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that few manufacturers will use.Only two kinds of plastic are commonly recycled in the United States:the kind in plastic soda bottles.polyethylene terephthalate,or PET;and the plastic found in milk containers-high-density polyethylene,or HDPE.Together,those plastics make up only about a quarter of the world's plastic trash.And when those plastics arerecycled,they aren't good for much.Melting plastic down to recycle changes its consistency,so PET from bottleshas to be mixed with brand-new plastic to make a sturdy final product.Recycling a mix of multicolored HDPEpieces creates a dark plastic good only for making products like park benches and waste bins,in which propertieslike color don't matter much.The difficulties of recycling plastic into anything manufacturers want to use is a big reason why the world islittered with so much plastic waste,says Eric Beckman,a chemical engineer at the University of Pittsburgh.In2018 alone,the United States landfilled 27 million tons of plastic and recycled a mere 3 million,according to theU.S.Environmental Protection Agency.Low recycling rates aren't just a problem in the United States.Of the 6.3billion tons of plastic that have been discarded around the world,only about 9 percent has gotten recycled.Another12 percent has been burned,and almost 80 percent has piled up on land or in waterways.8.What is the purpose of paragraph 1?A.To show a lifestyle.B.To describe a phenomenonC.To introduce a topic.D.To make a proposal.9.What does the underlined word "meticulous"mean in paragraph 2?A.PainfulB.ForgetfulC.Regretful.D.Mindful.10.What can we infer from the last paragraph?A.Manufacturers don't want to use recycled plastic.B.There is an urgent need to reduce plastic wasteC.More plastic can be dealt with by burning.D.U.S.is to blame for the plastic problem.11.What is the main idea of the text?A.The causes of plastic pollution.B.The characteristics of different plastics.C.The ways that most plastics are recycledD The reasons why many plastics are not recycled.D英语试题第6页共12页
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