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The sea is very big. Look at a map of the world. There is less land than sea. The sea cove

rs three quarters of the world.

The sea is very deep in some places. There is one spot, near Japan, where the sea is nearly 11 kilometres deep. The highest mountain in the world is about 9 kilometres high. If that mountain were put into the sea at that place, there would be 2 kilometres of water above it.

If you have swum in the sea,you know that it is salty. You can taste the salt. Rivers,which flow into the sea, carry salt from the land into the sea. Some parts of the sea are less salty than other parts. There is one sea, called the Dead Sea, which is very salty. Because it is very salty, swimmers cannot sink! Fish cannot live in the Dead Sea.

In most parts of the sea, there are plenty of fishes and plants. Some live near the top of the sea.Others live deep down. There are also millions of tiny living things that float in the sea. These floating things are very small. It is hard to see them. Many fish live by eating them.

The sea can be very cold. Divers, who dive deep down in the sea, know this. On the top thewater may be warm. When the diver goes downwards, the sea becomes colder and colder.

Another thing happens. When the diver goes deeper, the water above presses down on him. It’ squeezes him. Then the diver has to wear clothes made of metal. One spot of the sea near Japan is____.

A.nearly nine kilometres deep

B.almost eleven kilometres high

C.two kilometres above the highest mountain in the world

D.two kilometres deeper than the height of the world, s highest mountain

Which of the following is NOT true?A.Fish cannot live in the salty sea

B.The sea gets its salt from rivers

C.Different parts of the sea have different amount of salt

D.There is no fish in the Dead Sea

Fish in the sea live____.A.near the top of the sea

B.deep down in the sea

C.at different depth of the sea

D.on tiny living things in the sea

The deeper divers goes down in the sea,____.A.the warmer the sea becomes

B.the colder they find the sea is

C.the less the water above presses down

D.the heavier their clothes must be

请帮忙给出每个问题的正确答案和分析,谢谢!

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更多“The sea is very big. Look at a…”相关的问题
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第2题
完成下列各题 A The sea is very big. Look at a map of
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第4题
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第5题
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第7题
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第8题
Very high waves are destructive when they strike the land. Fortunately, this seldom happen
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第9题
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Very high waves are destructive when they strike the land. Fortunately, this seldom happens. One reason is that out at sea, waves moving in one direction almost always run into waves moving in a different direction. The two sets of waves tend to cancel each other out. Another reason is that water is shallower near the shore. As a wave gets closer to land, the shallow bottom helps reduce its strength.

But the power of waves striking the shore can still be very great. During a winter gale, waves sometimes strike the shore with the force of 6,000 pounds for each square foot. That means a wave, 25 feet high and 500 feet along its face, may strike the shore with a force of 75 million pounds.

Yet the waves, no matter how big or how violent, affect only the surface of the sea. During the most raging storms, the water a hundred fathoms(600 feet) beneath the surface is just as calm as on a day without a breath of wind.

According to the passage, destruction caused by high waves occurs ______.

A.regularly

B.rarely

C.always

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第10题
Some years ago the captain of a ship was very interested in medicine. He always took medic
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One day a lazy sailor on his ship pretended to be ill. He lay on his bunk(铺) and groaned as if he were very sick. The captain came to see him and was very pleased to have a patient to look after. He told the man to rest for a few days and made the other sailors do his work. Three days later another sailor pretended that he had something wrong with his chest. Once more the captain looked in his medical books and told the "sick" man to have a rest.

The other sailors were very angry because they had more work to do. The patients had the best food and laughed at their friends when the captain was not looking. At last the mate (船长副手) decided to cure the "sick" men. He mixed up some soap, soot(烟灰) , glue(胶水) and other unpleasant things. Then he obtained permission from the captain to give his medicine to the "sick" men. When they tasted the medicine, they really did feel ill. It was so horrible that one of the patients jumped out of his bunk, ran up on deck and climbed the highest place on the ship. He did not want any more medicine.

The mate told both of the men that they must take the medicine every half an hour, night and day. This soon cured them. They both said they felt better and wanted to start work again. The captain realized that the men tried to deceive him so he made them work very hard for the rest of the voyage.

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A.test the captain's knowledge of medicine

B.be free from work

C.have the best food on the ship

D.play a joke on his friends

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第11题
Wben the error is small, the statistical principles used in dealing with it are ______ whe
n the error is big.

A.simpler than

B.more difficult than

C.not yet understood

D.the same as

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