世界上最大的岛屿位于（  ）

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2015 年 7 月 31 日，国际奥委会第 128 次全会在马来西亚吉隆坡投票决定，将 2022 年冬奥会举办权交给北京。中共中央***、***、中央军委主席***致信申办 冬奥会代表团表示热烈祝贺，并希望在全国各族人民大力支持下，把 2022 年冬奥会办 成一届精彩、非凡、卓越的奥运盛会。

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   In most parts of the world, many students help their schools make less pollution（污染）. They join “environment（环境）club”. In an environment club, people work together to make our environment clean.
   Here are some things students often do.
   No-garbage（垃圾）lunches. How much do you throw away after lunch? Environment clubs ask students to bring their lunches in bags that can be used again. Every week they will choose the classes that make the least garbage and report them to the whole school.
    No-car day. On a no-car day, nobody comes to school in a car not the students and not the teachers. Cars give pollution to our air, so remember: walk, jump, bike, or run! Use your legs! It's lots of fun!
   Turn off the water! Did you know that toilets（抽水马桶）can waste twenty to forty tons（吨）of water an hour? In a year, that would fill in a small river! In the environment clubs, students mend those broken toilets.
   We love our environment. Let's work together to make it clean.