第二节完形填空（共20小题；每题1.5分，满分30分）
阅读下面短文，掌握其大意，然后从36-55各题所给的四个选项（A、Ｂ、Ｃ和Ｄ）中选出最佳选项，并在答题卡上将该项涂黑。
Living one’s life is really like driving on a highway. First, to make a good driving, the driver must carefully examine the   36   of his car, just as he cares for his health for a good life.   37  he enters into the highway, he must   38   certain rules for his own safety. It also can be said that he must obey certain rules of society when living as a decent (体面的) adult. For example, on the highway, he is   39  to keep a constant (不断的)   40  , which can be compared with his   41  activities through his life. Neither driving nor living must be taken at too   42   a speed nor at too slow a speed. If he drives too   43 , the police will give him a   44  , just as he will be arrested when he breaks the law.   45  too conservatively (保守地), he will be called an out-of-date person   46  the others driving at a(an)   47   speed. When he wants to change his lanes, he must give careful   48  to every direction of his car. It is sometimes dangerous to change the way of life   49   he can be sure of completion (完成,结束) by doing so. He   50  not make any unnecessary changing of lanes which gives him only danger. Finally, he must   51   where he is now by recognizing some  52  appearing now and then. If he takes the wrong way, he must return to the right as soon as he can. But he may thus lose   53   and energy both on the road and in life. On the whole, driving on a highway and living one’s life are both hard work.   54   if he is careful and serious enough,   55  will provide him with much pleasure.
36.                               A. seats                       B. condition                C. petrol    D. passengers
37.     A. Once                   B. While                C. For                        D. Although
38.     A. listen to               B. find                  C. follow                    D. insist on
39.     A. ordered                B. supposed            C. believed                 D. hoped
40.     A. state                    B. speed                 C. mind                      D. level
41.     A. outdoor               B. broken              C. good                      D. continuous
42.     A. large                   B. high                   C. Limited                 D. expected
43.     A. speedily               B. slowly                C. hurriedly                D. willingly
44.     A. ticket                   B. lift                     C. chance                   D. hand
45.     A. Acting                 B. Running             C. Getting                  D. Working
46.     A. persuading           B. getting               C. bothering               D. refusing
47.     A. average                B. normal               C. usual                      D. fast
48.     A. notice                  B. attention             C. signs                      D. regards
49.     A. if                        B. when                 C. unless                    D. because
50.     A. dare                    B. need                  C. may                       D. should
51.     A. think                   B. discover             C. prove                     D. seem
52.     A. signs                   B. signals               C. posters                   D. symbols
53.     A. money                 B. luck                   C. time                       D. trust
54.     A. Therefore             B. But                    C. And                       D. Then
55.     A. it                        B. he                      C. they                      D. you