Unit4GlobalwarmingⅠ.单项填空1．Workgetsdone________whenpeopledoittogether，andtherewardsarehighertoo.A．easilyB．veryeasyC．moreeasilyD．easier2．Wemusttakeallpossiblemeasures________toimproveworkingconditions.A．tendB．tendingC．tendedD．beingtended3．Theeducationof________younghasbecome________hotandserioustopicinthepresentsociety.A．the；/B．a；theC．/；theD．the；a4．Sheaswellasthetwoguides________theideaofclimbingthemountaininsuchbadweather.A．opposedtoB．objectedtoC．areopposedtoD．approved5．—Whatisthecostofyourshirtshere，sir?—Itdependsonwhichfashionyouwanttobuy，andtheprices________from100dollarsto500dollars.A．increaseB．rangeC．reachD．different6．—Say，Jane，willyoucomewithmetothegameFriday?—________，Bob，butIpromisedMaryI’dgowithher.A．MypleasureB．ThanksC．TakeiteasyD．Forgetit7．________，Americanfirmsremainthemostproductiveintheworld.A．InaverageB．WithaverageC．OnaverageD．Byaverage8．Weadvocatethateveryone________somemoneytothefloodstrickenarea.A．donatesB．todonateC．isdonateD．donate9．Howdidit________thathumansspeaksomanydifferentlanguages？A．comeaboutB．comeoutC．comeacrossD．comeup10．Ireallydon’tknowhowyou________thegreatnoisehere！It’sbadforyourhealth.A．keepupwithB．catchupwithC．comeupwithD．putupwith11．Howmanypeoplehave________forthebookwhenitisprinted?A．boughtB．subscribedC．takenD．booked12．Largequantitiesofsolidfuel________consumedeverydayandtoomuchcarbondioxideissentintotheair，whichinturn________thegoingupoftemperature.A．is；resultsinB．are；resultsinC．is；leadstoD．are；resultsfrom13．—Haveyougotanyideaforthesummervacation?—Idon’tmindwherewego________there’ssun，seaandbeach.A．asifB．aslongasC．nowthatD．inorderthat14．—Iheardyourjourneywasnotverypleasant.—Butforthesuddenrainwe________awonderfultime.A．willhaveB．shouldhavehadC．shouldhaveD．had15．Itwasonthefarm________hespenthischildhood________helearnedhowtogrowvegetables.A．where；thatB．which；whenC．that；thatD．which；whichⅡ.完形填空ThePecanThiefWhenIwassixyearsold，Iwasvisitingmygrandfather’sfarminKansas.Grandpahadsentmeintothe__16__togatherpecansforustoenjoylater.Pecanpickingwasreally__17__workandmylittlebasketwasonlyhalffull.Iwasn’taboutto__18__Grandpadown.Justthensomethingcaughtmy__19__.Alargebrownsquirrelwasafewfeetaway.Iwatchedashepickedupapecan，hurriedtoatreeand__20__inalargeholeinthetrunk.Amomentlaterthesquirrel__21__outandclimbeddowntothegroundtopickupanothernut.Onceagain，hetookthepecanbacktohishidingplace.Notso__22__anymore，Ithought.Idashedovertothetreeandlookedintothehole.Itwas__23__withpecans！Goldenpecanswererighttherefortaking.Thiswasmy__24__.Handfulbyhandful，Iscoopedallofthosepecansintomybasket.Nowitwasfull！Iwasso__25__ofmyself.Icouldn’twaittoshowGrandpaallthepecans.__26__，Iranbackandshouted，“Lookatallthepecans！”Helookedintothebasketandsaid，“Well，well，howdidyoufindsomany？”ItoldhimhowI’d__27__thesquirrelandtakenthepecansfromhishidingplace.GrandpacongratulatedmeonhowsmartI’dbeeninobservingthesquirrelandhishabits.Thenhedidsomethingthat__28__me.Hehandedthebasketbacktomeandputhisarmgently__29__myshoulders.“Thatsquirrelworkedveryhardtogatherhiswinter__30__offood，”hesaid.“Nowthatallofhispecansaregone，don’tyouthinkthatlittlesquirrelwill__31__thecoldwinter？”“Ididn’tthinkaboutthat，”Isaid.“Iknow，”Grandpasaid.“Butagood...
