分析 本文主要向我们介绍了核能对我们健康的危害.核能对人类的健康、安全乃至生命所造成的危害可用一个单词加以概括:辐射.核辐射无法被人类的感官所感知,它会伤害一个人而受害者不知道.如果一个人遭受了核辐射,他可能在若干年后死于癌症,又或者是生了一个天生弱的孩子,更严重的是可能会立即死亡.
解答 51.C 细节理解题.由第一段Nuclear power's danger to health,safety,and even life itself can be summed up in one word:radiation.可知核电最危险的因素是辐射.故选C.
52.B 细节理解题.由第二段可知核辐射不同于普通的无线电波,它无法被人类的感官所感知,它对人类和其他生物是有害的.故选B.
53.D 推理判断题.由第三段At very high levels,radiation can kill an animal or human being immediately by killing masses of cells in vital organs.可知辐射通过杀灭重要器官的大量细胞来杀害动物或人类.故选D.
54.A 细节理解题.由第四段This is another reason for some of the mystery about nuclear radiation.Serious damage can be done without the victim being aware at the time that damage has occurred.A person can be irradiated(辐射 )and feel fine.可知核辐射无法被人类的感官所感知,它会伤害一个人而受害者不知道.故选A.
55.D 细节理解题.由第四段then die for cancer five,ten,or twenty years later as a result.Or a child can be born weak as a result of radiation absorbed by its grandparents.可知如果一个人遭受了核辐射,他可能在若干年后死于癌症,又或者是生了一个天生弱的孩子;由第三段At very high levels,radiation can kill an animal or human being immediately by killing masses of cells in vital organs.可知一个人遭受了核辐射可能立即死亡.由此可知A、B、C项叙述都是对的.故选D.
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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(71)Introduction | ●Ebola,a dangerous virus,was named after the Ebola River,on whose banks it was first discovered. ●Despite the (72)announced/reported success in the virus treatment,people across the world continue to die from the virus. |
Symptoms | ●In the first turn,the symptoms are (73)similar to those that people experience when they are (74)suffering from a severe cold or flu. ●If not (75)taken seriously,the virus will keep progressing,and things will change for the worse. |
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