考研英语语法（二十三）

特殊句式：

强调
    1.强调句的构成
        It is+强调的部分+that+句子余下的部分
            强调前：We hear the more honest argument only in recent years.
            强调后：It is only in recent years that we hear the more honest argument……
    2.强调句的变化
        It is /was……that/who……(一般是强调既定的事实。如果要强调将来的事情，那就用现在时）
            强调所有事情，都可以用that
                ..it was not until the 19th century that the newspaper became the dominant pre-electronic medium... (因为became,所以是强调过去的事）
            如果强调的是人，既可以用that，也可以用who
                It is they,not America,who have become anti-intellectual．
        强调句不仅可以强调词或词组，也可以强调从句（不能强调形容词或动词）
            It was only after I started to write a weekly column about the medical journals,and began to read scientific papers from beginning to end, that I realised just how bad much of the medical literature frequently was. 
    3.区分强调句和主语从句后置
        还原法（去掉it is……that……，剩余的部分如果是一个完整的句子，就是强调句，否则就是主语从句后置）
            It is this implicit or explicit reference to nature that fully justifies the use of word garden... 
        反向排除法（强调句不能强调形容词或动词）
            It is worrisome that society is medicalizing more and more behavioral problems..