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20.Early one morning,more than a hundred years ago,an American inventor called Elias Howe finally fell asleep.He had been working all night on the design of a sewing machine but he had run into a very difficult problem:It seemed impossible to get the thread to run around the needle without any problems.
Though he was tired,Howe slept badlyHe turned and turned.Then he had a dream.He dreamt that he had been caught by terrible savages whose king wanted to kill him and eat him unless he could build a perfect sewing machine.When he tried to do so,Howe ran into the same problem as before.The thread kept getting caught around the needle.The king flew into the cage and ordered his soldiers to kill Howe.They came up towards him with their spears raised.But suddenly the inventor noticed something.There was a hole in the tip of each spear.The inventor awoke from the dream,realizing that he had just found the answer to the problem.Instead of trying to get the thread to run around the needle,he should make it run through a small hole in the center of the needle.This was the simple idea that finally made Howe design and build the first really practised sewing machine.
Elias Howe was not the only one in finding the answer to his problem in this way.Thomas Edison,the inventor of the electric light,said his best ideas came into him in dreams.So did the great physicist Albert Einstein.Charlotte Brone also drew in her dreams in writing Jane Eyre.
To know the value of dreams,you have to understand what happens when you are asleep.Even then,a part of your mind is still working.This unconscious(无意识的),but still active part understands your experiences and goes to work on the problems you have had during the day.It stores all sorts of information that you may have forgotten or never have really noticed.It is only when you fall asleep that this part of the brain can send messages to the part you use when you are awake.However,the unconscious par acts in a special way.It uses strange images which the conscious part may not understand at first.This is why dreams are sometimes called"secret messages to us".

21.The problem Howe was trying to solve wasD.
A.what kind of thread to use
B.how to design a needle which would not break
C.where to put the needle
D.how to stop the thread from getting caught around the needle
22.Thomas Edison is spokenof becauseB.
A.he also tried to invent a sewing machine  
B.he got some of his ideas from dreams
C.he was one of Howe's best friends        
D.he also had difficulty in falling asleep
23.Dreams are sometimes called"secret messages to ourselves"becauseA.
A.strange images are used to communicate ideas
B.images which have no meaning are used
C.we can never understand the real meaning
D.only specially trained people can understand them.

分析 本文属于说明文阅读,作者通过这篇文章主要向我们描述了Elias Howe 一直致力于缝纫机的设计,却遇到线总是被针抓住的问题,他在梦境中受到了启发,最终制出缝纫机,还有其他很多伟大的科学家也都曾经受到梦的启发,由此可见,睡着了你的思想仍在工作,帮助你解决白天的困难.

解答 31.D.细节理解题.根据文章第一段"It seemed impossible to get the thread to run around the needle without any problems",这似乎是不可能做到的,令线在针周围毫无问题的转,因此他的困难是如何阻止线被针抓住;故选D.
32.B.细节理解题.根据文章第一段"Thomas Edison,the inventor of the electric light,said his best ideas came into him in dreams",Thomas Edison发明了电灯,说他的最好的想法是在梦中形成的;故选B.
33.A.推理判断题.根据文章最后一段"This unconscious,but still active part understands your experiences and goes to work on the problems you have had during the day"这种无意识的但仍然活跃的部分理解你的经历并且继续去解决你白天所遇到的问题,可知梦境的神秘是奇怪的想法被用来交流思想;故选A.

点评 考察学生的细节理解和推理判断能力,做细节理解题时一定要找到文章中的原句,和题干进行比较,再做出正确的选择.在做推理判断题不要以个人的主观想象代替文章的事实,要根据文章事实进行合乎逻辑的推理判断

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