下面為大家整理的是一篇關(guān)于水污染的SAT寫作例子。這篇例子的主要內(nèi)容是記述了一些有識(shí)之士自發(fā)保護(hù)美國河流免受污染的故事。下面我們一起來看看這篇SAT寫作例子的詳細(xì)內(nèi)容吧。

　　Insightful Men Voluntarily Protect American Rivers From Pollution

　　James Holland calls himself the eyes and ears of the Altamaha River. The 220 kilometer river he watches is relatively undisturbed by channels, dredging or major reservoirs. Its swamps and refuges are home to dozens of rare or endangered plants and animals including some found nowhere else on earth.
　　James Holland has spent a lifetime on the river as a crab fisherman, but blames the decline of fisheries, and the failure of his business, on poor water quality. Now as an advocate for the Altamaha, the 60 year old retired crabber responds to reports of erosion, loss of wetlands, and the illegal dumping of pollutants from agriculture and industry. "I view it as my job to end pollution where I see it, when I see it, said James Holland"
　　James Holland finds garbage stashed in tree trunks and pools of diesel fuel and abandoned trucks at logging operations near the river. A recent complaint on hog waste from a processing plant in the watershed led him to take a closer look. "In doing so I found the County making preparations for paving a road," he said. "They were widening it and making improvements. And, in doing so they destroyed wetlands. They didn't have enough erosion control to prevent erosion. I went further on from the spray field and from the area where I could view the spray field, the guy up there was draining wetlands. I found a ditch where he was draining wetlands. I also found right there standing in one spot where he destroyed two wetlands in the last two or three years. It's just a whole hot of things. It's unreal is what it is."
　　While James Holland leads the fight for the Altamaha, he isn't alone. Altamaha Riverkeeper Executive Director Deborah Sheppard says the group has inspired an increasing number of citizen volunteers. "And I know we're making a difference because every day people communicate with us about problems that would not have been addressed if they hadn't talked to us," said Deborah Sheppard. "And that's probably one of the best things that the River keeper movement has done around the country is begin the process of helping people understand that if we have a law in place to protect the environment, we all have a responsibility to help it be enforced."
　　Riverkeeper James Holland agrees. He sees the Altamaha differently from his days as a crab fisherman. He says he doesn't think anymore what he can take from the river, but what he can give back.

　　水污染的原因

　　人類生產(chǎn)活動(dòng)造成的水體污染中，工業(yè)引起的水體污染最嚴(yán)重。如：工業(yè)廢水，它含污染物多，成分復(fù)雜，不僅在水中不易凈化，而且處理也比較困難。
　　工業(yè)廢水，是工業(yè)污染引起水體污染的最重要的原因。它占工業(yè)排出的污染物的大部分。工業(yè)廢水所含的污染物因工廠種類不同而千差萬別，即使是同類工廠，生產(chǎn)過程不同，其所含污染物的質(zhì)和量也不一樣。工業(yè)除了排出的廢水直接注入水體引起污染外，固體廢物和廢氣也會(huì)污染水體。。。。。。
　　農(nóng)業(yè)污染首先是由于耕作或開荒使土地表面疏松，在土壤和地形還未穩(wěn)定時(shí)降雨，大量泥沙流入水中，增加水中的懸浮物。
　　還有一個(gè)重要原因是近年來農(nóng)藥、化肥的使用量日益增多，而使用的農(nóng)藥和化肥只有少量附著或被吸收，其余絕大部分殘留在土壤和漂浮在大氣中，通過降雨，經(jīng)過地表徑流的沖刷進(jìn)入地表水和滲入地表水形成污染。
　　城市污染源是因城市人口集中，城市生活污水、垃圾和廢氣引起水體污染造成的。城市污染源對(duì)水體的污染主要是生活污水，它是人們?nèi)粘Ｉ钪挟a(chǎn)生的各種污水的混合液，其中包括廚房、洗滌房、浴室和廁所排出的污水。
　　世界上僅城市地區(qū)一年排出的工業(yè)和生活廢水就多達(dá)500立方公里，而每一滴污水將污染數(shù)倍乃至數(shù)十倍的水體。
　　措施與建議
　　1. 強(qiáng)化對(duì)飲用水源取水口的保護(hù)：
　　有關(guān)部門要?jiǎng)澏ㄋ磪^(qū)，在區(qū)內(nèi)設(shè)置告示牌并加強(qiáng)取水口的綠化工作。定期組織人員進(jìn)行檢查。從根本杜絕污染，達(dá)到標(biāo)本兼治的目的。
　　2. 加大城市污水和工業(yè)廢水的治理力度：
　　加快城市污水處理廠的建設(shè)對(duì)于改善我市水環(huán)境狀況有著十分重要的作用。目前隨著城市人口的增加和居民生活水平的提高，我市的廢水排放量正在不斷地增加，而城市污水處理廠卻沒有相應(yīng)地增加，這必然會(huì)導(dǎo)致水環(huán)境質(zhì)量的下降。因此建設(shè)更多的污水處理廠是迫在眉睫的事。
　　3. 加強(qiáng)公民的環(huán)保意識(shí)：
　　改善環(huán)境不僅要對(duì)其進(jìn)行治理，更重要的是通過各方面的宣傳來增強(qiáng)居民的環(huán)保意識(shí)。居民的環(huán)保意識(shí)增強(qiáng)了。破壞環(huán)境的行為就自然減少了。
　　4. 實(shí)現(xiàn)廢水資源化利用：
　　隨著經(jīng)濟(jì)的發(fā)展，工業(yè)的廢水排放量還要增加，如果只重視末端治理，很難達(dá)到改善目前水污染狀況目的，所以我們要實(shí)現(xiàn)廢水資源化利用。
　　5.家用水的凈化：
　　過濾——沉淀(明礬)——用活性炭除異味，去顏色——消毒(氯氣，漂白粉)。在自來水管傳遞過程中有可能出現(xiàn)二次污染，所以飲用時(shí)要煮沸殺菌，而且還要用干凈的杯子。
　　另：有條件的家庭可以安裝家用健康飲水機(jī)
　　6.強(qiáng)化青少年保護(hù)水資源意識(shí)：
　　對(duì)于青少年，普遍的家庭并不太注重保護(hù)水資源的教育。教育要從小做起，養(yǎng)成保護(hù)水資源的意識(shí)，畢竟“教育要從娃娃抓起”。加強(qiáng)對(duì)青少年保護(hù)水資源的教育，拍宣傳片、做宣傳活動(dòng)，讓中國未來的每一朵花都有節(jié)約的好品德、保護(hù)水資源。以后，大量污染水資源問題就會(huì)漸漸減小。
　　7.少量創(chuàng)建填埋場：
　　可少量創(chuàng)建填埋場，讓廢水廢氣都能夠經(jīng)過處理，再排放至河流。由于填埋場占地面積大，浪費(fèi)土地資源，所以應(yīng)少量創(chuàng)建。
　　以上就是關(guān)于SAT寫作例子中水污染方面的相關(guān)信息，包括了英語和漢語兩個(gè)部分，英語的是故事，漢語介紹了一些相關(guān)的背景知識(shí)。大家可以在練習(xí)SAT寫作題目中相關(guān)話題的時(shí)候，對(duì)此加以適當(dāng)?shù)膽?yīng)用。