英语人教版八年级下册unit 71a 2d.pptx

Unit7What sthehighestmountainintheworld SectionA What sthehighestmountainintheworld What sthelargestdesertintheworld What sthelongestriverintheworld Doyouknowtheseinterestingplaces Qomolangma Qomolangmarunsalongtheborder 边界 betweenChinaandNepal Itiscoveredwithsnowalltheyearround It s8 844 43high thehighestintheworld It s26kilometerslong z HowhighisQomolangma It s8 844 43metershigh TheheightofQomolangmais8 844 43meters Thehighestmountainintheworldis8 844 43metershigh TheNileisthelongestriverintheworld It smorethan6 600kilometerslong Itrunsthrough9countries it soneofthelargestriverflowsthroughtheinternationalstatesintheworldandrunsintotheMediterraneanSea 地中海 intheend TheNile TheNile thelongestriver TheCaspianSea TheCaspianSeaisthebiggestlakeintheworld ItliesintheborderbetweenAsiaandEurope Thebiggestdesertintheworld theSahara HowbigistheSahara 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 1bListenandcompletethesentences 1 Qomolangmais thananyothermountainintheworld 2 TheSaharais desertintheworld 3 TheCaspianSeais ofallthesaltlakes 4 TheNileis riverintheworld higher thebiggest thebiggest thelongest TheYangtzeRiverisabout kilometerslongandtheYellowRiveris kilometerslong Chinahasthebiggestpopulationintheworld It salotbiggerthanthepopulationoftheUS Chinaisover yearsold IthasamuchlongerhistorythantheUS TheUSisnoteven yearsold ChinaisalmostasbigastheUS butitisthebiggestcountryinAsia 2aListenandnumberthefacts 1 4 intheorderyouhearthem 1 4 3 2 2bListenagainandfillintheblanksin2awiththenumbersinthebox 1TheYangtzeRiverisabout kilometerslongandtheYellowRiveris kilometerslong 4Chinahasthebiggestpopulationintheworld It salotbiggerthanthepopulationoftheUS 3Chinaisover yearsold IthasamuchlongerhistorythantheUS TheUSisnoteven yearsold 2ChinaisalmostasbigastheUS butitisthebiggestcountryinAsia 6 300 5 464 5 000 300 2cMakeconversationsusingtheinformationin2a DidyouknowthatChinaisoneoftheoldestcountriesintheworld Yes Idid It smucholderthanmycountry 2dRole playtheconversation theirpartofthecountry 3aReadthearticleandmatcheachparagraphwiththemainideas Paragraph1SpiritofclimbersParagraph2AchievementsofclimbersParagraph3Factsanddangers 3bReadthearticleagainandcompletethechart snow freezingweatherconditionsandheavystorms 1960 thefirstChineseteam1975 thefirstwoman thepopularplacesthehighestmountainthemostfamous 3cAnswerthequestionsusinginformationfromthearticle 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highstrongfastslow higherhighest strongerstrongest fasterfastest slowerslowest 以字母e结尾的词 加 r或 st原级比较级最高级finecutelarge finerfinest cutercutest largerlargest 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easyluckyearly easiereasiest luckierluckiest earlierearliest 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deliciousinterestingeasilycarefully moredeliciousmostdelicious moreinterestingmostinteresting moreeasilymosteasily morecarefullymostcarefully betterbest worseworst moremost lessleast fartherfarthestfurtherfurthest 不规则变化 原级比较级最高级good wellbad badlymany muchlittlefar I 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 themostexciting 2 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 morebeautifulC themostbeautifulD mostbeautiful 解析 选C 考查形容词的最高级 句意 哪一座城市最美 北京 上海还是福州 此为三者比较 应该用最高级 根据句意 知选C 5 Mobilephonesareverypopularnowandtheyare thanbefore A cheapB cheaperC thecheapestD thecheaper 解析 选B 考查形容词的比较等级 句意 现在手机很流行了 并且比以前便宜了 根据标志词than可知此句应该用比较级 故选B younger newer heavier theheaviest higher thehighest older younger theyoungest theoldest II Finishthesentenceswiththerightformsoftheadjs 1 Kateisyoung butJoeis 2 Myshoesarenew Mysister sare thanmine 3 Herbagisheavy andhisis thanhers Butyoursis ofall 4 Tom skiteishigh Jim sis thanTom s Mike sis ofthemall 5 Billisseven JohnisnineandTomiseleven Tomis thanJohnandBill Billis thanJohn Billis andTomis ofthethree hungry hungrier thenicest heavier heaviest hard harder thehardest better III Completethesentenceswiththerightformsofthewords 1 Jimisvery LiLeiis thanJim hungry 2 Kate smooncakesare ofall nice 3 Yourboxis thanmine Buthisisthe ofthethree heavy 4 Unit2isquite Unit3is thanUnit2 It s inModule1 hard 5 ThisTVplayis thanthatone good busy thebusiest earlier best far important themostbeautiful worse 6 Mymotherisvery Sheis inmyfamily busy 7 Linglinggetstoschool thantheothers early 8 ShespeaksEnglish inourclass well 9 Lucyjumpedquite far 10 IthinkEnglishisas asChinese important 11 Thispictureis ofthefour beautiful 12 Lucydid thanLily bad TheYellowRiverislong TheYangtzeRive