Nextautumn,whenyouseegeeseheadingsouthforthewinter,fl...

问题详情：

   Next autumn, when you see geese heading south for the winter, flying along in 'V' formation, you might consider what science has discovered as to why they fly that way.  41   each bird flaps its wings, it creates uplift for the bird   42    following. By flying in 'V' formation, the whole flock(群)   43    at least 71 percent greater flying range than if each bird flew44     .

   When a goose falls out of formation, it suddenly feels the drag and   45     of trying to goal one--and quickly gets back into formation to take   46     of the powerful lifting of the bird in front. When the head goose gets   47    , it goes back in the wing and another goose flies tothe point. Geese honk(雁叫) from behind to    48      those up front to keep up their49    .

   Finally--and this is important--when a goose gets sick or is wounded by gunshot, and falls out

of    50   , two other geese fall out with that goose and   51     it down to   52     help and protection. They stay with the fallen goose  53    it is able to fly or it dies, and   54do they launch out on their own, or   55    another formation to catch up with their own. People who share   56     direction and sense of community can get   57    they are going more quickly and easily, because they are traveling on the pushing force of one another. If we have as much sense as a goose, we will stay in formation with those people who are    58in the same  59    as we are. If we have the sense of a goose, we will   60     each other like that.

41. A. Before            B. After              C. As                D. Since

42. A. distantly           B. immediately        C. suddenly           D. naturally

43. A. forms              B. adds              C. decreases          D. shortens

44. A. on its own           B. at random          C. without aim        D. at ease

45. A. excitement          B. attempt            C. temptation         D. resistance

46. A. control             B. charge            C. advantage          D. place

47. A. hungry             B. thirsty             C. sick               D. tired

48. A. remind             B. encourage          C. require            D. warn

49. A. image              B. formation          C. speed             D. distance

50. A. control             B. order              C. formation          D. work

51. A. follow              B. drive              C. pull               D. lay

52. A. beg                B. lend              C. desire             D. supply

53. A. when               B. unless             C. since              D. until

54. A. only if              B. even so            C. only then           D. at no time

55. A. with                B. by                C. for                D. against

56. A. different            B. clear              C. common           D. unusual

57. A. what               B. when              C. where             D. how

58. A. walking             B. heading            C. dreaming          D. escaping

59. A. way                B. direction           C. field              D. work

60. A. stand by            B. get to know         C. compete with       D. believe in

【回答】

41-45 CBBAD   46-50 CDBCC   51-55 ABDCA    56-60 CCBBA

知识点：科普环保类

题型：完型填空