完形填空

　　We are often warned by our teachers not to waste time because time 1 will never return. I think it quite 2 . What does time look 3 ? Nobody knows, and we can't see it or touch it and no amount of money can buy it. Time is abstract, so we have to 4 it.

　　Time passes very quickly. 5 students say they don't have 6 time to review their lessons. It is 7 they don't know how to make 8 of their time. They waste it in going to theaters or parks, and 9 other useless things. Why do we study every day? Why do we work? Why do most people have to take buses instead of walking? The answer is very 10 . We wish to save time because time is priceless.

　　Today we are 11 in the twenty-first century. We 12 time as life. When a person dies, his life ends. Since life is short, we must 13 our time and energy to study so that we may be able to serve the people well in the future . laziness is the 14 of time, far it not only brings us 15 , but also does other 16 to us. If it is 17 for us to do our work today, 18 us do it today and not 19 it until tomorrow. Remember that time is much more 20 .

1．

[　　]

2．

[　　]

3．

[　　]

4．

[　　]

5．

[　　]

6．

[　　]

7．

[　　]

8．

[　　]

9．

[　　]

10．

[　　]

11．

[　　]

12．

[　　]

13．

[　　]

14．

[　　]

15．

[　　]

16．

[　　]

17．

[　　]

18．

[　　]

19．

[　　]

20．

[　　]

I'm afraid this painting is not by Picasso. It's only a copy and so it's _____.
A.priceless　　　　　　 B.invaluable　　　　　　 C.unworthy　　　　 D. worthless

I'm afraid this painting is not by Picasso. It's only a copy and so it's _____.

A.priceless　　　　　　 B.invaluable　　　　　　 C.unworthy　　　　 D. worthless

I ran across a dim photo of him the other day ，going through old thing . He’s been dead for 25 years . His name was Rex.

　 1 was his favourite recreation . He had as much 　 2 in the water as any person I have known . You didn’t have to throw a stick in the water to 　3　 　him to go in . Of course , he would bring back a stick to you if you 　4　 throw one in

That 　5 me of the night , 　6　 he brought back a small chest that he found somewhere how 7 nobody ever knew . Since it was Rex , it 　8　 easily have been half a mile . The chest wasn’t a good one . It was just a 　 9 old piece that somebody 　 10 . Still , it was something he wanted , probably 11 it presented a nice problem in transportation . It tested his courage . We first knew about his achievement when , when ,deep in the night , we 12　 him trying to get the chest up onto the porch . It sounded 　13 two or three people were trying to tear the house 　14 . We came downstairs and turned on the 15 light . Rex was on the top step trying to pull the thing up, but it had 　16　 somehow and he was just holding his own . I suppose he would have held his own 　17　 dawn if we hadn’t helped him. The next day we carted the chest miles away and threw it out . If we had thrown it out in a 　18　 place , he would have brought it home again , as a small token of his strength in such matters . 　19 ,he had been taught to carry wooden objects about and he was 　 20　 of his skill .

1. A. Fighting　　　 B. Swimming　　　 C. Barking　　　 D. Running

2. A. fun　　　　　 B. trouble　　　　 C. danger　　　 D. difficulty

3. A. stop　　　　 B. make　　　　 C. get　　　 D. have

4. A. will　　　　 B. do　　　　　 C. did　　　 D. would

5. A. reminds　　　 B. warns　　　 C. tells 　　 D. suggests

6. A. reminds　　　 B. while　　　 C. as　　　　 D. when

7. A. far　　　　　 B. long　　　　 C. old　　　 D. heavy

8. A. could　　　　 B. can　　　　 C. should　　 D. would

9. A. priceless　　 B. worthless　　 C. valuable　 D. important

10.A.kept　　　　 B. forgot　　　　 C. deserted　 D. remained

11.A.because　　　 B. only if　　　 C. even if　　 D. in case

12.A.saw　　　　 B. heard　　　　 C. watched　 D. caught

13.A.like　　　　 B. that　　　　　 C. as if　　　 D. at least

14.A.up　　　　　 B. in　　　　　　 C. away　　 D. down

15.A.hall　　　　 B. kitchen　　　　 C. bedroom　 D. porch

16.A.rolled　　　 B. stopped　　　　 C. caught　 D. broken

17.A.at　　　　　 B. before　　　　 C. till　　　 D. during

18.A.distant　　　 B. nearby　　　　 C. silent　　　 D. busy

19.A.In all　　　 B. As a result　　　 C. At last　　 D. After all

20.A.proud　　　 B. tired　　　　　 C. ashamed　 D. doubtful

I'm afraid this painting is not by Picasso. It's only a copy and so it's _____.

　 A. priceless　 B. invaluable　 C. unworthy　 D. worthless