仁爱九年级英语上课件

Unit4Topic3Idon’tthinkalienscanbefoundinspace.Unit4Topic31SectionCSectionC2Besidestheearth,doyouknowotherplanets?SolarsystemBesidestheearth,doyouknow3MarsTheRedPlanetWhatdoyouknowaboutMars?Whatdoesitlooklike?=Whatisitlike?(事物)MarsTheRedPlanetWhatdoyou4CompareMarswiththeearth:

size,color,gravity,temperature,theoxygenCompareMarswiththeearth:5WhatdoyouknowaboutMars?Whatdoesitlooklike?MarsisthefourthplanetfromthesuninoursolarsystemandisnamedafterMars,theRomangodofwar.Itsdiameteris53%aswideasthatoftheearth.Marsgoesaroundthesun

atadistanceofabout228millionkilometers.YoucantellwhichplanetisMarsbecauseitisbrightredinthenightsky.Itlookslikearedandorangeball.It’sverybeautiful.Butduringspringandsummer,strongstormscancoverthewholesurfaceofMars.WhatdoyouknowaboutMar6ThegravityonthesurfaceofMarsisabouttwo-fifthsasstrongasitisonearth.Soaperson(whoweighs90kilosonearth)weighsonly36kilosonMars.ThetemperatureonMarsisbetween-138°Cand28°C.Theairhasonly0.13%oxygen.

IttakesaspaceshipabouteightmonthstoreachMarsfromtheearthwhenthetwoplanetsareclosettoeachother.ScientistsarestillsearchingformoreinformationaboutMars.Thegravityonthesurfaceof71aReadandanswerthequestions:1.WhatisMarsnamedafter?It’snamedaftertheRomangodofwar.2.HowfarisMarsfromthesun?Atadistanceofabout228millionkilometers.3.Howmuchdoesapersonweighifheweighs150kilosonearth?60kilos.4.CanhumanbeingsliveonMars?No,because…1aReadandanswerthequestio81bworkaloneRead1aagainandwritedowntheinformationaboutMars.Diameter:___________________________________Color:______________________________________Shape:_____________________________________Climate:__________________________________________________________________________________________________________________________Gravity:____________________________________Distancefromthesun:________________________53%aswideasthatoftheearthbrightredinthenightskyaredandorangeballabouttwo-fifthsasstrongasitisonearthabout228millionkilometersDuringspringandsummer,strongstormscancoverthewholesurfaceofMars.ThetemperatureonMarsisbetween–138and28.1bworkalone53%aswideasth91.atadistanceof+数字:“相隔…远”at+价格：Theysellthericeat5yuanperkilo.at+速度Hedroveataspeedof90kilometersperhour.at+时刻：Iusuallygetupat6o’clock.另：inthedistance在远处,远远地Canyouseethemountaininthedistance.2.benamedafter以……命名；按……来命名西部的孩子经常根据他们的父亲来命名。Childreninthewestareusuallynamedaftertheirfathers.1.atadistanceof+数字:103.tell常和can,could,beableto连用,意为“辨别,区别,认出”tellAfromB:分辨出A和B我辨别不出她和她妹妹。Ican’ttellherfromhersister.tellthedifferencesbetweenAandB:辨别A和B的不同点我辨别不出这个词和那个词的区别。Ican’ttellthedifferencesbetweenthiswordandthatone.Whichoneistrue?Ican’ttell.我辨别不出。4.search(sb/sth/sw)forsth/sb搜寻他们正在搜寻那个房间，找那个丢了的钱包。Theyaresearchingtheroomforthelostpurse.3.tell常和can,could,beablet115.含倍数的同级比较:“…倍数(aquarter/half/twice/threetimes/分数等)+as+形容词或副词+as…”例:1.这把尺子是那把尺子的一半长。

2.他跑起来有她的两倍快.

例：这个房间比那个房间大三倍。含倍数的比较级:“…倍数(aquarter/half/twice/threetimes/分数等)+形容词或副词比较级+than

Thisrulerishalfaslongasthatone.Thisroomisthreetimesbiggerthanthatone.Thisroomisfourtimesasbigasthatone.Herunsoncefasterthanher.Herunstwiceasfastasher.5.含倍数的同级比较:“…倍数(aquarter/h121cPairworkDiscussthefollowingcrazyquestionswithyourpartnerandstateyourseasons.DoesMarshaveagoodclimateforplants?IsMarsausefulplacetodryfruit?IsMarsagoodplaceforhumanbeingstolive?IsMarsacomfortableplaceforheavypeople?1cPairwork132cworkaloneKangkang’sunclesentane-mailtohimfromMars,butsomewordsaremissing.Listeningtothetapeandcompleteit.Kangkang@Thejourneyhasgoneverywell.HiKangkang,

IthasbeentwodayssincewelandedonMars.Ittookusmorethan_________togethere.Generally,thejourneywentwell,buttheliving__________werequitebadduringthejourney.Wehadto___________mostofthefoodinthespaceship.twoyearsconditionsproduce2cworkalone14What’sworse,ourwatersupplieswerevery_____.Wehadtolimittheuseofwaterduringthosedays.Itissixweekssincewehadaproper_________.Sevenhundredandsixty-threedays—whatalongtime!Ioften_____thefamily,buttheexcitementofbeingonMarsisworthit!Goodluck!

Yours,

UncleStephenlowshowermissWhat’sworse,ourwatersuppli15PhrasesinSectionC了解太阳系以……命名绕着地球转在夜空互相离得最近搜寻离……已有……时间了在旅程期间限制水的使用值得knowaboutthesolarsystembenamedaftergoaroundtheearthinthenightskybeclosesttoeachothersearchforIt’s…since….duringthejourneylimittheuseofwaterbeworthofPhrasesinSectionCknowabout16Unit4Topic3Idon’tthinkalienscanbefoundinspace.Unit4Topic317SectionCSectionC18Besidestheearth,doyouknowotherplanets?SolarsystemBesidestheearth,doyouknow19MarsTheRedPlanetWhatdoyouknowaboutMars?Whatdoesitlooklike?=Whatisitlike?(事物)MarsTheRedPlanetWhatdoyou20CompareMarswiththeearth:

size,color,gravity,temperature,theoxygenCompareMarswiththeearth:21WhatdoyouknowaboutMars?Whatdoesitlooklike?MarsisthefourthplanetfromthesuninoursolarsystemandisnamedafterMars,theRomangodofwar.Itsdiameteris53%aswideasthatoftheearth.Marsgoesaroundthesun

atadistanceofabout228millionkilometers.YoucantellwhichplanetisMarsbecauseitisbrightredinthenightsky.Itlookslikearedandorangeball.It’sverybeautiful.Butduringspringandsummer,strongstormscancoverthewholesurfaceofMars.WhatdoyouknowaboutMar22ThegravityonthesurfaceofMarsisabouttwo-fifthsasstrongasitisonearth.Soaperson(whoweighs90kilosonearth)weighsonly36kilosonMars.ThetemperatureonMarsisbetween-138°Cand28°C.Theairhasonly0.13%oxygen.

IttakesaspaceshipabouteightmonthstoreachMarsfromtheearthwhenthetwoplanetsareclosettoeachother.ScientistsarestillsearchingformoreinformationaboutMars.Thegravityonthesurfaceof231aReadandanswerthequestions:1.WhatisMarsnamedafter?It’snamedaftertheRomangodofwar.2.HowfarisMarsfromthesun?Atadistanceofabout228millionkilometers.3.Howmuchdoesapersonweighifheweighs150kilosonearth?60kilos.4.CanhumanbeingsliveonMars?No,because…1aReadandanswerthequestio241bworkaloneRead1aagainandwritedowntheinformationaboutMars.Diameter:___________________________________Color:______________________________________Shape:_____________________________________Climate:__________________________________________________________________________________________________________________________Gravity:____________________________________Distancefromthesun:________________________53%aswideasthatoftheearthbrightredinthenightskyaredandorangeballabouttwo-fifthsasstrongasitisonearthabout228millionkilometersDuringspringandsummer,strongstormscancoverthewholesurfaceofMars.ThetemperatureonMarsisbetween–138and28.1bworkalone53%aswideasth251.atadistanceof+数字:“相隔…远”at+价格：Theysellthericeat5yuanperkilo.at+速度Hedroveataspeedof90kilometersperhour.at+时刻：Iusuallygetupat6o’clock.另：inthedistance在远处,远远地Canyouseethemountaininthedistance.2.benamedafter以……命名；按……来命名西部的孩子经常根据他们的父亲来命名。Childreninthewestareusuallynamedaftertheirfathers.1.atadistanceof+数字:263.tell常和can,could,beableto连用,意为“辨别,区别,认出”tellAfromB:分辨出A和B我辨别不出她和她妹妹。Ican’ttellherfromhersister.tellthedifferencesbetweenAandB:辨别A和B的不同点我辨别不出这个词和那个词的区别。Ican’ttellthedifferencesbetweenthiswordandthatone.Whichoneistrue?Ican’ttell.我辨别不出。4.search(sb/sth/sw)forsth/sb搜寻他们正在搜寻那个房间，找那个丢了的钱包。Theyaresearchingtheroomforthelostpurse.3.tell常和can,could,beablet275.含倍数的同级比较:“…倍数(aquarter/half/twice/threetimes/分数等)+as+形容词或副词+as…”例:1.这把尺子是那把尺子的一半长。

2.他跑起来有她的两倍快.

例：这个房间比那个房间大三倍。含倍数的比较级:“…倍数(aquarter/half/twice/threetimes/分数等)+形容词或副词比较级+than

Thisrulerishalfaslongasthatone.Thisroomisthreetimesbiggerthanthatone.Thisroomisfourtimesasbigasthatone.Herunsoncefasterthanher.Herunstwiceasfastasher.5.含倍数的同级比较:“…倍数(aquarter/h281cPairworkDiscussthefollowingcrazyquestionswithyourpartnerandstateyourseasons.DoesMarshaveagoodclimateforplants?IsMarsausefulplacetodryfruit?IsMarsagoodplaceforhumanbeingstolive?IsMarsacomfortableplaceforheavypeople?1cPairwork292cworkaloneKangkang’sunclesentane-mailtohimfromMars,butsomewordsaremissing.Listeningtothetapeandcompleteit.Kangkang@Thejourneyhasgoneverywell.HiKangkang,

IthasbeentwodayssincewelandedonMars.Ittookusmorethan_________togethere.Generally,thejourneywentwell,buttheliving__________werequitebadduringthejourney.Wehadto___________mostofthefo