Wecanhelpsolve/s?lv/theproblems.Weshouldkeepbeachescleanandusemoreenvironment-friendlyproducts.Itisalsoagoodideatotellpeoplehowtoprotecttheocean.Wecanalsoencouragethemtohelp.Mainbody:·Saywhytheecosystemisimportant.·Statetheproblemsitfacesandhowpeoplecanhelp.~~~~~~~~~~~~~~~~~~~~~~~~~~~~长难句分析：这是一个祈使句。以动词原形State开头，theproblems是宾语，itfaces是定语从句，修饰problems，由and连接的howpeoplecanhelp是宾语从句，与theproblems同作State的宾语。Itismeaningfultojoinanenvironmental/?nva?r?nmentl/groupandworkasavolunteer.Pleasejoinus.Togetherwecanhelpprotecttheocean.Yourssincerely,ZhaoMinConclusion:Encouragepeopletotakeaction.从教材语篇D2学写作技巧承上启下承上启下是指在文章中，通过特定的语句或段落，将上文的内容与下文的内容连接起来，使文章前后呼应，形成一个有机的整体。如作者通过“However,theoceanisfacingmanyproblems.”这一转折句实现承上启下，使文章从积极方面的描述平稳过渡到消极现状的呈现，增强了文章的连贯性，让读者能够顺畅地跟上作者的思路。TIPWeoftenendaproposalwithastrongandmovingsentencetoencouragethereadertotakeaction.D3Chooseanecosystemandwriteaproposalaskingpeopletoprotectit.MakeanoutlineliketheoneinPartD1.UseAmy‘sproposalasamodel.UsefulexpressionsDearSirorMadam,...Iamwriting(toyou)todaybecause...Iwanttoaskyouto......is/arehometo...Oneofthemainproblemsis...Anotherproblemis...Togetherwecan...1cover/k?v?(r)/n.躲避处；罩子(教材P101)(观察)·Grassprovidescoverforsmallanimals,likerabbits.草为小动物如兔子提供躲避处。·Thebookhasabeautifulcover.这本书有漂亮的封面。·Heboughtacoverforhisoldpot.他为他的旧锅买了一个盖子。·Don’tcoveryourfacewhenyouaresleeping.睡觉时不要把你的脸蒙上。·Hetriedtocoverhismistakes.他试图掩盖他的错误。探究一核心单词归纳拓展cover是个兼义词，主要意思有：(1)名词，躲避处，指提供掩护或保护的地方；(2)名词，封面、封皮，指书籍、杂志等的封面；(3)名词，罩子、套子，指容器的上盖等；(4)动词，遮盖；覆盖，指用某物覆盖或隐藏另一物体；(5)动词，掩盖；遮掩，表示隐藏或掩饰某种情况。becoveredwith被……覆盖学会运用1:Thefoxislookingfora_______inahurry.A.jacketB.quiltC.coverD.desk学会运用2:The_________(封面)ofthebookfeelsverycomfortable.学会运用3:He