小学英语比较级讲练ppt课件

形容词有三个比较等级：原级、比较级和最高级,原级表示的是“等于”常用:asas表示e.g.Iamastallasmytwinsister.Mikeisascleverashistwinbrother.Mr.Blackisasoldasme.这种句式的否定句可以用”notasas”来表示，也可“notsoas”来表示。e.g.Imnotsotallasmytwinsister.Mr.Blackisntsooldasme.,1,形容词的比较级的构成：,1.一般情况：词尾+er词尾+esttalltallertallestcleancleanercleanestclevercleverercleverest,2.以e结尾的单词：词尾+rnicenicernicestcutecutercutestlarge(大的)largerlargestsafe(安全的)safersafest,形容词的最高级的构成：,2,3.以“辅音字母+y”结尾的词:去y变i+er去y变i+estheavyheavierheavisteasyeasiereasiesthappyhappierhappiest,4.以重读闭音节结尾的形容词（辅+元+辅），双写词尾+er双写词尾+estbigbiggerbiggesthothotterhottestthinthinnerthinnest,3,5.多音节的形容词，比较级：more+形容词最高级：most+形容词beautifulmorebeautifulmostbeautifulexpensivemoreexpensivemostexpensiveinterestingmoreinterestingmostinteresting,4,不规则变化：原级比较级最高级good/well（好）betterbestbad/ill（坏）worseworstmany/much（多）moremostlittle/few（少）lessleastold（老）older/elderoldest/eldestfar（远）farther/furtherfarthest/further,5,写出下列单词的比较级和最高级safecoldwarmwet(湿的)busymaddifficultactivefastslowdangerous(危险的)interesting(有趣的)manygood,6,写同义句：1.MikeistallerthanZhangPeng.2.MikeistallerandstrongerthanZhangPeng.3.Thebrownmonkeystailislongerthantheyellowmonkeys.4.Thisdogsheadisbiggerthanthatones.,ZhangPengisshorterthanMike.,Thatdogsheadissmallerthanthisones.,7,在比较级的前面，可以用上much(得多)even(甚至)alittle(一点)等词来修饰，表示“程度更”e.g.MikeisalittletallerthanBill.Myplantismuchtallerandstrongerthanyours.Thisflowerisevenmorebeautifulthanthatone.,在最高级的前面，我们常常要加上the,表示在三个或更多的人或事物的比较结果“the形容词的最高级+比较范围”ChenJiaweiisthetallestboyinourclass.ChenYangisthestrongestboyinourclass.,8,用横线划出短文中的形容词。并写出它们的比较级。Itsahotday.Thereisathindoginaquietstreet.Atallboysaystothedog.“Comehere,gooddog.Illgiveyousomedeliciousbread.”,hotter,thinner,quieter,taller,better,moredelicious,9,Mycoffeeisas_(nice)asthecoffeemymothermakes.2.Mycoffeeis_(nice)thanyours.3.Shanghaiis_(