Question

閱讀理解

閱讀下面短文，從每題所給的四個選項(xiàng)中，選出最佳選項(xiàng)。

　　The idea of light pollution has developed with the increase of lights in cities. In many areas, this light makes it difficult or impossible to observe stars and planets in the night sky.

　　There are a number of reasons why light pollution is important. One has become clear at the Mount Wilson Observatory(天文臺) near Los Angeles, California. Today, light from Los Angeles makes the night sky above Mount Wilson very bright. It is no longer an important research center because of light pollution.

　　Light pollution threatens(威脅) to reduce the scientific value of research telescopes in other important ob servatories. They include Lick Observatory near San Jose, California and Yerkes Observatory near Chicago, Illinois.

　　Light pollution is the result of wasted energy. Bright light that shines into the sky is not being used to provide light where it is needed on Earth. Poorly designed lighting causes a great deal of light pollution. Lights that are brighter than necessary also cause light pollution.

　　Recently, two Italian astronomers(天文學(xué)家) and an American environmental scientist created a world map of the night sky. The map shows that North America, Western Europe and Japan have the greatest amount of light pollution.

　　Most people in America are surprised to find out that they are able to see our own galaxy(星系), the Milky Way(銀河系), with their own eyes. But about three-fourth of Americans cannot see the Millky Way because of man-made light.

　　Objects in the night sky are resources that provide everyone with wonder. But light pollution threatens to prevent those wonderful sights from being seen.

1．Light pollution usually occurs ________.

[　　]

A．in cities

B．in the country

C．in wild areas

D．in developing countries

2．People can not see the stars in the sky because of ________.

[　　]

A．a(chǎn)ir pollution

B．water pollution

C．light pollution

D．gas pollution

3．The victim(受害者) affected by the light pollution is ________.

[　　]

A．children

B．grown-ups

C．students

D．observatories

4．There is less light pollution in ________.

[　　]

A．the United States

B．Canada

C．France

D．Egypt

Answer 1

答案：A;C;D;D
解析：

1．A　　從第一段可以看出答案。 　　2．C　　從第一段，特別是：It is no longer an important research center because of light pollution.可知答案。 　　3．D　　從整個文章及第三段所列舉的例子可看出“光污染的最大受害者為天文臺”。 　　4．D　　從倒數(shù)第三段科學(xué)家繪制的夜空圖表明北美、西歐和日本的光污染最嚴(yán)重，由此可知在美國、加拿大、法國和埃及這四個國家中，應(yīng)是埃及光污染最輕。