6月大学英语六级阅读理解考试题解析
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6月大学英语六级阅读理解考试题解析
2017年6月大学英语六级阅读理解考试题解析
古今来许多世家,无非积德。天地间第一人品,还是读书。以下是店铺为大家搜索整理的2017年6月大学英语六级阅读理解考试题解析,希望能给大家带来帮助!
Plastics are materials which are softened by heat and set into
lasting form when shaped in a mold. Some are natural; some are
semi-synthetic(半合成的) , the result of chemical action on natural
substance; some are synthetic, built up from the constituents of
oil or coal. All are based on the chemistry of carbon, with its
capacity for forming chains. The molecules that compose them
(monomers) link together in the setting or curing(硫化) process
to form chains (polymers) , which give plastics their flexible
strength. Some plastics retain their ability to be softened and
reshaped; like wax, they are thermoplastic. Others set
permanently in the shapes they are given by heat and pressure;
like eggs, they are thermosetting.
From industrial beginnings in the nineteenth century, plastics
have struggled through a hundred and twenty years of glory,
failure, disrepute and suspicion on the slow road to public
acceptance. Now, at last, one can positively say that plastics are
appreciated and enjoyed for what they are; that they make
modern life richer, more comfortable and convenient, and also
more fun. Plastics are warm materials, sympathetic to the human
touch, and their transformation into things that come into
contact with human beings is entirely appropriate.
The fact that there are plastic antiques comes as a shock to
most people. How can a material that seems so essentially
twentieth century, and one that is so much associated with cheap, disposable products, has a history at all? It is a young technology,
and a great part of the fun of collecting plastics is that beautiful
pieces of historical interest can still be found very cheaply.
21. The word "sympathetic" in Paragraph 2 most probably
means_______.
A. harmful B. agreeable
C. pitiful D. sorry
22. It can be concluded from this passage that_______.
A. plastics are synthetic materials
B. plastics won public acceptance 120 years ago
C. plastics are very harmful in modern life
D. plastics are cheap as antiques
23. Which of the following is essential to create any type of
plastics?
A. Carbon. B. Eggs.
C. Oil. D. Coal.
24. Plastics that harden into permanent shapes are
called_______.
A. chained B. thermoplastic
C. synthetic D. thermosetting
25. Which of the following is the best title for the passage?
A. The Importance of Plastics in the Nineteenth Century.
B. Why People Are Suspicious of Plastics.
C. The Development of Plastics as a Modern Material.
D. How Plastics Are Manufactured.
参考答案
21. B 22. D 23. A 24. D 25. C
【2017年6月大学英语六级阅读理解考试题解析】