Unit 5 A delicate world Period 3 同步课后练习 2022-2023学年高中英语外研版2019选择性必修第二册

Unit5AdelicateworldPeriod3一词形转换和动词的形式变换(用所给词的正确形式填空)1．Ifanalarmgivesyouthatfeelingof(secure),thenit'sworthcarrying.2．(rare)doweseethemnowadays,soitisimpossibletoaskthemtohelpus.3．IpassedbyJoanquicklywithout(greet)her,pretendingnottoseeher.4．TheGreatWallwasreconstructedintheQingDynastytoguardagainst_____(invade)bythetribesfromthenorth.5．Theorganizationwassetuptopreservethe(endanger)speciesfromdyingout.6．Withherluggageinherhands,thegirlstoodlookingroundinalldirections,but(apparent)noonehadcometoherassistance.7．Themomentyougetontheairplane,startadjustingyour(biology)clocktothedestination'stime.8．(2020·全国卷Ⅱ)Whiletheyoungergenerationsprefertocommunicate______(visual),forthoseusedtoworkingwithtraditionaltoolslikeemail,itmayfeellikealearningcurve(曲线).二固定用法和搭配(空白处填入一个适当的单词或括号内单词的正确形式)1．Schoolactivitiesareusuallyconsideredagoodway(make)newfriendsanddevelopnewinterests.2．IntheWesterncountries，“V”oftenstandsvictory.3．comparison,thissetofcostumeislowinprice.4．Itishighlynecessarytosecuretheinfluenceofthenewtypeofvirus.5．Thenewteachingbuildingisnamedthedonor.6．Weofferanexcellenteducationtoourstudents.return,weexpectstudentstoworkhard.7．Thelandisknownahistoricsitewithbeautifullycolouredwalls,onwhichtheeventsofthepastarepainted.8．Whendrivingonhighways,thedrivermustcontrolhisorherspeedtherangeofspeedlimits.9．Morethanhalfoftheparticipantssaidthatgettingmarriedwasnotanimportantcriterionbecominganadult.10．Scientistshavesaidisrareforicebergstobeseensofarnorth.三完成句子/句型转换/一句多译1．我很高兴代表我们学校向大家介绍这些活动。,_I'mgladtotellyousomethingabouttheseactivities.2．需要采取措施保护这些必需品不被恐怖分子抢劫。Somemeasuresareneededto．3．Sherarelyrequestedhelpbutthiswasamatterofurgency.→butthiswasamatterofurgency.4．Comparedwithotherstudents,Mikeismoremature.→otherstudents,Mikeismoremature.5．他对父母对待和教育他的方式很满意。①Hewassatisfiedwith．(定语从句)②Hewassatisfiedwith．(不定式)四课文语法填空ShennongjiamadeitontotheUNESCOWorldHeritageListin2016.Itisneitheritsforests1.itswildmanthathasbroughtthestatus.ItisbecauseShennongjiameetstwo2.(criterion)requiredbythelist.Itcontainsanaturally­balancedenvironmentwithvariousspecies,3.___scientistscanobservethemintheir4.(biology)andecologicalprocesses.5.(addition),Shennongjiaisalsooneofthemost“complete”naturalareasintheworld,withawidevarietyofspecieslivingin6.sameplace.Inordertoprotectthewildanimals,scientistsbraveheavysnow7.(supply)foodtotheanimalshere.Apartfromthat,thelocalpeopletakethingsfromnaturewithout8.___(cause)damage.Thatiswhythewildanimalsandthelocalpeoplecancoexistinharmony9.eachother.AllthosewellexplainwhyShennongjia10._(deserve)itsplaceontheUNESCOWorldHeritageList.Ⅰ.阅读理解AAirpollutionmaybecausingbaldness,scientistshaveshownforthefirsttime.Anewstudyfoundthatfineparticulatematteremittedbycarswoulddamagetheskinthatholdshairfollicles(毛囊)inplace.Aseriesoflaboratorytestsonhumancellsshowedthatlevelsofthecrucialproteinsneededforhairtogrowandberetaineddecreasedwhentheywereexposedtopollutionparticles.Whilethereisagrowingbodyofevidenceshowinghowthesetinyparticlescandamageinternalhealth,includingbyenteringthebloodstreamthroughthelungs,thisisthefirsttodemonstratesucharisktothesurfaceofthebody.Thestudywasconductedbyexposingcellsfromthehumanfollicledermalpapillacells(HFDPCs)tovariousconcentrationsofPM10­likedustanddieselparticles.After24hourstheresearchersperformedaprocess,knownaswesternblotting,todetectthelevelsofspecificproteinsinthecells.TheresultsshowedthatthepresenceofPM10anddieselparticlesdecreasedlevelsofB­catenin,theproteinresponsibleforhairgrowth.Thestudyalsorevealedthatthelevelsofthreeotherproteins—cyclinD1,cyclinEandCDK2,whichareresponsibleforhairgrowthandhairretention,weredecreasedbyPM10­likedustanddieselparticlesina“dose­dependent”manner.DrHyukChulKwon,wholedthestudyattheFutureScienceResearchCentre,said,“Whilethelinkbetweenairpollutionandseriousdiseasessuchascancerandlungdiseasesiswellestablished,thereislittle­to­noresearchontheeffectofparticulatematterexposureonthehumanskinandhairinparticular.OurresearchexplainsthemodeofactionofairpollutantsonHFDPCs,showinghowthemostcommonairpollutantsleadtohairloss.”SourcesofPMincludetheburningoffossilfuels—petrolanddiesel,aswellasothersolidfuels,andotherindustrialactivitiessuchasbuilding,miningandthemanufacturingofbuildingmaterialslikebricks.“Whileitisdifficulttoescapefromthesurroundingpollution,limitingthetimeforwalkinginbusystreets,especiallyduringrushhours,shouldhelpreduceexposure，”saidDrKwon.“Ifyouareexercisingoutdoors,trytodosoinareasthatarelesspollutedanddonotspendtoomuchtimewaitingattraffichotspotssuchastrafficlights.”1．Whatdidthenewstudyfind?A．Airpollutioncandogreatharmtoourlungs.B．Thecolorofourskincanbeinfluencedbyairpollution.C．Seriousairpollutioncanprobablypreventhairfromgrowing.D．Airpollutioncanaffecthairgrowthbyenteringthebloodstream.2．Whatiswesternblottingusedtodo?A．Todiscovertheproteinhelpfulforhairgrowth.B．Toshowtheproteincontentinthecells.C．Tocomparedifferentproteinsinthecells.D．Toanalyzethecompositionofhaircells.3．WhatcanwelearnfromDrHyukChulKwon'swords?A．Hisnewresearchissuperiortopreviousresearch.B．Theresearchheconductedisreallyofgreatimportance.C．Theresultsofhisnewresearchneedtobefurtherimproved.D．Alinkbetweenairpollutionanddiseasesneedstobeestablished.BNowadays,we'renoweatingtwiceasmuchfishaswewere50yearsago.Whilethisgrowingdemandforseafoodisgoodforourhealth,it'sharminglifeintheoceans.Almost60percentofglobalfisharefullyexploited(开发)and30percentareactuallydisappearing.By2050,withapredictedhumanpopulationofaround10billionandclimatechangedecreasingfishpopulationsatarateof20to30percentforevery1°Criseinseatemperature,wemaybeseekingnovelfishsources.Butfearnot.Asolutioncouldbeinsight,sayresearcherswhohavefiguredouttheareaofoceansuitableforaquaculture(水产养殖).Thestudy,ledbyRebeccaGentryoftheUniversityofCalifornia,SantaBarbara,identifiedareasupto200metresdeepthatarerightforfarmingfishandshellfish,butcurrentlyunexploited.Wewouldonlyneedtofarmatinypartofthespaceidentified—nolargerthanLakeMichigan—tomatchcurrentproductionfromwild­caughtfisheries(渔业),theteamsays.Betterstill,ifweusedalloceanspacesuitableforaquaculture,wecouldproduceasmuchas15billiontonsoffishannually.That's100timesmorethanwecurrentlyeateachyear.Allofthissuggestswecouldfarmourwayoutofthefisheriescrisisandpossiblyglobalfoodsecurityproblems.Peoplewanttoeatmoreseafood,andweseemtohaveplentifulspacetofarmit.Itsoundssosimple—exceptthatit'snot.Forstarters,notallsuitableareaswillbecomefishfarmsformanyreasons,suchasworriesabouthabitatdamageorlocaldisagreement.Thenthere'sthebiggerproblemofunintendedeffects.Ratherthansavewildfisheries,aquaculturecandenigratethemfurtherbyspreadingdiseaseandpollution,nottomentionthesenselesspracticeofusingsmallwildfishasfeedforlargerfarmedfish.Knowingthatwehaveenoughspaceweneedtogrowaquacultureofferssomecomfort.Buttherearealsoplentyofwarnings.Andifwecontinueconsuminglargeamountsofwild­caughtfish,wemaysoonhavetoacceptthatourdietwillchangeinwayswehaven'texpected.4．Whatisthemainreasonforfarmingfishintheocean?A．Oceanexploitation.B．Environmentalprotection.C．Growingneedforfish.D．Thediversityoffish.5．Whatistheadvantageoffishfarmsintheocean?A．Wecanproduceadequateamountsoffishintinyspace.B．Wecansolvetheglobalfoodsecurityproblems.C．Itissimpleandpracticaltoraisefishintheocean.D．Allsuitableoceanareascanbecomefishfarms.6．Whatdoestheunderlinedword“denigrate”inparagraph6probablymean?A．Harm. B．Benefit.C．Pollute. D．Promote.7．What'stheauthor'sattitudetowardsoceanfishfarms?A．Positive. B．Objective.C．Negative. D．Indifferent.Ⅱ.完形填空Youjustcan'timaginewhatabravemotherislike.Shewasamotherofthree,whojust__1__anearthquake,andcouldn'ttellifherchildrenwere__2__forhelp.Orwhatifyouknewyoucouldn'tyellatherforhelpbecauseshecouldn't__3__you?ThatwaswhathappenedtoConnieandherthreechildren__4__the6.1­magnitudeearthquakerockedNapa,California.Connieis__5__andcommunicateswithherchildrenusingsignlanguage.Atmidnight,Connieandherthreechildrenwere__6__onthefirstflooroftheirtwo­storyhome.Sheandher16­year­oldson,Juan,wereshakenawake.Instantly,theyrealizedtherewerenodisastersuppliesdownstairs.Connie,also__7__one­month­oldRauland8­year­oldAdriana,calledJuantocomeclosetoherinthedarknessand__8__forhimtogoupstairstogeta__9__．Juanslowly__10__thestairs.Heheardaloudcreak(嘎吱声).Arrivingonthetopfloor,hemovedquicklybut__11__togetwhatheneeded.Usingtheflashlighttoguidehisstepsback__12__thestairs,thefamilywasabletotakeafewitemsfromthefirstfloorand__13__.Theirhomewasalmostinruins.Beingdeafwasnotdeterrent(妨碍物)forthis__14__mother.Thefamilymadeittothe__15__safely,whichcomfortedeveryone.1．A.experienced B．dreamedC．avoided D．reported2．A.turningaround B．standingbyC．runningaway D．cryingout3．A.see B．hearC．forgive D．reach4．A.whe