九年级英语写作Unit9Whenwasitinvented

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1、Unit9Whenwasitinvented?【佳篇欣赏】AWhatistheworstinventionintheworld?In2002,anEnglishmadeasurveyaboutwhattheworstinventionwasinyouropinion.Theresultwasplasticbag・PlasticbagswereinventedbyanAustrianscientistnamedMarxinthe1930s.Everyyear,peoplefromthewholeworlduseaboutfivethousandmill

2、ionplasticbags.Becausetheyareverycheap,manypeoplejustusethemforoneortwotimeandthenthrowaway.Ifthecowsorhorsesfindtheminthefieldandeatthem,itwillbedangerousfortheirhealth.Manyanimalsdiedbecauseofeatingplasticbags.Iftheyareburned,theywillgiveoutpoisonousgasthatisbadforpeople'shea

3、lthandpollutetheair.Somepeopleburythem,andthisisbadforthesoil,becauseplantscanhardlygrowhere.TheonlyadvantageofplasticbagsisthattheysometimesmakeI讦econvenient.Buttheyhavetoomanydisadvantages.Sothenametheworseinventionsuitsthemjustfine.BMynewinventionIwouldliketointroducemynewin

4、ventions.Ihaveinventedacarthatuseswaterinsteadofpetrol.Itusesanewkindofenginethatcanturnwaterintoenergy.Thenewengineisabitexpensive,andthecarswon'tbeabletodriveveryfast.Butitwillbeimproved・Itisanewwayofproducingenergy,sowewillhavetobuildnewcars.Itcan'tbeusedfornormalcars.Thisin

5、ventionisgreatfortheenvironment.Imaginehowniceandcleanourcitieswouldbeifwedidn'thavetheairpollutionfromcars.CAlfredNobelAlfredNobelwasagreatSwedishscientistandinventor.Hehadabigcompanythatmadeandsoldplosivesandcanevenmadeweapons.Surprisingly,hewasthemanwhosetupthePeacePrize.Tho

6、ughhemadealotofmoneyfromsellingweapon,hehatedthewar.Hehopedthattherewouldbenowarintheworld.Whenhediedin1876,heleftbehindhimalotofmoney.Accordingtohiswill,mostofhismoneywasplacedinhisfundtheNobelPrizes.Hewantedthewinnerstobechosenfromtheirworkinsteadofthecountrytheycomefrom.Alfr

7、edNobelhadgivenhiswholelifetohisstudiesandworktodosomethinggoodformankind.Hemademoneyallbyhisefforts,buthelefttheworldsharehiswealth.Hisinventionsandwealthstaywiththewholeworldforever.【原创习作点评】假如你是茶文化博物馆的讲解员。明天你要向一批外国游客用英语介绍有关茶的发明的历史。请你根据以下英语问题，结合本单元所学内容准备一篇80词左右的书面介绍。内容提示：1.Whe

8、nwasitinvented?2.Whowasitinventedby?3.Howwasitinvented