| The world's forests are disappearing. As much as 1/3 of the total tree cover has been lost since agriculture began some 10,000 years ago. The remaining forests are home to half of the world's species, thus becoming the chief resource for their survival. Tropical rain forests once covered 12% of the land of the planet, as well as supporting at least half of the world's species of plants and animals. These rain forests are home to millions of people. But there are other demands on them. For example, much has been cut for timber. An increasing amount of forest land has been used for industrial purposes or for agricultural development such as crop-growing. By the 1990s, less than half of the earth's original rain forests remained, and they continued to disappear at an alarming rate every year. As a result, the world's forests are now facing gradual extinction. | |
| 世界的森林正在消失。自从农业在大约10000年以前开始之日起，整个森林已经锐减了三分之一。剩下的森林是地球上半数物种的家园。森林是他们生存的主要资源。热带雨林曾经覆盖了地球12%的陆地，同时供养了至少半数的动植物。这些雨林是数以百万人类的家园。但是人们对它们有些其他的需求。例如。它们的大多数被砍作木材。被工业和农业征用的数量与日俱增。截止90年代，现存的雨林还不足半数，并且它们继续以惊人的速度在消失。导致世界的森林正面临逐渐消失的境地。 |
| The world' s forests are disappearing. As much as 1 3 of the total tree cover has been lost since agriculture began some 10, 000 years ago. The remaining forests are home to half of the world' s species, thus becoming the chief resource for their survival. Tropical rain forests once covered 12 of the land of the planet, as well as supporting at least half of the world' s species of plants and animals. These rain forests are home to millions of people. But there are other demands on them. For example, much has been cut for timber. An increasing amount of forest land has been used for industrial purposes or for agricultural development such as cropgrowing. By the 1990s, less than half of the earth' s original rain forests remained, and they continued to disappear at an alarming rate every year. As a result, the world' s forests are now facing gradual extinction. | |
| shi jie de sen lin zheng zai xiao shi. zi cong nong ye zai da yue 10000 nian yi qian kai shi zhi ri qi, zheng ge sen lin yi jing rui jian le san fen zhi yi. sheng xia de sen lin shi di qiu shang ban shu wu zhong de jia yuan. sen lin shi ta men sheng cun de zhu yao zi yuan. re dai yu lin ceng jing fu gai le di qiu 12 de lu di, tong shi gong yang le zhi shao ban shu de dong zhi wu. zhei xie yu lin shi shu yi bai wan ren lei de jia yuan. dan shi ren men dui ta men you xie qi ta de xu qiu. li ru. ta men de da duo shu bei kan zuo mu cai. bei gong ye he nong ye zheng yong de shu liang yu ri ju zeng. jie zhi 90 nian dai, xian cun de yu lin hai bu zu ban shu, bing qie ta men ji xu yi jing ren de su du zai xiao shi. dao zhi shi jie de sen lin zheng mian lin zhu jian xiao shi de jing di. |
| The world' s forests are disappearing. As much as 1 3 of the total tree cover has been lost since agriculture began some 10, 000 years ago. The remaining forests are home to half of the world' s species, thus becoming the chief resource for their survival. Tropical rain forests once covered 12 of the land of the planet, as well as supporting at least half of the world' s species of plants and animals. These rain forests are home to millions of people. But there are other demands on them. For example, much has been cut for timber. An increasing amount of forest land has been used for industrial purposes or for agricultural development such as cropgrowing. By the 1990s, less than half of the earth' s original rain forests remained, and they continued to disappear at an alarming rate every year. As a result, the world' s forests are now facing gradual extinction. | |
| shì jiè de sēn lín zhèng zài xiāo shī. zì cóng nóng yè zài dà yuē 10000 nián yǐ qián kāi shǐ zhī rì qǐ, zhěng gè sēn lín yǐ jīng ruì jiǎn le sān fēn zhī yī. shèng xià de sēn lín shì dì qiú shàng bàn shù wù zhǒng de jiā yuán. sēn lín shì tā men shēng cún de zhǔ yào zī yuán. rè dài yǔ lín céng jīng fù gài le dì qiú 12 de lù dì, tóng shí gōng yǎng le zhì shǎo bàn shù de dòng zhí wù. zhèi xiē yǔ lín shì shù yǐ bǎi wàn rén lèi de jiā yuán. dàn shì rén men duì tā men yǒu xiē qí tā de xū qiú. lì rú. tā men de dà duō shù bèi kǎn zuò mù cái. bèi gōng yè hé nóng yè zhēng yòng de shù liàng yǔ rì jù zēng. jié zhǐ 90 nián dài, xiàn cún de yǔ lín hái bù zú bàn shù, bìng qiě tā men jì xù yǐ jīng rén de sù dù zài xiāo shī. dǎo zhì shì jiè de sēn lín zhèng miàn lín zhú jiàn xiāo shī de jìng dì. |
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