二、完形填空(20%)
Living one’s life is really like driving on a highway. First, to make a good driving, the driver must carefully examine the  31   of his car, just as he cares for his health for a good life.   32   he enters into the highway, he must   33   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   34   to keep a constant (不断的)  35  , which can be compared with his  36   activities through his life. Neither driving nor living must be taken at too  37   a speed nor at too slow a speed. If he drives too  38  , the police will give him a  39  , just as he will be arrested when he breaks the law.   40   too conservatively (保守地), he will be called an out-of-date person   41   the others driving at a(an)   42   speed. When he wants to change his lanes, he must give careful   43   to every direction of his car. It is sometimes dangerous to change the way of life   44   he can be sure of completion (完成,结束) by doing so. He  45   not make any unnecessary changing of lanes（车道）which gives him only danger. Finally, he must  46   where he is now by recognizing some 47   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  48   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.  49   if he is careful and serious enough,   50   will provide him with much pleasure.
31.  A. seats       B. condition       C. petrol     D. passengers
32.   A. Once        B. While        C. For         D. Although
33.   A. listen to       B. find           C. follow    D. insist on
34.   A. ordered        B. supposed        C. believed         D. hoped
35.   A. state        B. speed         C. mind      D. level
36.   A. outdoor        B. broken              C. good       D. continuous
37.   A. large        B. high          C. limited    D. expected
38.   A. speedily       B. slowly       C. Hurriedly  D. willingly
39.   A. ticket       B. lift                C. chance    D. hand
40.   A. Acting            B. Running         C. Getting    D. Working
41.   A. persuading    B. getting       C. Bothering  D. refusing
42.   A. average        B. normal       C. usual      D. fast
43.   A. notice       B. attention        C. signs       D. regards
44.   A. if                B. when         C. unless     D. because
45.   A. dare         B. need          C. may        D. should
46.   A. think       B. discover         C. prove      D. seem
47.   A. signs        B. signals       C. posters    D. symbols
48.   A. money            B. luck           C. time       D. trust
49.   A. Therefore     B. But            C. And        D. Then
50.   A. it           B. he           C. they       D. You