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: 一区二区三区精彩视频 | 成人免费视频观看视频 | 久久人人爽人人 | 日韩在线一区二区 | 久久亚洲精品无码aⅴ大香 深爱激情站 | 国产日韩欧美在线观看视频 | 免费无码精品黄av电影 | 日本a级片一区二区 | 日韩第八页| h国产视频 | 国产日韩欧美精品在线观看 | 91爱视频| 天天槽| 99re在线观看视频 | 91久久精品一区二区三区 | 国产黑色丝袜在线播放 | 国内少妇精品 | 中字幕视频在线永久在线观看免费 | 尤物视频网站在线观看 | 亚洲深夜在线 | 国产午夜男女爽爽爽爽爽 | 欧美午夜寂寞影院 | 久久精品极品盛宴观看 | 国精一二二产品无人区免费应用 | 最新国产精品精品视频 视频 | 涩涩屋视频在线观看 | 美女网站免费观看视频 | 春日野结衣av | 日本无码欧美一区精品久久 | 人妻少妇精品无码专区动漫 | 亚洲日韩看片成人无码 | 手机av在线网 | 无码av无码天堂资源网 | 成人www视频在线观看 | 亚洲国产精品免费在线观看 | 13小箩利洗澡无码视频网站免费 | 四虎性视频 | 亚洲成人中文字幕 | 悠悠久久久 | 国产亚洲熟妇在线视频 | 真人与拘做受免费视频 | 成人性毛片| 日本少妇中出 | 亚洲第一色在线观看 | 欧美成人免费视频一区二区 | 亚洲欧洲视频在线 | 国产人妖ts重口系列网站观看 | 国内精品久久久久影院亚瑟 | 无码av最新清无码专区吞精 | 欧美精品a片久久www慈禧 | 亚洲一二区 | 亚洲va成无码人在线观看天堂 | 亚洲 欧美 日韩在线 | 肉体裸交137日本大胆摄影 | 69精品国产久热在线观看 | 四虎院影wwwf678com | 91干干干| 午夜dj高清免费观看视频 | 国产成人无码免费看片软件 | 人妻少妇精品久久 | 99久久久久国产精品免费 | 综合视频一区 | 91精选国产 | 久久久久99精品成人片三人毛片 | 欧美日韩中文字幕视频不卡一二区 | 成人黄色片视频 | 国产精品无码av片在线观看播 | 真实国产老熟女无套中出 | 538国产精品视频一区二区 | 国产91综合一区在线观看 | 蜜桃视频在线观看www社区 | 泄欲的丰满少妇激情 | 欧美香蕉网 | 亚洲午夜精品久久久久久久久久久久 | 999在线精品视频 | 久久/这里只精品热在线获取 | 各类熟女熟妇真实视频 | 中文成人无码精品久久久动漫 | 97久久超碰国产精品旧版 | 精品一区二区三区三区 | 亚洲国产精品综合久久网络 | 少妇激情一区二区三区视频 | 午夜久久久精品 | 国产免费看又黄又粗又硬 | 国产精品自产拍高潮在线观看 | 一区二区三区国产好的精华液 | 午夜福利无码一区二区 | 亚洲日韩欧美内射姐弟 | 久久综合九色综合欧美亚洲 | 日本免费高清一本视频 | 国产igao激情在线入口 | 亚洲欧美日韩精品久久奇米一区 | 久久精品国产99精品最新 | 男人的天堂在线 | 国产一区二区三区a | 成人爽a毛片免费视频 | 成人的毛片 | zzijzzij亚洲丰满少妇 | 女人与公拘交酡全过程 |