Unit-5-The-power-of-natu教学讲解课件

Unit5ThepowerofnatureThepower

ofnatureUnit5Unit5Thepowerofna1NaturaldisastersNaturaldisasters2floodflood3DroughtDrought4typhoontyphoon5TornadoTornado6hurricanehurricane7tsunami(海啸)tsunami(海啸)8热带风暴在西太平洋叫台风,是因为我国台湾的原因;龙卷风是因为高空大气对流导致对地面或水面的气流强烈的吸引旋转.

热带风暴在西大西洋和印度洋叫飓风,它俩都是热带风暴.而海啸是因为海底地震或热带飓风等引起的海水涌动.热带风暴在西太平洋叫台风,是因为我国台湾的原因;9SandstormSandstorm10earthquakeearthquake11snow

slide(雪崩)snowslide(雪崩)12forestfireforestfire13mudflow(泥流)mudflow(泥流)14volcaniceruptionvolcaniceruption15Whilefacingthosenaturaldisasters,wefeel…how________natureisandhow______humansarecomparedwithnatural____________.facedwithpowerfulweakdisastersWhilefacingthosenaturaldis16Haveyoueverseenavolcano?Haveyoueverseenavolcano?17Unit-5-The-power-of-natu教学讲解课件18TheKilaueavolcanoinHawaiiisperhapsthemostactivevolcanointheworld;itisrecordedthatthere’saneruptionalmosteveryfouryears.TheKilaueavolcanoinHawaii192004年6月2日，夏威夷的基拉韦厄活火山(Kilaueacaldera)喷出熔岩。2004年6月2日，夏威夷的基拉韦厄活火山(Kilauea202008年3月18日，夏威夷基劳维亚(Kilauea)火山喷发，火山灰从出口向外喷散。火山喷发产生的岩屑散布于方圆30公顷，一处深受游客喜爱的观景台也受到岩屑的影响。这是海拔1277米的基劳维亚火山主火山口自从1924年以来的首次喷发。2008年3月18日，夏威夷基劳维亚(Kilauea212008年6月17日智利南部柴滕火山爆发。火山喷发出浓重的烟尘，并伴有隆隆的地动声，同时出现了两个新火山口。这座火山从5月2日开始喷发，已迫使4500名居民从柴滕火山附近的一座小村庄撤出。从布兰科(Blanco)河中溢出的水已经对这个村子造成严重破坏，由于有大量火山灰落入河中，河水变得非常粘稠。2008年6月17日智利南部柴滕火山爆发。火山喷发出浓222008年6月6日，位于印度尼西亚米纳哈萨半岛上的索普坦火山喷出滚滚浓烟。索普坦火山当天开始喷发浓烟和火山灰，高度达2到4公里。

2008年6月6日，位于印度尼西亚米纳哈萨半岛上的索普坦火山232006年1月11日，美国阿拉斯加地区霍内市西南75英里处的奥古斯丁火山两次短暂喷发，喷出的灰烬弥漫到高达5英里(8公里)的空中，向库克水道方向飘去。图为1月12日的奥古斯丁火山。

2006年1月11日，美国阿拉斯加地区霍内市西南75英24素有“欧洲最高的活火山”之称的意大利西西里岛埃特纳火山(MountEtna)，海拔3340米。2002年10月30日，国际空间站上的工作人员观察到埃特纳火山的爆发过程。山的下坡和山顶北边颜色较淡的烟柱，是由熔岩流入山坡上的松树林引起的森林大火造成的。素有“欧洲最高的活火山”之称的意大利西西里岛埃特纳火山25维苏威火山(Vesuvius)，意大利乃至全世界最著名的火山之一，海拔高度1281米。维苏威火山在历史上多次喷发，最为著名的一次是公元79年的大规模喷发，灼热的火山碎屑流毁灭了当时极为繁华的拥有2万人口的庞贝古城。

维苏威火山(Vesuvius)，意大利乃至全世界最著名的火26Unit-5-The-power-of-natu教学讲解课件27volcano-eruptionBoilingrockeruptsfromthecrater;thelavaflowsslowlydownthemountain.

Magmachamber岩浆储源

LavaCratervolcanicashvolcano-eruptionBoilingrocke28Moreaboutthevolcano1.Howisavolcanoformed?Therocksundertheearthbecomehotterandhotteranderuptfromthemountain.Moreaboutthevolcano1.How29Neartheoceans.Whereisitmostpossibleforavolcanotoerupt?Neartheoceans.Whereisitm30Anactivevolcano3.Whattypesofvolcanoesdoyouknow?AdormantvolcanoAnextinctvolcanoAnactivevolcano3.Whattypes31ParagraphsParagraphsParagraphDescriptionofhisjobasavolcanologistDescriptionofhisfirstsightofaneruptionHisloveforhisjobandvolcanoes1-23-45Reading1ParagraphsParagraphsParagraphD321.

Whatisthewriter’sjob?2.When

didhefirstseeaneruption?Whatdiditlooklike?3.Whatwashewearingwhengettingclosetothecrater?Andwhatwastheresult?Reading21.Whatisthewriter’sjob?Re33Whatisthewriter’sjob?HeisavolcanologistworkingfortheHawaiianVolcanoObservatory.HemainlycollectsinformationaboutMountKilauea.Whatisthewriter’sjob?Heis34volcanologistvolcanologist352.Whendidhefirstseeaneruption?Whatdiditlooklike?ItwasinthesecondweekafterhearrivedinHawaii.Itwasverybrightalthoughitwasnight.Redlavafountainedhundredsofmetersintotheairanditwasafantasticsight.2.Whendidhefirstseeaner363.Whatwashewearingwhengettingclosetothecrater?Andwhatwastheresult?Hewaswearingwhiteprotectivesuitsthatcoveredhiswholebody,helmets,bigbootsandspecialgloves,justlikeaspaceman.Asaresult,itmadehimdifficulttowalk.3.Whatwashewearingwhenge37Themostimportantjobforthewriteristhathe_______.A.usesscientificequipmentB.protectspeoplefromtheearthquakeC.collectsinformationforadatabaseD.protectspeoplefromthevolcano2.Thewriter’sattitudetowardshisjobis____.A.boredB.indifferent无关紧要的

C.enthusiasticD.disappointing

Reading3Themostimportantjobforthe381.Whyisavolcanologist'sjobimportant?2.WhereisMountKilauea?Reading43.WhyisthelavathatflowsonMountKilaueamoredangerousthantheactualeruption?4.Whatcausedthewriter'sbedroomtobecomeasbrightasdayeventhoughitwasnight?5.Whydidthescientistshavetogetclosetothevolcanoafteritbeganerupting?6.Whywasitdifficultforthewritertowalktowardstheedgeofthecrater?7.Whatdoesthewriterfindimpressiveaboutvolcanoesevenafterstudyingthemfor20years?1.Whyisavolcanologist'sjo39Whyisthewriter’sjobimportant?Danger_______meandmakesmefeel_______Ihavethe________jobintheworld_________peoplefromthevolcanogreatestexcitesaliveprotectWhyistheDanger_______mean402.WhereisMountKilauea?MountKilaueaisinHawaii.2.WhereisMountKilauea?Moun413.WhyisthelavathatflowsonMountKilaueamoredangerousthantheactualeruption?

Thelavaflowsdownthemountainandcancoveruporburnvillagesinitspath.Therocksthateruptfromthevolcanousuallydon’tdamageanythingbecausenoonelivesnearthecrater.3.Whyisthelavathatflows424.Whatcausedthewriter'sbedroomtobecomeasbrightasdayeventhoughitwasnight?Thelightwascausedbythered-hotrocksandgasthateruptedfromthevolcano.4.Whatcausedthewriter'sbe435.Whydidthescientistshavetogetclosetothevolcanoafteritbeganerupting?Thescientistsneededtogetsamplesofthelavasotheycouldstudythem.6.Whywasitdifficultforthewritertowalktowardstheedgeofthecrater?Theauthorwaswearingspecialprotectiveclothingthatmadeitdifficulttowalk.5.Whydidthescientistshave447.Whatdoesthewriterfindimpressiveaboutvolcanoesevenafterstudyingthemfor20years?Thewriterfindstheirbeautyandtheirpotentialtocausegreatdamageveryimpressive.7.Whatdoesthewriterfindi451.Whatmadetheauthorrealizethataneruptionoccurred?Reading52.Whatdidthescientistsdoaftertheeruption?1.Whatmadetheauthorrealiz461.Whatmadetheauthorrealizethataneruptionoccurred?mybedbeganshakingastrangesoundmybedroombecameasbrightasday.anabsolutelyfantasticsightredhotlavawasfountaininghundredsofmetersintotheair1.Whatmadethemybedbegans472.Whatdidthescientistsdoaftertheeruptionputonwhiteprotectivesuitshelmets,bigbootsdroppedascloseaspossibletothecraterslowlymadeourwaytotheedgeofthecraterlookeddownintothered,boilingcenterclimbeddownintothecratertocollectsomelava2.Whatdidtheputonwhitedr48Whatdoyouthinkofvolcanologists’job?dangerousinterestingchallengingtiringboringimportantmeaningfulWhatdoyouthinkofvolcanol49enthusiastic,brave,smart,careful,calm,helpful,strong,determined,out-going,optimistic,unselfish,patient,healthy…Whatkindofpersoncanbeavolcanologist?Avolcanologistwhois…can…Avolcanologistshould….because….enthusiastic,brave,smart,c50Weshouldlearntogetalong

well

with

nature!Weshouldlearnto51Whatcanwedo?↖↗↙lawsplanthandkerchief↘one-offWhat↖↗↙lawsplanthandkerchief↘52Whatcanwedo?rubbishbox××basketcleanWhatcanwedo?rubbishbox××b53Whatcanwedo?↖↘↙↗solarenergyWhatcanwedo?↖↘↙↗solarene54

Unit5ThepowerofnatureThepower

ofnatureUnit5Unit5Thepowerofna55NaturaldisastersNaturaldisasters56floodflood57DroughtDrought58typhoontyphoon59TornadoTornado60hurricanehurricane61tsunami(海啸)tsunami(海啸)62热带风暴在西太平洋叫台风,是因为我国台湾的原因;龙卷风是因为高空大气对流导致对地面或水面的气流强烈的吸引旋转.

热带风暴在西大西洋和印度洋叫飓风,它俩都是热带风暴.而海啸是因为海底地震或热带飓风等引起的海水涌动.热带风暴在西太平洋叫台风,是因为我国台湾的原因;63SandstormSandstorm64earthquakeearthquake65snow

slide(雪崩)snowslide(雪崩)66forestfireforestfire67mudflow(泥流)mudflow(泥流)68volcaniceruptionvolcaniceruption69Whilefacingthosenaturaldisasters,wefeel…how________natureisandhow______humansarecomparedwithnatural____________.facedwithpowerfulweakdisastersWhilefacingthosenaturaldis70Haveyoueverseenavolcano?Haveyoueverseenavolcano?71Unit-5-The-power-of-natu教学讲解课件72TheKilaueavolcanoinHawaiiisperhapsthemostactivevolcanointheworld;itisrecordedthatthere’saneruptionalmosteveryfouryears.TheKilaueavolcanoinHawaii732004年6月2日，夏威夷的基拉韦厄活火山(Kilaueacaldera)喷出熔岩。2004年6月2日，夏威夷的基拉韦厄活火山(Kilauea742008年3月18日，夏威夷基劳维亚(Kilauea)火山喷发，火山灰从出口向外喷散。火山喷发产生的岩屑散布于方圆30公顷，一处深受游客喜爱的观景台也受到岩屑的影响。这是海拔1277米的基劳维亚火山主火山口自从1924年以来的首次喷发。2008年3月18日，夏威夷基劳维亚(Kilauea752008年6月17日智利南部柴滕火山爆发。火山喷发出浓重的烟尘，并伴有隆隆的地动声，同时出现了两个新火山口。这座火山从5月2日开始喷发，已迫使4500名居民从柴滕火山附近的一座小村庄撤出。从布兰科(Blanco)河中溢出的水已经对这个村子造成严重破坏，由于有大量火山灰落入河中，河水变得非常粘稠。2008年6月17日智利南部柴滕火山爆发。火山喷发出浓762008年6月6日，位于印度尼西亚米纳哈萨半岛上的索普坦火山喷出滚滚浓烟。索普坦火山当天开始喷发浓烟和火山灰，高度达2到4公里。

2008年6月6日，位于印度尼西亚米纳哈萨半岛上的索普坦火山772006年1月11日，美国阿拉斯加地区霍内市西南75英里处的奥古斯丁火山两次短暂喷发，喷出的灰烬弥漫到高达5英里(8公里)的空中，向库克水道方向飘去。图为1月12日的奥古斯丁火山。

2006年1月11日，美国阿拉斯加地区霍内市西南75英78素有“欧洲最高的活火山”之称的意大利西西里岛埃特纳火山(MountEtna)，海拔3340米。2002年10月30日，国际空间站上的工作人员观察到埃特纳火山的爆发过程。山的下坡和山顶北边颜色较淡的烟柱，是由熔岩流入山坡上的松树林引起的森林大火造成的。素有“欧洲最高的活火山”之称的意大利西西里岛埃特纳火山79维苏威火山(Vesuvius)，意大利乃至全世界最著名的火山之一，海拔高度1281米。维苏威火山在历史上多次喷发，最为著名的一次是公元79年的大规模喷发，灼热的火山碎屑流毁灭了当时极为繁华的拥有2万人口的庞贝古城。

维苏威火山(Vesuvius)，意大利乃至全世界最著名的火80Unit-5-The-power-of-natu教学讲解课件81volcano-eruptionBoilingrockeruptsfromthecrater;thelavaflowsslowlydownthemountain.

Magmachamber岩浆储源

LavaCratervolcanicashvolcano-eruptionBoilingrocke82Moreaboutthevolcano1.Howisavolcanoformed?Therocksundertheearthbecomehotterandhotteranderuptfromthemountain.Moreaboutthevolcano1.How83Neartheoceans.Whereisitmostpossibleforavolcanotoerupt?Neartheoceans.Whereisitm84Anactivevolcano3.Whattypesofvolcanoesdoyouknow?AdormantvolcanoAnextinctvolcanoAnactivevolcano3.Whattypes85ParagraphsParagraphsParagraphDescriptionofhisjobasavolcanologistDescriptionofhisfirstsightofaneruptionHisloveforhisjobandvolcanoes1-23-45Reading1ParagraphsParagraphsParagraphD861.

Whatisthewriter’sjob?2.When

didhefirstseeaneruption?Whatdiditlooklike?3.Whatwashewearingwhengettingclosetothecrater?Andwhatwastheresult?Reading21.Whatisthewriter’sjob?Re87Whatisthewriter’sjob?HeisavolcanologistworkingfortheHawaiianVolcanoObservatory.HemainlycollectsinformationaboutMountKilauea.Whatisthewriter’sjob?Heis88volcanologistvolcanologist892.Whendidhefirstseeaneruption?Whatdiditlooklike?ItwasinthesecondweekafterhearrivedinHawaii.Itwasverybrightalthoughitwasnight.Redlavafountainedhundredsofmetersintotheairanditwasafantasticsight.2.Whendidhefirstseeaner903.Whatwashewearingwhengettingclosetothecrater?Andwhatwastheresult?Hewaswearingwhiteprotectivesuitsthatcoveredhiswholebody,helmets,bigbootsandspecialgloves,justlikeaspaceman.Asaresult,itmadehimdifficulttowalk.3.Whatwashewearingwhenge91Themostimportantjobforthewriteristhathe_______.A.usesscientificequipmentB.protectspeoplefromtheearthquakeC.collectsinformationforadatabaseD.protectspeoplefromthevolcano2.Thewriter’sattitudetowardshisjobis____.A.boredB.indifferent无关紧要的

C.enthusiasticD.disappointing

Reading3Themostimportantjobforthe921.Whyisavolcanologist'sjobimportant?2.WhereisMountKilauea?Reading43.WhyisthelavathatflowsonMountKilaueamoredangerousthantheactualeruption?4.Whatcausedthewriter'sbedroomtobecomeasbrightasdayeventhoughitwasnight?5.Whydidthescientistshavetogetclosetothevolcanoafteritbeganerupting?6.Whywasitdifficultforthewritertowalktowardstheedgeofthecrater?7.Whatdoesthewriterfindimpressiveaboutvolcanoesevenafterstudyingthemfor20years?1.Whyisavolcanologist'sjo93Whyisthewriter’sjobimportant?Danger_______meandmakesmefeel_______Ihavethe________jobintheworld_________peoplefromthevolcanogreatestexcitesaliveprotectWhyistheDanger_______mean942.WhereisMountKilauea?MountKilaueaisinHawaii.2.WhereisMountKilauea?Moun953.WhyisthelavathatflowsonMountKilaueamoredangerousthantheactualeruption?

Thelavaflowsdownthemountainandcancoveruporburnvillagesinitspath.Therocksthateruptfromthevolcanousuallydon’tdamageanythingbecausenoonelivesnearthecrater.3.Whyisthelavathatflows964.Whatcausedthewriter'sbedroomtobecomeasbrightasdayeventhoughitwasnight?Thelightwascausedbythered-hotrocksandgasthateruptedfromthevolcano.4.Whatcausedthewriter'sbe975.Whydidthescientistshavetogetclosetothevolcanoafteritbeganerupting?Thescientistsneededtogetsamplesofthelavasotheycouldstudythem.6.Whywasitdifficultforthewritertowalktowardstheedgeofthecrater?Theauthorwaswearingspecialprotectiveclothingthatmadeitdifficulttowalk.5.Whydidthescientistshave987.Whatdoesthewriterfindimpressiveaboutvolcanoesevenafterstudyingthemfor20years?Thewriterfindstheirbeautyandtheirpotentialtocauseg