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Chuyển đổi dữ liệu02.01.2022
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A. Gas. B. Petrol. C. Hot wind. D. Steam.

Câu 8: What does the author mean by saying that electricity is flexible?

A. It is cheap and easy to use B. It can be made with ease.

C. It can be adapted to various uses D. It is used to drive motor engines.

Câu 9: What do we call machines that make electricity?

A. Pipes and radiators. B. Voltages.

C. Generators or turbines. D. Electric magnets.

Câu 10: The main forms of power used to generate electricity in Australia are ____.

A. water and coal B. wind and gas

C. atomic power and water D. sunlight and wind power

Câu 11: The word "they" in the last paragraph refers to ______.

A. new ways B. harmful effects C. scientists D. the tides

Câu 12: Electric magnets are used in steel works to ______.

A. lift heavy weights up to ten tons B. heat the molten steel

C. test the steel for strength D. boil a jug of water

Câu 13: The advantage of harnessing the power of the tides and of sunlight to generate electricity is that they ______.

A. are more reliable B. do not require attention

C. do not pollute the environment D. are more adaptable

Câu 14: Which of the following power sources causes pollution by emitting harmful gases?



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