新标准大学英语综合教程2-unit test7答案

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1、PartI:VocabularyandStructureSectionA:Choosethebestwaytocompletethesentences.1.Dogssharemanyofthesame_______ashumansandcaneasilyshowemotion.A.attributesB.distributesC.tributesD.reattributes2.Comparedtomypetfrog,thathorseseemedlikea_______animal.A.minia

2、tureB.typicalC.giantD.short3.Itmightbehardtobelievebutsomeantsare_______ofcarryingmorethantentimestheirbodyweight!A.capableB.capabilityC.ableD.ability4.Overmillionsofyears,animalsonEarth_______andadaptedtomanydifferentenvironments.A.grewB.involvedC.de

3、velopedD.evolved5.Polarbearsareabletostaywarminsuchcoldplacesbecausetheyhaveathick_______offatbeneaththeirfur.A.layerB.coatC.sheetD.stack6.Manyanimals,likechipmunks,liveundergroundinvastnetworksof_______thattheydig.A.holesB.tunnelsC.openingsD.caves7.E

4、lephantsareoftencalled_______animalsbecauseoftheirsize,beauty,andelegance.A.enormousB.magnificentC.interestingD.compelling8.ScientistshavebeenstudyingDNAforyearsbutthey'veonly_______afractionoftheinformationitcontains.A.coveredB.recoveredC.discoveredD

5、.uncovered9.CharlesDarwinsuggestedthathumansandapes,suchaschimpanzees,sharedasimilar_______fromacommonancestor.A.descentB.ascentC.descendentD.descendant10.Thereisafamousstoryaboutalionthathadathornstuckinits_______.A.handB.pawC.hoofD.flipper11.Whenhew

6、antstogooutside,mydogwill_______barkatthefrontdooruntilsomeoneopensit.A.unreliablyB.previouslyC.distractedlyD.repeatedly12.Penguinsmaylookalittlesillywalkingonland,butthey_______throughwaterbeautifully.A.leapB.glideC.squirmD.drape13.Whenatigershowsits

7、teeth,that'san_______thatitisabouttoattack.A.indicateB.indicativeC.indicationD.indicating14.Manyfishswimwithagentleside-to-side_______ofthefinsandtail.A.motionB.motiveC.motorD.motel15.Icouldseeasubtle_______ofsadnessonthefaceofmycatwhenIleftforworkthi

8、smorning.A.clueB.motionC.hintD.gust16.Parrotshavetheabilityto_______thesoundstheyheararoundthem.A.produceB.reproduceC.pronounceD.mispronounce17.Somespeciesofbirdscanflyformilessimplybyglidingona_______ofwind.A.breezeB.motionC.gustD.hint18.Thes