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Unit7What’sthehighestmountainintheworld?SectionAWhat’sthehighestmountainintheworld?What’sthelargestdesertintheworld?What’sthelongestriverintheworld?Doyouknowtheseinterestingplaces?QomolangmaQomolangmarunsalongtheborder(边界)betweenChinaandNepal.Itiscoveredwithsnowalltheyearround.It’s8,844.43high,thehighestintheworld.It’s26kilometerslong.zHowhighisQomolangma?It’s8,844.43metershigh.TheheightofQomolangmais8,844.43meters.Thehighestmountainintheworldis8,844.43metershigh.TheNileisthelongestriverintheworld.It’smorethan6,600kilometerslong.Itrunsthrough9countries,it’soneofthelargestriverflowsthroughtheinternationalstatesintheworldandrunsintotheMediterraneanSea(地中海)intheend.TheNileTheNile——thelongestriverTheCaspianSeaTheCaspianSeaisthebiggestlakeintheworld.ItliesintheborderbetweenAsiaandEurope.ThebiggestdesertintheworldtheSaharaHowbigistheSahara?It’sabout9,600,000squarekilometersinsize.Thebiggestdesertintheworldisabout9,600,000squarekilometersinsize.学习目标话题：谈论地理和自然重点：1.大数字2.形容词和副词的比较级与最高级3.倍数的表达方式难点：形容词和副词的比较级与最高级squaren.平方metern.米ancientadj.古代的wideadj.宽的；宽阔的重点单词deepadj.深的desertn.沙漠populationn.人口Asian.亚洲tourv.&n.旅行touristn.旅行者;观光者walln.墙amazingadj.令人大为惊奇的freezingadj.极冷的；冰冻的naturen.大自然thickadj.厚的；浓的protectv.保护；防护achievementn.成就；成绩includev.包括；包含conditionn.条件；状况succeedv.实现目标；成功achievev.达到；完成；成功forcen.力；力量更多重点单词1aMatchthefactsyouknow.Qomolangmaabout9,600,000squarekilometersinsizeTheSahara1,025metersdeepTheCaspianSea6,671kilometerslongTheNile8,844.43metershigh1bListenandcompletethesentences.1.Qomolangmais_______thananyothermountainintheworld.2.TheSaharais___________desertintheworld.3.TheCaspianSeais__________ofallthesaltlakes.4.TheNileis____________riverintheworld.higherthebiggestthebiggestthelongest__TheYangtzeRiverisabout_____kilometerslongandtheYellowRiveris_______kilometerslong.__Chinahasthebiggestpopulationintheworld.It’salotbiggerthanthepopulationoftheUS.__Chinaisover______yearsold.IthasamuchlongerhistorythantheUS.TheUSisnoteven_____yearsold.__ChinaisalmostasbigastheUS,butitisthebiggestcountryinAsia.2aListenandnumberthefacts[1-4]intheorderyouhearthem.6,3005,0005,46430014322bListenagainandfillintheblanksin2awiththenumbersinthebox.1TheYangtzeRiverisabout_____kilometerslongandtheYellowRiveris_______kilometerslong.4Chinahasthebiggestpopulationintheworld.It’salotbiggerthanthepopulationoftheUS.3Chinaisover______yearsold.IthasamuchlongerhistorythantheUS.TheUSisnoteven_____yearsold.2ChinaisalmostasbigastheUS,butitisthebiggestcountryinAsia.6,3005,4645,0003002cMakeconversationsusingtheinformationin2a.DidyouknowthatChinaisoneoftheoldestcountriesintheworld?Yes,Idid.It’smucholderthanmycountry.2dRole-playtheconversation.theirpartofthecountry.3aReadthearticleandmatcheachparagraphwiththemainideas.Paragraph1SpiritofclimbersParagraph2AchievementsofclimbersParagraph3Factsanddangers3bReadthearticleagainandcompletethechart.Paragraph1Paragraph2Paragraphs1&3ListfourdangersforclimbersListthreeachievementsListfourcomparisonsthickclouds1953—TenzingNorgayandEdmundHillarywerethefirsttoreachthetopmostdangeroussportsnow,freezingweatherconditionsandheavystorms1960—thefirstChineseteam1975—thefirstwomanthepopularplacesthehighestmountainthemostfamous3cAnswerthequestionsusinginformationfromthearticle.1.WherearetheHimalayas?2.HowhighisQomolangma?3.Whydosomanypeopletrytoclimbthismountaineventhoughitisdangerous?4.Whatdoesthespiritoftheclimberstellus?TheyrunalongthesouthwesternpartofChina.8,844.43metreshigh.Becausepeoplewanttochallengethemselvesinthefaceofdifficulties.Weshouldnevergiveuptryingtoachieveourdreams.语法探究形容词和副词的比较级和最高级三者或三者以上相比，表示最高程度时，用“the+最高级”的结构表示。这种句式一般常有表示比较范围的介词短语。例如：ZhangHuaisthetallestofthethree.Heworks(the)hardestinhisclass.形容词和副词的比较级和最高级（规则变化）单音节词和少数多音节词一般在词尾加-er或-est原级比较级最高级highstrongfastslowhigherhigheststrongerstrongestfasterfastestslowerslowest以字母e结尾的词，加-r或-st原级比较级最高级finecutelargefinerfinestcutercutestlargerlargest以“辅音字母+y”结尾的双音节词，先改“y”为“i”，再加-er或-est原级比较级最高级easyluckyearlyeasiereasiestluckierluckiestearlierearliest重读闭音节，单辅音结尾的，双写这个辅音字母加-er或-est的词：原级比较级最高级fatfatterfattestthinthinnerthinnesthothotterhottestredredderreddestwetwetterwettestbigbiggerbiggest多音节词和部分双音节词在词前加more或most原级比较级最高级deliciousinterestingeasilycarefullymoredeliciousmostdeliciousmoreinterestingmostinterestingmoreeasilymosteasilymorecarefullymostcarefullybetterbestworseworstmoremostlessleastfartherfarthestfurtherfurthest（不规则变化）原级比较级最高级good/wellbad/badlymany/muchlittlefarI.单项选择达标训练【解析】选D。考查形容词的比较等级。句意：我在中学的时光是我生命中最激动人心的阶段之一。“oneof+形容词最高级+名词的复数形式”结构表示“最……之一”。故选D。1.Mytimeinthemiddleschoolwasoneof________periodsofmylife.A.excitingB.moreexcitingC.themoreexcitingD.themostexciting2.Mybrotheris_____moreoutgoingthanme.A.manyB.littleC.muchD.very【解析】选C。考查much的特殊用法。句意：我弟弟比我外向多了。此句含比较级，可以用much修饰比较级表示“比……多了”，many，little，very都不能修饰比较级。故选C。3.JimisthetalleststudentinourclassandTomisthesecond______one.A.tallB.tallerC.tallestD.eventaller【解析】选C。考查形容词的最高级。句意：Jim是我们班个子最高的学生，Tom是我们班个子第二高的。由比较的范围inourclass及thesecond来看应该用最高级。故C正确。4.Whichcityis______,Beijing,ShanghaiorFuzhou?A.beautifulB.morebea