强调句的连接词只能用who或that吗

强调句的连接词只能用who或that，不能用其它词。

强调句型结构是：

It be+被强调部分+who/that+其它部分

强调人。可用who或者that引导。

除人以外，其它任何被强调的内容都要用that.

例句：

I saw Li Ping in the street this morning.

这是一个主谓宾结构的简单句。具体成分是：

主语：I

谓语动词是：saw

宾语是：Li Ping

地点状语是：in the street

时间状语是：this morning

除谓语部分外。其它部分都可以强调。

1、强调主语

It was I who/that saw Li Ping in the street this morning.

2、强调宾语

It was Li Ping who/that I saw  in the street this morning.

3、强调地点状语(不用where)

It was in the street that I saw Li Ping this morning.

4、强调时间状语(不用when)

It was this morning that I saw Li Ping in the street.

强调句型中连接词一般用that， 如果被强调的部分指人，可以用 who/ that， 其他一律用that不能用 which， where， when等。