定语从句 知识讲解 怎么区别强调句和定语从句

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  • 晒钩汕康骶浠蚨ㄓ锎泳洌?秸呒?谆煜?R话憷此担?玦t is/was...与连接词去掉,句子仍然正确,就为强调句型.这时,就选用that连接词;否则,就为定语从句,其关系词的选择,应根据先行词与从句的关系而定.例1.(1) It is on the island that they spent 10 years.(2) It is the island where (on which) they spent 10 years.比较:(1)该句为强调句.表示地点的名词the island前有介词与其连用,说明它是一个完整的地点状语.如果将it is去掉:They spent 10 years on the island.它的意义仍然完整.故应选用连接词that构成强调句式 (注:强调地点状语时,不可用where连接).(2)该句为定语从句.表示地点的名词the island前没有介词与其连用,说明它不是一个完整的地点状语.如果将it is去掉:They spent 10 years the island.它的意义不完整.故应选用关系副词where或on which 构成定语从句结构.例2.(1) It is on the date that she went abroad.(2) It is the date when(on which) she went abroad.比较:(1)分析句子结构可知,在表示时间的名词the date 前有介词与其连用,说明它是一个完整的时间状语.如果将it is去掉:She went abroad on the date.它的意义仍然完整.故应选用连接词that构成强调句式(强调时间状语时,不可用when连接).(2) 分析句子结构可知,在表示时间的名词the date 前没有介词与其连用,说明它不是一个完整的时间状语.如果将it is去掉:She went abroad the date.它的意义不完整.