TEST 1 - Hỏi đáp

Người hay giúp bạn khác trả lời bài tập sẽ trở thành học sinh giỏi. Người hay hỏi bài thì không. Còn bạn thì sao?

Fill one suitable word in each space of the following passage

About two hunderd years ago man lived in great harmony with his environment......(1)........industry was not much developed. Today the situation is quite different.People all over the world are worried about......(2)......is happening to the enviroment, because od modern industry and the need for more and more energy. Newspaper and magazines write about water pollution, air pollution and land pollution.

Why is.......(3)......so much discussion about pollution ? After all, people have been .......(4)....... the world around them for thousands of years. But in the past, there were not many people and lots of room in the world so they could move to another place when their sattlements became ......(5).....

Now, however, many parts os the world are crowded, people live in big cities and much of our waste, especially waste from factories, electric power stations, the chemical industry and heavy industry is very dangerous. Much of this dangerous waste goes into the air and is carried by the ......(6)....... for great distance.

The earth is our home. We must take care of it, for ourselves and for the........(7)...... generations. This means keeping our environment clean. Ecologists, the scientists who study the relation between living ......(8).....and the environment point out the importance of this task. However, each of us must do everythingpossible to keep the land, air and water clean.

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