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.30Suppose(假设)youaregoingtoBoston,andyou1thecitybefore.Ifsomeone2youabouttheinterestingplacesinthecity,you__3togetsomeideasofwhatyouwillsee.Butdon’thavea4__ideaofwheretheseplacesareorofhowtofind5.However,6__someonehasamapofthecityand7youthemainroadsandbuildings,youmaysay,“Oh,nowIsee.Icanfindmywaywith8__troubleatall”.Workinginmathissomewhat（有点儿）liketryingtofindyourway9anewcity.Perhapsthewordsmaytellyousomeinformationandyouhave10it,butyoucan’tseeanyclearroad11theanswers.Maybeyou12akindofmapofthemainroadsinmaths13__youfindyourway.Explore（探究）whatliesinmaths,and14tofindthemainroads.Theywill15youtotheanswer.Ifyoucanfindthe“map”,themathsproblemswillbeeasilyworkedout.1.A.aregoingtovisitB.oncevisitedC.havenevervisitedD.haveevervisit2.A.answersB.showsC.meetsD.tells3.A.beginB.likeC.learnD.refuse4.A.cleverB.clearC.strangeD.wrong5.A.someoneB.BostonC.themD.it6.A.ifB.thoughC.whetherD.since7.A.helpsB.givesC.passesD.shows8.A.notB.noC.someD.much9.A.ofB.toC.inDaround.10.A.thoughtoverB.heardaboutC.writtendownDtalkedwith11.A.withB.forC.ofDto12.A.needtohaveB.don’tneedCneedn’tD.inneedof13.A.helpB.tohelpC.helpsDhelpwith14.A.tryyourbestB.takeyourplaceC.lookupDwalkon15.A.keepB.sendC.leadD.ask名师点评文章以在陌生的城市找名胜为例，说明了解决数学最重要的是先找出一条通往答案的路径。答案简析1．C。下文表明：你要去的是一个一点儿都不熟悉的城市，说明以前没有去过。故选havenevervisited。2．D。show意为“带领某人参观某地”或“向某人展示某物”；tellsb.aboutsth.意为“告诉某人关于……的情况。根据下文可知tell为正确选项。3．A。文章表明：听了别人的介绍后，你对城市的名胜开始有了一些初步的印象。故选begin。4．B。根据文意，你对名胜的概况只是听说而已，对名胜的具体位置及如何找到所指的名胜不太清楚。故选clear。5．C。指代上文出现的interestingplaces应用them。6．A。根据句意，前半句是后半句的条件状语从句，应用if引导。7．D。showsb.sth.意为“把……给某人看”，合符文意，为正确选项。8．B。根据地图上的位置，你会毫不费力地找到想去的地方。故选no。9．B。本文是讲如何在一个陌生的城市里找到目的地，而不是找去某个城市的路。故选in。.10．A。做数学题时，你肯定要对题目中所给的信息进行思考。故应选thoughtover。11．D。theroadtotheanswers意为“解决问题的路径”，to为正确选项。12．A。根据上文列举的根据地图找名胜的例子可知，做数学题目也需要“地图”。故应选needtohave。13．B。这里应该用动词不定式tohelpyoufindyourway作目的状语才合符句意。14．A。tryone’sbesttodosth.意思是“尽某人最大的努力去做某事”，为正确选项。15．C。“leadsb.to某地”意思是“引导某人到达某地”。31SeveralyearsagoIstudiedinauniversityinthebiggestcityinourcountry.It’sbeautifulbutit’shotin__1__.SoIusuallyreturnedtomyhometownwhenmy__2__began.Itisnotbig,butit’scoolandquiet.Icould__3__inthedaytimeandhaveagoodsleepatnight.OnedayIhadsome__4__tosolve.ButIdidn’ttakethedictionarieshome.MyfathertoldmeCharlie,oneofmy__5__,hadagoodlibrary.Iwenttohishouseatonce.Wedidn’tseeeachotherafterI__6__middleschool.Atfirsthedidn’trecognizeme.He__7__meupanddown.Andthenhecalledout,“Oh,dear!It’syou,Fred!”Ofcoursewewere__8__tomeeteachotheragainandtalkedalotaboutourschoolmatesand__9__.Lateronheshowedmearoundhislibrary.Itwasn’tbigbuttherewerealotofnicebooksinit.AndthedictionariesI__10__wereinthemtoo.AtlastIsaid,“__11__youlendsomedictionariestome,please?”“I’msorryIdon’tlendanybooksto__12__,”saidtheyoungman.“AreyouafraidI’ll__13__them?”“No,I’mnot.I’mafraidyouwon’t__14__themtome.Look!Allthebooksarenot__15__,butborrowed!”.1.A.springB.summerC.autumnD.winter2.A.birthdayB.SaturdayC.SundayD.holiday3.A.studyB.playC.restD.run4.A.wordsB.sentencesC.problemsD.stories5.A.brothersB.sistersC.auntsD.classmates6.A.finishedB.heardC.sawD.met7.A.liftedB.carriedC.lookedD.pulled8.A.angryB.happyC.worriedD.sad9.A.doctorsB.teachersC.workersD.drivers10.A.lookedforB.readC.wroteD.lookedat11.A.NeedB.MustC.MayD.Can12.A.otherB.theotherC.othersD.another13.A.loseB.sellC.throwD.know14.A.payB.returnC.useD.lookafter15.A.madeB.pickedC.wonD.bought名师点评这篇短文主要讲了Charlie家里有许多藏书，却没有一本是自己买的，所以他从不借书给别人，因为他怕别人都和他一样。本题的不少答案只从缺空所在句子的语意和语法是无法确定的，解题是要联系上下文及一般常识进行推理。答案简析1.B。hot应该指的是夏天的天气情况。2.D。大学生暑假回家度假。3.A。学生暑假应该不忘学习。.4.C。solveproblems意为“解决问题”。5.D。根据下文可得知。6.A。finishmiddleschool表示“中学毕业”。7.C。looksb.upanddown表示“上下打量某人”，这时look用作及物动词。8.B。老同学相见自然是高兴。9.B。同学之间谈论的主要对象一般应该是同学和老师。10.A。根据上下文得知“我”正在寻找一本字典。11.D。这里指征求别人的意见，故用can。12.C。泛指其他人，故用复数。13.A。“我”以为他怕我把书弄丢，所以不借。14.B。根据下文得知他的书都是借的，所以他不愿借给我，怕我也象他一样借书不还。15.D。这些书都不是买的，而是借的。32Mr.WangteachesEnglishinamiddleschool.Helikeshisworkverymuch.Hewanted1ateacherevenwhenhewasayoungboy.TherearesixclassesinaschooldayatMr.Wang'smiddleschool.Mr.Wangteachersfiveofthesesixclasses.2hisfreehourfrom2to3intheafternoon,Mr.Wang3meetwithparents,checkstudents'homeworkand4manyotherthings.SoMr.Wangworkshardfromthemomenthegetstoschoolearlyinthemorninguntilheleavesforhomelateintheafternoon,andhisfreehourisnotfreeatall.InhisEnglishlesson,Mr.Wangsometimesteachespoems(诗).Helikespoemsverymuch,andhelikesLiBai’spoems5ofall.Inhisfifthclasstoday,Mr.Wangtaughtapoem.Hewrotethepoemontheblackboard.andreadit.Assoonashefinished6thepoem,thestudentsbegantoaskquestions.Heansweredallthequestions.Thenheaskedhisstudentstotalkaboutthepoem.7onewantedtostopwhenthebellrang.8home,Mr.Wangthoughtaboutthefifthclass.Hewashappyaboutwhathedidasateacher.Everyoneofhisstudents9thepoem.Whentheystartedtotalk,theyforgotaboutthetime.Hedidnothavetomakethem10.Heonlyhadtoanswertheirquestionsandhelpthemunderstandthepoem.1.A.wasB.beingC.tobeD.be2.A.InB.AtC.ToD.On3.A.hastoB.hasC.abletoD.will4.A.takecareforB.careofC.takecareofD.becarefulof5.A.betterB.goodC.wellD.best6.A.readingB.toreadC.readD.doing7.A.NotB.NoC.HavenoD.Any8.A.BythewayB.Tohiswa