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—Plastics are very useful, aren’t they?

—Yes, they are.

—Plastics are often used instead of natural materials.  51 

—I don’t think so. I prefer things made of natural materials.

—Don’t you know plastics are not only cheap but also light in weight?

  52  But I don’t like man-made things. I feel clothes made of silk or cotton more comfortable than those made of plastics.

  53 

—You make a mistake about me.  54 

—I’m sure with the development of modern science and technology there can be no trouble at all.

  55 

—Well, we’d better leave this problem for scientists to discuss.

       A.Yes, I do.

       B.You think plastics should come out of use.

       C.I think plastics cannot completely take the place of natural materials anyway.

       D.I think plastics may do harm to people’s health.

       E.They are as good as natural materials. 

       F.They are being made and used almost everywhere

    G.It seems that you have something against plastics.

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B
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1.

A.city

B.school

C.bookstore

D.countryside

 

2.

A.fish

B.water

C.pigs

D.chicken

 

3.

A.cracks

B.holes

C.pictures

D.colours

 

4.

A.cars

B.truck

C.ship

D.planes

 

5.

A.as usual

B.as follows

C.as to

D.as for

 

6.

A.run

B.fly

C.shake

D.stop

 

7.

A.ended

B.continued

C.began

D.went

 

8.

A.high

B.wide

C.round

D.away

 

9.

A.terrible

B.lovely

C.happy

D.ordinary

 

10.

A.meeting

B.class

C.rain

D.earthquake

 

11.

A.number

B.house

C.money

D.goods

 

12.

A.workers

B.teachers

C.survivors

D.death

 

13.

A.playing

B.digging

C.sleeping

D.traveling

 

14.

A.wood

B.plastics

C.steel

D.paper

 

15.

A.milk

B.water

C.Cola

D.birth

 

16.

A.pleased

B.shocked

C.frightened

D.interested

 

17.

A.hard

B.easy

C.ready

D.expensive

 

18.

A.volunteers

B.soldiers

C.farmers

D.students

 

19.

A.helped

B.killed

C.injured

D.trapped

 

20.

A.shake

B.die

C.build

D.breathe

 

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