定语从句与名词优选性从句的互换.doc

定语从句与名词性从句的互换 一、定语从句和名词性从句由于表达意思的需要，有时可以互相转换。大致有下面三种情 况： （１）定语从句与表语从句的互换 Thats the thing that were worrying about. （定语从句） Thats what were worrying about. （表语从句） 那就是我们正在担心的事。 This is the way she did it. （定语从句） This is how she did it. （表语从句） 这就是她做这件事的方法。 This is the reason why we must go now. （定语从句） This is why we must go now.（表语从句） 这就是我们现在该走的理由。 That is the place where Xiao Lin was born. （定语从句） That is where Xiao Lin was born.( 表语从句 ) 那就是小林出生的地方。 （２）定语从句与宾语从句的互换 I dont know the reason why she is so happy. （定语从句） I dont know why she is so happy. （宾语从句） 我不知道她为什么这样高兴。 He showed me the place where he used to live. （定语从句） He showed me where he used to live. （宾语从句） 他带我看了他曾经住过的地方。 Do you know the date when Wuhan was liberated （定语从句） Do you know when Wuhan was liberated( 宾语从句 ) 你知道武汉是什么时候解放的吗 （３）定语从句与主语从句的互换 The thing that we need is more time. （定语从句） What we need is more time. （主语从句） 我们所需要的是更多的时间。 The time when they will start out has not been decided yet. （ 定 语 从 句） When they will start out has not been decided yet. （主语从句） 他们什么时候动身还没有决定下来。 The reason why he did it wasnt quite clear. （定语从句） Why he did it wasnt quite clear. （主语从句） 他为什么做那件事还不很清楚。 The place where she lives is not known yet. （定语从句） Where she lives is not known yet. （主语从句） 她住在什么地方，大家还不知道。 二、学习定语从句应注意的几个问题 （１）定语从句中关系代词与先行词的一致性 定语从句中关系代词一般应与它所指代的先行词的单复数保持主谓一致。例如： The students who were here just now are from No,2 Senior Middle School. 但注意下列一组句子： He is the only one of the students who was here just now. He is one of the students who were here just now. 如果 one of +复数名词 后跟有定语从句，一般情况下 one of 后的复数名词为先 行词，但当 one 前有 the only,the very,just the 修饰时，先行词则为 one。 （２）定语从句与强调结构 It is the place where they lived before. It is in the place that they lived before. 第一个句子为定语从句， where 指代 the place, 在定语从句中作状语，第二个句子为 强调结构，强调 in the place,that 没有意义，把 in the place 放回后面句子，句 子意思完整。 Where is it that he found the lost watch( 强 调 句 型 ， 强 调 疑 问 副 词 where) 。 Where is the watch that he found ye