分析 一天一个苹果,疾病远离我,可最近一项研究表明,一天一个苹果,有助于抗老化.
此报告专注于研究果蝇,因为其一部分基因和人类的一样.这些果蝇有的是正常喂养,有的是正常喂养的基础上加入了苹果浓缩物.
最后证明加了苹果浓缩物的苹果生命持久的要长5天,还发现果蝇活动更灵活.
根据结果可知苹果浓缩物里的抗氧化剂能清除引起疾病和衰老的化学物质.
另一个研究发现那些经常吃苹果的女人患心脏病和中风的可能性要低20%.苹果的遗传密码已被发现,专家正在种植含有抗氧化剂的苹果.研究苹果DNA的专家来自5个国家的100个科学家,他们的研究还表明,在6500万年前,当恐龙开始死亡,植物,最终成为今天的苹果树,经历了一个伟大的遗传变化.它的许多基因的数量增加了一倍,额外的基因让苹果适应恶劣条件和不同的发展经历.
解答 30.答案:C.细节理解题,根据第二段The research chose fruit flies(果蝇),as they share many genes(基因)with humans.可以看出此报告专注于研究果蝇,因为其一部分基因和人类的一样,故选C.
31.答案:B.细节理解题.根据第三段"According to the result,the researchers believed that the antioxidants(抗氧化剂) in the apple extract helped clean up dangerous chemicals(化学物质) that cause illnesses,as well as aging."可知苹果浓缩物里的抗氧化剂能清除引起疾病和衰老的化学物质.故选B.
32.答案:C.推理判断题,根据最后"when dinosaurs began to die off the plant,which would finally become today's apple tree,experienced a great genetic change."在6500万年前,当恐龙开始死亡,植物,最终成为今天的苹果树,经历了一个伟大的遗传变化.The extra genes allowed the apple to get used to worse conditions 额外的基因让苹果适应恶劣条件,故选C.
33.答案:A.推理判断题.根据第一段:An apple a day keeps the doctor away.A recent research carried out by the Chinese University of Hong Kong may change the saying:An apple a day may keep aging away.吃苹果会给我们带来更多的优点比我们之前认为的更多,可以抗衰老,故答案是A.
点评 阅读题型,要注重句子与句子之间、段落与段落之间逻辑关系以及对篇章的整体理解.根据所给问题选择正确选项完成试题.
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