大學英語綜合教程(2)（簡體書）

1.Our planet is in trouble！Almost every day we seem to hear of yet another problem affecting the environment-and what a list of problems！-pollution, acid rain, climate change, the destruction of rainforests and other wild habitats, the decline and extinction ofthousands of species of animals and plants...,and so on.
2.Nowadays, most of us know that these threats exist and that humans have caused them.Many of us are very worried about the future of our planet and unless we can find a way
of solving the problems we have made then the environment will suffer even more.
3.We humans create such a lot of rubbish！ Between 1992 and 2008 household waste increased by 16% and we now produce just under half a tonne per person each year.Most of
this is taken away by dustmen and buried in enormous landfill sites or burned in incinerators-both of these actions can be dangerous for the environment.Is all our rubbish reallyrubbish？ If you think about it,much of what we throw away could be used again.It makes sense to reuse and recycle our rubbish instead of just trying to solve the problem of where to put it！ Encouragingly rates of recycling have increased so that we recycle 35% of our household rubbish, although we could recycle up to 80%.Much of our waste is made up of glass, metal, plastic and paper.Our natural resources such as trees, oil, coal and alumimum are used up in enormous amounts to make these products and the resources will one day becompletely used up.We must cut down on energy use.
4.The air,water and soil of habitats all over the world have been,and are still being polluted in many different ways.This pollution affects the health of living things.Air is damaged by car and lorry fumes, and power stations create acid rain which destroys entire forests and lakes.When fossil fuels i.e.oil, gas and coal are burned to provide energy forlighting, cooking,etc.they form polluting gases。