1、老外寫(xiě)的小作文范文，比較直觀~~第一篇作文題目第一篇范文參考modelanswer:ThetwographsshowthatoilwasthemajenergysourceintheUSAinboth19801990thatcoalnaturalgashydroelectricpowerremainedinmuchthesameproptions.Ontheotherhtherewasadramaticriseinnuclearpowe

2、rwhichdoubleditspercentageoverthetenyears.Oilsuppliedthelargestpercentageofenergyalthoughthepercentagedecreasedfrom42%in1980to33%in1990.Coalin1990wasthesecondlargestsourceofenergyincreasingitsproptionto27%from22%inthepre

3、viousdecade.Naturalgasthesecondlargestsourcein1980at26%decreaseditsshareveryslightlytoprovide25%ofAmerica’senergytenyearslater.Therewasnochangeinthepercentagesuppliedbyhydroelectricpowerwhichremainedat5%ofthetotalenergyu

4、sed.Nuclearpowerthegreatestchange:in1990itwas10%twicethatofthe1980s.(152wds)第三篇（流程圖哦，必看必看）Youshouldspendabout20minutesonthistask.Theflowtillustratestheproductionofcolouredplasticpaperclipsinasmallfacty.Writeareptfauniver

5、sitytutdescribingtheproductionprocess.第三篇modelanswerTherearefourmainstagesintheproductionofplasticpaperclipsfromthissmallfacty.Twoofthesestagesinvolveactualpreparationoftheclipswhiletheothertwoconsistofqualitycontrolbefe

6、theclipsaresentoutfromthefactytotheretailerstobesoldtothepublic.Tobeginwithmoltenplasticispouredintothreedifferentmouldsdependingonthecolourrequiredthecoloursareredblueyellow.Oncetheseclipsemergefromthemouldsaqualitycont

7、rolmachinechecksthemfstrength.Unsatisfactyclipsarerejected.Inthethirdstageintheprocesstheclipsarestedbyhintotwogroupsmixedsinglecolours.Whenthisstageiscompletethegroupsarecheckedasecondtimetoensurethatthecolourmixturesar