It is...that通常不能强调哪些成分
请看一道题:
It was a teacher that she __________.
A. was B. seemed C. looked D. married
此题应选D。从句意上看似乎4个选项都行,其实这里只能填D。因为填A,B,C 中的任意一个选项,都会导致句中的 a teacher成为表语,然而按照强调句句法规则,It is...that这一强调句型是不能强调表语的。一般说来,以下成分不能用于强调句中的被强调部分:
1. 表语:
她很美。
正:She is beautiful.
误:It is beautiful she is.
他是医生。
正:He is a doctor.
误:It is a doctor that he is.
但是宾语补足语却可以用作被强调部分:
他们选他担任主席。
正:They elected him chairman.
正:It was chairman that they elected him.
2. since,as原因状语从句(但because从句却可以):
他不能来是因为他病了。
正:It is because he is ill that he can’t come.
误:It is since[as] he’s ill that he can’t come.
3. although引导的让步状语从句:
虽然累了,但他还是去了。
正:He went although he was tired.
误:It was although he was tired that he went.