Unit 7 What's the highest mountain in -Section A (Grammar Focus～4c)初中英语课件

Unit7

What'sthehighestmountainintheworld？第三课时 SectionA(GrammarFocus～4c)目录0102名师点拨课前预习03课堂小测04课后作业课前预习请同学们预习课本SectionA(课本P52)。预习完课本内容，同学们可以试着做以下题目，检测一下自己预习的效果！1.大海；海洋n.___________________核心单词ocean2.和……一样大___________________3.太平洋________________________

常考短语asbigasthePacificOcean4.世界上最高的山是什么？What's___________________________intheworld?5.珠穆朗玛峰有多高？___________________________isQomolangma?6.它有8848.86米高。It's____________________________.

典型句子thehighestmountainHowhigh8,848.86metershigh7.你知道中国是世界上最古老的国家之一吗？DidyouknowthatChinais_________________________intheworld?oneoftheoldestcountries名师点拨英语中的形容词在表示“更……”时，要用其比较级；在表示“最……”时，要用其最高级；原来的形式则称为原级。7

形容词的比较级和最高级1.形容词比较级和最高级的构成(1)规则变化构成方法原级比较级最高级一般单音节词在词尾加-er或-esttalltallertallest以e结尾的词只在词尾加-r或-stnicenicernicest以辅音字母结尾的重读闭音节词，双写词尾的辅音字母，再加-er或-estbigbiggerbiggest构成方法原级比较级最高级以“辅音字母+y”结尾的双音节词，先改y为i，再加-er或-esthappyhappierhappiest部分双音节和多音节词，在单词前面直接加more或mostimportantmoreimportantmostimportant续

表（2）不规则变化原级比较级最高级good/wellbetterbestbad/badly/illworseworstmany/muchmoremostlittlelessleastfarfarther/furtherfarthest/furthest2.形容词比较级的用法(1)表示两者进行比较时用形容词比较级，其结构为“A+谓语动词+形容词比较级+than+B.”。如：Sam'ssisteristallerthanmine.萨姆的妹妹比我的妹妹高。Theresultwasmoreperfectthanwhatweimagined.结果比我们想象的更完美。【注意】为了避免重复，在从句中常用theone,that,those等词来替代前面出现过的名词，其中theone替代可数名词单数形式，theones或those替代可数名词复数形式，that替代不可数名词。(2)表示程度的副词，如“两多(alot/much)两少(abit/alittle)”,even,far以及afew,still,rather等可以修饰形容词的比较级，表程度。如：She'smuch/even/alot/farhealthierthansheusedtobe.她比过去要健康得多。IthinkI'malittle/abitbettertoday.我想我今天更好一点了。(3)表示两者之间进行选择时，用句型“Which/Whois+形容词比较级，AorB?”表示。如：Whoistaller,LiMingorWangTao?谁更高，李明还是王涛？Whichsweaterismorebeautiful,theyellowoneorthepinkone?哪件毛衣更漂亮，黄色的还是粉色的？(4)表示“越来越……”时，用“比较级+and+比较级”表示，多音节词和部分双音节词用“moreandmore+形容词原级”表示。如：It'sgettingwarmerandwarmerinspring.春天天气越来越暖和了。Ourhometownisbecomingmoreandmorebeautiful.我们的家乡越来越漂亮了。(5)表示“越……，越……”时，用“the+比较级，the+比较级”结构。如：Thesooneryoucome,thebetter.你来得越早越好。Themoreworriedyouare,thelesshappyyou'llbecome.你越焦虑，就会越不开心。3.形容词最高级的用法(1)表示三者或三者以上的人或物进行比较时，用最高级形式。形容词最高级前必须加定冠词the，句末常跟一个in/of短语来表示范围。如：TheYangtzeRiveristhelongestriverinChina.长江是中国最长的河流。Heisthestrongestofthethreeboys.他是三个男孩子中最强壮的一个。（2）表示在三者或三者以上的人或物中进行选择时，用“Which/Whois+the+形容词最高级，A,BorC?”结构。如：Whichcityisthemostbeautifulone,Beijing,ShanghaiorGuangzhou?哪个城市最漂亮，北京、上海还是广州？（3）表示“最……的……之一”时，用“oneofthe+形容词最高级+复数可数名词”结构。如：Heisoneofthemostpopularsingers.他是最受欢迎的歌手之一。(4)形容词最高级前面可以加序数词，表示“第几……的”。如：Qomolangmaisthefirsthighestmountainintheworld.珠穆朗玛峰是世界第一高山。Billyisthesecondtallestboyinourclass.比利是我们班第二高的男孩。（5）形容词最高级前面可以有物主代词、指示代词、名词所有格等修饰，但此时不能再用定冠词the。如：Cindyismybestfriend.辛迪是我最好的朋友。Yesterdaywashisbusiestday.昨天是他最忙的一天。

一、根据句意，用所给单词的适当形式填空1.Thebluebasketisalittle___________________(heavy)thantheblackone.2.Georgeisoneof___________________(popular)teachersinourschool.3.Itwashotyesterday,butitismuch________________(hot)today.专

练

heavierthemostpopularhotter4.Whichdoyoulike___________________(well),Chinese,Englishormath?5.My__________________________(beautiful)dreamofallistotravelallovertheworld.bestmostbeautiful二、单项填空()6.Whichlanguageis___________,SpanishorFrench?A.difficult

B.moredifficultC.mostdifficult

D.thedifficultB(

)7.Cherryis___________amongallthejudges(法官).A.themostpopular

B.thepopularestC.mostpopular

D.morepopularA()8.Helooks___________thanyou,butheisn'tas___________asyou.A.taller;stronger

B.taller;strongC.tall;stronger

D.tall;strongB(

)9.—DoyoulikeWesternfood?—No.Ithinkthefoodofourcountryis___________thatofWesterncountries.A.rathergoodthan

B.morebetterthanC.muchbetterthan

D.notsogoodasC()10.Ifthereare___________peopledriving,therewillbe___________airpollution.A.fewer;less

B.fewer;fewerC.less;fewer

D.less;lessA一、根据句意及首字母或中文提示，用单词的适当形式填空1.LosAngelesisoneofthe___________________(大的)citiesintheworld.2.TheYangtzeRiveris

l____________thananyotherriverinChina.3.Chinaismuch

o____________thantheUnitedStates.It'sacountrywithalonghistory.课堂小测biggestongerlder4.Nosaltlakeintheworldisas

d____________astheCaspianSea.5.—Whatisthe

h____________buildinginChina?—It'stheShanghaiTower.eeptighes二、找出下列句子的错误，并将错误部分在横线上进行更正6.TheCaspianSeaisthemostdeepsaltlakeintheworld._________________________________7.Climbingmountainsisdangerousthanswimming._________________________________mostdeep改为deepestdangerous改为moredangerous8.Janeis1.50metertall.___________________________________9.CityMovieTheaterislargestcinemainourcity._____________________________________10.Tinarunsfasterthananygirlinherclass.___________________________________meter改为meterslargest改为thelargestany改为anyother三、单项填空（语法专练）()11.Ofallthestudents,Kateis___________oneinherclass.A.careful

B.mostcarefulC.morecareful

D.themostcarefulD()12.—Howhardyouareworking，Helen！—Wemust！PresidentXisaidthat_________________weare，_________________wewillbe.A.themorehard-working；theluckierB.thehard-working；theluckyC.morehard-wor