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    余幼时即嗜学。家贫，无从致书以观，每假借于藏书之家，手自笔录，计日以还。天大寒，砚冰坚，手指不可屈伸，弗之怠。录毕，走送之，不敢稍逾约。以是人多以书假余，余

    因得遍观群书。既加冠，益慕圣贤之道。又患无硕师名人与游，尝趋百里外，从乡之先达执经叩问。先达德隆望尊，门人弟子填其室，未尝稍降辞色。余立侍左右，援疑质理，俯身倾耳以请；或遇其叱咄，色愈恭，礼愈至，不敢出一言以复；俟其欣悦，则又请焉。故余虽愚，卒获有所闻。

    当余之从师也，负箧曳屣，行深山巨谷中。穷冬烈风，大雪深数尺，足肤皲裂而不知。至舍，四支僵劲不能动，勝人持汤沃灌，以衾拥覆，久而乃和。寓逆旅，主人日再食，无鲜肥滋味之享。同舍生皆被绮绣，戴朱缨宝饰之帽，腰白玉之环，左佩刀，右备容臭，烨然若神人；余则缊袍敝衣处其间，略无慕艳意。以中有足乐者，不知口体之奉不若人也。盖余之勤且艰若此。

    195 countries reached an agreement(协议) on Dec. 12, 2015 after two weeks' talks in Paris. They talked about climate(气候) change. It is the first time in history that most of the world's countries, rich or poor, promised to take action to deal with climate problems.

    Below is a chart showing where the greenhouse gas(温室气体) comes from.

Where is greenhouse gas from?

    The Paris Agreement(巴黎协定) sets up a goal of cutting down the earth temperature to less than 2℃. If the warming gets above 2℃， there will be serious problems on the earth like natural disasters.

The agreement also asks countries to volunteer to do things. For developed countries, they will do even more. They have a plan to offer over 100 billion dollars to help poorer countries to develop clean energy like water and wind power.

    However, the Paris Agreement won't solve earth warming by itself. The future also depends on how well each country will carry out their promises.