Unit4TheWondersofNatureSectionA1a~1d课件人教版英语八年级下册

TheWondersTheWondersTheWondersUnit4第一课时1a-1dofNatureofNatureofNature八年级下册英语人教版SectionAWhatisamazingaboutnature?Inthisunit,

you

will

1.talkaboutgeographyfactsaboutnaturalwonders.2.comparefactsaboutfamousplaces.3.sharegeographyfactsusinglargenumbers.4.explorehowandwhypeopleconnectwithnature.地理事实自然奇观大数字建立联系LookandShare1.Doyouknowthenameofthewaterfallinthephoto?Whereisit?

ItisVictoriaFalls.2.Whatdoyouthinkisspecialaboutit?Ithinkitislargeandwide.It’soneofthethreegreatwaterfallsintheworld.3.Whatothernaturalwondersdoyouknow?YangtzeRiver,theGreatWall,

MountQomolangma,......[ˈnætʃrəlˈwʌndəz]Therearemanyamazingplacesintheworld.Let’sgotraveling!AMAZINGPLACESGameShowLookatthepicturesandnametheminEnglishorChinese.Pre-listeningMountQomolangmaNewwords:

珠穆朗玛峰/ˌtʃəʊməʊˈlɑːŋmə/mountainGameShowLookatthepicturesandnametheminEnglishorChinese.Pre-listeningMarianaTrenchNewwords:

马里亚纳海沟/ˌmæriˈɑːnətrentʃ/trenchGameShowLookatthepicturesandnametheminEnglishorChinese.Pre-listeningNileRiverNewwords:

尼罗河/naɪlˈrɪvə(r)/riverGameShowLookatthepicturesandnametheminEnglishorChinese.Pre-listeningAngelFallsNewwords:

安赫尔瀑布（也译作“天使瀑布”）/ˈeɪndʒlfɔːlz/waterfallGameShowAnswerthequestionsasquicklyasyoucan.Pre-listeningWhat’sthehighestmountainonearth?It’stheMountQomolangma.Howhighisit?It’sabout

metreshigh.8,848.86GameShowAnswerthequestionsasquicklyasyoucan.Pre-listeningWhat’sthebiggestdesertonearth?It’stheSaharaDesert.Howbigisit?It’sabout9,000,000

(平方千米)insize.squarekilometresGameShowAnswerthequestionsasquicklyasyoucan.Pre-listeningWhat’sthelowestplaceonearth?It’stheDeadSea.Howlowisit?Its(表面)is416metresbelow___________(海平面)./bɪ'ləʊ/surfacesealevelsaltlakeGameShowAnswerthequestionsasquicklyasyoucan.Pre-listeningWhat’sthedeepestpointintheocean?It’stheMarianaTrench.Howdeepisit?It’sabout11,000

.metresdeepMatchtheplaceswiththepictures.1aPre-listening____NileRiver____AngelFalls____MountQomolangma____Deadsea____SaharaDesert____MarianaTrenchFADCEBABCDEF[naɪl][ˈtʃəʊməʊˌlɑːŋmə][ˈeɪndʒl][səˈhɑːrə][ˌmæriˈænə

trentʃ

]While-listening1bListentothegameshow.Completethedescriptions(描述)oftheplaces.PlaceDescriptionMountQomolangmathe________________

intheworldSaharaDesertthe

intheworldDeadSeathe

onearthMarianaTrenchthe________________

intheoceanhighestmountainbiggestdesertlowestplacedeepestpointWhatdotheyhaveincommon?MountQomolangmaisthehighestmountain

intheworld.the+

最高级+介词短语[ˈtʃəʊməʊˌlɑːŋmə][səˈhɑːrə][ˌmæriˈænə

trentʃ

]LookandsayMountQomolangmaDeadSeaSaharaDesertYangtzeRiverGreatBarrierReef大堡礁MarianaTrench[ˈtʃəʊməʊˌlɑːŋmə][səˈhɑːrə][ˈbæriəri:f][ˌmæriˈænə

trentʃ

]A:Whatisthe...onearth/intheocean?B:It’sthe...thehighestmountainthelowestplacethelargestdessertthethirdlongestriverthebiggestreefthedeepestpointWhile-listening1cListenagain.Completethemeasurements(测量数据)withthenumbersbelow.PlaceMeasurementMountQomolangma__________

metreshighSaharaDesertabout__________squarekilometresinsizeDeadSea__________

metresbelowsealevelMarianaTrenchabout

__________

metresdeepHowtoreadnumbersinEnglish?25100525999twenty-fiveonehundredfivehundredandtwenty-fiveninehundredandninety-nineHowtoreadnumbersinEnglish?10001,02555,58764.84onethousandonethousandandtwenty-fivefifty-fivethousandfivehundredandeighty-sevensixty-fourpointeightfourHowtoreadnumbersinEnglish?9,600,00018,657,432ninemillionsixthousandeighteenmillionsixhundredandfifty-seventhousandfourhundredandthirty-twoTip:把长数字从右到左分为3个数字一组，用逗号隔开，第一个逗号看作

thousand，第二个逗号看作million（百万），第三个逗号billion（亿）

e.g.1,234,567,891.02thousandmillionbillionLet'slearnHowtoreadlargenumbers?4168,848.8611,0009,000,000416:8,848.86:11,000:9,000,000:fourhundredandsixteeneightthousandeighthundredandforty-eightpointeightsixeleventhousandninemillion/'mɪljən/While-listening1cListenagain.Completethemeasurements(测量数据)withthenumbersbelow.PlaceMeasurementMountQomolangma__________

metreshighSaharaDesertabout__________squarekilometresinsizeDeadSea__________

metresbelowsealevelMarianaTrenchabout

__________

metresdeep8,848.869,000,00041611,000km2平方千米海平面基数词+单位词+形容词（long,wide,high,deep等）

/介词短语（insize,belowsealevel等）MountQomolangmais8,848.86

metreshigh.Listenandrepeat.After-listening↘

↘

↘

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↘

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After-listeningP98Listen,underline&answer.Whatdidthehostaskabout?thehighestmountainWhatisthehighestmountainintheworld?HeightHowhighisit?—It’s...metreshigh.thebiggestdesertnamethebiggestdesertintheworld.SizeHowbigisit?—It’s...squarekilometres.thelowestplaceonearthWhat’sthelowestplaceonearth?thedeepestpointintheoceanWhere’sthedeepestpointintheocean?DepthHowdeepisit?—It’s...metresdeep.Question/RequestPost-listeningPlaceDescriptionMeasurementMountQomolangmathe...intheworld8,848.86....SaharaDesertthe...intheworldabout9,000,000....DeadSeathe....onearth416metres....MarianaTrenchthe....intheoceanabout11,000metres...A:What’sthelowestplaceonearth?B:It’s...A:Howlowisit?B:It’ssurfaceis...metresbelowsealevel.A:Now,what’s...Talkabouttheplacesyouhavelearntabout.Workon1dTalkabouttheplacesyouhavelearntabout.Post-listeningA:What’sthelowestplaceonearth?B:It’s...A:Howlowisit?B:It’ssurfaceis...metresbelowsealevel.A:Now,what’s...ChecklistsStar1.Speakloudlyandfluently.声音响亮且流利2.Askandanswerquestionsclearly.问答清晰3.Usecorrectfactsaboutgeography.内容正确SummaryAskaboutnaturalwondersTalkaboutgeographyfactsGivefeedback(反馈)Whatisamazingaboutnature?•What’sthelowest/highest/biggest/deepestplaceintheworld/onearth?•Howlow/high/big/deepisit?•Where’s...?•It’s...•It’s...metres/kilometres(deep/high).It’s...squarekilometres(insize).•It’sin...•Correct!/Right!•No,sorry./Wrong.•That’sright/correct!•Welldone!/ThinkingWhydoyouthinkhumansaresoexcitedabout“thehighest”,“thedeepest”and“thebiggest”thingsinnature?Becausenatureissoamazing.Becausetheyshowthegreatpowerofnature.Becausepeopleenjoyexploringanddiscoveringnewthings.Becausehumanswanttolearnmoreabouttheworld.Exercise单词填空。1.TheGreatPyramidisagreat___________(奇观)oftheancientworld.2.Weneedtogettheexact____________(测量数据)oftheroombeforebuyingthecarpet.3.Thetemperaturetodayisfivedegrees___________(低于)zero.4.Thewater__________(水平面)inthelakeisrisingbecauseoftheheavyrain.5.The_________(表面)ofthemooniscoveredwithdustandrocks.6.MountQomolangmaisthe_________(high)mountainintheworld.7.TheSaharaisbyfarthe__________(large)hotdesertonEarth.8.What’sthe__________(deep)pointintheocean?—It’stheMarianaTrench.9.Scientistsusespecialtoolsforthe___________(measure)ofthetrench’sdepth.10.Welookedatthestarsand__________(wonder)ifthereislifeinspace.wondermeasurementbelowsurfacelevelhighestlarges