完形填空Cleanair1important2health.Ifthereareimpurities(杂质)inthe3,4may5byourbodiesandmakeus6.Weneedcleanair,but7,airpollution8generally9,espec

Question

完形填空

Clean air 1 important 2 health. If there are impurities (杂质) in the 3 , 4 may 5 by our bodies and make us 6 . We need clean air, but 7 , air pollution 8 generally 9 , especially 10 cities.

Now, 11 people are 12 the importance 13 clean air. Schools are now teaching about the pollution problem. Industries are 14 to help clean up their smoke. Scientists are 15 to develop 16 engines for cars. Some day we 17 drive cars that are run by electricity. 18 the day will come 19 people will be able to 20 clean air in cities.

选择最佳答案

1．

A．are

B．was

C．were

D．is

2．

A．for

B．with

C．of

D．on

3．

A．air

B．airs

C．a air

D．air

4．

A．it

B．you

C．they

D．we

5．

A．absorb(吸收)

B．be absorbed

C．be absorbing

D．absorbed

6．

A．health

B．healthy

C．ill

D．illness

7．

A．fortunately

B．unfortunately

C．whatever

D．however

8．

A．is

B．was

C．are

D．were

9．

A．present

B．disappearing

C．living

D．dying

10．

A．to

B．in

C．on

D．for

11．

A．more and more

B．the more and the more

C．fever and fever

D．less and less

12．

A．real

B．really

C．realizing

D．reality

13．

A．of

B．for

C．with

D．in

14．

A．begin

B．began

C．begun

D．beginning

15．

A．trying	B．try
C．tried	D．being tried

16．

A．clean

B．cleaner

C．cleaned

D．cleaning

17．

A．need	B．should
C．would	D．may

18．

A．Muse

B．Perhaps

C．Never

D．Sure

19．

A．which	B．that
C．when	D．where

20．

A．breathe

B．breath

C．breathed

D．breathing

Answer 1

D;A;A;C;B;C;B:A;A;B;A;C;A;D;A;B;D;B;C;A

D;A;A;C;B;C;B:A;A;B;A;C;A;D;A;B;D;B;C;A