as we know , water is very important to man, we can’t live without water. the amount of water which is suitable to drink is less and less. but some people don’t care about it .they waste a lot of water in their daily life. even worse, they pour dirty water in to rivers. they throw rubbish into rivers , too. many rivers and lakes are seriously polluted.something must be done to stop the pollution. only in this way can we live happily. if we don’t save water, the last drop of water will be a tear-drop of us.
we know that despite the fact that seventy percent of the earth's surface is covered with water, only a little part of it is fresh water. yet the demand for fresh water in our daily life and in industry seems great. moreover, with the expansion of the population and development of industry, the amount of the fresh water needed will increase even rapidly. it is estimated that if such a trend continues, the fresh water on earth will be exhausted very soon. what is worse, more and more water resources are being polluted, making the water unfit to use.
in addition,we must warn the people of the importance of water and the danger we are facing.for example, in most asian societies where rice is the staple food, the water used after cleaning rice contains various nutrients for plant growth and is an excellent detergent to flush the toilet. furthermore, the intriguing idea of converting the inexhaustible sea water to fresh water supplies will be the ultimate solution.
春天是个运动的好季节,为了鼓励人们外出运动,市里面举行了一场国际马拉松比赛,除了许多国内外的职业选手以外,还有好多普通的市民也加入了马拉松比赛之中。我和爸爸也参加了马拉松比赛,不过考虑到我们的身体素质,我和爸爸一起报的五公里马拉松,也就是说,等到职业选手比赛开始之后,我们会跟着他们跑五公里,就算结束了。
到了马拉松这一天,我和爸爸早早的来到了比赛的起点,做起了准备活动,不一会就有好多的运动员来到了场地里面,大家一起做着比赛前的紧张热身。到了早上九点的时候,比赛正式开始了,随着裁判的一声令下,大家都开始奋力的奔跑起来。不同与那些职业长跑运动员,我和爸爸早早的就定好了目标,那就是慢慢的跑完我们的五公里就好。虽然如此,但是我们两个仍然跑的很吃力,一度我就想要放弃了,但是看着前面爸爸还在一步一步坚定地往前面奔跑着,再听一听周围此起彼伏的加油的声音,我还是咬着牙坚持了下来。终于,当我和爸爸冲过五公里的终点时候,我们两个都开心的笑了。
感谢这次马拉松比赛,让我们感受到了外出运动的乐趣,也让我懂得了坚持的重要!
一年一度的森林花样马拉松开始了,上一届比赛的赢家猎豹闪电还在参赛名单之中。一直不敢报名的狗小弟雷电在哥哥闪电的多次鼓励下,也参与进来了。
比赛的那一天,猎豹闪电给了弟弟一个锦囊,并告诉他只有非常危急的\'关头才可以打开。
比赛开始了,第一关灌木丛迷宫,参赛选手们依次进了迷宫。迷宫里面很黑,雷电伸手不见五指,非常害怕。雷电想要打开锦囊,但是又觉得还不算最危急的时候。这时,他想起了小时候玩迷宫游戏用的靠墙法,就利用靠墙法,成功地走出了第一关。
第二关,激流勇进。雷电刚走进了滑道,就一个360°大翻滚,飞快超越了小猫喵喵,小熊壮壮,小老鼠多来米等选手。雷电觉得状态越来越好了。
终于到了第三关,极限冲刺。雷电和闪电遥遥领先了其他选手。这是一场兄弟对决,到底谁会赢呢?首先看见了闪电一个猛扑,超过了雷电,已经离终点近了!更近了!雷电一心想着终点,它将这股力变成了冲刺的助力,四条腿绷直,一个完美的弧线,居然飞跃过了终点线!
比赛结束了,颁奖的时候,雷电这才想起来锦囊还没有用,他好奇地打开一看,只见上面写着“只有面对才能成功!”
终于等到了周五下午我早早地来到置地公园的集合地点。 看到已经有同学在那儿了,同学们一副迫不及待的表情,一会儿和别人叽叽喳喳地聊天,一会儿激动地来回走动着。
开始走路了,我们马上跟着老师健步走起来,我们就像出笼的小鸟一样欢呼雀跃。我和我的两个搭档手牵着手,像三兄弟一样兴高采烈地走着,我们一点儿也不累,可是有的同学还没走几步就累得气喘吁吁上气不接下气的,老师就让他们去救助点休息一下。 同学们看我又瘦又小就劝我也去休息,可我却一直咬牙坚持着,我要让他们看看我虽然瘦小,但是体力并不差,我也是一个有恒心的\'人。 途中,有的班级为了鼓舞士气还唱起了歌,老师也在旁边不停地鼓励我们。
终于到终点了,我们个个累得满脸通红,汗水把衣服都湿透了,这时老师派人给我们送来了牛奶和面包,我们像三十天没吃饭的饿鬼似的狼吞虎咽地吃起来。
解散后,妈妈接我回家,走在路上,我给老师说:“我喜欢这样的活动,因为这样的活动既丰富了我们的生活,又锻炼了我们的体质。”
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