外研版初中英语八年级上册教学课件4Unit 3 Language in useThe Comparative Superlative Degrees of Adjectives&Adverbs总 结 形容词和副词形容词和副词比较级和最高级比较级和最高级late later-latestearly earlier earliestbigbigger-biggestfluently/difficultmore,most重读闭音节、末尾只有一个重读闭音节、末尾只有一个重读闭音节、末尾只有一个重读闭音节、末尾只有一个辅音字母双写加辅音字母双写加辅音字母双写加辅音字母双写加 er er 或或或或 estest单音节词在词尾比较级单音节词在词尾比较级加加-er或最高级加或最高级加-est以以e结尾的词，只需加结尾的词，只需加r 或或st以辅音字母加以辅音字母加以辅音字母加以辅音字母加 y y 结尾双音节结尾双音节结尾双音节结尾双音节词变词变词变词变 y y 为为为为 i i 加加加加 er er 或或或或 estest部分双音节和多音节词在原部分双音节和多音节词在原部分双音节和多音节词在原部分双音节和多音节词在原级前加级前加级前加级前加 more more 或或或或 mostmost少数以少数以er,ow 结尾的双音结尾的双音节词加节词加-er-esttalltaller-tallest clevercleverer-cleverestcheap,cold,small,warm,young,highfine,nice,safehappy,busy,dirty,easy,lazy,prettyfat,hot,red,thin,wet,sad narrow,yellow quickly,slowly,useful,careful,popular,modern,形容词和副词比较级和最高级构成形容词和副词比较级和最高级构成形容词和副词比较级和最高级构成形容词和副词比较级和最高级构成 (规则变化规则变化规则变化规则变化)不规则变化不规则变化 good/well better-best much/many more-most bad/badly/ill worse worst little less least far farther/further farthest furthest old older/elder oldest/eldest形容词和副词比较级的用法形容词和副词比较级的用法 1.Who runs faster,he or she?2.He runs faster than she.3.He runs much faster than she.4.He becomes healthier and healthier.5.The more you exercise,the healthier you will be.6.She is less healthy than he.1.表示两者之表示两者之间间的的选择选择,可用可用“Which/Who +比比较较，or?”.2.2.表示两者之表示两者之表示两者之表示两者之间间间间的比的比的比的比较较较较，通常用，通常用，通常用，通常用连词连词连词连词 than than 引引引引导导导导，表示表示表示表示“更更更更一些一些一些一些”3.much/far/a lot,even,still,a little/a bit 修修饰饰比比较级较级,表示程度表示程度.Who runs faster,he or she?He runs faster than she.He runs much faster than she.4.“比比较级较级+and+比比较级较级”表示表示“越来越越来越”5.“the+比比较级较级,the+比比较级较级”表示表示“越越,越越”6.表示不及另一方表示不及另一方时时，用，用“less+原原级级+than”(双音双音节节和多音和多音节词节词)He becomes healthier and healthier.The more you exercise,the healthier you will be.She is less healthy than he.He is healthier than she.Shanghai is becoming more and more modern.Pair Work:A:Who/Which is,or?Who writes/speaks/works.?B:B:is/writes/speaks much/a little/eventhan1.比较级比较级+and+比较级比较级 越来越越来越2.the+比较级比较级,the+比较级比较级 越越,越越 3._you are,_mistakes you will make.(你越仔细，做错的题目就越少）4._you eat,_youll be.(你吃得越多,就越胖)5.Alice writes well.Mary writes _ than she.(甚至更好）The more carefulthe fewerThe morethe fatter1.The girl becomes _.(越来越漂亮）more and more beautiful2.The weather is getting _.(越来越槽糕）worse and worseeven/still better1.表示三者或三者以上比表示三者或三者以上比较较,可用可用”Which/Who +最高最高级级,or?”表示表示.2.最高最高级级+of/among(同同类类比比较较)in(范范围围比比较较)4.one of+形容形容词词最高最高级级+名名词词复数表示复数表示“最最 之一之一”3.序数序数词词修修饰饰最高最高级级形容词和副词的最高级的用法形容词和副词的最高级的用法Who is the tallest,Tom,Mike,or Jack?Tom is the tallest of the three.Mike is the second tallest student in our class.Jack is one of the tallest students in our class.Tom runs(the)fastest in our class.plays/sings/acts/runs.one of the actors/runners the second/the thirdYao Ming 2.26mJacken Chen 1.71mJay 1.73mLiu Xiang 1.88m 3.Lin Tao is _ in the class because he never gets to school on time.（最（最懒懒的学生之一）的学生之一）4.Edison was_ in the world.(最最伟伟大的大的发发明家之一）明家之一）one of the laziest studentsone of the greatest inventors1.The Yangtze River is_ river in the world.(第三第三长长河）河）the third longest2.The Atlantic is _ ocean in the world.(第二大洋）第二大洋）the second biggestExercise:一、翻译句子：一、翻译句子：二、同义句转换二、同义句转换 1.Flat A is more expensive than Flat B Flat B is _ _ than Flat A.Flat B is _ _ Flat A.Flat B is not _ _ _ Flat A.2.I prefer maths to English.I like maths _ English.better than3.He is the tallest student in the class.He is _ in the class.taller than any other studentany other+名名词单词单数数lessexpensivecheaperthanasexpensiveas 1.Hainan is a very large Island.It is the second _ island in china.(large)2.Our teacher is as _ as before.(Our teacher is as _ as before.(busy).).3.He is _ among us.(3.He is _ among us.(careful)4.Li Lei jumped far _ than Jim.(far)4.Li Lei jumped far _ than Jim.(far)5.The busier he is,the _ he feels.(5.The busier he is,the _ he feels.(happy)6.I think Yao Ming is one of _ basketball players in NBA.(hot)busythe most carefulfartherhappierlargestthe hottest三、完成句子三、完成句子Language practiceIts the most comfortable way,but its also the most expensive.He lives the farthest from school.It is the fastest and the second cheapest.The more information,the better.1 Complete the sentences with the correct form of the words in brackets.1 This bus takes the (long)time because it is the _(slow).2 The new train travels the (fast)of all the trains in the world.3 The (cheap)way to get there is by coach.4 I am in a hurry.What is the (fast)way to get there?5 The fastest way to travel is by plane,but it is also the _(expensive).longestslowestfastestcheapestfastestmost expensivea)By plane,but you have to go to the airport by taxi and that takes time too.b)The cheapest way is going by coach,but it is not very comfortable.c)The most comfortable way is going by train,but it takes more time than going by plane.d)There are three ways:by plane,by train and by coach.2 Complete the conversation with the sentences with the sentences in the box.Customer:How can I get to Beijing from here?Tourist guide:_ Customer:Which is t