以下就是希賽網(wǎng)考博英語頻道為大家整理的考博英語完型填空模擬試題。

Why, you may wonder, should spiders be our friends? Because they destroy so many insects, and insects ___1___ some of the greatest enemies of the human race. Insects would make ___2___ impossible for us to live in the world. They would devour (eat up quickly) all our crops and kill our flocks and herds, were it not___3___ the protection we get from insect-eating animals. We ___4___ a lot to the birds and beasts who eat insects but all of them ___5___ together kill only a fraction of the___6___ destroyed by spiders.___7___ , unlike some of the insect eaters, spiders never do the least ___8___ to us or our belongings.

Spiders are not insects, ___9___ many people think, ___10___ even nearly related to them. One can tell the ___11___ almost at a glance, ___12___ a spider always has eight legs but an insect never more than six.

How many spiders are ___13___ in this work on our___14___ ? One authority ___15___ spiders made a ___16___ of the spiders in a grass field in the south of England, and he estimated that there were more than 2 250 000 in one acre; that is ___17___ like 6000 000 spiders of different kinds on a football field. Spiders are busy for at least half the year in killing insects. It is ___18___ to make more than the ___19___ guess at how many they kill, but they are hungry creature, not ___20___ with only three meals a day.

1. A. include B. involve C. consist D. cover

2. A. this B. that C. it D. them

3. A. with B. for C. of D. on

4. A. devote B. dedicate C. owe D. contribute

5. A. gotten B. put C. linked D. associated

6. A. number B. amount C. plenty D. proportion

7. A. Consequently B. Moreover C. Conversely D. However

8. A. damage B. ruin C. good D. harm

9. A. as B. which C. because D. though

10. A. so B. either C. nor D. none

11. A. likeness B. difference C. similarity D. appearance

12. A. if B. although C. for D. when

13. A. participated B. joined C. enclosed D. involved

14. A. honor B. sake C. side D. behalf

15. A. on B. in C. about D. with

16. A. census B. consensus C. conscience D. consciousness

17. A. nothing B. something C. anything D. everything

18. A. likely B. useless C. impossible D. probable

19. A. broadest B. widest C. bravest D. wildest

20. A. concerned B. identified C. patient D. content

[答案]

1-5：ACBCB           6-10：ABDAC

11-15：BCDDA      16-20：ABCDD