资源描述：
《【精品】雅思新版task1范文》由会员上传分享，免费在线阅读，更多相关内容在工程资料-天天文库。
1、Youshouldspendabout20minutesonthistask.ThetwographsshowthemainsourcesofenergyintheUSAinthe1980sandthe1990s.Writeareportforauniversitylecturerdescribingthechangeswhichoccurred・Writeatleast150words.5泌22%.42%198010%25%1990■oil■nsturalgas■coal■hydroelectri匚power■nuclearpowermode
2、lanswer:ThetwographsshowthatoilwasthemajorenergysourceintheUSAinboth1980and1990andthatcoal,naturalg$sandhydroelectricpowerremainedinmuchthesameproportions.Ontheotherhand,therewasadramaticriseinnuclearpower,whichdoubleditspercentageoverthetenyears.Oilsuppliedthelargestpercenta
3、geofenergy,althoughthepercentagedecreasedfrom42%in1980to33%in1990.Naturalgas,thesecondlargestsourcein1980at26%,decreasedits
4、shareveryslightlytoprovide25%ofAmerica'senergytenyearslater.Therewasnochangeinthepercentagesuppliedbyhydroelectricpowerwhichremainedat5%ofthetotalenergy
5、used.Nuclearpowerthegreatestchange:in1990itwas10%,twicethatofthe1980.Youshouldspendabout20minutesonthistask.Thegraphbelowshowsthedifferencesinwheatexportsoverthreedifferentareas・Writeareportforauniversitylecturerdescribingtheinformationshownbelow.Writeatleast150words.WheatExp
6、orts1985-1990(inmillionsoftonnes)3050198519861987198819891990MAustralia■SnadaAEuropeanCommunitymodelanswer:Thethreegraphsofwheatexportseachshowaquitedifferentpatternbetween1985and1990.ExportsfromAustraliadeclinedoverthefive・vearperiod,whiletheCanadianmarketfluctuatedconsidera
7、blyandtheEuropeanCommunityshowedanincrease・In1985,Australiaexportedabout15millionsoftonnesofwheatandthefollowingyearthenumberincreasedbyonemilliontonnesto16million.Afterthat,however,therewasagradualdeclineuntil1989and1990whenitstabilisedatabout11milliontonnes・Overthesameperio
8、d,theamountofCanadianexportsvariedgreatly.Itstartedat19milliontonnesin1985,reachedapeakin1988of24million,droppeddramaticallyin1989to14milliontonnesandthenclimbedbackto19millionin1990.SeventeenmilliontonneswereexportedfromtheEuropeanCommunityin1985,butthisdecreasedto14milliont
9、onnesin1986andthenroseto15millionin1987and1988beforeincreasingoncemo
