Unit 13 We are trying to save the earth. Section A 课后作业（含答案）人教版九年级全册

Unit13WearetryingtosavetheearthSectionA一、单词拼写与运用根据句意完成已给出首字母或汉语提示的单词，使补全后的句子意思通顺、语法正确。1.—Howmuchisyourcoat?—Itcme200yuan.2.Weshouldtrytostheearth.3.AlthoughJennyisu,shehasakindandbeautifulheart.4.Peoplethrowlintotheriverandmakeitreallydirty.5.Itwasherdreamtoenterthefilm行业）whenZhaoLiYingwasveryyoung.6.Canyouholdthe（底部）oftheladderforme?7.Thereissomeinformationaboutthepeoplewhoare（残酷的）toanimals.8.Thetallplayerhasa(n)（有利条件）inabasketballgame.二、语法填空阅读下面短文，在空白处填入一个适当的单词或用括号内单词的正确形式填空。AManypeopleliketokeepdogsastheirpets.Butdoyouknowdogswerewild（野生的）animalslong,longago?Thefirstwilddogs1(train)byhumansabout10,000yearsago.Thesefirst"dogs”werenotlikewhatwehavenow.Theymayhavebeensmall2(wolf).Thesedogsoftencamenearhumans3(steal)somefood.Someoftheyoungdogswereadopted（收养）4peopleandgrewupwiththem.Thedogshelpedthemtohunt（狩猎）.Theyhelpedkeeppeoplewarmoncoldnights.Soitwas5(use)toraisethedogs.BPandasarebeautifulblackandwhiteanimals.Theyeatbambooshootsand6(leaf).Babypandasspendalotoftime7(drink)theirmum'smilk-upfourteenhoursaday!Femalegiantpandashaveonlyoneortwobabiesatatime.Whenthebabiesareborn,theylikelittlewhite8(mouse).Thereareonlyaboutathousandpandasintheworldnow,thenumber9(get)smallerandsmallerbecausemanyoftheirlivingareasarebecomingfarmland.Iffarmerskeeptakingtheland,pandaswillhavenowheretolive.Also,peoplehuntthemfortheirfur.10thiscontinues,thentherewillbenopandasintheworld.三、完形填空阅读短文，从方框中选择恰当的词填空，每空一词。方框中有两个词为多余选项。why,harmful,danger,their,realize,public,them,because,ifManyhaveheardofsharkfinsoup.ThisfamousandexpensivedishisespeciallypopularinsouthernChina.Butdoyou1thatyou'rekillingawholesharkeachtimeyouenjoyabowlofsharkfinsoup?Whenpeoplecatchsharks,theycutoff2finsandthrowthesharkbackintotheocean.Thisisnotonlycruel,butalso3totheenvironment.Withoutafin,asharkcannolongerswimandslowlydies.Sharksareatthetopofthefoodchainintheocean'secosystem.Iftheirnumbersdroptoolow,itwillbring4toalloceanlife.Manybelievethatsharkscanneverbeendangered5theyarethestrongestintheirfoodchain.Butinfact,around70millionsharksarecaughtandtraded.inthisindustryeveryyear.Thenumbersofsomekindsofsharkshavefallenbyover90percentinthelast20to30years.Environmentalprotectiongroupsaroundtheworld,suchasWildAidandtheWWF,areteachingthe6about“finning".Theyhaveevenaskedgovernmentstodeveloplawstostopthesaleofsharkfins.Sofar,noscientificstudieshaveshownthatsharkfinsaregoodforhealth,so7eatthem?Helpsavethesharks!四、阅读理解阅读下面的短文，从每小题A、B、C、D四个选项中，选出能回答所提问题的最佳答案。AOnefreshsunnyday,whileIwasswimminginthewater,Ifeltsomethingspecialgoingthroughmygills（腮）.Itwasadifferentkindofwater.Ialsofoundmanyofmyfriendsbecamesick.Someofthemweredying.IwasthinkingaboutwhatIshoulddotosavemyfriends,soIdecidedtodosomeresearchformyunderwaterlife.Myresearchstarted.Atfirst,Inoticedthereweremanybottles,cansandotherkindsofrubbishinthewater.ThenIwenton...IgotcloserandthenItastedmanydifferentkindsofliquid（液体).Tomysurprise,Inoticedamanpouringsomeliquidintothewater.Othersalsosawhimdoingsoandtheydecidedtofollowhim.Ihatedit!IwishIcouldhavetoldthemthatitwaskillingus!Ithinkitissostupidforpeopletodothistotheearththattheyarelivingon!Ican'tunderstandwhytheyaredoingthis.Humansshouldstopthrowingwasteintothelakesorrivers.Iwanttohaveanormallifewithmyfriends.Peopleshouldstopbeingsoselfishandcareabouttheenvironment.Iftheydothat,everyonewillbefineandwillhavenothingtoworryabout.Isuggesttheyfollowmywords.Ifso,Ibelieveeveryonewillbeabletoliveahappylife.1.Someofthewriter'sfriendsweredyingbecauseofpollution.A.airB.noiseC.waterD.light2.Whatdidthewriterfind?eeibwolebnsA.Amanwasfishingintheriver.osdmimisdoB.AmanwasswimminginthewateroloorgorbC.Amangotsickbecauseofthewater.dvsD.Amanwaspouringsomeliquidintothewater.3.Howdoesthewriterfeelinthesecondparagraph?A.Relaxed.B.Angry.C.Happy.D.Proud.4.Whatdoestheunderlinedword“selfish”meaninChinese?A.自豪的B.自私的C.奇怪的D.完美的5.Whatdoesthespeakersuggestinthelastparagraph?A.Humanbeingsshouldcareabouttheenvironment.B.Humanbeingsshouldliveinthewater.C.Humanbeingsshouldstopscientificresearch.D.Humanbeingsshouldhelpotherpeople.BHundredsofyearsago,lifewasharderthanitistoday.Peopledidn'thavemodernmachines.Therewasnomodernmedicine,either.Lifetodayhasbroughtnewproblems.Oneofthebiggestproblemsispollution.Waterpollutionhasmadeourriversandlakesdirty.Itkillsourfishandpollutesourdrinkingwater.Noisepollutionmakesustalklouderandbecomeangrymoreeasily.Airpollutionisthemostseriouskindofpollutiontoalllivingthingsintheworld.Cars,planesandfactoriesallpolluteouraireveryday.Sometimesthepollutedairissothickthatitislikeaquilt（被状物）overacity.Thiskindofquiltiscalledsmog（雾霾）.Manycountriesaremakingrulestofightpollution.Factoriesmustnowcleantheirwaterbeforeitisthrownaway,andtheymustn'tletdirtysmokegointotheair.Weneedtodomanyotherthings.Wecanputwastethingsinthedustbin（垃圾桶）anddonotthrowthemontheground.Wecangotoworkbybuswithourfriendsorinthesamecar.Iftherearefewerpeopledriving,therewillbelessairpollution.Rulearenotenough.Everypersonmusthelptofightpollution.Hundredsofyearsago,lifewasmuchharderthanitistodaybecause.A.therewerenotmodernmachinesB.therewasnomodernmedicineC.bothAandBD.therewerenotmanypeople.7.ThemostseriouskindofpollutionisA.noisepollutionB.airpollutionC.waterpollutionD.A,BandC8.FactoriesmustcleantheirwaterA.afteritisthrownawayB.whenitisthrownawayC.beforeitisthrownawayD.beforeitisused9.Iftherearefewerpeople,therewillbelessairpollution.A.drivingB.goingtoworkbybusC.goingtoworktogetherD.walktowork10.Fromthepassage,weknowthatA.afewyearsago,therewasnotanysmogatallB.todaypeopledon'thavetotalktoeachotherloudlyC.Wecandrinkwaterfromthepollutedriversandlakes.D.Peoplearemakingrulesinorderingtofightpollution.五、阅读表达阅读短文，根据要求完成文后的题目。Animalsarepeople'sfriends.Butmanyofthewildanimalsarefacingthedangerofdyingout.TheSiberiantigerisoneofthem.SiberiantigercanbefoundforestsinpartsofSiberianandNorthernChina.Thetigersarebecomingextinct（灭绝）becausepeoplehurtmanyofthemandaredestroyingtheirlivingplaces.AnotheranimalindangeristheTibetanantelope（藏羚羊）.Intheearly1990s,thereweremillionsofTibetanantelopesinChina,butbythe1990s,thenumberofthemhadfallentoabout50.000.Peoplehunttheantelopesfortheirwool.Thewooloftheantelopeissoft,lightandwarm,anditisveryexpensiveallovertheworld.Hunterscanmakealotofmoneybysellingtheirwool.TheChinesepeoplehavebeguntoprotecttheanimalsandseemtobewinning.NowthenumberoftheTibet-anantelopesisrising.It'simportanttoprotectthewildanimals.NowmanywildzooshavebeenbuiltinChina.Inthezooswecanseetheanimalswehaveheardofbuthaveneverseen.Ithinkwecanmakefriendswiththembytakingcareofthem.1.WheredotheSiberiantigerslive?(nomorethan11words)2.WhyaretheSiberiantigersbecomingextinct?(nomorethan12words)