分析 文章介绍了宇航员们在太空当中也会面临着许多危险,其中主要是辐射和太空垃圾的威胁;辐射对宇航员们的伤害可能会在他们的第二代甚至第三代身上表现出来;太空垃圾中有一些是人造垃圾.太空垃圾对人们探测宇宙有很大的.
解答 66-70 CACAB
66题答案:C 推理判断题.根据第三段About 30% of these are man-made satellites(卫星),10% are spaceships,and the rest are space junk.可知人造的东西在太空中成为垃圾的比例为1-30%-10%=60%,故答案是C.
67题答案:A 考查细节理解题,根据文中的第一段While working in space,spacemen are facing danger as well as success可知 太空垃圾对那些宇航员来说很危险,故答案是A.
68题答案:C 考查词汇题,根据文中的前面句子And even a small piece of these knocked against a spaceship window 甚至有一小部分撞击宇宙飞船的窗户.可知后面是一些损坏,故答案是C.
69题答案:A 考查细节理解题,根据文中的第四段In the near future,it may become usual for people to spend a few days in a space hotel可知未来我们有可能在太空小住一段时间,故答案是A.
70题答案:B 考查主旨题,根据文中的第二段Scientists have found out that the radiation (辐射) is the greatest danger to spacemen in space科学家们已经发现辐射是空间最大的危险,及第三段Space junk is also thought to be a great danger to spacemen太空垃圾对于宇航员来说也是一个很大的危险,可知本文主要描述的是太空危险,故答案是B.
点评 本文是一篇日常生活类阅读,题目涉及多道细节理解题,做题时结合原文和题目有针对 性找出相关语句进行仔细分析,结合选项选出正确答案.推理判断也是要在抓住关键句子的基础上合理的分析才能得出正确的答案.
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