英语翻译A rainforest is an area covered by tall trees with the total high rainfall spreading quite equally through the year and the temperature rarely dipping below l6℃．Rainforests have a great effect on the world environment because they can

英语翻译A rainforest is an area covered by tall trees with the total high rainfall spreading quite equally through the year and the temperature rarely dipping below l6℃．Rainforests have a great effect on the world environment because they can
英语翻译
A rainforest is an area covered by tall trees with the total high rainfall spreading quite equally through the year and the temperature rarely dipping below l6℃．Rainforests have a great effect on the world environment because they can take in heat from the sun and adjust the climate．Without the forest cover,these areas would reflect more heat into the atmosphere,warming the rest of the world.Losing the rainforests may also influence wind and rainfall patterns,potentially causing certain natural disasters all over the world．
In the past hundred years,humans have begun destroying rainforests in search of three major resources(资源)：land for crops,wood for paper and other products,land for raising farm animals．This action affects the environment as a whole．For example,a lot of carbon dioxide (二氧化碳)in the air comes from burning the rainforests．People obviously have a need for the resources we gain from cutting trees but we will suffer much more than we will benefit.
There are two main reasons for this．Firstly,when people cut down trees,generally they can only use the land for a year or two．Secondly,cutting large sections of rainforests may provide a good supply of wood right now,but in the long run it actually reduces the world’s wood supply．
Rainforests are often called the world’s drug store．More than 25％ of the medicines we use today come from plants in rainforests．However,fewer than l％of rainforest plants have been examined for their medical value．It is extremely likely that our best chance to cure diseases lies somewhere in the world’s shrinking rainforests．

英语翻译A rainforest is an area covered by tall trees with the total high rainfall spreading quite equally through the year and the temperature rarely dipping below l6℃．Rainforests have a great effect on the world environment because they can
雨林是一个周围有高树的降雨量很大的,年平均气温很少在16度以下的地区.雨林对世界环境有很大影响因为它可以降低太阳带来的温度,调节气候.没有雨林的覆盖,这些地区在大气中将会吸收到更多热量,使剩余的世界温度升高.流失雨林也会对风和降雨造成影响,潜在的导致全球的自然灾害.
在过去的100年里,人类开始破坏雨林,为了寻找三种主要资源：陆地上的谷物,造纸用的树木和其他产品,养动物的农场.这些行动对环境的整体都有影响.比如说,空气中大量的co2是从对雨林的燃烧中产生的.人们明显的对我们种植的植物油需求,但那时之后我们遭受的将要比获得的益处多.
造成这种情况主要有两个原因,首先,当人们砍树的时候,他们只能用一两年.第二,现在开来,大面积砍伐雨林可以得到一批高质量的木材,但从长远看,着实际上能够减少世界的木材供应.
雨林总是被叫做地球的药店,我们今天用的超过百分之25的药材来自雨林里的植物.然而,少于百分之1的雨林植物被检测到它们的药用价值,看起来好象是我们最大治愈疾病的机会在世界上的雨林之中了