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. Graphenes 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.
答案与题解：
1. C 第一段最后一句提供了答案：工程师将眼光投向石墨烯，一种由碳原子组成的超薄材料，
这种材料能够改变电子产品的未来。
2.C 第二段倒数第二句告诉我们，25，000 层石墨烯才能堆砌成一张普通白纸的厚度，这是为了说明石墨烯是多么的薄，而不是说它可以用来造纸，所以A不是正确答案。第三段最后一句说明石墨烯就在我们周围，因此C是答案。B和D的表述内容都与该两段内容不符合。
3.D apply... over：将……涂(敷)在……上。
4.A 最后两段告诉我们，用一张纸，一支铅笔和一片胶带就能找到石墨烯；无数层石墨烯构成石墨，当铅笔留在纸上的石墨被胶带剥离到最薄一层时，我们就得到了石墨烯。因此只有A不是最后两段的表述内容。
5. C 第一段提供了答案。随着电子产品越来越小，需要更小的电子组件(components) ，而石墨烯作为最薄的材料可以帮助工程师实现这一目标。这就是石墨烯力量所在。