完形填空两则

袁会珍

(A)

From the earliest times men seem to have noticed the habits of insects, and to have learned lessons from them. Ants and bees work very hard during the summer, __1__ enough food to last during the winter. They give us a good example to __2__. If we waste time when the condition are good for work, we shall probably __3__ later; when we really want to work, we are __4__ to do so. Moths, and some other insects, cannot help flying __5__ a light of any kind. The attraction seems to be too strong for them. __6__, they often destroy themselves by flying into something that is __7__, such as a lighted candle. In some countries, when such insects as flying ants become a nuisance(讨厌的东西), people __8__ themselves by lighting fire at the doors of their cottages. Sometimes the insects fly into the fire in __9__ large numbers that they put it out. In literature we often find poets warning us of the danger of being attacked by bright or __10__ things that will destroy us. Butterflies are admired for their __11__, though they receive very little praise for anything else. They fly about __12__ the sunshine, going from flower to flower, __13__ all day long, leading a life of pleasure. They are beautiful, but it seems that they are not of much real __14__ to anybody. Some human beings lead very much the same sort of life __15__ they are butterflies of society.

Locusts are __16__. They are active enough, too active. They spend their time eating the food of others. __17__ there are men like this, destroying things wherever they go, taking themselves __18__ belongs to others, using up everything and producing nothing. They are human __19__. Perhaps it may be said that even the __20__ insects have one use; they warn us not to be like them.

1. A. gathering B. growing C. collecting D. producing

2. A. learn B. follow C. set D. accept

3. A. lose B. realize C. suffer D. understand

4. A. unable B. unnecessary C. anxious D. eager

5. A. into B. from C. towards D. around

6. A. In other words B. On the other hand

C. In the meanwhile D. As a result

7. A. burning B. glittering C. shining D. twinkling

8. A. prevent B. stop C. keep D. protect

9. A. such B. so C. as D. too

10. A. beautiful B. expensive C. ugly D. terrible

11. A. color B. attraction C. beauty D. design

12. A. in B. under C. down D. below

13. A. free B. happy C. busy D. valuable

14. A. use B. good C. importance D. help

15. A. but B. and C. or D. though

16. A. familiar B. similar C. different D. favorite

17. A. Luckily B. Generally C. Unfortunately D. Usually

18. A. that B. which C. those D. what

19. A. locusts B. moths C. enemies D. butterflies

20. A. most B. least C. worst D. best

(B)

Why not birds get lost on their migratory(迁移的) flights? Scientists __1__ over this question for many years. Now the reasons have been discovered only recently. __2__ ago experiments showed that birds depend on the sun to guide them __3__. But what about the birds that fly mainly by night? __4__ with man-made stars have proved __5__ certain night flying birds are able to follow the __6__ in their long distance flights.

One such __7__ a warbler(刺嘴莺)—had spent its lifetime in a __8__ and had never flown under a natural sky. Yet it showed an inborn(天生的) __9__ to use the stars for guidance. The birds cage was placed under a man-made star-filled sky at migration __10__. The bird tried to fly __11__ the same direction as __12__ taken by his indoor cousins. Any __13__ in the position of the make-believe(虚构的) stars __14__ a change in the direction of his flight.

Scientists think that warblers, __15__ flying in daylight, use the sun for guidance. But stars are clearly their important __16__ of navigation(导航). What do they do when the stars are __17__ by the clouds? Clearly, they find their way by such land __18__ as mountain ranges, coastlines(海岸线) and river courses. But when its too __19__ to see these, the warblers circle __20__, unable to find out where they were.

1. A. talked B. puzzled C. went D. looked

2. A. Not long B. Long C. Centuries D. Years

3. A. during the night B. during daylight hours

C. in winter D. in the dark

4. A. Examination B. Laboratories C. Tests D. Sky

5. A. why B. how C. what D. that

6. A. stars B. moon C. route D. sun

7. A. star B. scientist C. bird D. flight

8. A. forest B. cage C. nest D. cave

9. A. strength B. ability C. experience D. practice

10. A. time B. place C. way D. room

11. A. to B. towards C. in D. under

12. A. that B. which C. one D. it

13. A. one B. change C. way D. bird

14. A. caused B. gave C. resulted D. meant

15. A. for B. when C. after D. before

16. A. ways B. means C. objects D. homes

17. A. shown B. covered C. removed D. hidden

18. A. areas B. surface C. marks D. signs

19. A. far B. far away C. dark D. bright

20. A. helplessly B. hopefully C. easily D. freely

Key(1)