译林版英语八年级上册Unit 1 Friends_课件.ppt

Unit1FriendsGrammar

worseadj.（bad的比较级）更差，更糟，更坏worstadj.（bad的最高级）最差，最糟，最坏heightn.高，高度weightn.重量sec.abbr.(=second)秒competitionn.竞赛，比赛，竞争testn.测试，考查swimmern.游泳者Newwords[w?:s][w?:st][ha?t]?[we?t][?k?mp??t??n]

1.Thebikeis_____.2.Thecaris______.3.Theplaneis_________.fastfastfasterthefastest

fast–faster–fastestadjectivescomparativessuperlativesshortlongshortershortestlongerlongesttall,smart,slow,etc.①在大多数短形容词词尾加er变成比较级，加est变成最高级。

BeijingislargerthanHangzhou.Whichcityislarger,HangzhouorBeijing?2.Abe+比较级thanB.1.Which…be+比较级,AorB?large

large–larger–largestnicelatefinenicernicestlaterlatestfinerfinest②以字母e结尾的短形容词，只加r或st变成比较级或最高级

3.Theblackandwhitedogis___________.1.Thewhitedogis_______.happy2.Theyellowdogis_______.happyhappierthehappiest

happy–happier–happiestheavyprettyheavierheaviestbusy,lazy,etc.prettierprettiest③以辅音字母加y结尾的短形容词，先把y变成i再加er或est.

Thefirstpigis_____.Thethirdoneis_________.Thesecondpigis_____.fatterfatfatthefattest

fat–fatter–fattestthinslimthinnerthinnestslimmerslimmestbig,hot,wet,etc.④一个原音字母加一个辅音字母结尾的，并且是重读闭音节结尾的短形容词，双写这个辅音字母，再加er或est

beautifulHangzhouismorebeautifulthanShanghai.Whichcityismorebeautiful,HangzhouorShanghai?1.Which…be+比较级,AorB?2.Abe+比较级thanB.

beautiful–morebeautiful–mostbeautifulinterestingfriendlymoreinterestingmostinterestingmorefriendlymostfriendlyhelpful,generous,polite,etc.⑤在长形容词前加more变成比较级，加most变成最高级。

句型结构comparatives(比较级):superlatives(最高级):1.Sth.bethe+最高级+范围(in…/of…).2.Which…bethe+最高级,A,BorC?1.Abe+比较级thanB.2.Which…be+比较级,AorB?

构成方法原级比较级最高级longfewcheaplongerfewercheaperlongestfewestcheapestnicesafelatenicersaferlaternicestsafestlatestbighotthinbiggerhotterthinnerbiggesthottestthinnestprettyun