He is as tall as I.

He is the same height as I.

She is no less diligent than he.

The lab is no better than a cottage.

2) 差比句

I speak English worse than he does.

He is not so/as tall as I am.

Our knowledge is much inferior to their.

3) 极比句

He is the tallest of all in the class.

None/No one/ is so blind as those that won’t see.

Nothing is so easy as this.

4)比例句

The more a man knows, the more he feels his ignorance(无知）.

5) 择比句

He is taller than any other boy in the class

It is better late than never.

They would die than live as slaves

He prefers doing to talking

He prefers to do rather than to talk.

He prefers mathematics to English.

I’d rather stay here.

6)对比句

You think me idle, but on the contrary, I am busy.

They are working hard while you are wasting your time.

对比

We must work like him.

He behaves as his father does.

He speaks English as if/though he was a foreigner.