Unit13We’retryingtosavetheearth!SectionA(3a-4c)I.单项选择：（BC层学生必做，A层选做或不做）()1.---Howlong_________thefilm_________?---Forabouttenminutes.A.did;beginB.has;begunC.has;beenonD.has;been()2.---Hello,Jack.Haven’tseenyouforlong.I’mcallingtocheck_______youare.----Verywell.I’mgaldyoucalled.A.howB.whatC.whereD.who()3.They______manyhappyhours______alongthebeachduringthatholiday.A.spend;walkingB.spent;walkingC.cost;walkingD.gave;walking()4.It’s_________toplayontheroad.You’dbetterplayina_________place.A.safe;dangerousB.safety;dangerC.safe;dangerD.dangerous;safe()5.Thechildrenweremade________homeworkfirst.A.doB.todoC.didD.doing()6.Don’tforget___________thetapwhenyoudon’tuseit.A.turnoffB.turnonC.toturnonD.toturnoff()7.Weshouldstoppeople________water.A.towasteB.wastingC.wasteD.fromwasting()8.Intheexam,the__________youare,the___________mistakesyou’llmake.A.carefully;littleB.morecarefully;fewestC.morecareful;fewerD.morecareful;less()9.---CanyoucatchwhatIsaid?---Sorry,Ican__________understandit.A.almostB.hardlyC.nearbyD.never()10.---Ithinkrecyclingbooksandpaperisuseful.----____________________A.IquiteagreeB.IhavenoideaC.Weshouldn’tusesuchthings.D.That’sagoodidea.II.根据句意、汉语意思或首字母等提示补全单词。（BC层学生必做，A层选做或不做）1.She’sgoingtoworkinthes_________________partofChinanextyear.2.Theycan’tfinishtheworkontimew_________________yourhelp.3.Chinaisfacingmoreandmore____________________（环境的）problems.4.Sharksmay___________________（消失）onedayifwedon’tdosomething5.---Anumberofstudents_____________inthedininghall.---Letmecount.Thenumerofstudents____________about400.6.Shecan’ta______________togoonaholidaybecauseshelostherjoblastmonth.7.Thefilm_______________（工业）oftheUSAisfamousaroundtheworld.8.Weshouldsetnew_____________（法律）,openmorenationalparks,plantmoretressandstoppollution.9.Weallthinkthismethodisvery_________________（残忍的）.10._________________（科学的）farmingisimportant.Nowmoreandmorefarmersareinterestedinit.III.根据汉...
