问题 解答题

我校开办了数学、英语、美术、书法4个兴趣小组,每个学生最多参加两个(可以不参加)。想一想:至少在多少个学生中,才能保证有两个或两个以上的学生参加兴趣小组的情况完全相同?

答案

12个。提示:最多参加两个(可以不参加)一共有以下11种情形:参加:①数学②英语③美术④书法⑤数学,英语⑥数学,美术⑦数学,书法⑧英语,美术  ⑨英语,书法⑩美术,书法,不参加:把这11种情形看做11个抽屉。

解答题
完形填空

第二节、完形填空(共20小题;每小题1分,满分20分)

When a person is curious about something, it means he is interested in it and wishes to know something about it. There is   36   wrong with curiosity(好奇) in itself. Whether it is good or bad   __37   on what people are curious about.

Curiosity   38   can be foolish or wrong. Some people with nothing to do are   39   of curiosity about what their neighbours are doing. They have a strong wish to know what they are   __40   home or taking outside, or why they have come home so   41 __ or late. To be interested in these things is foolish because it is none of   42   business to know what their neighbours do or are doing. Such curiosity is not only foolish but also   43  . For most probably, it may lead to a small talk   44   often brings harm, loss of honour or disrespect to others, and thus   45   their feelings.

On the other hand, there is a   46  curiosity --- the curiosity of wise men, who  47   at all the great things and try to find out all they   48 learn about them. Columbus could   49   have found America if he had not been   50  . James Watt would not have made the steam engine  51_   his curiosity about the rising of the kettle lid(水壶盖). All the   52  in human history have been made as a   53  of curiosity,   54 _ the clever curiosity is never about unimportant things which have   55   or nothing to do with the happiness of the public.

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

37. A. keeps           B. puts                  C. takes                 D. depends

38. A. always         B. sometimes         C. unusually          D. seldom

39. A. full             B. certain                     C. proud                D. careful

40. A. taking          B. bringing            C. going                D. coming

41. A. quickly        B. hurriedly           C. early                 D. happily

42. A. our              B. your                 C. their                 D. his

43. A. interesting    B. useful               C. harmful             D. proper

44. A. who            B. which               C. when                D. where

45. A. hurts           B. injures                     C. breaks               D. damages

46. A. terrible        B. sudden              C. strange              D. clever

47. A. expect         B. like                   C. wonder             D. doubt

48. A. need            B. must                 C. may                  D. can           

49. A. never           B. certainly            C. surely               D. probably

50. A. famous        B. careful                     C. curious              D. hard

51. A. for                     B. without             C. with                  D. in

52. A. products      B. goods                C. discoveries        D. machines

53. A. reason         B. product             C. fruit                  D. result

54. A. but                     B. however            C. so                     D. or

55. A. little            B. few                   C. some                 D. any