We can never expect bluer sky unless we create less polluted world A. a;a B. a ;the C. the ;a D .the; the 题目和参考答案——青夏教育精英家教网—

题目内容

We can never expect ________bluer sky unless we create _____less polluted world

A. a;a B. a ;the C. the ;a D .the; the

【答案】

【解析】

试题分析：考查冠词：句意：如果我们不创造一个没有什么污染的世界，我们永远不能期待更蓝的天空。sky和world原本是独一无二的,但这里前面都有了形容词修饰,表示会出现一个什么样的sky和world,这里就属于泛反指了.，选A。

考点：考查冠词

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We can never expect____ bluer sky unless we create_____less polluted world.

A. a; a B. a; the

C. the; a D. the; the

We can never expect bluer sky unless we create less polluted world.

A. a; a B. a; the C. the; a D. the; the

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 smoothly around the needle.

Though he was tired,Howe slept badly.He 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 practical 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 Bronte 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 part 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 ourselves ”.

According to the passage,Elias Howe was_________.

A.the first person we know of who solved problems in his sleep

B.much more hard-working than other inventors

C.the first person to design a sewing machine that really worked

D.the only person at the time who knew the value of dreams

The problem Howe was trying to solve was_________.

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 prevent the thread from getting caught around the needle

Thomas Edison is spoken of because_________.

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

Dreams are sometimes called “secret messages to ourselves” because _________.

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

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A．people's fingerprints sometimes can be passed on from parents to children

B．people’s fingerprints are unique but identical twins may have the same fingerprints

C．using fingerprints is the only way to identify people

D．people's fingerprints will not change in all their lives

【小题2】We prefer to use fingerprints to identify people because ____.

A．we can never find the same set of fingerprints among human beings

B．finger impressions can be taken easily and quickly

C．fingerprints offer a most useful and foolproof way of identifying people

D．all of the above

【小题3】The word “foolproof” (Line 7, Para. 1) most probably means ____.

A．that is permanent	B．that is acceptable
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