2012年職稱英語考試試題理工C閱讀理解第19篇

　　環(huán)球網(wǎng)校第一時間整理發(fā)布2012年職稱英語考試試題，2012年職稱英語考試試題理工C閱讀理解教材第19篇：$lesson$

　　第十九篇

　　Graphene's Superstrength1

　　Big technology comes in tiny packages. New cell phones and personal computers get smaller every year，which means these electronics require even smaller components on the inside. Engineers are looking for creative ways to build these components，and they've turned their eyes to graphene，a superthin2 material，made of carbon，that could change the future of electronics.

　　This year's Nobel Prize for Physics3 has been awarded to Andre Geim and Kostya Novoselov

　　from the University of Manchester4，UK. for the discovery of graphene. Graphene isn't just small, it's“the thinnest possible material in this world，” says Novoselov. He calls it a“wonder material. ”It's so thin that you would need to stack about 25,000 sheets just to make a pile as thick as a piece of ordinary white paper. If you were to hold a sheet of graphene in your fingers5，you'd have no idea because you wouldn't be able to see it.

　　Carbon is one of the most abundant elements in the universe. Every known kind of life

　　contains carbon. Graphene is a sheet of carbon，but only one atom thick. You don't have to look far to find grapheme ―it's all around you.

　　If you want this high-tech wonderstuff6，all you need is a pencil，paper and a little adhesive

　　tape. Use the pencil to shade a small area on the paper, and then apply a small piece of adhesive

　　tape over the area7. When you pull up the tape，you'll see that it pulls up a thin layer of some of

　　the shading from your pencil. That layer is called graphite，one of the softest minerals in the world.

　　Now stick the same piece of tape on another sheet of paper and pull the tape up ―there should be an even thinner layer，this time left on the paper. Now imagine that you do this over and over，until you get the thinnest possible layer of material on the paper. This layer would be only one atom thick，and you wouldn't be able to see it. Graphite is made of layers of graphene，so when you get to the thinnest possible layer，you've found graphene.

　　詞匯：

　　graphene/ 'græfi:n/ n.石墨烯

　　abundant/ə’bʌndənt / adj.豐富的，充裕的

　　atom/ 'ætəm/n.原子

　　adhesive/ əd'hi:siv/ n.膠粘劑; adj. 黏著的

　　stack/stæk/ v.使成堆，堆放

　　graphite / 'græfait / n.石墨

　　注釋：

　　1. superstrength：超強的力量。該詞是一個合成詞，由兩部分組成， super(超級的)和strength (力量)。

　　2. superthin：超薄。見注釋1。

　　3. Nobel Prize for Physics ：諾貝爾物理學(xué)獎

　　4. the University of Manchester：曼徹斯特大學(xué)。這是一所位于英國曼徹斯特市的公立研究型大學(xué)，創(chuàng)建于1851 年。

　　5. If you were to hold a sheet of graphene in your fingers：句子使用的是虛擬語氣，因為不可能將幾乎肉眼看不到的石墨烯放在指尖上。來源教育城外語網(wǎng)

　　6. wonderstuff：神奇物。該詞為合成詞，由wonder(神奇)和stuff(東西)兩個詞構(gòu)成。

　　wonderstuff 指的是第二段提到的wonder material。

　　7. apply a small piece of adhesive tape over… ：將一小片膠帶敷在……上。

　　練習(xí)：

　　1 .What would change the future of electronics according to engineers?

　　A Big technology.

　　B Creative ways.

　　C Graphene.

　　D Both A and B.

　　2. According to the second and third paragraphs，what is true of graphene?

　　A It can be used to make paper.

　　B It is possible to see it with our naked eye.

　　C It is easy to find graphene.

　　D It is possibly the thickest material in the world.

　　3. Which of the following can be used to replace the word “apply”in paragraph 4?

　　A request.

　　B polish.

　　C use.

　　D put.

　　4. Which of the following is NOT meant in the last two paragraphs?

　　A Graphene is made of graphite，one of the softest materials in the world.

　　B Graphite is made of layers of graphene，the thinnest material in the world.

　　C When we get to the thinnest possible layer of graphite，we find graphene.

　　D With a pencil，a sheet of paper and a piece of adhesive tape，we can find graphene.

　　5. Graphene's superstrength lies in the fact that

　　A It is the thinnest material in the world.

　　B It is made of the most abundant elements in the world.

　　C It can help to make electronic components smaller.

　　D It helps engineers to produce more sensitive electronic products.

　　答案與題解：

　　1. C 第一段最后一句提供了答案：工程師將眼光投向石墨烯，一種由碳原子組成的超薄材料，

　　這種材料能夠改變電子產(chǎn)品的未來。

　　2.C 第二段倒數(shù)第二句告訴我們，25,000 層石墨烯才能堆砌成一張普通白紙的厚度，這是為了說明石墨烯是多么的薄，而不是說它可以用來造紙，所以A不是正確答案。第三段最后一句說明石墨烯就在我們周圍，因此C是答案。B和D的表述內(nèi)容都與該兩段內(nèi)容不符合。

　　3.D apply... over：將……涂(敷)在……上。

　　4.A 最后兩段告訴我們，用一張紙，一支鉛筆和一片膠帶就能找到石墨烯;無數(shù)層石墨烯構(gòu)成石墨，當鉛筆留在紙上的石墨被膠帶剝離到最薄一層時，我們就得到了石墨烯。因此只有A不是最后兩段的表述內(nèi)容。

　　5. C 第一段提供了答案。隨著電子產(chǎn)品越來越小，需要更小的電子組件(components) ，而石墨烯作為最薄的材料可以幫助工程師實現(xiàn)這一目標。這就是石墨烯力量所在。

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