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.
“书籍是人类进步的阶梯”这是高尔基说的一句话。
我从小就喜欢看书,书一直是我崇拜的一件东西,书就像我的另一双眼睛,带我去参观了“运河之国 ”——荷兰,带我去了唐人街金三角,带我去领悟人世间的真情……
“书籍是全世界的营养品”如果没有书,人类的文明会渐渐低下,爱迪生说过成功的公式是A+B=C,A是付出,B是辛勤,C是成功。而我觉得成功的公式是A+B+C=D,A是付出,B是辛勤,C是书籍,D是成功,一定要多读书,这样你的知识才会不断增长。
我自己发明了很多读书方式,一:鲸吞,大家都知道鲸鱼吧,它们是哺乳动物,它进食时先张开大嘴,在海中游,然后把海水从须板中滤出来,把小鱼小虾吞进肚子里,我们可以大量阅读。把那些精美的词句记在脑子里。二:牛嚼。大家肯定知道牛,牛白天在不停地吃草,到午夜嘴还在慢慢磨,我们可以先大量阅读再细细品味。
书是人类文明的长生果,也是使人类文明不衰的一个原因,让我们多多看书,好好学习,长大为祖国奉献吧!
电子游戏,特别是在手机上的电子游戏,之所以能够吸引这么多人去关注,并付出难以理解的热情,一个重要的原因就是容易沉迷,就像是陷入泥潭的人,再也爬不上来,只能堕落下去,陷进其中。
时代的发展,科技的进步,从信封传递信息,到座机,又到现在的智能手机,这可以说是人类文明的一大飞跃,也让世界走上了进步。但在这发展的同时,更多的隐患出现,有一些软件科技固然是好,但有一些人却误入歧途,走上一条没有归途的路。而且电子游戏富有挑战性,刺激性……因此,有的同学沉溺其中学习成绩直线下降。青少年患上网瘾后,从精神依赖发展为躯体依赖,导致长时间的沉迷于网络,身体性能下降,如视力下降,情绪低落,记忆力减退,食欲不振,形成精神依赖。据报道:一初中生因连续数天打电子游戏而在网吧猝死。可见电子游戏的危害到底有多大。
试想,那些本来成绩一般般却痴迷于游戏的学生,他们放下手中的电子游戏,用来学习,那他们的成绩会有多大的进步啊。没错,适当的游戏是可以令人放松,但又有多少人能真正做到“适当”的游戏呢?
那么,游戏究竟是如何让人成瘾?游戏过程中玩家能够获得心理回报,了解游戏中的成就。游戏也能够令玩家找到归属感和认同感,他会把你真正的送入那个“无与伦比”“伟大”的世界。上瘾者会对这种回报和归属感和认同过分需求。从而造成负面影响。游戏能在短时间内带来回报,而学习与工作则需要长时期才能带来回报。
电子游戏带给我们的是表面喜悦和激动,但它背后隐含的则是沉迷与消极。没有人不喜欢游戏,但真正能做到自律的却很少,所以作为一名青少年我们还是远离游戏的好。
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