题目内容
（请给出正确答案）
Why does the repair process of the DNA may finally fail？
A．Because short-wave radiant energy breaks the strands of the DNＡ.
B．Because the DNA may produce a colony of cancer cells.
C．Because enzymes work to rearrange the DNA into a new order.
D．Because the patient is exposed to UV form. time to time.
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更多“Why does the repair process of…”相关的问题
Why didn't Mark get up at his usual time？
A．Because the repair man borrowed his car.
B．Because he does not own a car.
C．Because had to take the bus to work.
Why does the woman ask for the man's address？
A．To send him a book.
B．To get together with him.
C．To repair something at his home.
听力原文：M: The air conditioner in my room is broken and I can't work.
W: Why not go to the office？
Q: What does the woman mean？
(3)
A．The man can sleep in the office.
B．She can have someone to repair the air-conditioner.
C．She can work without air conditioning.
D．The man can do his work elsewhere.
听力原文：M: The air conditioner in my room is broken and I can't work.
W: Why not go to the office？
Q: What does the woman mean？
(2)
A．The man can sleep in the office.
B．She can have someone to repair the air conditioner.
C．She can work without air conditioner.
D．The man can do his work in the office.
听力原文：W: My watch stopped again. And I just got a new battery.
M: Why don' t you take it to Smith' s Jewelry？ They can check it for you.
Q: What does the man mean？
(13)
A．The woman should buy some Jewelry instead.
B．The woman should buy a battery from the Smith's Jewelry.
C．He knows what' s wrong with the woman' s watch.
D．The jewelry store can probably repair the woman' s watch.
M: No. Ever since I bought it, it gains about five minutes a day. So I've got to have it repaired.
Q: Why does the man repair his watch？
(16)
A．Because his watch has stopped.
B．Because his watch is slow.
C．Because his watch is fast.
D．Because his watch is lost.
A．Paula doesn"t pay the rent on time.
B．She has to buy a new dishwasher.
C．Paula repairs the dishwasher without her permission.
D．She can"t find anyone to repair the dishwasher.
First, the person must recognize that there is a problem. For example, Sam' s bicycle is bro ken. Sam must【24】that there is a problem with his bicycle. Next the person must【25】the problem. Sam can repair his bicycle, he must know why it does not work. Now the person must look for【26】that will make the problem clearer and lead to possible solutions. Suppose Sam decides that his bike does not work because there is something wrong with the brakes. At this time he can look in his bicycle repair book and【27】his friends at the bike shop. After【28】.the problem, the person should have several suggestions for a possible solution. In the end, one suggestion seems to be the solution【29】the problem. Sam, for example, suddenly sees there is a piece of chewing gum(口香糖) stack to a brake. What he will do is to clean the brake. Finally the solution is【30】. Sam does it and finds his bicycle works perfectly. In short he has solved the problem.
(56)
A．serious
B．usual
C．similar
D．common
First, the person must 41 that there is a problem. For example, Sam's bicycle is 42 , and he cannot ride it to class as he usually does. Sam must see that there is a problem with his bicycle. Next, the thinker must 43 the problem. Before Sam can repair his bicycle, he must find the reason why it does not work. For instance, 44 _______________ He must take his problem more specific.45 _____________________________________. For instance, suppose Sam decided that his bike does not work because there is something wrong with the gear wheels. At this time, he can look in his bicycle repair book and read about gears. He can talk to his friends at the bike shop. He can look at his gears carefully. 46 _____________________________________________. Take Sam as an illustration. His suggestions might be: put oil on the gear wheels; buy new gear wheels and replace the old ones; tighten or loosen the gear wheels.
请在(36)处填上最佳答案.
【C5】______, the person must recognize that there is a problem. For example, Sam's bicycle is broken, and he cannot ride it to class as he usually does. Sam must【C6】______ that there is a problem with his bicycle.
Next the person must【C7】______ the problem. Before Sam can repair his bicycle, he must know why it does not work. For example, he must【C8】______ the parts that are wrong.
Now the person must look for【C9】______ that will make the problem clearer and lead to【C10】______ solutions. For example, suppose Sam【C11】______ that his bike does not work because there is something wrong with the brakes. 【C12】______, he can look in his bicycle repair book and read about brakes, talk to his friends at the bike shop, or look at his brakes carefully.
After【C13】______ the problem, the person should have several suggestions for a possible solution. Take Sam as an example【C14】______ , his suggestions might be: tighten or loosen the brakes; buy new brakes and change the old ones.
In the end, one【C15】______ seems to be the solution to the problem. Sometimes the final idea comes quite unexpectedly because the thinker suddenly sees something in a different way. Finally the solution is tested. Sam does it and finds his bicycle works perfectly. In short he has solved the problem.
【C1】
A．serious
B．usual
C．similar
D．common
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