如何保護(hù)熱帶雨林英語(yǔ)作文-文庫(kù)吧資料
2025-04-05 12:54本頁(yè)面
【正文】 countries are usually also too weak to stop large panies and powerful individuals from destroying the rainforests. They have no money, so when the poor whom they cannot feed find work cutting down trees or burning forestland, the governments often have no choice but to turn a blind eye. Moreover, for many of these countries, the valuable timber and other resources found in the rainforests are also a very important source of foreign exchange, which they badly need to pay off their foreign debts and purchase foreign equipment and other goods. 面對(duì)這一切事實(shí)，這些國(guó)家還在繼續(xù)毀滅他們的熱帶雨林，這令人覺(jué)得他們簡(jiǎn)直太麻木不仁了。 Plant species are not the only forms of life threatened with extinction in the rainforest. Rare birds and animals that cannot be found anywhere else in the world have been disappearing at the rate of one a year since the turn of the century. 各種植物在熱帶雨林中并不是受到滅種威脅的的生物。美國(guó)國(guó)家癌癥研究院已經(jīng)證實(shí)了有2000種熱帶雨林中的植物對(duì)預(yù)防和治療癌癥有奇效?！ he rainforest is essential in other areas also. It is a medicine chest of unlimited potential. The US National Cancer Institute has identified 2,000 rainforest plants which could be beneficial in fighting cancer. In today’s pharmaceutical market, 15 of the 125 drugs derived from plants were discovered in the rainforest. 從其他方面來(lái)看，熱帶雨林對(duì)人類也是必不可缺的?！ ccording to many scientists, the burning of rainforests is also directly contributing to the socalled greenhouse effect. This effect, they say, is raising average temperatures and sea levels as the polar ice caps recede. 根據(jù)許多科學(xué)家報(bào)告，燒毀了熱帶雨林也直接導(dǎo)致了所謂的溫室效應(yīng)。(5)地區(qū)性的氣候改變，甚至完全可能導(dǎo)致全球性氣候的改變。(3)水災(zāi)和旱災(zāi)大規(guī)模增加了。我們將會(huì)看到(1)各種生態(tài)系統(tǒng)的平衡均遭到大規(guī)模的破
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