（）可用于室内消防给水系统。A、聚乙烯类管道 B、聚氯乙烯类管道 C、铝塑复合管 D

第二节 完形填空（共15小题；每小题2分，满分30分）
阅读下面短文，掌握其大意，然后从36-50各题所给的四个选项（A、B、C、D）中，选出最佳选项，并在答题卡上将该项涂黑。
When a person is curious about something, it means he is   36   in it and wishes to know something about it. We can say he has curiosity about that thing. There is nothing wrong with curiosity in itself. Whether it is good or bad  37  on what people are curious about. 
Curiosity   38   can be silly or wrong. Some people with nothing to do are   39   of curiosity about what their neighbours are doing. They are anxious to know what they are eating or drinking, what they are   40   home or taking outside, or why they have come home so early or late. To be interested in these things is silly because they are not important. It is none of their  41   to know what their neighbours do or are doing. Such curiosity is not only foolish but also harmful. Most probably, it may   42   to small talk which often brings harm, shame or disrespect to   43   , and thus   44   their feelings. 
On the other hand, there is a noble (高尚的) curiosity — curiosity of wise men, who wonder at all the great things and try to find out all they   45   about them. Columbus would never have found America if he had not been   46   . James Watt would not have made the steam engine   47   his curiosity about the rising of the kettle lid. All the discoveries in human history have been made   48  a result of curiosity,   49   the curiosity is never about unimportant things which have   50   — or nothing to do with the happiness of the public. 

36. A. engaged 37. A. keeps	B. pleased B. puts	C. interested C. takes	D. excited D. depends
38. A. always	B. sometimes	C. seldom	D. never
39. A. full 40. A. taking 41. A. work 42. A. refer 43. A. other	B. fond B. bringing B. housework B. lead B. others	C. proud C. going C. duty C. cause C. another	D. out D. coming D. business D. bring D. the others
44. A. hurts	B. effects	C. shows	D. destroys
45. A. need	B. must	C. may	D. can
46. A. famous	B. careful	C. curious	D. hard
47. A. for	B. without	C. with	D. in
48. A. as	B. in	C. on	D. of
49. A. so	B. however	C. but	D. or
50. A. much	B. little	C. some	D. any