【Earth&Sky】创造更加绿色的塑料制品_英语听力练习mp3下载-科学-沪江听力酷

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【Earth&Sky】创造更加绿色的塑料制品

听力简介：

听写填空,只写填空内容,不抄全文,5个左右的句子,不用写标号,注意标点,口语中因结巴等问题造成的重复单词只写一遍~

Hints:
polyethylene
polypropylene

Geoffrey Coates: Most people would acknowledge that plastics are, they are really essential. [---1---]

You're listening to Geoffrey Coates, a chemist at Cornell University. [---2---]

Geoffrey Coates: [---3---] So, going to a renewable resource - something that's plentiful in the environment - is of a lot of interest.

[---4---] Coates said the biggest challenge was finding the right catalyst - that's a chemical that converts other chemicals from one form to another.

Geoffrey Coates: Carbon dioxide is a gas, and obviously plastic is a solid. [---5---]

Coates said that his environmentally friendly - plastics biodegrade more quickly than traditional plastics.

Geoffrey Coates: [---6---]

Our thanks today to the Camille and Henry Dreyfus Foundation. E&S, is a clear voice for science.

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