unit3形容词副词比较级和最高级课件.ppt

1、一、规则变化：一、规则变化：1、一般直接在词尾加er;est talltaller-tallest lightlighter-lightest 2、以字母e结尾的直接加r;nicenicernicest finefinerfinest 3、以辅音字母加y结尾的形容词，要变y为i再加er;est heavyheavierheaviest busybusier-busiest4、以重读闭音节结尾且末尾只有一个辅音字母的形容词，要双写末尾的辅音字母再加er;est thinthinner-thinnesthothotterhottest bigbiggerbiggest5、多音节形容词或部分双音节形

2、容词变比较级在前面加more,beautifulmore beautiful importantmore important6、以ly结尾的副词，比较级在原型前加more easily-more easily两个两个形容词形容词early和和friendly除外除外 earlyearlier friendlyfriendlier/more friendly二、不规则形容词的比较级最高级二、不规则形容词的比较级最高级原 级比 较 级最 高 级good/wellbetterbestmany/muchmoremostlittlelessleastill/bad/badlyworseworstfarf

3、arther/furtherfarthest/furtheroldolder/elderoldest/eldest注：older 一般指年龄大小；My father is older than my mother.elder指长幼关系(一般修饰名词作定语);My elder brother is a driver.farther指距离更远；further指抽像的.I want to study English further.further reading1.long 2.large3.hot4.easy5.good 6.happy7.big8.slowly longer larger hot

4、ter easier better happier bigger more slowly写出下列形容词和副词的比写出下列形容词和副词的比较级较级9.important10.bad11.well12.useful13.few14.hard15.much more important worse bettermore useful fewer harder moreadj.adv.比较级、最高级的构成比较级、最高级的构成 P93happyeasilyhardlargethinlittlemanybadlyhappiermore easilyharderlargerthinnerlessmorewo

5、rse比较级的用法比较级的用法 1、两者之间的比较，句中有明显的标志词明显的标志词thanTom is taller than John2、Which/Who is+比较级比较级,A or B?Which is easier,maths or English?3、能修饰比较级的副词及短语：much(的多的多)、even(更更)、still（还是（还是的多）、的多）、a little(一点点一点点)、a lot（的多）的多）.a bit（一点点）（一点点）This city is much more beautiful than that oneToday is even hotter than

6、 yesterday.比较级的特殊用法比较级的特殊用法1.the+比较级比较级+of the two/twins(双胞胎）双胞胎）两者中较两者中较的一个的一个He is _(old)of the two boys.the olderLucy is _(clever)of the two girls.the cleverer注意前面要加上比较级前要加注意前面要加上比较级前要加the2.the+比较级，比较级，the比较级比较级 越越就就越越你越粗心，犯的错误就越多。你越粗心，犯的错误就越多。The _ you are,the _ mistakes you will make.more carel

7、essmore3.比较级比较级+and+比较级比较级 越来越越来越当形容词或副词为当形容词或副词为多音节多音节时，必须用时，必须用more and more+原级原级The population is growing _.越来越快越来越快 faster and fasterThe city has become(越来越漂亮越来越漂亮)_.more and more beautifulThe more you eat,the fatter you will become4.表示表示“大大3岁岁”，“长长2米米”时，要用时，要用He is _ than I.他比我大三岁。他比我大三岁。three

8、years olderThe bridge is _ than that one.这条桥比那条长两米。这条桥比那条长两米。two meters longer5.在比较级中，用在比较级中，用that代替上述出现过的代替上述出现过的不可数名词不可数名词，用，用those代替上述出现过的代替上述出现过的复数名词。复数名词。The water in the glass is cleaner than _ in the river.杯子里的水比河里的要干净。杯子里的水比河里的要干净。I like these pictures better than _ on the wall.和墙上的画相比，我更喜欢这

9、些。和墙上的画相比，我更喜欢这些。thatthose原级的用法1、very、so、quite、too修饰原级2、as as“和一样”中间用原级English is as important as math.The question is not as/so difficult as that one.3、not as/so+原级+as“和不一样”“不如”English is not as/so important as math.我和你一样大。我和你一样大。I am _ you.他跑得不及我快。他跑得不及我快。He _ run _ I.as old asdoesntas/so fast as原

10、级、比较级、最高级互换原级、比较级、最高级互换倍数倍数asas=倍数比较级倍数比较级than这本书比那本厚这本书比那本厚2倍。倍。This book is _ as that one.The book is _ than that one.three times as thicktwice thicker 3.同一范围内物体比同一范围内物体比较时，句子主语较时，句子主语。He studies harder than any student in his class.(T or F)otherHe studies harder than all the students in his class

11、.(T or F)otherHe studies harder than anyone in his class.(T or F)elseThe moon is closer to us than _ star/stars.(any,any other)anyChina is larger than _ country in Africa.(any,any other)anyChina is larger than _ countries in Asia.(the,the other)the other用括号内形容词和副词的适当形式填空用括号内形容词和副词的适当形式填空1.Jack isnt

12、so _(clever)as John.2.Tom works as _(hard)as Mary.4.Its _(hot)today than yesterday.5.This park looks much _(good)than that one.cleaver hard hotter better Li Fen draws better of the two girls.the better 9.Its more bigger than a chicken.10.He is younger of the two.11.My classroom is bigger than you.12

13、.The girl is very taller.much the youngeryourstall改错改错:1.His computer is cheaper than I.2.Jim is very older than his sister.I minemuchvery改错改错:1.His computer is cheaper than I.2.Bill is taller than any boy in his class.3.Mary sings better than any other boy in her class.4.Jim is very older than his

14、sister.7.Li Fen draws better of the two girls.I mineany boy any other boyany boyany otherverymuch the betterboybetter9.Its more bigger than a chicken.10.He is younger of the two.11.My classroom is bigger than you.12.The girl is very taller.much the youngeryourstall2b:Tina is _ and _than Tara.Tina can run _and jump_than Tara.Tina is _than Tara.Tara gets up _ than Tina friendlierfunnierfasterhigherlazierearlier