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1、9AUnit4Grammar形容词和副词的比较级和最高级I.形容词和副词的比较级和最高级的构成:英语中形容词和副词有原级、比较级和最高级。比较级表示“更…”或“较…”的意思。最高级表示“最…”的意思。练一练4:(写出下列形容词和副词的比较级和最高级)1)普通形容词:1,cool_______________2,slow________________3,nice__________________4,free________________5,clever____________________2)词尾是y的:1,early________________2,
2、dirty________________3,healthy____________________3)重读闭音节的:1,red__________________2,glad__________________3,thin____________________4)部分双音节和多音节的:1,active_________________________2,exciting_____________________________12,serious________________________13,beautiful____________________
3、_________5)形容词+ly构成的副词:1.slowly____________________2.quickly____________________6)不规则变化:(必须反复默写,以便牢记)1,bad____________________2,badly__________________3,ill_________________4,many____________________5,much____________________6,little________________7,good____________________8,well__
4、__________________9,far__________________提示:1.单音节和少数双音节单词的比较级和最高级的构成:1)一般在词尾+er,+est:例:tall,taller,tallestlong,longer,longest2)词尾e+r,+st:例:large,larger,largestbrave,braver,bravest3)词尾是重读闭音节的单词,词尾辅音字母双写+er,+est:例:thin,thinner,thinnest4)词尾是辅音字母+y的单词,y变I,再+er,+est:例:early,earlier,earli
5、est2.多音节词和部分双音节词的比较级和最高级的构成:在原级前+more,+most例:useful,moreuseful,mostusefuldifficult,moredifficult,mostdifficultII.形容词和副词的比较级和最高级的九种句型:1.A>B或A6、__________________Room103.(small)2.A>B>C或A
7、erinChina.(long)3.A=B:(A和B一样…)egTomisasoldasJack.1)Undergroundtrainsrun____________________trainsabovetheground.(fast)2)LiuMeispeaksEnglish_______________________LiMing.(well)3)ThisExerciseis__________________________thatone.(easy)4.A≠B:(A不如B…)egTomisn’tsooldasJack.1)Ourclassroomisn
8、’t_________________