Unit 5 Canada-The True North Language points 课时作业（1）-高中英语人教新课标必修三

Unit5Canada-TheTrueNorthlanguagepoints课时作业（1）一、阅读理解Scientistshaveidentifiedtheorderofthegeneofthegiraffeforthefirsttimetohelpexplainhowthetallestanimalsonearthdevelopedtheirremarkablylongnecks.Beingagiraffeisnoteasy.Topumpbloodtwometersupfromthechesttothebraincallsforapowerfulheartandtwicethebloodpressureofothermammals.Giraffesalsoneedspecialsafetysystemtoletthembenddownforadrinkandraisetheirheadsagainwithoutfeelingdizzy.Theanimals'uniquebodystructurehaslongbeenapuzzleforbiologists,includingCharlesDarwin.Now,bycomparingthegeneofthegiraffewithitsclosestrelative,theshort-neckedokapi,scientistshavesolvedpartofthepuzzlebystudyingchangesinasmallnumberofgenesresponsiblebothforregulatingbodyshapeandcirculation.Thissuggeststhatthedevelopmentofalongneckandapowerfulheartwenthandinhand,drivenbyarelativelysmallnumberofgeneticchanges.Theinterpretationofthegeneticfactorsbehindthegiraffe'sremarkableheartsystemcouldalsobeinstructiveforhumanhealth,sincetheanimalsappeartoavoidthekindoforgandamageoftenfoundinpeoplewithhighbloodpressure.Whygiraffesdevelopedtheirlongnecksremainsopen,however.Theapparentlyself-evidentideawastoreachever-higherfoodsupplies,butithasbeenchallengedinthepast20yearsbyacompetingbeliefthatitisactuallyduetocompetitionamongfightingmalesforfemales.Unlikelong-neckedbirds,whichhaveadditionalvertebrae(椎骨),giraffeshavethesamesevenvertebraefoundinallmammals,althoughtheirsaregreatlyextended.1.Astrongheartisveryimportantforagiraffebecauseit____.A.pumpsbloodtothebrainhighaboveitsbodyB.keepsthebloodpressureatanormallevelC.helpsthegiraffefindadrinkatlowerplacesD.keepsthegiraffesafeindifferentenvironments2.Scientistscomparethegeneofthegiraffeandtheshort-neckedokapibecausethelatter___.A.hasaquitespecialbodystructureB.isapuzzleworthfurtherstudyC.isinthesamefamilyasthegiraffeD.hasgonethroughfewgeneticchanges3.Whichpossiblycausedthegiraffetodevelopalongneck?A.ItsfavoritefoodathighplacesB.ItsattemptstoattractfemalesC.Itsneedtoavoidorgandamage.D.Itsgreatly-extendedvertebrae4.What'stheauthor'spurposeofwritingthispassage?A.Tointroduceanewfindingofscience.B.Toexplaingeneticchangesinanimals.C.Todescribegiraffesbodystructure.D.Tochallengeabeliefoftwentyyears.二、七选五阅读It'ssometimeshardtounderstandateenager.It'sevenharderifateenagerdoesn'tagreewithyou.__1__Listentowhattheteenagerhastosay.__2__Whileyoumaynotentirelyagreewithwhathe'ssaying,thetensionwillbelessenediftheteenagerfeelslikeyouarelisteningandtryingtounderstandhim.Also,hemightreturnthefavorandgiveyouthechancetotalkaswell.It'sbesttohaveaconversationwherebothofyouropinionsmatterratherthanfightandpossiblyhurteachotherintheprocess.Understandthatwhiletheteenagermayappeargrownupandperhapsevensoundmatured,hismindhasnotfullydeveloped,andhecannotthinklikeanadultallthetime.__3__However,thisdoesn'tmeanyou'recompletelyrightorhedeservestoberidiculedortreatedlikeachild.__4__However,rememberthattheteenagershouldunderstandwhen“no”is“no”.Avoidbringingupacompromiseeverytimeyoudisagreeonsomething.Thismightteachhimthathecanalwaysgetawaywithwhathewants,wheneverhewantsit.Iftheconversationlaunchesintoanargument,stopit.Tellhimthatyoubothneedtocalmdownandthinkclearlyortheproblemwillneverbesolved.Ifherefusestolistentoyouandcontinuesarguing,stepoutoftheroomandallowtimeforbothofyoutosettledown.Donotscoldhimorshoutback.Yourwordswillpossiblybelostontheteenagersinceyoubotharetooangrytolistentoeachother.__5__A.Hestillneedstolearn,andhedoesn'tknoweverything.B.Avoidhavingabadtone,includingaccusationsinyourwords.C.Thisarticletellsyouhowtodisagreewithateenagerinakindmanner.D.Bringupthetopicafterawhileandmakesureyoulistentoeachotherpatiently.E.Peoplelikebeinglistenedto,sogivehimthechancetoexpresshisopinion.F.Comeupwithacompromiseifthesituationallowsone.G.Findthegoodpointstheteenagerhasandmentionthenegativepointsaswell.三、短文改错Wearewhatweeat.Soitislessimportanttoformgoodeatinghabits.However，badeatinghabitsexistedamongstudents.Someofusoftengotoschoolwithoutbreakfast，andsomeareparticularlyaboutfood，forexample.Tokeephealthy，weshouldhavehealthydiet，whichgenerallyincludeproperamountsoffish，meat，fruitaswellasthemainfood.Besides，we'dbetterhavemealregularly.Weshouldtrydevelopgoodeatinghabitstobuildourselves，preparingourselvesforwhichourfuturemayrequire.Onlyinthiswaycanwehaveenoughofenergytostudyorlivebetter.四、读后续写阅读下面材料，根据其内容和所给段落开头语续写两段，使之构成一篇完整的短文。续写的词数应为150左右。AdesperatecallcameintoJimmyGilleece’sbar.Anewlymarriedwomanwhohadspenttheafternoonathisdive(潜水)beachbarcouldn’tfindherwallet.Shedidn’tcareaboutherID,creditcards,or$150incash—butherweddingringwasinside.Gilleecedidn’tliketheideathatstealingcouldhaveoccurredathisplace,sohesetouttofindthewallet.Hespenthourslookingthroughfootage(片段)from16differentsurveillancecameras(监控摄像头),watchingthewoman’severystepinthebar.At4pm,thewomanwenttositonabenchoutsidethebarandleftwhenhertaxiarrived.Withinminutes,ayoungmaninahoodie(连帽衫)approachedthebench,putsomethinginhispocket,andwalkedoff.Gilleecepostedapictureonthebar’sFacebookpage.Withinhours,Gilleecegotatextfrom17-year-oldRiversPrather,who’dheardaboutthepostfromhissister.PratherAdmittedhavingtakenthewalletandtoldGilleecehe’ddoneitbecausehe hadn’teatenintwodays.Hesaidhesawtheringbutthoughtitwasfake(假的),sohetookthemoneyandthrewthewalletoffthepublicdocks(码头)intotheocean.Thenheboughtasandwich.Gilleece,unsurewhetherhebelievedPrather,toldtheteentomeethimatthedocks.There,theygottotalking,andPrathertoldhimthathewasn’tgettingalongwithhisfamilyandhadbeenlivinginthewoodsforaweek.Gilleece,afatheroftwo,lookedupanddownPrather—hissmallfigure,hisredcheeks—andsawhimforwhathewas:moreofakidthanacriminal.Butthepolicewerealreadyonthecase,andbecauseofthemissingring,Prathercouldbefacingcrimecharges.“Hewouldbegoingtoprison,”Gilleecethoughttohimself.“Ihadtohelphimsomehow.”So,GilleecehiredtwodiverstosearchthewaterswherePratherhadthrownthewallet.Para1WhenGilleeceandPratherarrivedatthedocksatnoonthenextday,apolicemanwasalreadywaitingthere.______________________________________________________________________________________________________________________Para.2Justthenadiverappearedoutofthewater.________________________________一、阅读理解1.A2.C3.B4.A二、七选五阅读1.C2.E3.A4.F5.D三、短文改错Wearewhatweeat.Soitislesseq\o(less,\s\do10(very))importanttoformgoodeatinghabits.However，badeatinghabitseq\o(existed,\s\do10(exist))amongstudents.Someofusoftengotoschoolwithoutbreakfast，andsomeareeq\o(particularly,\s\do10(particular))aboutfood，forexample.Tokeephealthy，weshouldhaveeq\o(∧,\s\do10(a))healthydiet，whichgenerallyeq\o(include,\s\do10(includes))properamountsoffish，meat，fruitaswellasthemainfood.Besides，we'dbetterhaveeq\o(meal,\s\do10(meals))regularly.Weshouldtryeq\o(∧,\s\do10(to))developgoodeatinghabitstobuildourselves，preparingourselvesforeq\o(which,\s\do10(what))ourfuturemayrequire.Onlyinthiswaycanwehaveenoughofenergytostudyeq\o(or,\s\do10(and))livebetter.四、读后续写WhenGilleeceandPratherarrivedatthedocksatnoonthenextday,apolicemanwasalreadywaitingthere.Gilleecetoldhimthathehadtowait.Meanwhile,thediversjumpedintothewater,beginningsearchingf