1.Paragraph 1 of the passage is mainly about shrilks
________.
A.remarkable design
B.interesting name
C.major features
D.basic elements
答案 C [推理判断题。文章第一段介绍了哈佛大学研究者最新发明的一种耐用、成本低、可C项正确。]
2.What has become a concern about plastic?
A.Using it properly.
B.Producing it cheaply.
C.Developing its properties quickly.
D.Evaluating its contributions fairly.
答案 A [推理判断题。根据第二段第三句“Decades later,however,plastics very durability is raising questions about how appropriate it is for one-time products...”可推知,如何合理利用这种材料成了焦点问题。故A项正确。]
3.According to the inventors,shrilk has great potential partly because________.
A.it can help plastic degrade
B.it can be found in living things
C.its mass production has been realized
D.its raw materials are abundant in nature
答案 D [细节理解题。根据第四段第一、二句“Shrilk has great potential,the inventors said.Materials from which it is made are plentiful in nature,found in everything ranging from shrimp shells,insect bodies to living plants.”可知,制作这种材料的原材料在大自然中是非常充足的。故D项正确。]
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