關(guān)于地球的英語作文——earth

　　the area of desert in the world is growing every year. many parts of the world which once had large populations and produced plenty of crops, have become deserts. dunhuang in china, deep in the heart of the gebi desert, was once a great city.

　　cattle are one cause of the problem. in good years, famers increase the numbers of their cattle. then one year, the rains fail to come. the farmers do not want to kill any of their cattle, so the cattle eat ail the grass and anything that grows on poorer land. if this continues for several years, the grass never grows again and the land becomes a desert. one suggested answer is for farmers to limit the numbers of their cattle.

　　another problem is that good soil is gradually lost. when trees are cut down, there is nothing to hold the soil in place on the hillside. so when if rains, the soil is washed down the hills and into the rivers. strong winds can also blow away the valuable soil that lies on the top of the fields.

　　地球本是多方位，包羅萬象的，但作者從地球的沙漠化方面考慮，列舉了造成此情況的原因，暗示人類要注意這個嚴(yán)重的問題。

　　這是一篇很好的原因  結(jié)果式文章。先陳述結(jié)果，后列舉原因。

　　地球

　　世界上沙漠的面積每年都在擴大，許多地區(qū)曾經(jīng)人口眾多，五谷豐登，而今卻成了沙漠。中國的敦煌曾經(jīng)是一個大城市，而現(xiàn)在卻深深陷入戈壁灘的腹地。

　　造成戈壁灘的原因之一是牲畜問題。年景好時，農(nóng)民就增加牲畜飼養(yǎng)的頭數(shù)。后來有一年天沒有下雨，農(nóng)民又不想把牲畜殺掉。因此，牲畜就把草和更加貧瘠的土地上所長的任何東西全都吃光。這種情況如果繼續(xù)幾年，那么，草就再也長不出來了，土地也就變成了沙漠。有人提出的解決辦法是讓農(nóng)民限制飼養(yǎng)牲畜的數(shù)量。

　　另外一個問題就是沃土逐漸流失。樹木被砍伐了，山坡上就沒有什么東西能夠把土壤保持住了。因此，下雨的時候，土壤從山上被沖刷下來，流到河里去了。大風(fēng)也可能把田地表面的肥沃土壤刮走。

　　earth hour started in australia with millions of homes and businesses turning their lights off for one hour. now it has grown to become one of the world’s biggest climate change initiatives. people are all joining together in a global effort to show that it’s possible to take action on global warming.

　　earth hour has brought about some new changes to our lives. the iconic bird’s nest national stadium and the nearby water cube national aquatics center, usually illuminated by floodlights, went dark at 8:30 p.m., while dozens of hotels, office buildings, shopping malls and restaurants also switched some lights off. people join activities such as candle-lit dinners and star-gazing parties as a response to the call for going dark. however, some critics have dismissed the event as simply a gimmick that will not make any difference.

　　from my point of view, earth hour is a global call to action to every individual, every business and every community. a call to stand up, to take responsibility and to get involved in working towards a sustainable future. earth hour is a message of hope and a message of action. everyone can make a difference.

　　topic:

　　environmental problems are as big as not for individual country or individual people to address. in other word, we have reached the stage that environmental problems be solved for international view. to what extent do you agree or disagree?

　　in recent years, many nations have become more aware of the environmental issues each nation faces, such as air and water pollution. the question is, are the environmental issues a national problem or an international problem? it is my belief that the environmental issues have grown to the point of  becoming an international problem needing international cooperation to resolve.

　　because of the differences in environmental policies, resources and technology, international cooperation could provide quicker results and have a greater impact on bringing resolution to environmental problems for nations of differing environmental policies and of lesser resources and technology.  by pooling international resources and technology to address the environmental problems, the disadvantaged nations are provided the assistance needed. otherwise their environmental conditions deteriorate ultimately affecting the resources and environment of the world as a whole.

　　one of the difficulities to an international resolution to environmental issues is the difference in individual nations view and policies toward environmental protection. in order for international cooperation to occur and succeed, the nations of the world must submit themselved to international standards and supervision by an international commission elected by the participating nations of the world. all members must agree to abide by the standards established.

　　the environmental issues facing each country are not unrelated to the well being of the rest of the world. the impact is long term and international in scope. without international cooperation and agreement to address such environmental issues as glacial melting at the south pole, depletion of the ozone layer, water pollution, air polution, etc., the environmental conditions of the world will deteriorate to the detriment of every nation, not just those that ignore or lack the resources and technology to resolve their individual environmental problems.

　　as part of the same planet, it is the responsibility of each individual and nation to protect the global environment. only international cooperation will provide the timely solutions and the effectiveness needed to stop the deteriorating global environment.

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