Unit7SectionAGrammarfocus-4c课件人教版英语八年级下册

SectionAGrammarfocus~4cLearningobjects（学习目标）Bytheendoftheclass,youwillbeableto1.Learnthefollowingkeywordsandphrasesocean,thePacificOcean2.Learntomakecomparisons3.Learntolovenatureandprotecttheenvironment.Andbelieveinyourselves.Let'senjoyasong.TheGreatWallis8,850kilometers__________It'sthelongestwallintheworld.long8,8501,025TheCaspianSeais1,025meters____________It'sthedeepest

of

allthesaltlakes.deep9,600,000TheSaharaisabout9,600,000squarekilometers_________.It'sthebiggestdesertintheworld.insize8,844.43highhigherhighestQomolangmais8,844.43meters________.It'sthehighestmountainintheworld.It'shigherthananyothermountainintheworld.Nomountainintheworldisashighasit.highLet'sreviewWhat’sthehighestmountainintheworld?Qomolangma.HowhighisQomolangma?It’s8,844.43metershigh.It’shigherthananyothermountain.Whichisthedeepestsaltlakeintheworld?TheCaspianSeaisthedeepestofallthesaltlakes.DidyouknowthatChinaisoneoftheoldestcountriesintheworld?Yes,Idid.It’smucholderthantheUS.Findoutthecomparativesandsuperlatives.GrammarFocusRule1：形容词最高级前必须加定冠词the，句末常跟in/of短语表示范围。Rule2：比较级结构可以表示最高级含义比较级+anyother+可数名词单数Rule3:much、alittle、alot可以修饰比较级,表示比较程度Rule1：形容词最高级前必须加定冠词the，句末常跟in/of短语表示范围。Rule2：比较级结构可以表示最高级含义比较级+anyother+可数名词单数Rule3:much、alittle、alot可以修饰比较级,表示比较程度Let'sfindandpractice1.TheAmazonRiverisoneofthe_________riversintheworld.It’salittle________thantheYangtzeRiver.2.Qomolangmais8,844.43meters_______.It’soneofthemost__________placesforseriousmountainclimbers.3.Nooceanintheworldisas________asthePacificOcean.4.AlthoughJapanis_______thanCanada,itis________smaller.bigmuchpopularlongoldhighlongestlongerhighpopularbigoldermuch

太平洋4aFillintheblankswiththecorrectformsofthewordsinthebox.alot4be.g.Tworivers:theYangtzeRiverandtheAmazonRiverWritetwocomparisonsabouttwotopics.Writetruefacts.TheYangtzeRiverisalmostaslongastheAmazonRiver.TheAmazonislongerthantheYangtze,buttheYangtzeisthelongestriverinChina.Twocities:_________and___________1.___________________________________________.2._______________________________________________________________________________.ShanghaiSydneyShanghaiisasmodernasSydneyShanghaiismuchsmallerthanSydney.\SydneyismuchlargerthanShanghaimodernarea:6340.5sqkmmodernarea:1,2368.193sqkmTwoanimals:___________and____________1._______________________________.2._______________________________________.AnelephantistallerthanapandaanelephantapandaAnelephantismuchheavierthanapandais150cmtall.weighs100kilosis350cmtall.weighs5,000kilosIt'sbettertotraveltenthousandmilesthantoreadtenthousandbooks.Whatplacewouldyouliketotravelaroundmost?Why?Let'sdiscuss.morerelaxing/exciting...thebiggestzoothehighestmountainthemostbeautifulpark...I'dliketovisitShanghai.It'soneofthemostmoderncitiesinChina.ThebeautyoftheBund(上海外滩）reallysurprisesme.Andithasoneofthemostbeautifulthemepark—ShanghaiDisneyland.(上海迪斯尼主题乐园）comparativeandsuperlativeswithadjectivesandadverbs形容词、副词的比较级和最高级Itis8,848.86metershigh.QomolangmaItis1,025metersdeep.TheCaspianSeaLeadinItisabout960,000squarekilometersinsize.TheSaharaItis6,671kilometerslong.TheNileTask1ReadandobserveWhat'sthehighestmountainintheworld?Qomolangma.DidyouknowthatChinaisoneoftheoldestcountriesintheworld?Yes,Idid.It'smucholderthantheUS.HowhighisQomolangma?It's8,848.86metershigh.It'shigherthananyothermountain.Whichisthedeepestsaltlakeintheworld?TheCaspianSeaisthedeepestofallthesaltlakes.comparative&superlativeswithadjectivesandadverbssmall-smaller-smallestdeep-deeper-deepestshort-shorter-shotestwide-wider-widestnice-nicer-nicestbrave-braver-bravestlonely-lonelier-loneliesthappy-happier-happiestheavy-heavier-heaviesthot-hotter-hottestbig-bigger-biggestthin-thinner-thinnestCanyoufindouttherules?RegularchangesRegularchangesbeautiful-morebeautiful-mostbeautifulinteresting-moreinteresting-mostinterestinglovely-morelovely-mostlovelyeasily-moreeasily-mosteasilyIrregularchanges两“好”两“坏”知“多少”一“远”一“老”各有俩good/well—better—bestbad/badly—worse—worstmany/much—more—mostlittle—less—least(修饰不可数名词)far—farther—farthest(距离远)far—further—furthest(程度深)old—elder—eldest(长幼)old—older—oldest(年龄)Task2探究比较级和最高级的用法Mikeisthetalleststudentinourclass.Mikeis____________anyotherstudentinourclass.tallerthanNostudentinourclassis___________Mike.astallas句式1：主语+be+the+最高级+in/of+范围句式2：A+be+比较级+thananyother+n.单数句式3：(not)as+原级+as+B=A+be+比较级+thantheother+n.复数Fillintheblankswiththecorrectformsofthewordsinthebox.bigmuchpopularlongoldhigh1.TheAmazonRiverisoneofthe______riversintheworld.It'salittle________thantheYangtzeRiver.2.Qomolangmais8,848.86meters_______.It'soneofthemost_______placesforseriousmountainclimbers.3.Nooceanintheworldisas________asthePacificOcean.4.AlthoughJapanis_________thanCanada,itis_________smaller.longestlongerhighpopularbigoldermuch太平洋句式4：oneofthe+最高级+可数名词复数Writetwocomparisonsabouttwotopics.Writetruefacts.Twocities:___________and__________1.___________________________________2.____________________________________________________________________Twoanimals:________and___________1._______________________________.2.

.BeijingShanghaiBeijingisasmodernasShanghai.ShanghaiisbiggerthanBeijingandhasalargerpopulationthanBeijing.atigeracatAtigerisbiggerthanacatAcatclimbsatreefasterthanatiger1.The___heis,the___hefeels.

A.busy;happy

B.busiest;happiest

C.busier;happier

D.busy;happily2.Chinais________countryintheworld.A.thethirdlargestB.thelargestthirdC.thethirdlargeD.athirdlargest3.—Whichis____seasoninBeijing，spring,autumnorwinter?—Ithinkit'sautumn.A.goodB.betterC.bestD.thebestPractice句式5：the+比较级...，the+比较级越......,就越......句式6：the+序数词+最高级+可数名词单数第......最句式7：Which/Who+谓语+最高级，A，B