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which的Tag内容描述：<p>1、which和as的用法归纳及比较一、which引导名词从句的用法比较 which作为连接代词，可以引导名词从句， 在从句中作主语、宾语、定语或表语等语法成分。that在引导名词从句时，只起连接主句和从句的作用，其本身没有任何含义，不翻译。例如： （1）Which is better depends on these two clothes quality. （2）That Tony cant swim is unbelievable. （3）I dont know which I should choose，because the red andthe yellow are both beautiful. （4）I think that you can do it better. 从例句中我们可以看到，which和that都可以引导主语。</p><p>2、as, which 非限定性定语从句 由as, which 引导的非限定性定语从句，as和which可代整个主句，相当于and this或and that。As一般放在句首，which在句中。例如： As we know, smoking is harmful to ones health. 如我们所知，吸烟有害健康。 The sun heats the earth, which is very important to us. 太阳使地球暖起来，这对我们人类很重要。 典型例题 1）Alice received an invitation from her boss, ___came as a surprise. A. it B. that C. whichD. he 答案C. 此为非限定性从句，不能用 that修饰，而用which.，it 和he 都使后句成为句。</p><p>3、关于定语从句关系代词that,which,who的解析关系代词引导的定语从句1. 关系代词用来指代先行词是人或物的名词或代词句子成分 用于限制从句或非限制性从句 只用于限制性从句代替人代替物代替人或物主语 Whowhich that宾语 Whom which that例1：This is the detective who came from London.例2：The book which I am reading is written by Tomas Hardy.例3:The man who(m) you are talking to is my good friend.例4：This is the room that Shakespeare was born in.关系代词的用法(1) 如果先行词是all, much, anything, something, nothi。</p><p>4、关系代词which指人的五种情况黑龙江省宾县第一中学刘世岩在教学中遇到这样一道题：“The child ______is lying in the cradle is my little son.”有百分之九十的同学用who；有百分之五的同学用what，只有百分之五的同学用which。根据关系代词which的用法特点：在定语从句中指物，可做主语，也可以做宾语。例如：My little son did not listened to the teacher very carefully yesterday, which I think was wrong.我的小儿子昨天没有认真听讲，我认为是不对的。（which引导非限定性定语从句，在从句中做主语）。The book which I bought。</p><p>5、定语从句中什么时候用关系代词that而不用whichA.以下情况多用that. (1)如果先行词是all,much,anything,something,nothing,everything,little,none等不定代词，关系代词一般只用that，不用which。例如：Allthepeoplethatarepresentburstintotears.IsthereanythingthatIcandoforyou? (2)如果先行词被theonly,thever。</p>