仁愛(ài)九年級(jí)英語(yǔ)上課件

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+數(shù)字:“相隔…遠(yuǎn)”at+價(jià)格：Theysellthericeat5yuanperkilo.at+速度Hedroveataspeedof90kilometersperhour.at+時(shí)刻：Iusuallygetupat6o’clock.另：inthedistance在遠(yuǎn)處,遠(yuǎn)遠(yuǎn)地Canyouseethemountaininthedistance.2.benamedafter以……命名；按……來(lái)命名西部的孩子經(jīng)常根據(jù)他們的父親來(lái)命名。Childreninthewestareusuallynamedaftertheirfathers.1.atadistanceof+數(shù)字:103.tell常和can,could,beableto連用,意為“辨別,區(qū)別,認(rèn)出”tellAfromB:分辨出A和B我辨別不出她和她妹妹。Ican’ttellherfromhersister.tellthedifferencesbetweenAandB:辨別A和B的不同點(diǎn)我辨別不出這個(gè)詞和那個(gè)詞的區(qū)別。Ican’ttellthedifferencesbetweenthiswordandthatone.Whichoneistrue?Ican’ttell.我辨別不出。4.search(sb/sth/sw)forsth/sb搜尋他們正在搜尋那個(gè)房間，找那個(gè)丟了的錢包。Theyaresearchingtheroomforthelostpurse.3.tell常和can,could,beablet115.含倍數(shù)的同級(jí)比較:“…倍數(shù)(aquarter/half/twice/threetimes/分?jǐn)?shù)等)+as+形容詞或副詞+as…”例:1.這把尺子是那把尺子的一半長(zhǎng)。

2.他跑起來(lái)有她的兩倍快.

例：這個(gè)房間比那個(gè)房間大三倍。含倍數(shù)的比較級(jí):“…倍數(shù)(aquarter/half/twice/threetimes/分?jǐn)?shù)等)+形容詞或副詞比較級(jí)+than

Thisrulerishalfaslongasthatone.Thisroomisthreetimesbiggerthanthatone.Thisroomisfourtimesasbigasthatone.Herunsoncefasterthanher.Herunstwiceasfastasher.5.含倍數(shù)的同級(jí)比較:“…倍數(shù)(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了解太陽(yáng)系以……命名繞著地球轉(zhuǎn)在夜空互相離得最近搜尋離……已有……時(shí)間了在旅程期間限制水的使用值得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+數(shù)字:“相隔…遠(yuǎn)”at+價(jià)格：Theysellthericeat5yuanperkilo.at+速度Hedroveataspeedof90kilometersperhour.at+時(shí)刻：Iusuallygetupat6o’clock.另：inthedistance在遠(yuǎn)處,遠(yuǎn)遠(yuǎn)地Canyouseethemountaininthedistance.2.benamedafter以……命名；按……來(lái)命名西部的孩子經(jīng)常根據(jù)他們的父親來(lái)命名。Childreninthewestareusuallynamedaftertheirfathers.1.atadistanceof+數(shù)字:263.tell常和can,could,beableto連用,意為“辨別,區(qū)別,認(rèn)出”tellAfromB:分辨出A和B我辨別不出她和她妹妹。Ican’ttellherfromhersister.tellthedifferencesbetweenAandB:辨別A和B的不同點(diǎn)我辨別不出這個(gè)詞和那個(gè)詞的區(qū)別。Ican’ttellthedifferencesbetweenthiswordandthatone.Whichoneistrue?Ican’ttell.我辨別不出。4.search(sb/sth/sw)forsth/sb搜尋他們正在搜尋那個(gè)房間，找那個(gè)丟了的錢包。Theyaresearchingtheroomforthelostpurse.3.tell常和can,could,beablet275.含倍數(shù)的同級(jí)比較:“…倍數(shù)(aquarter/half/twice/threetimes/分?jǐn)?shù)等)+as+形容詞或副詞+as…”例:1.這把尺子是那把尺子的一半長(zhǎng)。

2.他跑起來(lái)有她的兩倍快.

例：這個(gè)房間比那個(gè)房間大三倍。含倍數(shù)的比較級(jí):“…倍數(shù)(aquarter/half/twice/threetimes/分?jǐn)?shù)等)+形容詞或副詞比較級(jí)+than

Thisrulerishalfaslongasthatone.Thisroomisthreetimesbiggerthanthatone.Thisroomisfourtimesasbigasthatone.Herunsoncefasterthanher.Herunstwiceasfastasher.5.含倍數(shù)的同級(jí)比較:“…倍數(shù)(aquarter/h281cPairworkDiscussthefollowingcrazyquestionswithyourpartnerandstateyourseasons.DoesMarshaveagoodclimateforplants?IsMarsausefulplacetodryfruit?IsMarsagoodplaceforhumanbeingstolive?IsMarsacomfortableplaceforheavypeople?1cPairwork292cworkaloneKangkang’sunclesentane-mailtohimfromMars,butsomewordsaremissing.Listeningtothetapeandcompleteit.Kangkang@Thejourneyhasgoneverywell.HiKangkang,

IthasbeentwodayssincewelandedonMars.Ittookusmorethan_________togethere.Generally,thejourneywentwell,buttheliving__________werequitebadduringthejourney.Wehadto___________mostofthefo