题目
Many people, Including health professionals, hav assumed that e-cigarettes are-|||-safer than tradibonal egarettes,because B-cosar use heated liquid vapor(21)-|||-rather than burning tobacco leaves in a process that is likely to cause cancer.But-|||-safer" doesn`t mean `nsk-tree Atroubling incr of acute lung disease among e--|||-claarette users across 25 states makes us realize that there are still a lot of-|||-unknown health impheation of smoking e-cigattes.-|||-Last week, the Centers for Disease Control and Prevention (CDC) took the unusual-|||-step of waming the public agalnst using any electrontc cigarette devices until the-|||-agency concludes an investigation into the mystenous outbreak of lung disease. The-|||-CDC started a muln-state investgation i mid-August after receiving more than 150-|||-reports of senous respiratory distress (呼吸窘迫)among e-cigarette users,many of-|||-them teenagers and young adults. Within a couple of weeks,dozens more cases-|||-were reported, including the death of one e-cigarette user in Illinois.-|||-Ultimately, It turns out that the outbreak of lung disease is caused by the illegal use of-|||-drugs in e-cigarette devices But even so,such a finding would not mean that users-|||-of commercial nicotine (尼古丁)e-cigarettes can breathe easter. There are some-|||-pretty unpleasant things floating in that liquid nicotine that may be harmful to our-|||-health.-|||-For longtime smokers,the danger of lung cancer may well outweigh the dangers of-|||-smoking e-ogarettes.But there s always the risk of breathing chemicals, and if-|||-there`s any good to come out of this lung disease outbreak, pethaps it will be to bnng-|||-that lesson home to teenagers and young adults considenng taking up the e-cigarette-|||-habit-|||-14.Why do most people assume e-ongarettes safer than-|||-traditional ones?-|||-OA.Because traditional eigarettes us cheap-|||-materials.-|||-○B. Because e-cigarettes use heated liquid vapor.-|||-C.Because tradinonal cigarettes con more-|||-chemicals.-|||-○D. Because e-cigarettes use processed tobacco-|||-leaves.-|||-15.What was the unusual step that CDC took last week?-|||-OA.Startng an investigation into the outbreak of lung-|||-disease.-|||-B.Concluding an investigation among the 150 e--|||-cigarette users.-|||-C.Reporting the research results of serious-|||-respiratory distress.-|||-O Waming the public against using any e-clgarette-|||-devices.-|||-16.What caused the outbreak of lung disease among e--|||-cigarette users?-|||-OA.The commercial liquid nicotin-|||-B.The unpleasant things floalin In liquid chemicals.-|||-C.The frequent reuse of the same device.-|||-D.The illegal drugs in e-cagarette devices.-|||-17.Who are more likely to have the danger of lung cancer?-|||-OA.Adults using e-cigarettes.-|||-B.People with serious respiratory distress,
题目解答
答案
解析
步骤 1：理解问题背景
文章讨论了电子烟和传统香烟的健康风险。电子烟被认为比传统香烟更安全，因为它们使用加热的液体蒸汽而不是燃烧烟草。然而，电子烟的使用也存在健康风险，包括急性肺病的增加。
步骤 2：分析问题14
问题14询问为什么大多数人认为电子烟比传统香烟更安全。根据文章第一段，电子烟使用加热的液体蒸汽，而不是燃烧烟草，这被认为是更安全的。
步骤 3：分析问题15
问题15询问CDC上周采取的不寻常步骤。根据文章第二段，CDC警告公众不要使用任何电子烟设备，直到他们完成对肺病爆发的调查。
步骤 4：分析问题16
问题16询问电子烟用户中肺病爆发的原因。根据文章第三段，肺病爆发的原因是在电子烟设备中非法使用毒品。
步骤 5：分析问题17
问题17询问谁更有可能有患肺癌的危险。根据文章最后一段，长期吸烟者患肺癌的危险可能超过使用电子烟的危险。然而，问题17的选项不完整，无法作答。
文章讨论了电子烟和传统香烟的健康风险。电子烟被认为比传统香烟更安全，因为它们使用加热的液体蒸汽而不是燃烧烟草。然而，电子烟的使用也存在健康风险，包括急性肺病的增加。
步骤 2：分析问题14
问题14询问为什么大多数人认为电子烟比传统香烟更安全。根据文章第一段，电子烟使用加热的液体蒸汽，而不是燃烧烟草，这被认为是更安全的。
步骤 3：分析问题15
问题15询问CDC上周采取的不寻常步骤。根据文章第二段，CDC警告公众不要使用任何电子烟设备，直到他们完成对肺病爆发的调查。
步骤 4：分析问题16
问题16询问电子烟用户中肺病爆发的原因。根据文章第三段，肺病爆发的原因是在电子烟设备中非法使用毒品。
步骤 5：分析问题17
问题17询问谁更有可能有患肺癌的危险。根据文章最后一段，长期吸烟者患肺癌的危险可能超过使用电子烟的危险。然而，问题17的选项不完整，无法作答。