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材料一:我国的所有自然灾害中,气象灾害中71%,地震灾害占8%,海洋灾害占7%,农林牧业生物灾害占6%,其他灾害占8%.
材料二:1880—2012年全球平均温度升高了0.85℃,上升2℃产生的变化有极端热事件增加,全球冰川不断减少,海平面继续上升.超过2℃造成的危害有:人口贫困化,人口健康受损,物种灭绝的风险增加,洪灾风暴潮等危险增多,作物减产,可再生地表水和地下水减少.
材料三:途经8个省的南水北调工程解决北京、天津、河北、河南四省取1亿多人用水危机,沿岸1200万亩耕地可自留灌溉,汉江防洪提高到百年一遇.
材料四:中国一年因雾霾造成的经济损失6720亿元,相当于GDP的1.2%.例如雾霾天气使番茄和辣椒晚成熟至少30天,使太阳能发电比晴天发电降低了约80%.

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    When it comes to generation gap (代沟), we usually think of different tastes in music, or pastimes. But now the generation gap is handwriting. After one teacher in Tennessee discovered that she had students who couldn't read what she was writing on the board, she posted it on the Internet saying that handwriting should be taught in schools.

    Others who are against it claim that handwriting has become out of time in our modern world. Typed words have become a main form of communication. Once a practical skill, handwriting is no longer used by most of Americans. It is no longer taught in schools, and some claim that the time that it would take to teach it could be put to better use, for example, by teaching the technical skills.

    But even in today's world there are still plenty of reasons to pick up a pen and write on the paper. In America, signatures (签字) by hand are still often required, for example, signing for a registered letter and buying a house. And original signatures are much more difficult to fake (伪造).

    There is also strong evidence that writing by hand is good for the mind. It makes a different part of the brain active and improves fine moving skills in young children. People are also more likely to remember what they write by hand than what they type, and the process of writing by hand has been shown to stimulate ideas. Not only those, studies have shown that kids who write by hand learn to read and spell earlier than those who don't.

    Yes, we live in a modern world, but we live in a modern world of basic and important values.