Unit 6 單元質(zhì)量檢測(cè)

2/2UNIT6單元質(zhì)量檢測(cè)(六)(滿分120分，時(shí)間100分鐘)第一部分閱讀(共兩節(jié)，滿分50分)第一節(jié)(共15小題；每小題2.5分，滿分37.5分)閱讀下列短文，從每題所給的A、B、C、D四個(gè)選項(xiàng)中選出最佳選項(xiàng)。APerhapsnowsomorethanever,it'simportanttotaketimetoappreciatethebeautyofournaturalworld.IntheUS,allyouhavetodoisturntothenationalparksforinspiration.Notonlydotheseparksofferhiking,campingandwildlife-spottingservice,buttheyeachhaveinterestingstoriestotellthatmakethemtrulyuniquefromothersdesignatedbytheNationalParkService.Justcheckitoutforyourselfwiththesefun,fascinatingfactsabouteachnationalpark.AcadiaLocation:MaineSize:65squaremilesFact:SprawlingacrossMountDesertIsland,offthecoastofeasternMaine,AcadiabecamethefirstnationalparkeastoftheMississippiRiverin1929and,today,isstilltheonlynationalparkinthenortheast.AmericanSamoaLocation:SouthPacificSize:21squaremilesFact:LocatedoutsideofthecontinentalUS,theAmericanSamoaterritoryisspreadoutacrossthreeislandsandhappenstobethecountry'sonlynationalparkinthesouthernhemisphere.ArchesLocation:UtahSize:119squaremilesFact:Therearemorethan2,000naturalrockarchesin(theappropriatelynamed)ArchesNationalPark,whichisthebiggestconcentrationofformationsinthecountry.BadlandsLocation:SouthDakotaSize:379squaremilesFact:AtBadlandsNationalPark,inthevastplainsofSouthDakota,visitorscanwitnessageologicalwonder.Therocksherearestilleroding(被侵蝕)atarateof1inchperyear,whichisarapidrateforrocks,accordingtotheNationalParkService.BigBendLocation:TexasSize:1,252squaremilesFact:AtremoteBigBendNationalPark,geologicalhistoryrunsdeep.Hundredsofmillionsofyearsago,twoinlandseasflowedthroughtheregion,andasaresult,therearethickstoresoflimestoneandshale(頁巖)throughoutthepark.1．Inallthenationalparksmentioned,whichofthefollowingvisitorscanNOTexperience?A．Hiking. B．Swimming.C．Camping. D．Wildlife-spotting.2．WhichparkisnotinthemainlandofUS?A．Acadia. B．Arches.C．AmericanSamoa. D．Badlands.3．WhatisuniquetoBadlands?A．Ithasever-changingrocks.B．Ithaslargeamountsoflimestone.C．Itistheonlynationalparkinthenortheast.D．Ithasahistoryofhundredsofmillionsofyears.BAfive-year-olddognamedKelseyhasbeenpraisedasaheroforhelpingtosavethelifeofherownerwhoslippedinthesnowandbrokehisneck.Theman,Bob,wasalonewhenhelefthisMichiganfarmhouseonNewYear'sEvetocollectfirewood.Expectingajourneyofonlyseveralmeters,Bobwaswearingjustlongjohns(秋褲),ashirtandslipperswhenhewentoutside,althoughthetemperaturewasaround－4℃.Aftertheaccident,hewasunabletomoveinthesnow.Fortunately,Kelseycametohisassistance.“Iwasshoutingforhelp,butmynearestneighborisabout400metersaway,anditwas10：30pm，”Bobexplained.“ButmyKelseycame.Bythenextmorning,myvoicewasgoneandIcouldn'tyellforhelp,butKelseydidn'tstopbarking.”Bob'scompanionkepthimwarmbylayingontopofhim.Shelickedhisfaceandhandstokeephimawake.“Kelseykeptbarkingbutneverleftmyside，”Bobrecalled.“Shekeptmewarm.IknewIcouldn'tgiveupandthatitwasmychoicetostayalive.”Bobspent19hoursinthefreezingcold.Whenhefinallylostconsciousness,hisdogkeptbarking.Finally,hearingthebarking,Bob'sneighbordiscoveredhimat6：30p．m.onNewYear'sDayandcalledtheemergencyservicesatonce.WhenBobarrivedinhospital,hisbodytemperaturewasbelow21℃.However,doctorsweresurprisedtofindthathedidn'thaveanyfrostbite(凍瘡)．TheybelieveditwasbecauseofKelsey'sdeterminationtokeephimwarm.Dr.ChaimColen,thedoctorwhotreatedBob,said,“Animalscanhelpandhisdogreallysavedhim...hewasveryfortunate.”Bobsaidhewas“enormously”gratefulforbothDr.ColenandhisKelsey.“Theysavedmylife.Theyaretrulyheroes！”4．WhathappenedtoBobonNewYear'sEve?A．Helefthisdogaloneinhisfarmhouse.B．Hewaspraisedforsavingadogowner.C．Hebrokehisneckandcouldn'tmove.D．Heheardhisneighbor'sshoutingforhelp.5．WhydidKelseykeepbarking?A．Tokeepwarm.B．Tostayalive.C．TokeepBobawake.D．Toseekhelpfromothers.6．HowdoesDr.ChaimColenfeelaboutKelsey?A．Helpful. B．Fortunate.C．Grateful. D．Friendly.7．Whatcanbeasuitabletitleforthetext?A．ANeck-breakingAccidentB．TheMagicNightC．WarmthonaWinter'sNightD．DeterminationtoKeepAliveCScientistshavealwaysbeeninterestedinthehighleveloforganizationinantsocieties.Americanresearchershavewatchedantsbuildlife-savingraftstokeepafloatduringfloods.Theyalsohaverecordedhowantschoosetheirnextqueen—thefemalewhosejobistoproduceeggs.Newtechnologyishelpingtoimproveresearchers'understandingoftheinsects.Butthereisstillalottobelearned.FireantslivinginBrazilianforestsareperfectlyathomeinanenvironmentwherefloodingiscommon.Tosavethemselves,theinsectsconnecttheirlegstogetherandcreatefloatingrafts.Someantraftscanbeupto20centimeterswide.DavidHuisanengineerwiththeGeorgiaInstituteofTechnology,alsoknownasGeorgiaTech,saying，“Ifyouhave100ants,whichmeans600legs,99percentofthoselegswillbeconnectedtoaneighbor.Sothey'revery,verygoodatkeepingthisnetwork.”DavidHuandotherGeorgiaTechresearcherswantedtostudyantsandthesecretoftheirengineering.Theyfrozeantraftsandthenlookedatthemwiththehelpofcomputedtechnology,orCTimages.Thepicturesshowedthatlargerantsserveincentralpositionstowhichsmallerantshold.Thelargerantscreatepocketsofairthatkeeptheinsectsafloat.Scientistssaysmallrobotsormaterialsthatcanchangeshapecouldbeprogrammedinasimilarway,workingtowardsasharedgoal.ResearchersatNorthCarolinaStateUniversityarealsostudyingants.TheyexaminedhowIndianjumpingantschoosetheleaderofthecolonywhentheylosetheirtopfemaleorqueen.8．Whydoestheauthortakesfireantsasanexample?A．Totellreadershowantssurvive.B．Totellreadershowantsseekfood.C．Totellreadershowantscommunicate.D．Totellreadershowantslivetogether.9．WhatcanweknowfromwhatDavidHusaidinParagraph4?A．Antsknowthewaytokeepintouchintheriver.B．Antsknowthewaytojointogetherclosely.C．Antsknowthewaytolookforeachother.D．Antsknowthewaytobuildalargeraft.10．Whydidthelargerantsserveincentralpositionsintheirantrafts?A．Tostresstheirimportance.B．Tohelpalltheantsfloat.C．Tofightagainsttheenemies.D．Todefendtheirtopfemale.11．Whatideasdotheantsgiveusaccordingtothepassage?A．Wecanusesimilar-shapedmachinesinfloodingareas.B．Wecancombinesmallrobotsormaterialsintolargerones.C．Smallandshape-changeablethingsmightworkjustlikeantsdo.D．Smallrobotsormaterialsintheshapeofantscanbemade.DAremarkablevarietyofinsectsliveonthisplanet.Insectshavesurvivedonearthformorethan300millionyears,andmaypossesstheabilitytosurviveformillionsmore.Insectscanbefoundalmosteverywhere—onthehighestmountains,inthecoldSouthPoleandinbubblinghotsprings.Theydigthroughtheground,jumpandsinginthetrees,andrunanddanceintheair.Theycomeinmanydifferentcolorsandvariousshapes.Insectsareextremelyusefultohumans,pollinating(授粉)ourcropsaswellasflowersinmeadows,forests,desertsandotherareas.Butsomeinsects,suchasmosquitoesandfleas,cantransmitdisease.Therearemanyreasonswhyinsectsaresosuccessfulatsurviving.Theiramazingabilitytoadaptpermitsthemtoliveinextremerangesoftemperaturesandenvironments.Theycansurviveonawiderangeofnaturalandartificialfoods—paint,books,grain,plantsandanimals.Becausetheyaresmall,theycanhideintinyspaces.Astrong,hardbutflexibleshellcoverstheirsoftorgansandisresistanttochemicals,waterandphysicalimpact.Theirwingsgivethemtheoptionofflyingawayfromdangeroussituationsortowardfoodormates.Also,insectshaveanenormousreproductivecapacity:AnAfricanantqueencanlayasmanyas43,000eggsaday.Anotherreasonfortheirsuccessisthestrategyofprotectivecolor.Aninsectmayberightbeforeoureyes,butnearlyinvisiblebecauseitiscleverlydisguised(偽裝)likeagreenleaf,lumpofbrownsoil,aseedorsomeothernaturalobjects.Someinsectsusebright,boldcolorstosendwarningsignalsthattheytastebad.Othershavewingpatternsthatlookliketheeyesofahugepredator,confusingtheirenemies.12．Whatdoestheunderlinedword“transmit”inParagraph2mean?A．Cure. B．Catch.C．Prevent. D．Spread.13．Howcantheinsectsprotectthemselvesfromchemicals?A．Haveastrongshell.B．Flyawaywhennecessary.C．Hideintinyspaces.D．Changecolorsorshapes.14．Whydosomeinsectsdisguiselikenaturalobjects?A．Tolookbad-tasting.B．Tosendwarningsignals.C．Toavoidbeingdiscovered.D．Tofrightenawaytheirenemies.15．What'sthemainideaofthistext?A．Howinsectssurviveindifferentplaces.B．Whyinsectscansurvivesosuccessfully.C．Whatinsectscandototheenvironment.D．Whereinsectscanbefoundinquantity.第二節(jié)(共5小題；每小題2.5分，滿分12.5分)閱讀下面短文，從短文后的選項(xiàng)中選出可以填入空白處的最佳選項(xiàng)。選項(xiàng)中有兩項(xiàng)為多余選項(xiàng)。Sayyou'reoutforawalkinthewoods.16.Norcanyoutellthedirectionfromwhichyou'vecome.You'relost.Howcanyousurvive?Here'sthegoodnews:Youdon'tneedtobeasurvivalexperttofindyourwaybacktocivilization.Juststaycalmandrememberthesetips.Pinpoint(定位)yourlocation.Takeagoodlookaround.Whatdoyousee?17，pinpointingyourlocationwillbedifficult.Ifpossible,findhigherground,givingyourselfabetterviewofthesurroundings.Otherwise,youmayendupwalkingdirectionlessandpossiblyincircles.18.Whiletravelingthroughthewilderness,beobservant.Lookforoldcampsites,fishingline,foodbags,cigaretteends,plasticwaterbottles,oranyotherkindoflitter.Ifyoufindanysuchevidence,examineyoursurroundingstodeterminewhichwaytheywent.Ifpossible,sticktoopencountry.19.Thistypeofterrain(地帶)isoftenaresultoffarmingorlogging(伐木),whichmayputyouclosertootherpeople.Plus,beingoutintheopenmakesiteasierforyoutobespottedbyalowflyingaircraft.Besuretohavesomethingreadytosignalwithincasearescueplanefliesnearby.Traveldownhill.Ifyouarelostinhillyterrain,yourbestchoiceisalmostalwaystotraveldownhill.Peopletendtosettleinvalleys,usuallyclosetowater.20，headdownandoutofthemountains.Besides,youcancovermoreterrainandconserveenergytravelingdownhill.A．FindyourwayoutB．LookforsignsofpeopleC．IftheanswerisathickforestD．Sometimes,it'snoteasytofindopencountryE．Suddenly,youdon'trecognizeyoursurroundingsF．UnlessyouhaveseensignsofpeopleathigherplacesG．Travelinginopencountryisagoodwaytofindsignsofcivilization第二部分語言運(yùn)用(共兩節(jié)，滿分30分)第一節(jié)(共15小題；每小題1分，滿分15分)閱讀下面短文，從每題所給的A、B、C、D四個(gè)選項(xiàng)中選出可以填入空白處的最佳選項(xiàng)。Pennsylvaniaisfullofmysteriousplaces!Oneofthoseisanoldturnpike(收費(fèi)高速公路)21fordecades.Mydadloveshistory,andhelearneditwasopentothepublic.22，whenIwas14,wetookabiketripto23thisroad!Mydadchosea16-mile24oftheroadforustoride.PartofitincludedanoldtunnelcalledSidelingHillwhichisoveramilelong!To25，wecheckedourtiresandmadesureourlightshadbatteries.Inthemorning,weloadedourbikesintothecarandsetoff.Asweapproachedthetunnel,Ifelt26asitwasabsolutelyblackinside!ButDadencouragedme.Hesaidhewouldbebesideme.Heremindedmetostay27andkeepmylighton!Whenwe28thetunnel,thesoundofourbikeswasheardthroughthedarkness.Ishinedmyflashlightaroundandsawwalls29ingraffiti(涂鴉)．AndIfeltlikeIwasbeing30！Iwasprettyscared,but31onfollowingDadhelpedmerelax.Afterridinghalf-waythrough,Icouldseelightcomingfromtheotherend,motivatingmetokeepgoing.AndIwassodelightedtorideoutintothebrightafternoon!Whenevergoingthrough32inlife,Irememberthistrip.Itremindsmethatmyfatherisalwaysbesideme.Heturnsonthelightofhopeinmy33，aswellasgivesme34tokeepridingthroughlife's35tunnels.21．A.designed B．destroyedC．a(chǎn)bandoned D．locked22．A.However B．OtherwiseC．Therefore D．Meanwhile23．A.explore B．constructC．protect D．repair24．A.tunnel B．sectionC．block D．course25．A.participate B．registerC．cooperate D．prepare26．A.excited B．nervousC．a(chǎn)nnoyed D．exhausted27．A.silent B．curiousC．cautious D．positive28．A.approached B．observedC．constructed D．entered29．A.covered B．buriedC．a(chǎn)bsorbed D．dressed30．A.forced B．watchedC．a(chǎn)bused D．judged31．A.depending B．survivingC．calling D．focusing32．A.accidents B．hardshipsC．regulations D．incidents33．A.chest B．tripC．work D．heart34．A.courage B．prideC．excitement D．enthusiasm35．A.difficult B．distantC．dark D．long第二節(jié)(共10小題；每小題1.5分，滿分15分)閱讀下面短文，在空白處填入1個(gè)適當(dāng)?shù)膯卧~或括號(hào)內(nèi)單詞的正確形式。IamChuckLeavell,amusician,forester,andconservationistfromGeorgia.Iwasalsoaco-founderofthewebsiteMotherNatureNetwork,which36(integrate)intoTreehuggertheotherday.IamveryexcitedandpleasedtoannouncethatIamnow37(official)ateammemberofTreehuggeraseditor-at-largeand38ambassadorforourTreehuggerFamily!Myinterestintheenvironmentgoesbackdecades.In1981,mywife,RoseLaneLeavell,andIinherited(繼承)aroundathousandacresoflandfromRose'sgrandmother.39(know)thatitwasfamilylandthatwewantedtokeep—butnotknowingexactly40todowithit—weresearchedoptionsanddecidedtogrowtreesforlong-term41(sustain)forestry.Westudiedbooksonforestryandattendedvarious42(course)tolearnasmuchaswecouldaboutthesubject.Sincethen,wehaveplantedmoretrees.Whetheronourownlandorintheworldatlarge,Ineverstopadvocatingfortheenvironment—thatiswhyI'msohappytobehere.AsIbeginmyrole,Ilookforwardto43(contribute)toTreehuggerinmanyways.I44(be)afanofTreehuggerallthistime,andIconsiderthisaveryspecialopportunity.So,pleasestaytunedasIjointhisoutstandingandtalentedgroupofwriters,researchers,andotherpeoplewhohaveapassion45environmentalsubjectmatterandforfindingwaysanddoingthingstoimproveourplanet!第三部分寫作(共兩節(jié)，滿分40分)第一節(jié)(滿分15分)假定你是李華，你們學(xué)校下周準(zhǔn)備舉行一次中西文化差異的講座。請(qǐng)你寫信給你同城的英國朋友Tom邀請(qǐng)他來參加講座，內(nèi)容包括：1．講座時(shí)間、地點(diǎn)；2．講座內(nèi)容：中西文化差異；3．告知是否參加講座。注意：1.詞數(shù)80左右；2．可以適當(dāng)增加細(xì)節(jié)，以使行文連貫；3．開頭和結(jié)尾已給出，不計(jì)入總詞數(shù)。DearTom，Yours，LiHuaYours，LiHua第二節(jié)(滿分25分)閱讀下面材料，根據(jù)其內(nèi)容和所給段落開頭語續(xù)寫兩段，使之構(gòu)成一篇完整的短文。Iwasasinglemotheroffourchildren,workingatalow-paidjob.Moneywasalwaysvaluable,butwehadaroofoverourheads,foodonthetable,andclothesonourbacks.Ialwaystellmyselftobebraveandstrong,justformyfourchildren.Ihopeallmyeffortswouldbeworthwhile,aslongasmychildrencangrowuphealthily.ItwasChristmastime.WedrovedowntowntoseetheChristmaslights,andenjoyedaspecialdinner,butthebigexcitementforthekidswasthefunofChristmasshoppingatthemall.Thiswasatraditionofmyfamily,sotheyalllookedforwardtothecomingoftheseason.Theytalkedandplannedforweeksaheadoftime,askingeachotherwhattheywantedforChristmas.Thebigdayarrivedandwestartedoutearly.Igaveeachotherofthefourkidsatwenty-dollarbillandaskedthemtosearchforgifts.Theneveryonescattered(分散開)withthebill.Isatatatableinacafewaitingformychildrenandenjoyinganinstantofsilence.Itmustbeahappyday.Backinthecardrivinghome,everyonewasexcitedaboutChristmas,laughingandaskingeachotheraboutwhattheyhadbought.InotedGinger,myyoungerdaughterhadonlyonesmallandflatbagwithher.Icouldseeenoughthroughtheplasticbagtotellthatshehadboughtcandybars—fifty-centcandybars!Whatdidshedowiththattwenty-dollarbillIhadgivenher?Iwassoangry.Aftergettinghome,Icalledherintomybedroomandclosedthedoor.Icouldn'tholdbackmyangerandshoutedather,“Whatabouttherestofthemoney?Noonewouldbeconvincedallthesecandiesareworth20dollars.Whatdoyouwanttodowiththerestofthemoney？”注意：1.續(xù)寫詞數(shù)應(yīng)為150左右；2．請(qǐng)按如下格式作答。Shewasshockedatmyreactionandburstintotears.Myangerdisappeared.1解析：選B細(xì)節(jié)理解題。根據(jù)第二段中的Notonlydotheseparksofferhiking,campingandwildlife-spottingservice可知，在這些公園里可以徒步旅行，野營(yíng)和野生動(dòng)物觀察，但沒有提到游泳。故選B項(xiàng)。2解析：選C細(xì)節(jié)理解題。根據(jù)AmericanSamoa中的Fact:LocatedoutsideofthecontinentalUS可知，AmericanSamoa不在美國大陸，故選C項(xiàng)。3解析：選A細(xì)節(jié)理解題。根據(jù)Badlands中的Therocksherearestilleroding(被侵蝕)atarateof1inchperyear,whichisarapidrateforrocks,accordingtotheNationalParkService.可知，Badlands的獨(dú)特之處在于它的巖石每年都在以1英寸的速度被侵蝕，即它擁有不斷變化的巖石。故選A項(xiàng)。4解析：選C細(xì)節(jié)理解題。根據(jù)第一段中whoslippedinthesnowandbrokehisneck及第三段中Aftertheaccident,hewasunabletomoveinthesnow.可知，Bob在雪中滑倒傷到了脖子，不能動(dòng)了。故選C。5解析：選D細(xì)節(jié)理解題。根據(jù)第四段中的Iwasshoutingforhelp,...Bythenextmorning,myvoicewasgoneandIcouldn'tyellforhelp,butKelseydidn'tstopbarking.可知，Kelsey一直叫的目的是找人來幫助主人。故選D。6解析：選A推理判斷題。根據(jù)倒數(shù)第二段中Dr.ChaimColen,thedoctorwhotreatedBob,said,“Animalscanhelpandhisdogreallysavedhim...hewasveryfortunate.”可知，ChaimColen醫(yī)生認(rèn)為動(dòng)物能提供幫助，Bob的狗Kelsey救了他，因此ChaimColen醫(yī)生認(rèn)為Kelsey非常有幫助。故選A。7解析：選C標(biāo)題歸納題。通讀全文并根據(jù)倒數(shù)第二段中However,doctorsweresurprisedtofindthathedidn'thaveanyfrostbite(凍瘡)．TheybelieveditwasbecauseofKelsey'sdeterminationtokeephimwarm.可知，Bob在寒冷的夜里衣著單薄卻沒有長(zhǎng)凍瘡是因?yàn)樗墓酚蒙眢w不停地溫暖他。故選C。8解析：選A細(xì)節(jié)理解題。根據(jù)第三段中的Tosavethemselves,theinsectsconnecttheirlegstogetherandcreatefloatingrafts.可知，作者列舉巴西的火螞蟻是為了告訴我們火螞蟻在洪水里會(huì)把腿連在一起，結(jié)成筏子自救。故選A。9解析：選B推理判斷題。根據(jù)第四段中DavidHu說的話可知，如果有100只螞蟻，就意味著有600條腿，其中99%的腿將與鄰居相連，所以它們非常善于維持這個(gè)網(wǎng)。由此可以判斷出，DavidHu說的話解釋了螞蟻可以把自己的腿連接在一起形成一個(gè)網(wǎng)，這是螞蟻在洪水里自救的方法。故選B。10解析：選B細(xì)節(jié)理解題。根據(jù)第五段中的Thelargerantscreatepocketsofairthatkeeptheinsectsafloat.可知，在螞蟻組成的網(wǎng)里，大一些螞蟻們?cè)诰W(wǎng)的最中間，形成一個(gè)氣泡產(chǎn)生浮力，讓所有的螞蟻都能漂浮起來。故選B。11解析：選C推理判斷題。根據(jù)倒數(shù)第二段可知，螞蟻的行為啟示了科學(xué)家，可以用類似螞蟻?zhàn)跃鹊姆椒ò岩恍┪⑿蜋C(jī)器人或其他一些能改變形狀的材料組合在一起，一起去完成一個(gè)共同的目標(biāo)。故選C。12解析：選D詞義猜測(cè)題。根據(jù)第二段中的Insectsareextremelyusefultohumans,pollinating(授粉)ourcropsaswellasflowersinmeadows,forests,desertsandotherareas.可知，昆蟲對(duì)人類極其有用，它們給我們的莊稼以及草地、森林、沙漠和其他地區(qū)的花朵授粉。畫線詞所在句中的but表明前后句意發(fā)生轉(zhuǎn)折，說明有些昆蟲對(duì)人類有害，會(huì)傳播疾病，故可推測(cè)畫線詞transmit是spread(傳播)的意思。13解析：選A細(xì)節(jié)理解題。根據(jù)第四段中的Astrong,hardbutflexibleshellcoverstheirsoftorgansandisresistanttochemicals,waterandphysicalimpact.可知，昆蟲有一個(gè)堅(jiān)固的外殼，保護(hù)自己免受化學(xué)物質(zhì)的侵害。故選A。14解析：選C推理判斷題。根據(jù)最后一段中的Aninsectmayberightbeforeoureyes,butnearlyinvisiblebecauseitiscleverlydisguised(偽裝)likeagreenleaf,lumpofbrownsoil,aseedorsomeothernaturalobject.可知，昆蟲可能就在我們眼前，但我們卻看不到它，因?yàn)樗擅畹貍窝b成綠葉、褐色土壤、種子或其他自然物體。故選C。15解析：選B主旨大意題。根據(jù)第一段中Insectshavesurvivedonearthformorethan300millionyears,andmaypossesstheabilitytosurviveformillionsmore.及第三段中Therearemanyreasonswhyinsectsaresosuccessfulatsurviving.可知，本文分析了昆蟲能在地球上生存如此成功的原因，B項(xiàng)(為什么昆蟲能如此成功地生存)符合文章主旨。16．選E根據(jù)空后Norcanyoutellthedirectionfromwhichyou'vecome.中的nor可知，本空含有否定意義的詞。E項(xiàng)(突然間，你認(rèn)不出周圍的環(huán)境了)符合語境。17．選C根據(jù)空前句Whatdoyousee？可知，C項(xiàng)中theanswer能夠回答空前句。18．選B根據(jù)全文結(jié)構(gòu)來看，此空應(yīng)選擇一個(gè)段落小標(biāo)題。根據(jù)后文Whiletravelingthroughthewilderness,beobservant.Lookforoldcampsites,fishingline,foodbags,cigaretteends,plasticwaterbottles,oranyotherkindoflitter.可知，此處是在尋找人的跡象。B項(xiàng)(尋找人的蹤跡)可以概括下文內(nèi)容。19．選G根據(jù)段落小標(biāo)題Ifpossible,sticktoopencountry.可知，G項(xiàng)中opencountry和小標(biāo)題內(nèi)容相呼應(yīng)，且G項(xiàng)(在野外旅行是發(fā)現(xiàn)文明跡象的好方法)承接上文，交代了去opencountry的好處。20．選F根據(jù)空前Ifyouarelostinhillyterrain,yourbestchoiceisalmostalwaystotraveldownhill.可知，如果你在丘陵地帶迷路，你最好的選擇就是往低處走。F項(xiàng)(除非你在高處看到人的跡象)能順承上下文。21解析：選C根據(jù)空前的anoldturnpike可知，這條收費(fèi)公路應(yīng)該是廢棄了(abandoned)幾十年。22解析：選C根據(jù)句意可知，前后是因果關(guān)系，此處表示結(jié)果。23解析：選A空前說爸爸喜歡歷史，再結(jié)合下文我們?cè)谶@條公路上的經(jīng)歷可知，爸爸帶“我”騎自行車去探索(explore)這條公路。24解析：選B空后一句說該路段包括一條超過一英里長(zhǎng)的、名為SidelingHill的古老隧道，因此此處是指“一條16英里長(zhǎng)的路段(section)”。25解析：選D空后checkedourtires和madesureourlightshadbatteries都是公路探險(xiǎn)前的準(zhǔn)備(prepare)工作。26解析：選B根據(jù)空后itwasabsolutelyblackinside可知，隧道里面一片漆黑，因此“我”非常緊張(nervous)。27解析：選C空前句說隧道里一片漆黑，因此爸爸提醒“我”要保持小心謹(jǐn)慎(cautious)。28解析：選D根據(jù)上文中weapproachedthetunnel可知，此處發(fā)生在“接近隧道”之后，是說我們進(jìn)入了(entered)隧道。29解析：選A根據(jù)空后graffiti可知，“我”發(fā)現(xiàn)墻壁被涂鴉所覆蓋(covered)。30解析：選B根據(jù)常識(shí)可知，涂鴉多是表情夸張或面目猙獰的人物畫像，因此“我”感覺自己被墻上的畫像注視著(watched)。31解析：選D根據(jù)空后的onfollowingDadhelpedmerelax可知，集中精力(focusingon)跟著爸爸走能讓“我”放松下來。32解析：選B空后說這次旅行提醒“我”，爸爸總是在“我”身邊，他點(diǎn)亮了“我”