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1、雅思写作小作文范文【篇一：雅思a类小作文范文赏析】thechartbelowgivesinformationaboutglobalsalesofgamessoftware,cdsanddvdorvideo.writeareportforauniversitylecturerdescribingtheinformation.??youshouldwriteatleast150words.youshouldspendabout20minutesonthistask.modelanswer:thechartshowsthechangesinthesalesofvideomaterial
2、/dvds,gamessoftwareandcdsaroundtheworldinbillionsofdollarsoverathree-yearperiod.itcanbeseenthatthesalesofvideos/dvdsandgamessoftwarehaveincreased,whilethesalesofcdshavegonedownslightly.between2000and2003,thesaleofvideosanddvdsrosebyapproximately13billiondollars.in2000,justunder20billiondollar
3、sworthoftheseitemsweresold,butin2003,thisfigurehadrisentoalittleover30billiondollars.thesalesofgamessoftwarealsoroseduringthisperiod,butlesssharply.salesincreasedfromabout13billiondollarsin2000tojustunder20billiondollarsthreeyearslater.bycontrast,duringthesametimeperiod,thesaleofcdsfellfrom35
4、billiondollarsin2000toabout32.5billiondollarsin2003.eatingsweetfoodsproducesacidinthemouth,whichcancausetoothdecay.(highacidlevelsaremeasuredbylowphvalues)describetheinformationbelowanddiscusstheimplicationsfordentalhealth.??youshouldwriteatleast150words.allowyourself20minutesforthistask.mode
5、lanswer:whenthephlevelinthemouthiskeptabove5.5,acidityissuchthatteethareunlikelytobeindangerofdecay.sweetfoods,however,causephinthemouthtodropforatime,andthelongerphlevelsremainbelow5.5,thegreatertheopportunityfordecaytooccur.bycomparingfruitsugar,canesugarandhoney,whichareallcommoningredient
6、sofsweetfoods,wefindthatcanesugarlowersphlevelsforthelongestperiod,thusproducingthegreatestriskofthethree.approximatelyfiveminutesaftfterconsumingcanesugar,phlevelsdroptoaslittleasph3.5.theythenbegintoriseslowly,butdonotriseaboveph5.5untilatleast30minuteshaveelapsed.bycontrast,fruitsugar,whic
7、hcausesthemouthsaciditytofalltojustaboveph4,posesadangerforashorterperiod:toothdecayisunlikely20minutesafterconsumption.honeyappearsanevenlessriskysubstance.thoughacidityfallstoaboutph4.75withinfiveminutesofconsumption,itreturnstoaboveph5.5in
