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一、強調(diào)句型的基本結構及用法
強調(diào)句型的基本結構是“It is / was +被強調(diào)部分+ that / who+ 句子其余部分”。其中，被強調(diào)的可以是主語、賓語、狀語等，如果被強調(diào)的是人用that或who，其余情況用that。如：
It was my secretary that sent the bill to Mr Harding yesterday. 是我的秘書昨天把賬單送給哈丁先生的。(強調(diào)主語my secretary)
It was his best suit that John wore to the dance last night. 約翰昨晚是穿著他最好的一套衣服去參加舞會的。(強調(diào)賓語his best suit)
It was last night(that)John wore his best suit to the dance. 約翰是昨晚穿著他最好的衣服去參加舞會的。(強調(diào)狀語last night)
It was to the dance that John wore his best suit last night. 約翰昨晚穿著他最好的衣服是去參加舞會的。(強調(diào)狀語to the dance)
It is from advertising that a newspaper earns a lot of its profits. 報紙獲利最多的部分在于廣告收入。(強調(diào)狀語from advertising)
二、強調(diào)句的一般疑問句形式
強調(diào)句型的一般疑問句形式為“Is / Was+ it + 被強調(diào)的部分+ that / who / whom+句子其余部分?”。如：
Is it Tommy who answered the telephone? 是湯米接的電話嗎?
Was it in 2003 that SARS broke out? 是2003年SARS突發(fā)的嗎?
三、強調(diào)句型的特殊疑問句形式
強調(diào)句型的特殊疑問句形式“特殊疑問詞+is / was + that / who / whom +句子其余部分?”如：
What was it that he wanted? 他要的是什么?
Who was it that broke the window? 誰把窗子打破了?
Why is it that you object to the idea? 你為什么反對這個想法?
四、not…until…的強調(diào)句形式
當被強調(diào)的是not…until句型中的until引導的時間狀語時，要將not放在until的前面。如：
It was not until I saw Mary that I felt happy. 直到見到瑪麗我才高興起來。
It was not until I met you that I knew real happiness. 直到我遇到你以后，我才真正體會到幸福。
五、強調(diào)動詞的方法
使用強調(diào)句型進行強調(diào)時，原則上不能對動詞進行強調(diào)，遇此情況可考慮使用what…do…這一結構。如：
She writes science tiction. 她寫科幻小說。
→What she does is (to) write science fiction. 她所做的就是寫科幻小說。
六、強調(diào)全句的方法
若要強調(diào)一個句子，可以考慮使用what和動詞happen的強調(diào)結構。試比較：
The car broke down. 汽車壞了。
→What happened was (that) the car broke down. 發(fā)生的事就是汽車壞了。