2024九年級英語下冊Unit4LifeonMarsPeriod2Reading課件牛津譯林版

Period2ReadingUnit4

LifeonMarsALifeonanotherplanetDanielwantstofindoutmoreaboutlifeinspaceinthefuture.HehasfoundthefollowingarticlebyafamousscientistwhothinkshumanscouldliveonMarsbythenextcentury.MovingtoMarsSomepeoplebelievethathumanscouldliveontheplanetMarsbytheyear2100.Ourownplanet,theEarth,isbecomingmoreandmorecrowdedandpollutedbecauseoftherapidincreaseinpopulation.①ItishopedthatpeoplecouldstartalloveragainandbuildabetterworldonMars.Hereiswhatlifetherecouldbelike.becrowdedwith擠滿了……有望……溫馨提示：此符號表示“考點精講點撥”鏈接。Atpresent,ourspacecraftaretooslowtocarrylargenumbersofpassengerstoMars—itwouldtakemonths.Withthedevelopmentoftechnology,bytheyear2100,thejourneymightonlytakeabout20minutesinspacecraftthattravelatthespeedoflight!②

However,thespacecraftwouldtravelsofastthatthejourneytoMarsmightbequiteuncomfortable.Manypeoplewouldfeelill.學科素養(yǎng)·勇于探究激發(fā)好奇心和想象力，培養(yǎng)堅持不懈的探索精神。反義詞comfortableHumanscannotsurvivewithoutwater,oxygenorfood.③

Sofar,nobodyknowswhethertherewouldbeenoughwateroroxygenonMarsforpeoplethere.Moreover,scientistsarenotsurewhetherplantscouldgrowonMars.Foodwouldmostprobablybeintheformofpillsandwouldnotbesotasty.

④Gravitycouldbeanotherproblem.ThegravityonMarsisonlyaboutthree-eighthsofthatontheEarth.Peoplewouldhavetowearbootsthatarespeciallydesignedtopreventthemselvesfromfloatingoffintospace.

⑤ComparedwithlifeontheEarth,lifeonMarswouldbebetterinsomeways.

⑥

Peoplewouldhavemorespace.Theymightliveinhouseswithhugecomfortablerooms.Also,robotswoulddomostoftheirworksothattheycouldhavemoretimetorelax.動詞不定式（短語）作定語TherewouldprobablybenoschoolsonMars.Everystudentwouldhaveacomputerathomeconnectedtoaninterplanetarynetwork.Theywouldstudyatonlineschoolswith“e-teachers”.LifeonMarswouldbeinterestingaswellaschallenging.學科素養(yǎng)·勇于探究具有數(shù)字化生存能力，主動適應(yīng)“互聯(lián)網(wǎng)”等社會信息化發(fā)展趨勢。BLifeinthefutureB1Danielneedstocheckthemeaningsofsomewordsinthearticle.Helphimmatchthewordsontheleftwiththemeaningsontheright.Writethecorrectlettersintheblanks.1.crowded(line3)_______2.rapid(line4)_______3.population(line4)_______4.alloveragain(line5)_______5.passenger(line8)_______6.tasty(line18)

_______7.specially(line21)_______8.compare(line23)_______ea.foronepurposeb.asecondtimefromthebeginningc.decideinwhatwaythingsaresimilarordifferentd.havinganicetastee.fullofpeoplef.happeninginashortperiodoftimeg.apersonwhoridesinacar,bus,train,etc.butdoesnotdriveith.thetotalnumberofpeopleinanarea,acountry,etc.fhbgdacB2DanielislookingformoreinformationontheInternet.Belowarethekeywordsheusedandthelinkshegotfromthesearchengine.Matchthekeywordswiththelinks.Writethecorrectlettersintheblanks.1.crowdedplanetf。

2.spacecraft______3.speedboots______4.spacehouses______5.robotonMars______6.onlineteacher______a.Needsomeonetoteachyouanytime,anyplace?b.Livinginaspacehouseisfunc.Allaboutthenewestspacecraftthattravelinspaced.Ourshoescanmakeyouwalkfaster!e.RobotscouldbeofgreathelptopeopleonMarsf.ThepopulationontheEarthisstillincreasingrapidlycdbeaB3DanielistellingSimonaboutthearticle.Simonisveryinterestedandisaskingmanyquestions.HelpDanielanswerSimon’squestions.Circlethecorrectletters.1.WhywouldpeoplemovetoMars?a.TheEarthiscrowdedandpolluted.b.Peoplewanttomakefriendswiththosefromanotherplanet.c.FlyingtoMarswouldbefun.a2.HowlongdoesittaketoflytoMarsatpresent?a.Hours.b.Months.c.Years.3.WhatwouldtheflighttoMarsbelikebytheyear2100?a.Fastandcomfortable.b.Fastbutuncomfortable.c.Slowbutcomfortable.bb4.WhatwouldfoodonMarsbelike?a.Verytasty.b.Verysweet.c.Notverytasty.c5.WouldgravitybeaproblemonMars?a.No,it’snotaproblem.b.Yes.Manypeoplewouldgetlost.c.Yes,andpeoplewouldwearspecialboots.c6.WheremightpeopleliveonMars?a.Inhouseswithhugerooms.b.Onspacecraft.c.Insleepingbags.a7.WhatwouldschoolsbelikeonMars?a.Verysmall.b.Onlineschools.c.LikethoseontheEarth.b8.WhatdoesthewriterthinkoflifeonMars?a.BetterthanlifeontheEarth.b.WorsethanlifeontheEarth.c.Therewouldbegoodandbadpoints.cB4DanielismakingalistofthedifferencesbetweenlifeontheEarthtodayandlifeonMarsin2100.Helphimcompletehislist.Usetheinformationfromthearticleonpages52and53.LifeontheEarthtodayLifeonMarsin2100Itispollutedandcrowded.Itwouldbecleanandhavelotsofspace.Spacecraftareslow.Thereisenoughwaterandoxygen.Itwouldbecleanandhavelotsofspace.Spacecraftwouldtravelatthespeedoflight.LifeontheEarthtodayLifeonMarsin2100Therearemanykindsoftastyfood.Gravityisnotaproblemforus.Manypeopleliveinsmallflats.Therewouldnotbeenoughwateroroxygen.Foodwouldmostprobablybeintheformofpillsandwouldnotbesotasty.Thegravityisonlyaboutthree-eighthsofthatontheEarth.LifeontheEarthtodayLifeonMarsin2100Peoplehavelittletimetorelax.Studentsstudyatrealschools.Peoplecouldhavemoretimetorelax.Studentswouldstudyatonlineschoolswith“e-teachers”.考點精講①Ourownplanet,theEarth,isbecomingmoreandmorecrowdedandpollutedbecauseoftherapidincreaseinpopulation.比較級+and+比較級越來越……若形容詞的比較級是加more構(gòu)成的，則用“moreandmore+形容詞原級”表示“越來越……”，moreandmorecrowded“越來越擁擠”?？键c1考向考點精講e.g.Ourcountryisbecomingstrongerandstronger.我們的國家正在變得越來越強大。Themore,thebetter.越多越好。The＋比較級（+主語+謂語），the＋比較級（+主語+謂語）.意為“越……，就越……”。考題1：[連云港]The__________(努力)youpractise,thegreaterprogressyouwillmake.【點撥】句意：你越努力練習，你取得的進步就越大。hard“努力”，副詞，此處是“the+比較級，the+比較級”的結(jié)構(gòu)，應(yīng)用hard的比較級harder。harder考點精講考點精講polluted/p?'lu?t?d/adj.被污染的e.g.Pollutedwaterisnotsuitablefordrinking.被污染的水不適合飲用。Mostpeopledon’trealizethattheyarebreathingpollutedair.大多數(shù)人沒有意識到自己正呼吸著污染了的空氣?？键c2還可作動詞pollute的過去式和過去分詞polluted的詞形變化：pollutedpollutev.污染pollutionn.污染；污染物返回溫馨提示:可返回原文考點精講②Withthedevelopmentoftechnology,bytheyear2100,thejourneymightonlytakeabout20minutesinspacecraftthattravelatthespeedoflight!with的用法考點3with的用法：①介詞，意為“隨著”。②介詞，意為“和……一起”。③介詞，意為“帶有，具有”。④介詞，意為“用……”，表示使用工具、手段等。考點精講e.g.Theshadowslengthenedwiththeapproachofsunset.隨著太陽西沉，影子越來越長。HeoftengoestothelibrarywithJenny.他經(jīng)常和珍妮一起去圖書館。He’satallkidwithshorthair.他是個有著一頭短發(fā)的高個子小孩。Hewriteswithapencil.他用鉛筆寫字。考題2：[無錫]OurEnglishteachercameintotheclassroom_____asmileonherface.A.inB.overC.withD.against【點撥】句意：我們的英語老師面帶微笑走進了教室?？疾榻樵~辨析。withasmileonherface“面帶微笑”。C考點精講考題3：[濱州]—I’mthirsty.I’dlikeaglassoforangejuice.Whataboutyou,Betty?—Ipreferacupoftea________nothinginit.A.toB.forC.withD.without【點撥】根據(jù)“acupoftea...nothinginit”可知想要一杯什么都不加的茶，用介詞with。C考點精講考點精講atthespeedof以……的速度e.g.Theplanecanflyatthespeedofsound.這架飛機能夠以聲速飛行。Wecanseeahorserunningathighspeed.我們能夠看到一匹駿馬在飛速奔馳?？键c4名詞，意為“速度”。與speed相關(guān)的常用短語：①athighspeed以高速②atfullspeed以全速考題4：火車以每小時200公里的速度行駛。Thetraintravels________________________________twohundredkilometersperhour.atthespeedof考點精講小貼士介詞at常用于表示速度、價格、溫度等。e.g.atthepriceof以……價格返回考點精講③Humanscannotsurvivewithoutwater,oxygenorfood.without/w?'ea?t/prep.沒有；不和……在一起e.g.Tonyalwaysgoesoutwithoutacapinwinter.托尼冬天外出總是不戴帽子。Hewentoutwithoutsayingaword.他一句話沒有說就出去了?？键c5without常用作介詞，主要意思有“沒有，毫無，不”，反義詞是with。后接名詞、代詞或動名詞。考題5：[武漢]PleasebringMs.Steentothewelcomeparty_____tellinghersothatshecanbesurprised.A.aboutB.fromC.withoutD.for【點撥】根據(jù)“tellinghersothatshecanbesurprised”可知不告訴她，她才會驚訝。C考點精講返回考點精講④Foodwouldmostprobablybeintheformofpillsandwouldnotbesotasty.tasty/'te?sti/adj.味道好的e.g.Thesepancakesmadebymymotherarereallytasty.我媽媽做的這些煎餅真的好吃。Couldyoutellmethetrickofmakingsuchtastycakes?你能告訴我做這種美味蛋糕的訣竅嗎？考點6考點精講e.g.Theyareverydelicious,ofcourse,butbecarefulnottoeattoomanyofthem.當然，它們非常美味，但要注意不要吃太多。小貼士：在國內(nèi)delicious用得比較多。tasty習慣用于口語，多用作表語。delicious多用于書面，多用作定語。辨析：tasty與delicious返回考點精講⑤Peoplewouldhavetowearbootsthatarespeciallydesignedtopreventthemselvesfromfloatingoffintospace.specially/'spe??li/adv.特地，專門地e.g.Imadeacakespeciallyforyou.我特地為你做了個蛋糕。Icamespeciallytoaskyouaquestion.我專門來問你一個問題?？键c7表示目的時，specially常與動詞不定式或for短語連用。考點精講e.g.Hecamespeciallytosaysorrytoher.他特意來向她道歉。Thenoiseisunpleasant,especiallywhenyouaretryingtosleep.噪音令人討厭，尤其當你正在努力睡覺的時候。specially專門地，特地表示“不是為了別的，而是為了……”，強調(diào)唯一目的。especially尤其，特別地常用來對前面所述的事件進行進一步的說明或補充。辨析：specially與especially考題6：[常州]Thesummervacationiscoming.Don’tswiminthelake,_______whenyouarealone.A.probablyB.possiblyC.especiallyD.exactlyC考點精講可能大概尤其確切地小貼士：specially的形容詞形式為special，意為“特別的；特殊的”?？键c精講preventsb.(from)doingsth.阻止某人做某事考點8特別提醒keepsb.fromdoingsth.阻止某人做某事，其中from無論在主動語態(tài)中還是被動語態(tài)中，都不能省略。與stopsb.(from)doingsth.同義，在主動語態(tài)中from可以省略，在被動語態(tài)中不可省略?？键c精講e.g.Nothingcanpreventus(from)movingon.沒有什么能夠阻止我們繼續(xù)前行。Wemustprevent/stopthemsmokingintheroom.我們必須阻止他們在房間吸煙。Wearepreventedfromsmokingintheroom.我們被阻止在房間吸煙。Plantingtreescankeepsoilfrombeingwashedaway.植樹可以防止土壤流失。不可省略考題7：[黃岡、孝感、咸寧]—Dad,howaboutplantingsometreesinouryard?—Goodidea!Treescan______thewaterfromwashingtheearthaway.A.acceptB.preventC.discoverD.choose【點撥】preventsb./sth.f