摘要: why指原因.在定语从句中做原因状语 eg. Please tell me the reason why you are late. 注意:关系副词引导的从句可以由“介词+关系代词 引导的从句替换 (1) The reason why/ for which he refused the invitation is not clear, (2) From the year when/in which he was going to school he began to know what he wanted when he grew up. (3) Great changes have taken place in the city in which./where I was born. 判断关系代词与关系副词: 方法一: 用关系代词.还是关系副词完全取决于从句中的谓语动词.不及物动词后面无宾语.就必须要求用关系副词或者是介词加关系代词,而及物动词后接宾语.则要求用关系代词.例如: This is the mountain village where I stayed last year. I'll never forget the days when I worked together with you. (错) This is the mountain village where I visited last year. (错) I will never forget the days when I spent in the countryside. (对) This is the mountain village I visited last year. (对) I'll never forget the days I spent in the countryside. 习惯上总把表地点或时间的名词与关系副词 where, when联系在一起.此两题错在关系词的误用上. 方法二: 准确判断先行词在定语从句中的成分.也能正确选择出关系代词/关系副词. 例1. Is this museum you visited a few days ago? A. where B. that C. on which 例2. Is this the museum the exhibition was held? A. where B. that C. on which 关系词的选择依据在从句中所做的成分.先行词在从句中做主.定.宾语时.选择关系代词 (who, whom, that, which, whose), 先行词在从句中做状语时.应选择关系副词 ( where 地点状语.when 时间状语.why 原因状语) . Exercises: The man is standing there is my father. A. who B. whom C. which
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