完形填空Every year about 40,000 people attempt to climb Kilimanjaro(乞力马扎罗山),

46. A. atmosphere B. experience C. experiment D. sight
47. A. seen           B. observed C. explored D. studied
48. A. scientists B. climbers C. locals D. officials
49. A. holding on to B. going back to C. setting out to D. giving way to
50. A. changes B. clears C. improves D. permits
51. A. Obviously B. Easily C. Absolutely D. Finally
52. A. keeping B. ruining C.replacing D. creating

答案38-42 DCBAC  43-47 ACDBA    48-52 BDADB