高中英语必修5unit 3 science versus nature 同步练习2

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1、Unit3Scienceversusnature同步练习2I.完形填空（30分）HereinAlaska,thewolfalmostdisappearedafewyearsago,becausehunterswerekillinghundredsofthemfor1.However,lawswerepassedtoprotectthewolves2thesportsmenandalsothepeoplewho3theanimalsforfur.Sothewolfpopulationhasgreatly4.Nowthereareso5wolvestha

2、ttheyaredestroyingtheirown6supply.Awolfnaturallypreys(捕食)onanimalsinthe7family.Peopleinthewilderness(荒原)alsohuntdeerforfood.Manyoftheanimalshavebeendestroyedbythevery8recentlyandbychangesinthewilderness9life.Whenthedeercan’tfind10food,theydie.Ifthewolves11tokilllargenumbersofde

3、er,theirpreywill12someday.Andthewolveswill,too.Sowemust13thecycleoflifeinthewildernessto14theecology.Ifwekilledmorewolves,wewould15themandtheirpreyfromextinction(绝种).We’dalsosavesome16animals.Inanothernorthernstate,wolvesattackedcowsandchickensfor17.18wanttheUnitedStatesgovernm

4、enttosendateamof19tostudytheproblem.Theybelieveitisnecessarytokillwolvesinsomeareasandtoprotecttheminplaceswherethereisa20wolfpopulation.1.A.funB.foodC.sportD.interest2.A.forB.ofC.fromD.about3.A.takeB.catchC.findD.play4.A.increasedB.reducedC.developedD.advanced5.A.manyB.fewC.mu

5、chD.little6.A.animalB.plantC.foodD.water7.A.catB.dogC.deerD.cows8.A.hotsummersB.warmspringsC.coolautumnsD.coldwinters9.A.animalB.plantC.foodD.cold10.A.goodB.muchC.moreD.enough11.A.startB.stopC.decideD.continue12.A.disappearB.reduceC.increaseD.appear13.A.keepB.changeC.renewD.for

6、m14.A.changeB.remainC.balanceD.keep15.A.helpB.killC.makeD.save16.A.wildB.farmC.usefulD.field17.A.furB.sportC.foodD.fun18.A.FarmersB.ScientistsC.BiologistsD.Fishermen19.A.officialsB.doctorsC.teachersD.biologists20.A.smallB.largeC.increasingD.naturalII.阅读理解(30分)(A)Animalscannotbe

7、consideredequaltohumanbeingsbecausetheydonothavethesameintelligence.Therearephysicalactsthatanimalssharewithpeople,butanimalsperformtheseactsinstinctively;whereas,humanbeingsnormallyneedtolearnthem.Oneinstanceofthoseisthewayanimalscarefortheiryoung.Amothercatwillinstinctivelybe

8、ginlickingthebabykittensassoonastheyareborn.Thehumanmo