最新最全雅思流程图汇总教学文案.docx

最新最全雅思流程图汇总教学文案.docx

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最新最全雅思流程图汇总教学文案

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.Thecacaotr