水環(huán)境英文課件

Waterastheoriginoflifeisanecessaryconditionoflivingandeconomicdevelopment.Itisalsothemostimportantpartofhuman’sbody.

水是生命的源泉，是生命存在與經(jīng)濟(jì)發(fā)展的必要條件，同樣是構(gòu)成人體組織的重要部分。Chinaisacountrywhichisalwayslackofwaterresources.（中國是一個(gè)水資源短缺、水災(zāi)害頻繁的國家）Manyfactoriesstopproducingandtheagriculturalproductionisreducingevenwithatotalcrop.（工廠停產(chǎn)、農(nóng)業(yè)減產(chǎn)甚至絕收）Awfuleffectofsocietyandahugelostineconomy（不良的社會影響和較大的經(jīng)濟(jì)損失）Thedroughtinnorthernchina

中國北方旱災(zāi)ThefloodinsouthernTaiwan南臺灣50年來最嚴(yán)重水災(zāi)Acid,alkaliandoxidizingagentthecreaturesinwater(酸、堿、氧化劑等有機(jī)毒物)Whentheorganicsubstancesaredecomposedbymicroorganism,theoxygenwillbetakenaway,whichwillaffectthecreaturesinthewater.Thenwhenallthedissolvedoxygenistakenawayfromthewater,theorganicsubstancewillbegintodecomposetheozoneproducingsomegaswithterriblesmellingsothatthequalityofwaterbecomeworse.(污水中的有機(jī)物被微生物分解時(shí)消耗水中的氧，影響水生生物的生命，水中溶解氧(DO)耗盡后，有機(jī)物進(jìn)行厭氧分解，產(chǎn)生難聞氣體，使水質(zhì)進(jìn)一步惡化。)Humanactivities（人類活動）industrialpollution、agriculturalpollution、livingpollution（工業(yè)污染源、農(nóng)業(yè)污染源、生活污染源）Thewastewatercontainsmanytoxicelementsandithardtobedealwith.(量大、面積廣、成分復(fù)雜、毒性大、不易凈化、難處理)Howarewesupposedtodealwithwaterpollution?Firstly,intensifytheprotectionfortheintakeofwater.Secondly,improvethegovernanceofwaterpollutioninthecityandtheindustrialwastewater.Thirdly,reinforcethecitizens’awarenessofenvironmentalprotection.Forth,utilizethewastewater.Fifth,adoptdigitalizationgovernanceforthetreatmentofpollutedwater.Sixth,forbidtheindustrialwastewaterdischargedbfactory.那我們應(yīng)該采取什么樣的措施呢？1、強(qiáng)化對飲用水源取水