外研英语八年级上册Module 4Unit3(共25张PPT).ppt

Li Leis box is heavy. Han Meimeis box is heavier than Li Leis. Jims box is the heaviest of all. The bee is flying fast. The bird is flying faster.The plane is flying the fastest.The green oranges are big.The orange ones are bigger.The red ones are the biggest of all. 250,000 RMB 50,000 RMBThe green car is the most expensive.The red car is more expensive than the bike.The bike is expensive.500 RMBcinemaBook storeSuper marketMy house5000 m4000m3000mSuper market is far from my home.The book store is farther from my home.The cinema is the farthest from my home.形容词和副词的比较级和最高级形容词和副词的比较级和最高级 形容词、形容词、副词比较副词比较级和最高级和最高级构成级构成词词 尾尾 变变 化化原级原级比较级比较级最高级最高级 hard fastlargebigthin dryearly单音节词在词尾加单音节词在词尾加-er(比较级比较级)或或-est(最高级最高级)以字母以字母e接尾接尾的词加的词加-r或或-st以重读闭音节结尾的词末尾只有以重读闭音节结尾的词末尾只有一个辅音字母应一个辅音字母应双写双写辅音字母再辅音字母再加加er或或est以辅音字母以辅音字母+y结尾的词结尾的词变变y为为i再再加加-er,或或-est你可以讲讲你可以讲讲吗？吗？一、单音节和、单音节和 部分双音节词部分双音节词harder hardestfaster fastest larger largestbigger biggestthinner thinnest drier driestearlier earliest 二、多音节词和、多音节词和 部分双音节词部分双音节词多音节词和部分双音节词在其前多音节词和部分双音节词在其前面加面加more more 和和 most most delicious seriouseasilymore delicious most deliciousmore serious most seriousmore easily most easily 原级原级good/wellbad/badlymany/much little far old 比较级比较级 最高级最高级better bestworseworstlessmore mostfarther较远较远further进一步进一步leastfarthest最远最远furthest最大程度最大程度三、不规则变化、不规则变化olderelderoldesteldest Birth: 1954,04,07Height: 1.73mWeight: 63kgBirth: 1961,09,27Height: 1.74mWeight: 64kgtallershorterheavierthinnerolderyoungertallestshortestoldestBirth: 1980,08,29Height: 1.745mWeight: 68kg形容词和副词有三个等级：形容词和副词有三个等级：原级原级比较级比较级最高级最高级 程度副词程度副词very, too, so, quite等修饰形容词等修饰形容词的原级的原级 The car is very cute.Betty writes quite carefully.Betty写得相写得相当认真当认真. as + adj./adv. +as 和和.一样一样 这个故事和那个故事一样有趣。这个故事和那个故事一样有趣。The story is _ that one. as interesting as 否定形式：否定形式： not as/so+adj./adv.+as 和和 不一样不一样这个问题不如那个问题难。这个问题不如那个问题难。The question is _ that one.not as/so difficult as This cake is _ that one.（两者之间）（两者之间）这个蛋糕比那个蛋糕好吃。这个蛋糕比那个蛋糕好吃。 A+谓语动词谓语动词+比较级比较级+than+B“A比比B”more delicious thanA+谓语动词谓语动词+倍数倍数/岁数岁数 +比较级比较级+than + B“A是是B的的倍倍”My brother is _ than me.This garden is _than that one.three years oldernine times bigger 我的哥哥比我大三岁。我的哥哥比我大三岁。这个花园是那个花园的这个花园是那个花园的9倍大。倍大。He is taller than any other boy in his family.A+谓语动词谓语动词+比较级比较级+than+ any other +单数名词单数名词“A比其他任何人或物都比其他任何人或物都” A+谓语动词谓语动词+the +比较级比较级+of the two“A是两者中较是两者中较.的的”Amy is the _ of the two.Davie is the _of the two.shortertaller 吃的越多，吃的越多，会变得越胖会变得越胖 _ you eat, _ you will be. the +比较级，比较级， the +比较级比较级越越， 越越。The morethe fatterThe more careful you are, the fewer mistakes you will make.你们越仔细，出的错越少。你们越仔细，出的错越少。夏天要到了，天变得越来越热了。夏天要到了，天变得越来越热了。Winter is coming and the days are getting _ . 我们学校变得越来越漂亮了。 比较级比较级+and+比较级或比较级或more and more+原级原级“越来越越来越.”hotter and hotterOur school is _.more and more beautiful(三者或三者以上三者或三者以上)上海是中国最大的城市上海是中国最大的城市.Shanghai is _ in China.主语主语+谓语动词谓语动词+ the+最高级最高级+(单数名词单数名词) + in/of短语短语 表示在某一范围内或某类人中最表示在某一范围内或某类人中最.the largest city(三者或三者以上三者或三者以上)英语是最有趣的科目之一。英语是最有趣的科目之一。English is one of _ of all the subjects.她是学校里最漂亮的女孩之一。她是学校里最漂亮的女孩之一。She is one of _ girls in the school.主语主语+谓语动词谓语动词+one of the+最高级最高级+复数名复数名词词+ in/of短语短语 “ .是最是最.之一之一”the most beautifulthe most interesting the+序数词序数词+最高级最高级+单数名词单数名词+in 短语短语 “在在中是第几个中是第几个”黄河是中国第二长河。黄河是中国第二长河。The Yellow River is _ river in China.中国是世界上第三大国家。中国是世界上第三大国家。China is _ country in the world.the second longestthe third largest