必修第三册 Unit 3 The world of science（word练习）-【勤径学升】2025年高考英语一轮总复习课时检测训练（外研版）

课时检测训练15　必修第三册　Unit 3　The world of science 对应学生用书P317 Ⅰ.阅读理解 A (2023·济南统一检测)Imagine a new smartphone product.It works the same way as any other smartphone，but when it is dropped，those cracks that appear after an annoying fall slowly begin to fade away，and the phone magically repairs itself.A team of researchers led by chemistry professor Takuzo Aida have found a way to create self-repairing plastics that can be used in smartphones，cars and other products.But their new plastics won’t only be used to create unbreakable products，but also help the fight against growing wastes harming the planet. 91% of plastics are non-recyclable and filling the Earth with wastes.The increasing plastics in landfills are a growing concern due to their negative environmental impact.In 2019 about only 9% of plastics were recycled globally，leading Japanese scientists to seek to find plastics that can start their own formation or self-repair. The self-repairing plastics are made by adding a tiny amount of a specialized substance into ordinary plastics to hold the monomers (单体) together by hydrogen bonds (氢键).When the new plastics are broken down by heat，instead of being burnt to wastes，the hydrogen bonds mix and allow for the formation of specially shaped monomers to create a foundation for more monomers to rebuild themselves.The team found that their self-healing plastics were able to automatically repair themselves at room temperature over an hour to regain their durability. The team’s work suggests great prospects for the future of plastics. “The technique could lead to the development of a made-to-last plastic that does not need to be recycled，”lead professor Aida said，“and can one day be used in products from smartphones to cars and even buildings.” ［语篇导读］ 本文是一篇说明文。日本化学教授相田卓三带领的研究组发明了一种可以自我修复的塑料，这种塑料有一天可以用于手机和汽车制造等，能够避免回收问题。本文重点介绍了该塑料的工作原理等信息。 1.What is the special feature of the new plastics? A.Hard to break. B.Cheap to produce. C.Good for health. D.Easy to recycle. 解析 细