随着人类活动的加剧,地球表面的臭氧层出现了严重的空洞,1974年被美国加利福尼亚大学的教授罗兰(F.Sherwood Rowland和穆连(Mario Molina发现。
1987年9月16日,全球46个国家的代表在美国纽约签署《关于消耗臭氧层物质的\'蒙特利尔议定书》(目前已有170多个国家签署,标志着各国对保护臭氧层的具体行动即将开始。1995年1月23日,联合国大会通过决议,确定从1995年开始,每年的9月16日为“国际保护臭氧层日”。旨在纪念1987年9月16日签署的《关于消耗臭氧层物质的蒙特利尔议定书》。
Tiger is one of the most valueable animals to human beings today. It is somehow like a cat, but much bigger than it. It lives in the forest, and feeds on small animals.
Nowadays, the number of the wild tiger is becoming small and small. Maybe there will be no tiger any more if people continue cutting the trees, destorying the living environment or hunt the tiger just for the skin. We must stop all these mistakes. We should protect them, because the world without tiger is not a completed one.
Tiger is one of the most valueable animals to human beings today. It is somehow like a cat, but much bigger than it. It lives in the forest, and feeds on small animals.
Nowadays, the number of the wild tiger is becoming small and small. Maybe there will be no tiger any more if people continue cutting the trees, destorying the living environment or hunt the tiger just for the skin. We must stop all these mistakes. We should protect them, because the world without tiger is not a completed one.
Giant Panda is our national treasure, the state can be said for the protection of giant pandas put a lot of human and material resources giant now has been the world's people the protection and care, which is a good thing, of course, the Tibetan antelope as the country's animal protection , The National People have been recognized, however, this tiger? The poor will be extinct Siberian tiger who is going to have a genuine concern and care a little bit?
According to statistics, the Siberian tiger left at present, less than 20, still such a small number of these survive, has had imagined. Two years ago, in the mountains of Huanren, Liaoning found to be a man to die under the presentation of the Siberian tiger, from this we can see that the above countries and the people of the importance we attach to it, this first Manchurian tiger is actually how the dead do not Conclusion, and the other is only from the northeast where hu came to the place where the wonder and the third is the matter did not rise to the national media in particular. This really puzzled the other person you! Is it really the other tiger who fear love is not worth it, it really fate of the Siberian tiger so?
Towering mountains should not unique to human beings, should not have dense forest unique to human beings, rivers clear this should not be unique to human beings, the Siberian tiger survival of this nature should not be unique to human beings. Siberian tiger to the left of a piece of heaven and earth to survive it, the High IQ is the human species, there are still ways to leave that piece of local survival, and the tiger have to leave that piece of the local dead; you save tigers, is the human population control, engage in Family planning, and the Siberian tiger is scarce Rending it! Now we can hear the cries of tigers in the future even the Siberian tiger can be heard the cries.
Children Day is coming. I'm very happy. I'm going to have a happy Children's Day. First,I'm going to the bookstore. I'm going to buy some comic books. Then , I'm going to my grandparents' home. I'm going to have a big dinner with my grandparents. And I'm going to watch TV with them, too. Oh, my Children Day! Come on. I can't wait.
臭氧层是指距离地球25-30公里处臭氧分子相对富集的大气平流层。它能吸收99%以上对人类有害的太阳紫外线,保护地球上的生命免遭短波紫外线的伤害。所以,臭氧层被誉为地球上生物生存繁衍的保护伞。
保护臭氧层就是保护蓝天,保护地球生命。为了唤起公众环境保护意识,1995年1月23日联合国大会决定,每年的9月16日为国际保护臭氧层日(International Day for the Preservation of the Ozone Layer,要求所有缔约国按照《关于消耗臭氧层物质的蒙特利尔议定书》及其修正案的目标,采取具体行动纪念这个日子。
在生活中,父母对我们的爱无处不在,在我身边就发生过这样一件事。
有一次,我考试考的成绩很差,我想惨了,回到家又要被老爸挨批了,嗨!真是没天理呀。一间屋门,就听到爸爸说:“考试考得怎么样啊。”我埋着头垂头丧气的说出了我的成绩,爸爸大声说:“什么,竟然考的那么差。”我就被爸爸的声音吓得退后了几步,我对爸爸大喊:“人生总会有很多次失误,我就失误了这一次,怎么了。”这时,妈妈走过来说:“原谅孩子吧,孩子就失误了这一次,你没失误过呀。”爸爸妈妈开始吵起来,我冲出了客厅跑进了自己的屋里,趴在床上,我听到爸爸妈妈现在正在为考试这件事争吵着,到了学校又一次考试即将来临,过了几天,开始考试了,我回忆起爸爸批评我时对我说的话,做题时必须认真,考完试,卷子很快就批完了,我考的分对于我来说还行,让爸爸看了看,爸爸说:“还行,上次批评你是因为为你好,看见没,批你一顿,现在考好了吧。”我高兴地回答嗯。
我终于明白了爸爸为什么批评我,是因为为了我好。
生活中充满了爱,它无处不在,我最清楚的是爸爸给我的爱。
上三年级的时候,数学总是拖我的后腿。每当我望着那只有七八十分的考卷时,较为内向的我总会把泪水在眼眶里打转。每当这时,我真想大哭。我的一切,都尽收爸爸的眼底,他总是削好一个苹果,放在盘子里,端到我的面前,亲切地说:“女儿,吃吧!”等我吃完苹果,爸爸耐心地说:“孩子,你看······我抬起头,望着爸爸那鼓励的目光,我又重新拾起了信心。
从那以后,爸爸每天都从他那繁忙的工作中抽半小时来给我补习数学。不厌其烦的教我做每一道做错的练习题,直到我会了为止。每次写完一项数学作业,爸爸都会认真地批改。作业本中的每一道练习题,每一个数字,他都会给我讲解清楚。
又是一次。我得了九十五分,这离不开爸爸的讲解与教导。当他看见我九十五分的试卷时,他欣慰地笑了。因此,我慢慢变了,变得有自信和快乐了,这都应该感谢我的爸爸。
爸爸对我的爱是无私的,我尊敬爸爸,爸爸也理解我。我感谢您,爸爸!
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