Unit 2 单元检测 人教版（2019）选择性必修第四册

人教版选择性必修第四册unit2单元检测第一部分听力(略)第二部分阅读(共两节，满分50分)第一节(共15小题；每小题2.5分，满分37.5分)阅读下列短文，从每题所给的A、B、C、D四个选项中选出最佳选项。AMorethantwothirdsoftheworld’spolarbearswillbewipedoutby2050，accordingtoashockingnewstudy.Bythen，scientistssay，globalwarmingwillhavemelted42percentoftheArcticseaice.By2100，onlyaveryfewoftheseimportantcreatureswillbeleft.ThereporthasbeenproducedbytheUSGeologicalSurvey.ThescientistshavepublicizedtheirfindingsinthehopeofinfluencingUSInteriorSecretaryDirkKempthorne，whohasbeenaskedtoputpolarbearsontheUSendangeredspecieslist.Polarbearsdependonfloatingseaiceasaplatformforhuntingseals，whicharetheirmainfood.Withoutenoughice，polarbearswouldbeforcedtogoontotheland，wheretheyarepoorlyskilledhunters，andwouldbeunlikelytoadapttothelifeonthelandintime.Expertssayfewlittlebearswouldsurviveandthestresscouldmakemanyfemalesunabletogetpregnant.TheteamofAmericanandCanadianscientistsspentsixmonthsstudyingbears：ontheground，fromspotterplanesandinthelab，usingcomputermodels.Someteammembersfeartheresultisevenworseforthebearsthanwhattheirreportsays.TheysaytheArcticiswarmingfasterthananywhereintheworldandmuchfasterthantheircomputerhasbeenforecasting.Satelliteobservationshaveshowedthattheicehasdecreasedtoanall­timelow.However，noteveryoneinthescientificcommunitybelievesthatglobalwarmingishappeningonsuchanalarmingscale.Anotherinvestigationhasfoundthatpolarbearsarestillbeinghuntedbywealthy“sportsmen”whowanttheirskinsandheads.Atleastteninternationalcompaniesofferbear­huntingtrips.21．WhatdoweknowaboutDirkKempthorneaccordingtothepassage?A．Heisananimalscientist.B．HeisaprotectorofanimalsworkingfortheUSgovernment.C．HehasbeenaskedtoputpolarbearsontheUSendangeredspecieslist.D．Hehasofferedtoputpolarbearsontheendangeredspecieslist.22．Whywillpolarbearsdieoutifthereisnotenoughseaice?A．Becausepolarbearscan’tcatchenoughfoodwithoutice.B．Becausepolarbearseaticewhentheyfeelthirsty.C．Becausepolarbearswillbeeasilyfoundbyhunterswithoutice.D．Becausemostfemalebearsareusedtogivingbirthunderice.23．Afterasix­monthstudy，somescientistsfearthat.A．thereissomethingwrongwiththeircomputersB．polarbearswilldisappearevenfasterthantheyhaveeverexpectedC．theircomputermodelsarenotasaccurateastheyexpectedD．globalwarmingwilldestroyeverythingintheArctic答案CABBTherehasbeenalotofpublicityrecentlysurrounding5G，thenextgenerationofwirelesstechnologyfortheworld.Butwhatisthistechnologyandhowmightitchangeourlives?5Gstandsforfifthgeneration，meaningthenextstepintheprogressionoftechnologytoreplacethecurrent4Gsystem.4Gwasthereplacementfor3G，whichcameafter2G，andsoon.Earlier“G”systemsweredesignedtoimprovemobilecommunicationoperations.Eachnewtechnologybroughtmajorimprovementsinspeedandgreatlyincreasednetworkcapacity(容量)．Thenew5Gsystempromisesmoreofthesame.However，technologyexpertssaythereisamajorwaythat5Gisdifferentthantheearliersystems.Itwillmovewellbeyondmobilenetworktechnologytoaffectmanymoredevicesandindustriesthanother“G”versions.Wirelessindustrygroupssay5Gwillhelpfuelfuture“smartcities”byconnectingsensor(传感器)networks.5Gisalsoexpectedtoconnectself­drivingcarsandsupportnewtechnologiesinvolvingvirtualreality.Higher5Gspeedscouldalsopermitdoctorstocommonlyperformremotemedicaloperations.Factoriesandbusinessescoulduse5Gtechnologytoincreaseautomationandimprovethecollectionofinformation.Everycoinhastwosides.Muchofthedatacouldcontainprivatedetailsaboutindividuals，businessesorgovernmentorganizations.TheincreaseddataflowwouldgiveInternetattackersalotmorepossibilitiestostealandmisusedata.Inaddition，thewideruseofa5Gwirelessnetworkmeansanybreakdownofthesystemwouldhavemorewidespreadandsevereresults.Suchdifficultiescouldaffectpublicsafetyaswellasworldeconomicactivity.24．Whatisthesignificantdifferencebetween5Gandtheearly“G”systems?A．Itwillaffectmoredevicesandindustries.B．Itwillchangethewaypeoplecommunicate.C．Itwillreformthepatternofinformationsystem.D．ItwillimproveInternetspeedandnetworkcapacity.25．Whatcanwelearnabout“smartcities”fromthepassage?A．Smartcitiesarecitiesfullofintelligentpeople.B．Nowmanysmartcitieshavebeenbuiltallovertheworld.C．Aslongastherearewirelessnetworks，youcanbuildsmartcities.D．Thedevelopmentof5Gacceleratestheconstructionofsmartcities.26．Whycan5Gallowdoctorstoperformlong­rangemedicaloperations?A．Becauseofthelowcostof5G.B．Becauseofthewiderangeof5G.C．Becauseofthehighspeedof5G.D．Becauseoftheabilityof5Gtocollectinformation.27．Whatisthelastparagraphmainlyabout?A．Possiblerisksof5Gtechnology.B．Theadvantagesof5Gtechnology.C．Theinfluenceof5Gtechnologyontheworld.D．Theimportanceofinformationsecurityinthe5Gera.答案ADCACTravelisoneofthemostexcitingexperiencesahumanbeingcanhave.ImaginehowtheItaliantravelerMarcoPolomusthavefeltwhenhefoundhimselfonChinesesoil，seeingawayoflifequitedifferentfromwhathe’dseenbefore.Andhowmarvelous(了不起的)itmusthavebeentolistentoZhangQianwhenhereturnedtoChinafromhisjourneythroughCentralAsiaandWestAsia！Hisbrainmusthavebeenpackedwitheverythinghe’dseenandheard，leadingtothefoundingoftheSilkRoad.Somepeoplehavetraveledallovertheworld，andtravelisawayoflifeforthem.Theyperhapsknowwhattoexpectbeforetheytravel.That’swhythebesttravelisthefirstone.ImagineapersonwhohasalwayswantedtotraveltotheUnitedStates.Ofcourse，hehasprobablyseentheStatueofLibertyathousandtimesonTV，andtheWhiteHouse，andalltheotherfamoussights.Butnothingwouldcomparetothethrilloflookingoutofthecabinwindow(舷窗)astheplanelands，watchingthebuildingsandstreetsoftherealAmericacomeintoview.Althoughtravelisoftenjustforrecreation，it’salsoeducational.Wemaynotknowthatwearegettinganeducation，butwestillare.We’relearningeveryday：newwordsinanewlanguage，newpeople，andnewwaysoflife.Butthislearningtakesplaceintheschooloftheworld，nottheclassroom.Oneofthelessonswelearnisundoubtedlyamoralone.Aswegettoknowforeignplaces，wecometounderstandthattherearemanydifferentwaystolive，andthatthewayweliveisn’tnecessarilythebest.TheBritishpoliticianBenjaminDisraelisummedthisupwellwhenhesaid，“Travelteachestoleration.”28．TheauthorusesMarcoPoloandZhangQianasexamplesto.A．explainhowtheSilkRoadwasfoundedB．presenttravelasanamazingexperienceC．showhowthewaypeopletravelhaschangedD．describeimportantculturalexchangesinhistory29．Bysaying“thebesttravelisthefirstone”inParagraph2，theauthormeansthat.A．one’sfirsttripisusuallythemostchallengingB．noothertripisbetterthanone’sfirsttripC．thereisalwaysmuchtolearnonone’sfirsttripD．peopleusuallymakebetterpreparationsfortheirfirsttrip30．Theunderlinedword“recreation”inParagraph3probablymeans“”．A．learning B．knowledgeC．fun D．risk31．Accordingtothelasttwoparagraphs，theauthorbelievesthat.A．travelingshouldbeincludedinformaleducationB．travelingimprovespeople’sconfidenceintheirlifestyleC．aforeignjourneymayraisepeople’sculturalunderstandingD．thereismoretolearnfromadventuresthanclasses答案BBCCDOnedayinMarch，sevenyearsago，duringhappyhouratabarinmyhometownofFayetteville，Arkansas，Imadeasurprisingannouncementtomyfriends：Iwasgoingtoshutdownmylawpracticeandattempttotravelaroundtheglobeinayear.What’smore，Iwoulddoitwithouttakinganyflightsormakingasingleadvancereservationofanykind.Myannouncementdrewmixedreactionsfrommyfriends.Someofferedsupportandencouragement，whileothersweremoredoubtful.OnceIhadsaidthewords，therewasnoturningback.Ittookmonthstoshutdownmylawpracticeandgetthingsinorder.OnceIsetoffonmyadventureinDecember2008，Ifoundtravellingwithoutusingplaneswasnoteasy.Tryingtocircletheglobein16months(ittookmeabitlongerthantheinitial12monthsIplanned)madeitevenharder.Evenso，travellingoverlandwasthemostamazingwaytotrulyunderstandtheimmensity(浩瀚无际)ofourwonderfulplanet.Itookthreeconsecutive(连续的)overnightbusestotravel3,000kmthroughArgentina，fromUshuaiatothecapitalBuenosAires.Iwouldlookoutofthewindowsforhoursonendatthecompletelyunspoiledplains，asifhumanshadnevertouchedit.IttooksevenconsecutivedaysandnightsontrainstogetfromMoscowtoBeijing，eachdayspentstaringoutofthewindowsforhoursastheSiberianplainssweptby.Sometimes，Iwouldn’tseeavillageorahumanbeingfor10hours.Laterinmyjourney，ittook22daysonacargofreighter(货船)togetfromNewZealandthroughthePanamaCanalandbacktoPhiladelphia，tofinishmyround­the­worldadventure.ItturnedoutthattravellingwithnoreservationswasfarlessdifficultthanIhadimagined.Pullingintoacityonabuswithabackpack，lookinginaguidebookforafewsuggestionsofaccommodations(住所)，andthenfindinganemptyroomwasnevermuchofaproblemanywhere.Italsokeptmeflexible(灵活)andopenaboutallmytravelplans，whichisadviceIgiveeveryonewhoasks—planfarlessthanyouthinkyoushould.32．Theauthor’stripwasspecialinthat.A．hemadeitattheexpenseofgivinguphisjobB．ithardlycosthimanythingC．hedidnotmakeadvancebookingortravelbyairD．itwasaglobaltrip33．TheauthormostprobablyreturnedtotheUnitedStatesin.A．June2009 B．December2009C．February2010 D．April201034．Theauthor’stravellingroutewas.①Moscow②Philadelphia③NewZealand④Ushuaia⑤Beijing⑥BuenosAiresA．⑤④①⑥③② B．④⑥①⑤③②C．④⑤①⑥③② D．⑤①⑥④③②35．Whatdidtheauthorthinkofhisaround­the­worldtour?A．Challengingbutpleasant.B．Dangerousbutwonderful.C．Boringanddisappointing.D．Costlyandpainful.答案CDBA第二节(共5小题；每小题2.5分，满分12.5分)阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。选项中有两项为多余选项。Atravelblogproducesinterestinpeopleforvisitingthenewplaces.36Ablogownermightidentifyaplace,suchastravellocationswithinasmallregionofacountry,orbroadenthescopetoincludecountriesacrosstheglobe.Writingatravelblogrequiresrecordingnotesandobservations,takingpicturesandtalkingtolocalpeoplewhiletraveling.Hereareafewtipsforwritingatravelblog.Firstofall,youmustvisitvariousplacessothatyoucanteachyourvisitorsabouttheselocations.Visitorsofyoursitewantaneye­catchingtextsuchthattheyfeelasiftheyareattheplaceyou’redescribing.37Protectthereliabilityofyourtravelblogbyprovingallfacts.Writedowndirectionsasyoutraveltovariouslocationssothatyoucanprovideaccurateinformationtoreaders.Providethecorrectspellingoftowns,people,restaurantsandstreets.Callphonenumbersandvisitwebsitelinksbeforepublishingtoverifyaccuracy.38Asyoutravel,writedownyourimpressions.Afteramemorablediningexperience,forexample,writedownthenameoftherestaurant,thedishyouordered,itsingredientsandthedetailsofthedecorandmusic.Youmustaddpeople’sinterviewduringthejourney.39Thescentofrareflowers，thebeautifulviewfromamountaintop，thefeelofsofttowelsinahigh­endhotel，andthesoundofawaterfallareexamplesofdescriptionsthathelppeopletoconnectimmediatelywithaplaceorexperience.Takepictures.Tohelppeopleseethingswiththeirowneyes,takepicturesofalllocationsaboutwhichyouwishtowrite.Localcuisines,landmarks,traditionalclothingandsceniclocationsarepossibleexamples.40Respondtoreaders’comments.Blogstypicallyallowyoutoacceptordisablecomments.Allowingcommentsisanopportunitytobuildrapportwithreadersandanswerquestions.A．Keepatraveljournal.B．Recordeventsonvideos.C．Providecorrectfacts.D．Askforsubmissionsfromothertravelers.E．Visitinggivesmentalsatisfactiontoallpeople.F．Usethesenseswhenwritingaboutlocations.G．Takephotos,postingtheclearestandmostbrightpictures.36．E37．C38．A39．F40．G第三部分语言运用(共两节，满分30分)第一节(共15小题；每小题1分，满分15分)阅读下面短文，从每题所给的A、B、C、D四个选项中选出可以填入空白处的最佳选项。Ithasbeenfiveyears.Noone’squitesurehowSasha，the6­year­oldblackcat，41itfromPortlandtoNewMexicoafterfiveyears.Butapparentlyitisn’tuncommonforcats—whoareknownfortheir42character—togohitchhiking(搭便车)．“It’slikeheneverleft.He’sso43，”saiditsownerUsov.“IguesshewasonagreatAmerican44.”WhenSashadisappearedin2014,Usovthoughtthecatmighthave45wolves.Butnoteverycatthatdisappears46abadend.It’sverycommonforacatto47onatrainorthebackofatruck，butforacattotravel1,200milesandthengobacktoitsowner?That48happens.Sasha’sfurwasmatted(乱成一团的)whenhewasfound49thestreetsbyworkersoftheSantaFeAnimalShelterthismonth.Theysetouttofindhisowner.“Sashadidn’tmissameal，”Kirdar,aworkerattheshelter，said.Theshelterreunitesfamilieswiththeir50petseveryday,51thisisthefirsttimeKirdarhasdoneanin­persondelivery.Sasha’s52wouldnothavebeenpossibleifhehadnotbeenmicrochipped(植入微芯片)．“Themicrochipisthebestformof53，”saidKirdar.However,justgettingyourpetmicrochippedisn’tenough.It’simportantto54themicrochip’sproducerifthereisa55inyourcontactinformation.41．A.hated B．madeC．received D．learnt42．A.complex B．popularC．independent D．weak43．A.happy B．annoyingC．pitiful D．helpful44．A.adventure B．farmC．island D．holiday45．A.teamedwith B．fallenvictimtoC．madefriendswith D．foughtagainst46．A.brings B．demandsC．meets D．expects47．A.bite B．liveC．sleep D．jump48．A.actually B．rarelyC．normally D．hopefully49．A.clearing B．blockingC．wandering D．checking50．A.thrilled B．unluckyC．missing D．crazy51．A.and B．butC．because D．though52．A.return B．illnessC．disappearance D．movement53．A.technology B．civilizationC．identification D．explanation54．A.download B．recordC．copy D．update55．A.fact B．numberC．name D．change41-55BCAABCDBCCBACDD第二节(共10小题；每小题1.5分，满分15分)阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。ThePalaceMuseum，knownastheForbiddenCity，isthe56.(large)andmostwell57.(reserve)imperial(皇帝的)residenceinChinatoday.Itisdividedintoanouterandaninnercourtwitharectangularshape，961meterslongfromnorthtosouthand753metersin58.(wide)fromeasttowest.IthasasplendidhistorysincetheMingDynasty，andit59.(rebuild)andrepairedmanytimesinthepast.Iwassoexcitedtovisitit60.myfamilylastsummervacation.AfterwepassedthroughtheFrontGate，alotofpalacesappeared.Thetourguidetoldustherewerealmost8,700roomsinthePalaceMuseum.DuringtheMingDynasty，constructionbeganin1406.61.took14yearstobuildtheForbiddenCity.Iwas62.(real)surprisedthattheworkerscouldbuilditsowell63.eventodayitisnotoutofstyle.Icouldnotrememberallthenamesofthebuildings，butItookhundredsofbeautiful64.(photo)ontheway.IthinkIwillneverforgetthe65.(amaze)tripIhadinBeijing，ChinaandIcangotherenexttimewithmyfriends.56．largest57．reserved58．width59．wasrebuilt60．with61．It62．really63．that64．photos65．amazing第四部分写作(共两节，满分40分)第一节(满分15分)假设你叫李华，现在在美国某所中学作交换生。你所在的旅游社团计划下周末组织大家去旅游，该社团负责人彼得就旅游目的地及活动项目征求大家的意见。请你根据以下要点给他写一封建议信。要点如下：1．旅游目的地：罗拉多州(Colorado)；原因：①风景优美(有激流、峡谷、森林等);②便宜便捷(乘车约两小时可到)；2．活动项目：国家公园宿营、河边野炊、垂钓、徒步、摄影、绘画等。注意：1．词数80左右；2．信的开头和结尾已给出，不计入总词数。DearPeter，Yours，LiHua参考范文DearPeter，I’mwritingtosuggestapopularholidaydestination—beautifulColorado.Therearerushingriversandgreatvalleys.Theforeststherearehometomanykindsoftreesandanimals.Besides，it’scheapandconvenientforustogettherebybus.Ittakesabout2hours.Wecancampinnationalparksinourtents.Wecanalsohaveapicnicalongtheriver.Bestofall,thereissomethingforeverybodytodoinColorado.Wecanfishinstreams;wecangohiking;wecanwanderaroundtheparktakingphotosorjustsitsomewhereandpaintpictures.Don’tyouthinkColoradowouldbegreat?Yours，LiHua第二节(满分25分)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。ItwasthehottesttimeoftheyearinsouthernCalifornia.Steve，astarbasketballplayerattheUniversityofCalifornia，withhiscousinZach，hadplannedacampingtripintheGreatNationalForestfortheirsummervacation.Theboysgatheredclothesandsupplies，andbegantheirgreatadventurewithBradythedogearlyinthemorning.Uponarrival，Stevepulledovertothesideoftheroadalongthebankoftheriver.“Awonderfulplaceforfishing，”Steveexclaimedindelight.Zachnoddedinagreement.Athighnoon，thesunwasscorchinghot.Withagoodharvestoffish，theboysmarchedintotheforestwithBradyfollowingthem.Afteralongwalk，theyfoundaclearingthatwasidealforacampsite.ThecampwassetupimmediatelyasSteveknewallthetricksofanexperiencedwildernesscamper.Anafternoonnapwasabsolutelyaspecialtreatinmid­summer.However，theboyswerewakenupbythefiercebarksofBrady.Outside，heavysmokefilledtheairandwind­blownflamewasskippingfromthetopofonetreetoanother.Thelongdrysummerturnedtheforesti