常见问题
一.that引导名词从句与定语从句的区别:
1.引导名词从句的that本身无词义, 只起引导作用, 在从句中并不充当任何句子成分; 而引导定语从句的that是关系代词, 有词义(指代先行词), 除了起引导作用之外, 还在从句中充当句子成分
2.引导宾语从句的that可省略, 引导其他名词从句的that一般不能省略; 而引导定语从句的that如果在定语从句中充当宾语, 也可以省略
a. I know that smoking does harm to peoples health. (宾语从句)
b. The text tells me a fact that I have already known. (定语从句)
c. The news that he had passed the examination made her parents very happy.(同位语从句)
d. The news that he told me yesterday made me surprised.(定语从句)
二.which引导名词从句与定语从句的区别:
which引导名词从句时, 其含义是 哪一个, 哪一些 which引导定语从句时, 指代先行词, 其含义就是先行词的意思
a. There are so many beautiful caps in the shop. I really dont know which one I should choose.(宾语从句)
b. I will never forget the days which we spent in the countryside. (定语从句)
三.that / what引导名词从句的区别:
引导名词从句时, that本身无词义, 只起引导作用, 在从句中也不充当任何句子成分; what有词义, what引导的名词从句的含义是 的事 / 物 (任何抽象的或具体的物) , what在从句中也充当一个成分
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