2026春外研版英语七下Unit 5 Amazing nature-单元测试卷（含答案）

外研版七年级下册新教材Unit5Amazingnature单元测试卷学校：__________________姓名：__________________成绩：__________________一、单项选择1.Myhometownisfamous____itsbeautifulmountainsandclearwaters.A.forB.asC.toD.withThecoloroftheskyis____blue.A.akindofB.kindsofC.kindofD.allkindsofThemountainsinmyhometownare____thanthoseinotherplaces.A.highB.higherC.highestD.thehighestThereare____flowersinthegarden.A.alotB.alotofC.lotofD.lotsTheDeadSeais____saltierthananyothersea.A.veryB.muchC.moreD.tooTherainforestistheonlyhomeformanyplantsandanimals,weshould____it.A.protectB.polluteC.destroyD.wastePeoplearecuttingdowntreesintheforest,____theanimalsarelosingtheirhomes.A.becauseB.soC.butD.orTheglacieris____beautifulthatmanytouristscometovisitit.A.soB.suchC.veryD.tooThewaterinthelakeisveryclear,youcansee____fishinit.A.hundredofB.hundredsofC.twohundredsD.twohundredsofWeshouldstopclimatechange,____theearthwillbecomemoreandmorebeautiful.A.soB.becauseC.butD.orThenationalparkisagreatplace____nature.A.toenjoyB.enjoyC.enjoyingD.enjoyedThesunsetinmyhometownis____thanthatinthecity.A.morebeautifulB.beautifulC.mostbeautifulD.themostbeautifulTheplantsintherainforestarevery____totheenvironment.A.useB.usedC.usefulD.uselessThemountainsintheareaarecoveredwith____snowinwinter.A.whiteB.awhiteC.thewhiteD.whitesThenaturalwonderis____amazingthatpeoplecan'tbelievetheireyes.A.soB.suchC.veryD.too二、完形填空Myhometownisinaveryspecialplace.Itislocatedonthe1.Thesceneryhereistrulyamazing.Whenyoulookaround,youcanseewhite2floatingintheblueskylikesoftcottonballs.Themountainsstandtalland3underthesunlight,justlikehugewhitelotusflowers.The4hereisalsoveryunique.Therearesomanydifferentshadesofblueintheriversandlakes.It'shardtodescribehowbeautifulitis.Thewaterissoclearthatyoucanseethebottominsomeplaces.Andthegrasslands,forests,andfieldsareall5.That'smyfavoritecolorbecauseitrepresentshopeandlife.Trainsarerunningthroughtheplateau,whichaddsamoderntouchtothisnaturalbeauty.Theyseemtobeapartofthelandscape,6withthesurroundingnatureharmoniously.However,notallnaturalwondersareinsuchagoodstate.TaketheDeadSeaforexample.It'snotreallyaseabuta7.Itusedtobeverylargeandbeautiful,butnowit'sfacingabigproblem.Peopletaketoomuchwaterfromtheriversthatflowintoit,anditswaterlevelisgoingdown.Ifthiscontinues,itmay8withinthenext100years.AnotherexampleistherainforestinMadagascar.It'sthehomeofmanyplantsandanimals.Butpeoplearecuttingdownthetreesfor9andtomakespaceforfarming.Thisismakingtherainforestdisappear.Weshouldknowthatthesenaturalwondersarecryingforhelp.Weneedtodosomethingtoprotectthem.Weshould10thatnatureisapreciousgift.Wecanstartfromsmallthings,likereducingwasteandsavingwater.Let'sworktogethertomakesurethattheseamazingnaturalwonderswillalwaysbethereforusandforfuturegenerationstoenjoy.A.plainB.plateauC.valleyD.mountainA.cloudsB.birdsC.kitesD.balloonsA.darklyB.brightlyC.weaklyD.softlyA.soilB.sandC.waterD.stoneA.whiteB.blueC.greenD.yellowA.connectingB.competingC.comparingD.contrastingA.riverB.lakeC.oceanD.pondA.dryupB.fillupC.warmupD.cooldownA.foodB.funC.woodD.spaceA.forgetB.rememberC.ignoreD.destroy三、阅读理解（一）TheAmazonRainforestisoneofthemostamazingnaturalwondersintheworld.ItislocatedinSouthAmericaandcoversalargearea.Therainforestishometocountlessspeciesofplantsandanimals.ManyofthesespeciesarenotfoundanywhereelseonEarth.TheplantsintheAmazonRainforestareverydiverse.Therearetalltreesthatformadensecanopy,andunderneaththerearesmallerplantsandbushes.Theanimalsintherainforestarealsoveryspecial.Therearemonkeys,jaguars,snakes,andmanykindsofbirds.Theseanimalshaveadaptedtotheuniqueenvironmentoftherainforest.However,theAmazonRainforestisfacingseriousthreats.Peoplearecuttingdowntreesfortimberandtoclearlandforfarmingandcattleranching.Thisisdestroyingthehabitatsofmanyanimalsandplants.Inaddition,theillegalhuntingofanimalsisalsoaproblem.WemusttakeactiontoprotecttheAmazonRainforest.Wecansupportconservationorganizationsandencouragepeopletousesustainableproducts.Ifwedon'tactnow,thispreciousnaturalwondermaydisappearforever.WhereistheAmazonRainforestlocated?A.InAfrica.B.InAsia.C.InSouthAmerica.D.InNorthAmerica.WhyistheAmazonRainforestimportant?A.Becauseithasalotoftalltrees.B.Becauseitishometomanyuniquespeciesofplantsandanimals.C.Becauseitisagoodplaceforfarming.D.Becauseitisatouristattraction.WhatarethethreatstotheAmazonRainforest?A.Onlycuttingdowntrees.B.Onlyillegalhunting.C.Cuttingdowntreesandillegalhunting.D.Climatechange.WhatcanwedotoprotecttheAmazonRainforest?A.Cutdownmoretrees.B.Huntmoreanimals.C.Supportconservationorganizationsandusesustainableproducts.D.Ignoretheproblem.（二）MountEverestisthehighestmountainintheworld.ItislocatedintheHimalayasontheborderbetweenNepalandChina.ClimbingMountEverestisagreatchallengeformanymountaineers.Theweatherconditionsonthemountainareextremelyharsh.Therearestrongwinds,lowtemperatures,andthinair.However,despitethedifficulties,manypeoplestillattempttoclimbit.Theyareattractedbythebeautyandthesenseofachievementthatcomeswithreachingthesummit.Inrecentyears,thenumberofclimbershasincreased.Thishasledtosomeproblems,suchasovercrowdingonthemountainandenvironmentalpollution.Someclimbersleavetheirtrashonthemountain,whichisharmfultotheenvironment.WeshouldrespectnatureandprotecttheenvironmentwhenclimbingMountEverest.Weshouldalsofollowtherulesandregulationssetbytheauthorities.Onlyinthiswaycanweensurethesustainabledevelopmentofmountaineeringactivitiesandprotectthismagnificentnaturalwonder.5.WhereisMountEverestlocated?A.InNepalonly.B.InChinaonly.C.OntheborderbetweenNepalandChina.D.InIndia.6.WhydopeopleclimbMountEverest?A.Becauseitiseasy.B.Becausetheywanttochallengethemselvesandexperiencethesenseofachievement.C.Becausetheydon'tlikeothermountains.D.Becausetheywanttomakemoney.7.Whataretheproblemscausedbytheincreasingnumberofclimbers?A.Onlyovercrowding.B.Onlyenvironmentalpollution.C.Overcrowdingandenvironmentalpollution.D.Climatechange.8.WhatshouldwedowhenclimbingMountEverest?A.Leavetrashonthemountain.B.Ignoretherulesandregulations.C.Respectnatureandprotecttheenvironmentandfollowtherules.D.Climbwithoutpermission.（三）TheGrandCanyonisafamousnaturalwonderintheUnitedStates.ItisahugecanyonthatwasformedbytheColoradoRiverovermillionsofyears.Thecanyonisverydeepandwide.Itisagreatplaceforsightseeing.YoucanseedifferentlayersofrocksthattellthestoryoftheEarth'shistory.Thecolorsoftherocksarealsoverybeautiful,especiallyatsunriseandsunset.TherearemanyactivitiesthatyoucandoattheGrandCanyon.Youcangohikingalongthetrails,takeahelicoptertourtoseethewholecanyonfromabove,orgoraftingontheColoradoRiver.However,likemanyothernaturalwonders,theGrandCanyonisalsofacingsomethreats.Theincreasingnumberoftouristsisputtingpressureontheenvironment.Thereisalsotheproblemofpollutionfromhumanactivities.WeshouldtakemeasurestoprotecttheGrandCanyon.Wecanstartbyreducingourwasteandfollowingthepark'sregulations.Weshouldalsoencourageotherstodothesame.Onlyinthiswaycanwepreservethisamazingnaturalwonderforfuturegenerations.9.HowwastheGrandCanyonformed?A.Byanearthquake.B.Byavolcanoeruption.C.BytheColoradoRiverovermillionsofyears.D.Byhumanactivities.10.WhatcanyouseeattheGrandCanyon?A.Onlydeepvalleys.B.Differentlayersofrocksandbeautifulcolors.C.Onlyabigriver.D.Tallmountains.11.WhatactivitiescanyoudoattheGrandCanyon?A.Onlyhiking.B.Hiking,helicoptertour,andrafting.C.Onlyrafting.D.Onlytakingpictures.12.WhatarethethreatstotheGrandCanyon?A.Onlytheincreasingnumberoftourists.B.Onlypollutionfromhumanactivities.C.Theincreasingnumberoftouristsandpollutionfromhumanactivities.D.Climatechange.13.HowcanweprotecttheGrandCanyon?A.Byincreasingthenumberoftourists.B.Byleavingmoretrash.C.Byreducingwasteandfollowingparkregulationsandencouragingotherstodothesame.D.Bybuildingmorehotelsandrestaurantsnearit.WhatmakestheGrandCanyonagreatplaceforsightseeing?A.Itsdeepandwideshape.B.Thedifferentlayersofrocksandbeautifulcolors.C.Thevariousactivitiesavailable.D.Alloftheabove.WhyisitimportanttoprotecttheGrandCanyon?A.Becauseitisasourceofincomeforthelocalarea.B.Becauseitisaplaceforpeopletohavefun.C.BecauseitisapreciousnaturalwonderthattellsthestoryoftheEarth'shistoryandshouldbepreservedforfuturegenerations.D.Becauseitisfamous.四、词汇运用（一）根据首字母或汉语提示完成单词1.Thegrasslandisveryv____foranimalstoliveon.（valuable）Thel____intheparkareverybeautifulinautumn.（leaves）Weshoulds____waterbecauseitisapreciousresource.（save）Thecolorofthesunsetisveryr____.（red）Themountainsinthedistancearec____withsnow.（covered）Theriveristheb____ofthetwovillages.（boundary）Theairintheforestisveryf____.（fresh）Theflowersinthegardenareveryc____.（colorful）Thenaturalparkisagoodplacetoe____nature.（enjoy）Thelakeisveryd____,youcanseethebottomclearly.（deep）（二）用所给单词的适当形式填空1.Themountainismuch____(high)thanthatone.Therearemany____(difference)kindsofplantsintheforest.Thesunsetisoneofthemost____(beauty)sightsIhaveeverseen.Theparkisagoodplaceforpeople____(relax).Weshouldprotecttheenvironmentandmakeit____(good).五、书面表达题目：ANaturalWonderIHaveVisited要求：1.语言表达准确，语意通顺、连贯；2.书写工整、规范；3.根据所给题目，写一篇不少于80词的短文，介绍你曾经参观过的一处自然奇观，包括它的位置、特点以及你的感受。外研版七年级下册新教材Unit5Amazingnature单元测试卷学校：__________________姓名：__________________成绩：__________________一、单项选择1.Myhometownisfamous____itsbeautifulmountainsandclearwaters.A.forB.asC.toD.with答案：A。解析：befamousfor表示“因……而著名”，“我的家乡因美丽的山川和清澈的水而著名”，强调出名的原因，所以选A。befamousas表示“作为……而著名”；befamousto表示“对……来说很著名”；befamouswith搭配错误。Thecoloroftheskyis____blue.A.akindofB.kindsofC.kindofD.allkindsof答案：C。解析：kindof表示“有点儿，稍微”，可修饰形容词，“天空的颜色有点蓝”，符合语境。akindof表示“一种”；kindsof和allkindsof表示“各种各样的”，均不符合句子意思，所以选C。Themountainsinmyhometownare____thanthoseinotherplaces.A.highB.higherC.highestD.thehighest答案：B。解析：than是比较级的标志词，high的比较级是higher，“我家乡的山比其他地方的山更高”，所以选B。high是原级；highest是最高级，但前面需要加the；thehighest是最高级形式，这里是比较级，所以A、C、D选项错误。Thereare____flowersinthegarden.A.alotB.alotofC.lotofD.lots答案：B。解析：alotof=lotsof，表示“许多”，修饰可数名词复数或不可数名词，“花园里有许多花”，所以选B。alot表示“很，非常”，修饰动词、形容词或副词；lotof和lots形式错误。TheDeadSeais____saltierthananyothersea.A.veryB.muchC.moreD.too答案：B。解析：much可以修饰比较级，表示“……得多”，“死海比其他任何海都咸得多”，所以选B。very、too不能修饰比较级；more本身就是比较级，不能再修饰比较级，所以A、C、D选项错误。Therainforestistheonlyhomeformanyplantsandanimals,weshould____it.A.protectB.polluteC.destroyD.waste答案：A。解析：根据“雨林是许多动植物的唯一家园”可知我们应该保护它，protect表示“保护”，所以选A。pollute表示“污染”；destroy表示“破坏”；waste表示“浪费”，均不符合语境。Peoplearecuttingdowntreesintheforest,____theanimalsarelosingtheirhomes.A.becauseB.soC.butD.or答案：B。解析：前半句“人们在森林里砍伐树木”导致了后半句“动物正在失去家园”的结果，so表示因果关系，“所以”，所以选B。because表示原因；but表示转折；or表示选择，所以A、C、D选项错误。Theglacieris____beautifulthatmanytouristscometovisitit.A.soB.suchC.veryD.too答案：A。解析：so...that...表示“如此……以至于……”，so修饰形容词或副词，“冰川如此美丽以至于许多游客来参观”，所以选A。such修饰名词；very表示“非常”；too表示“太”，均不符合该句型结构，所以B、C、D选项错误。Thewaterinthelakeisveryclear,youcansee____fishinit.A.hundredofB.hundredsofC.twohundredsD.twohundredsof答案：B。解析：hundredsof表示“数以百计的，成百上千的”，是固定短语，“湖里的水很清澈，你可以看到成百上千条鱼”，所以选B。hundred前有具体数字时，hundred用单数形式，且后面不接of，所以C、D选项错误；A选项形式错误。Weshouldstopclimatechange,____theearthwillbecomemoreandmorebeautiful.A.soB.becauseC.butD.or答案：A。解析：前半句“我们应该阻止气候变化”会带来后半句“地球会变得越来越美丽”的结果，so表示因果关系，“所以”，所以选A。because表示原因；but表示转折；or表示选择，所以B、C、D选项错误。Thenationalparkisagreatplace____nature.A.toenjoyB.enjoyC.enjoyingD.enjoyed答案：A。解析：agreatplacetodosth表示“一个做某事的好地方”，这里用动词不定式toenjoy作后置定语，“国家公园是一个欣赏自然的好地方”，所以选A。enjoy是原形；enjoying是现在分词；enjoyed是过去式和过去分词，均不符合语法。Thesunsetinmyhometownis____thanthatinthecity.A.morebeautifulB.beautifulC.mostbeautifulD.themostbeautiful答案：A。解析：than是比较级的标志词，beautiful的比较级是morebeautiful，“我家乡的日落比城市里的更美丽”，所以选A。beautiful是原级；mostbeautiful是最高级，但前面需要加the；themostbeautiful是最高级形式，这里是比较级，所以B、C、D选项错误。Theplantsintherainforestarevery____totheenvironment.A.useB.usedC.usefulD.useless答案：C。解析：beusefulto表示“对……有用”，“雨林里的植物对环境非常有用”，所以选C。use是动词“使用”；used是use的过去式或过去分词，也可作形容词表示“二手的，用过的”；useless表示“无用的”，均不符合语境。Themountainsintheareaarecoveredwith____snowinwinter.A.whiteB.awhiteC.thewhiteD.whites答案：A。解析：这里表示“白色的雪”，不需要加冠词，直接用形容词white修饰名词snow，“这个地区的山在冬天覆盖着白雪”，所以选A。awhite表示“一个白色的”；thewhite表示特指的白色；whites复数形式错误。Thenaturalwonderis____amazingthatpeoplecan'tbelievetheireyes.A.soB.suchC.veryD.too答案：A。解析：so...that...表示“如此……以至于……”，so修饰形容词amazing，“这个自然奇观如此惊人以至于人们不敢相信自己的眼睛”，所以选A。such修饰名词；very表示“非常”；too表示“太”，均不符合该句型结构，所以B、C、D选项错误。二、完形填空Myhometownisinaveryspecialplace.Itislocatedonthe1.Thesceneryhereistrulyamazing.Whenyoulookaround,youcanseewhite2floatingintheblueskylikesoftcottonballs.Themountainsstandtalland3underthesunlight,justlikehugewhitelotusflowers.The4hereisalsoveryunique.Therearesomanydifferentshadesofblueintheriversandlakes.It'shardtodescribehowbeautifulitis.Thewaterissoclearthatyoucanseethebottominsomeplaces.Andthegrasslands,forests,andfieldsareall5.That'smyfavoritecolorbecauseitrepresentshopeandlife.Trainsarerunningthroughtheplateau,whichaddsamoderntouchtothisnaturalbeauty.Theyseemtobeapartofthelandscape,6withthesurroundingnatureharmoniously.However,notallnaturalwondersareinsuchagoodstate.TaketheDeadSeaforexample.It'snotreallyaseabuta7.Itusedtobeverylargeandbeautiful,butnowit'sfacingabigproblem.Peopletaketoomuchwaterfromtheriversthatflowintoit,anditswaterlevelisgoingdown.Ifthiscontinues,itmay8withinthenext100years.AnotherexampleistherainforestinMadagascar.It'sthehomeofmanyplantsandanimals.Butpeoplearecuttingdownthetreesfor9andtomakespaceforfarming.Thisismakingtherainforestdisappear.Weshouldknowthatthesenaturalwondersarecryingforhelp.Weneedtodosomethingtoprotectthem.Weshould10thatnatureisapreciousgift.Wecanstartfromsmallthings,likereducingwasteandsavingwater.Let'sworktogethertomakesurethattheseamazingnaturalwonderswillalwaysbethereforusandforfuturegenerationstoenjoy.A.plainB.plateauC.valleyD.mountainA.cloudsB.birdsC.kitesD.balloonsA.darklyB.brightlyC.weaklyD.softlyA.soilB.sandC.waterD.stoneA.whiteB.blueC.greenD.yellowA.connectingB.competingC.comparingD.contrastingA.riverB.lakeC.oceanD.pondA.dryupB.fillupC.warmupD.cooldownA.foodB.funC.woodD.spaceA.forgetB.rememberC.ignoreD.destroy答案及解析1.答案：B解析：根据后文对家乡景色的描述，以及提到的“MyhometownisontheQinghai-TibetPlateau.”，可知这里应选plateau（高原），所以选B。2.答案：A解析：在天空中像柔软棉球一样漂浮的白色物体应该是云（clouds），所以选A。3.答案：B解析：根据“Themountainsstandtalland...underthesunlight,justlikehugewhitelotusflowers.”可知阳光照耀下山脉应该是明亮地（brightly）矗立着，所以选B。4.答案：C解析：后文提到河流和湖泊中有很多不同蓝色色调，可知这里说的是水（water）很独特，所以选C。5.答案：C解析：根据前文对家乡景色的描述以及“That'smyfavoritecolorbecauseitrepresentshopeandlife.”，结合教材中对家乡绿色的描述，可知这里说的是绿色（green），所以选C。6.答案：A解析：火车贯穿高原，与周围自然和谐连接（connecting），符合语境，所以选A。7.答案：B解析：根据“TheDeadSeacoulddie!I'mnotaseabutalake.”可知死海实际上是个湖（lake），所以选B。8.答案：A解析：因为死海的水位在下降，如果继续这样下去，它可能会干涸（dryup），所以选A。9.答案：C解析：人们砍伐树木通常是为了获取木材（wood），所以选C。10.答案：B解析：根据“Weshould...thatnatureisapreciousgift.”可知我们应该记住（remember）大自然是珍贵的礼物，所以选B。三、阅读理解（一）TheAmazonRainforestisoneofthemostamazingnaturalwondersintheworld.ItislocatedinSouthAmericaandcoversalargearea.Therainforestishometocountlessspeciesofplantsandanimals.ManyofthesespeciesarenotfoundanywhereelseonEarth.TheplantsintheAmazonRainforestareverydiverse.Therearetalltreesthatformadensecanopy,andunderneaththerearesmallerplantsandbushes.Theanimalsintherainforestarealsoveryspecial.Therearemonkeys,jaguars,snakes,andmanykindsofbirds.Theseanimalshaveadaptedtotheuniqueenvironmentoftherainforest.However,theAmazonRainforestisfacingseriousthreats.Peoplearecuttingdowntreesfortimberandtoclearlandforfarmingandcattleranching.Thisisdestroyingthehabitatsofmanyanimalsandplants.Inaddition,theillegalhuntingofanimalsisalsoaproblem.WemusttakeactiontoprotecttheAmazonRainforest.Wecansupportconservationorganizationsandencouragepeopletousesustainableproducts.Ifwedon'tactnow,thispreciousnaturalwondermaydisappearforever.WhereistheAmazonRainforestlocated?A.InAfrica.B.InAsia.C.InSouthAmerica.D.InNorthAmerica.答案：C。解析：文中明确提到“ItislocatedinSouthAmerica”，答案是C。A选项“非洲”；B选项“亚洲”；D选项“北美洲”均不符合原文。WhyistheAmazonRainforestimportant?A.Becauseithasalotoftalltrees.B.Becauseitishometomanyuniquespeciesofplantsandanimals.C.Becauseitisagoodplaceforfarming.D.Becauseitisatouristattraction.答案：B。解析：根据“Therainforestishometocountlessspeciesofplantsandanimals.ManyofthesespeciesarenotfoundanywhereelseonEarth.”可知亚马逊雨林重要是因为它是许多独特动植物的家园，答案是B。A选项“有很多高大的树木”不全面；C选项“是个好的耕种地方”与原文保护雨林相悖；D选项“是个旅游景点”不是其重要的主要原因。WhatarethethreatstotheAmazonRainforest?A.Onlycuttingdowntrees.B.Onlyillegalhunting.C.Cuttingdowntreesandillegalhunting.D.Climatechange.答案：C。解析：文中提到“Peoplearecuttingdowntreesfortimberandtoclearlandforfarmingandcattleranching.Thisisdestroyingthehabitatsofmanyanimalsandplants.Inaddition,theillegalhuntingofanimalsisalsoaproblem.”，可知威胁包括砍伐树木和非法捕猎，答案是C。A、B选项不全面；D选项“气候变化”未提及。WhatcanwedotoprotecttheAmazonRainforest?A.Cutdownmoretrees.B.Huntmoreanimals.C.Supportconservationorganizationsandusesustainableproducts.D.Ignoretheproblem.答案：C。解析：根据“Wecansupportconservationorganizationsandencouragepeopletousesustainableproducts.”可知我们可以支持保护组织和使用可持续产品来保护雨林，答案是C。A、B选项会加剧破坏；D选项“忽视问题”不可取。（二）MountEverestisthehighestmountainintheworld.ItislocatedintheHimalayasontheborderbetweenNepalandChina.ClimbingMountEverestisagreatchallengeformanymountaineers.Theweatherconditionsonthemountainareextremelyharsh.Therearestrongwinds,lowtemperatures,andthinair.However,despitethedifficulties,manypeoplestillattempttoclimbit.Theyareattractedbythebeautyandthesenseofachievementthatcomeswithreachingthesummit.Inrecentyears,thenumberofclimbershasincreased.Thishasledtosomeproblems,suchasovercrowdingonthemountainandenvironmentalpollution.Someclimbersleavetheirtrashonthemountain,whichisharmfultotheenvironment.WeshouldrespectnatureandprotecttheenvironmentwhenclimbingMountEverest.Weshouldalsofollowtherulesandregulationssetbytheauthorities.Onlyinthiswaycanweensurethesustainabledevelopmentofmountaineeringactivitiesandprotectthismagnificentnaturalwonder.5.WhereisMountEverestlocated?A.InNepalonly.B.InChinaonly.C.OntheborderbetweenNepalandChina.D.InIndia.答案：C。解析：文中提到“ItislocatedintheHimalayasontheborderbetweenNepalandChina.”，答案是C。A、B选项不全面；D选项“印度”错误。6.WhydopeopleclimbMountEverest?A.Becauseitiseasy.B.Becausetheywanttochallengethemselvesandexperiencethesenseofachievement.C.Becausetheydon'tlikeothermountains.D.Becausetheywanttomakemoney.答案：B。解析：根据“Theyareattractedbythebeautyandthesenseofachievementthatcomeswithreachingthesummit.”可知人们攀登珠穆朗玛峰是因为想挑战自己并体验成就感，答案是B。A选项“容易”与原文困难相悖；C选项“不喜欢其他山”未提及；D选项“想赚钱”未提及。7.Whataretheproblemscausedbytheincreasingnumberofclimbers?A.Onlyovercrowding.B.Onlyenvironmentalpollution.C.Overcrowdingandenvironmentalpollution.D.Climatechange.答案：C。解析：文中提到“Thishasledtosomeproblems,suchasovercrowdingonthemountainandenvironmentalpollution.”，答案是C。A、B选项不全面；D选项“气候变化”未提及。8.WhatshouldwedowhenclimbingMountEverest?A.Leavetrashonthemountain.B.Ignoretherulesandregulations.C.Respectnatureandprotecttheenvironmentandfollowtherules.D.Climbwithoutpermission.答案：C。解析：根据“WeshouldrespectnatureandprotecttheenvironmentwhenclimbingMountEverest.Weshouldalsofollowtherulesandregulationssetbytheauthorities.”可知攀登时应尊重自然、保护环境并遵守规则，答案是C。A、B、D选项均是错误行为。（三）TheGrandCanyonisafamousnaturalwonderintheUnitedStates.ItisahugecanyonthatwasformedbytheColoradoRiverovermillionsofyears.Thecanyonisverydeepandwide.Itisagreatplaceforsightseeing.YoucanseedifferentlayersofrocksthattellthestoryoftheEarth'shistory.Thecolorsoftherocksarealsoverybeautiful,especiallyatsunriseandsunset.TherearemanyactivitiesthatyoucandoattheGrandCanyon.Youcangohikingalongthetrails,takeahelicoptertourtoseethewholecanyonfromabove,orgoraftingontheColoradoRiver.However,likemanyothernaturalwonders,theGrandCanyonisalsofacingsomethreats.Theincreasingnumberoftouristsisputtingpressureontheenvironment.Thereisalsotheproblemofpollutionfromhumanactivities.WeshouldtakemeasurestoprotecttheGrandCanyon.Wecanstartbyreducingourwasteandfollowingthepark'sregulations.Weshouldalsoencourageotherstodothesame.Onlyinthiswaycanwepreservethisamazingnaturalwonderforfuturegenerations.9.HowwastheGrandCanyonformed?A.Byanearthquake.B.Byavolcanoeruption.C.BytheColoradoRiverovermillionsofyears.D.Byhumanactivities.答案：C。解析：文中提到“ItisahugecanyonthatwasformedbytheColoradoRiverovermillionsofyears.”，答案是C。A选项“地震”；B选项“火山爆发”；D选项“人类活动”均不符合原文。10.WhatcanyouseeattheGrandCanyon?A.Onlydeepvalleys.B.Differentlayersofrocksandbeautifulcolors.C.Onlyabigriver.D.Tallmountains.答案：B。解析：根据“YoucanseedifferentlayersofrocksthattellthestoryoftheEarth'shistory.Thecolorsoftherocksarealsoverybeautiful,especiallyatsunriseandsunset.”可知能看到不同层的岩石和美丽的颜色，答案是B。A、C、D选项不全面。11.WhatactivitiescanyoudoattheGrandCanyon?A.Onlyhiking.B.Hiking,helicoptertour,andrafting.C.Onlyrafting.D.Onlytakingpictures.答案：B。解析：文中提到“Youcangohikingalongthetrails,takeahelicoptertourtoseethewholecanyonfromabove,orgoraftingontheColoradoRiver.”，答案是B。A、C、D选项不全面。12.WhatarethethreatstotheGrandCanyon?A.Onlytheincreasingnumberoftourists.B.Onlypollutionfromhumanactivities.C.Theincreasingnumberoftouristsandpollutionfromhumanactivities.D.Climatechange.答案：C。解析：根据“Theincreasingnumberoftouristsisputtingpressureontheenvironment.Thereisalsotheproblemofpollutionfromhumanactivities.”可知威胁包括游客数量增加和人类活动造成的污染，答案是C。A、B选项不全面；D选项“气候变化”未提及。13.HowcanweprotecttheGrandCanyon?A.Byincreasingthenumberoftourists.B.Byleavingmoretrash.C.Byreducingwasteandfollowingparkregulationsandencouragingotherstodothesame.D.Bybuildingmorehotelsandrestaurantsnearit.答案：C。解析：文中提到“Wecanstartbyreducingourwasteandfollowingthepark'sregulations.Weshouldalsoencourageotherstodothesame.”，答案是C。A选项“增加游客数量”会加剧破坏；B选项“留下更多垃圾”错误；D选项“在附近建造更多酒店和餐馆”可能会对环境造成更大压力，均不符合保护大峡谷的措施。WhatmakestheGrandCanyonagreatplaceforsightseeing?A.Itsdeepandwideshape.B.Thedifferentlayersofrocksandbeautifulcolors.C.Thevariousactivitiesavailable.D.Alloftheabove.答案：D。解析：大峡谷深邃宽广的形状、不同层的岩石和美丽的颜色以及多样的活动都使其成为观光的好地方，A、B、C选项都正确，所以答案是D。WhyisitimportanttoprotecttheGrandCanyon?A.Becauseitisasourceofincomeforthelocalarea.B.Becauseitisaplaceforpeopletohavefun.C.BecauseitisapreciousnaturalwonderthattellsthestoryoftheEarth'shistoryandshouldbepreservedforfuturegenerations.D.Becauseitisfamous.答案：C。解析：根据“Itisagreatplaceforsightseeing.