Unit7SectionAGrammarFocus3c課件人教版英語(yǔ)八年級(jí)下冊(cè)

Unit7What’sthehighestmountainintheworld?SectionAGF-4c文化意識(shí)語(yǔ)言能力思維品質(zhì)學(xué)習(xí)能力Learningobjectives1.對(duì)詢(xún)問(wèn)高度、長(zhǎng)度、寬度、深度的疑問(wèn)句進(jìn)行歸納總結(jié)，掌握其規(guī)則；2.通過(guò)不同方式的練習(xí)，熟練掌握本單元的比較級(jí)以及最高級(jí)的語(yǔ)法知識(shí)。掌握并能靈活運(yùn)用本單元的重點(diǎn)詞匯以及相關(guān)短語(yǔ)，能從更多典型的句子中掌握形容詞、副詞比較級(jí)、最高級(jí)更豐富的用法。鼓勵(lì)學(xué)生仔細(xì)觀察并善于發(fā)現(xiàn)總結(jié)規(guī)律。培養(yǎng)學(xué)生熱愛(ài)大自然的思想。Canyoutranslatethefollowingsentences?長(zhǎng)江大約長(zhǎng)6,300千米。TheYangtzeRiverisabout6,300kilometerslong.黃河長(zhǎng)5,464千米。TheYellowRiveris5,464kilometerslong.Canyoutranslatethefollowingsentences?明朝的長(zhǎng)城大約有8,850千米長(zhǎng)。TheGreatWallinMingdynastyisabout8,850kilometerslong.珠穆朗瑪峰高8,848.86米，所以攀登起來(lái)很危險(xiǎn)。Qomolangmais8,848.86metershighandsoisverydangeroustoclimb.長(zhǎng)度、寬度、高度、深度的表示法老虎路有200米長(zhǎng)，而且濕度很重。TigerPathis200meterslongandhasahighhumidity.這座山大概兩千米高。Themountainisabouttwothousandmetershigh.那面鏡子有兩米長(zhǎng)。Themirroristwometerslong.*長(zhǎng)度、寬度、高度、深度的表示法，有一個(gè)專(zhuān)門(mén)的結(jié)構(gòu)：“基數(shù)詞+單位詞+形容詞”1.Mikeisthetalleststudentinourclass.2.Mikeistallerthananyother

studentinourclass.3.Mikeistallerthantheother

studentsinourclass.4.NostudentinourclassisastallasMike.5.Mikeismuchtallerthan...6....isalmostastallasMike.Heisoneofthetalleststudentsinourclass.Comparison-SuperlativeWhat’sthehighestmountainintheworld?Qomolangma.HowhighisQomolangma?It’s8,848.86metershigh.It’shigherthananyothermountain.Whichisthedeepestsaltlakeintheworld?TheCaspianSeaisthedeepestofallthesaltlakes.DidyouknowthatChinais

oneoftheoldestcountriesintheworld?Yes,Idid.It’smucholderthantheUS.GrammarUnderlinethecomparativesandsuperlatives.形容詞副詞比較級(jí)和最高級(jí)Thebeeisflyingfast.Thebirdisflyingfaster.Theplaneisflyingthefastest.WarmingUpCanyoudescribethefollowingpictures?LiLei’sboxisheavy.HanMeimei’sboxis

heavier

thanLiLei’s.Jim’sboxistheheaviest

ofall.一、形容詞、副詞的比較級(jí)和最高級(jí)概述：

英語(yǔ)中的形容詞和副詞常用三種形式來(lái)表達(dá)事物的等級(jí)差別，即原級(jí)、比較級(jí)和最高級(jí)。

比較級(jí)主要用于兩者之間作比較。

最高級(jí)主要用于三者或三者以上進(jìn)行比較。形容詞和副詞的原級(jí),比較級(jí),最高級(jí)原級(jí)Positiveform比較級(jí)Comparativeform最高級(jí)Superlativeform沒(méi)有比較含義,“……”兩者間比較,“更……”三者及三者以上比較,“最……”注意：某些形容詞和副詞只用原級(jí)，如：perfect，excellent，dead等。

Let’slearn形容詞和副詞的原級(jí),比較級(jí),最高級(jí)大多數(shù)形容詞和副詞有三個(gè)等級(jí)：_____________________。比較級(jí)表示_________，用于__________的比較，說(shuō)明“前者比后者更……”。形容詞、副詞的最高級(jí)用于_____________的人或事物之間的比較，常用_________來(lái)說(shuō)明比較的范圍。形容詞最高級(jí)前要加_________，副詞最高級(jí)前的the_______。原級(jí)、比較級(jí)和最高級(jí)“更……”兩者之間三個(gè)或三個(gè)以上of/in短語(yǔ)定冠詞the可省略

Let’slearn規(guī)則變化①直接加-er或-esttall—_____—______

long—______—______②以不發(fā)音的字母e結(jié)尾的單詞直接加-r或-st③以“輔音字母+y”結(jié)尾，把y變?yōu)閕，再加-er或-estnice—______—______heavy—________—________tallertallestlongerlongestnicernicestheavierheaviest④重讀閉音節(jié)（末尾只有一個(gè)輔音字母）

雙寫(xiě)輔音字母再加-er或-est⑤部分雙音節(jié)詞和多音節(jié)詞

分別在原級(jí)前加more構(gòu)成比較級(jí)和most構(gòu)成最高級(jí)big—_______—_______slowly—___________—___________beautiful—______________—______________biggerbiggestmoreslowlymostslowlymorebeautifulmostbeautiful形容詞和副詞的原級(jí),比較級(jí),最高級(jí)的用法比較級(jí)Thetaskismuchmoredifficult.Thetaskisalotmoredifficult.Thetaskisfarmoredifficult.Beoptimistic(樂(lè)觀的)!Thetaskisjusta

littlemoredifficult.當(dāng)表示一方超過(guò)另一方的“程度”時(shí)，可以用much,alot,alittle,abit,even,far等來(lái)修飾形容詞比較級(jí)。注意：比較級(jí)不能用very,so,too等修飾。

Let’slearn形容詞和副詞的原級(jí),比較級(jí),最高級(jí)的用法最高級(jí)主+be+形容詞最高級(jí)+名詞+范圍。主+動(dòng)詞或動(dòng)詞短語(yǔ)+副詞最高級(jí)(the可省略)+范圍。TheYangtzeRiveristhelongestriverinChina.Shejumps(the)farthestofthethree.最高級(jí)常與介詞in或of短語(yǔ)連用表范圍

Let’slearn原級(jí)比較級(jí)最高級(jí)good/wellbetterbestbadworseworstmany/muchmoremostlittlelessleastoldolder/elderoldest/eldestfarfarther(更遠(yuǎn))/further(進(jìn)一步的)farthest/furthest不規(guī)則變化（1）在形容詞最高級(jí)前通常用the，在副詞最高

級(jí)前可用the，也可省略。（2）比較級(jí)前常用的修飾語(yǔ)有

far，even，alot，

abit，much等。使用比較等級(jí)應(yīng)注意的幾點(diǎn)：不可用very修飾③表示在三者或三者以上的人或物中進(jìn)行選擇時(shí)，用句型：Which/Who+be/動(dòng)詞(+the)+最高級(jí),A,BorC?e.g.Whichsubjectdoyoulikebest,English,ChineseorMath?你最喜歡哪一門(mén)課程，英語(yǔ)、語(yǔ)文還是數(shù)學(xué)？④

A+be+the+序數(shù)詞+形容詞最高級(jí)+名詞單數(shù)+范圍，表示“第幾最……“。e.g.TheYellowRiveristhesecondlongestinChina.黃河是中國(guó)的第二大河。⑤

比較級(jí)形式表示最高級(jí)：比任何一個(gè)都……，最……比較級(jí)+than+anyother+單數(shù)可數(shù)名詞比較級(jí)+than+theother+名詞復(fù)數(shù)比較級(jí)+than+anyoftheother+名詞復(fù)數(shù)翻譯：

湯姆比他們班任何一個(gè)學(xué)生都聰明。Tomisclevererthananyotherstudentinhisclass.Tomisclevererthantheotherstudentsinhisclass.Tomisclevererthananyoftheotherstudentsinhisclass。SelfCheckAdjectivesComparativesSuperlativeshighdangerouslongpopular1Completethechart.

highermoredangerouslongermorepopularhighestmostdangerouslongestmostpopular3Circlethecorrectwordand/orfillintheblankwiththecorrectfromofthewordinbracketsforeachsentence.1.Anelephantweighs(few/many)timesmorethanadog.2.Anadultpandacaneat(much/alittle)morethanacat.3.Canadaisa(little/lot)less__________(crowded)thanChina.4.Atigeris(much/alittle)_________(strong)thanaman.crowdedstronger(1)數(shù)的讀法.將每三位數(shù)看做一個(gè)單位，自右向左依次為thousand千，million百萬(wàn)，billion十億。每個(gè)單位按百、十、個(gè)位向右讀。其中百位到十位之間要加入and。(2)表示確切的數(shù)量直接用基數(shù)詞Twohundredpeoplewerepresentatthemeeting.Grammar數(shù)的讀法與運(yùn)用(3)表示不確切的數(shù)量用hundred、thousand、million、

billion等復(fù)數(shù)再搭配介詞of。Hundredsofstudentsareplayingontheplayground.數(shù)的讀法與運(yùn)用()1.—Whatis_____animalonland?

—Itistheelephant.larger

B.thelargest

C.smaller

D.thesmallest()2.Thisfilmis_____forustoseethanthatone.A.muchinteresting

B.muchmoreinterestingC.interesting

D.moremuchinteresting()3.—Manyboystudentsthinkmathsis_____English.—Iagree.I'mweakinEnglish.A.muchdifficultthan

B.sodifficultasC.lessdifficultthan

D.moredifficultthanBBC()4.Wehavea_____holidayeveryNationalDay.A.7day

B.7-day

C.7-days

D.7days()5.Canadais_____countryintheworld.A.thesecondlargest

B.secondlargestC.thesecondlarge

D.secondlarge()6.Fishingisoneof_____activitiesamongthemiddle-agedpeople.A.popular

B.morepopular

C.mostpopular

D.themostpopularBAD4aFillintheblankswiththecorrectformsofthewordsinthebox.bigmuchpopularlongoldhigh1.TheAmazonRiverisoneofthe_______riversintheworld.It’salittle_______thantheYangtzeRiver.2.Qomolangmais8,848.86meters_____.

It’soneofthemost________placesforseriousmountainclimbers.3.Nooceanintheworldisas____asthePacificOcean.4.AlthoughJapanis_____thanCanada,itis_____smaller.longestlongerhighpopularbigoldermuchMakecomparisonsaccordingtothetable.the

Nile

RivertheAmazonRivertheYangtzeRivertheYellowRiver6,671km6,480km6,300km5,464km?TheNileRiveristhelongestriverintheworld.?TheAmazonRiverisoneofthelongestriversintheworld.?TheAmazonRiverisalittlelongerthantheYangtzeRiver.?TheNileRiverismuchlongerthantheYellowRiver.Writetwocomparisonsabouttwotopics.Writetruefacts.Twocities:________________and_______________________________________________________________________________________________________________________________________________________________ShanghaiSydneyShanghaiisnotasbigasSydney.SydneyismuchbiggerthanShanghai.Sydneyisalmost2timesasbigasShanghai.Area:12368sqkmArea:6340sqkmPractice4bTwocities:_________

and___________1.___________________________________________.2._______________________________________________________________________________.BeijingShanghaiBeijinghasfewerpopulationthanShanghai.BeijingismuchbiggerthanShanghai.Beijingisalmost3timesasbigasShanghaiBeijing*hasapopulationof21,729,000*anareaof16,410km2Shanghai*hasapopulationof24,197,000*anareaof6,340km2Twoanimals:_____________and_________1._______________________________.2.__________________________________________________________________________.anelephantAnelephantisalottallerthanapanda.Anelephantweighsmuchmorethanapanda,andeatsmoreapandaElephant*is350cmtall*weighs5,000kilos*eats150kilosoffoodadayPanda*is150cmtall*weighs100kilos*eats10kilosoffoodaday4c.Writefivequestionsusingcomparisons.Thenaskyourpartneryourquestions.1.__________________________________________2.__________________________________________3.__________________________________________4.__________________________________________5.__________________________________________Whatisthehighestbuildinginourcity?Whatisthebusiestsubwaystationinourcity?Whatisthelargestshoppingmallinourcity?Whichisthebiggestparkinourcity?Whichisthelongestroadinourcity?ProductionYourTime~Ourschoolisgoingonaschooltripinthecity.Workingroupsoffourtotalkaboutwhichplaceisthebestforourschooltrip?Example:Wethink______isthebestplaceforustogoonaschooltrip.Ofalltheplaces,itisthe________.Andwecanalso______.Soweallthinkitisagoodideatovisit________________.v.保護(hù)；防護(hù)作及物動(dòng)詞,protect…against/from…“保護(hù)…免于…”。其名詞protection作不可數(shù)名詞，意為“保護(hù)；防衛(wèi)”。1.Themainreasonwastoprotecttheirpartofthecountry.考點(diǎn)

protectLanguagepointsHewearssunglassestoprotecthiseyesagainst/fromthestrongsunlight.It’sparents’dutytoprovideprotectionfortheirchildren.oneofthe+形容詞的最高級(jí)+名詞復(fù)數(shù)意為“最……之一”,當(dāng)它作主語(yǔ)時(shí),后面的謂語(yǔ)動(dòng)詞要用單數(shù)。2.TheAmazonRiverisoneofthelongestriversintheworld.It’salittleisalittlelongerthantheYangtzeRiver.考點(diǎn)

oneofthe...1LanguagepointsHeisoneofthetalleststudentsinourclass.Shanghaiisoneofthebiggestcitiesintheworld.Sheisoneofthewinners.1.Mybrotherhas____booksthanI.A.muchB.moreC.manyD.most2.Themoreyousmi