分析 本文是一篇科教类阅读,文章主要介绍了痢疾对人的健康的危害,分析了人们患疟疾的原因,以及疟疾广泛传染的原因和痢疾的治疗方法.但由于新的治疗疟疾的药物缺乏并且很贵,所以大多数人不能用新的治疗方法治疗.
解答 67-70 ACDB
67.A推断细节题.根据第一段中的"It is not unusual for a family earning less than two hundred dollars a year to spend a quarter of its income on malaria treatment,and what they often get no longer works."可知许多人不进行治疗的原因是他们太穷,没有钱治疗疟疾.故选A.
68.C细节理解题.根据第二段中的"Malaria parasites live by eating the red blood cells they infect."可知人们患疟疾的原因是他们的红血球受到了感染.故选C.
69.D细节判断题.根据第二段中的"Malaria has five thousand genes,and its ability to change rapidly to defend itself and resist new drugs has made it nearly impossible to control."可知疟疾基因有五千,它能迅速改变来保护自己,并且抵制新型病毒,它的这些能力已变得几乎不可能被控制.由此可知,疟疾广泛传染的原因是它有保护自己和抵抗新药的能力.故选D.
70.B细节推断题.根据最后一段中的"Successful alternatives that help prevent resistance are already available,but they have been in short supply and are very expensive."可知由于新的治疗疟疾的药物缺乏并且很贵,所以大多数人不能用新的治疗方法治疗.故选B.
点评 本文考察学生的理解推断能力以及细心程度,只要抓住文章的关键词,采用寻读的方法查找细节,就能找到正确答案.
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36.A.when | B.while | C.as | D.since |
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38.A.avoid | B.hide | C.notice | D.pick |
39.A.as if | B.even if | C.in case | D.if only |
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41.A.ever | B.never | C.even | D.still |
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44.A.though | B.until | C.after | D.if |
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