2017-2018学年高中英语人教版选修6Unit5课时跟踪练（一）

课时跟踪练(一)WarmingUp&Reading—PrereadingⅠ.阅读理解ACanwepredictearthquakes?Canwecontrolearthquakes?Toanswerthefirstquestion,scientistsarelookingverycloselyatthemostactivefault(断层)systemsinthecountry,suchastheSanAndreasfaultinCalifornia.Afaultisabreakbetweentwosectionsoftheearth'ssurface.Thesebreaksbetweensectionsaretheplaceswhereearthquakesoccur.Scientistslookatthefaultsforchangeswhichmightshowthatanearthquakewasabouttooccur.Butitwillprobablybemanyyearsbeforewecanpredictearthquakescorrectly.Andthecontrolofearthquakesisevenfartheraway.However,therehavebeensomeinterestingdevelopmentsinthefieldofcontrollingearthquakes.ThemostinterestingdevelopmentconcernstheRockyMountainArsenalearthquakes.Herewaterwasputintoalayerofrocks4,000metresbelowthesurfaceoftheground.Shortlyafterthisinjection(注射)ofwater,therewasasmallnumberofearthquakes.Scientistshavedecidedthatthewaterwhichwasinjectedintotherocksworkedlikeoiloneachother.Whenthewater“oiled”thefault,thefaultbecameslipperyandtheenergyofanearthquakewasgivenout.Scientistsarestillexperimentingatthesiteoftheseearthquakes.Theyhaverealizedthatthereisaconnectionbetweentheinjectionofthewaterandtheearthquakeactivity.Theyhavesuggestedthatitmightbepossibletousethisknowledgetopreventverybig,dangerousearthquakes,thatis,scientistscouldinjectsomekindoffluidlikewaterintofaultsandchangeonebigearthquakeintoanumberofsmall,harmlessearthquakes.eq\x(语篇解读：为了提高人们对地震的防范意识，美国政府加大了在防震、预测方面的投入，他们甚至在努力采取措施控制地震的发生。)1．Earthquakesbeltsare________.A．mapsthatshowwhereearthquakesarelikelytooccurB．zoneswithahighprobabilityofearthquakesC．breaksbetweentwosectionsoftheearth'ssurfaceD．thetwolayersofearthalongafault解析：选B细节理解题。根据第一段的第三句可知，地震多发地带被称为earthquakebelts。2．TheSanAndreasfaultis________.A．anactivefaultsystemB．aplacewhereearthquakeshavebeenpredictedcorrectlyC．aplacewhereearthquakeshavebeencontrolledD．atthefootoftheRockyMountain解析：选A细节理解题。根据第二段可知，该地区为地震比较活跃的地区。3．WhatcanbesaidabouttheexperimentsattheRockyMountainArsenal?A．Theyhavenopracticalvalueinearthquakeprevention.B．Theymayhavepracticalvalueinearthquakeprevention.C．Theyarecertaintohavepracticalvalueinearthquakeprevention.D．Nothingistoldabouttheirpracticalvalueinearthquakeprevention.解析：选B推理判断题。根据科学家的试验，通过向断裂带注水可以引发小地震，从而使地震的能量得到释放，因此也就降低了大地震爆发的可能。BThereareover500knownactivevolcanoesintheworldandthousandsofextinctvolcanoes.VolcanoesarefoundoneverycontinentexceptAustralia.Thereareabout80activevolcanoesundertheoceans.Volcanoesarebothterrifyingandfascinating.Inordertounderstandwhyvolcaniceruptionshappen,itisnecessarytoknowsomethingsabouthowtheEarthismade.ThepartoftheEarthweliveonisan18­mile­thicklayerofsolidrockcalledthecrust.Beneaththecrustisalayercalledthemantle(地幔),itishotenoughtomeltsomeoftherock,creatingmagma(岩浆).WhenthemagmafindscracksintheEarth'scrust,itrisesup.Gasbubbles(气泡)insidethemagmagrowbiggerandtrytoescapeasthemoltenrockgetsclosertotheEarth'ssurface.Whenthegasbubblescan'tbeheldbackanylonger,thevolcanoerupts.Imagineshakingasodabottleuntilthegasinsideblowsthecapoff,andyoucanunderstandsomethingofhowavolcanoerupts.Ifthemagmaisrunny,andthegascanescapeeasily,theeruptionisgentle.Butifthemagmaisthick,thegashastobuildupmorepressuretoescape.Thentheeruptionisexplosive.Whenavolcanoerupts,themoltenrockthatflowsfromitiscalledlava.Thelavamayrunforsomedistance,oritmaypileupnearthevolcano,makingthemountainlarger.Duringanexplosiveeruption,piecesofrockarethrownfromthevolcano.Scientistscallthesepyroclasts(火山碎屑).Thesmallestpyroclastsarecalledash.Ashisoftenthrownintotheatmospherebytheforceoftheeruption.Largerrocks,aboutwalnut(胡桃)size,arecalledlapilli,Italianfor“littlestones”.Thelargestpyroclastsarecalledblocksiftheyaresolid,orbombsiftheyaremolten.Volcanoeshavebeenamajorforceintheformationofourplanetforthousandsandthousandsofyears.Todaygeologistscontinuallyobserveactivevolcanoesforsignsoferuption.Usingmoderninstruments,theyareusuallyabletoissueawarningbeforethevolcanoerupts.eq\x(语篇解读：本文向我们介绍了火山的一些基本知识。)4．Theauthorexplainshowthevolcanoeruptsby________.A．makingaparisonB．tellingastoryC．usingfigures D．askingquestions解析：选A写作手法题。根据第三段“Imagineshakingasodabottleuntilthegasinsideblowsthecapoff,andyoucanunderstandsomethingofhowavolcanoerupts.”可知，作者在说明火山怎样喷发时打了一个比方。5．Whethertheeruptionisexplosivedependson________.A．thetemperatureofthecrustB．whetherthemagmaisthickC．whetherthemagmaisnearthemantleD．thenumberofgasbubblesinsidethemagma解析：选B细节理解题。根据第三段末三句“...themagmaisrunny...Thentheeruptionisexplosive.”可知，火山喷发是否是爆发性的，取决于岩浆是否黏稠。其中的runny的意思是“松软的，有流动倾向的”。6．WelearnfromParagraph5that________.A．ashissmallerthanpyroclastsB．bombsareaboutwalnutsizeC．blocksarelargerthanlapilliD．lapilliexistintheatmosphere解析：选C细节理解题。根据第五段“...largestpyroclastsarecalledblocks...”可知，block是最大的火山碎屑，故选C项。7．Thepassageismostprobablytakenfrom________.A．NationalGeographic B．EntertainmentWeeklyC．Health D．TVGuide解析：选A文章出处题。该文介绍了火山的一些常识，最有可能从关于地理方面的杂志中摘选，故A项为正确答案。CSeeingavolcanoeruptisawonderfulexperience,andyoucanreallyfeeltheheatbyclimbingtothesummit(山顶)ofPacayaforaclose­upview.ThereareguidedtourseverydayupthishighlyactivevolcanofromAntigua,givingtravelersachancetoseeMotherNatureathermostpowerful.ButclimbingPacayaisnoeasyjob:itis2,560metreshigh,andreachingthesummittakestwotothreehoursofseeminglyone­step­forwardandtwo­step­backmovements.Asyouclimb,youhearthedullsoundsoferuptionshighabove.Steaming,hotremainsfromrecenteruptionsbegintolinethepathasyouneartheactivesummit：theMcKenneyCone(火山锥).Justasthoughyouaregoingtowalkovertotheedgeofthecone,theroadturnstotheleftanduptotherelativesafetyoftheold,inactivesummit.Manytoursaretimedsothatyouarriveattheconeofthevolcanoinplentyoftimeforsunsetandthefullcontrastbetweentheeruptingredlavaandthedarkeningsky.Onagooddaytheviewfromthesummitisextremelyexciting.Theactivemouthboils,sendingredlavaoveritssides,andonceinawhileshootshotstreamsupto100metresintotheair.Thereisastrongbadsmellintheairevenifyoutakecaretobeupwindofthecone.Aseveningturnsdeeperintothenight,theburninglavaquietlyfallsdownthesideofthevolcano.Foryou,too,itistimetogetdown.语篇解读：红色的熔岩从火山口喷薄而出冲向百米高空，与黑色的天幕相映生辉，来自大自然的力量令游客叹为观止，流连忘返。8．Whatisthemainpurposeofthepassage?A．ToattracttouriststoPacaya.B．TodescribethebeautyofPacaya.C．TointroduceguidedtourstoPacaya.D．ToexplainthepowerofnatureatPacaya.解析：选A写作意图题。B项描述Pacaya之美；C项介绍去Pacaya的旅行；D项解释Pacaya大自然的力量。这三项本文都是点到为止，其最终目的是想吸引游客去Pacaya。9．Antiguaisanisland________.A．wherepeoplecanenjoyculturalfestivalB．wherethedaringPacayatourstartsC．thatgivesaclose­upviewofPacayaD．thatisfamousforitstourpanies解析：选B细节理解题。由第二段最后一句“NomatterwhenyouetoAntigua,youwon'tmissthePacaya­tourpanies.”可知，这里是冒险之游的起点。10．Manytoursaretimedforpeopleto________.A．getdownthemountainintimewhennightfallsB．avoidthesmellfromtheupwinddirectionoftheconeC．enjoythefantasticeruptionagainstthedarkeningskyD．appreciatethesceneryofthe2,560­metre­highmountain解析：选C细节理解题。由最后一段第一句可知，要准时到达火山锥才能欣赏到日落及岩浆喷发到黑色天空中的壮观景色。Ⅱ.阅读七选五Nowadayswearetoobusytomakeartormakecreativeworks.Herearesomesimpletipstohelpyousolvetheproblem.1．ReadbeforeyoufallasleepThisisaclassicsubconscious(潜意识的)­employingtrick,usedalotwhenyoureallyneedtostudyandremembermaterials.__1__StudiesshowthatyourbrainremembersmoreandthinkssubconsciouslyabouttheinformationyouwanttoprocessjustbeforegoingintoREM(RapidEyeMovement)sleep.__2__2．TakenoteswheneverideaseTakenotesnomatterwhattimeofday(ornight).Keepanotepadandpenbesideyourbed,andalwayscarryoneinyourhandbagorpocket.__3__Sometimesthey'renotimportantorplayful,butsometimestheycanbetinyseedsofgold.3．MakeconversationsaboutyourartworkapriorityThinkabouthowmuchtimeyouspendtalkingoutloudaboutyourartwork.__4__There'salearningcurve(曲线)thatesoutofforcingyourselftomunicate.Setupalistofartiststocontactregardingyourwork.4．Don'tneglectthinkingtime__5__Manyartworksaremadeaftertheyhavebeeninsideyourownheadformonthsorevenyears.Whetheryou'reatwork,walkingpets,ordoingthedishes,us