4.不定式结构

It is worthwhile to ask him to join the club.

To forgive is divine. 

We eat to live； we don’t live to eat.

I don’t think it difficult to improve your English in a short period of time.

He is thought to be the best player.

5.平行结构

He went downtown, bought some books and visited his daughter.

At the ringing of the bell，I rose，went up and opened the door at once.

I came； I saw； I conquered.

Most students are eager to obtain knowledge，but they lack the sense of what is good，or what is necessary and how such a deficiency in the concept of viewing the situation as a whole would mislead them.

A conscientious professor always prepares his lecture carefully, intelligently and prudentially.

6.独立主格结构

There being no taxis, we had to walk home.

He wrapped his baby up with great care, the night being dark and frosty.

The murderer was brought in，with his hands tied behind his back.

A robber burst into the room, knife in hand.

He came out of the library, with a large book under his arm.

7.强调句

It is from the sun that we get light and heat.

It was my father who did the experiment in the lab yesterday evening.

It may have been at Christmas that John gave Mary a handbag.

It was what he meant rather than what he said that annoyed me.

We do think that our son needs to be realistic.

8.非人称主语句 

Anger choked his words.

An idea suddenly occurred to me.

Great changes have taken place in Chinese rural areas in the last two decades.

Past experience has taught us that we should not depend on others for everything.

A strange peace came over her when she was alone.

9.倒装句

East of the teaching building is the library.

Tired as we are, we are happy.

Only in this way can he grow to be a useful man.

May all your dreams come true!

May our friendship last till the end of the universe!

10.被动语态

Opinions are divided on the question.

All classes are taught by teachers with rich experience in teaching foreign students.

New factories, houses and roads have been built.

English is taught throughout the world.

Coal can be used to produce electricity for agriculture and industry.

11.名词从句

It would mean a great deal to me to listen to the tape and learn what is covered in the talk.

My hometown is no longer what it used to be.

We heard the news that our team had won.

It is still unknown which team will win the match.

My idea is that we should get more people to attend the conference.

12.定语从句

The flat is in a building on Fangcao Street，which is not far from Jiaiixin Chinese School.

It was quite an experience for us both，which Fll never forget for the rest of my life.

He is the man whom you have been looking for.

The girl to whom I spoke is my cousin.