系列Thepowerofnature 微课-完整版课件

Unit5ThepowerofnatureSectionⅠWarmingUp&Reading一、课文大意填空

Thewritertoldustheimportanceofthejobasavolcanologist.Twentyyearsagohewas(1)___________asavolcanologist,collectinginformationfora(2)__________aboutMountKilauea.Hedescribedtheprocessofthe(3)___________tous.Hesaidthemostimportantthingaboutthejobofavolcanologistwastoprotectpeoplefrom(4)__________．appointeddatabaseeruptionvolcanoes二、根据课文内容，选择最佳答案1．Themainpurposeofthewriter'sjobis________.A．tocollecttheinformationaboutMountKilaueaB．tocollectandevaluatetheinformationaboutMountKilaueaC．tohelpotherscientiststopredictthetrendofthelavaD．tomeetlocalpeopleandtouristsC2．Whenwasthewriterappointedasavolcanologist?______A．Tenyearsago.B．Formorethantenyears.C．Lessthantwentyyears.D．Twentyyearsago.3．Whydoesthelavathatflowsslowlydownthemountiancausefarmoredamagethantheboilingrockthateruptsfromthevolcano?____A．Becauseitburieseverythinginitspath.B．BecausemostpeoplelivenearthetopofMountKilauea.C．Becauselavaisinahighertemperature.D．Becausepeoplecan'tleavethehouse.DA4．Wheredidthewriterhavehisfirstsightoftheeruption?___A．Thebedroom.B．ThetopoftheMountKilauea.C．Thebackgarden.D．Theoffice.5．Whywerethewriterandtwootherscientistsdrivenupthemountainthedayaftertheeruption?___A．Tosavethepeopleonthemountain.B．Toprotecttheplantsandanimalsonthemountain.C．Towatchthefantasticsight.D．Tocollectsomelavaforlaterstudy.CDTheimportanceofa volcanologist'sjob1.Helpotherscientiststopredictwherelavafromthevolcanowillflownextandhow(1)________．2．Savemanylivesbecausepeopleinthe(2)________ofthelavacanbewarnedtoleavetheirhomes.Thefirstsightofaneruption1.Suddenlymybedbeganshakingandmybedroombecameas(3)________asday.2.Therewasan(4)________fromthesideofthemountainandredhotlavawas(5)________hundredsofmetersintothe(6)________．Hisloveforhisjobandvolcanoes1.Today,IamjustasenthusiasticaboutmyjobasthedayIfirststarted.2．Iamstill(7)________atvolcanoes'beautyaswellastheir(8)________tocausegreatdamage.三、阅读课文，然后完成下列表格fastpathbrighteruptionfountainingairamazedpotentialItshowsavolcanoerupting.它展示了一座火山的爆发。1．eruptvi.(指火山)爆发；突然发生典例It'smanyyearssinceMountVesuviuslasterupted.维苏威火山上一次爆发至今已有很多年了。Violencehaseruptedonthestreet.大街上突然发生了暴乱。拓展eruptinto(＝burstinto)爆发成；发出运用完成句子①Anactivevolcano________________(可能喷发)atanytimeinthisarea.②Aregionalconflictwould________________(演变成)violentwarfare.coulderupteruptinto

Haveyoueverconsideredhowweakhumansarecomparedwithavolcano,hurricaneorearthquake？你是否想过与火山、飓风或地震相比，人类是何等脆弱？2．comparedwith/to和……比起来典例Hishomeisapalacecomparedwith/toourpoorlittlehouse. 他家和我们贫穷的小房子相比简直就是宫殿。

辨析comparedwith/compare...to.../compare...with...

(1)comparedwith/to意为“与……比起来”，在句中作状语。如： Comparedwith/toClassOne'sclassroom,ClassTwo'sisspacious. 跟一班教室比起来，二班教室比较宽敞。(2)compare...to...意为“把……比喻成……”，侧重指两者间的相似点。如：Wecompareteacherstogardenersandstudentstoflowers.我们把老师比作园丁，把学生比作花朵。(3)compare...with...意为“把……与……作比较”，侧重指两者之间的区别。如：Nevercompareyouradvantageswithother'sshortcomings.切勿拿自己的优点跟别人的缺点相比。运用用上面所提供的辨析短语的适当形式填空①He________________thegirl________________themooninthepoem.②________________him,youarelucky.③________________this________________thatone,paredtoComparedto/withComparewithItraveltounusualplacesandworkalongsidepeoplefromallovertheworld.我跑的是不同寻常的地方，和我一起工作的人来自世界各地。3．alongside解析(1)prep.在……旁边；沿着……的边Theboatpulledupalongsidethedock.那条船在码头旁停靠。(2)adv.在旁边；沿着边Thepolicecarpulledupalongside.那辆警车在旁边停下。运用完成句子①Themanstopped________________(在河边)．②Heisthemasterofthecarstopped______________(在旁边)．alongsidetheriveralongsideIwasappointedasavolcanologistworkingfortheHawaiianVolcanoObservatory(HVO)twentyyearsago.二十年前我被任命为在夏威夷火山观测站工作的火山学家。4．appointvt.任命；委派典例Hewasappointedmayorofthecity.他被任命为市长。拓展appointsb.as...任命某人为……appointsb.todo指派某人做运用完成句子They________________(任命他为)theirnewmanager.appointedhimas

Havingcollectedandevaluatedtheinformation,Ihelpotherscientiststopredictwherelavafromthevolcanowillflownextandhowfast.收集和评估这些信息之后，我就帮助其他科学家一起预测熔岩接着将往何处流，流速是多少。5．evaluatevt.评估；评价；估计 典例Let'sevaluatetheevidence. 让我们评估一下此证据的价值。Theschoolhasonlybeenopenforsixmonths,soit'stooearlytoevaluateitssuccess.这所学校开办才不过六个月，所以要对它的成绩作出评价为时尚早。拓展evaluateone'sability评估某人的能力evaluatethevalue/qualityofsth.评估某物的价值/质量运用完成句子①Beforeyouappointherasyourassistant,you'dbetter________________(评估一下她的能力)．②It'stoolateto________________(评定结果)oftheexperiment.evaluateherabilityevaluatetheresult6．现在分词的完成时作状语

解析本句中的havingcollectedandevaluatedtheinformation是现在分词的完成时作时间状语，表明所表示的动作发生在主句动作之前，相当于AsIhadcollectedandevaluated...。如： Havingfinishedthehomework,hewenttoplaybasketball.做完功课后，他去打篮球。运用完成句子________________(等候了)foranhour,shemethersoninthatprisonfinally.Havingwaited

Unfortunately,wecannotmovetheirhomesoutoftheway,andmanyhouseshavebeencoveredwithlavaorburnedtotheground.遗憾的是，我们不可能把他们的家搬离岩浆流经之路，因此许多房屋被熔岩淹没，或者焚烧殆尽。7．outofthe/one'sway不挡道；不碍事；躲开 典例Pleasekeep/stayoutoftheway.请让开。IfUncleTomhadbeendrinking,Ikeptoutofhisway.如果汤姆大叔一直在喝酒，我就躲开他。拓展intheway挡道；碍事onone's/theway在路上bytheway顺便问/提一下bywayof经过，途经inaway在某种程度上innoway绝不运用完成句子①Thesoldiernoddedslightly,andmoved________________(让开)toletthemthrough.②Don'tstophere.It's________________(挡道)．outofthewayintheway8．burntotheground全部焚毁典例TheSunlightHotelhadbeenburnttotheground.阳光旅馆被烧毁了。拓展burnup烧起来；烧得更旺；烧尽，烧毁burnaway逐渐烧完；烧光burnout烧光；烧毁burndown烧光；火力减弱burnoneselfout耗尽精力；精疲力竭

运用完成句子 ①Thetallbuilding____________________(全部烧毁)asaresultofthebigfire.②Heputmorewoodonthefiretomakeit________________(烧得更旺)．wasburnttothegroundburnup

Thelavathatflowsslowlylikeawavedownthemountaincausesfarmoredamagebecauseitburieseverythinginitspathunderthemoltenrock.而顺着山坡向下流的火山熔岩所造成的损失却大得多，这是因为火山熔岩流经的地方，一切东西都被掩埋在熔岩下面了。9．wave解析(1)n.波浪；波涛Thewaveswerebeatingontheshore.波涛拍岸。(2)vi.波动；飘动；起伏；挥手Theflagwavedinthebreeze.旗帜在微风中飘扬。拓展waveaside对……置之不理；不理会wavegoodbyetosb.向某人挥手告别waveoff挥手告别wavedown挥手示意停下；挥手叫停运用完成句子①Standingattheedgeofthecliffshecansee________________(波浪)crashingbelow.②MymotherwascryingasI________________(向……挥手告别)her.thewaveswavedgoodbyeto

Itwasnoteasytowalkinthesesuits,butweslowlymadeourwaytotheedgeofthecraterandlookeddownintothered,boilingcentre.穿着这些衣服走起路来实在不容易，但我们还是缓缓往火山口的边缘走去，并且向下看到了红红的沸腾的中央。10．makeone'sw