人教版高中英语必修第三册 UNIT 4 Period Ⅵ Video Time Assessing Your Progress（课件）

UNIT4SPACEEXPLORATION

PeriodVIVideoTime&AssessingYourProgressVideoTimeStepI学习理解Enjoytwovideos:TheWanderingEarthandMars.Thengothroughthewordsandphrasesinthebox.Ifnecessary,lookupthewordsandthephrasesinadictionary.点击图片播放视频点击图片播放视频Enjoytwovideos:TheWanderingEarthandMars.Thengothroughthewordsandphrasesinthebox.Ifnecessary,lookupthewordsandthephrasesinadictionary.planetprobelaunchvehicleprotectiveshieldorbit parachute lander lunarroverplanet

n.行星

probe

n.空间探测器launchvehicle

运载火箭

protectiveshield

防护罩orbit

n.(天体等运行的)轨道

parachute

n.降落伞lander

n.着陆器

lunarrover

探月车Gothroughthefollowingstatementsandunderstandthemeanings.Decidewhethertheyaretrue(T)orfalse(F).Thenwatchthevideoandcheckyouranswers.(BeforeYouWatch)点击图片播放视频1.MarsisthefourthplanetfromtheSunandthesmallestplanetinthesolarsystem.2.Itisoneofthefewplanetsthatwecanseewiththenakedeye.3.LikeEarth,Marshasvolcanoes,valleys,polaricecaps,seasons,andweather.4.OlympusMons,thelargestvolcanoonMars,isabouttwiceashighasMountQomolangma.□□□□FTTFWatchthevideoagainandputtheeventsinthecorrectorder._____Theprobeseparatesfromthelaunchvehicle._____ThelanderlandsonthesurfaceofMars._____TheprobeenterstheEarth-Marstransferorbit._____ControllersonEarthguidetheprobeintotheorbitaroundMars._____Thelanderdiscardstheprotectiveshieldandtheparachute._____Thespace-to-groundcommunicationslinkiscreated._____Theorbiterandthelanderseparate._____TherovertransmitsdatabacktoEarthandreceivesordersfromEarth._____TheroverbeginstoexplorethesurfaceofMars.127463589StepII应用实践VideoTimeWatchthevideoagainandanswerthequestions.•WhyisMarscalledthe“RedPlanet”?•Howhighisthelargestvolcanointhesolarsystem?•WhatdoyouknowabouttheatmospherearoundMars?•WhatistheicecappingthepolesonMarsmadefrom?•Whatdoes“abarrenplanet”mean?Itisoftenreferredtoasthe“RedPlanet”becauseofitsredsurface.Itisroughly27kilometreshigh.Itisverythinandmadeupmostlyofcarbondioxide.MuchofMars’siceismadefromcarbondioxide,notwater.Itmeans“一个贫瘠的星球”.StepIII迁移创新VideoTimeWorkinpairs.Onestudentactsasaspaceexpertandtheotheractsasareporter.Usewhatyouhavelearntfromthevideotomakeupaninterview.(AfterYouWatch)A:So,tellmeaboutMars.B:Well,it’sournearestplanetaryneighbour,andoneofthe

fewplanets

wethatcanseewiththenakedeye.A:IsitlikeEarth?B:Inmanywaysitis.Forexample,ithasvolcanoes,valleys,andseasonslikeEarth.However,itismuchcolderthanEarth,anditsatmosphere

isquitethin.A:WhendidChinalaunchitsfirstmissiontoMars?B:...AssessingYourProgressCompletethesentences.1.Arrowwouldcontinuetoflyforwardforeverinastraightlinewereitnotforg

,whichbringsthemdowntoEarth.2.Whilei

peoplecanoftensimplifythecomplex,afoolismorelikelytocomplicatethesimple.3.Heheadedtothewindowandshutit.O

,itwouldbetoocoldforhimtostaythere.4.Onlywhenagricultureisfullydevelopedcanindustryhave

smaterialandmarkets.5.Theriveristoos

forourboattofloaton.ravityntelligenttherwiseufficienthallowReadthepassageaboutLee’sworkinspaceandfillintheblankswiththewordsandphrasesinthebox.agencyastronautdatadeterminedintelligent

satellitefigureoutresultinLeewasbusyatwork.Unlikemostpeoplearoundtheworldthough,hisworkplacewasinspace.Therewasaproblemwitha(n)__________.Itwassupposedtosendinformationaboutthesunbacktothe________onEarth,buttheequipmentforsendingthe_____wasnotworkingproperly.SoitwasLee’smissionto_________theproblemandsolveit.Leewasvery__________asa(n)_________,andhewasalsoverycareful.Hewas___________tomakethesatelliteworkproperlyagain,buthewouldmakesuretobesafe.Heknewthatonesmallmistakecould__________death.satelliteagencydatafigureoutintellighentastronautdeterminedresultinFillintheblankswiththecorrectformsofthewordsinthebrackets.1.Ifyouwanttobeadmitted,youmusthavethebasicability_________(read)andwriteinEnglish.2.Somescientistsweredeterminedtohelphumansrealisetheirdream__________(explore)space.3.Thegovernmentencouragesfarmerstogrowcorninsteadofrice__________(improve)waterquality.4.________(learn)moreaboutChineseculture,JackhasdecidedtotakeChinesefolkmusicasaselectivecourse.5.Anxiously,shetookabusandreachedthestation,only______(find)thetrainhadleft.toreadtoexploretoimproveTolearntofindCompletethesentenceswiththecorrectformsofthewordsinthebox.1.Afterhavingsucceededin__________satellitesintospace,peoplewantedtoknowifitwassafeforahumantogointospace.On3November1957,adognamedLaikabecamethefirstlivingthing_________space.Shewasalsothefirstonetodiethere.2.TheUSSRandtheUSbothwantedtobethefirsttosendapersontothemoon.Later,theUSsucceeded,andNeilArmstrongbecamethefirstman_______ontothemoon.Duringthefirstmoonlanding,astronautshadnovehicles_______,sotheyhadtoexplorethemoononfoot.Onthefourthmission________onthemoon,astronautstookalunarvehiclesothattheycouldexploreplacesfurtheraway.sendsurvivepreventreachbreathesteplandsleepusehelpsendingtoreachtosteptousetolandCompletethesentenceswiththecorrectformsofthewordsinthebox.3.Astronautsmustwearspacesuitswhentheyworkinspacebecausethereisnoair_____________anditcanbeverycoldoutsidethespacecraft.While__________,theymustattachthemselvestosomethingsoas_____________floatingaround.4.TheaccidentontheApollo13spacecraftresultedinalossofoxygen,water,andelectricalpower.Theastronautsonboardhadtofight____________.Atthesametime,Houston’sMissionContr