1.动词不定式的种类

不定式是非谓语动词的一种，包括do和to do 两种形式。

2.不定式的功能

to+动词原形构成的不定式有三种功能：

1.不定式当名词用

To take a trip around the world has been my dream.

2.不定式当形容词用

I have something to do.

3.不定式当副词用

I came to see her.

不定式作主语

不定式作宾语

不定式作宾补

选择题

1. --Some children can't afford ____ necessary stationery.

--Let's donate our pocket money to them.

A. buy B. buying C. to buy D. be bought

2.He promised ____ his old friend during his stay in Tianjin.

A. see B. seeing C. saw D. to see

3. --Why don't you go out to play, Rose?

--I'm afraid I can't. I have much homework ______.

A. do B. does C. doing D. to do

4.He is not old enough ______ to school.

A. gone B. going C. went D. to go

5.The young lady took the dress out of the package and tried it on, only _____ if it fitted her.

A. found B. finding C. to find D. has found

6. --I hope to take the computer course.

--Good idea. __________ more about it, visit this website.

A. Found out B. Find out C. Finding out D. To find out

7.Our teacher often advises us _____ the habit of making notes while reading.

A. to develop B. develop C. to developing D. developing

8.It's dangerous _____ a close look at the tiger in the zoo.

A. for us taking B. of us to take C. of us taking D. for us to take

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