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1、Linegraph:1.introduction2.summary3.details1（起点比较-描写趋势直到关键点）4.details2（关键点后的一般趋势-终点比较）summary1.总规律+最显著的曲线特征ItisclearthatthetotalamountofacidrainemissionsintheUKfellconsiderablybetween1990and2007.Themostdramaticdecreasewasseenintheelectricity,gasandwatersupplysector.2.杂乱曲线倍数或排序关系I
2、tisclearthatCanadaexportedmorewheatthanAustraliaandtheEuropeanCommunityformostoftheperiodshown.However,whileCanada'swheatexportsfluctuatedandAustralia'sfell,wheatexportsfromtheEuropeanCommunityrosesteadily.DetailsIn1990,around3.3milliontonnesofacidrainemissionscamefromtheelectri
3、city,gasandwatersector.Thetransportandcommunicationsectorwasresponsibleforabout0.7milliontonnesofemissions,whilethedomesticsectorproducedaround0.6milliontonnes.Justover2milliontonnesofacidraingasescamefromotherindustries.Emissionsfromelectricity,gasandwatersupplyfelldramatically
4、toonly0.5milliontonnesin2007,adropofalmost3milliontonnes.Whileacidraingasesfromthedomesticsectorandotherindustriesfellgradually,thetransportsectorsawasmallincreaseinemissions,reachingapeakof1milliontonnesin2005.Processdiagram:1.introduction2.summary3.details1（一般用被动）4.details2int
5、roductionThepictureillustratestheprocessofcoffeemanufactureandpreparationforsaleonthemarket.summary描述步骤,抓主要特征（introduction和overview很短可以合在一起写）1.Itisclearthatthereare___distinctstagesinthisprocess,beginningwith______.Thefinal__stepsshow________.2.Theflowchartshowshowwastepaperisre
6、cycled.Itisclearthattherearesixdistinctstagesinthisprocess,fromtheinitialcollectionofwastepapertotheeventualproductionofusablepaper.Details(first,then,atthesixthstage,next,afterthat,finally)Lookingatthecoffeeproductionprocessindetail,coffeebeansmustfirstbepickedinthefields.These
7、beansarethendried,roasted,andcooledbeforebeingputinagrindingmachine,whichturnsthebeansintocoffeegranules.Atthesixthstageintheprocess,thegroundcoffeeismixedwithhotwater,andtheresultingmixtureisstrained.Next,themixtureisfrozenandthenpassedonceagainthroughthegrinder.Afterthat,thegr
8、ound,frozenliquidisdriedinavacuumsothatthewater
