以下是考官写的一句话：
It is the interaction of the two that shapes a person‘s personality and dictates how that personality develops.
强调句是考生比较难把握的一种句型，容易和it引导的形式主语相混淆，但其实我们只要找到强调句的一个特点，即去掉It is… that… / It is… who…仍然是一个完整的句子。
通过以上三种句式结构的介绍，考生就能轻松给简单句穿上外衣进行包装了，这样表达同样的意思用不同的句式结构，出来的效果完全不一样。在笔者平时在课堂的教学中，这几个句型帮助学生突破了如何写好句子的瓶颈。下面我们来看一句话分别用不同的三种表达方法，明显改变了效果。
中文： 二十世纪末科技的繁荣，人们开始广泛使用电脑。
(1) witness 句型
The late 20th century witnessed the prosperity in science and technology, thereby giving rise to the wide application of computers.
(2) With结构状语前置
With the prosperity in science and technology in the late 20th century, the computers were widely applied.
(3) 倒装句
So flourishing was the science and technology in the late 20th century that computers were widely applied in various fronts.
(4) 强调句型
It was the prosperity in science and technology in the late 20th century that gave rise to the wide application of computers.
