雅思小作文-线图.ppt

Thegeneraltrendwasthatthepercentageofbothradioandtelevisionaudiencesrosefirstandthendecrease,whilethetotalnumberofthelatterwasbiggerthantheformer.Inaddition,theprimetimeforradioandtelevisionwas8amand8pm,respectively.总结趋势(相似与不同)0102三线图Thegraphbelowshowstheproportionofthepopulationaged65andoverbetween1940and2040inthreedifferentcountries.01剑5P2902三线图写法方法1分段描述，以不同时间为段方法2找相似的2条图为一组描述，其余的单独描述方法3分别描述三条图P1ThegraphshowstheincreaseintheageingpopulationinJapan,SwedenandtheUSA.Itindicatesthatthepercentageofelderlypeopleinallthreecountriesisexpectedtoincreasetoalmost25%oftherespectivepopulationsbytheyear2040P2In1940theproportionofpeopleaged65ormorestoodatonly5%inJapan,approximately7%inSwedenand9%intheUS.However,whilethefiguresfortheWesterncountriesgrewtoabout15%inaround1990,thefigureforJapandippedtoonly2.5%formuchofthisperiod,beforerisingtoalmost5%againatthepresenttime.Inspiteofsomefluctuationintheexpectedpercentages,theproportionofolderpeoplewillprobablycontinuetoincreaseinthenexttwodecadesinthethreecountries.Amoredramaticriseispredictedbetween2030and2040inJapan,bywhichtimeitisthoughtthattheproportionofelderlypeoplewillbesimilarinthethreecountriesThelinegraphshowstheproportionofpeopleinJapan,Sweden,andtheUSAaged65andmorefrom1940andtheexpectedproportionto2040SwedenUSAFrom1940to1990,theproportionsofpeopleaged65+intheUSAandSwedenweresimilarandfollowedthesametrend.In1940thefigureswere9%and7%respectively,risingto15%and14%respectivelyin1980,beforedippingto14%and13%respectivelyin1990.Thereafter,Americansproportionleveledoutandisforecastedtoremainat14%until2020,afterwhichitisexpectedto23%in2040.010302However,Swedensproportionofpeople