强调句型是高考试题当中的高频考点之一。特推出“强调句型5条温馨小贴士”,以期帮助同学们更进一步掌握好这一重要句式。

温馨小贴士1:强调句型的一般疑问句形式

句型结构:Is/Was it +被强调部分 + that/who + …?

如:Is it you that have finished the task on time?

Was it in 1949 that the PRC was founded?

温馨小贴士2:强调句型的特殊疑问句形式

句型结构:特殊疑问词(who, what, which, when, why, how, …)+ is/was it that +… ?从结构可看出,特殊疑问词即强调句型中所要强调的部分。

如:Who is it that is to blame for the traffic accident?

How was it that he passed the driving test?

特别注意: 当该结构充当宾语从句时则一定要用陈述语序,如:I want to know where it was that you met her for the first time.

温馨小贴士3: 强调句型反意疑问句式。

句型结构:It is/was +被强调部分 +that/who +… , isn’t/wasn’t it?

如:It is human activity that has caused this global warming, isn’t it?

It was yesterday that Tom met an old friend in the park, wasn’t it?

温馨小贴士4:强调句型的be动词与情态动词相结合

句型结构:

1)It may/might be +被强调部分 +that/who +…

2) It must be/ must have been +被强调部分 + that/who +….

3) Would/Could it be +被强调部分+ that/who + …?

温馨小贴士5:强调句型与其他易混句式的区别

与强调句型相似的句式常见的有以下三种:

1) It is/has been+ 一段时间 +since 从句 (若从句谓语动词是延续性动词,意为“某人不做某事已有多长时间;若从句谓语动词为终止性动词,意为“某人做某事已有多长时间。)

如:It is three years since he lived here. 他不在这儿住已有三年了。

2)It +be +时间 +when 从句… 此句型意为:某事发生时正是……时候。

如:It was midnight when he came back.

3)It was/will be +时间 +before 从句。此句型若为肯定句意为“过了……之后某事才发生”;若为否定句意为“不久就……”

强调句型与此三句型辨别的法则就是看时间短语有无介词。若为介词则为强调句型;若无介词则为此三句型中的一个,再结合句意判断是哪一个。

特别提示:像yesterday、last week、a moment ago、tomorrow 等在句中作时间状语时,前面不能加任何介词。