Unit2第三课时sectionAGrammarFocus(课件)-鲁教版（五四制）英语七年级下册

AmazingPlantsandAnimalsSectionAGrammarfocus(3a-3c)Contentsknowhowtoformthesuperlativedegreesofadjectivesandadverbs;usesuperlativestocomparethreeormorethings;describeanimals’andplants’featureswithsuperlativeandshareyourideas.Afterthelesson,you’llbeableto:01LeadinLeadinWhatcanyoulearnfromthevideo?LeadinWhatcanyoulearnfromthevideo?Themossisoneofthe___________plantsintheworld.oldestLeadinWhatcanyoulearnfromthevideo?Theredwoodtreeisthe___________oneintheworld.tallestLeadinWhatcanyoulearnfromthevideo?Thebluewhaleisthe________andthe_________animalintheworld.tallestheaviestLeadinWhatcanyoulearnfromthevideo?Thecheetahrunsthe_________intheworld.fastestLet’slearnmoreNooneisthestrongestunderheaven.强中更有强中手。Heisthebestfighterofthethree.✅最高级（best）他是他们三个人中最厉害的比武高手。✅hardest是形容词hard的最高级形式，在“所有步骤”(大于或等于三步)内最难的一步。Thehardeststepisthefirstone.万事开头难。Let’slearnmore02GrammarPresentation

Readthesentencesandnoticethewordsinbold.Whatarethewaystoformasuperlativeadjectiveoradverb?3aTranslateallthesentences.Thebluewhaleisthelargestandtheheaviestanimalintheworld.Thebiggest

landanimalintheworldistheAfricanelephant.Thecheetahrunsthefastestamongalllandanimals.Ithinkthemostusefulplantintheworldisbamboo.Itisperhapsthemostinterestingplantintheworld.n.陆地；土地v.降落；着陆

adj.非洲的；非洲人的n.非洲人Presentation

Readthesentencesandnoticethewordsinbold.Whatarethewaystoformasuperlativeadjectiveoradverb?3aThebluewhaleisthelargestandtheheaviestanimalintheworld.ThebiggestlandanimalintheworldistheAfricanelephant.Thecheetahrunsthefastestamongalllandanimals.Ithinkthemostusefulplantintheworldisbamboo.Itisperhapsthemostinterestingplantintheworld.Whichpartsofspeech(词性)havesuperlativeforms?形容词形容词形容词副词形容词形容词Presentation形容词和副词的最高级定义：表示三者或三者以上(人或事物)的比较，其中有一个在某一方面超过其他几

个，后面可用带有in、of、among的短语等来说明比较的范围。形容词最高

级的前面一般要加定冠词the，副词最高级前的the可以省去。①Thebluewhaleisthelargestandheaviestanimalintheworld.②Inmycountry,Julyisthehottestmonthoftheyear.③Thecheetahruns(the)fastestamongalllandanimals.某一范围内的比较用in同一类事物范围内的比较用of副词最高级前的the可以省去哦Presentation

Readthesentencesandnoticethewordsinbold.Whatarethewaystoformasuperlativeadjectiveoradverb?3aThebluewhaleisthelargestandtheheaviestanimalintheworld.ThebiggestlandanimalintheworldistheAfricanelephant.Thecheetahrunsthefastestamongalllandanimals.Ithinkthemostusefulplantintheworldisbamboo.Itisperhapsthemostinterestingplantintheworld.Doyouknowtherules?音节是否是规则变化形容词、副词最高级的变化方式short形容词的变化方式，可分为规则变化与不规则变化两种：①多数单音节形容词、副词最高级在词尾加est1.规则变化shortestyoungyoungestnice②词尾为e的形容词、副词最高级词尾加stnicestlargelargest形容词、副词最高级的变化方式形容词的变化方式，可分为规则变化与不规则变化两种：1.规则变化③词尾为辅音+y的形容词、副词最高级将y改i，再加est形容词、副词最高级的变化方式形容词的变化方式，可分为规则变化与不规则变化两种：1.规则变化lazyearlylaziestearliest④短元音+单辅音的单音节形容词、副词最高级双写词尾加est形容词、副词最高级的变化方式形容词的变化方式，可分为规则变化与不规则变化两种：1.规则变化fatbigbiggestfattesthelpful⑤两个音节以上形容词、副词最高级前面加mostmosthelpfulfamousmostfamous形容词、副词最高级的变化方式形容词的变化方式，可分为规则变化与不规则变化两种：1.规则变化原级最高级good/wellbestbad/badly/illworstmany/muchmostlittleleastfarfarthest(表示距离：最远)furthest(表示程度：“最深入”)oldoldest(描述新旧或年龄)eldest(表示兄弟姐妹长幼关系)两好三坏老得快，两多一少差得远不规则变化最高级，很容易，一般词尾加est。(cheap-thecheapest)词尾若有哑音e,直接就加st。(close-theclosest)重读闭音节，单辅音字母要双写。(big-thebiggest)辅音字母加y,记得把y变为i。(friendly-thefriendliest)多音节，考考你，themost到底加哪里？(popular-themostpopular)最高级不规则变化口诀Let’schant形容词、副词最高级的基本句型◆

“主语+be+the+形容词最高级+in/of短语”意为

“……是……中最……的”。◆“主语+实义动词（+the）+副词最高级+in/of短语”意为“……是……中最……的”。◆

“主语+be+oneofthe+形容词最高级+可数名词复数+in/of短语”意为“……是……中最……的……之一”。Mymotheristhebusiestoneinmyfamily.TheYangtzeRiveristhelongestriverinChina.Tomworks(the)hardestinClass3.TianjinisoneofthebiggestcitiesinChina.形容词、副词最高级的基本句型◆

“疑问词+be+the+形容词最高级，甲、乙or丙？”用于三个或三个以上的人或事物之间的比较。

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“疑问词+助动词+主语+动词原形（+the)+副词最高级，甲、乙or丙？”◆

“主语+be+the+序数词+形容词最高级+可数名词单数+in/of短语”意为“……在……中是第几……的……”。Whoisthetallest,Tom,KateorBill?Whichcitydoyoulikebest,Beijing,ShanghaiorGuangzhou?TheYellowRiveristhesecondlongestriverinChina.YouplaytheChineseflutebetterthananyoneelseinourmusicclub.你吹中国笛子比我们音乐俱乐部里的任何人都好。(你吹的最好)Iloveplayingsportsmorethananything.我最喜欢运动。比较级表达最高级？Let’sreview!Doyourememberthesesentences?Presentation当句子中出现(more)than+比较范围（如anything,anyone,anyother...）

时，常隐含最高级含义。例如：Herunsfasterthananyoneinhisclass.ThismovieismoremovingthananyotherI’veseen.他比班上任何人都跑得快

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他是班上跑得最快的。这部电影比我看过的任何一部都感人

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这是我看过的最感人的电影。比较级表示最高级的用法PresentationPracticeCompletethesentenceswiththesuperlativeformsofthewordsinbrackets.3b1.Amongallanimals,Ilovepandasthebest.Ithinktheyare_________(cute)animalsintheworld.2.Whichdoyouthinkis__________________(beautiful),therose,thepeony,orthelotusflower?3.Lookatthatbutterfly!Ithas__________________(colourful)wings.4.Whichanimaljumps___________(high),thelion,themonkey,orthetreefrog?5.Theelephantbirdswere___________(large)and_________(heavy)birdseveronearth.Somecouldstanduptothreemetrestallandweighupto860kg.thecutestthemostbeautifulthemostcolourful(the)highestthelargestheaviest象鸟：一种已经灭绝的大型鸟类，曾生活在马达加斯加岛，体型庞大，无法飞行PracticeCompletethepassagewiththesuperlativeformsofthewordsinthebox.3cancientbeautiful

common

good

popularTheginkgotreeisoneof________________livingtreesonearth.Ginkgotreesfirstappearedover200millionyearsago.Chinesepeoplelovetheginkgo,asitisasymbolofhopeandlonglife.ManyChinesebelievethattheoldginkgotreeintheZhongnanMountainsinShaanxiProvinceis____________________.Thistreeisover1,400yearsold.Thousandsoftouristscometoseeiteachyear,especiallyinmid-October,asitis_____________timetoseeit.Theginkgotreeisoneof__________________treesin