2022年广东专插本英语真题
It all happens because of recycling.This simple waste we throw away is a“natural resource”that, with recycling, can be used to produce a variety of new products.Unfortunately, America recycles only 10%of its rubbish, burns 10%and deposits(存放)80%in waste disposal grounds.As a result, it has to cope with a serious solid wasteproblem.Every year, Americans throw away about 160 million tons of rubbish.Of that total, plasticsmake up less than 8%, paper about 36%, and glass and metal about 20%, all by weight.Plasticsare naturally lighter, but still, when pressed together, account for only about 20%by volume(体积).As a result, in the past 10 years the United States'waste disposal grounds have decreasedfrom about 18,500 to 6,000.In five years 2,000 more will close.In the process of finding solutions, some people have proposed to stop using plastics.Unfortunately, stopping using plastics would do much harm and no good.We would lose allof the safety, health and convenience features of plastics.Besides, packaging(包装)would still be needed.A1987 study shows what would happen ifplastics were not used--the energy needed to produce other packaging, its cost, and the volume ofwaste col