Unit4SectionA(1a2d)课件人教版八年级英语下册

Unit4TheWondersofNature

Whatisamazingaboutnature?SectionA(1a-2d)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1.

Doyouknowthenameofthewaterfallinthephoto?2.Whatdoyouthinkisspecialaboutit?3.Whatothernaturalwondersdoyouknow?LookandshareYes,it'sVictoriaFalls.It'soneofthelargestwaterfallsintheworld,withawidecurtain(幕)ofwater.TheGrandCanyon,theHuangguoshuWaterfall,MountQomolangmaandtheAmazonRainforest.LearningObjectives通过本课时的学习，学生能够：

识别并记忆与“自然奇观”相关的核心词汇；；掌握描述地理特征的最高级句型（如thehighest/thelargest/thelowest/thedeepestintheworld等），在听力与对话活动中，获取地点、特征和数据的核心信息。(学习理解)

通过完成听力填空、匹配图片、补全对话等练习，提升信息提取与逻辑梳理能力；在模拟谈论自然奇观的场景中，运用目标句型进行问答与描述，清晰交流地理知识，并积极参与双人对话与角色扮演。(学习理解，应用实践)结合世界地理的实际场景，与同伴讨论更多自然奇观的位置、规模和特点，提升在真实生活场景中用英语交流地理知识的综合语言运用能力，培养对自然的探索欲与保护意识。(迁移创新)03Takepartintheclassctively.Thinkabouteverythingritically.Answerthequestionsravely.Therearemanyamazingplacesintheworld.Doyouknowthem?AMAZINGPLACESGameShowLookatthepicturesandnametheminEnglishorChinese.Pre-listeningMountQomolangmaNewwords:

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

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

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

安赫尔瀑布（也译作“天使瀑布”）/ˈeɪndʒlfɔːlz/GameShowAnswerthequestionsasquicklyasyoucan.Pre-listeningWhat’sthebiggestdesertonearth?It’stheSaharaDesert.Newwords:

沙漠；荒原/'dezət/n.Howbigisit?It’saboutabout9,000,000

insize.squarekilometresNewwords:

平方千米GameShowAnswerthequestionsasquicklyasyoucan.Pre-listeningWhat’sthelowestplaceonearth?It’stheDeadSea.Howlowisit?Its

is416metresbelow

.surfacesealevelNewwords:

在（…）下面；低于/bɪ'ləʊ/prep.&adv.Newwords:

海平面/'levl/Newwords:

高度；水平；程度/'levl/n.Workon1aMatchtheplaceswiththepictures.Pre-listening____NileRiver____AngelFalls____MountQomolangma____Deadsea____SaharaDesert____MarianaTrenchA

D

E

C

FADCEBF

B

Let’schantPre-listeningTherearesomanywondersofnature.Isay“mount

yousay“MountQomolangma”Isay“desert”yousay

“SaharaDesert”Isay

“sea”yousay

“DeadSea”Isay

“trench”yousay

“MarianaTrench”Isay“river”

yousay

“NileRiver”Isay“fall”

yousay“AngelFalls”Workon1bListentothegameshow.Completethedescriptionsoftheplaces.While-listeningPlaceDescriptionMountQomolangmathe

intheworldSaharaDesertthe

intheworldDeadSeathe

onearthMarianaTrenchthe

intheoceanhighestmountainbiggestdesertlowestplacedeepestpointWorkon1CListenagain.Completethemeasurementsin1bwiththenumbersbelow.While-listening4168,848.8611,0009,000,000PlaceMeasurementMountQomolangma________metreshighSaharaDesertabout________squarekilometresinsizeDeadSea________metresbelowsealevelMarianaTrenchabout________metresdeepNewwords:

数量；测量/'meʒəmənt/n.英语数字读法英语中，数字从后往前数，每三位标一个逗号。例：

9,000,000百位和十位中间加and小数点读作point,小数点后的数字逐个单独读出。thousandmillionWorkon1CListenagain.Completethemeasurementsin1bwiththenumbersbelow.While-listening4168,848.8611,0009,000,000PlaceMeasurementMountQomolangma

metreshighSaharaDesertabout

squarekilometresinsizeDeadSea________metresbelowsealevelMarianaTrenchabout

metresdeep8,848.869,000,00041611,000ListenandfollowPost-listeningTip:Payattentiontothetone,intonation,stressandpronunciation.Host:Welcometoourgameshow!Today,it'sallaboutgeography.Answerasquicklyasyoucan!Questionone:Whatisthehighestmountainintheworld?FuXing:It'sMountQomolangma!Host:Correct!Howhighisit?LiuHongyu:Iknowthis—it's8,848.43metreshigh.Host:No,sorry.FuXing?FuXing:Isit8,848.86metres?Host:Yes!ButsomescientistssayQomolangmaisstillgrowingtaller!Now,namethebiggestdesertintheworld.FuXing:TheTaklimakanDesert?

Host:Welcometoourgameshow!Today,it'sallaboutgeography.Answerasquicklyasyoucan!Questionone:Whatisthehighestmountainintheworld?FuXing:It'sMountQomolangma!Host:Correct!Howhighisit?LiuHongyu:Iknowthis—it's8,848.43metreshigh.Host:No,sorry.FuXing?FuXing:Isit8,848.86metres?Host:Yes!ButsomescientistssayQomolangmaisstillgrowingtaller!Now,namethebiggestdesertintheworld.FuXing:TheTaklimakanDesert?

Newwords:

塔克拉玛干/ˌtæklɪˈmɑːkən/ListenandfollowPost-listeningTip:Payattentiontothetone,intonation,stressandpronunciation.

Host:Wrong!Ella?Ella:It'stheSaharaDesert.Host:Right!Now,howbigisit?Ella:It'sabout9,000,000squarekilometres.Host:That'sright!What'sthelowestplaceonearth?LiuHongyu:It'stheDeadSea!Host:Welldone!Itssurfaceis416metresbelowsealevel.Nowwhere'sthedeepestpointintheocean?FuXing:It'sintheMarianaTrench.Host:That'scorrect!Howdeepisit?FuXing:It'sabout11,000metresdeep.Host:Correct!Host:Wrong!Ella?Ella:It'stheSaharaDesert.Host:Right!Now,howbigisit?Ella:It'sabout9,000,000squarekilometres.Host:That'sright!What'sthelowestplaceonearth?LiuHongyu:It'stheDeadSea!Host:Welldone!Itssurfaceis416metresbelowsealevel.Nowwhere'sthedeepestpointintheocean?FuXing:It'sintheMarianaTrench.Host:That'scorrect!Howdeepisit?FuXing:It'sabout11,000metresdeep.Host:Correct!Listenagainandfillintheblanks.Post-listeningHost:Welcometoourgameshow!Today,it'sallabout

.Answer

!Questionone:Whatisthe

mountainintheworld?FuXing:It'sMountQomolangma!Host:Correct!isit?LiuHongyu:Iknowthis—it's8,848.43metreshigh.Host:No,sorry.FuXing?FuXing:Isit8,848.86metres?Host:Yes!ButsomescientistssayQomolangmaisstill

taller!Now,namethebiggest

intheworld.FuXing:TheTaklimakanDesert?Host:Wrong!Ella?Ella:It'stheSaharaDesert.Host:Right!Now,isit?Ella:It'sabout9,000,000

.Host:That'sright!What'sthe

placeonearth?LiuHongyu:It'stheDeadSea!Host:Welldone!Its

is416metresbelow

.Nowwhere'sthedeepestpointintheocean?FuXing:It'sintheMarianaTrench.Host:That'scorrect!isit?FuXing:It'sabout11,000metresdeep.Host:Correct!geographyasquicklyasyoucanhighestHowhighgrowingdeserthowbigsquarekilometreslowestsurfacesealevelHowdeep地理尽可能快地最高的有多高生长/增高

沙漠

有多大

平方千米

最低的

表面

海平面

有多深Role-playPost-listeningHost:Welcometoourgameshow!Today,it'sallaboutgeography.Answerasquicklyasyoucan!Questionone:Whatisthehighestmountainintheworld?FuXing:It'sMountQomolangma!Host:Correct!Howhighisit?LiuHongyu:Iknowthis—it's8,848.43metreshigh.Host:No,sorry.FuXing?FuXing:Isit8,848.86metres?Host:Yes!ButsomescientistssayQomolangmaisstillgrowingtaller!Now,namethebiggestdesertintheworld.FuXing:TheTaklimakanDesert?Host:Wrong!Ella?Ella:It'stheSaharaDesert.Host:Right!Now,howbigisit?Ella:It'sabout9,000,000squarekilometres.Host:That'sright!What'sthelowestplaceonearth?LiuHongyu:It'stheDeadSea!Host:Welldone!Itssurfaceis416metresbelowsealevel.Nowwhere'sthedeepestpointintheocean?FuXing:It'sintheMarianaTrench.Host:That'scorrect!Howdeepisit?FuXing:It'sabout11,000metresdeep.Host:Correct!TextanalysisPost-listeningHost:Welcometoourgameshow!Today,it'sallaboutgeography.Answerasquicklyasyoucan!Questionone:Whatisthehighestmountainintheworld?FuXing:It'sMountQomolangma!Host:Correct!Howhighisit?LiuHongyu:Iknowthis—it's8,848.43metreshigh.Host:No,sorry.FuXing?FuXing:Isit8,848.86metres?Host:Yes!ButsomescientistssayQomolangmaisstillgrowingtaller!Now,namethebiggestdesertintheworld.FuXing:TheTaklimakanDesert?

Host:Wrong!Ella?Ella:It'stheSaharaDesert.

Host:Right!Now,howbigisit?Ella:It'sabout9,000,000squarekilometres.Host:That'sright!What'sthelowestplaceonearth?LiuHongyu:It'stheDeadSea!Host:Welldone!Itssurfaceis416metresbelowsealevel.Nowwhere'sthedeepestpointintheocean?

FuXing:It'sintheMarianaTrench.Host:That'scorrect!Howdeepisit?FuXing:It'sabout11,000metresdeep.Host:Correct!Places&DescriptionWhatisthe...intheworld/onearth?where'sthe..intheocean?It’s...MeasurementHowhigh/big/deepisit?It’sabout...high/squarekilometers/deep.Itssurfaceis416metresbelowsealevel.ReadandretellReadthegameshowagainandtrytoretelltheplaces.Post-listeningYoumaybeginlikethis:Therearemanyamazingnaturalplacesonourplanet.MountQomolangmais.....PlaceDescriptionMeasurementMountQomolangmathe...intheworld8,848.86....SaharaDesertthe...intheworldabout9,000,000....DeadSeathe....onearth416metres....MarianaTrenchthe....intheoceanabout11,000metres...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AnexampleA:What’sthelowestplaceonearth?B:It’stheDeadSea.A:Howlowisit?B:Itssurfaceis416metresbelowsealevel.A:Now,what’sthehighestmountainintheworld?B:It’sMountQomolangma.A:Howhighisit?B:It’s8,848.86metreshigh.SummarySummarizethewondersofnature.Post-listeningthewondersofnatureMountQomolangmathehighestSaharaDesertthebiggestDeadSeathelowestMarianaTrenchthedeepest8,848.869,000,00041611,000Workon2aWhatdoyouknowaboutthedeepsea?Completethesentenceswiththeinformationfromthepicture.Post-listening1.Fendouzhereached______________.2.Thedeepseabeginsat______________.3.TheTitanicrestsat____________.4.Awhalecandiveto_________________.Newwords:

深（度）；纵深/depθ/n.Newwords:

潜水；跳水；俯冲/daɪv/v.&n.Workon2aWhatdoyouknowaboutthedeepsea?Completethesentenceswiththeinformationfromthepicture.Post-listening1.Fendouzhereached______________.2.Thedeepseabeginsat______________.3.TheTitanicrestsat____________.4.Awhalecandiveto_________________.10,909metres200metres3,800metresover2,000metresWhatdoyouwanttoaskthisdeep-searesearcher?WhichChinesesubmersiblediveddeeperinthewaterthanmanyothers?Newwords:

潜水艇/səbˈmɜːsəbl/v.Workon2bAclassisaskingadeep-searesearchersomequestionsafterhistalk.Listenandtickthetopicstheydiscuss.Post-listening□Where

the

deep

sea

begins□Why

people

are

researching

the

deep

sea□WhichChinesesubmersiblediveddeeperinthewaterthanmanyothers□Whatdeep-seaanimalsarelike□HoweveryoneshouldprotectthedeepseaWorkon2CListenagain.Completethesentenceswiththefactsfromtheconversation.Post-listening1.

People

still

don’t

know

much

about

the

.2.

In

,

China’s

Fendouzhe

dived

into

the

deep

sea

andfilmed

it.3.

Some

animals

have

unusual

abilities.

Some

are

but

can

“sea”.

Some

can

even

createtheirown

.4.

There

is

rubbish

even

at

metres

deep.Newwords:

特别的；不寻常的/ʌnˈjuːʒuəl/adj.2020oceanfloorblind

light11,000Listenagainandfillintheblanks.Post-listeningMsGao:Thankyouforthe

,MrJones.Now,doesanyonehaveanyquestions?Emma:Ido!Whyaresomanycountriesresearchingthe

?MrJones:Well,

.Wedon'tknowenoughaboutthe

.FuXing:Irememberthatin2020,China'sFendouzhe

deeperintotheMarianaTrenchthanmanyother

intheworldand

it.ButIdidn'tseeanydeep-seaanimals.Whataretheylike?MrJones:Well,manydeep-seaanimalsarelargeand

.Someanimalsareblind,buttheycan"see"others.Someeven

theirownlight!Peter:Cool!Arethereanyother

aboutthedeepsea?MrJones:Didyouknowthatthere's

evenat11,000metresdeep?That

manypeople.MsGao:That's

!Weshoulddosomethingaboutit.MrJones:You'reright!wonderfultalkdeepseacuriosityisonereasonoceanfloordivedsubmersiblesfilmedunusualaswellascreatesurprisingfactsrubbishshockedterrible精彩的演讲深海好奇心是原因之一海底下潜潜水器拍摄不寻常的和……一样好创造令人惊讶的事实垃圾使震惊糟糕的TextanalysisPost-listeningMsGao:Thankyouforthewonderfultalk,MrJones.Now,doesanyonehaveanyquestions?Emma:Ido!Whyaresomanycountriesresearchingthedeepsea?MrJones:Well,curiosityisonereason.Wedon'tknowenoughabouttheoceanfloor.FuXing:Irememberthatin2020,China'sFendouzhediveddeeperintotheMarianaTrenchthanmanyothersubmersiblesintheworldandfilmedit.ButIdidn'tseeanydeep-seaanimals.Whataretheylike?MrJones:Well,manydeep-seaanimalsarelargeandunusual.Someanimalsareblind,buttheycan"see"aswellasothers.Someevencreatetheirownlight!Peter:Cool!Arethereanyothersurprisingfactsaboutthedeepsea?MrJones:Didyouknowthatthere'srubbishevenat11,000metresdeep?Thatshockedmanypeople.MsGao:That'sterrible!Weshoulddosomethingaboutit.MrJones:You'reright!TopicsAnswersWorkon2dPost-listeningReadthequestionsandthinkofmoreyouwouldliketoaskthedeep-searesearcher.Researchtheanswers.Thenaskandanswerthequestionswithapartner.What

is

the

largest

shark

in

the

deep

sea?Why

is

itimportanttoresearchthe

deep

sea?What

is

the

bottom

of

the

deep

sea

like?Newwords:

底部；最下部/ˈbɒtəm/n.Workon2dThesewordsorphrasesmayhelpyou.Post-listeningwhaleshark（鲸鲨）slow-moving（移动缓慢的）upto12meterslong（长达12米）dark（黑暗的）cold（寒冷的）highpressure（高压）strangecreatures（奇特生物）nosunlight（没有阳光）discovernewspeciesunderstandclimatechange

（发现新物种）

（了解气候变化）

findnaturalresourcesprotectseaanimals

（寻找自然资源）

（保护海洋动物）learnaboutEarth’shistorydevelopnewtechnology

（了解地球历史）

（发展新技术）AnexampleA:Whatisthelargestsharkinthedeepsea?B:Ithinkit’sthewhaleshark.A:Doyouknowhowlargeitis?B:Itcangrowuptoabout10to20metresinlength.A:Whatisthebottomofthedeepsealike?B:Itisdark,freezing,andhashighpressure.Therearealsomanyuniquecreatures.A:Whyisitimportanttoresearchthedeepsea?B:Becausethedeepseahasuniquespeciesforresearch,holdsimportantresources,andcanhelpcontrolourclimate.Languagepoints重点短语1.

在地球上2.平方千米3.

低于/高于海平面

4.潜人深海

5.……的底部

onearthsquarekilometrebelow/abovesealeveldiveintothedeepseathebottomof…1.TheWondersofNature!自然奇观【P31】①wonder/ˈwʌndə(r)/n.奇观；惊叹v.琢磨；想知道；感到诧异

高频②n.[C]奇观；奇迹

TheGrandCanyonisoneofthenaturalwondersoftheworld.

科罗拉多大峡谷是世界自然奇观之一。

v.琢磨；想知道（相当于wanttoknow）Ifyoustudyphysics,youwonderwhylighttravelsfasterthansound.

如果你学习物理，你会想知道为什么光比声音传播速度快。v.感到诧异Iwonderedatherbeautifulsinging.

她优美的歌声让我惊讶。1.ThepyramidsinEgyptareoneofthemostfamous___________(wonder)oftheancientworld.2.I_________(wonder)ifyoucouldhelpmesolvethismathproblem.Welookedatthebeautifulsunsetin__________(wonder).3.He____________(wonder)whytheskyturnedredjustnow.wonderswonderwonderwondered2.about9,000,000squarekilometresinsize.

面积约900万平方千米

（教材P321b）①squaremetre/mile

平方米/英里②square[名词]广场；正方形我们的工厂占地5平方千米。Ourfactorycoversanareaoffive___________________.squarekilometres

请在纸上画一个正方形。Pleasedraw__________onthepaper.asquare3.3416metresbelowsealevel低于海平面416米（教材P321b）①below/bɪˈləʊ/prep.在（或到）……下面；少于；低于adv.在（或到）下面②(地方或位置)在(或到)……下面在水面以下超过152米的地方，日光几乎消失了。Atover152metres_____________________thewater,thedaylightisalmostgone.belowthesurfaceof③(数量、水平等)少于；低于我们家乡的气温在冬天通常会降到零度以下。Thetemperatureinourhometownusuallydrops______________inwinter.belowzero4.3416metresbelowsealevel低于海平面416米（教材P321b）④below表示在某物的下方，但不一定是在正下方

under表示在某物的正下方⑤

level/ˈlevl/n.高度；水平；程度

高度sealevel海平面Themountainisabout8,000metresabovethesealevel.

这座山的海拔大约为8000米。

水平；程度

常与介词of连用。

ahigh/lowlevel

高/低水平Aslongaswekeepworking,wewillachievehigherlevels.

只要我们继续努力，我们会达到更高的水平。5.Deepestdiveofawhale鲸鱼下潜的最大深度（教材P322a）①

dive/daɪv/v.&n.潜水；跳水；俯冲②

[不及物动词]潜水；跳水；俯冲

divedown

潜入；下潜；俯冲

diveinto

跳入；跳进③

[名词]潜水；跳水；俯冲

那个男人跳入河中去救溺水的小孩。Theman_____________therivertosavethedrowningchild.divedinto

他做了个漂亮的跳水动作。Hemade_____________________.abeautifuldive6.Whypeopleareresearchingthedeepsea?

为什么人们要研究深海？（教材P322a）research

v.&n.研究;调查researchsth.

调查某事/物

researchinto/on对……的研究

（研究方向）

他为论文研究了欧洲国家的环保政策。

He_________________environmentalpoliciesinEuropeancountriesforhisthesis.researchedon7.Someanimalshaveunusualabilities.

有些动物拥有非凡的能力。

（教材P332c）8.Whatothervesselsdivedtothebottomoftheocean?

还有哪些潜水器潜入过海底?（教材P332d）(at)thebottomof：在……的底部fromtoptobottom：从上到下；彻底地fromthebottomofone'sheart：由衷地，从心底里

他们花了六个小时才到达山脚下。

Ittookthemsixhourstoreach__________________________.thebottomofthemountain

池塘底部有一条鱼。

Thereisafish_________________________