2021-2022学年人教版九年级全册UNIT13WE'RETRYINGTOSAVETHEEARTHSECTIONA(3A-4C)作业

Unit13We’retryingtosavetheearth!SectionA3a-4c课后跟踪练习Ⅰ.根据句意及首字母提示补全单词Ithinkitis________(残忍的)tokilltheanimals.2017·宿迁MostpeopleinChinacouldn't________(买得起)carstwentyyearsago.Readinginthesunis________(有害的)toyoureyes.Thegovernmenthasmadesome________(法律)toprotectthewildanimals.About70millionsharksaretradedinthis________(行业)everyyear.Ⅱ.根据汉语意思完成句子。他们在山顶发现了一座古老的庙宇。Theyfoundanoldtemple________________________________themountain.她不能再忍受这里的噪声了。Shecan________________standthenoisehere.吸烟对你的健康没有好处。Smokingisnot________________yourhealth.该采取行动了，但我们还没有做好准备。It'stimeto________________，butwehaven'tgotready.不仅他，而且我们也喜欢这首歌。________________he________________wearefondofthesong.III.从方框中选出合适的短语，并用其适当形式填空。payfor,turnoff,beharmfulto,cutoff,sofar,takepartinPleaserememberto____________thecomputerwhenyoudon'tuseit.Itisawaytosaveenergy.2.Wehavelearnedtwelveunits___________.3.Howmuchdidyou___________yourbooksyesterday?4.Haveyouever______________anenvironmentalproject?5.Hehadhisfinger_________inanaccidentatwork.6.Junkfood________________humans'health.IV.单项选择。()1.Iamafraidwecannot________totakeataxi.Let'sgobyundergroundinstead.refuseB.affordC.forgetD.fall()2.ItissaidthatthenumberofforestparksinGuangdong________tomorethan1，000sofar.increaseB.increasedC.hasincreasedD.willincrease()3.Lookatthepicture.ThetopfiveTVplays________init.listB.arelistedC.willlistD.willbelisted()4.—Canyoutellmehowlongyou________theHuaweimobilephone,Mr.Zheng?—Nearlyayear.Itworksverywell.willbuyB.havehadC.haveboughtD.hadhad()5.Afterdinner,heusedto________computergames,butnowhegetsusedto________.play;walkB.playing;walkingC.play;walkingD.playing;walk()6.________Lucy________youcan'tgototheparty.Oneofyouhastostayathometolookafteryourgrandma.Neither;norB.Either;orC.Notonly;butalsoD.Both;and()7.________peoplepreferHUAWEIphones,andabout________ofthemareadults.Thenumberof;four­fifthsB.Anumberof;four­fifthC.Anumberof;four­fifthsD.Thenumberof;four­five()8.—Excuseme.Doyouknow________？—Sorry,Idon'tknow,either.howtocheckoutabookwhenwilltheconcertbeginthatthereisabanknearherehowlongthemeetingwouldlastV.阅读理解Howdoyoudealwithplasticbagsfromthesupermarket?Throwthemawayorrecyclethem?Howabouteatingthem?Thebagsarenoharmfultotheenvironment.Humansandanimalscansafelyeatthem.IndiancompanyEnviGreenhasmadeabagwithnaturalmaterials.Itlooksandfeelsjustlikeplastic,butcanbebrokendown(分解)easily.AshwathHedgewhosetuptheEnviGreencompanyspentfouryearsdoingexperiments(实验)with12naturalmaterials.Theyincludepotatoes,corn,vegetableoilandbananas.Hemadethematerialsintoliquid(液体)andusedtheliquidtomakethebag.AlthoughtheEnviGreenbagismoreexpensivethanacommonplasticbag,ithasmanyadvantages.AccordingtoTheWallStreetJournal,ittakes1，000yearsforcommonplasticbagstobreakdown.ButanEnviGreenbagcannaturallybreakdowninlessthan180days.Italsobreaksdowninlessthanadayinwater,andinlessthanaminuteinboilingwater.Hedgewashappytoshowitinhisinterview;heputanEnviGreenbaginwaterandateitwithasmile.Therearemorethan15，000tonsofplasticwasteinIndiaeveryday.Butonly9，000tonsareprocessed.InChina,3billionplasticbagsareusedeveryday.MaybetheEnviGreenbagcouldbeasolution(解决方法)totheworldproblemofplasticpollution.()1.AccordingtoParagraph2,wecanknowthefollowingEXCEPT________．theEnviGreenbagcanbreakdowneasilytheEnviGreenbagismadefromnaturalmaterialstheEnviGreenbagcanbeeatenbyhumansandanimalstheEnviGreenbagisalittleharmfultotheenvironment()2.Themainideaofthethirdparagraphis“________”.WhatHedgethinksofthenewbagHowHedgemakestheEnviGreenbagWhosetsuptheEnviGreencompanyHowlongittakesHedgetomakethebag()3.TheunderlinedsentenceinParagraph4showsthattheEnviGreenbag________.issafeandcanbreakdownquicklyisusefulalthoughitismoreexpensivelooksandfeelslikeacommonplasticbagwillbeusedmorewidelythanacommonbag()4.TheEnviGreenbagbreaksdownfastestin________．hotairB.coldwaterC.boilingwaterD.naturalair()5.Fromthelastparagraph,wecaninfer(推断)________．allofIndia'splasticwasteisprocessedIndiahasthemostplasticwasteintheworldChinaproducesmoreplasticwastethanIndiatheEnviGreenbagmayhelpsolvetheproblemofplasticpollution参考答案：Ⅰ.根据首字母及汉语