雅思小作文范文-流程图

1.Theprocessofbrickmanufacturing.注意：1.介绍过程要使用一般现在时2.使用定语从句将有关联的两句话连接。3.大量使用被动语态。4.使用一些表示顺序的连接词。5.一般不需要写总结。Theflowchartillustratestheproductionprocessofbricksusuallyusedinbuildingindustry.Generally,sevenstagesareincluded,frommaterialexploitationtodelivery.Firstly,undergroundclayisdugupastherawmaterialbyalargedigger.Claylumpsarethenstackedonametalgridwhichservestobreakupchunksintomuchsmallerpieces.Afterfallingonaroller,thestuffisfurtherconveyedandmixedwithsandandwater.Infollowingstage,thewell-blendedcompoundispressedinamouldorcutbyawirecutter,inordertoformbrick-shapedpieces.Duringnext24-48hours,dozensofthesefreshbricksarekeptinaroom,namelydryingoven.Oncethebricksaredry,thenextstageisheatingandcoolingprocess.bricksaretransferredinaso-calledkiln,anothertypeofhotteroven,inwhichtheyareburnedtwice,moderatelyandhighly,intemperaturefrom200°C-980°Ctoabout870°C-1300°C.Thisisfollowedbydepositingheatedbricksinacoolingchamberfor2or3days.Finally,cooledhardbricksgetpackedanddeliveredbytruckstotheirdestination,abuildingsite.（194）2.Theproductionofsteamusingagascoolednuclearreactor.1.看懂基本过程和原理，定位流程的起点和终点。2.按照箭头依次进行描述，不能出现顺序颠倒，或是过程缺失。3.图中的文字提示应加入到描述之中。4.分段原则：流程图基本不分段，一个主体段包含所有过程，但请注意过程之间的连接词，eg,首先，然后，接下来，最后。Theprocessofhowagas-coolednuclearreactorworksconsistsofthereactoritselfandaheatexchanger.Thereactorcontainsuraniumfuelelementswhicharesurroundedbygraphitemoderatorsandtoppedbychargetubesforloadingfuelelements,andboroncontrolrods.Thewholereactoriscontainedinapressurevesselsurroundedbyaconcreteshield.Fromthereactorthehotgasflowsthroughaductintotheheatexchangerwhichisoutsidetheconcreteradiationshielding.Intheheatexchanger,steamisgeneratedinasecondaryloop.Thereapipebringsinwaterwhichisheatedtosteam,andthisthenflowsouttotheturbo-alternator.Meanwhilethehotgassinkstothebottomoftheheatexchangerandpassesthroughagasblowerwhichpushesitintoacoolgasductandbacktothereactor.Ascanbeseen,thisisacontinuouscyclethatkeepsthereactorfromoverheating,whilecarryingawaytheheatandsteam,whichwillpowertheturbines.（166）3.TheprocessofcollectingrainwaterandpurifyingittodrinkingwaterinAustralia.注意：1.需要看懂图形之间的顺序，并找到流程的起点和终点。2.所有图片及其图片信息都需要被描述，尽量不要忽略图形。3.在文字上，由于是进行客观描述，需要采用大量的被动句式和定语从句。4.为了突出顺序性，需要采用大量的连接词进行辅助说明，如Atfirst,Secondly,then,next,afterthat,finally等。5.大量使用被动句，这能体现客观性。6.积极地进行词汇的同义替换。7.灵活地使用定语从句来进行细节补充，如inwhich。TheflowchartaboveshowstheprocessofpurificationofrainfordrinkingwaterinAustralian.Overall,4mainstagesareinvolved:collection,filtration,storageandtreatment.Firstly,rainfallingontheroof,therawmaterialfordrinkingwater,flowsdownalongguttersandintodrains,whichthendirectthewaterintoundergroundfiltrationsystem.Next,watergoesthroughaphysicalfilterslowlywhichservestoremoveparticulatesfromrainwater.Afterpercolation,thewaterisdeliveredbythepipetoalargecube-shapedcontainerandbestoredcarefully.Forthepurposeofproducingdrinkablewater,thereisanotherstageforfurthertreatment.Specifically,thewateristransferredintoabiggertank,inwhichsomechemicalsareaddedandmixedwithstoredwater.Thischemicalreactionisabletofullyeliminateimpurities,thusenhancingthequalityofwateruptoasafeandpotablelevelforhuman.Finally,throughwaterpipe,thewell-treatedwaterispressedanddirectedtotheresidenthousefordailyuse.（164）4.Theinformationofhowathermosflaskworks.注意1.静态流程图的特点在于对于一个物体的细节描述，可采用顺序描述，eg.由内至外，由外至内，由上至下等。2.注意对于功能原理的阐述。eg，vaccum是一种不良导体，它会保持热量，而不是传导。3.注意物体形状和轮廓的描述。Thediagramindicatesthestructureandworkingprocessofathermosflask.Thethermosflaskisusedtokeeptheliquidsandremainthetemperature.Itsmostcommonuseistokeephotdrinks,forexamplecoffee,hotbutyoucanalsouseittokeepthingslikemilkcold.Athermosflaskisacylinder-shapedobjectbetween30and40cmhigh.Theinsideofthethermosflaskisaflaskmadeofglass.Thereisnearlynoairinsidethisglass,soitisaverypoorconductor.Inaddition,theglassissilvered,whichreducesinfraredradiation.Thisvacuumflaskissurroundedbyanothercylindermadeofmetalorplastic,whichprotectsthefragileglassinside.Thetopisaplugorcap,usuallymadeofcorkorplastic,whichiscoveredbyaplasticcup.Thisistakenoffandusedtodrinktheliquidfrom.Someheatescapesfromthecapbutthespecialdesignofthethermosflaskmeansthatliquidmaintainsitstemperatureforseveralhours.（173）5.Thediagramshowstheprocedureforuniversityentryforhighschoolgraduates.1.流程的描述需要按照箭头进行，且注意流程的起点和终点;2.需要细细理解文字的含义，以及文字和流程之间的关系，比如说：文字是该阶段的起因，先决条件，还是结果;3.需要学会处理流程的分叉状态：if......,then........Otherwise,itshould........;Theflowchartshowstheprocessofhowahighschoolgraduatecanenteruniversity.Overall,thereare3clearstages,includingtheapplication,verificationofadministrators,andregistrationitemsaboutuniversity.Firstly,onceahighschoolhasbeenobtained,astudentneedtocompleteanapplicationformbydownloadingitinrelevantwebsite.Thefilledformshouldthenbesenttotheadministration.Generally,aftertwo-weekconfirmation,thereare3possibleresultsfortheapplicant,whicharerejection,provisionalacceptance,oracceptance.Ifthereplyisarejection,itmeansthestudentisstillunqualifiedandhastoeithercanceltheapplicationorfinishanapplicationforanalternativecoursebeforeresendingittotheadministrationoffice.Intermsoft