Unit4LifeonMarsPeriod2ReadingLanguageGoal1.能熟悉并正確運(yùn)用本課時的重點(diǎn)單詞和短語。2.能了解22世紀(jì)在火星上生活可能的樣子。新課導(dǎo)入DiscussionDoyouthinkitispossibleforhumanbeingstoliveonMarsWhyorWhynot1.crowdedplanetf。4.spacehouses______2.spacecraft______5.robotonMars______3.speedboots______6.onlineteacher______a.Needsomeonetoteachyouanytime,anyplaceb.Livinginaspacehouseisfunc.Allaboutthenewestspacecraftthattravelinspaced.Ourshoescanmakeyouwalkfaster!e.RobotscouldbeofgreathelptopeopleonMarsf.ThepopulationontheEarthisstillincreasingrapidlycdbeaDanielwantstofindoutmoreaboutlifeinspaceinthefuture.HehasfoundthefollowingarticlebyafamousscientistwhothinkshumanscouldliveonMarsbythenextcentury.A▲MovingtoMarsSomepeoplebelievethathumanscouldliveontheplanetMarsbytheyear2100.Ourownplanet,theEarth,isbeingmoreandmorecrowdedandpollutedbecauseoftherapidincreaseinpopulation.ItishopedthatpeoplecouldstartalloveragainandbuildabetterworldonMars.Hereiswhatlifetherecouldbelike.2.HowlongdoesittaketoflytoMarsatpresenta.Hours.b.Months.c.Years.3.WhatwouldtheflighttoMarsbelikebytheyear2100a.Fastandfortable.b.Fastbutunfortable.c.Slowbutfortable.bbB4DanielismakingalistofthedifferencesbetweenlifeontheEarthtodayandlifeonMarsin2100.Helphimpletehislist.Usetheinformationfromthearticleonpages52and53.LifeontheEarthtodayLifeonMarsin2100Itispollutedandcrowded.Itwouldbecleanandhavelotsofspace.Spacecraftareslow.Thereisenoughwaterandoxygen.Itwouldbecleanandhavelotsofspace.Spacecraftwouldtravelatthespeedoflight.FastReadingDividethetextintofourpartsandwritethemainideaofeachpart.Part1Part2Part3Part4Paragraph1Paragraphs24Paragraphs56Paragraph7WhypeoplemovetoMarsDisadvantagesoflifeonMarsAdvantagesoflifeonMarsConclusionAtpresent,ourspacecraftaretooslowtocarrylargenumbersofpassengerstoMars—itwouldtakemonths.Withthedevelopmentoftechnology,bytheyear2100,thejourneymightonlytakeabout20minutesinspacecraftthattravelatthespeedoflight!However,thespacecraftwouldtravelsofastthatthejourneytoMarsmightbequiteunfortable.Manypeoplewouldfeelill.Humanscannotsurvivewithoutwater,oxygenorfood.Sofar,nobodyknowswhethertherewouldbeenoughwateroroxygenonMarsforpeoplethere.Moreover,scientistsarenotsurewhetherplantscouldgrowonMars.Foodwouldmostprobablybeintheformofpillsandwouldnotbesotasty.LifeontheEarthtodayLifeonMarsin2100Therearemanykindsoftastyfood.Gravityisnotaproblemforus.Manypeopleliveinsmallflats.Therewouldnotbeenoughwateroroxygen.Foodwouldmostprobablybeintheformofpillsandwouldnotbesotasty.ThegravityisonlyaboutthreeeighthsofthatontheEarth.LifeontheEarthtodayLifeonMarsin2100Peoplehavelittletimetorelax.Studentsstudyatrealschools.Peoplecouldhavemoretimetorelax.Studentswouldstudyatonlineschoolswith“eteachers”.problemsfoodwaternottastyoxygenPara3intheformofpillsunsure

Ifanelephantweighs64kgontheEarth,howmuchdoesitweighonMarsA.24kgB.34kgC.32kgpayattentiontopronouns.Para4gravity

The

gravity

on

Mars

is

only

about

three－eighths

of

that

on

the

Earth.

火星上的重力僅是地球上重力的八分之三。

◎用法總結(jié):three－eighths八分之三。英語中分?jǐn)?shù)的表達(dá)方法是:分子在前，分母在后；分子用基數(shù)詞，分母用序數(shù)詞；當(dāng)分子大于1時，分母(序數(shù)詞)后加－s。如:六分之一one－sixth；十分之七seven－tenths另外，二分之一還可以用half表達(dá)；四分之一還可以用onequarter表達(dá)；四分之三還可以表達(dá)為threequarters等。

根據(jù)漢語提示填寫單詞。

Two－thirds

?(三分之二)oftheclassareplantingtreesbytheriver.

Two－thirds1.ComparedwithlifeontheEarth,lifeonMarswouldbebetterinsomeways.與在地球上的生活相比,火星上的生活在有些方面將會更好些。過去分詞短語paredwithlifeontheEarth在句中作狀語。parewith…意思是“與……做比較”，此時with和to可通用。e.g.Thisroadisquitebusyparedwithours.與我們的那條路相比，這條路繁忙得多。hugeroomsmorespacerobotsrelaxPara5Housesa__________dvantagesEverystudentwouldhaveac________athomeconnectedtoani____________network.Theywouldstudyato____schoolswitheteachers.omputernterplanetarynlinePara6intermeansbetweenStudy2.LifeonMarswouldbeinterestingaswellaschallenging.火星上的生活，不僅有挑戰(zhàn)性，還很有趣。短語aswellas的意思是“不但……而且，既……又”。注意這一短語在翻譯成中文時，應(yīng)先aswellas后面的內(nèi)容，再翻譯前面的。e.g.Theyvisitedthemuseumaswellasthezoo.他們不但參觀了動物園,還參觀了博物館。

用適當(dāng)?shù)慕樵~填空。1.MrSongparesherdaughter

to?alittleprincess.

2.Compared

with

?thetopstudentsinyourclass，youarestillfarbehindthem.

towithDetailedreading1.WhencouldweliveontheplanetMars2.WhydoweneedtomovetoMarsReadPara.1andanswerthequestionsbelow.Bytheyear2100.Becauseourownplanet,theEarth,isbeingmoreandmorecrowdedandpolluted.atarealschoolontheEarthatonlineschoolsonMarsIprefertostudyat…because…Para6StudyPara7whatdoesthewriterthinkofthelifeonMarsinterestingchallengingOpinionjourneyfoodgravityhousesstudywateroxygenwhichdoyouthinkisinterestingorchallengingWhy(Workinpairs)ReadPara.2andfillintheblanks.1.

Atpresentourspacecraftaretoos________toc________largenumbersofpassengers.2.

Withthedevelopmentoftechnology,thespacecraftcantravelatthespeedofl_________.3.ThejourneytoMarsmightonlytakeabout20m________.HowcanwegettotheMarsightlowarryinutes

Compared

with

life

on

the

Earth，

life

on

Mars

would

be

better

in

some

ways.

和地球上的生活相比，火星上的生活在某些方面會更好。

◎用法總結(jié):1pare和邏輯主語life之間是被動關(guān)系，所以pare要用其過去分詞形式。ReadParagraphs34anddosomeTorFexercises.1.Humansneedfood,waterandoxygentosurvive.2.Mealswillprobablyb