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专题六 并列句和状语从句 一、并列连词yet，but，when，while，for，so的用法 连词 用法 yet 表示转折， 此时注意 yet位置且前面必须加逗号。 but 连接两个并列成分或两个并列分句，意为“但是，然而”。 连词 用法 when 作并列连词时，意义为“这时，那时”，相当于and at this/that time。常用于下列句式：①sb.was doing sth.when…② sb.was about to/going to do sth.when…③sb.was on the point of doing sth.when…④sb.had just done sth.when… while 作并列连词时，意为“而，却”，表示对比。 连词 用法 for 表示因果关系，引导并列分句，对前面分句加以解释或补充说明，且只能后置，常用逗号与前面的句子隔开。 so 表示因果关系，意为“因此”。 特别提醒 although/though不能与but连用，但可以和yet或still连用。 选用上表中适当的连词填空 1. He is a shy man, _______ he is not afraid of anything or anyone.(2015北京) 2．Some animals carry seeds from one place to another, _______plants can spread to new places.(2017北京) 3．There's no way of knowing why one man makes an important discovery________ another man, also intelligent, fails.(2017课标Ⅰ) 4．One Friday，we were packing to leave for a weekend away ________my daughter heard cries for help. 5．He found it increasingly difficult to read, _______his eyesight was beginning to fail. 【答案】1.but/yet 2.so 3.while 4.when 5.for 二、when，while，as引导时间状语从句的用法 连词 用法 when 引导时间状语从句时，既可引导“时间点”，也可引导“时间段”。 while 引导时间状语从句时，只能引导“时间段”。此时可与when换用。 as 引导时间状语从句时通常与 when通用，另外它还可以表示“随着”。 选用上表中适当的连词填空 1．It was the middle of the night _______ my father woke me up and told me to watch the football game.(2017江西) 2．It's much easier to make friends __________you have similar interests.(2017安徽) 3．He smiled politely _______Mary apologized for her drunken friends.(2017山东) | 
