色噜噜人体337p人体 I 超碰97观看 I 91久久香蕉国产日韩欧美9色 I 色婷婷我要去我去也 I 日本午夜a I 国产av高清怡春院 I 桃色精品 I 91香蕉国产 I 另类小说第一页 I 日操夜夜操 I 久久性色 I 日韩欧在线 I 国产深夜在线观看 I 免费的av I 18在线观看视频 I 他也色在线视频 I 亚洲熟女中文字幕男人总站 I 亚洲国产综合精品中文第一 I 人妻丰满熟av无码区hd I 新黄色网址 I 国产精品真实灌醉女在线播放 I 欧美巨大荫蒂茸毛毛人妖 I 国产一区欧美 I 欧洲亚洲1卡二卡三卡2021 I 国产亚洲欧美在线观看三区 I 97精品无人区乱码在线观看 I 欧美妇人 I 96精品在线视频 I 国产人免费视频在线观看 I 91麻豆国产福利在线观看

水的語文演講稿

時間:2021-06-11 10:24:55 演講稿 我要投稿

關于水的語文演講稿

  Good evening, ladies, gentlemen and fellow students,

關于水的語文演講稿

  I am very glad to be here to enjoy some of my ideas with you. First of all, let me introduce myself to you. My name is .I was born in ____. I am from Class 82.I study hard in my class. I like English very much. This evening I want to enjoy how to save water.

  As is known to all, there is only one globe in the world and water only exists on the earth. So water is very important for us. Without water there can be no life on earth. All animals and plants need water. Man also needs water. Although nearly 70 % of the earth's surface is covered with water, about 97% of this huge amount is sea water, or salt water. Man can only drink and use the other 3% -- the fresh water from rivers, lakes, underground, and other sources. And we cannot even use all of that because some of it is in the form of icebergs and glaciers . Even worse, one problem is that some of it has been polluted. Water pollution can be seen

  everywhere. The other problem is our need for water is increasing rapidly. So water is in short.

  Only if we do something to deal with this problem can we avoid a worldwide water shortage later on. A limited water supply would have a bad effect on agriculture, industry and our life. Let me give you just one small example of how necessary water is to industry. Did you know that to produce a single ton of steel, it takes about 91, 000 liters of waterAnd how about our schoolI can tell you about 30 tons a day.We all have to learn how to stop wasting water. One of the first steps we should take is to develop ways of reusing it. Experiments have already been done in this field, but a small sum. What should we do to save water thenI think still have some ways to save water. Firstly, don’t pollute water, especially factories. Secondly, try to reuse water . It’s the most important way for us to save water. Thirdly, when we finish washing the clothes, we can use the water to clean the floor; At last, take shorter showers and don’t leave the tap running when we don’t need to use water. If we do not save water, the last drop of water will be our tear. To protect water is to protect our life.

  Thank you.

【水的語文演講稿】相關文章:

《水刀》語文閱讀答案02-04

水的演講稿06-29

小學語文《水》教學計劃06-12

周莊水韻語文教案02-18

《周莊水韻》語文教案02-18

關于水的演講稿06-29

珍惜水演講稿09-20

水刀的力量 語文閱讀訓練答案06-13

語文地球上的水閱讀題及答案06-12

主站蜘蛛池模板: 久久亚洲国产精品123区 | 又爽又黄又无遮掩的免费视频 | 国产亚洲欧美一区二区三区在线播放 | 亚洲色成人网站www永久四虎 | 久久中文字幕人妻丝袜 | 欧美精品亚洲精品日韩专区va | 成人午夜精品福利 | 国产亲子乱了中文 | 日日日日干干干干 | 日韩免费网 | 国产免费又爽又刺激在线观看 | 午夜影院啪啪 | 老司机午夜视频十八福利 | 亚洲日本另类 | 搡老岳熟女国产熟妇 | 亚洲а∨天堂2019无码 | 欧美综合在线激情专区 | 一色桃子656中文字幕 | 超清av在线 | 尤物网站视频免费看 | 人av在线| 亚洲精品国产精品乱码不99热 | 全部孕妇毛片丰满孕妇孕交 | 久久亚洲国产精品亚洲老地址 | 成熟丰满少妇激情xxxx | 综合久久精品 | 国产偷抇久久精品a片蜜臀av | 欧美a级黄 | 免费人成网站www | 色天使在线观看 | 天堂8在线最新版在线 | 性感美女久久久 | 666av视频在线观看 | 污污网站在线看 | 上司人妻互换hd无码 | 亚洲第一男人天堂 | 欧美日韩手机在线观看 | 国产精品自在线拍国产第一页 | 日韩视频a | 日韩一级中文字幕 | 色欲综合久久躁天天躁蜜桃 | 在线观看一区二区三区国产免费 | 日韩免费影视 | 四虎av网址 | 向日葵视频色 | 免费黄色一级视频 | 色哟哟亚洲 | 免费又黄又硬又爽大片 | 久久精品人妻无码一区二区三区 | 996久久国产精品线观看 | 欧美日韩在线观看成人 | 人人看片人人看特色大片 | 无码高潮少妇毛多水多水 | 日本亚洲色大成网站www久久 | 六月天综合网 | 欧美日韩一区二区三区在线观看视频 | 火箭视频在线观看精品 | av福利网址导航 | 国产成人免费ā片在线观看 | 日本高h视频 | 性生交大片免费视频网站 | 老女人性生交大片免费 | 人妻熟女一区二区aⅴ千叶宁真 | 咪咪久久| 激情五月av久久久久久久 | 欧美日韩国产mv | 精品一区二区三区三区 | 日韩精品在线网站 | a级黄色毛片三 | 国产香蕉网 | 激情导航 | 午夜亚洲国产理论片二级港台二级 | 激情床上视频 | 色v99在线影院 | 亚洲少妇久久 | 欧美又粗又猛又爽的免费网站 | 色视视频| 糖心vlog一区二区三区在线 | 在线aⅴ亚洲中文字幕 | 大香线蕉伊人久久爱 | 久久久久中文字幕 | 乌克兰丰满少妇毛片 | 麻豆国产尤物av尤物在线看 | 爱看福利视频 | 激情综合av | 91免费看视频 | 中文字幕亚洲情99在线 | www.狠狠插 | 国产精品久久久久久久久久久久午衣片 | 欧美精品一区二区在线观看 | 一区二区三区在线观看国产 | 国内自拍xxxx18 | 二色网 | 妖精视频一区二区三区 | 性做久久 | 国产欧美性 | 国产乱码一二三区精品 | 丁香美女社区 | 亚洲欧美精品综合在线观看 |