Unit4SectionA(3a-3d)第二课时课件人教版英语八年级下册

SectionA(3a-3d)TheWondersofNatureUnit41.identifykeygeographicalfactsabouttheYellowRiver,YangtzeRiverandNile.2.explainhowrivershelpcivilizationsdevelopandsuggestwaystoprotectthem.3.makeupnewconversationstotalkaboutChinesegeographicalfeaturesusingthetargetlanguage.What’sthehighestmoutain

intheworld?

MountQomolangma.Howhighisit?It’sabout8848.86metreshigh.What’sthebiggestdesert

intheworld?

SaharaDesert.Howbigisit?It’sabout9,000,000squarekilometresinsize.What’sthelowestplace

onearth?

DeadSea.Howlowisit?It’sabout416metresbelowsealevel.What’sthedeepestpoint

intheocean?

MarianaTrench.Howdeepisit?It’sabout11,000metreshigh.What’sthelongestriver

intheworld?

NileRiver.Howlongisit?It’saboutisabout6,671kilometerslong.Let’sthinkNileRiverIt’sthelongestriverintheworld.What’sthelongestriver

inChina?

YangtzeRiver=ChangjiangRiverWhatelsedoyouknowabouttheYangtzeRiver?Ella

Riversreallyplayanimporatntroleinourlives,don’tthey?Yes,Ican’tagreemore.Lasttrip,Ialsovisitedariver.Hereisaphotoofit.Canyouguesswhatitis?Let’spredictYaming2.Howmanyriversarementionedintheconversation?Whatarethey?Three.TheyaretheYellowRiver,theYangtzeRiver,andtheNileRiver.3.DoesEllaknowmuchaboutChineseriversatthebeginning?Howdoyouknow?No,shedoesn't.1.WhatriverdidEllavisitlasttrip?theYellowRiverShethoughttheYellowRivermightbethelongest.ReadandfindWhatdoYamingandEllaknowabouttheserivers?Readtheconversationagainandcompletethetable.RiverCountryLengthImportanceYellowRiver________________kmhelpedinthedevelopmentofancient____________NileRiver__________________kmChinaEygpt5,4646,671civilizations3b/ˌsɪvəlɪˈzeɪʃənz/文明WhatelseistheYellowRivercalled?motherriverLet’sthinkIt’syellow.Somepartsoftherivercarrybrownandyellowearth.Ithelpedancientcivilizationstodevelop.WhyisitcalledtheYellowRiverand“motherriver”?12Riversarestillveryimportanttoday.Weshouldprotectthematallcosts.不惜一切代价Yaming:Welcomeback,Ella!Howwasyourtrip?Ella:Itwasgreat!WesawtheHukouWaterfallontheYellowRiver.

IsthatthelongestriverinChina?Yaming:No,theYangtzeRiveristhelongestriverinChina.Ittravels

thefarthestandisabout6,300kilometreslong.TheYellow

Riveris5,464kilometreslongandisthesecondlongest.By

theway,doyouknowwhyit’scalledtheYellowRiver?Ella:Becauseit’syellow?Yaming:Right.Somepartsoftherivercarrybrownandyellowearth.Listentotheconversation.Thenrole-playit.3cWhilelistening,youshouldfocusonhowtheyspeak:Noticetheirtone(e.g.friendly,encouraging,proud...).Identifytheiremotions(e.g.excitement,hesitation,confidence...).Payattentiontopausesandemphasisoncertainwords.Ella:That’sinteresting!Ilikelearningaboutrivers.Myfavouriteis

theNile.Didyouknowit’sthelongestriverinAfrica?Yaming:Yes,it’s6,671kilometreslong.It’sveryimportantin

Egypt’shistory.Ella:That’sright.BoththeNileandtheYellowRiverhelpedancient

civilizationstodevelop.Andthey’restillveryimportanttoday.Yaming:Yes.InChina,weevencalltheYellowRiverour“mother

river”!Ella:Weshouldprotectthembyallmeans.Listentotheconversation.Thenrole-playit.3cNoticetheirtoneIdentifytheiremotionsPayattentiontopausesandemphasisImaginethatyouareYamingorElla.ContinuetheconversationwithapartneraboutothergeographicalfeaturesinChina.3dElla:CouldyoutellmemoreaboutChina,Yaming?Yaming:

Sure!Whatwouldyouliketoknow?Ella:

What’sthebiggestdesertinChina?Yaming:It’stheTaklimakanDesert.Ella:

Doyouknow...?ThelargestdesertTaklamakanDesert330，000km2(塔克拉玛干沙漠)

TheGreatWall21196.18km(长城)ThelongestwallTianchiLakeonChangbaiMountain373m(天池)Thedeepestlakehelpedthedevelopmentofancient...

帮助了古代...的发展developmentn.发展；壮大developv.发展developedadj.发达的；高度发展的固定搭配withthedevelopmentof随着……的发展Whatareyourplansforthedevelopmentofyourcompany?你打算怎样来发展壮大自己的公司？Languagepoints2.What’sthebiggestdesertinChina?

中国最大的沙漠是什么？desertn.沙漠；荒原v.抛弃；遗弃；擅离（职守）（1）Camelsarecalledthe“shipsofthedesert”.

骆驼被称为“沙漠之舟”。（2）Neverdesertyourfriendsintrouble.

永远不要在朋友困难时抛弃他们。

n.v.Languagepoints1.Listeningtocustomers’needsisan____________(重要)partofthisjob.

2.It’sdifficultforapersontowalkoutofthelarge__________(沙漠)alone.

3.Thenewruleisto____________(保护)people’spersonalinformation.

4.Italkedtotheprettywomen.____________(两个都)ofthemwereFrench.

5.TheAmazonRainforestshowsthepowerofnatural_________(发展)overmillionsofyears.

Exercise根据句意及汉语注释完成单词importantdesertprotectBothdevelopmentcarry

civilization

atallcosts

partof

far1.Timchosethe____________seatfromthedoor.

2.Tohaveacomfortablelivingenv