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练习(二)PartIStructure16._____whattodo,hewenttothemanagerforhelp.A)NottoknowB)NotknowingC)NothavingknownD)Havingnotknown17._____thesportsmeetingwillbeheldisnotknownyet.A)IfB)WhetherC)WeatherD)BothAandB18.Theshirt_____wasveryexpensive.A)boughtlastweekB)heboughtweekC)whichheboughtitlastweekD)heboughtlastweek19.Wemovedtothetown_____wecouldgotoseeourparentsoften.A)evenifB)incaseC)sothatD)asifBBDC20.Ithinkit'shightimewe_____measurestoprotecttheenvironment.A)tookB)willtakeC)takeD)havetaken21.Maryhasgotafullmarkinthetest.She_____veryhardallthetime.A)willworkB)musthaveworkedC)mayworkD)couldhaveworked22.Iwouldpay_____forthebookbecauseIloveitsomuch.A)muchtwiceB)twotimesC)twiceasmuchD)asmuchtwiceABC23.Scarcely_____asleepwhenthephonerang.A)hadIfallenB)IhadfallenC)fellID)Ifell24.Morethanoneofficial_____involvedinthecase.A)wereB)wasC)beingD)be25.Thestudentisdifferent_____allthestudentsIhaveseen.A)onB)amongC)withD)fromABD26.Neithertheclerksnorthemanager(know)anythingabouttheaccidentnow.27.IfI(leave)alittleearlier,Iwouldhavecaughtthetrain.28.Insomewaystheseschoolsare(differ)fromChinesemiddleschools.29.Theywouldrathertryandfailthan(give)uptheplan.30.Theyareallopposedto(put)themeetingoff.knowshadleftdifferentgiveputting31.People(live)comfortablyinthetownshardlyfeelthepleasureoflivinginthecountry.32.Womenaresometimes(fair)paideventhoughtheydothesamejobasmen.33.TheBritishpoliticalsystem(evolution)overseveralcenturies.34.Afteramedicalexamination,thedoctorgavemea(favorably)reportonmyhealth.35.Heknowseven(little)abouttheOlympicGamesthanIdo.livingunfairlyhasevolvedfavorablelessItwouldbedifficulttohavesocietylikeourswithoutpublicgoodssuchasdefense,transportation,andotherservices.Apublicgoodisonethatapersoncanusewithoutreducingtheuseofitforanotherperson.Oneofthebestexamplesofapublicgoodisnationaldefense.Onepersoncanbenefitfromournationaldefensewithoutreducinganotherperson'sbenefits.Infact,itisdifficulttokeepanypersoninoursocietyfromenjoyingthebenefitsofnationaldefense.Themarketsystemdoesnotworkwellinproducingpublicgoods.Thisisbecauseapersonwhorefusestopayforapublicgoodcannotbekeptfromusingit.Supposethattheneighborsinahighcrimeareadecidetohireapoliceforce.Eachneighbor,exceptMrs.Smith,agreestopay$100ayearforit.Mrs.Smithrefusestopaybecausesheknowsthatifalltheotherspaythe$100,thepolicewillguardtheareaanyway.SoMrs.Smithcanenjoytheservicesofthepoliceforcewithoutpaying$100.Themarketsystemhasnowaytodealwiththistypeofproblem.Forthisreason,wecannotaskeachpersontomakeadirectpaymentintheformofproductprice.Therefore,wecollectmoneyforpublicgoodsbyusingtaxes.36.Accordingtothepassage,publicgoodsare_____.A)servicesenjoyedbyallpeopleB)whatwecanbuyandsellinpublicC)productsthatwemakefornationaldefenseD)taxespaidbythepeopleinvolved37.Thewritergivestheexampleofnationaldefenseinparagraph2inordertoshowthat.A)therewillbenosafetyifthereisnonationaldefenseB)allthepeopleshouldberesponsiblefornationaldefenseC)apublicgoodisasharedbenefitforthewholesocietyD)somepublicgoodsaremoreimportantthanothersAC38.Thepersonwhodoesnotpayforapublicgood_____.A)keepshimselffromusingitsbenefitB)cannotenjoyitsbenefitatanytimeC)failstokeepitsbenefitfrombeingusedD)enjoysitsbenefitallthesame39.Inthethirdparagraphtheauthorexplains______.A)whatrolethemarketsystemplaysinproducingpublicgoodsB)howweakthemarketsystemplaysinproducingpublicgoodsC)whysomepeoplerefusetopayforpublicgoodsD)whatwecandotomakeuseofthemarketsystemDB40.Fromthepassagewelearnthatthepurposeofcollectingtaxesis___.A)toensurethecontinuoussupplyofpublicgoodsB)toreducethedifferencebetweentherichandthepoorC)togetextramoneytosupportpublicgoodsD)toremindpeopleoftheirdutyAPeopleindifferentpartsoftheworldhaveverydifferentideasaboutwhatisgoodtoeat.Evenwhenpeopleindifferentcountrieseatthesamefood,theyoftenprepareitverydifferently.IfyouwereinGermany,youwouldfindsoupthatisthickandheavy.IfyouwereinChina,youwouldfindsoupthatisthinandclear.Onholidaysmostofuseatspecialfoods.Yearafteryear,evenifmanyotherthingschange,thefoodisalwaysthesame.Sometimeshousewivesbeginweeksinadvancetopreparethespecialfoodsthataretraditionallyservedoncertainholidays.Peopleindifferentpartsoftheworldalsohavedifferentideasaboutwhatisgoodtodrink.Amongthemostpopularhotdrinksarecoffeeandtea.CoffeeisverypopularinnorthernEuropeandintheMiddleEast.Somepeopleputcreamandsugarintheircoffee.ButintheUnitedStates,manypeopledrinktheircoffeeblackthatiswithoutcreamorsugar.TeaisthenationaldrinkinChina,Japan,andotherOriental(东方的)countries.IntheOrient,peopledrinkteawithoutsugar.ButinEngland,whereitisalsoanationaldrink,manypeopleusebothsugarandhotorcoldmilkintheirtea.41.Peopleindifferentpartsoftheworld_____.A)cookthesamefoodindifferentwaysB)likethesamekindsoffoodC)havethesameideasaboutfoodsD)knowhowtopreparethesamefood42.Specialfoodsonholidayswill_____.A)changealotyearafteryearB)havedifferenttasteswiththeyearspassingbyC)remainthesameformanyyearsD)beservedbeforecertainholidaysAC43.Whendrinkingcoffee,manyAmericansliketo_____.A)addteatoitB)addmilktoitC)drinkitwithcreamorsugaraddedD)drinkitw