短文改错 The sea is the largest unknown part of our world. It covers seventy-one per

The sea is the largest unknown part of our world. It covers seventy-one percent of the earth. There is still many to be

1．________

discovered about this vast blanket of water, luck, no single

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nation had the task of learning all what we need to know about

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the ocean. The world sea belonged to no one; it surrounds

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the earth and is owned by us all, scientists in many different countries are working to explain its mysteries. Some are

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studying ways of bringing the ocean's huge supply of water to the deserts of the world.

Others hope to control the weathers

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by learning more about the exchange of heat and wet among the

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ocean and air. Others are studying the ways of which sound travels

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and is affected by water and heat. Which happens when

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the sea water touches different elements are another subject of

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study. These are just a few questions to which scientists are devoting their energies. Many scientists are now making a study of animal and plant life in the oceans.

1．many→much

2．Luck→Luckily

3．what→that

4．belonged→belongs

5．√

6．weathers→weather

7．among→between

8．of→in

9．Which→What

10．are→is