is unknown to us all. A. Where did he get it B. Where he got it C. That where he got D. Which he got it 题目和参考答案——青夏教育精英家教网—

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_________ is unknown to us all.

A. Where did he get it B. Where he got it C. That where he got D. Which he got it

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Once upon a time a king, in the company of his ministers, went to the imperial garden for a walk. When he was walking around a pond, a strange idea 26 upon him and he asked, “How many buckets(桶) of water are there in the pond?” The ministers looked at each other, 27 to give an answer.
Rather 28 , the king ordered, “You have three days’ grace. Any one who offers an answer will be handsomely awarded. Those who fail will be 29 .”
The time limit was due in the twinkling（闪烁）of an eye, yet the ministers were still at their wit’s end. At this time a child appeared who declared that he knew the answer. The king told his 30 ministers to go with the child for the measurement. To their 31 , the child refused the suggestion with a smile, “It is very easy. No 32 to go to the pond.” This made the king laugh 33 , “Alright, let us know what it is.” The child winked (眨眼) and said, “That 34 on the size of the bucket. If it is as big as the pond, there is one bucket of water; if it is half as big, two buckets; if one third as big, three buckets; if...”“Stop! That’s it. You’ve got the 35 .” The king was satisfied and the child was duly rewarded.
Why did the ministers feel it so different to settle the problem? Because they fell in a pitfall (陷阱), following a wrong way of thinking. People’s thinking often goes a habitual way — the beaten track of straightforwardness. 36 is a static (静态的) way presupposing every object definite and certain, i.e. the size of the pond and the bucket should be clearly 37 . If one of them is unknown, it will be difficult to do the measurement, let alone 38 . Why not change your mode of thought — from static to dynamic（动态的）, from concrete to 39 ? If you adopt an indirect way and try to find out the proportional relation between the pond and the bucket, you’ll get an answer — flexible yet 40 to solve the problem.
Sometimes to get out of the difficulty one must change one’s way of thinking, or simply change one’s approach towards a problem.

Did you know that a turtle（乌龟）can lay 12 eggs in one minute? A large sea turtle lays around 150 eggs at a time. She lays all these eggs in just a few minutes.

Large sea turtles live in the warm seas of the world. Except for when they lay their eggs, they spend their whole lives in the water. When it is time to lay their eggs, the females(雌性) swim to land.

They usually return to the place where they themselves were born. How they find their way back there is unknown.

When they reach shore, the big, heavy turtles crawl slowly up to the high water mark. Using their flippers, they pull themselves along the sand. They must struggle like mountain climbers.

When they finally reach dry sand, they rest before beginning the difficult task of laying eggs.

The turtles lay the eggs in deep holes and cover them with warm sand. The sand protects the eggs from harm. Then the females leave them. After a few weeks, if you happened to be walking along the beach, you might see the sand begin to shake. You may see tiny black balls coming out of the sand. The tiny heads of baby turtles!

1.Which sentence expresses the main idea?

A．Sea turtles have interesting life habits.

B．Sea turtles swim to shore to lay their eggs.

C．Large sea turtles lay their eggs in special ways.

D．Sea turtles enjoy staying in the sand.

2.The first sentence lets us know that this passage is about __________.

A．turtles

B．oceans

C．time

D．speed

3. Turtles bury their eggs to protect them from ____________.

A．deep water

B．danger

C．heat

D．bad weather

4.We can conclude from this passage that ___________.

A．many turtles die while swimming to shore

B．female turtles protect their babies

C．once turtles land, they never return to the sea

D．the job of laying eggs takes great strength

5.The writer compares turtles to climbers ___________.

A．because they lay their eggs in mountain areas

B．to give you a picture of how hard they work

C．to tell you that they like to climb

D．to show that mountain climbers are as slow as turtles

There seems never to have been a civilization without toys, but when and how they developed is unknown． They probably came about just to give children something to do．

　　In the ancient world, as is today, most boys played with some kinds of toys and most girls with another． In societies where social roles are rigidly determined, boys pattern their play after the activities of their fathers and girls after the tasks of their mothers． This is true because boys and girls are being prepared, even in play, to step into the roles and responsibilities of the adult world．

　　What is remarkable about the history of toys is not so much how they changed over the centuries but how much they have remained the same． The changes have been mostly in terms of craftsmanship, mechanics, and technology． It is the universality of toys with regard to their development in all parts of the world and their persistence to the present that is amazing． In Egypt, the Americas, China, Japan and among the Arctic （北极的） peoples, generally the same kinds of toys appeared． Variations depended on local customs and ways of life because toys imitate their surroundings． Nearly every civilization had dolls, little weapons, toy soldiers, tiny animals and vehicles．

Because toys can be generally regarded as a kind of art form, they have not been subject to technological leaps that characterize inventions for adult use． The progress from the wheel to the oxcart to the automobile is a direct line of ascent （进步）． The progress from a rattle used by a baby in 3,000 BC to one used by an infant today, however, is not characterized by inventiveness． Each rattle is the product of the artistic tastes of the times and subject to the limitations of available materials．

1.Which is a major factor leading to the different variations of toys?

A． Scientific advances and technological progress

B． Different local customs and lifestyles of different peoples

C． Craftsmanship, mechanics, and technology

D． The artistic tastes of the times and the limitations of available materials

2.Why do boys and girls play with different kinds of toys?

A． Because they are intended for different social roles and responsibilities．

B． Because boys like to invent and girls imitate．

C． Because boys play with their fathers while girls their mothers．

D． Because they will take up different jobs when they grow up．

3.One amazing aspect about the “universality of toys” is______．

A． They appeared all over the world almost at the same time in history．

B． They have not changed except in craftsmanship, mechanics, and technology．

C． Having existed for thousands of years, toys are still found all over the world today．

D． They are a kind of art form, which has been promoted by inventiveness．

How words came into being is unknown.All we assume is that some early men invented cortain sounds,in one way or another,to express thoughts and feelings,actions and things,so that they could talk with each other.Later they agreed upon certain signs,called letters,which could be put together to show those sounds,and which could be written down.Those sounds,whether spoken or written in letters,are called words.

The power of words,then,lies in their associations-the things they bring up to our minds.Words become filled with meaning for us by experience;and the longer we live,the more certain words bring back to us the happy and sad events of our past;and the more we read and learn,the more the number of words that mean something to us increases.

Great writers are those who not only have great thoughts but also express these thoughts in words which have powerful effects on our minds and feelings.This clever use of words is what we call literary style.Above all,the real poet is a master of words.He can express his meaning in words which sing like music,and which by their position and association can move men to tears.We should therefore learn to choose our words carefully and use then correctly,or they will make our speech silly and common.

58.We learn from the text that language might have begun with( )

A．expressions B．actions C．signs D．sounds

59.What is mainly discussed in Faragraph 2?

A．The ……of new words B．The importance of old words

C．The relation of human experience with words

D．The gradual change and development of words

60.In the last paragraph,what does the anthor suggest that we should do?

A．Use words skilfully B．Make musical speeches

C．Learn poems by heart D．Associate with listeners

The desire to make explorations is born with man. Wherever his imagination goes, man also has a strong wish to go. A large part human history is connected with the exploration of the world in which we live. Again and again people have set out with surprising courage and patience to look into unknown regions and lands to see what had not yet been seen, to make known the unknown. With kites, balloons and aircraft they left the ground to pass through the lower atmosphere. Now the outer space receives their attention.

Why should man take the trouble of conquering space? It is hard to list the specific practical benefits that will result in. But one knows, from past experience in other areas, that man will surely see and discover new things in space that will increase our scientific knowledge, and this new knowledge will find its way into valuable practical uses. What we learn about man himself, from his experience in space, and from the effects of space and the space flight environment on him, will be extremely valuable. The new techniques developed to carry out the exploration of space, and to keep man alive in space, will certainly find practical uses in everyday life in some way. The areas that will benefit are manifold. They include communication, generation of power, transportation and travel, food production, materials, fuels and many others. But to say definitely just what the practical results will be is almost impossible.

The main idea of the first paragraph is that __________.

A. man desires to explore what is unknown

B. man often goes wherever his dreams go

C. man is no longer interested in the study of the land and sea now

D. man’s history is the exploration of the world

The word “manifold” in the second paragraph probably means __________.

A. vast B. various C. valuable D. practical

The author seems to be in favor of__________.

A. doubting the necessity of the space exploration

B. the exploration of space

C. exploring more in space than in the sea

D. his experience in space

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