第二节:完形填空（共20小题；每小题1分，满分20分）
阅读下面短文，从短文后各题所给的A、B、C、D四个选项中，选出最佳选项，并在答题卡上将该项涂黑。
Rest is critical to life and work and a positive attitude towards rest needs to be maintained. Enough rest is significant to our body and mind   36   a lack of adequate rest, as well as  __37__ attitudes to rest, will do great harm to our health.
Rest is vital to our ability to   38   at our best. Recent news stories report that scientists are learning surprising things about the importance of sleep. There is enough __39_  suggesting that rest will refresh us,  40   our body and mind to work efficiently. Besides, rest is important for   41   that; it is helpful in setting   42   goals and deciding what goals to attain first. Those who are caught up in extremely busy lives   43   the time to think about what they are doing and to make objective   44  , which blocks the maximization of their   45  .
On the contrary, lack of adequate rest damages brain function, so much so that sleep experts have been able to   46   drops in IQ in patients who are   47   of sleep. Other studies have presented a negative effect on body movements in sleep-wanting subjects. It should not, therefore, be a   48   that the California Highway Patrol has stated that sleep-wanting drivers are as great a   49   to road safety as are drunken drivers.
However, rest is widely   50   by some people. Instead of sleep, they go to pubs and clubs   51   what they call social drinking or having a smoke with friends and they   52__   that this kind of entertaining is rest. Nowadays, the economy forces people to drink and gamble for the sake of the   53   one moves in. The truth is that rest means not using our  _54 _ both physically and mentally, even spiritually. We need to rest correctly and   55  ; otherwise, tiredness and illness will occur.
36. A. when                  B. though                      C. until                    D. while
37. A. critical                B. misleading                C. puzzling                 D. ambiguous
38. A. survive                B. create                       C. function                 D. advance
39. A. evidence              B. theory                      C. belief                  D. information
40. A. encouraging         B. enabling                 C. persuading             D. concentrating
41. A. more than            B. rather than                C. other than              D. less than
42. A. ideal                   B. appropriate               C. professional            D. high
43. A. afford                 B. expect                      C. lack                       D. waste
44. A. comments            B. complaints                C. attempts                 D. decisions
45. A. potential              B. limit                         C. vision                    D. goal
46. A. predict                B. evaluate                    C. measure                 D. assume
47. A. short                   B. afraid                       C. full                        D. tired
48. A. fact                     B. warning                    C. rule                     D. surprise
49. A. burden              B. reminder                   C. threat                     D. blow
50. A. accepted              B. valued                      C. abandoned              D. misunderstood
51 A. with                     B. like                         C. as                          D. for
52. A. claim                  B. suggest                     C. announce               D. promote
53. A. traps                   B. circles                      C. mysteries               D. troubles
54. A. judgment             B. time                         C. labor                     D. power
55. A. completely          B. partly                       C. sufficiently             D. permanently