6. wonderstuff:神奇物。该词为合成词,由wonder和stuff两个词构成。
7. apply a small piece of adhesive tape over :将一小片胶带敷在上。
1 .What would change the future of electronics according to engineers?
B Creative ways.
D Both A and B.
A It can be used to make paper.
C It is easy to find graphene.
3. Which of the following can be used to replace the word applyin paragraph 4?
B polish.
D put.
A Graphene is made of graphite,one of the softest materials in the world.
C When we get to the thinnest possible layer of graphite,we find graphene.
5. Graphenes superstrength lies in the fact that
B It is made of the most abundant elements in the world.
D It helps engineers to produce more sensitive electronic products.
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,
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。
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