13．The air quality has worsened in the Chinese capital since Wednesday，causing renewed discontent among residents．
Without rainfall and wind to decrease pollutants，particulate matter（顆粒物質(zhì)） has been accumulating in the air．Most monitoring stations measured PM 10 （particulate matter smaller than 10 micrograms） at higher than 300 micrograms per cubic meter．In southwestern Beijing's Fangshan District，the Liangxiang station recorded 516 micrograms of PM 10 per cubic meter，the highest reading of the day，according to the Beijing Municipal Environmental Monitoring Center．More than 150 micrograms is considered harmful to health．
Beijing has been covered by heavy smog off and on this winter，and the ongoing air concerns are wearing on residents，particularly as they prepare to celebrate the Spring Festival holiday next week．"I almost got choked by the smog when I stepped out of the office building on Wednesday，"said Yang Yanli，24，an accountant．"The smell is so terrible，as though I'm inhaling lots of coal，that it has spoiled my holiday mood．"
Unlike the smog that hit mostly the southern part of the capital on January 1，the smog in recent days has covered the entire city，according to the Beijing Environmental Protection Bureau．Worse yet，it will continue until Saturday，when the wind will pick up and blow it away，the bureau predicted．
The Chinese Center for Disease Control and Prevention suggests people stay at home to protect themselves from breathing and heart problems caused by heavy smog and people with breathing problems put off traveling if the smog stays．But many people said they had to brave the bad air to travel，especially migrants who are eager to reunite with their families during the Spring Festival．

25．According to the passage，most monitoring stations in Beijing measured PM 10 atAthis week．
A．higher than 300 micrograms per cubic meter
B．smaller than 10 micrograms per cubic meter
C．516 micrograms of PM 10 per cubic meter
D．more than 150 micrograms per cubic meter
26．According to the passage，the highest reading about pollution is taken inD．
A．The Chinese Center for Disease Control and Prevention
B．Beijing Municipal Environmental Monitoring Center
C．Beijing Environmental Protection Bureau
D．Southwestern Beijing's Fangshan District
27．The underlined word"inhaling"in the third paragraph probably meansB．
A．coughing                            
B．breathing in
C．choking                             
D．sneezing
28．The smog weather is supposed to last untilC．
A．spring                              
B．the Spring Festival
C．Saturday                            
D．Wednesday．

分析 本文屬于說明文閱讀，作者通過這篇文章主要向我們描述了自上星期三以來，中國首都的空氣質(zhì)量惡化，預(yù)測將一直持續(xù)到星期六，導(dǎo)致居民的不滿情緒再度發(fā)生，中國疾病預(yù)防控制中心建議人們留在家里保護(hù)自己，盡量避免外出和推遲旅行．

解答 25．A．細(xì)節(jié)理解題．根據(jù)文章第二段"Most monitoring stations measured PM 10 （particulate matter smaller than 10 micrograms） at higher than 300 micrograms per cubic meter"，可知大部分監(jiān)測站測量PM 10（可吸入顆粒物小于10微克）高于300微克每立方米，故選A．
26．D．細(xì)節(jié)理解題．根據(jù)文章第二段"In southwestern Beijing's Fangshan District，the Liangxiang station recorded 516 micrograms of PM 10 per cubic meter，the highest reading of the day"可知污染的最高的讀數(shù)是在北京西南部的房山區(qū)；故選D．
27．B．推理判斷題．根據(jù)文章第三段"．"The smell is so terrible，as though I'm inhaling lots of coal"，它聞起來是如此的可怕，可推測就像吸入了大量的煤一樣；故選B．
28．C．細(xì)節(jié)理解題．根據(jù)文章第四段"Worse yet，it will continue until Saturday，when the wind will pick up and blow it away，the bureau predicted"，糟糕的是，該局預(yù)測它將持續(xù)到星期六，當(dāng)風(fēng)將將它吹走；故選C．

點評 考察學(xué)生的細(xì)節(jié)理解和推理判斷能力，做細(xì)節(jié)理解題時一定要找到文章中的原句，和題干進(jìn)行比較，再做出正確的選擇．在做推理判斷題不要以個人的主觀想象代替文章的事實，要根據(jù)文章事實進(jìn)行合乎邏輯的推理判斷．

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