2017中考英语阅读理解-专题三、环境保护
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专题三、环境保护
（2017·山东莱芜）C
How do you deal with plastic bags from the supermarket? Throw them away or recycle them? How about eating them?
The bags are no harmful to the environment. Humans and animals can safely eat them. Indian company EnviGreen has made a bag with natural
materials. It looks and feels just like plastic, but can broken down（分解）
easily.
Ashwath Hedge who set up the EnviGreen company spent four years doing experiments（实验）with 12 natural materials. They include potato, corn,vegetable oil and banana. He made the material into liquid（液体）and used the liquid to make the bag.
Although the EnviGreen bag is more expensive than a common plastic bag, it has many advantages. According to the Wall Street Journal, it takes 1,000 years for common plastic bags to break down. But an EnviGreen bag can naturally break down in less than 180 days.It also breaks down in less than a day in water, and in less than a minute in boiling water. Hedge was happy to show it in his interview, he put an EnviGreen bag in water and ate it with a smile.
There are more than 15,000 tons of pla s tic waste in India every day. But only 9,000 tons are processed. In China, 3 billion plastic bags are used every day. Maybe the EnviGreen bag could be
a solution（解决方法）to be world problem of plastic pollution.
46. According to paragraph 2, we can know the following EXCEPT ________.
A. the EnviGreen bag can break down easily
B. the EnviGreen bag is made from natural materials
C. the EnviGreen bag can be eaten by humans and animals
D. the EnviGreen bag is a little harmful to the environment
47. The main idea of the third paragraph is “ ________ ”.
A. What Hedge thinks of the new bag
B. How Hedge makes the EnviGreen bag
C. Who sets up the EnviGreen company
D. How long it takes Hedge to make the bag
48. The underlined sentence in paragraph 4 shows that the EnviGreen bag ______.
A. is safe and can break down quickly
B. is useful although it is more expensive
C. looks and feels like a common plastic bag
D. will be used more widely than a common bag
49. The EnviGreen bag breaks down fastest in _______.
A. hot air
B. cold water
C. boiling water
D. natural air
50. From the last paragraph, we can infer(推断) ________.
A. all of India’s plastic waste is processed
B. India has the most plastic waste in the world
C. China produces more plastic waste than India
D. the EnviGreen bag may help solve the problem of plastic pollution
题材：环境保护
【主旨大意】本文是一篇说明文，主要介绍了Ashwath Hedge实验发明了一种人们和动物可