Question

   People usually check whether their keys,wallets and phones are with them before going out. But many people in Chiga,now have one more important thing to take,a face mask (面罩) . They hope that it can protect them from the pointed air. 

   Since the end of last year,many cities in China have had a lot of haze (零霾) days. During these days,people can only see things that are very near to them. In Beijing,few days in January were free of smog.

    According to the Chinese Academy of Sciences,driving cars and burning coal are two major factors for PM 2.5,which is the main problem of air pollution. Poor air is harmful to people's health,especially for children and the elderly. Air problems and environmental protection have got the attention of the whole nation.

Our government is taking action to fight against pollution and offer people a healthy living environment. It calls on people to make good use of energy and cut down on energy use.

49. makes many people in China wear face masks when they go out.

   A. Water pollution   B. White pollution

   C. Air pollution   D. Noise pollution

50. Paragraph 2   tells us that on hazy days .

   A. people can't see anything

   B. there is no smog

   C. people needn’t have a mask

   D. people can't see things clearly that are far from them 

51. The Chinese Academy of Sciences said that were two important factors for PM2.5.

   A. driving cars and burning coal

   B. walking and cycling

   C. driving buses and burning wood

   D. using water and building houses

Answer 1

49. C 50. D 51. A 

[閱讀C篇短文大意]中國的許多城市正在遭受嚴(yán)重的霧 霾天氣，開車和燃燒煤炭是造成空氣污染的主要因素。政府正在 采取措施控制污染，給人們提供健康的生活環(huán)境。

49. C 由第一段的最后一句"They hope that it can protect them from the polluted air"可知，答案為C.

50. D 由第二段中的” During these days,people can only see things that are very near to them”可知，在這些天，人們不能夠看清 楚遠(yuǎn)處的東西。

51. A 由第三段中的"driving cars and burning coal are two najor factors for PM 2. 5"可知答案為A.