求一篇三分钟英语演讲稿,要简单易背的,说什么随便.说些例如怎样保护环境、关于吸烟的危害什么的,100悬赏送上,满意还可提高,我是土豪的说!

求一篇三分钟英语演讲稿,要简单易背的,说什么随便.说些例如怎样保护环境、关于吸烟的危害什么的,100悬赏送上,满意还可提高,我是土豪的说!
求一篇三分钟英语演讲稿,要简单易背的,说什么随便.
说些例如怎样保护环境、关于吸烟的危害什么的,100悬赏送上,满意还可提高,我是土豪的说!

求一篇三分钟英语演讲稿,要简单易背的,说什么随便.说些例如怎样保护环境、关于吸烟的危害什么的,100悬赏送上,满意还可提高,我是土豪的说!
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 of thousands of species of animals and plants.and so on.
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.
It all sounds so depressing - but we certainly mustn't despair!Every one of us,whatever age we are can do something to help slow down and reverse some of the damage.We cannot leave the problem-solving entirely to the experts - we all have a responsibility for our environment.We must learn to live in a sustainable way i.e.learn to use our natural resources which include air,freshwater,forests,wildlife,farmland and seas without damaging them.As populations expand and lifestyles change,we must keep the world in a good condition so that future generations will have the same natural resources that we have.
Here are just a few examples of the threats to our environment and some ideas to help you to do something about them.
Waste
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 really rubbish?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 aluminium are used up in enormous amounts to make these products and the resources will one day be completely used up.We must cut down on energy use.
Ideas to Help
* Sort out your rubbish.Organic matter e.g.potato peelings,left over food,tea leaves etc.can be transferred straight to a compost heap in the garden and used as a good,natural fertiliser for the plants.Aluminium cans,glass bottles and newspapers etc.are often collected from our doorsteps these days,but other items such as plastic bottles,juice cartons and cardboard may not be,in which case they can be taken to nearby recycling banks.Find out where they are by asking your local council or library.
* Use recycled paper to help save trees.Everyone in Britain uses about 6 trees worth of paper every year.
Chlorine bleach is usually used to make newspapers and this pollutes rivers.It's better to use unbleached,recycled paper whenever you can.
* Take your old clothes to charity shops.Some are sold,others are returned to textile mills for recycling.
* Try to avoid buying plastic.It's hard to recycle.One way to cut down on plastic is to refuse to use carrier bags offered by supermarkets and use strong,long lasting shopping bags instead,or re-use plastic bags over and over again,until they wear out and then recycle them.
* Don't buy over-packed goods.Many things we buy have unnecessary amounts of plastic and paper around them.
Rainforests
Rainforests are valuable habitats.About half of all the species of animals and plants in the world live in rainforests with a possible 50,000 species a year becoming extinct.Thousands of rainforest plants contain substances that can be used in medicines and the tribal people of the forests have great knowledge of them.Rainforests are also important because they provide us with oxygen and help to regulate the world's climate and atmosphere.
Yet despite their value,an area of rainforest the size of Britain is destroyed every year.One and a half acres are cleared every second,an area about the size of a football pitch.They are cut down to make way for 'civilised man' to provide timber,grow crops and graze cattle.Sometimes they're burnt down to make space to grow soya,an animal feed and to grow palm oil,a bio-fuel used as an alternative to petrol and diesel,as well as being used as an ingredient in many foods.
Ideas to Help
* Never buy products made up of tropical hardwoods e.g.mahogany and teak.It is better to buy only pine,oak,ash or beech because they can be replaced.
* Garden and flower shops sometimes sell rainforest orchids that have been imported,although endangered ones have been protected since 1973.If you buy an orchid,check that it has been grown in Britain.
* Some parrots and macaws are unfortunately still imported.If you want a parrot as a pet,make sure it has been hatched in Britain.
* Eating a beefburger may be helping to destroy the rainforest!Most burgers in Britain are made from European cattle.However,the cattle are often fed on soya beans and a lot of that comes from Brazil where large areas of forest have been destroyed to make soya fields.Before buying a burger,ask where the cattle came from and what they were fed on.Try a veggie burger for a change!
Pollution
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 for lighting,cooking etc.they form polluting gases.
Oils spills pollute sea water and kill marine life; chemical waste from factories and sewage works,and artificial fertilisers from farmland,pollute river water,killing wildlife and spreading disease.
The careless or deliberate dumping of litter in the environment is not only unsightly but dangerous for wildlife too.
Ideas to Help
* Don鈥檛 drop litter.
* Use less energy by switching off lights when rooms are not in use,not wasting hot water,not overheating rooms and not boiling more water than necessary when making a cup of tea!
* Use a bicycle or walk instead of using a car for short trips.
* If you spot pollution,such as oil on the beach,report it to the local council.If you suspect a stream is polluted,report it to the local Environmental Health Officer.
* If you use chlorine-based bleach or detergents containing phosphates you are contributing to water pollution.
Try to buy 'environmentally-friendly' products which don't contain these.
* Organic foods are produced without the use of artificial fertilizers and pesticides,preventing these pollutants from contaminating habitats and entering the food chain.
Endangered Habitats and their Wildlife
Wild habitats all over the world are fast disappearing.Forests are being cut down,rivers and seas polluted,heathlands built on,hedgerows pulled up,ponds filled in - the destruction seems endless.As the habitats decrease,so do their communities of animals and plants.Habitat destruction is one of the main reasons why many species face extinction.Habitats are commonly split up and animals can't get from one part to another,unless wildlife 'corridors' are provided.Other reasons for their demise include the hunting of animals and collection of plants.Now they are facing a new threat,that of climate change.
A report by the International Union for Conservation of Nature鈥檚 (IUCN) shows nearly one third of amphibians,more than one in eight birds and nearly a quarter of mammals are threatened with extinction.869 species are already described as being extinct or extinct in the wild,i.e.disappeared from the earth forever.
Ideas to Help
* In many countries souvenirs made from rare wildlife are available - never buy shells,coral or things made from elephant ivory,rhino horn or cat skin etc.
* Try to reduce your 'carbon footprint'.
* Remember that British habitats and wildlife are under threat too.The destruction of wood land,pollution of rivers and ponds,the use of pesticides and herbicides have all contributed to the reduction in the amount of wildlife in Britain.Many animals and plants are endangered e.g.red squirrels,otters,barn owls,golden eagles,natterjack toads,many species of butterflies and dragonflies,orchids - to name just a few.If you have a garden at home,you could transform it into a mini nature reserve for wildlife.The same could be done in your school grounds.