高英(一)第四次作文

1 0901 班班 俸翠红俸翠红 We Must Protect Our Ecological System We live in the world relying on the unique ecological system which is the most important for us In nature we call the environment except for objects but including the social environment Human beings are the product of the environment because we constantly transform the human environment to seek our own survival and development Certainly the ecological system is the basic condition for human survival which is depended on the balance of available ecological system With the development of people s living standards the ecological protection problem is more and more attended by the human being As to the circulation of ecological system we exist in the social environment Every new technology promotes the great development of the economy which we break the normal principles to seek for the momentary interests in the advancement But people also feel the economic development and the supply of natural sources being difficult to meet the community s demand In the situation the ecological confluence will be significant for men and men human and environment When all the people don t care about the bad result they will encounter the dilemma and lead to the 2 vicious circle Once the ecological system is damaged in the environment it will require several times even the efforts of several generations to recover even never recover However because of previous stupid behavior factually human being has made an enormous effect on the environment and causes the disasters such as storm black storm avalanche earth rock flow debris flow flooding earthquake volcano tsunami plague and so on In 1987 the U S Air Protection Research Center survey showed that endangered the United Stated directly and affected by acid rain for more than 30 million residents As a result the annual direct cost for U S 15 billion dollars European acid rain damaged to forests by more than 50 The forests were destroyed the remnants of the world in 2000 will drop to the existing species the total number of 1 5 1 4 which is a non recoverable ecocide In this century the acid rain pollution is really involved the many areas including China acid rain has become increasingly serious It was reported worldwide each year about 420 billion cubic meters of sewage discharged into rivers and lakes polluting the 5 5 trillion cubic meters of fresh water which is equivalent to the world 3 for more than 14 of the total runoff As to serious air pollution it is directly threatening the health of the people Domestic and international research shows that cancer has a certain relationship with environmental factors especially air pollution Urban residents are death for the city cancer that morality rate was 129 9 10 million which is the terrible number increasingly in recent years Estimates accounting for 80 of the world s current energy consumption fossil fuels coal oil natural gas is equivalent to a final volume of 3 373 trillion tons of recoverable coal and the world energy consumption is an annual 5 growth is expected only enough to use a human two hundred years Because of severe ecological destruction such as deforestation and burning of grasslands it results in a sharp decline in natural green area When the flood struck the land can not conserve water leading to flash floods often accompanied by debris flows causing great loss of life and property After the bare rocks nature can not be normal ecological cycle When it is hot there will be severe drought and lack of forest and grassland protection and then water supply shortage Finally a large number of insects will be in order to survive bringing about disaster going against humanity farmland Therefore mankind could come across the incalculable the loss on 4 production and life Then mankind will take extreme measures such as spraying pesticides chemical fertilizers etc However to improve production they just caused the death of ecological animals and plants and even the extinction of a species and the broken circulation of the natural law of development As we all know the ecological system can not benefit for humans property Eventually humans will stick back and forth in a vicious cycle at the end of resources Now urban life causes massive population expansion so the environment problems are caused by a lot of pressure unreasonable development and utilization of natural resources such as uncontrolled mining a large number of drilling for oil land reclamation from the sea etc In fact it also leads to a lot of geological disasters such as earthquakes frequent volcanic eruptions hurricanes tsunamis storms avalanches and so on This in turn makes a lot of plants and animals lose their homes in addition that the human spirit will never be able to erase the scars As the industrial revolution advances we are reaping the fruits of development at the same time we may have thought that caused many disasters of burning of fossil fuels and emitting large quantities of harmful gases and greenhouse gases such as sulfur oxides nitrogen oxides Then air quality is getting worse dust can 5 be seen outside in time but the formation of acid rain and methane cause worse serious harm In particular the acid rain can corrode nature things and cause people to travel inconvenience The carbon dioxide will combine with ozone in the atmosphere so that the ultraviolet radiation spotlights the earth from the formation of the ozone layer hole in space frequently burning human skin on withstanding of lack of humans In addition excessively using of human Freon refrigerants and air conditioners which are the reasons for the formation of the ozone hole In contrast some countries and regions of departments have stressed on the importance of environmental issues and ecosystem protection which they would benefit much from Singapore is famous as the Garden City in the world In this country citizens and foreigners would be punished severely if they damage the environment They are popular with the slogan Every household plants the trees in front of their houses if someone destroyed a tree they would be fined a year salary The citizens should become a good example of working for social welfare and be encouraged to community service each week This is because the people of Singapore for their limitless efforts they win a nice reputation in the world Therefore an endless stream of tourists to Singapore every year they always protect the ecologic and care for the environment 6 as an important highlight of the Singapore revenue All in all due to the uneven development between regions and conflicts of interests between nations people s minds are