例如: As/When/While I was walking down the street I noticed a police car. 2) 当两个长动作同时进行的时候,最常用的是while。例如: While mother was cooking lunch, I was doing my homework. 3) 当两个动作都表示发展变化的情况时,最常用的是as。例如: As children get older, they become more and more interested in things around them. 4) 当两个短动作同时发生时,或表示“一边…一边…”时,最常用as。例如: Just as he caught the fly, he gave a loud cry. She looked behind from time to time as she went 5) 当从句的动作先于主句的动作时,通常用when。例如: When he finished his work, he took a short rest. 6) 当从句是瞬间动作,主句是延续性动作时,通常用when。例如: When John arrived I was cooking lunch. (2)as, because, since , for 这四个词都可表原因,但用法有区别。 1) 如果原因构成句子的最主要部分,一般用because。因此,because引导的从句往往放在句末。例如: I stayed at home because it rained. ---Why aren’t you going? ---Because I don’t want to. 2) 如果原因已被人们所知,或不如句子的其它部分重要,就用as或since。Since比as稍微正式一点。As和since 引导的从句一般放在句子的开头。例如: As he wasn’t ready, we left without him. Since I have no money, I can’t buy any food. (责任编辑:admin) |