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1EvaluationWarning:ThedocumentwascreatedwithSpire.Docfor.NET.课时跟踪练(三)Lesson2&Lesson3—Pre-readingⅠ.阅读理解ATheideaofcloningyourpetsoundslikealaughablewasteofmoney,becauseitis.Butitstartstoseemalittlelesslaughablewhenyourownbelovedpetstartsgettingolder.IfIhadhadafewhundredthousanddollarstospare,IknowIwouldhavehalfseriouslyconsidereditformydearlittlecat,whodiedlastyear.OnecouplethatdoeshappentohaveafewhundredthousanddollarstospareisBarryDillerandDianevonFurstenberg,whohavereportedlyclonedtheirbelovedJackRussellTerrier(akindofdog),Shannon,andnowhavetwoidenticalJackRussellTerriers,namedDeenaandEvita.Whenyourpetdies,youjustwantyourpetback,oratleastascloseacopyasyoucanget.Soit'sreallynosurprisethatofthearound600dogsclonedbySooamBiotechResearchFoundationmostwereclonedforsadpetowners.ThelabinSeoul,SouthKorea,isnowtheonlyplaceontheplanetinthebusinessofcloningpetdogsforowners.But,infact,thetechnologywon'tgiveyouyourpetback.Theredon'tyetappeartobeanystudiesonthebehaviorofclonedpets,butresearchonclonedcowsandpigshassofarshownmarkeddifferencesinbehaviorandevenlooksinclonedanimals.TheDNAisexactlythesame,buttherearestilldifferencesinpersonalityandappearance.EvenifDillerandvonFurstenburgraisetheirnewdogsintheexactsameenvironmentintheexactsamewaythattheyraisedShannon,thenewdogswillstillbehavedifferently.“Thepromiseofpetcloningisthatyourclonedpetisgoingtobehaveandlookliketheoneyoualreadyhave—andthatwillnotbethecase，”saidProfessorJorgePiedrahitaatN．C.State.“We'veclonedanimalsthatwereraisedinthesameenvironment,buttheystilldidn'tactthesame.”语篇解读：本文是议论文。尽管宠物克隆技术已经比较成熟，但克隆出来的宠物并不能与原来那个一模一样。1．WhatcanwelearnaboutthelabinSeoul?A．Itwassetupbysomepetowners.B．Ithasclonedhundredsofpetdogs.2C．Itchargesnothingforitsservices.D．Ithasclonedacatfortheauthor.解析：选B细节理解题。由第二段中的“Soit'sreallynosurprisethatofthearound600dogsclonedbySooamBiotechResearchFoundationmostwereclonedforsadpetowners.”可知，这家实验室已经克隆了几百只宠物狗。2．Whydoestheauthormentionthestudiesonclonedcowsandpigs?A．Toexplainwhyfarmanimalsarecloned.B．Todiscusswhypetcloningissopopular.C．Toshowclonedanimalsareverydifferentfromeachother.D．Toprovecloningisnotagoodwaytobringpetsfromthedead.解析：选D推理判断题。由第三段中的“butresearchonclonedcowsandpigshassofarshownmarkeddifferencesinbehaviorandevenlooksinclonedanimals.TheDNAisexactlythesame,buttherearestilldifferencesinpersonalityandappearance.”可知，作者提到关于克隆牛和猪的研究是为了说明克隆出来的宠物会与原来那个宠物不一样，因此克隆并不是一个挽回自己原有宠物的好方法。3．Whatwillthecouplebelikelytofindoutabouttheirnewdogs?A．They'llgrowinaverystrangeway.B．They'lldisliketheirnewenvironment.C．They'llactdifferentlyfromShannon.D．They'llhavethesamepersonalityasShannon.解析：选C细节理解题。由最后一段中的“thenewdogswillstillbehavedifferently”可知，这对夫妇会发现他们的克隆狗与原来的Shannon在行为举止上并不相同。4．WhatwasPiedrahita'sattitudetowardsthelab'spromiseofpetcloning?A．Hedisbelievedit.B．Hewasworriedaboutit.C．Hewascautiousaboutit.D．Heshowedmuchinterestinit.解析：选A推理判断题。由最后一段中的“thatwillnotbethecase”可知，Piedrahita并不相信这样的承诺。BIamamemberoftheYoungPeople'sChorus(YPC)ofNewYorkCity.Thechorusismadeupofchildrenaged8to18.I'vebeeninthechorusforalmostfiveyears,andIlovethecommunityof“youngartists.”Everyyear,wegiveabigperformance3toraisemoneyfortheorganization.It'sthebiggestconcertoftheyearandisheldatLincolnCenter.Alotofworkgoesintothefinalperformance.First,webeginlearningourmusic.Weusuallystartbylearningthenotes,andthenweaddthewords.Someonecomesintoteachusthemeaningandpronunciationofthelyrics(歌词)ifthewordsarenotinEnglish.Next,wememorizethewholesong,evenifweonlysingpartofit.OneofthehardestpieceswesangthisyearwasTjak！，asonginspiredbyaBalineseMonkeyChant.Ithasfourparts,eachwithadifferentrhythm.Onceweadddynamics(力度变化)tooursongstogivethemlife,it'stimetoaddchoreography.JacquieBird,thedirector,tellsustoconnectthewordswesingtoourmovementsaswebreatheandcountinourheads.Aswegetclosertotheconcertnight,therehearsals(彩排)gettougher.Sometimes,wedoaquickreview,andsometimeswesingthewholesong.Mykneesandarmsstarttoache.Butoncewegetabreakandsomefood,wecomebackfeelingbetter.Werehearseonweekendsforalmostamonthbeforehand;everymomentisimportantandworthit.Therealexcitementcomesduringtherehearsal,whenwemeetourguestartists.Thisyear,YPCinvitedMandyGonzales,AlexandraSocha,andTimeforThreetojoinus.Afterhearingthatwewouldworkwiththem,wejumpedupanddownbackstageasquietlyaswecould.Showtime！WesangwithmusicalguestsandperformeddancesthatseemedasiftheycamestraightfromaBroadwayshow.Attheendofthenight,wescreamedwithexcitementbackstage.Forallofus,pullingoffthebiggestperformanceoftheyearfeltgreat.语篇解读：本文是记叙文。作者讲述了自己所在的合唱团一年一次的大型表演的准备工作和演出情况。5．Whyisabigperformancegivenyearly?A．TocollectmoneyforYPC.B．Topickexcellentperformers.C．Toshowkids'talentforacting.D．TocelebratethesuccessofYPC.解析：选A细节理解题。由第一段中的“Everyyear,wegiveabigperformancetoraisemoneyfortheorganization.”可知，每年一次的大型表演是为YPC筹集资金。6．Whatdoestheunderlinedword“choreography”inParagraph4mean?4A．Lyrics.B．Games.C．Videos.D．Dances.解析：选D词义猜测题。由画线词之前的“Onceweadddynamicstooursongs”和画线词之后的“connectthewordswesingtoourmovementsaswebreatheandcountinourheads”可知，为了使歌曲富有活力，需要增加舞步。7．Whatexcitestheauthormostduring