地球的人们:
你们好,我是一只北极熊,生活在地球的最北边,那儿衣食无忧,多亏了臭氧层,它是地球的一道天人屏障,使地球上的生命免遭强烈的紫外线伤害,当然那也包括我。
然而好景不长,近10年来,地球上的臭氧层真在遭到破坏。臭氧层被破坏后,有不少的危害,他不但影响了人类的健康也危害了我的健康。臭氧层破环后,吸收紫外线的能力大大降低了,使得人类和我吸收过量紫外线辐射的机会大大增加了。由于臭氧层有效的挡住了来自太阳紫外线的侵袭,才使得人类和地球上各种生命能够存在,繁衍和发展。
我的远房亲戚企鹅住在南极,据说在1985年,南极上空出现臭氧层空洞,打牌1994年,南极上空的臭氧层破坏面积一达2400万平方公里,北半球上空的臭氧层比以往任何时候都薄,欧洲和北美洲上空的臭氧层平均减少百分之十——百分之十五,西伯利亚上空甚至减少百分之三十五。地球上的科学家警告说,地球上臭氧层被破坏的程度元比一般人想象要严重得多。我想神通广大的人类都无法阻止灾难的降临,更何况我们这些手无缚鸡之力的动物们该怎样面对这场大灾难呢?
我问了左邻右舍才得知,原来氟利昂等消耗臭氧物质是臭氧层破坏的元凶,氟利昂是本世纪20年代合成的,其化学性质稳定,不具有可燃性和毒性,被当作制冷剂、发泡剂和清洗剂,用途很广泛,它受到了人们的肯定。80年代后期,氟利昂的生产达到了高峰,产量达到了144万吨。在对氟利昂实行控制之前,全世界向大气中排放的氟利昂已达到了20xx万吨。由于它们在大气中的平均寿命达数百年,所以排放的大部分仍留在大气层中,其中大部分仍然停留在对流层,一小部分升入平流层。在对流层相当稳定的氟利昂,在上升进入平流层后,在一定的气象条件下,会在强烈紫外线的作用下被分解,分解释放出的氯原子同臭氧会发生连锁反应,不断破坏臭氧分子。科学家估计一个氯原子可以破坏数万个臭氧分子。
人类啊!世界危在旦夕,希望你们能够 少排放化学废气, 多植树造林,不用喷雾剂、汽车、空调、冰箱等 如果你们能够这样,那将是我们所有动物的大恩人!
来自:北极熊兄弟
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.
To see a world in a grain of sand,
And a heaven in a wild flower,
Hold infinity in the palm of your hand,
And eternity in an hour.
一沙一世界,
一花一天堂,
手中即无限,
永恒亦短暂。
不知道什么时候,北极早就没了,冰山融化后,我的祖先们就迁移到大陆。北极的水淹没了很多地方,连爱斯基摩人都走光了。
也许你会问,为什么我还叫北极熊。其实这个问题,世界动物保护协会的人早就商讨过了:“北极都不复存在了,北极熊是否该叫‘白熊’呢?”经过无休止的争论后,结果是:仍叫北极熊,起码让世人知道北极的曾经存在。
我现在生活在一个绿草茵茵的地方。这里热,对我来说很热,但是这确实是世上最凉爽的地方了,这里的平均气温只有10摄氏度,而别的地方早已过了40度了吧!
这里的生活很闲逸。还有一只山羊在陪伴我。这只母山羊老了,名字叫“苏欧”,不够可爱。她喜欢往事,喜欢诉说往事。这点,我很喜欢,我是只爱听故事的熊。
山羊告诉我:“以前的人喜欢吃羊肉,天天涮羊肉,‘小肥羊’的老板赚了不少钱。”我说:“正常,以前的世界。”
山羊告诉我:“以前有种叫皇族的人,他们喜欢吃熊掌,天天让人往宫里运。”我说:“正常,古代的宴席。”边说我还边看着自己的前掌。
其实,真的'很正常。人类什么不吃?吃到现在又剩下什么?别说羊肉,有肉吃就不错了,就算能吃到,那些动物都是人工饲养的,大量的催生素,干脆买一瓶自己灌下肚子算了。山羊是吃草的,不必担心什么,我完全不明白天天被我们踩在脚下的草有什么好吃的。我曾经尝试过,恶心得想吐。
每天都会有一个被称为“汽车”的大匣子在我们身边经过,时不时都会丢下几条鱼。我一直认为这是运鱼车,所以很快乐地进食。听山羊说,我以前的祖先是吃海豹的,我苦涩的笑笑,别说海豹了,连我身边的这只山羊都是保护动物,希望值哪能那么高呢?
一次,我问了山羊一个具有挑战性的问题:“既然北极都不在了,南极还会存在吗?如果不在了,企鹅去哪了?”山羊只是边嚼草边说:“管好自己,顾好眼前。”
后来我才知道,我所在的地方,是人类的自然公园。那些会丢下鱼的车,载的是游客,他们丢鱼下来,只是一种“亲自喂喂北极熊”的游戏罢了。那时,我身边已经多了很多动物,包括南极来的企鹅。不是因为人类不爱动物才让我们挤一块儿住,而是已经拥有130亿人口的地球实在是没地方了。
当我知道以往以及现在的所有事情后,我已不再年轻。山羊死后,我成为了那诉说故事的接班人,为其他动物诉说往事,我也是只怀旧的熊。
How to prevent the H7N9?
As is well known,the A flu is spreading throught our country. However, if we negnect it, the deadly H7N9 may cause more infectors,or even more deaths. So what is the most important is that we should take some effective measures to prevent it.They can be listed as follows.
Firstly,it is necessary for you to realize the Avian flu can be prevented if you develop good living habits. For example,you shouldn’t forget to wash your hands before meals.Besides,don’t spit everywhere and try to cover your mouth or nose with paper or hankerchiefs when you have to cough or sneeze.What’s more, remember to wear the mouth-cover if you have to go to the public places, such as the crowded cinemas,supermarkets, buses,where the A flu may spread easily.
Secondly,of course, taking exercise more often and taking good sleep to build your body are wise choices for you to reduce the risk of being infected.
Last but not the least, if you are unlucky to be infected with the slight flu cold, try to stay at home,and take some medicine. Do pay attention to your daily body temperature. If you have a high fever, go to the hospital without delay for further treatment. Make sure you are not expected to come back to school before the cold or flu is cured.
Only by doing like this can you prevent or defeat the A flu in the end.
Expert tips on how to prevent avian influenza H7N9 collated by current argument data dictionary
1.平时加强体育锻炼,多休息,避免过度劳累,不吸烟,勤洗手;注意个人卫生,打喷嚏或咳嗽时掩住口鼻。
1 usually strengthen physical exercise, rest more, avoid excessive overworked, do not smoke, wash their hands; pay attention to personal hygiene, when sneezing or coughing and cover your nose and mouth.
2.保持室内清洁,使用消毒液清洗的地毯,避免使用难以清洗的地毯,保持地面、天花板、家具及墙壁清洁,确保排水道通畅;保持室内空气流通,应每天开窗换气两次,每次至少10分钟,或使用抽气扇保持空气流通;尽量少去 空气不流通的场所。
2 keep the room clean, use disinfectant cleaning carpets, avoid the use of hard to clean the carpet, keep the floor, ceiling, furniture and walls clean, to ensure smooth drainage channel; maintains the indoor air circulation, ventilation windows should be at least two times a day, 10 minutes each time, or use a fan to keep air circulation; as little as possible to airless places.
3.注意饮食卫生,进食禽肉、蛋类要彻底煮熟,加工、保存食物时要注意生、熟分开;养成良好的卫生习惯,搞好厨房卫生,不生食禽肉和内脏。解剖活(死家禽、家畜及其制品后要彻底洗手。
3, pay attention to food hygiene, eating meat, eggs should be thoroughly cooked, processing, preservation of food to the attention of raw, cooked separately; develop good health habits, good kitchen hygiene, do not eat raw poultry meat and offal. Anatomy of living (dead to wash hands thoroughly, livestock and poultry products.
同时,在户外洗手不方便的时候,可以使用免洗洗手液,随身携带,随时随地隔离病菌,呵护您的健康。
At the same time, when the outdoor hand-washing is not convenient, can use hand sanitizer, carry whenever and wherever possible, isolate the pathogen, take care of your health.
4.发现疫情时,应尽量避免与禽类接触;公众特别是儿童应避免密切接触家禽和野禽。
4 found in the epidemic, should avoid contact with poultry; the public especially children should avoid close contact with poultry and wild birds.
5.注意生活用具的消毒处理。禽流感病毒不耐热,100°C下一分钟即可灭活。对干燥、紫外线照射、汞、氯等常用消毒药都很敏感。
5 pay attention to disinfection and living appliances. Avian influenza viruses do not heat, 100 ° C, one minute can be inact
© 2022 xuexicn.net,All Rights Reserved.