【文档说明】Unit4__Topic2__SectionC__精品课件九年级上册英语【仁爱版】.ppt，共(22)页，2.732 MB，由小喜鸽上传

转载请保留链接：https://www.ichengzhen.cn/view-104640.html

以下为本文档部分文字说明：

Unit4AmazingScienceTopic2I’mexcitedaboutthethingsthatwillbediscoveredinthefuture.SectionCWhatareyougoingtobewhenyougrowup？Why?Doyouknowanythin

gaboutMars?solarsystemMarsisthefourthplanetfromthesuninoursolarsystemandisnamedafterMars,theRomangodofwar.MarstheRomangod

ofwar被命名太阳系罗马战神n.风暴，暴(风)雨Itismuchsmallerthantheearth.Itsdiameteris53%oftheearth’s.直径Duringspringandsu

mmer,thestrongstormscancoverthewholesurfaceofMars.Thegravityonitssurfaceisabout40%asstrongasitisonearth.引力，重力1aReadandunderstand.Lookatthepic

turesandpredictwhichstatementsaretrueaboutMars.Thenreadthepassagequicklyandchecktheanswers._____1.Marslookslikearedball._____2.Thetemper

atureonMarsisveryhigh._____3.Marsismuchlargerthantheearth._____4.Marsistoofarawayforustoreach.TFFFListento1aandanswerthequestions.(1)Wha

tdoesMarslooklike?•Itlookslikearedandorangeball.(2)HowfarisMarsfromthesun?•It’sabout228millionkilometer

sawayfromthesun.(3)What’sthetemperatureonMars?•Itisbetween-138℃and28℃.1aReadandunderstand.动画1a1.Itsdiam

eteris53%aswideasthatoftheearth.它的直径是地球直径的53%。2.ThegravityonthesurfaceofMarsisabouttwo-fifthsasstrongasitisonearth.火星表面的引力大约是地球引力的五分之二。倍数(分

数)+as+adj.+as……的几倍3.Marsgoesaroundthesunatadistanceofabout228millionkilometers.火星在距太阳约228000000千米处环绕着太阳转。atadistanceof…有……距离4.Scientistsarestills

earchingformoreinformationaboutMars.科学家们正在对火星进行更多的探索。•searchfor:表示没有“被搜索的对象”只有“寻找的目标”。如：•Allnighttheysearchedforthelostboy.•search…for…表示搜查某一对象的目

的是要找到什么,强调有具体的目标。如：•ShesearchedmanyshopsforJim’sgift.•search意为“在……搜查”或“搜身”,是个及物动词，后面直接跟“被搜查的对象”。如：•Mr.Smithse

archedeveryroominthehouse.1bRead1aagainandwritedowntheinformationaboutMars.DiameterColorShapeClimateGravityDista

ncefromthesun53%aswideasthatoftheearthredandorangeaballduringspringandsummer:strongstormstemperature:between-138℃and28℃abouttwo-fi

fthsasstrongasitisonearthabout228millionkilometersKeywords•Mars,fourth,benamedafter,diameter,aswideas,atadistanceof,tell,b

ecause,brightred,ball,storms,gravity,temperature,oxygen,eightmonths,closestto,searchingforRetell1a•Mars,the_______planetofthesol

arsystem,goesaroundthesunata_________ofabout228millionkilometers.Its_______is53%aswideasthatoftheearth.Itlookslikea_____and_______ball.It’s

verybeautiful.Butduring______and_______,strong__________cancoverthewhole__________ofMars.Thegravityonthesurfaceofitisabout________as_______

_asitisonearth.fourthdistanceredorangespringsummerstormssurfacetwo-fifthsstrongdiameter1cDiscussthecrazyqu

estionswithyourpartnerandstateyourreasons.1.DoesMarshaveagoodclimateforplants?2.IsMarsausefulplacetodryfruit?3.IsMar

sagoodplaceforhumanbeingstolive?4.IsMarsacomfortableplaceforheavypeople?Read2andanswerthequestions.•(1)Whoisthise-mailfromandto?•It

isfromUncleStephentoKangkang.•(2)Howlongdidittakethemtogetthere?•Morethantwoyears.•(3)Dideverythinggowellduringthejourney?•No

,itdidn’t.HiKangkang,Ithasbeentwodays_________(since,from)welandedonMars.It_________(cost,took)usmorethantwoyearsto_________(reach,ge

t)here.Generally,thejourneywentwell,butthelivingconditionswere_______(quiet,quite)badduringthejourney.W

ehadtoproducemostofthefoodinthespaceship.______________(What’smore,What’sworse),ourwatersupplieswereverylow.Weh

adtolimittheuseofwaterduring_________(those,these)days.Sowehadashowereverysixweeks.Wewillspendanothersevenhundredandsixty-three

daysonMars.__________(How,What)alongtime!Ioftenmissthefamily,buttheexcitementofbeingonMarsisworthit!Wishmeluck!Yours,UncleStephensincetookgetquite

What’sworsethoseWhat2Kangkang’sunclesentane-mailtohimfromMars.Choosetherightwordstocompletetheletter.•clo

thing•foodanddrinks•weather•transportation•…3aWritebackane-mailtoUncleStephenforKangkangandaskhimformorein

formationaboutMars.Thelistmayhelpyou.3bWorkinpairs.Checkyourpartner’se-mailanduseyourknowledgeofMarstoanswerth

equestionsforUncleStephen.DearUncle,I’mverygladtoreceiveyoure-mail,andIknowthatthelivingconditionswerequitebadduringyourjour

ney.IaminterestedintheinformationaboutMars.Canyoutellmemoreaboutit?HowabouttheweatheronMars?Isitverycol

d?Whatkindoftransportationdoyouusethere?Iamlookingforwardtoyoure-mail!Goodluck!Yours,KangkangYoucanwriteitliketh

is:SummaryWelearn:1.Somewords:storm,weigh,journey2.Somephrases:nameafter,as…as,atadistanceof,searchfor3.Somesentences:(1)Itsdiameteris53%a

swideasthatoftheearth.(2)IthasbeentwodayssincewelandedonMars.Wecan:1.TalkaboutsomethingmoreaboutMars.2.Writebackane-mail.•Read1a.•Memorizetheusef

ulexpressionsandkeysentenceswhichwelearnedtoday.•FinishSectionCinyourworkbook.•ReviewSectionsA-C.