1 ）定语从句（限定性和非限定性）

There are many reasons why I want to study in your university. It

is estimated that tens of billions of yuan is spent on cigarettes every

year in our country ， which is a huge waste.

2 ）状语从句（时间，原因，地点，条件，让步等）

When the man is enjoying the cigarette， the smoke becomes a monster

（怪物） which will devour him.

Whatever the reason ， there are still some problems with student

use of computers.

3 ）分词短语做定语或状语

Mr. Kang came to our university ， giving us a lecture on how to prepare

for the CET Band-4.

4 ）强调句

It was him who gave up much hope for the future.

5 ）倒装句

Only through these measures can we hope to solve the problem.

6 ）省略句

If so ， we have to give it up.

If necessary……

Whatever the reason ……

7 ） What 句型

We totally agree with what you have just said.

8 ）设问句

Do you still remember the boy who cried wolf for several times so

no one would trust him？