1.陈述句的强调句型
It is/was+被强调部分(通常是主语、宾语或状语)+that/who(当强调主语且主语指人)+其他部分。
例子 It was yesterday that he met Li Ping.
2.一般疑问句的强调句型
同上,只是把is/was提到it前面。
例子Was it yesterday that he met Li Ping?
3.特殊疑问句的强调句型
被强调部分(通常是疑问代词或疑问副词)+is/was+it+that/who+其他部分?
例子When and where was it that you were born?
4.not…until…句型的强调句
A.句型为:It is/was not until+被强调部分+that+其他部分
普通句:He didn't go to bed until/ till his wife came back.
强调句:It was not until his wife came back that he went to bed.
B.注意:
此句型只用until,不用till。但如果不是强调句型,till,until可通用;因为句型中It is/was not ...已经是否定句了,that后面的从句要用肯定句,切勿再用否定句了。
5.谓语动词的强调
A.It is/was ... that...结构不能强调谓语,如果需要强调谓语时,用助动词do/does或did
Do sit down. 务必请坐。
Do be careful when you cross the street.过马路时,务必(千万)要小心啊!
B.注意:
此种强调只用do/does和did,没有别的形式;过去时用did,后面的谓语动词用原形。