Unit7SectionAGrammarFocus4c課件人教版初中英語八年級(jí)下冊(cè)

Unit7What’sthehighestmountainintheworld.?SectionA(GF-4c）1.復(fù)習(xí)本單元目標(biāo)句型,熟練掌握形容詞和副詞比較級(jí)和最高級(jí)的運(yùn)用。2.能正確運(yùn)用形容詞副詞的比較級(jí)和最高級(jí)進(jìn)行事物間的比較，能用大數(shù)描述和談?wù)撟匀坏乩砀攀?培養(yǎng)總結(jié)歸納的能力。3.能正確運(yùn)用形容詞副詞的比較級(jí)和最高級(jí)進(jìn)行事物間的比較，能用大數(shù)描述和談?wù)撟匀坏乩砀攀?培養(yǎng)總結(jié)歸納的能力。Learninggoals4.通過語法結(jié)構(gòu)的學(xué)習(xí),思考如何運(yùn)用語法結(jié)構(gòu)幫助我們提高英語的聽、說、讀、寫的能力。ReviewHowmuchdoyouknowaboutthescenery?QomolangmaNomountainintheworldis

____________

Qomolangma.Itis8848.86meters_____.ltis

____________

mountaininthe

world.Itis

______than

anyother

mountainintheworld.highhigherthehighestashighastheSaharaNodesertintheworldis____________theSahara.Itis9600000squarekilometers___________.ltis_____________desertintheworld.Itis______thananyotherdesertintheworld.insizelargerthelargestaslargeasHowmuchdoyouknowaboutthescenery?ReviewtheNileNoriverintheworldis_____________theNile.Itis6,671kilometers______.ltis____________riverintheworld.Itis______thananyotherriverintheworld.longlongerthelongestaslongasHowmuchdoyouknowaboutthescenery?ReviewtheCaspianSeaNosaltlakeintheworldis_____________theCaspianSea.Itis1025meters_____.ltis______________saltlakeintheworld.Itis________thananyothersaltlakeintheworld.deepdeeperthedeepestasdeepasHowmuchdoyouknowaboutthescenery?Review

Let’slearnWhat’sthehighestmountainintheworld?Qomolangma.HowhighisQomolangma?It’s8,844.43metershigh.It’shigherthananyothermountain.Whichisthedeepestsaltlakeintheworld?TheCaspianSeaisthedeepestofallthesaltlakes.DidyouknowthatChinaisoneoftheoldestcountriesintheworld?Yes,Idid.It’smucholderthantheUS.此句型用比較級(jí)表達(dá)最高級(jí)含義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_________來說明比較的范圍。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短語定冠詞the可省略

Let’slearn形容詞和副詞的比較級(jí)和最高級(jí)的變化規(guī)則smart→smarter→smartesttall→taller→tallesthigh→higher→highestshort→shorter→shortestslow→slower→slowestsmall→smaller→smallest1.一般在詞尾直接加-er/-est2.以字母e結(jié)尾的詞(去e)加-r/-stwide→wider→widestfine→finer→finestbrave→braver→bravestlarge→larger→largestlate→later→latestcute→cuter→cutest

Let’slearn3.重讀閉音節(jié)詞詞尾只有一個(gè)輔音字母時(shí)，先雙寫該輔音字母，再加-er/-est。4.以“輔音字母+y”結(jié)尾的雙音節(jié)詞，改“y”為“i”，再加-er/-est。thin→thinner→thinnestfat→fatter→fattestbig→bigger→biggesthot→hotter→hottestred→redder→reddestwet→wetter→wettestfunny→funnierlazy→lazierearly→earliereasy→easierhappy→happierheavy→heavier形容詞和副詞的比較級(jí)和最高級(jí)的變化規(guī)則

Let’slearn5.多音節(jié)詞和部分雙音節(jié)詞,比較級(jí)前加more，最高級(jí)前加most。特殊不規(guī)則變化beautiful→more/mostbeautifulinteresting→more/mostinterestinghard-working→more/mosthard-workingpopular→more/mostpopulargood/well→better→bestbad/badly/ill→worse→worstmany/much→more→mostlittle→less→lestold→older/elder→oldest/eldestfar→farther/further→farthest/furthest形容詞和副詞的比較級(jí)和最高級(jí)的變化規(guī)則

Let’slearn形容詞和副詞的原級(jí),比較級(jí),最高級(jí)的用法原級(jí)Ababypandaisascuteasababyelephant.Hestudiesashardashisbrother.“as+形容詞/副詞原級(jí)+as”意為“和……一樣”用于肯定句

Let’slearn形容詞和副詞的原級(jí),比較級(jí),最高級(jí)的用法原級(jí)Thismountainisnotas/sohighasthatone.Hecannotrunas/sofastas

Jack.“notas/so+形容詞/副詞原級(jí)+as”意為“和…不一樣”用于否定句

Let’slearn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)Thismountainis

muchhigherthanthatone.Mymomgotupearlierthan

methismorning.“比較級(jí)+than…”意為“比……更……一些”

Let’slearn形容詞和副詞的原級(jí),比較級(jí),最高級(jí)的用法Bajie,stopeating!

Themoreyoueat,

theheavieryouwillbe.Ijustlovethedeliciousfood.Idon'tagreewithyou!ThemoreIeat,

Thestronger

Iwillbe.The+比較級(jí)…,

The+比較級(jí)…

意為“越……，越……”比較級(jí)

Let’slearn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)Theweatherisgetting

colderandcolder.We

shouldwearmore!Youareright,Wujing.The

taskwillbemoreand

moredifficult,too.“比較級(jí)+and+比較級(jí)”或“moreandmore+形容詞/副詞原級(jí)”，表示“越來越……”

Let’slearn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(樂觀的)!Thetaskisjusta

littlemoredifficult.當(dāng)表示一方超過另一方的“程度”時(shí)，可以用much,alot,alittle,abit,even,far等來修飾形容詞比較級(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)的用法比較級(jí)Mymomistallerthanmy

dad.___________________________Whoistaller,Mymomormy

dad?Thehorsewalksfasterthantheturtle._________________________Whichanimalwalksfaster?Who/Which+……+比較級(jí),

Aor

B

?

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+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短語連用表范圍

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)“oneofthe+形容詞最高級(jí)+可數(shù)名詞復(fù)數(shù)”表示“最......之一”。Pandasareoneofthemostpopularanimals

intheworld.TheYellowRiverisoneofthelongestrivers

intheworld.

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)Who/Which+……+最高級(jí),

A,BorC?doghorsecheetah[?t?i?t?]—Whichanimalsruns_________,dogs,horsesor

cheetahs?(fast)thefastest—Thecheetahs.

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)the+序數(shù)詞

+最高級(jí)+可數(shù)名詞單數(shù)+in/of短語該結(jié)構(gòu)意為“……在……中是第幾……的……”（從第二開始）。Russiais__________countryintheworld.(large)Canadais________________countryintheworld.(large)Chinais______________countryintheworld.(large)thelargestthesecondlargestthethirdlargest

Let’slearn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)表達(dá)最高級(jí)Myfatheristallerthan______________

inmyfamily.Myfatheristhetallestoneinmyfamily.Myfatheristallerthan_______________inmyfamily.“比較級(jí)+thanany

other+可數(shù)名詞單數(shù)”=“比較級(jí)+thantheother+可數(shù)名詞復(fù)數(shù)”表示“比其他任何……都……”,表示最高級(jí)含義，可與表示最高級(jí)的句子進(jìn)行轉(zhuǎn)換。anyothermembertheothermembers

Let’slearnPracticeFillintheblankswiththecorrectformsofthewordsinthebox.4a1.TheAmazonRiverisoneofthe_________riversintheworld.It’salittle________thantheYangtzeRiver.2.Qomolangmais8,844.43meters_______.It’soneofthemost__________placesforseriousmountainclimbers.3.Nooceanintheworldisas________asthePacificOcean.4.AlthoughJapanis_______thanCanada,itis________smaller.bigmuchpopularlongoldhighlongestlongerhighpopularbigoldermuch

太平洋

n.大海，海洋Fillintheblankswiththecorrectformsofthewordsinthebox.4be.g.Tworivers:theYangtzeRiverandtheAmazonRiverTheYangtzeRiverisalmostaslongastheAmazonRiver.TheAmazonislongerthantheYangtze,buttheYangtzeisthelongestriverinChina.PracticeFillintheblankswiththecorrectformsofthewordsinthebox.4bTwocities:________________and_______________________________________________________________________________________________________________________________________________________________Twoanimals:________________and_______________________________________________________________________________________________________________________________________________________________SingaporeKualaLumpurKualaLumpurisasmodernasSingapore.SingaporeisbiggerthanKualaLumpurandhasalargerpopulationthanKualaLumper.RabbitSnailArabbitisbiggerthan