强调句型是英语中的一种重要的句子结构，也是高考英语试卷中的重要考点，复习要从基本结构切入。


一、强调句型的基本结构

强调句型的基本结构为"It is / was＋被强调部分＋that/who＋句子的其它部分"。当被强调部分为sb.，且在句中作主语时，可用who，也可用that，其它情况一律用that。强调主语时，that后的谓语动词必须与被强调的主语人称与数保持一致。如：

It is they who often help me with my lessons.

It is I who am to blame.

It was in Greece that Olympic competitions first started.

It was in 1976 that Tom knew her.

在强调句中，如果去掉It is / was...that/who后，句子结构仍然完整、正确，句意仍明确、全面。

二、强调成分

1、强调主语、宾语。如:

It was John who/that helped me yesterday. (强调主语)

It was the two girls that the teacher praised yesterday. (强调宾语)

It was the ability to do the job_________matters not where you come from or what you are. (NMET2000)

A. one B. that C. what D. it

强调主语the ability to do the job,故选B。

2、强调状语。如：

It was at the gate of our school that we gave the visitors a warm welcome. (强调地点状语)

It was with great joy that he received the news that his long lost son would soon return home. (强调程度状语)

It is by bus that Mary usually goes to school. (强调方式状语)

It was three years ago that I came to this school. (强调时间状语)

注意：强调时间、地点、原因或方式状语时，要用that,不能用when, where, why 或 how。