重大book5教案unit3

重庆大学版高一(5)Unit3Period1livingPlanetTreattheearthwell.Itwasnotgiventoyoubyyourparentsbutlenttoyoubyyourchildren.GettingReadyGroupWork1.Whatdoyouknowaboutthesun,themoon,andtheearth?Fromtheboxbelow,choosethewordsyouoftenusewhentalkingabouteachofthemandwritethewordsinthechart.brightlandcoldrockplanetshininghugesatelliteroundfireballhotsandiceflatwaterThesunThemoonTheearth2.LookatthepictureofEarthandtrytocompletetheshortparagraphwithproperwords.WhatdoesEarthlooklike?ThisphotoshowswhatEarthlookslikefromaspaceship.Ifyouwereonthespaceship,you’dseeahuge____and_____ball.Thebluepartsarethe______thatareonearthandthewhitepartsare_____.Thecloudsarepartof_______atmosphere.Earthisnotperfectly_________.Thepartswecall“top”and“bottom”arealittle__________.Wecallthetoppartthe______Poleandthebottompartthe_____Pole.Earthisjusttherightdistancefromthesun.It’snottoo____ortoo_____.That’swhypeopleandotherthingscanliveon_____.Earthistheonlyplanetweknowofthathas____.ReadingTask1.Rearrangethefollowingphrasesbasedonthetext.Thefirstonehasbeendoneforyou.1)Comparisonbetweenthelandandtheearth2)Thebiosphere3)Thesizeandtheshapeoftheearth4)Theformationoftheearth5)Theatmosphereoftheearth6)Waterontheearth’ssurface7)ComparisonbetweenthehighestmountainandtheearthThecorrectorderis376152Choosethebestanswertocompleteeachofthefollowingsentences.1).Manyscientistsbelievetheearthwasformed_____________.A.thegasinspaceB.acloudinspace.C.avastcloudofdustandgasinouterspacedustandgasinspace2)Theearthisaballof___________.A.rockandwaterB.rockandironrockandsandD.sandandwater3)Itmaytakeyou__________toclimbMountEverest,whichisalittle________than5.5milesabovesealevel.A.months…lessB.months…moreC.weeks…moreD.weeks…lessDetailedreadingWrite“T”ifthestatementistrue,“F”ifitisfalse,or“N”ifitisnotmentionedinthetext.1)Thesunwasformedlongbeforetheearth.______2)Faroutinspace,youcanclearlyseetheflatteningandswellingoftheearth.3)AlthoughMountEverestisthetallestmountainontheearth,itcannotbeseenfromthespace.______4)ApartfromthehugecontinentofAsia,youcanseeAfricaandAmericainarocketnearthemoon.5)Watercanalsobefoundinotherplanets,butnotinliquidform.______6)Theearthissurroundedbytheatmospherewhichpeople,animals,andplantsneedtolive.Ⅲ.根据课文“OurEarth”完成短文Theearth，the1.____________planetfromthesun，madeupoftheshrinkingandclumpingtogetherofavastcloudof2.____________andgasin3.____________space，wasformedatleast4.____________billionyearsago.Seenfromspace，itlookslikeaperfect5.____________.Nearlythreequartersoftheearth’ssurfaceiscoveredwithwater，almostallofwhichmakesuptheoceanswhichplayaveryimportant6.____________inkeepingtheearth’s7.____________relativelystable.Onefourthoftheearth’ssurfaceis8.____________，aboutonefifthofwhichisalwayscoveredbyice.Theverythin9.____________ofair，soilandwaterformaverynarrowbandfromthebottomoftheseatothetopofthethickestpartoftheatmosphere，thebiosphere，withinwhichalllivingthing10.____________.答案：1.third2.dust3.outer4.five5.ball6.role7.temperature8.land9.coverings10.existPeriod2ExplanationⅠ.词语翻译1．atleast________________2．abovethelevelofthesea________________3．faraway________________4.becoveredwith/by...________________5．makeup________________6．playarolein...答案：1.至少2.海平面以上3.遥远；深远4.被……所覆盖5.形成、构成或组成某物6.在……方面起作用Ⅱ.句型必背1．Theflatteningandswellingaretoosmalltosee.(两极的)扁平和(赤道的)凸出都无法察觉。2．Thepartofthesoilinwhichcropsgrowisrarelymorethan20inchesdeep.能耕种庄稼的那部分土壤很少超过20英寸。3．ItmaytakeyouweekstoclimbMountEverest，whichisalittlemorethan5.5milesabovesealevel.你可能需要花费好几周的时间才能登上珠穆朗玛峰，它高出海平面5.5英里多。1.Theearth,theplanetonwhichweareliving,isthethirdplanetfromthesun.我们一直居住的星球，地球离太阳从内到外的第三颗行星。Thepartofthesoilinwhichcropsgrowisrarelymorethan20inchesdeep.农作物生长的那部分土壤都不到20英寸深。注意(1)Theearth后的theplanet…为同位语成分，解释说明theearth;同位语成分中含有一介词+关系词的定语从句，修饰先行词theplanet。(2)句2中同样含有介词+关系代词的定语从句，修饰先行词thepartofsoil。1.在介词+关系代词的结构中，关系代词指人时只能用whom;指物时用which.2.指物的先行词在定语从句中作定语时还可以用the+noun+ofwhich的结构来表示3.先行词在定语从句中作状语时根据不同类型的状语，用不同的介词+关系代词，时间状语使用on;in;by等表示时间的介词；地点状语用on;in;at等表示地点的介词；原因状语用for;方式状语用in;by;with等。ThetwothingofwhichtheyfeltveryproudwereJim’sgoldwatchandDella’shair.Aharvesterisamanwhoisharvestingoramachinewithwhichweharvestcrops.2.复杂介词+关系代词(which,whom,whose)常用复杂介词:asaresult,atthebackof,becauseof,infrontof,inthemiddleof,atthebottomof,onthetopof,atthefootof注意:但含有介词的短语动词一般不能拆开,如lookafter,bemadeof,takepartin,lookforwardto等。例：Thebabies(who/whom)thenurseslookafterlookstrongandhappy.1.Thefactoryproduceshalfamillionpairsofshoeseveryyear,80%___aresoldabroad.AofwhichBwhichofCofthemDofthat2.Hefellfromhishorse,asaresultof___hecouldnotgotowork.A.thatB.whichC.whoseD.whom2.Manyscientistsbelievethattheearth,aswellasthesunandtheotherplanetsinoursolarsystem,wasformedatleastfivebillionyearsago.许多科学家认为地球，以及太阳和太阳系中其他的行星，至少在五十亿年前形成。1)aswellas在此句中表示“除……之外”,相当于besides，inadditionto。2)aswellas常用来连接两个并列的成分，作“也，还”解。它强调的是前一项，后一项只是顺便提及。因此连接并列主语时，谓语动词与前一项一致；而用notonly...butalso...连接时，谓语动词与后一项一致。如：Yourwifeaswellasyouisfriendlytome.不仅你而且你的妻子也对我很友好。3.Thisisasmallrisewhencomparedwiththesizeofthewholeearth.当跟整个地球的大小比起来这个增长的幅度是很小的。1）When引导了时间状语从句，when后省略了i