12.As space science develops,man has learned more and more about space.Space is not only amazing but also dangerous.While working in space,spacemen are facing danger as well as success.
Scientists have found out that radiation(辐射)is the greatest danger to spacemen in space.When spacemen are working in space,they are in danger of radiation from the sun and other stars,which is bad for their health.The damage(危害)done by radiation won't be discovered until their children or ever grandchildren are born.Some special medicine may work a little,but no really helpful medicine has been found so far.
Space junk(垃圾) is also thought a great danger go spacemen.It's reported that there are 9,000man-made things flying in space.About 30% of these are satellites(卫星),10% are spaceships,and the rest are space junk.An explosion(爆炸) in 1996made a cloud of 300,000 fragments,each at least 4mm in size,and even a small piece of these knocked against a spaceship window and did some damage.Scientists are watching and reporting any possible danger all the time.They are working on helpful ways to do with space junk.
Although space is really dangerous,it interests everyone on the earth.In the near future,it may become usual for people to spend a few days in a space hotel.We may even choose to leave the earth and live in space in a few years.So we should care for space and do something to help improve the space environment.
根据短文内容选择最佳答案
61.Space junk and radiation in space are dangerous toA.
A.spacemen working in space
B.people only on the earth
C.all the people except children
D.all the animals
62.The underlined word"fragments"means"A".
A.碎片
B.泡沫
C.烟雾
D.粒子
63.C shows the man-made things in space in the correct way.
A.Teachers
B.Spacemen
C.Scientists
D.Fragments
64.Which of the following about the passage is TRUE?A
A.The passage tells us that radiation in space comes from the sun and other stars.
B.Every one of us can make a trip to space now.
C.Scientists have found out ways to solve any problem in space.
D.We can do nothing to help improve the space environment.
65.The best title of the passage is.B
A.SPACE RADIATION
B.SPACE DANGER
C.SPACE JUNK
D.SPACEMEN.
分析 文章大意:这是一篇科普知识阅读,主要介绍太空中宇航员所面对的危险.第一种是辐射,辐射是对太空中的宇航员最大的危害,这种危害会在后代身上体现.直到今天还没有研究出有效的药物来防止或治疗辐射.第二种是太空垃圾.目前太空中大约有9000件人造物体,其中30%为卫星,10%是宇宙飞船,剩馀的则都为宇宙垃圾.只要一小片垃圾就可以打破宇宙飞船的窗户,危害宇航员的生命,因此用要为改善宇宙环境而努力.
解答 61.答案:A.细节理解题.根据第二段第一句Scientists have found out that radiation(辐射)is the greatest danger to spacemen in space科学家们已经发现辐射是空间里最大的危险.第三段第一句Space junk(垃圾) is also thought a great danger go spacemen.太空垃圾也被认为有很大的危险对于去太空的人.可知,太空垃圾和辐射对在太空工作的宇航员是危险的.选A.
62.答案:A.词意猜测题.根据下句each at least 4mm in size每个至少4毫米大小.可知,应该是碎片.选A.
63.答案:C.细节理解题.根据第三段Scientists are watching and reporting any possible danger all the time.They are working on helpful ways to do with space junk.科学家们一直在观察和报告任何可能的危险,他们正在研究如何处理太空垃圾.可知,科学家以正确的方式在太空中展示人造的东西.选C.
64.答案:A.推理判断题.根据第二段第一行When spacemen are working in space,they are in danger of radiation from the sun and other stars,which is bad for their health.当宇航员是在太空中工作,他们在来自太阳和其他恒星的危险的辐射中,这对他们的健康是不好的.可知,A选项"这篇文章告诉我们太空中的辐射来自太阳和其他恒星."是正确的.选A.
65.答案:B.标题猜测题.根据根据第二段第一句Scientists have found out that radiation(辐射)is the greatest danger to spacemen in space科学家们已经发现辐射是空间里最大的危险.第三段第一句Space junk(垃圾) is also thought a great danger go spacemen.太空垃圾也被认为有很大的危险对于去太空的人.可知,短文主要讲太空中的危险.选B.
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.