题目内容
________ is unknown to me．
- A.Where he is
- B.Where is he
- C.He is where
- D.Is he where
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.
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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?
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A．Sea turtles have interesting life habits. |
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B．Sea turtles swim to shore to lay their eggs. |
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C．Large sea turtles lay their eggs in special ways. |
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D．Sea turtles enjoy staying in the sand. |
2.The first sentence lets us know that this passage is about __________.
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A．turtles |
B．oceans |
C．time |
D．speed |
3. Turtles bury their eggs to protect them from ____________.
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A．deep water |
B．danger |
C．heat |
D．bad weather |
4.We can conclude from this passage that ___________.
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A．many turtles die while swimming to shore |
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B．female turtles protect their babies |
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C．once turtles land, they never return to the sea |
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D．the job of laying eggs takes great strength |
5.The writer compares turtles to climbers ___________.
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A．because they lay their eggs in mountain areas |
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B．to give you a picture of how hard they work |
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C．to tell you that they like to climb |
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D．to show that mountain climbers are as slow as turtles |