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1、Unit3ComputersSectionAWarmingup,Pre-reading,ReadingAComprehending建议用时满分实际用时得分借题档案45分钟60分A.asC.whenB.wich0.though6.Whoshouldberesponsiblefortheaccident?I.单词拼法（共10空：每空1分，满分10分）依据首字母或汉语提示，写出符合句意的单词及其正确形式。1. 1（实在）cantdosuchstupidbehaviour.2. Nowstudentsareinneedofgood（科技的）booksbadly.3. Useyour（J敷才智），and
2、youresuretoachievesomething.4. mafraidthatyourwayofdoingthejobis（完全地）wrong.5. Thenewbuildingshavechangedthe（特点）ofthevillage.6. Therailway（f11）showedthatthetrainCOUldpass.1. 1havecthatthereare10,080minutesinaweek.8. Thearmyofficersledaragainsttheking.9. P,IthinkheISdishonest,butmanypeopletrusthim.10.
3、 Theprincipalsaatthepartydid,tseemtobeverywelcome.11. 依据汉语提示完成句子（共10小题：鼻小题2分.满分20分）1. Theboyworkedhard.（结果），hepassedtheexamnition.2. Sicknesssometimes（是由于）eatingtoomuch.3. Thediscussionbetweenthetwosidesraslastedforhalfamonthzbut（定无结果）.4.1 toldyoubefore（别碰我的东西）.5.ThereIsntenoughroomforu$,（9!不用说）anyg
4、uests.6. Sheaskedto（不被打搅）.7. Andrewdecidedto（成独干）andstarthisownbusiness.8. ThechildbbyGrandmaWangalltheseyears.（care）这些年这个核子都是由王妈妈照看9. BythetimeIwassixteen,mydream.（realize）到我卜六岁的时候，我的幻想实现了.10. Anyhow,mygoalis.aSfeofhhqualit.（provide）无论如何，我的目标是给人类供应高质心的生活。III.单项馍空（共10小遂：每小超2分.满分20分）1.WhendifferentCW
5、tUre$,Weoftenpayattentiononlytothedifferenceswithoutnoticingthesimilarities.A.comparedB.beingcomparedC.comparingD.havigcompared2. withthesizeofthewholeearthrthebiggestoceandoesntseembigatall.A.CompareB.WhencomparingCXomparIngD.Whencompared3Johthinksitwon/tbelongheIsreadyforhisnewjob.A.whenB.afterC.b
6、eforeD.since4.Thegirlhadhardlyrungthebellthedrwasopenedsuddenly,andherfriendrushedouttogreether.A.beforeB.untilC.asD.sinceS.ItraveltotheBinhaiNewAreabylightrailwayeverydayzdomanybusinessmenwholiveIndowntownTianjin.Theboss,nottheworkers.Theyjustcarriedouttheorder.A.astoldB.asaretoldC.astellingD.asthe
7、ytold7 .TheGreatWallistouristattractionthatmillionsofpeoplepourineveryyear.A.soawell-known,asowell-knownCsuchwell-knownaDsuchawell-known8 .Rosesneedspecialcaretheycanlivethroughwinter.A.becauseB.sothatC.evenifD.as9 .Thereisnotmuchtimeleft,butwemustgetthereontime.A.somehowBsomeWhatC.howeverD.anywayIO
8、AVedon,thavetokeeptheseoldchairsanymore.Theyarefallingapart.A.AnywayBJhereforeC.HoweverD.OtherwiseIV.网读理解（共5小超：每小52分,满分10分）Whatwillpoweryourhouseinthefuture?Nuclear，wind,orsolarpower?AccordingtoscientistsattheMassachusettsInstituteofTechnology（MIT）intheUS.itmightbeleaves-butartifidal（人造的）ones.Natura
9、lleavesareabletochangesunlightandwaterintoenergy.ltisknownasPhotOSYntheSiS（光合作用）Nowresearchershavefoundawaytoimitatethisseeminglysimpleprocess.TheartificialleafdevelopedbyDanielNoceraandhiscolleaguesatMITcanbeseenasaspecialsiliconchipwithCatalysts（催化剂）.Similartonaturalleaves,itcansplitwaterintohydro
10、genandoxygenwhenputintoabucketofwater.Thehydrogenandoxygengasesarethenstoredinafuelcell,whichusesthosetwomaterialstoproduceelectricity,locatedeitherontopofahouseorbesidethehouse.Thoughtheleafisonlyabouttheshapeofapokercard,scientistsclaimedthatitispromisingtobeaninexpensivesourceofelectricityindevel
11、opingcoutries.OnecanimaginevillagesinIndiaandAfricanotrlongfromnowpurchasinganaffordablebasicpowersystembaedonthistechnology,“saidefficiently.NoceraataconferenceoftheAmericanChemicalSociety.Theartificialleafisnotanewidea.ThefirstartificialleafwasinventedIn2019butwastooexpensiveandunstableforpractica
12、luse.Thenewleaf,bycontrast,ismadeofcheapmaterials,easytouseandhighlystable.InlaboratorystudiesNoceraShcXWedthatanartificialleafProtOtyPe（原型）8UIdoperateCOntlrWoUSIyforatleast45hourswithoutadropinactivity.ThewonderfulimprovementscomefromNocera,srecentdiscoveryofseveralpowerful,newandinexjensirvecataly
13、sts.Thesecatalystsmaketheenergytransformationinsidetheleafmoreefficientwithwaterandsunlight.Rightnow.thenewleafisabout10timesmoreefficientatcarryingoutphotosynthesisthananaturalone.Besides.thedevicecanruninwhateverwaterisavailable：thatis,itdoesntneedpurewater.Thisisimportantforsomecountriesthatdonth
14、aveaccesstopurewater.Withthegoaltomakeeachhomeitsownpowerstation*andgiveenergytothepoor”,scientistsbelievethatthenewtechnologycouldbewidelyusedindevelopingcountries,especiallyinIndiaandruralChina.1. Whichofthefollowingorderscorrectlyshowshowtheartificialleafisusedtoproduceelectricity?a.artificiallea
15、vessplitwaterintohydrogenandoxygenb.tehehydrogenandoxygengasesarestoredinafuelcellc.theartificialleavesareputinwaterd.thefuelcelluseshydrogenandoxygentoproduceelectricityA.c.ba.d.B.c.a.bd.C.bca,d.D.Cf113,d,b.2. WhichofthefollowingstatementsaboutnewartificialleavesisNOTWRONGaccordingtothearticle?A.Th
16、eyareinexpensivebutunstable.B.Teyareasefficientatcarryingoutphotosynthesisasnaturalleaves.C.Theycanworkonlyinpurewater.D.Theyneedseveralcatalyststohelpthemwork3.IbepurposeofthesdetistsatMindevelopingthenewartificialleaftsto.A.buildupmorepowerstationsintheworldB.providecheaperenergyfordevelopingcount
17、riesC.offerpeopleindevelopingcountriesaccesstopurewaterD.gainadeeperunderstandingofthephotosynthesisprocess4.Themainideaofthispassageis.A.anintroductiontothehistoryofartificialleavesB.aninventioncopyingphotosynthesisC.givngenergytothepoorD.amixtureofwaterpowerandsolarenergy5.Theunderlinedwordmimitat
18、einParagraph2canbereplacedbyZAproduceBhofdCprevent答案与解析D.copy1.simply3.intelligence5.character7.lculated9.PersonallyIAaresult3.withoutresult5.letalone7.goitalone2.technological4.Totally6.signal8.Revolutlon10.appearance2.resultsfrom4.leavemythingsalone6.beleftalone8. hasbeentakencareofrIII.9. hadbeen
19、realized10. toprovidehumanbeingswithICwe与compare之间为逻辑上的主涧美系，故用现在分词comparing作状语表示主动含义。2 .Dcompare1.j句干主语thebiggestocean之间为设轮上的动其关系，故用Whencompared作状语,表示被动含义.3 .C句意：约翰认为他不久就会为他的新工作打算好.ItWOrftbeIOngbefOre是个常用的句式，意思是“不久就会4 .A句急：这个女孩刚一按门铃，门就突然开了.她的挚友冲出去问候她.before之Until知道才:a5当时候；since力从以来，依据句意选择A项。题干中hardl
20、y.before事实上是固定句式，意思是：MJ就”,相当于hardly.when.,5 .Aas引导比较或方式状语从句时，-般采纳正常语序，但在正式语体里，as从句有时也采纳倒装谱序,即asId。或asIdo.句意：像住在天津市区的很多商务人士一样.6 .Aastold是方式状语从句astheyweretold的省略形式。7 .D在sosuch.that.结构中so可以用“so+%+a(an可单数名词”结构,而SUeh则用ISIKh+a(n)+(:+单数名词”结构。8 .Bsothat在该句中引导目的状语从句，意为“以便”“为了”.9 .D句意：时间不多了，但无论如何我们必需按时赶到那儿.an
21、yway在该句中意为“无论如何”.10 .Aanyway在该句中的意思是“反正”.【文意概说】本文是一篇科普文.文章介绍T科学家利用人造树叶仿效光合作用进行发电这一新独创.1.B细微环节理解题.文章的第三段提到人造树叶发电的过程：先把它放在一-桶水里，然后树叶将水分解为狙气和氧气，而1.气和辄气被存储于燃料电池里，随后电池利用辄气和氧气的反应发电.2. D细他环节理耕麴.依据文章第六段中的“ThewonderfulimprovementscomefromNocera1Srecentdiscoveryofseveralpowerful.newandinexpensivecatalysts.*11.人造树叶发电能够更有效率的关键在于催化剂.3. B推埋推断区.依据最终一段可知,人造树叶发电这,技术可以梢助发展中国家获得便宜的能源4B主旨大意题.琮观全文可知,本文主要讲解并描述了人造树叶模拟光合作用发电这一新独创5.D词义描洲题，画线部分的前文介绍了什么是光合作用.后文介绍了利用人造忸叶效仿这种光合作用进行发电的内容，所以该词的含义应当是“仿效”,故D项是最佳答案。
