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1、认真阅读下列短文，并根据所读内容在文章后表格中的空格里填入最恰当的单词。注意：每空格1个单词，不得用文章中的单词。Scientists develop non-stick chewing gumScientists have developed a non-stick chewing gum that can be easily removed from pavements, shoes and clothes.The new gum, the result of polymer research at the University of Bristol, could be launched
2、commercially in , its developers said on Friday.If it catches on, the product will solve a major headache for local authorities around the world.The advantage of our Clean Gum is that it has a great taste, it is easy to remove and has the potential to be environmentally degradable（可降解性）J said Terenc
3、e Cosgrove, a professor of chemistry who helped found a company called Revolymer to commercialize the technology.Todays chewing gums are made from synthetic latex, which is resistant to the weather and is strongly adhesive. The new gum adds a special polymer to modify its properties, making it far l
4、ess sticky.In two street trials, leading commercial gums remained stuck to the pavement three out or four times, while Clean Gum came away naturally in all cases, Revolymer said.Title: Scientists develop non-stick chewing gumMain ItemsContextsHigh_11. The new gum has a great taste.2. It is easy to2u
5、p.3. It has the3to be environmentally degradable.A different4The new gum adds a special polymer to5its properties.The 61. The new gum will solve a major _7for local authorities aroundthe world.2. The new gum can8off naturally in all cases.Thedevelopers99_The new gum, the _10of polymer research at the University ofBristol, could be launched commercially in .Keys: 1. qualities 2. clean 3. capability 4. component 5. change 6. effects 7. problem/trouble 8. fall 9. prediction 10. outcome