Unit7What’sthehighestmountainintheworld?SectionAGrammarFocus形容詞和副詞的比較等級大數(shù)的讀法GrammarFocusWhat'sthehighestmountainintheworld?Qomolangma.HowhighisQomolangma?It's8,844.43metershigh.It'shigherthananyothermountain.Whichisthedeepestsaltlakeintheworld?TheCaspianSeaisthedeepestofallthesaltlakes.DidyouknowthatChinaisoneoftheoldestcountriesintheworld?Yes,Idid.It'smucholderthantheUS.GrammarFocus㈠數(shù)詞Number數(shù)詞是用來表示事物的數(shù)目和順序的詞。數(shù)詞的分類：1.基數(shù)詞2.序數(shù)詞3.分數(shù)詞1、1-19的基數(shù)詞one1two2three3four4five5

six6seven7eight8nine9ten10

eleven11twelve12thirteen13fourteen14fifteen15sixteen16seventeen17eighteen18nineteen192、20—90等十位數(shù)twenty20thirty30forty40fifty50sixty60seventy70eighty80ninety90twenty-one21twenty-two22………………其它的十位數(shù)照此類推，如：thirty-one31forty-two42seventy-five75ninety-six963、多位基數(shù)詞讀法890eighthundredand

ninety1〕101~999的三位數(shù)由“百位數(shù)＋and+兩位數(shù)組成”。如：

102onehundredandtwo325threehundredand

twenty-five2)三位數(shù)以上的數(shù)從個位往前數(shù)，每三位數(shù)加一個逗號，從后往前數(shù)：第一個逗號代表thousand,第二個逗號代表million,

第三個逗號是billion3、多位基數(shù)詞讀法111,121,435,678billionmillion

thousandonehundredelevenbillion

onehundredtwenty-onemillion

fourhundredthirty-fivethousand

sixhundredandseventy-eight在表達具體數(shù)字時，這幾個詞不能用復(fù)數(shù)形式，后面也不能加and。例如：注意2,648

16,250,064twothousand,sixhundredandforty-eightsixteenmillion,twohundredandfiftythousand,sixty-four

⑴表示確切數(shù)目時hundred,thousand,million,billion等前面有基數(shù)詞，用單數(shù)，后直接接復(fù)數(shù)名詞。如：4、確切數(shù)目與不確切數(shù)目的表達threehundredbooksfivethousandstudentssevenmillionstarts⑵表示不確切數(shù)目時，這類詞后加-s且與of連用。如：注意：這類短語中，名詞前如有定冠詞、指示代詞或形容詞性物主代詞時，可加of,但表示的是范圍。如：twohundredoftheworkers工人中的二百〔人〕hundredsofpeoplethousandsofstudentsmillionsofbirdsbillionsoflionsTheComparativeSuperlativeDegreesofAdjectives&Adverbs形容詞和副詞比較級和最高級GrammarFocus單音節(jié)詞和部分雙音節(jié)詞一般在詞尾加-er或-esttall-taller-tallest以不發(fā)音的字母e結(jié)尾的詞，直接加-r或-stnice-nicer-nicest以“輔音字母+y”結(jié)尾的詞，先把y變?yōu)閕，再加-er或-esteasy-easier-easiesthappy-happier-happiest（shy-shyer-shyest;shy-shier-shiest）重讀閉音節(jié)結(jié)尾，詞尾只有一個輔音字母，先雙寫這個輔音字母，再加-er或-estbig-bigger-biggestthin-thinner-thinnest多音節(jié)詞和部分雙音節(jié)詞在詞前加more或mostcarefully-morecarefully-mostcarefullydifficult-moredifficult-mostdifficult1.規(guī)那么變化3.不規(guī)那么變化：原級比較級最高級good/wellbetterbestbad/illworseworstlittlelessleastmany/muchmoremostfarfarther/furtherfarthest/furthestoldolder/elderoldest/eldestSheisastallasme。她與我一樣高。Hegetsupasearlyashisparents.他起床與他父母起得一樣早。I’mnotas[so]luckyasyou.我不像你那么幸運。Hedoesn’tstudyas[so]hardasMary.他學(xué)習(xí)不如瑪麗努力。

用“as+原級+as+比較對象”來表示“跟……一樣”。用“notso/as+原級+as+比較對象”來表示“不如……”。㈠形容詞與副詞原級的使用：1.表示兩者之間的選擇,可用“Which/Who…+比較，…or…?”.2.表示兩者之間的比較，通常用連詞than引導(dǎo)，表示“更……一些”．3.much/far/alot,even,still,alittle/abit…修飾比較級,表示程度.Whoruns

faster,heorshe?Heruns

fasterthan

she.Heruns

muchfasterthan

she.㈡形容詞和副詞比較級的用法4.“比較級+and+比較級”表示“越來越……”5.“the+比較級,the+比較級”表示“越…,越…”6.表示不及另一方時，用“l(fā)ess+原級+than…”(雙音節(jié)和多音節(jié)詞)Hebecomes

healthierandhealthier.Themore

youexercise,

thehealthier

youwillbe.Sheis

lesshealthythan

he.Heis

healthierthan

she.Shanghaiisbecoming

moreandmoremodern.練習(xí)：完成填空3._______________youare,_________mistakesyouwillmake.(你越仔細，做錯的題目就越少〕4.__________youeat,_________you’llbe.(你吃得越多,就越胖)ThemorecarefulthefewerThemorethefatter1.Thegirlbecomes______________________.(越來越漂亮〕moreandmorebeautiful2.Theweatherisgetting_________________.(越來越槽糕〕worseandworse

㈢形容詞和副詞的最高級e.g.WangLinisthetallestinourclass.Thistheateristhecheapestofthethree.英語中三者或三者以上相比較，表示“最……”這樣的最高程度概念時，形容詞最高級前通常用the，在副詞最高級前可用the，也可省略。這樣的句式中常含有表示比較范圍的介詞of或in;in后面一般接表示單位或場所的名詞，of后面一般接表示一群人或事物的代詞或名詞。使用最高級時應(yīng)注意以下幾點：(1)表示“最……之一”的句式，要用“oneofthe+形容詞最高級+復(fù)數(shù)名詞”。e.g.JinjiangHotelisoneofthebiggesthotelsinourcity.Lisaisnotoneofmybestfriends.(2)當(dāng)最高級前有物主代詞或名詞所有格時,不加定冠詞the。e.g.TomisLucy’sbestfriend.Tuesdayisherbusiestday.(3)最高級前可加序數(shù)詞。e.g.:TheYellowRiveristhesecondlongestriverinChina.(4)形容最高級修飾作表語或介詞賓語的名詞、代詞時，被修飾的詞往往省略。e.g.:Heisthelaziest(student)inourclass.Samistheshortestinhisclass.(改為同義句)Samis_______than_________studentinhisclass.Samis_______than_________studentsinhisclass.Samis_______than______________inhisclass.shorteranyothershortertheotheranyoneelseshorter練習(xí)：改寫句子oceanthePacificOceann.大海；海洋太平洋4a.Fillintheblankswiththecorrectformsofthewordsinthebox.1.TheAmazonRiverisoneofthe_________riversintheworld.It’salittle________thantheYangtzeRiver.bigmuchpopularlongoldhighlongestlonger2.Qomolangmais8,844.43meters______.It’soneofthemost________placesforseriousmountainclimbers.3.Nooceanintheworldisas______asthePacificOcean.4.AlthoughJapanis________thanCanada,itis_________smaller.popularbigoldermuchhighe.g.Tworivers：_________________and________________________________________________________________________________________________________________________________________________4b.Writetwocomparisonsabouttwotopics.Writetruefacts.

theYangtzeRivertheAmazonRiverTheYangtzeRiverisalmostaslongastheAmazonRiver.TheAmazonislongerthantheYangtze,buttheYangtzeisthelongestriverinChina. Twocities：__________and__________1.______________________________________2.___________________________________________________________________________Twoanimals：__________and__________1.______________________________________2.___________________________________________________________________________PairworkBeijingShanghai____________________________________________________________________________________________________________________________________________________________________________________4c.Writefivequestionsusingcomparisons.Thenaskyourpartneryourquestions.Whatisthehighestbuildinginourcity?Whoistheoldestpeopleinourcity?Whatisthemostpopularstreetinourcity?Whatisthemostdeliciousfoodinourcity?4c.Writefivequestionsusingcomparisons.Thenaskyourpartneryourquestions.Whereisthebusiestroadinourcity?一、同義句轉(zhuǎn)換

1.FlatAismoreexpensivethanFlatBFlatBis_______________thanFlatA.FlatBis_______________FlatA.FlatBisnot_________________FlatA.2.IprefermathstoEnglish.

Ilikemaths______________