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1、Unit4LifeonMarsReading1.原文呈现：Ourownplanet,theEarth,isbecomingmoreandmorecrowdedandpollutedbecauseoftherapidincreaseinpopulation.(P52)crowdedadj.拥挤的;挤满的;充满的；becrowdedwith.挤满CrOWdn.人群，群众inthecrowd在人群中IheCrOWd人群acrowdof.一群.CrOWdv.挤，靠近，涌入crowdinto涌入crowdout挤出crowdaround围拢ThestorewascrowdedwithshoppersHe
2、pushedhiswaythroughthecrowd.1.onglongago,therewasacrowdofantelopesintheforest.Thousandsofpeoplecrowdedthenarrowstreet.【牛刀小试】1.Theshopwitholdpeopleonweekends,butchildrenintheinterestingplaces.A.crowds；crowdedBxrowded；crowdsC.crowded：crowdD.iscrowded；crowd2 .MyfatherwarnedmeagainstgoingtoBeijingduring
3、MayDaybecauseitwas(crowd)withtourists.3 .Todayastheworldsurbanpopulationexplodes,andcitiesbecome(crowd)thanever.4 .每天早上鲁迅公园挤满了锻炼的老人.(crowd)【答案】LD2.crowded3.morccrowded4.EverymorningLuXunParkiscrowdedwitholdpeoplewhoexercise2.原文呈现：ItishopedthatpeoplecouldstartalloveragainandbuildabetterworldonMars.(P
4、52)ltishopedthat.希望Itis+done+that.(ff.大家.)Itsreportedthat.据报道It,sbelievedthat.相信Itsknownthat.众所周知It,ssaidthat.据说It,sthoughtthat.人们都认为Itisestimatedthat.据估计alloveragain再；重新allover到处，遍及；浑身allovertheworld全世界spreadallover遍及；遍布各地allovertheplace到处，各处alloverthelot混乱地；无条理地Afterdrinkingsomewine,Ifeelwarmallov
5、er.Theboxburstopenanditscontentsflewallovertheplace.【牛刀小试】1 .据说,一个新的建筑即将在此地建成。anewbuildingwillbebuiltintheplace.2 .据说之后不久就开始下雨了。soonafterwarditbegantorain.3 .世界各地的人们都与家人和朋友一起庆祝新年。PeoplecelebratetheNewYearwiththeirfamilyandfriends.【答案】LItssaidthat2.It,sreportedthat3.inallovertheworld3原文呈现：Atpresent,o
6、urspacecraftaretooslowtocarrynumbersofpassengerstoMars.(P52)numbersof许多的，大量的修饰复数可数名词。anumberof一些；许多的；若干的，后接可数名词复数,number前面可以用Iarge或SmaIl等词修饰，表示程度。做主语时，谓语动词用复数形式，thenumberof的数量，后面接可数名词复数。作主语时，谓语动词用第三人称单数。Anumberofparentshavevoicedconcernabouttheirchildrenssafety.Thenumberofstudentshasbeenfallingoffre
7、cently.【牛刀小试】1 .一Howmanyteachersarethereinyourschool?_themoveronehundred.A.Thenumberof;isB.Thenumberof;hasC.Anumberof;areD.Anumberof;have2 .一Alargenumberofpeopleinourcountrygettingvaccinated(接种疫苗)thesedays.Yes.AndgettingvaccinatedisthebestwaytopreventpeoplefromCOVID-19.A.isB.areC.wasD.were3.1 noursc
8、hoollibrarythereanumberofbooksandthenumberofthemgrowinglargerandlarger.D.have; areA.is;areB.are;isC.has;is【答案】ABB4.原文呈现：Withthedevelopmentoftechnology,bytheyear2100,thejourneymightonlytakeabout20minutesinspacecraftthattravelatthespeedoflight.(P52)Withthedevelopmentoftechnology介词短语在句中做伴随状语，表示一种伴随情况或条
9、件withthehelpofhim在他的帮助下withtheriseofsocialmedia随着社交媒体的兴起withthepassageoftime随着时间的流逝withthesupportofhisparents在他父母的支持下Withtherapidincreaseofpopulation,theEarthisbecomingmoreandmorecrowded.Withthepassageoftime,thewholethingwillbeforgotten.Speedn.速度ata/thespeedof以的速度atahigh/fullspeed以高速/全速.atalowspeed以
10、低速.inspeed迅速，赶快speed(spedsped)v.加速speedup加快速度Shewasdrivingathighspeedwhenshehadtheaccident.Younoticethatyourbreathinghasspedupabit.【牛刀小试】1.在家人的支持下，我得以实现我的目标。myfamily,Iwasabletoachievemygoals.2 .火车正以每小时六十英里的速度行驶Thetrainistravellingsixtymilesanhour.3 .我已经采取措施加快解决该问题Ihadalreadytakenstepstoasolutiontoth
11、eproblem【答案】l.Withthesupportof2.ataspeedof3.speedup5.原文呈现：Humanscannotsurvivewithoutwater,oxygenorfood.(P52)survivev.SUrViVeSth幸免于；从中挺过来/活过来SUrViVeOn依靠生存下来AsurviveB(by.)A比B活得长()【拓展】SUrViVorn.幸存者；生还者SUrViValn.U幸存；C残存物Idon,tknowhowyouallmanagetosurviveonJeremysSalary(薪水，工资).AsfarasIknow,theoldwomansur
12、vivedherhusbandbytenyears.Ifhccouldntfindhiswayoutoftheforest,therewouldbelittlechanceofsurvival.【牛刀小试】1.Afterhetheearthquake,theoldmanbecameoneofthefewofthefamilyandhismadehisoldfriendsveryhappy.(survive)【答案】l.survived;survivors;survival6.原文呈现：Foodwouldmostprobablybeintheformofpillsandwouldnotbesot
13、asty.(P52)formn.表格applicationform申请表fullout/COmPleteaform填表格formn.形式intheformof以的形式taketheformof.呈现为表现为v.形成 form/develop a habit 养成一个习惯 form a relationship 建乂关系form【拓展】含有in的常用短语：in all directions四面八方；各个方向in place在适当位置；准备妥当in the lead处于领先地位in surprise 惊讶地in prison在监狱(服刑)in a hurry匆忙地in ones twenties在
14、某人二十多岁时【牛刀小试】!.Fill in the following (form)in general总的来说；大体上in public公开地；在别人面前in fear恐惧地in need在困难时，在危难之中in order有序,整齐in all总计；一共in ones life在某人的一生中with the words above.2.Thebadhabitwhichinschoolhasagreateffectonhim.(form)3.1askedheropinion,butshejustaskedmeaquestion.A.inadditionB.inturnC.infactD.i
15、nreturn4.Neitherofthemwantedtosayanythingtoeachother,sotheywalkedhome.A.insilenceB.insurpriseC.atfirstD.atleast【答案】Lforms2.wasformed3.D4.A7.原文呈现ThegravityonMarsisonlyaboutthree-eighthsofthatontheEarth.(P53)three-eighthsnum.八分之三英语中分数的表达法：分子用基数词，分母用序数词；分子大于1时，分母变为免数形式；分子与分母之间可加连字符，也可不加。注意：分数后面常跟Of短语，作主语时，谓语动词的单史数和Of后面名词的单亚数保持一致。Three-fourthsofthelandiscoveredbyforestsinthatcountry.Three-fourthsofthestudentsinthisuniversityarcfromChina.【牛刀小试】1. About
