4.高二英语周报完形填空专练(4)

高二英语周报完形填空专练（4）

Book 5, Unit 4 Making the news

21. [A][B][C][D] 26. [A][B][C][D] 31. [A][B][C][D] 36. [A][B][C][D]

22. [A][B][C][D] 27. [A][B][C][D] 32. [A][B][C][D] 37. [A][B][C][D]

23. [A][B][C][D] 28. [A][B][C][D] 33. [A][B][C][D] 38. [A][B][C][D]

24. [A][B][C][D] 29. [A][B][C][D] 34. [A][B][C][D] 39. [A][B][C][D]

25. [A][B][C][D] 30. [A][B][C][D] 35. [A][B][C][D] 40. [A][B][C][D]

阅读下面短文，从短文后各题所给的四个选项（A、B、C和D）中，选出可以填入空白处的最佳选项（共20小题；每小题5分，满分100分）。

You may be surprised by a bird known as the starling（掠鸟）. They are small or middle-sized and 21 in Asia, Europe and Africa, where they 22 mainly fruit and insects. However, when they come together in large groups, they perform the most 23 formations（队形）that biologists, physicists, mathematicians and engineers find very 24 .

Large groups of starlings are known as a murmuration. It has always been

believed that flying in murmurations can 25 themselves from their natural

enemies. With so many birds flying together, it’s difficult to 26 just one of them.

Other 27 of the murmuration are that the starling is a very social bird. They

28 together to attract the attention of other starlings that my wish to 29 them.

The large group helps each bird to keep warm. It has also been said that the birds

30 with one another about different feeding areas.

31 can really explain how starlings are able to create these wonderful flying

murmurations without 32 one another. It is only with recent developments in

high powered video analysis that scientists are beginning to 33 . The Woodland

Trust in England explains, “Each starling 34 the movement of six birds flying

beside it. They have lightning-fast reactions where they can 35 within 100

milliseconds. If one bird changes speed or direction, those around it change. too.”

The best time to see a murmuration is in either autumn or winter. The birds 36 perform before it gets dark at night. There have to be about 200 to 300 birds to 37 a murmuration. In 1990, over six million starlings grouped together one evening in southwest England.

There is growing 38 that these wonderful sights may become a thing of the past. In recent years the starling population has fallen 39 in some areas of the world. This is because of the 40 in chemicals used in farming and a shortage of feeding sites.

21. A. recognized B. found C. trained D. admired

22. A. eat B. require C. keep D. collect

23. A. terrible B. amusing C. important D. amazing

24. A. interesting B. natural C. boring D. awful

25. A. free B. separate C. protect D. remove

26. A. search B. destroy C. trouble D. attack

27. A. examples B. suggestions C. explanations D. discussions

28. A. race B. fight C. fly D. guide

29. A. join B. accept C. help D. guide

30. A. compete B. connect C. celebrate D. communicate

31. A. No one B. Someone C. Everyone D. Anyone

32. A. depending on B. crashing into C. waiting for D. worrying about

33. A. predict B. understand C. agree D. imagine

34. A. follows B. supports C. covers D. mixes

35. A. speed B. process C. react D. notice

36. A. usually B. possibly C. finally D. certainly

37. A. design B. lead C. form D. divide

38. A. interest B. concern C. hope D. opposition

39. A. partly B. equally C. smoothly D. rapidly

40. A. success B. progress C. change D. increase

Keys to Test (4)：