Unit4SectionA（2a2d）（教学课件）八年级英语下册教学课件（新教材人教版）

SectionA2a-2dUnit4TheWondersofNatureLearningAims语言能力文化意识思维品质学习能力掌握深海相关词汇及核心句型，能完成听力任务、进行简单对话。掌握图表标注、听力抓关键词等策略，提升合作学习与语言表达能力。通过分类归纳、逻辑分析，提升信息梳理与辩证表达能力。感受海洋壮美与神秘，培养敬畏自然、保护海洋的意识，增强中国深海探索成就带来的民族自豪感。思维品质：Whatdoyouknowaboutthedeepsea?Let’sfollowFenfouzhe

toexplore.40m200m500m3700m6000m10909msubmersible[səbˈmɜːsəbl]Fendouzhe（奋斗者号）Whatdoyouknowaboutthedeepsea?Completethesentenceswiththeinformationfromthepicture.1.Fendouzhereached______.2.Thedeepseabeginsat___.3.TheTitanicrestsat______.4.Awhalecandiveto______.2aDACBFendouzhe（奋斗者号）Fendouzheisasuperadvanceddeep-seasubmersible(潜水器)madebyChina.Itcancarryscientistsdowntothedeepestpartsoftheocean,liketheMarianaTrench.In2020,itsuccessfullyreachedthebottomofthetrench,over10,000metersdeep!Ithelpsusexplorethemysteriousdeepsea,discovernewcreatures,andlearnmoreaboutourplanet./səbˈmɜːrsəbl/Titanic

（泰坦尼克号）TheTitanicwasafamousBritishpassengershipbuiltover100yearsago.Itwasoncecalled"unsinkable"becauseitwasverylargeandhadmanysafetyfeaturesforitstime.InApril1912,itsetoffonitsfirsttripfromtheUKtotheUS,carryingmorethan2,200people.Sadly,ithitabigicebergintheAtlanticOceanandsankquickly.Aclassisaskingadeep-searesearchersomequestionsafterhistalk.Listenandtickthetopicstheydiscuss.Whoaretalkingintheconversation?Whathappenedbeforetheconversation?Studentsandadeep-searesearcher.Thedeep-searesearchergaveatalktostudents.2bwherethedeepseabeginswhypeopleareresearchingthedeepseawhichChinesesubmersiblediveddeeperinthewaterthanmanyotherswhatdeep-seaanimalsarelikehoweveryoneshouldprotectthedeepseaListenandtickthetopicstheydiscuss.Listenagain.Completethesentenceswiththefactsfromtheconversation.2c1.Peoplestilldon'tknowmuchaboutthe

_______________.2.In_________,

China'sFendouzhedivedintothedeepseaand

filmedit.3.Someanimalshaveunusualabilities.Someare

________butcan“see”.Somecanevencreate

theirown_________.4.Thereisrubbishevenat

___________metresdeep.oceanfloor2020blindlight11,000MsGao:Thankyouforthewonderfultalk,MrJones.Now,doesanyonehaveanyquestions?Emma:Ido!Whyaresomanycountries______________________?MrJones:Well,________isonereason.Wedon'tknowenoughabouttheoceanfloor.FuXing:Irememberthatin2020,China'sFendouzhe_______________theMarianaTrenchthanmanyothersubmersiblesintheworldandfilmedit.ButIdidn'tseeanydeep-seaanimals.Whataretheylike?MrJones:Well,manydeep-seaanimalsare________________.Someanimalsareblind,buttheycan"see"aswellasothers.Someeven__________________!Peter:Cool!Arethereanyothersurprisingfactsaboutthedeepsea?MrJones:Didyouknowthatthere'srubbishevenat11,000metresdeep?That________manypeople.MsGao:That'sterrible!Weshoulddosomethingaboutit.MrJones:You'reright!Listenagainandfillintheblanks.researchingthedeepseacuriositydiveddeeperintolargeandunusualcreatetheirownlightshockedWhatkindoflearnersareEmma,FuXingandPeter?StudentWhattheydoWhatwecanlearnEmmaFuXingPeterAsksaboutreasonsBecuriousabout

whyShareswhatheknows,thenasksformoreConnect

oldandnewknowledgeAsksformoresurprisingfactsAlwayswantto

godeeperMsGao: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!Thankyoufor+名词/动名词（因……感谢你）knowenoughabout...（对……了解足够多）diveddeeperinto...than...：“比……更深地潜入……”我记得，2020年中国的“奋斗者号”深潜器比世界上其他许多潜水器都更深地潜入了马里亚纳海沟，并对其进行了拍摄。aswellas和……一样好Peter:Cool!Arethereanyothersurprisingfactsaboutthedeepsea?MrJones:Didyouknowthatthere'srubbishevenat11,000metresdeep?Thatshockedmanypeople.MsGao:That'sterrible!Weshoulddosomethingaboutit.MrJones:You'reright!Didyouknowthat+宾语从句，从句用陈述语序

深度表达：at+数字+metresdeep

（在……米深的地方）Readthequestionsandthinkofmoreyouwouldliketoaskthedeep-searesearcher.Researchtheanswers.Thenaskandanswerthequestionswithapartner.2dWhatisthelargestsharkinthedeepsea?Whatisthebottomofthedeepsealike?Whyisitimportanttoresearchthedeepsea?Whatisthelargestsharkinthedeepsea?Whatisthebottomofthedeepsealike?TheGreenlandshark.Itcangrowverylong.Whyisitimportanttoresearchthedeepsea?It'sdark,coldandhashighpressure.Thereareflatareas,hydrothermalvents,seamountsandtrenches.Ithasuniquespeciesforscience/medicine,helpsregulateclimate,hasresourcesandhelpsuslearnthehistoryofearth.•Curiosity:

Itisthe

largestpartonearth,and

westilldon’tknowmuchaboutit.•AmazingLife:

Itishometo

unusualanimals.•Protection:

Humanactivitiesaffecteverywhere.

Weshoulddosomethingaboutit

andprotectourhome.•…Whyisitimportanttoresearchthedeepsea?ThedeepseaisimportantforEarthandhumansinmanyways.ClimateRegulation:Thedeepoceanabsorbsandstoreslargeamountsofheatandcarbondioxide,helpingtoregulatetheEarth'sclimate.SourceofResources:Ithasvaluableresourceslikeraremetals,naturalgas,andevennewmedicines.Biodiversity:Thedeepseaishometomillionsofuniquespecies....Workingroups.Isthedeepseaverycoldanddark?Arethereanylargestrangeanimalsinthedeepsea?Isitdangerousforhumanstodiveintothedeepsea?Howdodeep-seaanimalssurvivewithoutsunlight?Howdoesrubbishharmdeep-seaanimals?Whatdodeep-seaanimalseatinthedark?Whatcanstudentsdotoprotectthedeepsea?Weshould/can:stopthrowingrubbishintotheocean.pickuptrashwhenwevisitthebeach.reducetheuseofplasticbecauseplasticisharmfultosealife.learnaboutthedeepseaandtellotherstoprotectit.Language

pointsPoint1Whyaresomanycountriesresearchingthedeepsea?research此处作是动词，意为是“研究；调查”，其后直接接研究的对象e.g.Heisresearchingtheeffectsofplasticpollutionondeep-sealife.（他正在研究塑料污染对深海生物的影响。）research还可作不可数名词，意为

“研究；调查”e.g.Shespendsmostofhertimedoingresearchondeep-seacreatures.（她大部分时间都在做关于深海生物的研究。）Point2Whatisthebottomofthedeepsealike?〔名词〕底部；最下部对应词：top顶部；顶端常和介词“at”

“on”

“in”等搭配。(at)

thebottomof（在）……的底部fromtoptobottom从上到下；彻底地搭配【拓展】bottom还可作形容词，意为“底部的；最后的”。Pleaseputitinthebottomdrawer.

请把它放在最下面的抽屉里。Therearesomerocksatthebottomofthesea.

在海底有一些岩石。Lookatthewordsonthebottomofthepage.

看这页底部的单词。Ourhouseisatthebottomofthehill.

我们的房子在山脚下。2.

Whatisthebottomofthedeepsealike?

深海底部是什么样子的？bottom作名词，意为“底部；最下面”。常和介词“at”

“on”

“in”等搭配。Therearesomerocksatthebottomofthesea.

在海底有一些岩石。Lookatthewordsonthebottomofthepage.

看这页底部的单词。Ourhouseisatthebottomofthehill.

我们的房子在山脚下。【拓展】bottom还可作形容词，意为“底部的；最后的”。Pleaseputitinthebottomdrawer.

请把它放在最下面的抽屉里。Point3询问某物的深度时，常用句型“What’sone’sdepth?”或“What’sthedepthof...?”，相当于“Howdeepis/are...?”。〔名词〕深（度）；纵深OCEANDEPTHSWefoundwateratadepthof20metres.

我们在20米深处找到了水。形容词形式：deep深的；有……深的拓展What’sthedepthofthelakehere?=Howdeepisthelakehere?这儿的湖水有多深？Point4Awhalecandiveto_____.（1）〔动词〕潜水；跳水；俯冲Idivedbelowthesurfaceofthewater.我潜入了水中。Helikesdivingintotheswimmingpoolonhotdays.在炎热的天气里，他喜欢跳进泳池。（2）〔名词〕潜水；跳水；俯冲Thedivermadeadivetoadepthof18metres.

那名潜水者潜到了18米水深处。Point5Someanimalshaveunusualabilities…〔形容词〕特别的；不寻常的；罕见的Thecoachhasanunusualname.这个教练有个特别的名字。It’sunusualtoseearainbowinthedesert.在沙漠里看到彩虹是很罕见的。unusualadj.特别的；不寻常的

反义词：usualadj.平常的unusual由un-(表示否定)和usual构成，意为“不寻常的；特别的”【拓展】unusually

adv.不寻常地usually

adv.通常常用句型：It’sunusualtodosth.去做是不寻常的。Exercises单项选择1.Thescientistswill______(潜水)intothedeepseatostudytheunusualcreatures.2.Westilldon'tknowtheexact______(深度)ofsomepartsoftheocean.3.The________(deep)partoftheoceanisabout11,000metres.4.Somedeep-seaanimalslook_________(usual)andevenscary.5.The_______(bottom)oftheseaisdarkandquiet.divedepthdeepestunusualbottom一、根据括号内提示拼写单词二、选词填空。1.AspecialChinese__________calledFendouzhedivedverydeep.2.Manypeopleareveryinterestedinanimalswith________coloursandshapes.3.Many________animalscannotsee;theyare________.4.Someanimalscancreatetheirown________inthedark.5.Itissadtofind________evenonthedeep___________.submersibleunusual

deep-seablindlightdeep-sea submersibleunusualblindlight rubbish oceanfloorrubbishoceanfloor三、用括号内所给词的适当形式填空1.Let'stalk

aboutthenatural__________(wonder)inclass.2.Heoften________(share)hisstoriesabouttravelingwithus.3.The_____________(measure)oftheboxis20centimetreslong.4.Thisisoneofthe________(deep)lakesinourcountry.wonderssharesmeasurementdeepest5.Todayisan__________(usual)dayforJack.It’shistwentiethbirthday.6.Weneedtodosome_________(research)tofindouttheanswer.7.TheGreatWallisoneofthe__________(wonder)oftheworld.8.Holdinghisbreathforaboutthreeminutes,Jeraldswamdowntoa__________(deep)of112metres.unusualresearchwondersdepth四、根据要求完成句子。1.很多国家正在研究深海。Manycountriesare___________________________.2.有些深海动物是盲的，但它们能和其他动物一样“看见”。Somedeep-seaanimalsareblind,buttheycan“see”__________________others.3.奋斗者号在2020年潜入了马里亚纳海沟。Fendouzhe____________theMarianaTrenchin2020.4.甚至在11000米深的地方都有垃圾。Thereisrubbishevenat__________________.researchingthedeepseaaswellas