一、 it引导的强调结构

“It is + 被强调部分 + thatwho + 句子其他部分”是使用最广的强调句型。除了谓语动词不能强调外，句子中其它成分，如主语、状语、宾语或宾语补足语都可以用该句型中加以强调。

A. 用强调结构强调句子成分

1．强调主语

被强调的主语是人时，可用It iswas ... thatwho ...，但如果被强调的部分既包括人又包括物，只能用that。

He bought a camera yesterday.

-- It was he thatwho bought a camera yesterday. 是他昨天买了一架照相机。

The famous writer and his works have aroused great interest among the students.

-- It is the famous writer and his works that have aroused great interest among the students. 在学生中引起极大的兴趣的正是这位著名作家以及他的作品。

注意：

强调“I”时谓语动词的变化形式。

It is I who am to blame.

It is me who is to blame. 是我该受到责怪。（非正式文体）

2. 强调宾语

She helped me yesterday.

--It was me thatwhom she helped yesterday. 昨天她帮助的人是我。

They often talk about the school and the teachers.

--It is the school and the teachers that they often talk about. 他们经常谈论的是学校和老师。

3.强调宾语补足语

We elected him chairman of the meeting.

-- It was chairman of the meeting that we elected him. 我们选他是做会议的主席。

We painted the wall white.

It was white that we painted the wall. 我们把墙漆成的是白色。