Section B
Directions: Complete the following passage by using the words in the box. Each word can only be used once. Note that there is one word more than you need.

A．change    B．reverse     C．constant      D．condition     AB．Recognizing AC．Interrupting   AD．Decent    BC．thus     BD．Follow    CD．speedily

Living one’s life is really like driving on a highway. First, the driver must carefully examine the  
41   of his car, just as he cares for his health for a good life . Once he enters into the highway, he must    42   certain rules for his own safety. It can also be said that he must obey certain rules of society when living as a   43   adult. For example, on the highway, he is required to keep a   44   speed which can be compared with his continuous activities through his life. Neither driving nor living must be taken at too high a speed nor at too slow a speed. If he drives too 45 , the police will give him a ticket, just as he will be arrested when he breaks the law. Acting too conservatively, he will be called an out-of-date person  46   the others driving at the proper speed. When he wants to   47   lanes, he must give careful attention to every direction of his car . It is sometimes dangerous to change the way of life unless he can be sure of completion by doing so. He should not make any unnecessary changing of lanes which gives him only danger.
Finally, he must discover where he is now by   48   some signs appearing now and then. If he takes the wrong turning, he must return to the right path as soon as he can. But he may   49 lose time 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. But if he is careful and serious enough, they will provide him much pleasure.