开始先写,environmentalproblemhasalreadybeencommonrecognized,aspeople.
然后你就转折,写however,ifindetail,citizensrarelyknowwhyisenvirenmentprotectionsoimportantandhowtoprotectenvironment.
于是你开始给环境分类:personally,environmentcouldbegroupedasx,x,andx.
然后你对每个环境分类进行展开,叙述重要性,还有你认为可行的保护方法.
结尾就写asthepollutiongettingsevere,environmentalprotectioncouldnotonlybewritteningovenmentdocumentbutalsobeimplementedandthesubconciousnessofwhichwithincitizensshouldbebuiltupforpossitiveprotectioninsteadofpassive.