保护环境专业英文ppt

1、what does our earthlook like?how is our livingenvironment?everybody knows waste paper and used cokecans are discarded everywhere you might haveseen plastic bags flying in the sky and gettingcaught in the trees when the wind blows or maybe)seen old cans floating in the rivers andthe water. our enviro

2、nment is the placewe live, but it is being ruined by us.air pollution is becoming a severe problem,which mainly caused by transport action and factories production. the air pollution changes the conditions that we depend on, such as the greenhouse effect and the acid rain. it causes many diseases,to

3、o.water pollution is the contamination of water bodies such as lakes, rivers, oceans，lagoons，and groundwater. all water pollution affects organisms and plants that live in these bodies of water and in almost all cases the effect is damaging either to in dividual species and populati ons but also to

4、the natural biological communities it occurs when pollutants are discharged directly or in directly into water bodies without adequate treatment to remove harmful constituents.1 the globle warming 禅increasing global temperature will cause sea levels to rise and will change theki amount and pattern o

5、f precipitation， in eluding an expa nse of the subtropical57a99 desert regions. other likely effects 密专 include increases in the intensity of extreme weather events，changes in agricultural yields, modifications of trade routes, glacier retreat, species exti nctions and in creases in the ran ges of d

6、isease vectorsurban development as we all know，trees are able to help clean the air. furthermore, we are killing animals while cutting down these trees as a result, many animal species are dying out. air pollution is getting worse5which can cause many diseases people still go on i cutting dow ntrees

7、.what does our earth look like?and what should we do?energy conservation use green shopping bags instead of plastics turn off the light before you get out raise the temperature of air-c on ditio ning ride a bicycle5or to take a buslinstead of a carhurn down the brightness and voice of your computerw

8、ater conservation recycling of water use a washbasin when you wash and brush discharge sewage after treatme nt plant more trees;protect the forests and all the animals use of renewable materials restrict the use of private carsimplement of sustainable economic developmentthe beautiful planet of ours