人教版八年级英语下册《What's the highest mountain in the world》SectionA 教学课件

SectionA1a-2dTolearntocomparefacts.Tolearntoexpresslargenumbers.Tolearntotalkaboutgeographyandnature.Tolearnnewwords:square,meter,deep,desert,population,Asia,tour,tourist,wall,ancient,protect,wide…ObjectivesWhat’sthehighestmountainintheworld?Howhighisit?QomolangmaQomolangmaisthehighestmountainintheworld.Itis8,848.86metershigh.FreetalkWhatdoyouknowaboutthefollowingnumbers?1,025metersdeeptheCaspianSeaWhatdoyouknowaboutthefollowingnumbers?6,671kilometerslongtheNileWhatdoyouknowaboutthefollowingnumbers?9,000,000squarekilometersinsizetheSaharasquaremeterdeepdesertpopulationAsiafeelfreetourn.

平方；正方形n.

米；公尺adj.

深的；纵深的n.

沙漠n.

人口；人口数量n.

亚洲(可以)随便(做某事)n.&v.

旅行；旅游WordsandExpressionstouristwallamazingancientprotectwideasfarasIknowman-maden.

旅行者；观光者n.

墙adj.

令人大为惊奇的；令人惊喜（或惊叹）的adj.

古代的；古老的v.

保护；防护adj.

宽的；宽阔的就我所知adj.

人造的Qomolangma about9,000,000squarekilometersinsize TheSahara 1,025metersdeep TheCaspianSea6,671kilometerslong TheNile 8,848.86metershighMatchthefactsyouknow.1a1.Qomolangmais__________thananyothermountainintheworld.2.TheSaharais____________desertintheworld.3.TheCaspianSeais____________ofallthesaltlakes.4.TheNileis_____________riverintheworld.Listenandcompletethesentences.higherthebiggestthedeepestthelongest1bUsetheinformationin1btomakeconversations.A:Whatisthehighestmountainintheworld?B:Qomolangma.1cWhatisthebiggestdesertintheworld?Sahara.Whatisthedeepestsaltlakeintheworld?Caspiansea.Whatisthelongestriverintheworld?Nile.____TheYangtzeRiverisabout____kilometerslongandtheYellowRiveris____kilometerslong.____Chinahasthebiggestpopulationintheworld.It’salotbiggerthanthepopulationoftheUS.Listenandnumberthefacts[1-4]intheorderyouhearthem.242a6,300 5,0005,464 300____Chinaisover________yearsold.IthasamuchlongerhistorythantheUS.TheUSisnoteven_______yearsold.____ChinaisaboutthesamesizeastheUS,anditisthebiggestcountryinAsia.13____TheYangtzeRiverisabout___________kilometerslongandtheYellowRiveris___________kilometerslong.____Chinahasthebiggestpopulationintheworld.It’salotbiggerthanthepopulationoftheUS.Listenagainandfillintheblankin2awiththenumbersinthebox.6,300 5,0005,464 3002b246,3005,464____Chinaisover_________yearsold.IthasamuchlongerhistorythantheUS.TheUSisnoteven__________yearsold.____ChinaisaboutthesamesizeastheUS,anditisthebiggestcountryinAsia.135,000300A:DidyouknowthatChinaisoneoftheoldestcountriesintheworld?B:Yes,Idid.It’smucholderthanmycountry.Makeconversationsusingtheinformationin2a.2cRole-playtheconversation.2dGuide:Feelfreetoaskmeanythingontoday’sGreatWalltour.Tourist1:Howlongisthewall?Guide:Ah,themostpopularquestion!Ifwe’reonlytalkingaboutthepartsfromtheMingDynasty,it’sabout8,850kilometerslong.Thismakesitthelongestwallintheworld.Tourist2:Wow,that’samazing!Whydidtheancientemperorsbuildthewall?Guide:Themainreasonwastoprotecttheirpartofthecountry.Asyoucansee,it’squitetallandwide.AsfarasIknow,therearenootherman-madeobjectsasbigasthis.Tourist3:IsBadalingpartoftheMingGreatWall?Guide:Yes,it’sthemostfamouspart.Readtheconversationandanswerquestions.Whichisthebiggestman-madeobjectintheworld?2.WhichisthemostfamouspartoftheMingGreatWall?TheGreatWall.Badaling.Role-playtheconversation.Tourist1Tourist2Tourist3TheGreatWallisabout8,850kilometerslong.Thismakesitthelongestwallintheworld.......1.

populationpopulation意为“人口数量”，谓语动词要用单数形式。询问人口数量时要用“What’sthepopulationof...?”提问，而不用howmany或howmuch等提问。表示人口“多”要用large或big；表示人口“少”要用small。Languagepoints这个城市的人口是600万。Thepopulationofthiscityissixmillion．中国的人口比美国的人口多很多。ThepopulationofChinaismuch

largerthanthatoftheUSA.2.

man-made为合成形容词，意为“人造的”。英语中像这样与-made复合而成的形容词还有：handmade(手工制作的)、homemade(家庭制作的)、machine-made(机制的)等，用以描述产品的生产或制造手段、特点等。这种鱼都是自家做的。Thiskindoffishis

homemade.3.Feelfreetoaskmeanythingontoday’sGreatWalltour.在今天的长城游中，大家尽管问我任何问题，不要拘束。feelfree是英语口语中一个常用表达。若有人让你feelfreetodosomething，就是让你无需拘束，只管按照自己的意愿去做某事。e.g.A:CanIuseyourcomputer?

我可以用一下你的电脑吗？B:Yes,feelfree.可以，请随意。4.AsfarasIknow,therearenoman-madeobjectsasbigasthis.据我所知，再没有像它这样大的人造物体了。asfarasIknow是一个固定的表达方式，还可以说sofarasIknow，意思是“据我所知”。AsfarasIknow,Chinaisaverylargecountry.就我所知，中国是一个非常大的国家。Theyareveryexcited,sofarasIknow.他们特别激动—就我所知是这样的。5.Qomolangmais8,848.86metershigh.Itis…metershigh(long,wide…).

它……米高(长,宽……)。英语表示“有多长(宽，高……)”时，一般将数词和数量单位放在表示长宽高的形容词前作状语。这座山高三千多米。Themountainismorethanthreethousandmetershigh.它离我们只有三十八万公里。Itisonly380,000kilometersaway.这座绿色长城长7,000公里。TheGreenGreatWallis7,000kilometerslong.muchhigher

意为“高得多”。在形容比较级前还可以用much,even,alittle,still,alot,less等修饰词表示程度。6.It’smucholderthanmycountry.比我的国家更古老。他比我跑得更快。Herunsevenfaster

thanI.日本土地面积只比德国大一点儿。JapanisalittlelargerthanGermanyinarea.7.theMingGreatWall明长城“明长城”是指明朝时期为了防御北方游牧民族的骚扰，历时一百多年在北部地区修筑的军事防御工程。这段长城东起辽宁虎山，西至甘肃嘉峪关，从东向西横贯多个省、直辖市、自治区，全长约8851.8千米，是现存历代长城遗迹中最完整、最坚固的。1.Itis…metershigh(long,wide…).2.What’sthe

populationof...?3.much,even,alittle,still,alot,less+形容词比较级4.asfarasIknow…as/sofarasIcanremember/Icantell/Icanseeasfaras

远至5.合成词man-madeSummaryEnglish-Chinesesquare,meter,desert,population,Asia,wallChinese-English

深的；随便；旅行；旅行者；令人大为惊奇的；古代的；保护；宽阔的；就我所知DictationTheYangtzeRiveris__________________riverintheworld.(第三长河）2.TheAtlanticis__________________oceanintheworld.(第二大洋）thethirdlongestthesecondbiggestⅠ.根据提示完成句子。Exercises3.LinTaois___________________________intheclassbecausehenevergetstoschoolontime.（最懒的学生之一）4.Edisonwas______________________________intheworld.(最伟大的发明家之一）oneofthelazieststudentsoneofthegreatestinventors1.Thisbikeismoreexpensivethanthatbike.Thatbikeis_______________thanthisbike.Thatbikeis_______________thisbike.Thatbikeisnot_________________thisbike.lessexpensivecheaperthanasexpensiveasⅡ.同义句转换。2.IprefermathstoEnglish.Ilikemaths__________________English.betterthan3.Heisthetalleststudentintheclass.Heis_______________________________intheclass.tallerthananyotherstudentanyother+名词单数1.HainanisaverylargeIsland.Itisthesecond_________islandinchina.(large)2.Ourteacherisas___________asbefore.(busy).3.Heis_________________amongus.(careful)busythemostcarefullargestⅢ.完成句子。4.LiLeijumped___________thanJim.(far)5.Thebusierheis,the____________hefeels.(happy)6.IthinkMingmingisoneof______________basketballplayersintheclub.(hot)fartherhappierthehottestⅣ.翻译下列句子。1.据我所知，他将外出三个月。AsfarasIknowhe’llbeawayforthreemonths.

2.这条河长三百米。Thisriveris300meterslong.3.这个省份的人口有一千万。Thepopulationofthisprovinceistenmillion.V.写出下列单词的比较级和最高级。1.good2.comfortable3.big4.happy5.cheap6.many7.difficult8.little

1.good2.comfortable3.big4.happy5.cheap6.many7.difficult8.littlebetter

bestmore～

most～bigger

biggesthappier

happiestcheaper

cheapestmore

mostmore～

most～less

least1.Lilygetsup__________(early)thanLucy.2.Whichgoes______________(slowly),TomorJim?3.Thisbookis__________________(interesting)thanthatone.earliermoreslowlymoreinterestingVI.根据所给词的适当形式填空。4.Sheworks_____________________(careful)inherschool.5.Whogoestobed_________(late),Jim,TomorJack?6.Ithinkturkeyis____________________(delicious)ofall.themostcarefullylatestthemostdeliciousU7S-Shanghaiisoneof____intheworld．A.thebiggestcities B.biggestcities

C.thebiggestcity

D.biggercities中考链接句意为“上海是世界上最大的城市之一。”oneof后面要跟形容词最高级，名称复数，故选A。U7S-—Goodnews!TheChinesewomenfootballteamcamefirstinthe2022Asiancup.—Exactly.Thefinalis________oneIhaveeverseen.A.alessamazingB.themostamazingC.amoreamazingD.theleastamazing句意:好消息!中国女足在2022年亚洲杯中获得第一名。确实。决赛是我见过的最令人惊叹的比赛。根据“Ihaveeverseen."可知，此处应使用最高级，故选B。Practicewithyourclassmatestospeakandwritelargenumbers.Writesomenumbercardsandputtheminyourroom.Wheneveryousee,readthemquickly.HomeworkSectionA3a-3cTolearnaboutQomolangma.Tolearnnewwords:achievement,thick,include,condition,succeed,achieve,force,nature…ObjectivesWhat’sthehighestmountainintheworld?Howhighisit?Doyouknow?FreeTalk

Doyoulikemountainclimbing?

Doyouknowthemostpopularplacestogoforit?OneofthemostpopularplacestogoformountainclimbingistheHimalayas.喜马拉雅山（Himalayas）：世界最雄伟高大的山系。“喜马拉雅”，藏语意为“冰雪之乡”。分布在中国西藏自治区和巴基斯坦、印度、尼泊尔、不丹境内。呈向南凸出的弧形，为构造复杂的年轻褶皱山脉。东西长约2450千米，南北宽200-350千米。由数条大致平行的山脉组成。平均海拔6000米，8000米以上高峰有10座，中、尼边界上的珠穆朗玛峰（8848.86米）为世界第一高峰。珠穆朗玛峰(Qomolangma)，喜马拉雅山主峰。“珠穆朗玛”藏语意为“女神第三”。在中国西藏自治区和尼泊尔结界处的喜马拉雅山中段。山体呈巨型金字塔状。海拔8848.86米，是世界第一高峰，有“世界第三极”之誉。有巨大冰川，最长达26千米。1960年5月25日中国登山队首次从北坡攀登峰顶。achievementsouthwesternthickincludefreezingconditiontakeinn.

成就；成绩adj.

西南的；西南方向的adj.

厚的；浓的v.

包括；包含adj.

极冷的；冰冻的n.

条件；状况吸入WordsandExpressionssucceedchallengeinthefaceofachieveforcenatureeventhoughv.

实现目标；成功v.&n.

挑战；考验面对（问题、困难等）v.

达到；完成；成功n.

力；力量n.

自然界；大自然(=evenif)即使；虽然Readthearticleandmatcheachparagraphwiththemainideas.

Qomolangma—theMostDangerousMountainintheWorld?Oneoftheworld’smostdangeroussportsismountainclimbing,andoneofthemostpopularplacesforthisistheHimalayas.TheHimalayasrunalongthesouthwesternpartofChina.Ofall3athemountains,Qomolangmarisesthehighestandisthemostfamous.Itis8,848.86metershighandsoisverydangeroustoclimb.Thickcloudscoverthetopandsnowcanfallveryhard.Evenmoreseriousdifficultiesincludefreezingweatherconditionsandheavystorms.Itisalsoveryhardtotakeinairasyougetnearthetop.ThefirstpeopletoreachthetopwereTenzingNorgayandEdmundHillaryonMay29,1953.ThefirstChineseteamdidsoin1960,whilethefirstwomantosucceedwasJunkoTabeifromJapanin1975.Whydosomanyclimbersrisktheirlives?Oneofthemainreasonsisthatpeoplewanttochallengethemselvesinthefaceofdifficulties.Thespiritoftheseclimbersshowsusthatweshouldnevergiveuptryingtoachieveourdreams.Italsoshowsthathumanscansometimesbestrongerthantheforcesofnature.Paragraph1Paragraph2Paragraph3SpiritofclimbersAchievementsofclimbersFactsanddangersReadthearticleandmatcheachparagraphwiththemainideas.ReadPara.1andfillintheblanks.factsdangersforclimbersrunalong___________________________Itrisesthe_______andisthemostfamous.Itis______________high.thesouthwesternpartofChina8,848.86metershighestthickcloudsfreezingweatherconditionsheavystormsWhoWhenAchievementsTenzingNorgayEdmundHillarythefirstpeoplereachedthetoptheChineseJunkoTabeiin1960in1975thefirstChineseteamreachedthetop.thefirstwomantosucceedinreachingthetop.ReadPara.2andfillinthechart.onMay29,1953SpiritofclimbersPeoplewantto__________________inthefaceofdifficulties.Weshouldnevergiveuptryingto__________________.Humanscansometimes______________theforcesofnature.challengethemselvesachieveourdreamsbestrongerthanReadPara.3andtellthespiritofclimbers.Paragraph1Listfourdangersforclimbers:thickcloudssnowslidefreezingweatherconditionsheavystormsReadthearticleagainandcompletethechart.3bParagraph2Listthreeachievements:1953-TenzingNorgayandEdmundHillarywerethefirsttoreachthetop1960-ThefirstChineseteamdidso1975-TheJapaneseJunkoTabeisucceededdoingso Paragraphs1&3Listfourcomparisons: mostdangeroussportmostpopularplacesthehighestmountainthemostfamousmountainWherearetheHimalayas?2.HowhighisQomolangma?Answerthequestionsusinginformationfromthearticle.TheHimalayasrunalongthesouthwesternpartofChina.Itis8,848.86metershigh.3c3.Whydosomanypeopletrytoclimbthismountaineventhoughitisdangerous?Oneofthemainreasonsisthatpeoplewanttochallengethemselvesinthefaceofdifficulties.4.Whatdoesthespiritoftheclimberstellus?Thespiritoftheseclimbersshowsusthatweshouldnevergiveuptryingtoachieveourdreams.Italsoshowsthathumanscansometimesbestrongerthantheforcesofnature.1.Evenmoreseriousdifficulties

includefreezingweatherconditionsandheavystorms.更加严峻的困难包括极冷的天气状况和巨大的风暴。 1)difficulty既可作可数名词也可作不可数名词，在此用作可数名词。Languagepoints作可数名词时，difficulty通常用作复数，表示具体概念，即：各种各样的“困难；难题；难事”。例如：Peoplelearninganewlanguagemayfacesomedifficulties.人们学习一门新的语言时可能会遇到一些困难。Ifyouhaveanydifficulties,youcancallmeforhelp.如果你遇到任何困难，给我打电话。作不可数名词时，difficulty可译作“困难；艰难；辛苦；费劲”，例如：Hehadgreatdifficultyinfindinganewjob.他找新的工作费了很大劲。 Wefoundthehousewithoutdifficulty.我们轻而易举地找到了那座房子。2)include表示“包括；包含”，是一个及物动词。例如：Doesyourpriceofthebikeincludethislight?你们的车价包含这盏车灯吗？ 2.Thespiritoftheseclimbersshowsusthatweshouldnevergiveuptryingtoachieveourdreams.这些登山者的精神向我们表明：我们绝不应该放弃实现自己梦想的尝试。1)giveupdoingsomething的意思是“放弃做某事；半途而废”Hegaveuplearningathirdlanguageafterhegotthejob.他找到工作之后就放弃了对第三门语言的学习。2)achieveourdreams相当于makeourdreamscometrue其中动词achieve表示“（通过努力）实现；取得；获取；达到（梦想、成绩、成功、目的)”等。例如：Heachievedgreatsuccessinashorttime.他用很短的时间取得了极大的成功。LinTaoachievedverygoodexamresults.林涛考试取得了很好的成绩。3.

Thickcloudscoverthetopandsnowcanfallveryhard.Evenmoreseriousdifficultiesincludefreezingweatherconditionsandheavystorms.山顶上浓云覆盖，而且雪可能下的很大。更严重的困难是冰冻天气和强烈的暴风雪。thick

adj.1)厚的；粗的Howthickistheboard?这块木板有多厚?2)浓的，浓厚的；粘稠的；混浊的Itisdangeroustodriveinathickfog.在浓雾天驾车很危险。freezing

adj.冻结的；冰冻的；极冷的It’sfreezingoutsidenow.现在外面冷极了。It’sverycoldtoday,thetemperaturehasdroppedtofreezingpoint.今天很冷，温度降到了冰点。描述天气时，英语形容词与名词的搭配与汉语不尽一致，值得注意。此处thickclouds(密集的云层；厚密的云块)、freezingweather(极度寒冷的天气)和heavystorms(大暴雪/雨)就是颇具说服力的例子。与weather、storm、snow、cloud、air这五个本单元课文所出现的天气名词有关的部分描述性搭配：表现“寒冷”时常与weather搭配的形容词：cold,freezing,icy表现暴风雨之“凶猛”时部分与storm搭配

的常见形容词：bad,big,great,heavy,terrible,disastrous,fierce,tremendous,violent表现snow之“强弱”时的搭配：heavy,thick,light表现云层“疏密”时常与cloud搭配的形

容词：light,thick,heavy,dense表现“乌云”时cloud一词的常见搭配：black,dark,gray,dense表现空气“稀薄”、“浑浊”、“潮湿”

时与air搭配的形容词：thin,thick,humid4.Itisalsoveryhardtotakeinairasyougetnearthetop.当你接近山顶时，吸入空气也会很困难。1)动词不定式在作主语时，常用it作形式主语，而往往将动词不定式放在谓语或表语之后。It’snoteasytolearnaforeignlanguagewell.=Tolearnaforeignlanguagewellisnoteasy.学好一门外语不容易。2)takein吸入takein:(tounderstandcompletelythemeaningorimportanceofsomething)理解；领会；领悟Fishtakeinoxygenthroughtheirgills(鳃).IhadtoreadthelettertwicebeforeIcouldtakeitallin.最危险的运动之一2.登山，攀岩3.全世界4.中国的东南边境5.山顶oneofthemostdangeroussportsmountainclimbingintheworldthesouthwesternpartofChinamountaintopSummary6.严寒的天气条件7.暴风雪8.冒着生命危险9.放弃10.实现梦想freezingweatherconditionheavystormsgiveupriskone’slifeachieveone’sdreamEnglish-Chinese

southwestern,condition,nature,force,Chinese-English

成就；厚的；包括；极冷的；吸入；实现目标；挑战；面对(问题、困难等)；达到；即使Dictation1.Letthef______(力量)bewithyou.2.Hecouldnotf______(强迫)metopay.3.Shelookedatmewithc_________(挑战).4.Theyliketobeoutin_______(大自然).5.Itwasagoodtrybutitdidn’t_________(成功).orceorcehallengesucceednatureⅠ.根据首字母或汉语提示完成句子。Exercises登山是世界上最危险的运动之一。

Oneoftheworld’smostdangeroussportsismountainclimbing.2.攀登珠穆朗玛峰非常危险。ItisverydangeroustoclimbtheQomolangma.3.当你接近山顶时，你还会感到呼吸非常困难。Itisalsoveryhardtotakeinairasyougetnearthetop.Ⅱ.翻译下列句子。4.不要冒着生命危险去闯红灯。5.人们想在困难面前挑战自我。6.永远不要放弃尝试实现我们的梦想。Don’triskyourlifetorunredlights.Peoplewanttochallengethemselvesinthefaceofdifficulties.Weshouldnevergiveuptryingtoachieveourdreams.-What’s____riverinChina?-TheYangtzeRiver.It’sabout6300kilometerslong.A.long B.longerC.longest D.thelongest中考链接句意:中国最长的河是哪一个？长江。它有大约6300千米长。根据“inChina"可知，此处应使用最高级，故选D。Reviewthenewwordsandexpressions.Retell3a.achievement,thick,include,condition,succeed,achieve,force,nature,eventhoughHomeworkSectionAGrammarFocus-4cTolearntousecomparativesandsuperlativeswithadjectivesandadverbs.Tolearntocompareanddescribethings.ObjectivesoceanthePacificOceann.

大海；海洋n.

太平洋WordsandexpressionsWhat’sthehighestmountainintheworld?Qomolangma.HowhighisQomolangma?It’s8,844.86metershigh.It’shigherthananyothermountain.Whichisthedeepestsaltlakeintheworld?TheCaspianSeaisthedeepestofallthesaltlakes.DidyouknowthatChinais

oneoftheoldestcountriesintheworld?Yes,Idid.It’smucholderthantheUS.GrammarFocus1)Qomolangmaishigherthan

anyothermountainintheworld.2)TheSaharaisthebiggestdesertintheworld.3)TheCaspianSeaisthedeepestofallthesaltlakes.4)TheNileisthelongestriverintheworld.5)What’sthehighestmountainintheworld?6)Chinahasthebiggestpopulationintheworld.7)It’salotbiggerthanthepopulationoftheUS.8)Chinaisover5000yearsold.IthasamuchlongerhistorythantheUS.9)ChinaisalmostasbigastheUS,anditisthebiggestcountryinAsia.10)—DidyouknowthatChinaisoneoftheoldestcountriesintheworld?—Yes,Idid.It’smucholderthanmycountry.11)Thismakesitthelongestwallintheworld.12)It’sthemostfamouspart.13)Oneoftheworld’smostdangeroussportsismountainclimbing,andoneofthemostpopularplacesforthisistheHimalayas.1)Qomolangmais______thananyothermountainintheworld.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______________sportsismountainclimbing,andoneof_______________placesforthisistheHimalayas.

theoldestmucholderthelongestthemostfamousmostdangerousthemostpopular形容词和副词的比较级和最高级大多数形容词和副词都有三个级。原级:常用结构as...as...

像……一样

ZhengMingisastallasTom.郑明和汤姆一样高。2)比较级(用于两者之间的比较)常用结构：形容词比较级＋than...Heistaller

thanI.他比我高。Grammar3)最高级(用于三者或三者以上的比较)，常用结构:the+形容词的最高级＋of/in...

Heisthe

tallest

ofthethree.他是这三个人中最高的。

Heisthe

funniest

inhisclass.他是他们班最有趣的。形容词、副词比较级和最高规则变化和不规则变化。规则变化

一般情况下，单音节或双音节的形容词（或副词）比较级＋er

，最高级＋est

如：clever－cleverer－cleverest

few－fewer－fewest

small－smaller－smallest等。以e结尾的词，比较级＋r，最高级＋st

即可。如：nice－nicer－nicestcute－cuter－cutestlarge－larger－largest以辅音字母＋y结尾的变y为i＋er或est

如:easy－easier－easiest

happy－happier－happiest

再如：early,busy,heavy,dirty,lazy也如此。多音节和部分双音节的词需要在形容词原级前＋more构成比较级，＋themost构成最高级。如：beautiful－morebeautiful－themostbeautiful又如:delicious,popular,important,interesting,expensive,creative双音节的词如:

careful－morecareful

－themostcareful

useful－moreuseful－themostuseful少数单音节词也是这样，如：

pleased－morepleased－themostpleasedtired－moretired－the

mosttiredb)不规则变化：

good—better—bestwell—better—best

bad－worse

－worst

many,much—more—most

far—farther—farthest

(距离远)

far—further—furthest

(程度深)old—elder—eldest

(长幼)

old—older—oldest

(年龄)Fillintheblankswiththecorrectformsofthewordsinthebox.1.TheAmazonRiverisoneofthe_________riversintheworld.It’salittle________thantheYangtzeRiver.2.Qomolangmais8,844.43meters_______.bigmuchpopularlongoldhighlongestlongerhigh4aIt’soneofthemost__________placesforseriousmountainclimbers.3.Nooceanintheworldisas________asthePacificOcean.4.AlthoughJapanis_______thanCanada,itis________smaller.popularbigoldermuche.g.Tworivers：_________________and________________________________________________________________________________________________________________________________________________Writetwocomparisonsabouttwotopics.Writetruefacts.

theYangtzeRivertheAmazonRiverTheYangtzeRiverisalmostaslongastheAmazonRiver.TheAmazonislongerthantheYangtze,buttheYangtzeisthelongestriverinChina. 4bTwocities：__________and_________________1._________________________________________2.___________________________________________________________________________________Twoanimals：___________and_____________1.________________________________________2.________________________________________________________________________________SingaporeKunlaLumpurKunlaLumpurisasmodernasSingapore.SingaporeisbiggerthanKunlaLumpurandhasalargerpopulationthanKunlaLumpur.MonkeyDogAdogisbiggerthanamonkey.Amonkeyissmallerthanadog,butitclimbsatreefasterthanadog.Writefivequestionsusingcomparisons.Thenaskyourpartneryourquestions.__________________________________________________________________________________________________________________________________________________________________________________________________________________Whatisthehighestbuildinginourcity?Whoistheoldestpeopleinourcity?Whatisthemostpopularstreetinourcity?Whatisthemostdeliciousfoodinourcity?Whereisthebusiestroadinourcity?4c1.WearegoingtotheGreenRestaurantforlunch.(划线提问)____________yougoingforlunch?2.Samistheshortestinhisclass.(改为同义句)Samis________than___________studentinhisclass.WhereareshorteranyotherⅠ.改写句子。ExercisesSamis__________than____________studentsinhisclass.Samis_________than_______________inhisclass.3.HowdoyoulikeScreenCity?(改为同义句)_______doyou__________ScreenCity?Whatthinkofanyone

elseshortershorterthe

other

—Whowouldyouliketobeyourassistant,JackorDavid?—IfIhadtochoose,Davidwouldbethe_________(good)choice.2.—Howwasyourmathexam,Nancy?—IthinkIdiditwell,althoughitwas_____________(difficult)thanthelastone.Ⅱ.用括号内所给单词的适当形式填空。bettermoredifficult3.—Didyouhaveawonderfultimeattheparty?—Yes