2024九年級(jí)英語(yǔ)下冊(cè)Unit4LifeonMarsPeriod2Reading課件牛津譯林版

Period2ReadingUnit4

LifeonMarsALifeonanotherplanetDanielwantstofindoutmoreaboutlifeinspaceinthefuture.HehasfoundthefollowingarticlebyafamousscientistwhothinkshumanscouldliveonMarsbythenextcentury.MovingtoMarsSomepeoplebelievethathumanscouldliveontheplanetMarsbytheyear2100.Ourownplanet,theEarth,isbecomingmoreandmorecrowdedandpollutedbecauseoftherapidincreaseinpopulation.①I(mǎi)tishopedthatpeoplecouldstartalloveragainandbuildabetterworldonMars.Hereiswhatlifetherecouldbelike.becrowdedwith擠滿(mǎn)了……有望……溫馨提示：此符號(hào)表示“考點(diǎn)精講點(diǎn)撥”鏈接。Atpresent,ourspacecraftaretooslowtocarrylargenumbersofpassengerstoMars—itwouldtakemonths.Withthedevelopmentoftechnology,bytheyear2100,thejourneymightonlytakeabout20minutesinspacecraftthattravelatthespeedoflight!②

However,thespacecraftwouldtravelsofastthatthejourneytoMarsmightbequiteuncomfortable.Manypeoplewouldfeelill.學(xué)科素養(yǎng)·勇于探究激發(fā)好奇心和想象力，培養(yǎng)堅(jiān)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(dòng)詞不定式（短語(yǔ)）作定語(yǔ)TherewouldprobablybenoschoolsonMars.Everystudentwouldhaveacomputerathomeconnectedtoaninterplanetarynetwork.Theywouldstudyatonlineschoolswith“e-teachers”.LifeonMarswouldbeinterestingaswellaschallenging.學(xué)科素養(yǎng)·勇于探究具有數(shù)字化生存能力，主動(dòng)適應(yīng)“互聯(lián)網(wǎng)”等社會(huì)信息化發(fā)展趨勢(shì)。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(diǎn)精講①Ourownplanet,theEarth,isbecomingmoreandmorecrowdedandpollutedbecauseoftherapidincreaseinpopulation.比較級(jí)+and+比較級(jí)越來(lái)越……若形容詞的比較級(jí)是加more構(gòu)成的，則用“moreandmore+形容詞原級(jí)”表示“越來(lái)越……”，moreandmorecrowded“越來(lái)越擁擠”?？键c(diǎn)1考向考點(diǎn)精講e.g.Ourcountryisbecomingstrongerandstronger.我們的國(guó)家正在變得越來(lái)越強(qiáng)大。Themore,thebetter.越多越好。The＋比較級(jí)（+主語(yǔ)+謂語(yǔ)），the＋比較級(jí)（+主語(yǔ)+謂語(yǔ)）.意為“越……，就越……”?？碱}1：[連云港]The__________(努力)youpractise,thegreaterprogressyouwillmake.【點(diǎn)撥】句意：你越努力練習(xí)，你取得的進(jìn)步就越大。hard“努力”，副詞，此處是“the+比較級(jí)，the+比較級(jí)”的結(jié)構(gòu)，應(yīng)用hard的比較級(jí)harder。harder考點(diǎn)精講考點(diǎn)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(méi)有意識(shí)到自己正呼吸著污染了的空氣。考點(diǎn)2還可作動(dòng)詞pollute的過(guò)去式和過(guò)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(diǎn)精講②Withthedevelopmentoftechnology,bytheyear2100,thejourneymightonlytakeabout20minutesinspacecraftthattravelatthespeedoflight!with的用法考點(diǎn)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(diǎn)精講e.g.Theshadowslengthenedwiththeapproachofsunset.隨著太陽(yáng)西沉，影子越來(lái)越長(zhǎng)。HeoftengoestothelibrarywithJenny.他經(jīng)常和珍妮一起去圖書(shū)館。He’satallkidwithshorthair.他是個(gè)有著一頭短發(fā)的高個(gè)子小孩。Hewriteswithapencil.他用鉛筆寫(xiě)字?？碱}2：[無(wú)錫]OurEnglishteachercameintotheclassroom_____asmileonherface.A.inB.overC.withD.against【點(diǎn)撥】句意：我們的英語(yǔ)老師面帶微笑走進(jìn)了教室。考查介詞辨析。withasmileonherface“面帶微笑”。C考點(diǎn)精講考題3：[濱州]—I’mthirsty.I’dlikeaglassoforangejuice.Whataboutyou,Betty?—Ipreferacupoftea________nothinginit.A.toB.forC.withD.without【點(diǎn)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(diǎn)精講考點(diǎn)精講atthespeedof以……的速度e.g.Theplanecanflyatthespeedofsound.這架飛機(jī)能夠以聲速飛行。Wecanseeahorserunningathighspeed.我們能夠看到一匹駿馬在飛速奔馳?？键c(diǎn)4名詞，意為“速度”。與speed相關(guān)的常用短語(yǔ)：①athighspeed以高速②atfullspeed以全速考題4：火車(chē)以每小時(shí)200公里的速度行駛。Thetraintravels________________________________twohundredkilometersperhour.atthespeedof考點(diǎn)精講小貼士介詞at常用于表示速度、價(jià)格、溫度等。e.g.atthepriceof以……價(jià)格返回考點(diǎn)精講③Humanscannotsurvivewithoutwater,oxygenorfood.without/w?'ea?t/prep.沒(méi)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(huà)沒(méi)有說(shuō)就出去了?？键c(diǎn)5without常用作介詞，主要意思有“沒(méi)有，毫無(wú)，不”，反義詞是with。后接名詞、代詞或動(dòng)名詞?？碱}5：[武漢]PleasebringMs.Steentothewelcomeparty_____tellinghersothatshecanbesurprised.A.aboutB.fromC.withoutD.for【點(diǎn)撥】根據(jù)“tellinghersothatshecanbesurprised”可知不告訴她，她才會(huì)驚訝。C考點(diǎn)精講返回考點(diǎn)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(diǎn)6考點(diǎn)精講e.g.Theyareverydelicious,ofcourse,butbecarefulnottoeattoomanyofthem.當(dāng)然，它們非常美味，但要注意不要吃太多。小貼士：在國(guó)內(nèi)delicious用得比較多。tasty習(xí)慣用于口語(yǔ)，多用作表語(yǔ)。delicious多用于書(shū)面，多用作定語(yǔ)。辨析：tasty與delicious返回考點(diǎn)精講⑤Peoplewouldhavetowearbootsthatarespeciallydesignedtopreventthemselvesfromfloatingoffintospace.specially/'spe??li/adv.特地，專(zhuān)門(mén)地e.g.Imadeacakespeciallyforyou.我特地為你做了個(gè)蛋糕。Icamespeciallytoaskyouaquestion.我專(zhuān)門(mén)來(lái)問(wèn)你一個(gè)問(wèn)題?？键c(diǎn)7表示目的時(shí)，specially常與動(dòng)詞不定式或for短語(yǔ)連用?？键c(diǎn)精講e.g.Hecamespeciallytosaysorrytoher.他特意來(lái)向她道歉。Thenoiseisunpleasant,especiallywhenyouaretryingtosleep.噪音令人討厭，尤其當(dāng)你正在努力睡覺(jué)的時(shí)候。specially專(zhuān)門(mén)地，特地表示“不是為了別的，而是為了……”，強(qiáng)調(diào)唯一目的。especially尤其，特別地常用來(lái)對(duì)前面所述的事件進(jìn)行進(jìn)一步的說(shuō)明或補(bǔ)充。辨析：specially與especially考題6：[常州]Thesummervacationiscoming.Don’tswiminthelake,_______whenyouarealone.A.probablyB.possiblyC.especiallyD.exactlyC考點(diǎn)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(diǎn)精講preventsb.(from)doingsth.阻止某人做某事考點(diǎn)8特別提醒keepsb.fromdoingsth.阻止某人做某事，其中from無(wú)論在主動(dòng)語(yǔ)態(tài)中還是被動(dòng)語(yǔ)態(tài)中，都不能省略。與stopsb.(from)doingsth.同義，在主動(dòng)語(yǔ)態(tài)中from可以省略，在被動(dòng)語(yǔ)態(tài)中不可省略?？键c(diǎn)精講e.g.Nothingcanpreventus(from)movingon.沒(méi)有什么能夠阻止我們繼續(xù)前行。Wemustprevent/stopthemsmokingintheroom.我們必須阻止他們?cè)诜块g吸煙。Wearepreventedfromsmokingintheroom.我們被阻止在房間吸煙。Plantingtreescankeepsoilfrombeingwashedaway.植樹(shù)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(diǎn)撥】preventsb./sth.f