強(qiáng)調(diào)句型是高考試題當(dāng)中的高頻考點(diǎn)之一。特推出“強(qiáng)調(diào)句型5條溫馨小貼士”，以期幫助同學(xué)們更進(jìn)一步掌握好這一重要句式。

溫馨小貼士1：強(qiáng)調(diào)句型的一般疑問句形式

句型結(jié)構(gòu)：Is/Was it +被強(qiáng)調(diào)部分 + that/who + …?

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

Was it in 1949 that the PRC was founded?

溫馨小貼士2：強(qiáng)調(diào)句型的特殊疑問句形式

句型結(jié)構(gòu)：特殊疑問詞（who, what, which, when, why, how, …）+ is/was it that +… ?從結(jié)構(gòu)可看出，特殊疑問詞即強(qiáng)調(diào)句型中所要強(qiáng)調(diào)的部分。

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

How was it that he passed the driving test?

特別注意: 當(dāng)該結(jié)構(gòu)充當(dāng)賓語從句時(shí)則一定要用陳述語序，如：I want to know where it was that you met her for the first time.

溫馨小貼士3: 強(qiáng)調(diào)句型反意疑問句式。

句型結(jié)構(gòu)：It is/was +被強(qiáng)調(diào)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?

溫馨小貼士4：強(qiáng)調(diào)句型的be動(dòng)詞與情態(tài)動(dòng)詞相結(jié)合

句型結(jié)構(gòu)：

1)It may/might be +被強(qiáng)調(diào)部分 +that/who +…

2) It must be/ must have been +被強(qiáng)調(diào)部分 + that/who +….

3) Would/Could it be +被強(qiáng)調(diào)部分+ that/who + …?

溫馨小貼士5：強(qiáng)調(diào)句型與其他易混句式的區(qū)別

與強(qiáng)調(diào)句型相似的句式常見的有以下三種：

1） It is/has been+ 一段時(shí)間 +since 從句 （若從句謂語動(dòng)詞是延續(xù)性動(dòng)詞，意為“某人不做某事已有多長時(shí)間；若從句謂語動(dòng)詞為終止性動(dòng)詞，意為“某人做某事已有多長時(shí)間。）

如：It is three years since he lived here. 他不在這兒住已有三年了。

2）It +be +時(shí)間 +when 從句… 此句型意為：某事發(fā)生時(shí)正是……時(shí)候。

如：It was midnight when he came back.

3）It was/will be +時(shí)間 +before 從句。此句型若為肯定句意為“過了……之后某事才發(fā)生”；若為否定句意為“不久就……”

強(qiáng)調(diào)句型與此三句型辨別的法則就是看時(shí)間短語有無介詞。若為介詞則為強(qiáng)調(diào)句型；若無介詞則為此三句型中的一個(gè)，再結(jié)合句意判斷是哪一個(gè)。

特別提示：像yesterday、last week、a moment ago、tomorrow 等在句中作時(shí)間狀語時(shí)，前面不能加任何介詞。