Unit 7 Section A第1课时示范教学课件【人教版八年级英语下册】

Unit7

What’sthehighest

mountainintheworld?第1课时SectionA1a-2dTask1(1a-1c)

Step1:Warming-up

Chinaisoneoftheoldestcounties.It’sover5,000yearsold.HowoldisChina?What’sthepopulationofChina?Chinahasthelargestpopulationintheworld.It’sabout1.3billion.HowMuchDoYouKnowAboutChina?n.人口

Step1:Warming-up

TheYangtzeRiver.It’salsothelongestinAsia.What’sthelongestriver?DoesChinahavethelargestareaintheworld?No,it’sthethirdlargestcountyintheworld.n.亚洲QomolangmaStep2:Pre-listeningDoyouknowtheseplaces?theNiletheCaspianSeaStep2:Pre-listeningtheSaharaStep2:Pre-listeningMatchthefactsyouknow.1aQomolangmaabout9,600,000squarekilometersinsizeTheSahara1,025metersdeepTheCaspianSea6,671kilometerslongTheNile8,844.43metershighStep2:Pre-listeningKeypoints1.1,025metersdeep深1025米（1）“数字＋meter(s)deep”是一种表达深度的方法。如：Theholeisabout5metersdeep.这个洞大约5米深。英语中，表示长、宽、高等时，主要有两种表达方式：①

基数词＋单位词十形容词（long，wide，high，deep等）②

基数词十单位词＋in＋名词（length，width，height，depth等）单位词有meter，foot，kilogram等。如：twometershigh／twometersinheight两米高（2）deep此处为形容词，意为“深的；纵深的”。如：TheCaspianSeaisthedeepestofallthesaltlake．里海是所有咸水湖中最深的。Step2:Pre-listening总结归纳：先从右往左数，每三位数加一个逗点（即以此把数目分为若干段）。第一个逗点前的数为thousand（千），第二个逗点前的数为million（百万），第三个逗点前的数为billion（十亿）。9,987,654,321millionbillionthousandnine

billion,ninehundredandeighty-seven

million,

sixhundredandfifty-fourthousand,three

hundred

andtwenty-onehundred解读：从右往左，第一个逗号前读thousand；向左再推三位，第二个逗号前读million；第三个逗号前读billion。2.千位以上基数词的表达法Step2:Pre-listeningQomolangma6,671kilometerslongTheSaharaabout9,600,000squarekilometersinsizeTheCaspianSea1,025metersdeepTheNile8,844.43metershighCanyoureadthenumbers?(sixthousandsixhundredandseventy-one)(ninemillionsixhundredthousand)(onethousandandtwenty-five)(eightthousandeighthundredandforty-fourpointfourthree)Step3:While-listening1bListenandcompletethesentences.1.Qomolangmais_________thananyothermountainintheworld.2.TheSaharais__________desertintheworld.3.TheCaspianSeais___________ofallthesaltlakes.4.TheNileis_________riverintheworld.higherthebiggestthedeepestthelongestStep2:Pre-listeningKeypointsQomolangmaishigherthananyothermountainintheworld．珠穆朗玛峰比世界上其他任何山都高。higherthananyothermountain意为“比其他任何山都高”，其结构为“形容词的比较级＋thananyother＋单数名词”，相当于“最高级十单数名词”或“形容词的比较级＋thantheother＋复数名词”如：Thisbookismoredifficultthananyotherbookhere.=Thisbookisthemostdifficultbookhere．=Thisbookismoredifficultthantheotherbookshere.在这里这本书最难。Step4:Post-listening1c

Usetheinformationin1btomakeconversations.Example:A:Whatisthehighestmountainintheworld?B:Qomolangma.

Task2(2a-2d)Step1:Pre-listening1.Writethefollowingnumbersandaskyourpartnertocheckit.6,300sixthousandthreehundred5,000______________________5,464_______________________________________________2.Discussthefoursentencesin2a.Thenmatchthesentenceswiththekeywords.

A.PopulationB.HistoryC.AreaD.LengthPairworkStep2:While-listening2aListenandnumberthefacts(1-4)intheorderyouhearthem.6,3005,0005,464300___

TheYangtzeRiverisabout_______kilometerslongandtheYellowRiveris_______kilometerslong.___Chinahasthebiggestpopulationintheworld.It’salotbiggerthanthepopulationoftheUS.___Chinaisover_______yearsold.IthasamuchlongerhistorythantheUS.TheUSisnoteven_______yearsold.___ChinaisalmostasbigastheUS,butitisthebiggestcountryinAsia.42132bListenagainandfillintheblanksin2awiththenumbersinthebox.6,3005,4645,000300Step3:Post-listening（注：参考资源【口语训练】TheHighestMountain开放式练习。）Talkaboutthepictureswithcomparativesandsuperlativesaccordingtotheexample.Step3:Post-listening2dRead2dandfinishthefollowingtasks.1.Choosethecorrectanswer.

What’stheconversationabout?A.Ancientemperors.B.TheMingDynasty.C.AtourtotheMingGreatWall.√2.Answerthequestions.(1)HowlongistheMingGreatWall?(2)Whydidtheancientemperorbuildthewall?It’sabout8,850kilometers.Toprotectthecountry.Step3:Post-listeningLanguagepoints1.Feelfreetoaskmeanythingontoday’sGreatWalltour.

在今天的长城游中，大家尽管问我任何问题，不要拘束。

feelfree是英语口语中一个常用表达。若有人让你feelfreetodosomething，就是让你无需拘束，只管按照自己的意愿去做某事。如：—CanIuseyourbathroom?我可以用一下你的卫生间吗？

—Yes,feelfree.可以，请随意。Step3:Post-listening2.Howlongisthewall?长城有多长？

Howlong/Howhigh/Howdeep/Howfar…?

多长/多高/多深/多远……?It’sabout…meters/kilometerslong.3.AsfarasIknow,therearenoman-madeobjectsasbigasthis.

据我所知，再没有像它这样大的人造物体了。(1)asfarasIknow是一个固定的表达方式，还可以说sofarasIknow，

意思是“据我所知”。如：AsfarasIknow,Jack’sgottwinsisters.据我所知，杰克有一对孪生姐妹。Step3:Post-listening(2)man-made是一个合成形容词，意为“人造的”。如：Man-madesatellites