Unit 7 第3课时 Section A Grammar Focus-4c【基础深耕】八年级英语下册高效课堂（人教版）

第3课时SectionAGrammarFocus-4c初中英语/人教版/八年级下册

Unit7What'sthehighestmountainintheworld?01Review05Summary03Presentation02Grammar06Homework04Exercises01020304语言能力思维品质文化意识学习能力学习目标词汇:ocean,thePacificOcean；

鼓励学生仔细观察并善于发现总结规律。通过本节课学习,提高同学们对于保护濒危野生动物的意识。复习并掌握形容词和副词三个等级原级；比较级和最高级的用法；ReviewPart01Howmuchdoyouknowaboutthescenery?QomolangmaNomountainintheworldis

____________

Qomolangma.Itis8848.86meters_____.ltis

____________

mountaininthe

world.Itis

______than

anyother

mountainintheworld.highhigherthehighestashighastheSaharaNodesertintheworldis____________theSahara.Itis9600000squarekilometers___________.ltis_____________desertintheworld.Itis______thananyotherdesertintheworld.insizelargerthelargestaslargeasHowmuchdoyouknowaboutthescenery?theNileNoriverintheworldis_____________theNile.Itis6,671kilometers______.ltis____________riverintheworld.Itis______thananyotherriverintheworld.longlongerthelongestaslongasHowmuchdoyouknowaboutthescenery?theCaspianSeaNosaltlakeintheworldis_____________theCaspianSea.Itis1025meters_____.ltis______________saltlakeintheworld.Itis________thananyothersaltlakeintheworld.deepdeeperthedeepestasdeepasHowmuchdoyouknowaboutthescenery?Grammar

Part02GrammarFocusWhatdidyoufindout?What'sthehighestmountainintheworld?Qomolangma.HowhighisQomolangma?It's8,844.43metershigh.It'shigherthananyothermountain.如何询问和表达物体的长度、宽度、高度、深度等。如何询问物体的长度、宽度、高度、深度等？句型：How+long(wide,high,deep,big,heavy…)+谓语+主语+其他？Howwideisthemirror?那面镜子有多宽？如何表达物体的长度、宽度、高度、深度等呢？观察并总结:It's8,844.43metershigh.______+______+___________(long,high,wide,deep…)构成的;基数词度量词长\高\宽\深主+be+物体的长、宽、高、深的表达法：基数词+度量词（meters，kilometers,squarekilometers）+形容词（long,wide,high,deep等）。当基数词大于1时，度量词用复数形式。e.g.Thebasketballplayeris2meterstall.Theriverisabout2meterswide/deep.Themountainisabout2thousandmetershigh.1．TheYangtzeRiverisabout6,397kilometres________.A．tall B．high C．long D．wide2．Thenewbridgeinourvillageis_________.A．666meterhigh B．666highmeters C．666longmeters D．666meterslong3．—What’sthe________ofthebuilding?—It’s236metres________.A．high;high B．height;height C．high;height D．height;high4．这张桌子有5米长。Thedeskis

.5．这块岩石长5米，宽2米。Therockis

and2meterswide.巩固练习√√√fivemeterslong5meterslongGrammarFocusWhat’sthehighestmountainintheworld?Qormolangma.HowhighisQomolangma?It’s8,844.43metershigh.It’shigherthananyothermountain.Whichisthedeepestsaltlakeintheworld?TheCaspianSeaisthedeepestofallthesaltlakes.DidyouknowthatChinaisoneoftheoldestcountriesintheworld?Yes,Idid.It’smucholderthantheUS.Findthecomparativesandsuperlatives.此句型用比较级表达最高级含义形容词和副词的原级,比较级,最高级原级Positiveform比较级Comparativeform最高级Superlativeform没有比较含义,“……”两者间比较,“更……”三者及三者以上比较,“最……”注意：某些形容词和副词只用原级，如：perfect，excellent，dead等。一、形容词、副词比较级和最高级变化规则①直接加-er或-esttall—_____—______

long—______—______②以不发音的字母e结尾的单词直接加-r或-st③以“辅音字母+y”结尾,把y变为i,再加-er或-estnice—______—______heavy—________—________tallertallestlongerlongestnicernicestheavierheaviest④辅元辅，且重读双写辅音字母再加-er或-est⑤部分双音节词和多音节词

比较级：more+多音节形容词副词原级

最高级：most+多音节形容词副词原级big—_______—_______slowly—___________—___________beautiful—______________—______________biggerbiggestmoreslowlymostslowlymorebeautifulmostbeautiful巧记：大big红red胖fat瘦thin湿wet热hot悲sad原级比较级最高级good\wellbetterbestbad\badlyworseworstmany\muchmoremostlittlelessleastoldolder\elderoldest\oldestfarfarther(更远)further(进一步的)farthest\furthest二、形容词、副词的比较级和最高级的不规则变化Lucy

doesn't

study

______

______

____

Lily.露西不如莉莉学习努力。Eric

is

____

____

____

Jerry.埃里克和杰里一样高。as/sohardasastallas三、形容词和副词的原级的用法当两者进行比较时，若比较双方在某方面程度相同，常用“as+原级+as”型结构，否定形式为“not

as/so+原级+as”。常用于修饰原级的单词或短语：very、too、quite、so等1．Thisroomisas________asthatone.A．bigger B．longer C．clearly D．clean2．Danielis________hisbrother.Theyareboth1.76meterstall.A．tallerthan B．astallas C．sotallas3．—Thisfilmis________thatone.—Iagree,soIlikebothofthem.A．asinterestingas B．notasinterestingasC．moreinterestingthan D．lessinterestingthan4．—Ourclassroomis______clean______yesterday.—Sorry,I’llcleanitrightaway.A．as;as B．so;as C．notso;as5．—Mum,couldyoubuymeacarlikethis?—Certainly,wecanbuy_______onelikethis,but_______this.A．aworse,asgoodas B．abetter,betterthanC．moreimportant,notasgoodas D．acheaper,asgoodas巩固练习√√√√√Our

hometown

is

becoming

______

and

______

_________.我们的家乡变得越来越美了。higherthancoldercoldermoremorebeautiful四、形容词和副词的比较级的用法（1）“A+谓语动词+比较级+than+B”表示“A比B更……”。The

Himalayas

are

_______

______

the

Alps.

（2）“比较级+and+比较级”表示“越来越……”；多音节词和部分双音节词用“more

and

more+原级”。It's

getting

_______

and

_______.天气变得越来越冷了。Thebusierthehappier（6）常用于修饰比较级的单词或短语：a

little、a

lot、a

bit、much、even、far等（3）“The+比较级...,

the+比较级...”意为“越……，就越……”。___________

he

gets,

____

________

he

is.他越忙碌，就越高兴。（4）“Which/Who（+of

the

two...）+谓语动词单数形式+比较级，

A

or

B?”意为“两者中哪一个/谁更……”。Which

of

the

two

movies

is

more

interesting,

this

one

or

that

one?

两部电影中哪一部更有趣，这一部还是那一部？（5）“the+比较级+of

the

two...”意为“两者中更……的”。He

is

the

thinner

of

the

two

boys.他是两个男孩中更瘦的一个。1．Ourcountryisgetting________.Manyforeignerswouldliketovisitit.A．morebeautifulandmorebeautiful B．morebeautifulandbeautifulC．moreandmorebeautiful D．beautifulandbeautiful2．—Thedoctortellsmenottoeattoomuchjunkfood,butIfindithard.—Thedoctorisright.________junkfoodyoueat,________youwillbe.A．Themore;thehealthier B．Themost;thehealthiest C．Theless;thehealthier D．Theleast;thehealthiest3．—Whichis________ofthetwins,LucyorLily?—It’shardtosay.Bothofthemaregoodattheirlessons.A．thecleverer B．cleverer C．cleverest D．thecleverest4．—WhatdoyouthinkofthenovelTheThree-bodyProblem?—I’veneverread________onebefore.Itisfullofimagination（想象力）.A．thebest B．theworst C．aworse D．abetter5．Thisbookis________interesting,butthatoneis________moreinteresting.A．far;very B．far;much C．pretty;very D．pretty;much√√√√√She

runs

fastest

in

our

class.她在我们班里跑得最快。Tom

is

____

______

______________

of

us

all.

汤姆是我们当中工作最努力的。themosthard-working五、形容词和副词的最高级的用法（1）“（the+）最高级+of/among/in...”意为“（三者及以上）最……的”；形容词最高级前加the,副词最高级前可不加。【注意】

介词of/among后接同句子的主语属于同一个概念范畴的名词或代词；而介词in后常接表示组织、团体之类的集体名词。（2）“Which/Who+谓语动词+（the+）最高级，

A,B

or

C?”

意为“三者中哪一个/谁最……”。Which

is

____

________,

the

sun,

the

earth

or

the

moon?太阳、地球和月球，这三者中哪一个最大？thebiggest（3）“one

of

the+形容词最高级+复数可数名词”意为“最……的……之一”。One

of

____

______

__________

languages

is

English.最重要的语言之一是英语。themostimportant（4）“the+序数词+形容词最高级+单数可数名词”意为“第几最……”。The

Yellow

River

is

____

________

________

river

in

China.黄河是中国的第二长河。thesecondlongest巩固练习1．Qomolangmaisthe_________mountainintheworld.A．high B．higher C．morehigher D．highest2．Londonisoneofthe________famous________intheworld.A．/;city B．most;cities C．more;cities D．most;city√√3．—Hainanisaverylargeisland.—Yes,it’sthesecond________islandinChina.A．large B．larger C．largest D．thelarger4．Whichcityhas________population,Beijing,WuhanorShanghai?A．larger B．thelargest C．more D．themost5．Ofalltheperformers,Ithinkheisthe________one.A．success B．mostsuccessfulC．moresuccessful D．successful6．—Whoruns_________?Jim,TomorSam?—Tomdoes,ofcourse.A．fast B．faster C．mostfast D．fastest7．—Tom,IhearthatBobruns________inyourclass.Isthattrue?—No.Infact,hedoesn’trunas________asJohn.A．fastest;faster B．fastest;fast C．faster;fastest D．faster;fast√√√√√（2）“比较级+than

any

other+名词单数形式”或“比较级+than

the

other+可数名词复数形式”可与“（the+）最高级+of/among/in...转换”。The

movie

is

the

most

interesting

of

all.这部电影是所有电影中最有趣的。=The

movie

is

more

interesting

than

_____

______

movie.=The

movie

is

more

interesting

than

____

______

movies.anyothertheother六、原级、比较级与最高级之间的转换（1）as...as结构和最高级的转换No

ocean

in

the

world

is

as

big

as

the

Pacific

Ocean.

太平洋是世界上最大的海洋。=The

Pacific

Ocean

is

____

________

ocean

in

the

world.thebiggest1．HeisnotastallasMike.(改为同义句)Mikeis

him.2．Thisisthehighestmountaininthecountry.(改为同义句)Nomountainis

thisoneinthecountry.3．Thisriverislongerthantheotherriversinthecountry.（改为同义句）Thisriveris

inthecountry.4．NobodyelseisclevererthanDanielinhisclass.(同义句改写)Danielis

studentinhisclass.5．ItisthemostbeautifulcityinChina.（改为同义句）Itis

than

inChina.巩固练习tallerthanashighasthelongestthecleverestmorebeautifulanyothercityPresentationPart03Fillintheblankswiththecorrectformsofthewordsinthebox.1.TheAmazonRiverisoneofthe

riversintheworld.It’salittle_______thantheYangtzeRiver.2.Qomolangmais8,844.43meters_____. It’soneofthemost________placesforseriousmountainclimbers.3.Nooceanintheworldisas_____as

thePacificOcean.4.AlthoughJapanis_______thanCanada,itis_______smaller.longestlongerhighpopularbigoldermuch4abigmuchpopularlongoldhigh4bWritetwocomparisonsabouttwotopics.Writetruefacts.e.g.Tworivers:________________and______________________________________________________________________________________________________________________________________________________________theYangtzeRivertheAmazonRiverTheAmazonislongerthantheYangtze,buttheYangtzeisthelongestriverinChina.

TheYangtzeRiverisalmostaslongastheAmazonRiver.Twocities:andJiNanBeiJingpopulationofJiNanPopulationofBeiJing8,700,00021,540,000ThepopulationofJinanisnot_____________thatofBeijing.ThepopulationofBeijingis____________thanthatofJinan,aslargeasmuchlargeTwocities:________________and_______________________________________________________________________________________________________________________________________________________________ShanghaiSydneyShanghaiisnotasbigasSydney.SydneyismuchbiggerthanShanghai.Sydneyisalmost2timesasbigasShanghai.Area:12368sqkmArea:6340sqkm4cWritefivequestionsaboutChengduusingcomparisons.Thendiscussyourquestionsingroups.1._________________________________2._________________________________3._________________________________4._________________________________5._________________________________WhatisthehighestbuildinginChengdu??WhatisthelargestsinglebuidinginChengdu?WhichisthebusiestroadinChengdu?WhatisthemostpopularstreetinChengdu?WhatisthemostdeliciousfoodinChengdu?Exercises

Part041.Mybrotherhas____booksthanI.A.muchB.moreC.manyD.most2.Themoreyousmile,the_____youwillfeel.A.happyB.happierC.happilyD.morehappily3.Iknowyouareshorterthanyourbrothers，butyourun_________.A.morefaster B.fastestC.morefast D.fast4.MrSmiththoughttheCenturyParkwasthesecond_____inShanghai.A.largeB.largerC.largestD.verylarge5.

IthinkEnglishisas____asmaths.

A.important

B.moreimportant

C.mostimportant

D.importanter一、单项选择BBBCA1.Chinais_______(large)thananyothercountryinAsia.2.Ourcityisbecomingmoreandmore_________(beautiful).3.The_____(much)wedofortheoldpeople,the_______(happy)we’llbe.4.Mybrotheristhe______(tall)ofthetwoboysinthepicture.5.Herbedroomistwice_________(big)thanmine.6.Mrs.Smithlooksmuch__________(young)withhernewhairstyle.7.Chinaisoneof__________________(ancient)countriesintheworld.8.TheYellowRiveristhesecond________(long)riverinChina.二、用括号中所给单词的适当形式填空tallerlargerbeautifulmorehappierlongestbiggeryoungerthemostancient二、根据汉语意思完成句子,每空一词。登陆火星比我们想象中要难得多，但我们做到了LandingonMarswas

thanweimagined,butwemadeit.2.袁隆平是最伟大的科学家之一，他对世界做出了重要的贡献。YuanLongping,oneof

,madeimportantcontributionstotheworld.3.我认为四月是泰国最热的月份。IbelievethatAprilis

inThailand.4.汤姆是我们班年龄第二大的学生。Tomis

studentinourclass.5.这栋房子的起居室比其他任何房间都大。Thelivingroomisbigger

roominthishouse.muchmoredifficultthegreatestscientiststhehottestmonththananyotherthesecondoldestSummaryPa