来”。阅读专练参考答案及解析参考答案1-4 DACB解析主题语境:人与自我一一生活本文是说明文。研究表明,香薰蜡烛在燃烧时一般不会对我们的健康造成危害。l.D。理解具体信息。根据第一段中的In a recent study,researchers burned scented candles inseveral rooms ranging from a small bathroom measuring 6 by 6 by 9 feet to a living roommeasuring 15 by 15 by 9 feet and then used special instruments to determine what wasreleased into the air可知,研究人员在香薰蜡烛燃烧过后测量了不同大小的房间里的空气质量。2.A。理解具体信息.根据第二段中的health authorities have claimed that the authors'findingsare solid可知,这项研究的结论已经得到官方认可。3.C。推断。根据第三段中Dalton所说的When candles burn,they release chemicals inrelatively insignificant concentrations和第四段中Sadekar所说的Exposure to chemicals releasedby scented candles is so low that they pose no significant risk to human health可知,Dalton和Sadekar都认为常规使用香薰蜡烛是很安全的。注:第三段中的concentrations意为“浓度,含量”;on the order of意为“大约,差不多”,为美式英语用法,英式为in/of the order of。.4.B。理解观点、态度。根据最后一段中的According to Dr..Dalton,humans can detect apleasant smell at very low concentrations和Dalton所说的We've been told that we're at the lowend of the animal kingdom in terms of being able to detect various smells.That's just not true,Dalton认为人类的嗅觉是非常灵敏的。