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雅思写作小作文范文

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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/dvds,gamessoftwareandcdsaroundtheworldinbillionsofdollarsoverathree-yearperiod.itcanbeseenthatthesalesofvideos/dvdsandgamessoftwarehaveincreased,whilethesalesofcdshavegonedownslightly.
betweenand,thesaleofvideosanddvdsrosebyapproximately13billiondollars.in,justunder20billiondollarsworthoftheseitemsweresold,butin,thisfigurehadrisentoalittleover30billiondollars.
thesalesofgamessoftwarealsoroseduringthisperiod,butlesssharply.salesincreasedfromabout13billiondollarsintojustunder20billiondollarsthreeyearslater.bycontrast,duringthesametimeperiod,thesaleofcdsfellfrom35billiondollarsintoabout32.5billiondollarsin.
eatingsweetfoodsproducesacidinthemouth,whichcancausetoothdecay.(highacidlevelsaremeasuredbylowphvalues)
describetheinformationbelowanddiscusstheimplicationsfordentalhealth.
??youshouldwriteatleast150words.
allowyourself20minutesforthistask.
modelanswer:
whenthephlevelinthemouthiskeptabove5.5,acidityissuchthatteethareunlikelytobeindangerofdecay.sweetfoods,however,causephinthemouthtodropforatime,andthelongerphlevelsremainbelow5.5,thegreaterthe
opportunityfordecaytooccur.
bycomparingfruitsugar,canesugarandhoney,whichareallcommoningredientsofsweetfoods,wefindthatcanesugarlowersphlevelsforthelongestperiod,thusproducingthegreatestriskofthethree.approximatelyfiveminutesaftfter
consumingcanesugar,phlevelsdroptoaslittleasph3.5.theythenbegintoriseslowly,butdonotriseaboveph5.5untilatleast30minuteshaveelapsed.bycontrast,fruitsugar,whichcausesthemouthsaciditytofalltojustaboveph4,posesadangerforashorterperiod:toothdecayisunlikely20minutesafterconsumption.honeyappearsanevenlessriskysubstance.thoughacidityfallstoaboutph4.75withinfiveminutesofconsumption,itreturnstoabo