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范文：

　　The environment is usually changed to benefit human life.

　　環(huán)境通常是為了人類生活的利益而改變。

　　Cars and roads make transportation fast and easy, factories make products that make our lives more comfortable, public services in cities like water treatment, electricity, and waste disposal make our lives more convenient.

　　汽車和道路使交通運(yùn)輸快捷方便，工廠生產(chǎn)的產(chǎn)品使我們的生活更舒適，在城市的公共服務(wù)，如水處理，電力，和廢物處理，使我們的生活更方便。

　　All of these advances, however, come with a significant environmental cost.

　　所有這些進(jìn)展，但是，有一個(gè)顯著的環(huán)境成本。

　　Human activity does significant damage to the Earth.

　　人類活動(dòng)對地球造成重大損害。

　　One of the main effects of human activity on an area is water pollution.

　　人類活動(dòng)對一個(gè)地區(qū)的主要影響之一是水污染。

　　Dumping waste materials from human activity into rivers and streams is popular because the waste seems to disappear downstream.

　　從人類活動(dòng)到河流和小溪的傾倒廢物的材料是流行的，因?yàn)閺U物似乎消失了下游。

　　The main sources of water pollution are factory waste, oil and gas runoff from highways, and untreated human waste.

　　水污染的主要來源是工廠的廢水、公路的石油和天然氣，以及未經(jīng)處理的人類廢物。

　　When this waste is dumped into rivers, the water downstream becomes undrinkable and unusable for agriculture, and also kills plant and animal life in the rivers.

　　當(dāng)這些廢物排入河流，下游的水就不能喝，不能用于農(nóng)業(yè)，并殺死植物和動(dòng)物生命的河流。

　　Clean air and water is a prerequisite not only for human life but also for all life on the planet.

　　清潔空氣和水是人類生活的前提，也是地球上所有生命的先決條件。

　　But the air is now being polluted by modern transportation, notably gas-powered automobiles, as well as electrical generators that burn fossil fuels and pour polluting chemical waste into the air.

　　但是，現(xiàn)在的空氣污染正受到現(xiàn)代交通運(yùn)輸業(yè)的污染，尤其是天然氣汽車，以及燃燒礦物燃料的發(fā)電機(jī)，把污染的化學(xué)廢物傾倒在空氣中。

　　This makes the air much less healthy to breathe.

　　這使得空氣更不健康的呼吸。

　　The airborne pollution also falls back to the earth in the form of acid rain, which destroys plant life and human buildings.

　　空氣污染的污染也以酸雨的形式返回到地球，這破壞了植物的生命和人類的建筑。

　　Another serious long-term effect of air pollution is global warming.

　　空氣污染的另一個(gè)嚴(yán)重的長期影響是全球變暖。

　　For the past several decades scientists have noted a disturbing rise in the average temperature of the earth caused by the rise of greenhouse gases, air pollutants created by burning fossil fuels, in the atmosphere.

　　在過去的幾十年里，科學(xué)家們已經(jīng)注意到地球的平均溫度上升了一個(gè)令人不安的上升，溫室氣體的增加，燃燒礦物燃料產(chǎn)生的空氣污染物，在大氣中。

　　Scientists believe that if humans continue to increase the amount of greenhouse gases in the atmosphere, the temperature of the earth will continue to rise.

　　科學(xué)家認(rèn)為，如果人類繼續(xù)增加大氣中溫室氣體的量，地球的溫度將繼續(xù)上升。

　　Eventually, this could melt the polar ice caps and cause devastating coastal flooding all over the world.

　　最終，這會(huì)融化極地冰蓋和世界各地的沿海洪災(zāi)造成毀滅性的。

　　Major cities like Hong Kong, Shanghai, and Dalian might be totally destroyed.

　　像港、上海、大連這樣的大城市，可能會(huì)被徹底摧毀。

　　Therefore, I believe human activity has caused serious problems while it has improved the world in which we live.

　　因此，我相信人類活動(dòng)在改善我們生活的世界的同時(shí)，也帶來了嚴(yán)重的問題。

　　It is time to realize this hazard and take action to prevent further disaster while making progress.

　　是時(shí)候認(rèn)識到這一危險(xiǎn)，并采取行動(dòng)，以防止進(jìn)一步的災(zāi)難，同時(shí)取得進(jìn)展。

以上就是今天為大家分享的專四寫作預(yù)測啦。希望各位小伙伴認(rèn)真?zhèn)淇迹缛胀ㄟ^考試！