2012年职称英语模拟套题六(2)
第2部分:阅读判断(第16~22题,每题1分,共7分)
阅读下面这篇短文,短文后列出了7个句子,请根据短文的内容对每个句子做出判断。如果该句提供的是正确信息,请在答题卡上把A涂黑;如果该句提供的是错误信息,请在答题卡上把B涂黑;如果该句的信息文章中没有提及,请在答题卡上把C涂黑。
Batteries Built by Viruses
What do chicken pox,the common cold, the flu,and AIDS have in common? They’re all disease caused by viruses,tiny microorganisms that can pass from person to person.It's no wonder that when most people think about viruses, finding ways t0 steer clear of viruses is what's on people's minds.
Not everyone runs from the tiny disease carders, though.In Cambridge, Massachusetts, scientists have discovered that some viruses can be helpful in an unusual way.They are putting viruses to work, teaching them to build some of the world's smallest rechargeable batteries.
Viruses and batteries may seem like an unusual pair,but they're not so strange for engineer Angela Belcher,who first came up with the idea.At the Massachusetts Institute of Technology (MIT) in Cambridge, she and her collaborators bring together different areas of science in new ways.In the case of the virus-built batteries, the scientists combine what they know about biology, technology and production techniques.
Belcher's team includes Paula Hammond,who helps put together the tiny batteries, and Yet-Ming Chiang, an expert on how to store energy in the form of a battery.“We’re working on things we traditionally don’t associate with nature.” says Hammond.
Many batteries are already pretty small.You can hold A.C and D batteries in your hand.The coin—like batteries that power watches are often smaller than a penny.However。every year,new electronic devices like personal music players or cell phones get smaller than the year before.As these devices shrink, ordinary batteries won't be small enough to fit inside.
The ideal battery will store a lot of energy in a small package.Right now,Belcher's model battery,a metallic disk completely built by viruses,looks like a regular watch battery.But inside,its components are very small—so tiny you can only see them with a powerful microscope.
How small are these battery parts? To get some idea of the size,pluck one hair from your head.Place your hair on a piece of white paper and try to see how wide your hair is—pretty thin,right? Although the width of each person's hair is a bit different,you could probably fit about l o of these virus—built battery parts,side to side,across one hair.These microbatteries may change the way we look at viruses7.
答案解析:
1.C 短文第一段的大致意思是,许多疾病都由病毒引起,诸如水痘、感冒和艾滋病,所以人们想尽办法躲避病毒。这是C所表达的意思。A不是正确选择,因为文章并没有说人们想方设法去杀死病毒。B的后半句的内容(病毒肉眼看不见)和D的内容(吃药治疗病毒引起的疾病)文中没有提到。
2.C 短文的第二段明确提供了答案。
3.D 根据上下文,shrink在此的意思是“收缩”,即“缩小”。所以,它的反义词是expand(增大,扩张)。C不是正确选择,因为extend的意思是become longer,即“延伸”或“加长”。A的意思是“加宽”,也不是答案。B的意思是“伸展,展开”,在一定的上下文里也可以做shrink的反义词,但在第五段这个语境里,B不是最佳选择。
4.D 第六段第二句中提到的metallic disk是指“金属圆盘”,它是微型电池的外形,其内部是由病毒构成的电池部件。微型电池不是由金属组成的,所以A不是答案。本段提到,这种电池looks like a regular watch battery,与手表里电池外形相似,但并不等同手表电池,所以B也不是正确选择。文章只是说电池的部件(但并没有说整个电池)小到只能用显微镜才能看到,所以C也不是正确的选择。D才是第六段所要表达的主要内容,因此是答案。
5.A 短文最后一段的第四句(“you could probably fit about lo of these virus-built battery parts,side to side,across one hair“)提供了本题的答案。
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