It's ten years since the scientist ______爱下问搜题

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问题选择题

It's ten years since the scientist _______on his life's work of discovering the valuable chemical.

A．made for

B．set out

C．took off

D．turned up

答案

答案：B

此题考短语动词。句子合理的意思应是：自从那位科学家着手／开始去为发现这一有价值的化学物质而工作。至今已经10年。选B项表开始或着手某事，即set out to do sth.或set out on sth.正合理。make for不是固定短语，只能解释为“为……而做”，take off当“脱下（衣物）、从……取下……、（飞机）起飞”等解，turn up意为“出席、露面”，这三项均不合题意。

解答题

教室前面的墙长7米，宽4米，墙上有一块面积是4平方米的黑板，要粉刷教室前面墙的面积，粉刷面积是多少？

完形填空

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四个选项（A、B、C和D）中选出可以填入空白处的最佳选项，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 1 of his car, just as he cares for his health for a good life. Once he enters into the highway, he must 2 certain rules for his own safety. It also can be said that he must obey certain rules of 3 when living as a decent (体面的) adult. For example, on the highway, he is 4 to keep a constant speed which can be compared with his 5 activities through his life. Neither driving nor living must be taken at too 6 a speed nor at too slow a speed. If he drives too 7 , the police will give him a ticket, just as he will be arrested when he breaks the law. 8 too conservatively (保守的), he will be called an out-of-date person 9 the others driving at the proper speed. When he wants to change his lanes, he must give careful 10 to every direction of his car. It is sometimes 11 to change the way of life 12 he can be sure of completion by doing so. He 13 not make any unnecessary changing of lanes which gives him only danger. Finally, he must 14 where he is now by recognizing some 15 appearing now and then. If he takes the wrong way, he must return to the right as 16 as he can. But he may thus lose 17 and energy both on the road and in life.
18 the whole, driving on a highway and living one’s life are both hard work. 19 if he is careful and serious enough, 20 will provide him much pleasure.

C．interrupting

D．troublesome