最全雅思流程图汇总

.一·Thediagramsbelowshowthestagesandequipmentusedinthecement-makingprocess,andhowcementisusedtoproduceconcreteforbuildingpurposes.·Summarisetheinformationbyselectingandreportingthemainfeatures,andmakecomparsonswherereleant.·Thefirstdiagramindicatesthestagesandequipmentintheprocessofmakingcement,andthesecondoneillustrateshowcementandothermaterialsaremixedtoproduceconcreteforbuildingpurposes.·Cementproductioninvolvesthefollowingsteps.Thefirststepistoputlimestoneandclayontwodifferentconveyors.Then,thesetwotypesofmaterialsarepressedintothecrusherwhichbreaksthemintopowder. Afterthat,thepowderispouredintoamixer,andthenmixturesaretransmittedintoarotatingheaterwhichworkswithheat.Thefollowingstepisthatabandcarrierleadstheheatedpowdertoagrinderwherethecementcomesout.Finally,cementispackedintobags,andtheprocessisfinished.·Concreteproductionismuchmoresimple.Fourdifferentkindsofmaterialsareneededindifferentproportion.Gravelaccountsforthelargestpart,at50%,followedbysand,whichis25%.Cementandwatercontributes15%and10%respectively.Thefourmaterialsarethenmixedandpouredintoaconcretemixerandafteraperiodofwhirling,concreteisproduced.·Inconclusion,makingcementhasmorecomplexprocessthanmakingconcretethoughconcreteneedsmorematerialsthancement.二·Thediagramsbelowshowthelifecycleofthesilkwormandthestagesintheproductionofsilkcloth.·Summarisetheinformationbyselectingandreportingthemainfeatures,andmakecomparisonswhererelevant.·Thefirstdiagramshowsthattherearefourmainstagesinthelifeofthesilkworm.Firstofall,eggsareproducedbythemothandittakestendaysforeacheggtobecomeasilkwormlarvathatfeedsonmulberryleaves.Thisstagelastsforuptosixweeksuntilthelarvaproducesacocoonofsilkthreadarounditself.Afteraperiodofaboutthreeweeks,theadultmothseventuallyemergefromthesecocoonsandthelifecyclebeginsagain.·Thecocoonsaretherawmaterialusedfortheproductionofsilkcloth.Onceselected,theyareboiledinwaterandthethreadscanbeseparatedintheunwindingstage.Eachthreadisbetween300and900metreslong,whichmeanstheycanbetwistedtogether,dyedandthenusedtoproduceclothintheweavingstage.·Overall,thediagramsshowthatthecocoonstageofthesilkwormcanbeusedtoproducesilkcloththroughaverysimpleprocess.三·Theflowchartbelowshowshowchewinggumismade. ·Summarisetheinformationbyselectingandreportingthemainfeaturesandmakecomparisonswhererelevant.·Thediagramshowshowchewinggumisproduced.Firstlytheingredientsofgumareputintoacontainerandwasheateduntiltheyformasinglemass.Thisisthenstraineduntilalloftheliquidhasbeeneliminated.Next,thegumispassedintoanothercontainer/placeandthedesiredflavorings,sweetenersandsoftenersareaddedThismixtureisblendeduntilalloftheingredientsaremixedtogether.Thegumthentravels/passestoadifferentmachinewhichusesrollerstoflattenoutthegum.Finallythethinsheetsofgumarecutintorectangularshapesandbrokenintoseparatepiecesthenthegumpasses/travelsalongaconveyorbeltwhereitisenclosedinpackagingreadyfordistribution.四·Thediagrambelowshowshowfruitiscanned. ·Summarisetheinformationbyselectingandreportingthemainfeaturesandmakecomparisonswhererelevant.·Thediagramshowstheprocessofcanningfreshfruit.Firstthefruitispickedfromtreesbyhand.Itisthentransportedtothecannerybylargetrucks.Atthecannerythefruitiswashedandqualitychecked,andanypoorqualityfruitisrejected.Thegoodqualityfruitisputintocoldstorage.Whenitisreadyforcanningthefruitisweighedandgraded.Thegradingensuresthatfruitofasimilarsizeiskepttogether.Afterthisthefruitispeeledandthecoresareremoved.Itisthenslicedintotherequiredsizesandputintocans.Juiceorsyrupisalsoaddedtothecans.Oncethecanshavebeenfilled,theyaresealedandcookedoverheattoensurethatthecansaresterilized.Whenthecansarecool,labelsareattachedandtheyareplacedintostorages.Thecannedfruitisnowreadytobedespatchedtosupermarketsandsold.五·Thediagrambelowshowstheprocessofmakingchocolate. ·Summarisetheinformationbyselectingandreportingthemainfeaturesandmakecomparisonswhererelevant.·Chocolate'svariedflavours,colours,shapesandtexturesresultfromdifferentrecipetraditions.Whichhaveevolvedindifferentpartsoftheworld.Theessentialingredientinallchocolateiscocoa,whichismadefromthecream-colouredbeansthatgrowinpodsonthecacaotree.Thecacaotree,whichgrowsinequatorialregionssuchasSouthAmerica,AfricaandIndonesiaproducesafruitaboutthesizeofasmallpineapple,Insidewhicharethetree'sseeds. ·Afterharvesting,thecocoabeansarcremovedfromthepodsandpiledinheapsthatareleftforseveraldaystodry.Thedriedbeansarethentransportedtofactorieswheretheyaresortedandroasted.Theshellsarethenremovedandthebeansaregroundintochocolateliquor-athickbrownliquidwhichformsasolidataboutroomtemperature.Thisliquorcontainsahighpercentageoffat(cocoabutter),whichisremovedbyusingpresses.Thesolidblockofcocoathatremainsisthenmadeintoapowderwhichcanbeusedtomakeahotchocolatedrink,orismixedbackwithsomeofthecocoabutter,sugarandotherflavoursuchasvanillatomakethedifferentkindsofchocolate.六·Thediagrambelowshowstheprocessbywhichbricksaremanufacturedforthebuildingindustry.·Summarisetheinformationbyselectingandreportingthemainfeatures,andmakecomparisonswhererelevant.·Theprocessbywhichbricksaremanufacturedforthebuildingindustrycanbeoutlinedinsevenconsecutivesteps. ·Firsttherawmaterial,clay,whichliesjustbelowthesurfaceofsoilincertainclay-richareashastobedugupbyadigger. ·Thenthelumpsofclayareplacedonametalgrid,inordertobreakupthebigchunksofclayintomuchsmallerones,whichfallthroughthemetalgridontoaroller,whosemotionfurthersegregatesthebitsofclay.Sandandwaterareaddedtomakeahomogenousmixture,whichistheneitherformedinmouldsorcutintobrick-shapedpiecesbymeansofawirecutter. ·Thesefreshbricksarethenkeptinadryingovenforatleast24andamaximumof48hours,severaldozensifnothundredsofbricksatatime.Thedriedbricksarethentransferredtoaalso-calledkiln,anothertypeofhightemperatureof200℃-980℃,thenatahightemperatureof870℃-1300℃.Thisprocessisfollowedbycoolingdownthefinishedbricksfor48to72hoursinacoolingchamber. ·Oncethebrickshavebeencooleddownandhavebecomehard,theygetpackagedanddeliveredtotheirfinaldestination,beitabuildingsiteorstorage. 七·Thediagramsbelowshowtheprocessofhowuraniumisusedintheproductionofnuclearpower. ·Summarisetheinformationbyselectingandreportingthemainfeaturesandmakecomparisonswhererelevant.·Thisdiagramdescribeshowuraniumismined,processed,usedandthendiscarded. ·Uraniumisfoundunderthegroundandsoitmustbemined.Oncethemineduraniumhasbeenextracted,itistakentoaprocessingcentre.Heretheuraniumisconvertedintoaformthatcanbeusedasafuelinanuclearpowerstation.Todothis,theuraniumischangedintoagasandenrichedbeforeitisreformedasU-235fuelpellets. ·Thefuelpelletsarethenusedinnuclearpowerstationstoprovideupto7billionkilowattsofelectricityfromjustonestation.Afterthefuelhasbeenusedforaboutfouryearsitisremovedfromthepowerstationandstored.Someoftheusedfuelcanbere-processedandre-usedinapowerstationtoproducemoreelectricity. ·Finally,oldstoredfuelthatcannotbere-processedisputintostainlesssteelcontainersandthenburieddeepintheground. 八·Theillustrationsbelowshowhowchocolateisproduced.·Summarisetheinformationbyselectingandreportingthemainfeatures.·Thediagramshowsthestagesintheprocessofmakingchocolate. ·Chocolatecomesfromthecacaotree,whichisgrowninpartsofSouthAmerica,AfricaandIndonesia.Thetreeproduceslargeredpodswhichcontainwhitecocoabeans. Firstly,whenthepodsareripe,theyareharvested.Thebeansareremovedandtheyarefermentedforseveraldaysinlargewoodenboxes.Duringthefermentingprocess,thebeansturnbrown.·Next,thebrownbeansarespreadinthesuntodry.Theyarethenputinlargesacksandtransportedbytrainorlorry.Afterthis,thebeansaretakentoachocolatefactorywheretheyareroastedinanovenattemperaturesofbetween250and350degreeCelsius.·Afterbeingroasted,thebeansarecrushedandtheoutershellisremoved.Finally,theinnerpartofthebeanispressedandliquidchocolateisproduced.九·Thediagrambelowshowshowbananachipsaremade.·Summarisetheinformationbyselectingandreportingthemainfeaturesandmakecomparisonswhererelevant.·Theflowchartshowshowbananachipsaremade.First,thebananasarepeeledbyaspecialmachineandthentheyarerinsedinwater.Nextthecleanbananasareputintoachippingmachinewheretheyareslicedintothinchips.Afterthistheyaredistributed.Oncetheyaredry,thebananachipsaresoakedinhotoilinlargedeepfatfryers.Thecookedbananachipsarefriedfromthefryersusingaspecialsievewhichallowsalloftheoiltodrainoff.Thebananachipsareleft(then)tocool.Whentheyhavereachedtherighttemperature,spicesareaddedforextrataste.Finallythebananachipsarepackagedreadytoberemovedaroundtheworldandwassold.十·Usingtheinformationinthediagram,writeadescriptionofhowarefrigeratorworks.Youmayuseyourownknowledgeandexperienceinadditiontothediagram.·Thediagramshowsinfourstageshowarefrigeratorworks.·Accordingtothediagram,inthefirststage,high-pressureliquidflowsinthecapillarytube.Foodwithintherefrigeratorsendsoutvapor.Inthisstage,thehigh-pressureliquidisheatedbythevaportowarmlow-pressuregas.Next,thewarmlow-pressuregasflowsahead,arrivingatthecompressor.Atthisstage,itiscompressedtohothigh-pressuregas.Stagethreeoftheprocessiswhenthehothigh-pressuregaspassesthecondenser,whereitiscooledtohigh-pressureliquid.Whereistheheatthen?Itistransferredtoatmosphere.Finally,thecoolhigh-pressureliquidcontinuestoflowforwardandentersintothecapillarytube.Atthispoint,itisheatedbythevaporfromfoodwithintherefrigeratoragainandanewcyclebegins.·Thus,theprocessdiagramillustratestheprincipleoftherefrigerator.十一·Asaclassassignmentyouhavebeenaskedtowriteadescriptionofhowthisplasticispro​ducedandthenbrokendown.·Usingtheinformationinthediagram,writeadescriptionofthecycle.·Youmayuseyourownknowledgeandexperienceinadditiontothediagram.·Thediagramshowsinfourstageshowplasticisproducedandthenbrokendown.·Accordingtothediagram,inthefirststage,areharvestedandtakentoafactory.Next,inthefactory,glucoseisextractedfromcerealcrops.Stagethreeoftheprocessiswhentheglucosethenpassesintoabacterialfermentationchamber,wheretheprocessoffermentationproducesatypeofplasticcalledPHBpolymer.Thiscanbeusedtomakeplasticbottlestoholdsham​poosanddetergents.Whentheseplasticbottlesarethrownaway，theymaybedisposedinthreeways.First,theymayberecycled.Anotherwayisthattheymayalsobefilledinland.Inthisway,theoxidationproductsfromthelandfillsitesarereleasedslowlyintotheatmosphere.Otherdiscardedbottlesareburntorbiodegradedandsendoutcarbondioxideintoatmosphere.Finally,cerealcropsrequirecarbondioxideinordertogrow,andthesecropsareusedinthemanufactureofthenewplastic.·Thus,theprocessdiagramillustratesthecycleoftheplastic.十二·ThediagrambelowshowshowTheAustralianBureauofMeteorologycollectsup-to-the-minuteinformationontheweatherinordertoproducereliableforecasts.·Writeareportforauniversitylecturerdescribingtheinformationshownbelow.·ThediagramshowsinfourstageshowtheAustralianBureauofMeteorologygetsitsweatherinformationinordertomakeweatherforecasts.·Accordingtothediagram,inthefirststagethereisthe“incominginformation”.Rawdataiscollectedfromouterspace,onland,oratsea,usingsatellite,radar,anddriftingbuoyrespec​tively.Next,thisdataisanalyzedandforecastedbyexperts.Atthisstageexpertsstudysatel​litephotos,radarscreens,andsynopticchartstodetermineweatherconditions.Stagethreeoftheprocessiswhentheinformationispreparedforbroadcast.Thisisdonethroughcomputerwhichsendsallnecessarydatatothefourthstage.Atthispointtheweatherdataisbroadcast​edtothegeneralpublicviaTV,radioandtelephone(recordedannouncement).·Thus,theprocessdiagramillustrateshowweatherdataiscollected,studied,prepared,andfinallybroadcast.单纯的课本容，并不能满足学生的需要，通过补充，达到容的完善教育之通病是教用脑的人不用手，不教用手的人用脑，所以一无所能。教育革命的对策是手脑联盟，结果是手与脑的力量都可以大到不可思议。.