Unit7SectionAGrammar4c課件人教版八年級英語下冊

What’sthehighestmountainintheworld?————————————————————————————————SectionA(GF-4C)What’sthehighestmountainintheworld?Qomolangma.HowhighisQomolangma?It’s8,844.43metershigh.It’shigherthananyothermountain.Whichisthedeepestsaltlakeintheworld?TheCaspianSeaisthedeepestofallthesaltlakes.DidyouknowthatChinais

oneoftheoldestcountriesintheworld?Yes,Idid.It’smucholderthantheUS.GrammarFocusFillintheblanksaccordingtothetext.1.—世界上最高的山峰是什么？—珠穆朗瑪峰?！猈hat’s___________mountainintheworld?—Qomolangma.thehighest2.—珠穆朗瑪峰有多高？—它高8,848.86米。它比別的山都高?！狧owhighisQomolangma?—It’s___________________.It’s______thananyothermountain.8,848.86metershighhigher3.—世界上最深的咸水湖是哪個？—里海是世界上最深的咸水湖?！猈hichis___________saltlakeintheworld?—TheCaspianSeais__________________________.4.—你知道中國是世界上最古老的國家之一嗎？—我知道。中國比美國古老得多?！狣idyouknowthatChinais______________countriesintheworld?—Yes,Idid.It’s__________thantheUS.oneoftheoldestthedeepestthedeepestofallthesaltlakesmucholderGrammar回顧形容詞和副詞通常有三種級別：原級（Positiveform）：沒有比較含義，“……”；比較級（Comparativeform）：兩者間比較，“更……”；最高級（Superlativeform）：三者及三者以上比較，“最……”。注意：某些形容詞和副詞只用原級，如：perfect，excellent，dead等。1．形容詞比較級的句型結(jié)構(gòu)(1)形容詞的比較級＋than＋比較對象。前后相比較的兩個事物一定要屬于同類，而且作比較時，一定要避免自身與自身相比。表示一個范圍內(nèi)兩事物比較，用“比較級＋than＋anyother＋單數(shù)名詞”。如：Heismorecarefulthananyotherstudentinhisclass.

他比班上任何一個學(xué)生都認(rèn)真。(2)as…as…意為“與……一樣……”，其否定形式為“notso/as…as…”，意為“不及；不與……一樣……”。它們也是一種表達(dá)比較的形式，注意as與as之間要用形容詞或副詞的原級。2．比較級的特殊句型the＋比較級，the＋比較級“越……越……”Thebusierweare，theunhappierwewillbe.比較級＋and＋比較級“越來越……”O(jiān)urcountryisgettingstrongerandstronger.比較級前可以用much，alittle，abit，even等修飾。如：Theshoesarealittlebiggerforme.

對我來說，這雙鞋有點兒大?！咀⒁狻慨?dāng)比較級后有ofthetwo…之類的短語時，比較級前要加定冠詞the。在選擇疑問句中兩者進(jìn)行比較，常用句型：Which/When/Who＋be＋形容詞比較級，AorB?3．形容詞最高級的句型結(jié)構(gòu)4．最高級的特殊句型疑問詞＋be＋the＋最高級Whichisthebiggest，thesun，themoonortheearth？the＋序數(shù)詞＋最高級“第幾……”TheYellowRiveristhesecondlongestriverinChina.oneofthe＋最高級＋復(fù)數(shù)名詞“最……之一”Shanghaiisoneofthebiggestcitiesintheworld.“主語＋be＋the＋形容詞最高級＋in/of＋范圍”表示“在某范圍內(nèi)最……”。(1)形容詞最高級前通常要加定冠詞the。但前面若有物主代詞、指示代詞或名詞所有格等修飾時，不能用定冠詞the?！咀⒁狻?2)形容詞最高級常與介詞in或of引導(dǎo)的短語連用，與in連用意為“在……內(nèi)”，表示“在某范圍內(nèi)”，不一定是同類；與of連用表示“屬性”，介詞后的名詞或代詞與句中的主語是同一類人或物，意為“在某一類中”。1)Qomolangmais______thananyother

mountainintheworld.2)TheSaharais__________desertintheworld.3)TheCaspianSeais__________ofallthesaltlakes.4)TheNileis___________riverintheworld.5)What’s__________mountainintheworld?Fillintheblanks.higherthebiggestthedeepestthelongestthehighest6)Chinahas____________populationintheworld.7)It’salot________thanthepopulationoftheUS.8)Chinaisover5000yearsold.Ithasa_____________historythantheUS.9)Chinaisalmostas______astheUS,anditisthe_________countryinAsia.thebiggestbiggermuchlonger

bigbiggest10)—DidyouknowthatChinaisoneof__________countriesintheworld?

—Yes,Idid.It’s______________thanmycountry.11)Thismakesit__________wallintheworld.12)It’s______________part.13)Oneoftheworld’s______________sports

ismountainclimbing,andoneof

_______________placesforthisisthe

Himalayas.

theoldestmucholderthelongestthemostfamousmostdangerousthemostpopularhundredCanyoureadtheselargenumbers?26742,674twothousandsixhundredandseventy-four1.從數(shù)字右端向左數(shù)，每三位數(shù)加一個逗號；2.第一個逗號前的數(shù)為thousand（千）；3.讀的時候通常在hundred后加and。thousandand大數(shù)字的表達(dá)與讀法1835708918,357,089millionandeighteenmillion,threehundredandfifty-seventhousand,andeighty-ninethousand1.從數(shù)字右端向左數(shù)，每三位數(shù)加一個逗號；2.第一個逗號前的數(shù)為thousand（千）；第二個逗號前的數(shù)為million（百萬）；第三個逗號前的數(shù)為billion（十億）3.讀的時候通常在hundred后加and，如果百位數(shù)為0，則在thousand后加and。1.英語沒有“萬”這個單位，要表示“萬”須

借用thousand，如“一萬”用“十個千

（tenthousand）”

表示，“十萬”用“百個千

（onehundredthousand）”表示。2.在hundred后通常加上連詞and。若讀數(shù)中百位

數(shù)為0，則在thousand后加and。注意：5,764fivethousand,sevenhundredandsixty-four88,649eighty-eightthousand,sixhundredandforty-nine265,468twohundredandsixty-fivethousand,fourhundredandsixty-eight19,357,095nineteenmillion,threehundredandfifty-seventhousand,andninety-five4aFillintheblankswiththecorrectformsofthewordsinthebox.1.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Lookatthetablebelowandmakesentencesbyusingcomparativesandsuperlatives.theNileRiver6,671kmtheAmazonRiver6,480kmtheYangtzeRiver6,300kmtheYellowRiver5,464kmTheNileRiveristhelongestriverintheworld.TheAmazonRiverisoneofthelongestriverintheworld.TheAmazonRiverisalittlelongerthantheYangtzeRiver.TheNileRiverismuchlongerthantheYangtzeRiver.4b.Writetwocomparisonsabouttwotopics.Writetruefacts.e.g.Tworivers:________________and__________________________________________________________________________________________________________________________________________________theYangtzeRivertheAmazonRiverTheYangtzeRiverisalmostaslongastheAmazonRiver.TheAmazonislongerthantheYangtze,buttheYangtzeisthelongestriverinChina.4b.Writetwocomparisonsabouttwotopics.Writetruefacts.Twocities:___________and_______________1.___________________________________2.____________________________________________________________________________Twoanimals:___________and_________1.___________________________________2.________________________________________________________________________SingaporeKualaLumpurKualaLumpurisasmodernasSingapore.SingaporeisbiggerthanKualaLumpurandhasalargerpopulationthanKualaLumpur.MonkeyDogAdogisbiggerthanamonkey.Amonkeyissmallerthanadog,butitclimbsatreefasterthanadog.4C

Writefivequestionsusingcomparisons.Thenaskyourpartneryourquestions.1._______________________________________2._______________________________________3._______________________________________4._______________________________________5._______________________________________Whatisthelargestshoppingmallinourcity?Whichisthebiggestparkinourcity?Whichisthelongestroadinourcity?Whatisthehighestbuildinginourcity?Whatisthebusiestsubwaystationinourcity?Exercises一、單項選擇。1.Chinahasa______populationthanAmerica.A.more B.muchmore C.muchlarge D.muchlarger2.Xi’anisoneof_____inChina.A.morefamouscity B.mostfamouscitiesC.themostfamouscities D.muchmorefamouscity3.Chinaisthethird_____countryintheworld.A.large B.largest C.larger