1）Mr. Lee is a well-known scientist. 名词作主语
2）He reads newspapers everyday. 代词作主语
3）Two and ten is twelve. 数词作主语
4）Smoking is harmful to the health. 动名词作主语
5）To swim in that pool is a great pleasure. 动词不定式作主语
6）What we shall do next is not yet decided. 从句作主语
1）The new term begins on the 1st of September.
2）His father is an engineer.
3）She seemed happy.
4）Li Hua showed me his album.
1）Wang Ling lent me a novel to read in the bus.
2）The medicine is good for a cold.
3）How many pieces do you want?
4）My little sister always likes to ask questions.
5）Would you mind coming earlier tomorrow?
6）He asked me what I was going to do tonight
1）The government appointed（任命）her chief delegate （首席代表）to the conference.
2）I don't believe the story true.
3）You should put your things in order（有序）.
4）The doctor advised her to stay in bed for a week.
5）We saw the pupils playing basketball.
1）Wang's father is a doctor.
2）He is always careless.
3）The basketball match is on.
4）All the pupils are on the playground now.
5）Our aim is to win more medals.
6）His work is teaching French.
7）The question is who can really repair the machines.
He looks disappointed（形容词作表语）他看起来很失望。
The rubbish smells terrible.渣滓很难闻。
表示变化的：get、become、turn（变得）。It becomes hotter and hotter（形容词作表语）。 天变得越来越热了。
Tom is a handsome boy. The two boys are students.
His boy needs Tom's pen. The boy in the classroom needs a pen of yours.
The boy needs a ball pen. The best boy here is Tom.
There is nothing to do today. The smiling boy needs a pen bought by his mother.
This is the new dictionary which I bought yesterday.
1）She sings quite well.
2）On Sundays, there is no student in the classroom.
3）He sits there, asking for a pen.
4）The boy needs a pen to do his homework.
5）If I have some spare time, I will read some story-books.
We students should study hard.（students是we的同位语，都是指同一批'学生’）
We all are students.（all是we的同位语，都指同样的'我们’）