网友句子的空格已经填起来了，应删去。

But do you know what it is that makes the weather change?

我给网友演绎一下：

1. 去掉do you know，把原句变成陈述句：

It is global warming that makes the weather change.

2. 就划线部分提问：

It is global warming that makes the weather change.

What is it that makes the weather change?

3. 加Do you know，让 What is it that makes the weather change? 变成know 的宾语从句，那么，What is it 的语序变成 what it is：

But do you know what it is that makes the weather change?

强调句的特殊疑问句式举例：

疑问词+ is (was) it + that +句子的其他成分，特殊疑问词即是被强调的成分。例如：

Who was it that found your pen in the classroom yesterday?

When was it that the Second World War broke out?

Where was it that you lost your cell phone?

How was it that he managed to get my address?

How long ago was it that you last saw her?

What was it that had made you so sad?　　

Why was it that silver was not widely used as conductor?　　

Which book is it that you want?　　

Whose umbrella was it that you took away?