Question

阅读理解

阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项。

Because of the energy crisis(危机), scientists in the oil－consuming nations(石油消费国) have become increasingly interested in the potential(潜能) of solar energy. Some experts think that the present supply of fuel(燃料) will not last until the middle of the next century. The problem that solar energy researchers face is how to make use of the sun's energy effectively and inexpensively. One of the most popular methods being tested at present uses roof－top solar collectors and underground storage tanks(罐). An advantage of properly working system of this type is that it will not create any environmental pollution. Another advantage of using solar energy is that the cost of the fuel, the sun's rays, is zero.

1．The main topic of this passage is ________.

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A．the shortage of fossil(化石) fuel

B．the problems that energy researchers face

C．an environmental pollution problem

D．an inexpensive energy source

2．Which of the following describes an advantage of using solar energy?

[　　]

A．There is little or no environmental pollution.

B．Solar energy can easily be stored.

C．Fossil fuels will become more plentiful(丰富的).

D．The oil－consuming nations will not have to import oil.

3．The cost of using the sun's rays for heating is ________.

[　　]

A．about the same as the cost of fossil fuels

B．several hundred dollars per year

C．negligible(可以忽略的) compared with other energy sources.

D．more than the lost of fossil fuels

Answer 1

答案：D;A;C