Unit-5-The-power-of-natu教學(xué)講解課件

Unit5ThepowerofnatureThepower

ofnatureUnit5Unit5Thepowerofna1NaturaldisastersNaturaldisasters2floodflood3DroughtDrought4typhoontyphoon5TornadoTornado6hurricanehurricane7tsunami(海嘯)tsunami(海嘯)8熱帶風(fēng)暴在西太平洋叫臺(tái)風(fēng),是因?yàn)槲覈?guó)臺(tái)灣的原因;龍卷風(fēng)是因?yàn)楦呖沾髿鈱?duì)流導(dǎo)致對(duì)地面或水面的氣流強(qiáng)烈的吸引旋轉(zhuǎn).

熱帶風(fēng)暴在西大西洋和印度洋叫颶風(fēng),它倆都是熱帶風(fēng)暴.而海嘯是因?yàn)楹５椎卣鸹驘釒эZ風(fēng)等引起的海水涌動(dòng).熱帶風(fēng)暴在西太平洋叫臺(tái)風(fēng),是因?yàn)槲覈?guó)臺(tái)灣的原因;9SandstormSandstorm10earthquakeearthquake11snow

slide(雪崩)snowslide(雪崩)12forestfireforestfire13mudflow(泥流)mudflow(泥流)14volcaniceruptionvolcaniceruption15Whilefacingthosenaturaldisasters,wefeel…h(huán)ow________natureisandhow______humansarecomparedwithnatural____________.facedwithpowerfulweakdisastersWhilefacingthosenaturaldis16Haveyoueverseenavolcano?Haveyoueverseenavolcano?17Unit-5-The-power-of-natu教學(xué)講解課件18TheKilaueavolcanoinHawaiiisperhapsthemostactivevolcanointheworld;itisrecordedthatthere’saneruptionalmosteveryfouryears.TheKilaueavolcanoinHawaii192004年6月2日，夏威夷的基拉韋厄活火山(Kilaueacaldera)噴出熔巖。2004年6月2日，夏威夷的基拉韋厄活火山(Kilauea202008年3月18日，夏威夷基勞維亞(Kilauea)火山噴發(fā)，火山灰從出口向外噴散?；鹕絿姲l(fā)產(chǎn)生的巖屑散布于方圓30公頃，一處深受游客喜愛(ài)的觀景臺(tái)也受到巖屑的影響。這是海拔1277米的基勞維亞火山主火山口自從1924年以來(lái)的首次噴發(fā)。2008年3月18日，夏威夷基勞維亞(Kilauea212008年6月17日智利南部柴滕火山爆發(fā)?；鹕絿姲l(fā)出濃重的煙塵，并伴有隆隆的地動(dòng)聲，同時(shí)出現(xiàn)了兩個(gè)新火山口。這座火山從5月2日開(kāi)始噴發(fā)，已迫使4500名居民從柴滕火山附近的一座小村莊撤出。從布蘭科(Blanco)河中溢出的水已經(jīng)對(duì)這個(gè)村子造成嚴(yán)重破壞，由于有大量火山灰落入河中，河水變得非常粘稠。2008年6月17日智利南部柴滕火山爆發(fā)?；鹕絿姲l(fā)出濃222008年6月6日，位于印度尼西亞米納哈薩半島上的索普坦火山噴出滾滾濃煙。索普坦火山當(dāng)天開(kāi)始噴發(fā)濃煙和火山灰，高度達(dá)2到4公里。

2008年6月6日，位于印度尼西亞米納哈薩半島上的索普坦火山232006年1月11日，美國(guó)阿拉斯加地區(qū)霍內(nèi)市西南75英里處的奧古斯丁火山兩次短暫噴發(fā)，噴出的灰燼彌漫到高達(dá)5英里(8公里)的空中，向庫(kù)克水道方向飄去。圖為1月12日的奧古斯丁火山。

2006年1月11日，美國(guó)阿拉斯加地區(qū)霍內(nèi)市西南75英24素有“歐洲最高的活火山”之稱的意大利西西里島埃特納火山(MountEtna)，海拔3340米。2002年10月30日，國(guó)際空間站上的工作人員觀察到埃特納火山的爆發(fā)過(guò)程。山的下坡和山頂北邊顏色較淡的煙柱，是由熔巖流入山坡上的松樹(shù)林引起的森林大火造成的。素有“歐洲最高的活火山”之稱的意大利西西里島埃特納火山25維蘇威火山(Vesuvius)，意大利乃至全世界最著名的火山之一，海拔高度1281米。維蘇威火山在歷史上多次噴發(fā)，最為著名的一次是公元79年的大規(guī)模噴發(fā)，灼熱的火山碎屑流毀滅了當(dāng)時(shí)極為繁華的擁有2萬(wàn)人口的龐貝古城。

維蘇威火山(Vesuvius)，意大利乃至全世界最著名的火26Unit-5-The-power-of-natu教學(xué)講解課件27volcano-eruptionBoilingrockeruptsfromthecrater;thelavaflowsslowlydownthemountain.

Magmachamber巖漿儲(chǔ)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無(wú)關(guān)緊要的

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(海嘯)tsunami(海嘯)62熱帶風(fēng)暴在西太平洋叫臺(tái)風(fēng),是因?yàn)槲覈?guó)臺(tái)灣的原因;龍卷風(fēng)是因?yàn)楦呖沾髿鈱?duì)流導(dǎo)致對(duì)地面或水面的氣流強(qiáng)烈的吸引旋轉(zhuǎn).

熱帶風(fēng)暴在西大西洋和印度洋叫颶風(fēng),它倆都是熱帶風(fēng)暴.而海嘯是因?yàn)楹５椎卣鸹驘釒эZ風(fēng)等引起的海水涌動(dòng).熱帶風(fēng)暴在西太平洋叫臺(tái)風(fēng),是因?yàn)槲覈?guó)臺(tái)灣的原因;63SandstormSandstorm64earthquakeearthquake65snow

slide(雪崩)snowslide(雪崩)66forestfireforestfire67mudflow(泥流)mudflow(泥流)68volcaniceruptionvolcaniceruption69Whilefacingthosenaturaldisasters,wefeel…h(huán)ow________natureisandhow______humansarecomparedwithnatural____________.facedwithpowerfulweakdisastersWhilefacingthosenaturaldis70Haveyoueverseenavolcano?Haveyoueverseenavolcano?71Unit-5-The-power-of-natu教學(xué)講解課件72TheKilaueavolcanoinHawaiiisperhapsthemostactivevolcanointheworld;itisrecordedthatthere’saneruptionalmosteveryfouryears.TheKilaueavolcanoinHawaii732004年6月2日，夏威夷的基拉韋厄活火山(Kilaueacaldera)噴出熔巖。2004年6月2日，夏威夷的基拉韋厄活火山(Kilauea742008年3月18日，夏威夷基勞維亞(Kilauea)火山噴發(fā)，火山灰從出口向外噴散。火山噴發(fā)產(chǎn)生的巖屑散布于方圓30公頃，一處深受游客喜愛(ài)的觀景臺(tái)也受到巖屑的影響。這是海拔1277米的基勞維亞火山主火山口自從1924年以來(lái)的首次噴發(fā)。2008年3月18日，夏威夷基勞維亞(Kilauea752008年6月17日智利南部柴滕火山爆發(fā)?；鹕絿姲l(fā)出濃重的煙塵，并伴有隆隆的地動(dòng)聲，同時(shí)出現(xiàn)了兩個(gè)新火山口。這座火山從5月2日開(kāi)始噴發(fā)，已迫使4500名居民從柴滕火山附近的一座小村莊撤出。從布蘭科(Blanco)河中溢出的水已經(jīng)對(duì)這個(gè)村子造成嚴(yán)重破壞，由于有大量火山灰落入河中，河水變得非常粘稠。2008年6月17日智利南部柴滕火山爆發(fā)?；鹕絿姲l(fā)出濃762008年6月6日，位于印度尼西亞米納哈薩半島上的索普坦火山噴出滾滾濃煙。索普坦火山當(dāng)天開(kāi)始噴發(fā)濃煙和火山灰，高度達(dá)2到4公里。

2008年6月6日，位于印度尼西亞米納哈薩半島上的索普坦火山772006年1月11日，美國(guó)阿拉斯加地區(qū)霍內(nèi)市西南75英里處的奧古斯丁火山兩次短暫噴發(fā)，噴出的灰燼彌漫到高達(dá)5英里(8公里)的空中，向庫(kù)克水道方向飄去。圖為1月12日的奧古斯丁火山。

2006年1月11日，美國(guó)阿拉斯加地區(qū)霍內(nèi)市西南75英78素有“歐洲最高的活火山”之稱的意大利西西里島埃特納火山(MountEtna)，海拔3340米。2002年10月30日，國(guó)際空間站上的工作人員觀察到埃特納火山的爆發(fā)過(guò)程。山的下坡和山頂北邊顏色較淡的煙柱，是由熔巖流入山坡上的松樹(shù)林引起的森林大火造成的。素有“歐洲最高的活火山”之稱的意大利西西里島埃特納火山79維蘇威火山(Vesuvius)，意大利乃至全世界最著名的火山之一，海拔高度1281米。維蘇威火山在歷史上多次噴發(fā)，最為著名的一次是公元79年的大規(guī)模噴發(fā)，灼熱的火山碎屑流毀滅了當(dāng)時(shí)極為繁華的擁有2萬(wàn)人口的龐貝古城。

維蘇威火山(Vesuvius)，意大利乃至全世界最著名的火80Unit-5-The-power-of-natu教學(xué)講解課件81volcano-eruptionBoilingrockeruptsfromthecrater;thelavaflowsslowlydownthemountain.

Magmachamber巖漿儲(chǔ)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無(wú)關(guān)緊要的

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