全優(yōu)課堂 英語 高考總復習 課件UNIT 4　JOURNEY ACROSS A VAST LAND

選擇性必修

第二冊UNIT4

JOURNEYACROSSAVASTLAND(本欄目對應學生用書P204)目錄1每日早晚必背2課前語基夯實3考點多維突破4能力優(yōu)化集訓5課時作業(yè)★每日早晚必背假定你是李華，你的澳大利亞筆友James將和家人來中國旅游，想讓你為他推薦一條旅游路線。請你給James回一封郵件。內容包括：

1.行程線路（包含2~3個城市）；2.景點介紹；3.交通方式。注意：1.詞數80左右；2.可適當增加細節(jié)，以使行文連貫。【佳文背誦】DearJames，

Iam

delighted

to

hearthatyouandyourfamilyarecomingtoChinaforavisit.Based

oncarefulconsideration，IwanttorecommendarouteforyourvisittoChina. SinceyouwillarriveinBeijingfirst，youcanvisitthePalaceMuseumandtheGreatWall，bothofwhichare

famous

fortheirlonghistoryandgrandscenery.Thenyoucantakethehigh-speedtraintoXi’an，whereyoucanvisittheamazingTerracottaWarriorsandenjoyawidevarietyofdeliciouslocalfoodthere.Forthe

last

leg

ofyourtrip，IsuggestyouflytoGuilininGuangxiProvince.I’msurethenaturalbeautytherewillleave

a

deep

impression

on

you.

Allthebestwishes！Yours，LiHua【詞匯積累】bedelightedtodo…很高興做……basedon基于；根據recommendv.推薦befamousfor…因……而出名thelastlegof………的最后階段leaveadeepimpressiononsb給某人留下深刻的印象【句式仿寫】1.這個省有七大自然奇觀，其中有三個離你不遠。（“介詞+which”引導非限制性定語從句）Therearesevennaturalwondersinthisprovince，

notfarfromwhereyouare.

2.我建議你盡快做決定并訂好票。（suggest+賓語從句）

adecisionandbooktheticketsassoonaspossible.

threeofwhichareIsuggestyou（should）make?高頻重點詞匯◎核心詞匯

會運用1.

adj.準備前往（某地）；一定會

2.

adj.令人驚嘆的；可怕的；很好的

3.

n.烤面包片；吐司；干杯

vt.為……干杯vt.&

vi.烤（尤指面包）4.

n.口音

5.

n.窗簾

★課前語基夯實boundawesometoastaccentcurtain6.

vi.行進；繼續(xù)做

7.

adv.（結束交談或轉換話題時）不過；反正

8.

n.國界；邊界（地區(qū)）

9.

n.最好或最精彩的部分

vt.突出；強調；使醒目10.

vi.起身；出現(xiàn)；由……引起

11.

n.束；串；捆

12.

adj.相反的；相對立的n.相反的事實（或事情）

proceedanyhowborderhighlightarisebunchcontrary【語境活用】根據漢語提示完成句子1.

（精彩之處）includeChina’smostsacredpeaksatMountTaiandHangzhou’srollinghills，waterwaysandpeacefultemples.

2.Astopresents，IproposethatyoushouldchoosesomewithNewZealandfeatures，whichis

（一定會）towinyourfriend’saffection.

Highlightsbound3.Anumberofhighbuildingshave

（出現(xiàn)）wheretherewasnothingbutruinsayearago.

4.ThereisanannouncementthatpassengersforRomeshould___________

（行進）toGate32forboarding.

5.PeoplefromdifferentpartsoftheUKspeakdifferently，sotherearelotsofdifferent

（口音）.

arisenproceedaccents◎拓展詞匯

能提升1.

adj.令人愉快的；友好的→

n.高興；快樂→

adj.高興的；滿意的

2.

n.大量；塊；團→

adj.巨大的；非常嚴重的

3.

adj.逐字的→

adv.

字面上；真正地→

n.文學

4.

n.呼吸的空氣→

v.呼吸→

adj.氣喘吁吁的

pleasantpleasurepleasedmassmassiveliteralliterallyliteraturebreathbreathebreathless5.

vi.

&

vt.結冰；（使）凍住→

adj.極冷的；冰凍的→

adj.冷凍的；凍僵的

6.

vt.預料；預見；期望→

adj.受期待的→

n.預期；預料

7.

n.霜；嚴寒天氣；霜凍vt.使蒙上霜vi.結霜→

adj.結霜的；天氣嚴寒的；冷淡的

8.

n.最好或最精彩的部分vt.突出；強調；使醒目→

adj.突出的

freezefreezingfrozenanticipateanticipatedanticipationfrostfrostyhighlighthighlighted9.

n.岸；濱→

adv.在岸上

adj.在岸上的；在陸上的→

n.海（湖）岸線

10.

vt.使十分驚訝；使吃驚→

adj.令人吃驚的→

感到十分驚訝的→

n.吃驚；驚訝

11.

n.薄霧；水汽→

adj.多霧的；模糊的

12.

n.（informalad）廣告；啟事→

v.宣傳；為……做廣告→

n.登廣告者；廣告商

shoreashoreshorelineastonishastonishingastonishedastonishmentmistmistyadvertisementadvertiseadvertiser13.

n.鋼；鋼鐵工業(yè)→

adj.鋼鐵般的；頑強的；冷酷的

14.

n.相片v.（給……）拍照→

n.攝影師；拍照者→

n.攝影

15.

vi.打雷；轟隆隆地響；轟隆隆地快速移動n.雷聲；轟隆聲→

adj.雷鳴般的；怒氣沖沖的

16.

vt.欠（賬、債、情等）→

adj.拖欠；未付；未償還

steelsteelyphotographphotographerphotographythunderthunderousoweowing【語境活用】使用所給單詞的適當形式填空1.Itis

outsidenow，andmoresnowisfallingonalready

streets.（freeze）

2.Tomy

，hedidn’tfeel

atthe

newsthattwofileshadgonemissing.（astonish）

3.Facingthetask，hetookseveral

tocalmhimselfdown.Afterfinishingit，he

asighofrelief.（breathe）

freezingfrozenastonishmentastonishedastonishingbreathsbreathed4.WhenIchosetomakethisvideo，Iwantedtocapturethefeelingofwonderand

andshowtheaudiencehowvastand

theuniverseis.（awe）

5.Whenpracticingforinterviews，he

somequestionsandgotready.Thenhewaited，nervousbutfullof

.（anticipate）

6.Therareanimalsaredisappearingonsucha

scalethatpeopleareshockedatthe

extinction.（mass）

aweawesomeanticipatedanticipationmassivemass?高頻短語串記※單元短語再現(xiàn)【語境活用】選用所給短語的適當形式填空1.

wateringrowsofsoil，thesystemprovidesjusttherightamounttoeachplant.

2.Ibelievethathisspeech

inspirelotsofteenagers.

takesb.’sbreathaway；freezingcold；proceedto；abunchof；owe…to…；contraryto；ratherthan；beboundtoRatherthanisboundto3.Theirsuccess

more

goodluckthantocarefulmanagement.

4.

popularbelief，manycatsdislikemilk.

5.Itwas

outside，soIdidn’twanttogetoutofthecar.

6.Visitorsleavingforthemuseumshould

thenextentrance.

7.Youmightliketoadd

freshherbstothestock.

8.WewenttoHainanwheretheblueseaandtheclearsky

.

owestoContrarytofreezingcoldproceedtoabunchoftookourbreathaway?重點句型仿寫1.含有not

until的強調句型Itwasnotuntil9：30a.m.thattheyfinallyreachedthecapitalofOntario，Toronto.

直到上午9點30分，他們才終于到達安大略省的首府多倫多。［仿寫］

（直到半夜）hegothomeyesterday.

Itwasnotuntilmidnightthat2.as

soon

as引導時間狀語從句Wewenttobedassoonaswearrivedatthehotelbecauseweweresotired.

［仿寫］

（蛋糕一烤好），removeitfromtheoven.

Assoonasthecakeisdone3.省略if的虛擬句的倒裝Shouldtheopportunityarise，I’dlovetogotoCanada.

如果將來有機會，我很想去加拿大。［仿寫］

（如果下雨）tomorrow，wewouldnotgoclimbing.

Shoulditrain?詞匯精磨1.arise

vi.起身；出現(xiàn)；由……引起（arose；

arisen）【探究歸納】★考點多維突破【典例示范】Severalnewindustriesaroseinthetown.城里出現(xiàn)了好幾種新行業(yè)。Thecivilwararose

fromthesocialinjusticespresentinthecountry.內戰(zhàn)是由該國內部現(xiàn)存的社會不公所引起的?！就卣固嵘吭~匯過去式/分詞詞義與用法示例arisearose；arisen不及物動詞，意為“起身；出現(xiàn)；由……引起”Anewproblemhasarisen.一個新的問題出現(xiàn)了。riserose；risen不及物動詞，意為“上升；升起；增長”Thesunrisesintheeast.太陽從東方升起。raiseraised；raised及物動詞，意為“籌集；舉起；提高；飼養(yǎng)，撫養(yǎng)”Heraisedhishandtoanswerthequestion.他舉手回答問題?！炯磳W即練】猜測黑體詞的含義/完成句子（1）Seeinghismotherreturnhome，theboyarosefromhischairimmediately.

（2）Iamconfidentthatnewopportunitieswillariseandthatyouwillultimatelyachieveyourambition.

（3）Theyaroseatsunrisetogettotheparkearly.

起身出現(xiàn)起床（4）身體不適會引起情緒問題，所以保持身體健康很重要。Mentalproblemscan

aphysicalcause，soitisveryimportanttostayphysicallyhealthy.

arisefrom/outof2.bound

adj.準備前往（某地）；一定會【探究歸納】【典例示范】Ifyoufollowmysuggestions，Ibelieveyouare

bound

to

haveagreattime.如果你聽從我的建議，我相信你一定會玩得很開心?！炯磳W即練】單句語法填空/完成句子（1）You’vedonesomuchwork—you’rebound

（pass）theexam.

（2）Wearebound

Beijingtoattendhisanniversaryofmarriagenextweek.

（3）他工作太忙，沒有很多時間陪孩子。He

hisworktohavemuchtimeforhischildren.

topassforistooboundupin3.freeze

vi.&

vt.結冰；（使）凍住【探究歸納】【典例示范】Ifwedon’tdosomethingsoon，we’llallfreeze

to

death.如果再不采取措施，我們都會被凍死的。Andifsomethinglikethat’severhappenedtoyou，youmightevenfreeze

upandfeelreallyawkward.如果這種事情發(fā)生在你身上的話，你可能會不知所措并感到非常尷尬。【即學即練】單句語法填空/完成句子（1）Thetemperatureremainedbelow

（freeze）pointthroughouttheday.

（2）Thesnowhadmelted，butthelakewasstill

（freeze）solid.

（3）天氣變得如此寒冷，他擔心自己會凍死。Theweatherturnedsocoldthathewasafraidthathemight

.

freezingfrozenfreezetodeath（4）每次你需要和面試官用英語交流的時候就愣在了那里。EverytimeyouneedtocommunicatewiththeinterviewerinEnglish，you

.

freezeup4.astonish

vt.使十分驚訝；使吃驚【探究歸納】【典例示范】Hewasastonishedtoseehowhishometownhadchangedinthepast10years.他驚訝地看到他的家鄉(xiāng)在過去的十年里發(fā)生了多么大的變化?！炯磳W即練】單句語法填空/同義句轉換（1）Whenhelookedatthemenu，an

（astonish）lookquicklyappearedonhisface.

astonished

（2）Giventhe

（astonish）potentialofAItotransformourlives，weallneedtotakeactiontodealwithourAI-poweredfuture.

（3）Tomyastonishment，shedidn’tcareaboutmyfeelings.→Shedidn’tcareaboutmyfeelings，

.（定語從句）

→

shedidn’tcareaboutmyfeelings.（it作形式主語）

→

shedidn’tcareaboutmyfeelings.（主語從句）

astonishingwhichastonishedmeItwasastonishingthatWhatastonishedmewas5.owe

vt.欠（賬、債、情等）【探究歸納】【典例示范】Shestillowesherfather￡3，000./Shestillowes

￡3，000toherfather.她還欠她父親3000英鎊?！炯磳W即練】單句語法填空/完成句子（1）IknewthatIowedmylife

thedoctorsandnurses.

to（2）

（owe）tohisillness，Petercouldn’tkeepupwiththerestoftheclass.

（3）他去年夏天買東西欠的錢還沒還。Hestill

whatheboughtlastsummer.

（4）我覺得你應該給自己放一天假。Ithinkyou

adayoffwork.

Owingowesforoweittoyourselftohave6.take

sb.’s

breath

away

令人驚嘆【探究歸納】【典例示范】Shewassoonout

of

breath，butshedidn’tgiveup.她很快就上氣不接下氣，但她沒有放棄。Johnheld

his

breathandwonderedwhatwouldhappennext.約翰屏住呼吸，想知道接下來會發(fā)生什么事?！炯磳W即練】單句語法填空/完成句子（1）Asweroundedacurve，awaterfalltookourbreath

.

away（2）Hetookadeep

（breathe）beforehewentunder.

（3）Iheldthedryfloweruptomynoseand

（breathe）inthesmellofabeautifulrose.

（4）當我們氣喘吁吁地到達車站時，火車已經離開一個小時了。Whenwegottothetrainstation

，thetrainhadleftforhalfanhour.

breathbreathedoutofbreath?句型透視1.（教材P41）Wewenttobedas

soon

as

we

arrived

at

the

hotelbecauseweweresotired.

我們一到旅館就上床睡覺了，因為我們太累了。【句式提煉】該句是由“assoonas”引導的時間狀語從句。【歸納拓展】語法現(xiàn)象assoonas表示“一……就……”結構特點assoonas引導的狀語從句的時態(tài)通常與主句保持一致，但有時也遵循“主將從現(xiàn)”原則同義表達instantly/immediately，theminute/moment/instant，on/upon+v.-ing等【典例示范】On/Upon

arrivinginBeijing，hecalledmeup.他一到北京就給我打了電話。Meowingstartsas

soon

asababycatisbroughttolifeandusesittogetthemother’sattentionandbefed.貓寶寶一出生就開始喵喵叫，喵喵叫是為了引起媽媽的注意，讓媽媽給它喂食?！炯磳W即練】同義句轉換Hegotdowntobusinessassoonashesatatthedesk.→Hegotdowntobusiness

hesatatthedesk.（用副詞引導從句）

→Hegotdowntobusiness

hesatatthedesk.（含有the的短語）

immediately/instantlythemoment/minute/instant2.（教材P39）It

was

not

until

9：30

a.m.thattheyfinallyreachedthecapitalofOntario，Toronto.

直到上午9點30分，他們才終于到達安大略省的首府多倫多?！揪涫教釤挕勘揪涫且粋€含有“notuntil”的強調句型?！練w納拓展】句型Itis/wasnotuntil…that/who…特點由于not已經前移，that后面的句子應改為肯定句常考點填寫that/who或it注意和not…until…的倒裝句要分清【典例示范】It

was

not

untilAlicehadababyofherownthatshebecameawarehowharditwasforhermothertohavebroughtuphersisterandheronherown.直到愛麗絲有了自己的孩子，她才意識到她的母親養(yǎng)育她的妹妹和自己是多么的艱難?！炯磳W即練】單句語法填空/同義句轉換（1）Itwasthedaybeforeyesterday

Ilearnedaboutthenews.

（2）Notuntilshecalledthemanager’ssecretarythreetimes

（be）shetoldthatthemanagerwenttoanimportantmeeting.

（3）Themanwasnotabletospeakuntilatleastthirtysecondshadpassed.→

atleastthirtysecondshadpassed

themanwasabletospeak.

thatwasItwasnotuntilthatⅠ.語境辨義根據語境寫出黑體詞的詞性及含義1.Butwiththisopeningofwhathadbeenamostlyclosedsystem，possibilitiesemerge，

literallywithoutlimit.

2.Therehadbeenamassivesearchunderway.

3.Hotelroomsaredifficulttofindatthepeakoftheholidayseason.

★能力優(yōu)化集訓adv.真正地adj.大量的；大規(guī)模的n.頂峰4.Nothingelsebigwashappeningintheworldandnewspaperslovetohighlightproblemsthatthetelevisionnetworksface.

5.Theseworkshops，usuallyofoneortwodays’

duration，bringteachersandindustrialmanagerstogether.

6.Unlessyourecogniseanidiomwhenitisbeingused，itiseasytomisunderstandwhatyoureadorhear.

7.TherearealsosomeinterestingoldbuildingstoseearoundtheShoreandattheold-worldfishingharbourofNewHaven._________________vt.強調n.持續(xù)時間n.習語；成語n.（海）港Ⅱ.單句語法填空1.Ifirmlybelievethatyouarebound

（lead）anideallifewithyourconsistentefforts.

2.Playerswhoproceed

thefinalsofthecompetitionareallfromChina.

3.Heconsumedsomuchfoodatatime，whichgreatly

（astonish）me.

4.Inthepastfewyears，differentcategoriesofcellphones______________

（arise）.

toleadtoastonishedhavearisen5.It’shightimethatI

（toast）thesuccessofyourassociation.

6.Totellthetruth，thespectacularsceneryliterallytookmy____________

（breathe）away.

7.The

atmosphereintheroomgreatly

me，whichbroughtmemuch

.（please）

8.The

has

manyfamousfilmstars.（photograph）

toasted/shouldtoastbreathpleasant/pleasingpleasedpleasurephotographerphotographed9.Imustputan

inanewspaperto

mynewshop.（advertise）

10.Ona

day，wecouldonlyseetheoutlineofthehousethroughthe

.（mist）

advertisementadvertisemistymistⅢ.選詞填空用本單元所學詞匯完成下列短文，并背誦該短文。（黑體詞匯為本單元詞匯）takesb.’sbreathaway；proceedto…；owe…to…；contraryto；freezingcold；beastonishedtoAphotographerwasenrolledinawintercampandona1.

.day，heboardedthetrainboundforaharbourcity.Theanticipatedarrivaltimewassixintheevening.Drawingbackthecurtain，he2..

__________seemistycloudsfloatingonthepeaksofamassivemountains.3.

hisinitialbelief，whatheconsideredboringonthetrainprovedtobeoneofthehighlightsoftheawesometrip.Withthetrainthunderingon，hereachedthedestinationatdusk.Spectacular

sceneryandpleasantfreshairliterally

4.

.Tallbuildingsofglassandsteel

aroseeverywhere.HewasattractedbytheexceptionalfreezingcoldwasastonishedtoContrarytotookhisbreathawayadvertisementsintheshoppingmall，sellingcrafts，antiquesandbunchesofflowers.Feelingalittlehungry，heboughtapieceoftoastinthesupermarketalongsidethestreet，wherehechattedwithpeoplewithdifferentaccents.Anyhow，he5.

hishappiness

thewintercamp.Thenextevening，hewould6.

thenextstop.

owedtoproceedtoⅣ.微寫作根據漢語提示并運用本單元的詞匯和語法寫一段話去年夏天，我和朋友做出了我們一定要一起旅游的決定。因為這是我們第一次出國旅行，所以我們在網上瀏覽了大量的信息。我們被一則環(huán)游北美的廣告吸引了。最后，我們決定前往加拿大，那里的壯觀風光讓我們嘆為觀止。當然，在這一周的時間里，我們體驗了當地的文化和傳統(tǒng)。然而，最讓我們驚奇的是美食，比如咖啡、烤面包片和奶酪?！敬鸢浮縊nepossibleversion：Lastsummer，myfriendandImadeadecisionthatwewereboundtotraveltogether.Becauseitwasourfirsttimetotravelabroad，welookedthroughmassiveinformationonline.WewereattractedbyanadvertisementoftravellingaroundNorthAmerica.Atlast，wedeterminedtoproceedtoCanadawhosespectacularscenerytookourbreathaway.Ofcourse，intheoneweek’sduration，weexperienceditscultureandtraditions.However，whatastonishedusmostwasthedeliciousfood，suchascoffee，

toast，andcheese.（本欄目對應課時作業(yè)P523）Ⅰ.閱讀理解ACyclingincitieswithproperbikinginfrastructure（基礎設施）cangivepeopleacloserexperienceoftravellingaroundaplacethatcarsandbusessimplycan’t.Herearefourcycle-friendlycitiesaroundtheworld.Utrecht，

NetherlandsWhiletheNetherlands’mostpopulouscity，Amsterdam，isdefinitelybikefriendly，we’reheadingsoutheasttoUtrecht，acitythathasafairclaimtobeingtheglobe’smostpro-two-wheeldestination.Initscentre，upto50%ofalljourneystakeplacebybikeandlocalauthoritiesarebuildinga12，500-spacecycleparkingfacilityadvertisedastheworld’sbiggest.Copenhagen，

Denmark

MorethanhalfthelocalsintheDanishcapitalcycletoworkorschool，andwithanestimatedbikepopulationof650，000thereareslightlymorecyclesthanpeople.Cityleadersdeterminenotjustonincreasingbikeusefurther，butpromotingsafebikeinfrastructurethatfeaturesbikelanes（車道）ofuptothreemetresinwidth.

Berlin，

Germany

Germanyhasbeenquietlygettingonwithboostingbikeuseinmanyofitscities.Berlinisthestandoutexample.About13%ofalltripsinthecityaremadebybike，nearlytwicetherateof20yearsago.Tokyo，

Japan

Inthisvastcapitalcity，anamazing14%ofalltripsaremadebybike.TherearepracticalreasonswhymanyTokyoresidentspreferabiketoacarforshorterjourneys.Beforeyoucanevenbuyacarinthecity，youmustproveyoupossessanoff-streetparkingspot（thatisusuallyexpensive）.However，fewpeoplecycletowork—distancestendtobelong，andpublictransportishugelyefficient.Also，alotofcyclingtakesplace—legally—onfootpathsandsidewalks.1.WhatisspecialaboutUtrecht？A.IthasamuchlargerpopulationthanAmsterdam.B.Itistheonlycycle-friendlycityinNetherlands.C.Cyclingaccountsforabouthalfoftripsdowntown.D.Ithastheworld’slargestnon-cyclingpopulation.√1.細節(jié)理解題。根據Utrecht，Netherlands部分中的“Initscentre，upto50%ofalljourneystakeplacebybike”可知，烏得勒支省的特殊之處在于騎自行車約占市中心出行的一半。故選C項。2.Whichcitytakessecurityintoconsiderationwhenbuildingbikeinfrastructure？A.Utrecht. B.Copenhagen.C.Berlin. D.Tokyo.√2.細節(jié)理解題。根據Copenhagen，Denmark部分中的“…promotingsafebikeinfrastructurethatfeaturesbikelanes（車道）ofuptothreemetresinwidth.”可知，哥本哈根在修建自行車基礎設施時會考慮安全因素。故選B項。3.WhydosomecitizensinTokyohaveapreferenceforabicycle？A.Theyprefertotravellongdistancesbybike.B.Theyarenotallowedtocycleonsidewalks.C.Theyhavenoeasyaccesstobusesortrains.D.Theyprobablycan’taffordaparkingplace.√3.推理判斷題。根據Tokyo，Japan部分中的“Beforeyoucanevenbuyacarinthecity，youmustproveyoupossessanoff-streetparkingspot（thatisusuallyexpensive）.”可知，一些東京市民偏愛自行車可能是因為他們買不起停車位。故選D項。【答案】【語篇解讀】本文是一篇應用文。文章介紹了全球四個適合騎行的城市。BAtinyAlaskavillagehasexperiencedaboomintourisminrecentyearsaspolarbearsspendmoretimeonlandthanonArcticseaice.Morethan2，000peoplevisitedthenorthernAlaskavillageofKaktovikin2018toseepolarbearsinthewild.Thefarnorthcommunityliesinanareawhereincreasinglyhighertemperaturehasspedupthemovementofseaice，theprimaryhabitatofpolarbears.Asicehasgraduallymovedtodeepwaterbeyondthecontinentalshelf，morebearsareremainingonlandtolookforfood. PolarbearshavealwaysbeenacommonsightonseaicenearKaktovik，butvillagersstartednoticingachangeinthemid-1990s.Morebearsseemedtostayonland，andresearchersbegantakingnoteofmorefemalebearsmakinghomesinthesnowonlandinsteadofontheicetoraisetheirbabies.USAFishandWildlifeServicebiologistsbeganhearingreportsoftheincreasingnumberofpolarbearsintheareaintheearly2000s.Asmoreattentionwasgiventotheplight（困境）ofpolarbearsaboutadecadeago，moretouristsstartedheadingtoKaktovik. Thevillagehadfewerthan50visitorsannuallybefore2011，saidJenniferReed，aworkeroftheArcticNationalWildlifeRefuge.“Todaywe’retalkingabouthundredsandhundredsofvisitors，manyfromaroundtheworldeachyear，”Reedsaid.Mosttouristsvisitinthefall，whenbearsareforcedtowardlandbecauseseaiceisfarthestawayfromtheshore.BruceInglangasak，alocalhunterwhosometimesofferswildlife-viewingtours，saidhe’sbeenofferingpolarbeartourssince2004.MostofhisclientsarefromChinaandEurope，aswellasfromthelower48USAstates.Manytouristsstayseveraldaysinthevillage，whichhastwosmallhotels.Thevillagershavebenefitedalotfromthat.Inturn，theyprovidemoreeffectiveprotectionforpolarbearswithfinancialsupportfromtourismdevelopment.4.WhatcausesmorepolarbearstostayonlandinKaktovik？A.Foodshortage.B.Climatechange.C.Habitats’movementtoshore.D.Theirpreferenceforland.√4.細節(jié)理解題。根據第二段中的“…increasinglyhighertemperaturehasspedupthemovementofseaice，theprimaryhabitatofpolarbears.Asicehasgraduallymovedtodeepwaterbeyondthecontinentalshelf，morebearsareremainingonlandtolookforfood.”可知，全球變暖加速了海冰融化，破壞了北極熊原本的棲息地，所以越來越多的北極熊待在陸地上以尋找食物。故選B項。5.Howdidcommonpeoplefeelaboutmoresightofbearsonland？A.Excited. B.Puzzled.C.Concerned. D.Shocked.√5.推理判斷題。根據第三段中的“Morebearsseemedtostayonland，andresearchersbegan…toraisetheirbabies.”和“Asmoreattentionwasgiventotheplight（困境）ofpolarbearsaboutadecadeago，moretouristsstartedheadingtoKaktovik.”可知，隨著越來越多的北極熊出現(xiàn)在陸地上，研究人員、生物學家等也越來越多地關注北極熊所處的這一困境，隨后，更多游客前往Kaktovik。由此可推知，大眾對更多北極熊登上陸地的現(xiàn)象表示關注。故選C項。6.Whatcanbeinferredfromthelastparagraph？A.HotelsinKaktovikareindemandinautumn.B.Kaktovikhasabout50visitorsannually.C.Inglangasakmakesalivingasatourguide.D.Tourismaffectsthebalanceofnature.√6.推理判斷題。根據最后一段中的“Mosttouristsvisitinthefall”和“Manytouristsstayseveraldaysinthevillage，whichhastwosmallhotels.”可知，大多數游客會選擇在秋季參觀Kaktovik，而且很多游客會在這個小村莊待上幾天，而這個小村莊只有兩個小旅館。由此推知，在秋季，Kaktovik的旅館的需求量很大。故選A項。7.Whichsayingcandescribethetext？A.Thefittestcansurvive.B.Afterastormcomesacalm.C.Thereisalwaysopportunityincrisis.D.Everycoinhastwosides.√7.推理判斷題。通讀全文內容，尤其第一段“AtinyAlaskavillagehasexperiencedaboomintourism…”第三段中的“Asmoreattentionwasgiventotheplight（困境）ofpolarbears”和最后一段中的“Thevillagershavebenefitedalotfromthat.Inturn，they…development.”可知，北極熊被迫登上陸地原本是一種困境，但卻促進了一個村莊的旅游業(yè)的發(fā)展。D項“事物都有兩面性”可以描述本文介紹的內容。故選D項?！敬鸢浮?/p>

【語篇解讀】本文是一篇說明文。氣候變暖導致海冰融化，北極熊待在陸地，為阿拉斯加的一個小村莊帶來了巨大的人氣，促進了當地旅游業(yè)發(fā)展，當地人又用旅游業(yè)的收入為北極熊提供積極的保護。C

Ifyou’veeverworriedthatwe’vesolvedallthemysteriesofnature，fearnot.Minnesota’sDevil’sKettleFallshasbeenattractinghikersandgeologistsforgenerations.Atthefalls，alongLakeSuperior’sNorthshore，ariverforksatarockoutcrop.Whileonesiderunsdownatwo-stepstonebankandcontinuesonlikeanormalwaterfall，theothersidevanishesintoadeepholeanddisappearsapparentlyforever. AndthisbafflingsituationonlygetsstrangewhengeologistsstartexplainingDevil’sKettle.Consider，forinstance，thesheerquantityofwaterpouringintothekettleeveryminuteofeveryday.Whiletheideaofsomekindofbroad，undergroundriverisanexcitingdeviceinmovies，therealityisthatthosesortsofdeepcavesarerare. Anotherideaisthatmillionsofyearsago，ahollowlavatubemayhaveformedbeneaththefalls，inthesubsurfacelayerofbasalt（玄武巖）.Overtime，thetheorysuggests，thefallingwatereroded（侵蝕）thesurfaceandfellstraightdownintotheancientlavatube，providingwide-openaccesstothefloorofLakeSuperior.Again，thereareproblemswiththistheory，becausenolavatubeshaveeverbeenfoundinanyofthehundredsofexposedbasaltbedsinthearea. InFebruary2017，scientistssaidthatwaterthatdisappearsintotherockatDevil’sKettleresurgesinthestreambelowthefalls.Toconfirmthetheory，scientistsplanonconductingadyetraceduringalow-waterflowperiod.They’llpouravegetable-baseddyeintothepotholeandwatchwherethedyeresurfaces.Thisisafluorescent（發(fā)熒光的）biodegradabledyethat’snoticeableat10partsperbillion，sothescientistswilluseonlyafewquarts. “Whatwethinkishappeningisthewaterisgoinginthekettle，andcomingupprettyclosetoimmediatelydownstreamofthefalls，”Greensaid.

Greenadmitsthatifthedyeisfoundbelowthefallslikethescientistssuspect，thenmuchoftheDevil’sKettleFallsmysterywillbegone.“There’salittlebitofthat，”hesaid，“thatfolksaren’tgoingtostandthereandwonder.Butitwillstillbeafascinatingspot，andabeautifulspot.”8.Whatisthepurposeofwritingthefirstparagraph？A.Toexplaintheformationofwaterfalls.B.Tointroduceamysteriousnaturalphenomenon.C.Todescribeabeautifullandscapescene.D.Torecommendanunusualwaterfalltoreaders.√8.推理判斷題。通讀第一段內容，尤其第一句“Ifyou’veeverworriedthatwe’vesolvedallthemysteriesofnature，fearnot.”和最后一句“Whileonesiderunsdown…disappearsapparentlyforever.”可推知，第一段用明達蘇尼州的魔鬼水壺瀑布的例子來說明自然界還有未解之謎。故選B項。9.Whatdoestheunderlinedword“baffling”mean？A.Astonishing. B.Interesting.C.Puzzling. D.Challenging.√9.詞義猜測題。根據第一段中的“Whileonesiderunsdown…disappearsapparentlyforever.”可知，魔鬼水壺瀑布的一側正常流淌，另一側卻在洞穴里消失。由此推知，畫線詞意為“令人困惑的”，與puzzling意義一致。故選C項。10.Whatcanweinferfromthe2017theory？A.Ithasn’tbeenprovedyet.B.Itisconsideredridiculous.C.It