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Unit3Conservat ion北师大版
（2019）选择性必修第LESSON2第一部分基础知识练I.单词拼写（消费者）.
1.Well turnout moreproducts tomeet theneed ofour（浪费的）
2.His grandmotherthinks ittoo forhim toorder themeal in the hotel.（包裹）
3.Please thismobile phoneup forme.Til takeit.（交通系统）
4.It isso clearthat hasbeen greatlypromoted in our country.（现实的）
5.Youll haveto makemore friendsin yourlife,not justonline friends.（创新的）
6.Sure,methods ofthinking willoffer youmore creativeideas.（意识至）
7.She maynot beU of the dangershe isin.（攵藏）
8.Li Mingsfather hasa largeU ofstamps andcoins.（焦急的）
9.Mother isvery whenshe heardthat herdaughter wasill atschool.（筷子）
10.We makeuse ofin Chinainstead ofknife andfork onthe table.IL单句语法填空
1.We setto findthe truthbehind themystery.（）
2.His companyoffers aflexible packageservice for the foodindustry.（）
3.A fallin unemploymentwill helpto restoreconsume confidence.（）
4.The wholeprocess iswaste andinefficient.（）
5.He foundtwo pots,each wrapin newspaper.（）
6.Universities inthis cityare usuallyaccessible bypublic transport.
7.The studentsneed tobe awarethe importanceof Englishlearning.（）
8.The paintingcomes fromhis privatecollect.（）
9.The bagis reuse.It canbe usedmany times.（）
10.If youreworried aboutyour health,share youranxious withyour doctor.第二部分能力提升练I.完成句子（着手修理）
1.He hiscar afterbreakfast.（以便）
2.You mustspeak louderwe canhear youclearly.（已经意识至）
3.1U therealistic significanceof thework.（克月艮）
4.1will myshortcomings.（结果）
5.Every timethey wentdancing theyin abad mood.II.语法填空主题人与自然（动物保护）话题动物园里的动物体裁说明文建议用时T（捕食者）With keepersto feedthem,vets tocure them,and nopredators to eat them,animals in（）a zoousually livemuch]long thananimals in the wild.Zoo lifeis safe,but itcan alsobe boring.In the wild,survival is2full-time job,consisting offinding food,taking careof babies,and steering（）clear of all thethings thatmight wanttoeatthem.3compare withtheir wildcousins,says onezoo vet,zoo animalsare unemployed.Scientists4observe animalsin theirnatural environmentsrealized thatsome zooanimals weredoingall sortsof5nature thingsthose speciesin thewild dontdo.Tigers pacedback andforth6end.Elephants movedtheir headsup anddown.These aresigns ofboredom andstress.And scientists havelearned thatbeing stressedout canactually makeanimals andpeople sick.Giving zooanimals foodand shelter7be notenough tokeep themhealthy.They alsoneedsomething8do.These days,problems likepacing areless commonbecause zoostry tomake lifeinterestingfor animalsthat livethere,with habitats,games,and eventoys9encourage naturalskills andbehaviors.These thingsare justas importantfortheanimals goodhealth10a properdiet ora visitfromthe vet.第三部分阅读拓展练L阅读理解主题人与自然人与动植物话题蜂鸟研究体裁记叙文建议用时，6Caleb Arnoldloves birds,especially hummingbirds.The7-year-old boyknows alot abouthisfavorite animal.They pollinate授粉plants,and theyrepretty andsmall,“he says.But there9s onething Caleb didnt knowhummingbirds seea widerrange ofcolors thanwe do.It makessense thatCalebdidntknow this.Few peopledid fbrsure,until June15,2020,whenresearchers publisheda reportin Proceedingsof theNational Academyof Sciences.It confirmedthe factthatscientistshavelong suspected.Birds areexperiencing amore colorfulworld thatis aboveour own.Ateam ofscientists conducteda three-year experimentto findout ifhummingbirds areable totell apartcolors that lookthe sameto humans.To understand the experiment,its importantto knowhow colorvision works.There arethree types锥细月包of tinycolor-sensitive conesin thehuman eye.Birds,and someother animals,have afourth.紫夕卜线的This meansthey canalso seeultraviolet colors.The ultravioletcone typeallows birdstosee combinationcolorsthathumans cant,like ultravioletgreen andultraviolet red.Biologists studyingbirdshave supposedthat birdscan seethese,but itsbeen challengingto testthis idea.Thafs exactlywhat theteam did.They puttwo birdfeeders inthewild.One containedordinarywater.The othercontained sugarwater.Both feedersheld aspecially designedLED lightstick-sort ofabird-vision lighttube thatchanged colors.If weare shownthe ultravioletgreen tubeandthegreen tube,theyd bothjust lookgreen tous.But thehummingbirds sawthe difference.They couldeven tellaparttwo shadesof ultravioletred.The scientistsobserved thatthe birdswere ableto usethe colorsof thelightsto findthe sweetwater.Caleb isglad thatscientists wantto betterunderstand birds.“GoodJ hesaid,after hearingthe news.Theyre partof nature.”
1.What isthe purposeofthefirst paragraphA.To introducehummingbirds.B.To explaina naturallaw.C.To leadinthetopic ofthe text.D.To describea boywho lovesbirds.
2.What isunknown tomost peopleabout hummingbirdsA.They lookvery beautiful.B.They areofasmall size.C.They arehelpful toplants.D.They seemore colorsthan humans.
3.What isParagraph3mainly aboutA.The reasonfbr birdsbetter colorvision.B.The challengesbiologists face.C.Combination colorsunseen byhumans.D.The experimentto testultraviolet colors.
4.How didhummingbirds findthe waterthey likedA.By tastingthe water inthetwo containers.B.By recognizingthe lightcolors onthe feeders.C.By smellingthe waterin differenttubes.D.By tellingapart thedepth ofwaterindifferent feeders.IL完形填空主题人与自然（人与动物）话题宠物狗体裁记叙文建议用时，12一By thetime Iwas12,my familyhad ownedmany typesof petsa rabbit,countless fish,and evenbirds.But Ialways]a puppy.So whenI returnedfrom sleep-away campin sixthgrade andwas2by alittledog namedTyler,it wasquite possiblythe3day ofmy life.A coupleof yearswent byand Tylerwas thepicture ofperfect4,until wecame homefrom afamilyvacation tofind himacting unlikehis5happy self.He hadno6in playingor eating,and hewas losingtonsof hairand weight.（肿瘤）Filled with7,we rushedhim tothe doctorsto runtests.A terribletumor wasfoundbetween hisheart andlungs.Every doctorwe spoketo8he shouldbe putto sleep.We weretold that9weyears.However,we decidednot togive upthis little10thing.An operationwas performedonhim andhis healthwas11improving,but westill couldnt12what thedoctors hadtoldus,“Only twoto threemore years...“So withthat inmind,we13him likea prince.Wetried totreat hiscancer,he wouldonly liveanother twoto threelovedhim likeno puppyhad14been lovedbefore-at leastinourminds.Tyler isturning11years oldthis year.The only15doctors haveoffered tous isthat heisstill alivebecause ofthe strongtie hehas withmy family.
1.A.longed forB.searched forC.cared aboutD.talkedabout
2.A.hated B.welcomed C.frightened D.stopped
3.A.rarest B.saddest C.busiest D.happiest
4.A.honesty B.bravery C.health D.strengthB.true C.ordinary D.usual
5.A.commonB.interest C.fun D.choice
6.A.troubleB.surprise C.doubt D.worry
7.A.pityB.realized C.ordered D.admitted
8.A.suggestedB.now thatC.even ifD.as longas
9.A.in caseB.cute C.sleepy D.lonely
10.A.hopelessB.suddenly C.properly D.
11.A.frequentlysuccessfullyB.stand C.understand D.learn
12.A.forgetB.treated C.educated D.accepted
13.A.respectedB.already C.ever D.still
14.A.neverB.instruction C.introduction D.translation
15.A.explanation参考答案第一部分基础知识练
1.单词拼写
1.consumers
2.wasteful
3.wrap
4.transportation
5.realistic
6.innovative
7.aware
8.collection
9.anxious
10.chopsticksIL单句语法填空
1.out
2.packaging
3.consumer
4.wasteful
5.wrapped第二部分能力提升练
6.transportation
7.of
8.collection
9.reusable
10.anxiety
1.完成句子IL语法填空
1.set outto repair
2.so that
3.have becomeaware of
4.do awaywith
5.end up
2.longer
2.a
3.Compared
4.observing
5.unnatural第三部分阅读拓展练
6.endlessly
7.is
8.to do
9.that/which
10.asL阅读理解I.C2,D
3.A
4.BII.完形填空I.A
2.B
3.D
4.C
5.D
6.B
7.D
8.A
9.C
10.BII.D
12.A
13.B
14.C
15.A。
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