7. 宾语补足语：
用于补充说明宾语的动作，一般位于宾语之后，宾语与宾语补足语一起构成复合宾语。需接复合宾语的动词有：tell，let，help，teach， ask，see，have，order，make等。“宾补”一般由不定式短语、分词、名词、形容词等充当。
如：We elected him monitor.(名词)
I found it difficult to learn English well.(形容词)
The doctor told me to do more exercise.(不定式短语) He is going to have his hair cut.(过去分词)
They saw a bird flying in the sky.(现在分词
)
热身练习
一、指出下列句中主语的中心词。
1. The teacher with two of his students is walking into the classroom. 2.There is an old man coming here.
3.The useful dictionary was given by my mother last year. 4. To do today's homework without the teacher's help is very difficult.
二、选出句中谓语的中心词
1. I don't like the picture on the wall.
A. don't B. like C. picture D. wall 2. The days get longer and longer when summer comes.
A. get B. longer C. days D. summer 3. Do you usually go to school by bus?
A. Do B. usually C. go D. bus 4. There will be a meeting at the library this afternoon.
A. will be B. meeting C. the library D. afternoon 5. Did the twins have porridge for their breakfast?
A. Did B. twins C. have D. breakfast 6. Tom didn't do his homework yesterday.
A. Tom B. didn't C. do D. his homework 7. What I want to tell you is this.
A. want B. to tell C. you D. is 8. We had better send for a doctor.
A. We B. had C. send D. doctor 9. He is interested in music.
A. is B. interested C. in D. music 10. Whom did you give my book to?
A. give B. did C. whom D. book