动 词 不 定 式 复
习
主备人:谭 闻
动词不定式的基本结构是“to
+动词原形”,有时可以不带to,
动词不定式没有人称和数的变化,在句中
除了不能作谓语以外,其它成分都能做。
To play in the
street is dangerous.(主语)
To learn a foreign
language well is not easy.(主语)
He wants to be a
pilot.(宾语)
They hope to travel
all over the world.(宾语)
His dream is to
become an astronaut.(表语)
Her wish is to go to
Oxford University.(表语)
The best time to
visit China is spring and autumn.(定语)
Would you please give me
something to eat?(定语)
We are happy to see
you again.(原因状语)
The doctors were surprised
to hear the bad news.(原因状语)
Many people went to the
hospital to see the hero.(目的状语)
He got up early to
catch the first bus.(目的状语)
What would you like me
to do?(宾语补足语)
I told him to turn
down the radio.(宾语补足语)
动词不定式作主语时,常用it作形式上的主语放句首,真正的主语放句末,以避免句子头重脚轻。如:
It’s difficult to learn
English well. = To learn English well is difficult.(=Learning
English well is difficult.)
It’s pleasant to lie on the
beach in summer. = To lie on the beach in summer is
pleasant.(=Lying on the beach in summer is pleasant.)
动词不定式的否定结构为“not to+动词原形”,如:
decide not to do sth; tell sb
not to do sth; ask sb not to
do sth; want sb not to do
sth
The policeman told the boys not to play in the
street.
动词不定式可以和疑问词what, which, how, where,
when等连用,构成不定式短语,如:
We don’t know what to buy for her.
The question is how to help him.
I want to know when and where to go.
不带to的情况:
see / hear / watch / find / feel / notice sb
do
let/make/have sb do
让某人干某事
help sb (to) do
动词不定式专题练习
1. Tom seems ___ the old lady.
A.
knowing
B. to be
knowing
C. to know
D. to be known
2. Jack ___ when they spoke ill of him.
A. happened to be passed
B. happened to be passing by
C. happened passing by
D. happened to passed
3. The students all hope ____
scientists.
A. become
B. to become
C.
becoming D.
became
4. The girl refused ____ for climbing the tall tree.
A. to
pay
B. to be
paid
C. being
paid
D . paying
5. We happened ____ the article when the teacher asked us about
it.
A. having
read
B. to have
read
C. to be
read
D. reading
6. ______ with Mary is a great pleasure.
A. To talk
B.
Talk
C.
Talked
D. To talking
7. It is nice _____ her
voice.
A. to hear
B.
hear
C.
heard
D. to be hearing
8. _____ is to
struggle.
A. Living
B.
Live
C. To
live
D. To be lived
9. His wish is ____ a
teacher.
A. becoming
B.
become
C. to
become
D. being come
10. He was just about ____ the office when the phone rang.
A.
leaving
B.
leave
C. to
leave
D. to leaving
11. They didn’t ____ it until the teacher had explained how.
A. manage to
do
B. managed to
do
C. manage to have
done
D. manage
doing
12. We found it important ___ the situation all over the
world.
A.
study
B. to
study
C. studies
D. to be studied
13.In the end the enemy soldiers had no choice but ___ their
guns.
A. to lay
down
B. lie
down
C. laying
down
D. lay down
14. Last night he did nothing but ___ TV.
A.
watch
B.
watched
C. to
watch
D. watching
15. It had no effect except ___ her angry.
A.
make
B.
making