Question

19．Leaders of the World Health Organization say they are concerned about the air quality and health efiects on citizens during a recent outbreak of heavy pollution in Beijing．Still，they said they were unsure of the exact amount the air pollution takes on any person's body，casting doubts on local reports tying the area's dirty air to particular cases of illness．
   Speaking at a briefing（情况介绍会）on Tuesday，the WHO's Western Pacific regional director，Shin Young-Soo，cited（列举）reports about poor air quality causing lung cancer in recent weeks．
"The WHO is skeptical of the information，"she said．"We're cautious of whether the illness is related to air po11ution．We know it has an impact on health，but we don't know how much．"
    The officials didn't cite particular reports．The comments follow a number of articles since late last year connecting some cases of diseases like lung cancer with pollution，．including one in November regarding an 8-year-old girl．
   The health impact of Beijing's gray skies has been on the minds of many over the past week．Local authorities on Tuesday preserved an orange alert（警报）一the city's second highest pollution-warning level-and again warned people to stay indoors．Experts widely agree that small particulates（颗粒） known as PM2.5 carry significant short-and long-term health risks，particularly with children．Other studies find a certain link between pollution and shorter life spans．
Chinese state media have noted a rise in cancer levels in Beijing，without specifying（具体说明）whether the new cases are the main result of pollution，smoking，other sources or some combination．
Bernhard Schwartlander，the organization's China chief，said he is concerned and has been in contact with national authorities．"There is no easy solution，"Dr．Schwartlainder said，adding that solving the problem requires managing industry and the economy．WHO leaders advised citizens．to stay indoors and limit exposure to the harmful particulates．When asked if wearing a face mask has any proven efficacy in preventing health effects of air pollution，Dr．Schwartlainder said，"Whatever you do，it's better than nothing．"

68．We can learn from the passage thatA．
A．in case of an orange alert，we had better not go outside
B．the case of the girl with lung cancer was little'linked to air pollution
C．cancer levels in Beijing are rising due to heavy air pollution
D．it is widely agreed that pollution shortens life spans very slightly
69．According to Dr．Schwartlander，the ways to solve the problem includeC．
A．contacting the national authorities     
B．being exposed less to harmful particulates
C．managing the enterprise and economy  
D．preventing health effects of pollution
70．What would be the best title of this passage？D
A．The dangers of heavy pollution
B．The impacts of pollution on health
C．The importance of protecting the environment
D．The uncertainty of relationship between pollution and health．

Answer 1

分析 本文属于说明文阅读，作者通过这篇文章主要向我们描述了世界卫生组织尚不确定雾霾对人体健康的具体危害，我们知道雾霾对人们的身体健康有影响，但我们不确定有多大的影响，因此我们只能尽量减少接触污染严重的环境，不管采取哪种措施，都比什么都不做要好．

解答 68．A．细节理解题．根据文章第五段"Local authorities on Tuesday preserved an orange alert（警报）一the city's second highest pollution-warning level-and again warned people to stay indoors"，当地有关部门周二维持橙色预警（污染警报级别第二级），并且再度警告人们留在室内；故选A．
69．C．细节理解题．根据文章最后一段．"There is no easy solution，"Dr．Schwartlainder said，adding that solving the problem requires managing industry and the economy，可知解决方案为管理行业和经济；故选C．
70．D．推理判断题．通读全文，可知文章主要再讲无法判断环境污染和健康的关系，因此最佳标题为污染与健康关系的不确定性；故选D．

点评 考察学生的细节理解和推理判断能力，做细节理解题时一定要找到文章中的原句，和题干进行比较，再做出正确的选择．在做推理判断题不要以个人的主观想象代替文章的事实，要根据文章事实进行合乎逻辑的推理判断．