1、形容詞、副詞的比較級和最高級的用法：當(dāng)兩種物體之間相互比較時，我們要用形容詞或副詞的比較級；當(dāng)相互比較的物體是三個或三個以上時，我們就要用形容詞或副詞的最高級。形容詞、副詞的比較級和最高級的變化規(guī)律：單音節(jié)形容詞或副詞后面直接加-er或-esttalltallertallestfastfasterfastest以-e結(jié)尾的單音節(jié)形容詞或副詞直接加-r或-stlargelargerlargestnicenicernicest以-y結(jié)尾的形容詞或副詞，改-y為-i再加-er或-estbusybusierbusiestearlyearlierearliest形容詞或副詞是重讀閉音節(jié)時，雙寫最后的輔音

2、字母，再加-er或-esthothotterhottestbigbiggerbiggest多音節(jié)形容詞或副詞前面直接加more或mostdeliciousmoredeliciousmostdeliciousbeautifulmorebeautifulmostbeautiful不規(guī)則變化good（well）betterbestbad（badly）worseworst形容詞、副詞的比較級和最高級的句子公式：比較級形容詞物體A+am/are/is+形比+than+物體B.Iamtallerthanyou.Pastaismoredeliciousthanpizza.副詞物體A+行為動詞+副比+than

3、+物體B.Cheetahsrunfasterthangoats.Hestudiesbetterthanme.最高級1）物體A+am/are/is+the+形最高級+比較范圍（of+人/物，in+地方）.Iamthetallestintheclass.Pastaisthemostdeliciousfoodofthethree.2）物體A+行為動詞+副詞最高級+比較范圍（of+人/物，in+地方）.Cheetahsrunfastestintheworld.Hestudiesbestofus.詞形變換。比較級最高級largefasteasy比較級最高級wetgoodimportantwellbadm

4、anylittlefarstrongpatientsafeexpensive選擇填空。Birdscanfly,eaglescanflythanbirds.Theyflyintheworld.(high,higher,highest)Iamthanmybrother,butmylittlesisteristheofus.(fat,fatter,fattest)Whichcanswim,fishorsharks?(well,better,best)Thegreenbookisabook,buttheredoneismuchthanthegreenone.Itsthebookinthebooksho

5、p.(nice,nicer,nicest)Lookatthatboy,heisrunning(fast,faster).Ithinkthatbookis(good,better)foryou.Thenewlibraryhas(many,more)booksthantheoldone.Sallyis(tall,taller)thanhercousin.Ourschoolismuch(large,larger)thanyours.Look,Janetisjumping(high,higher)thanMike.11MrHarerunsmuch(fast,faster)thanMrTurtle.Mr

6、Hareneedntrun(fast,faster)now.Inthegym,Tommyisplayingtabletennis(well,better)thanJimmy.Thisbookisvery(interesting,moreinteresting),butthatoneis(interesting,moreinteresting)thanit.Thefilmisthe(horrible,morehorrible,mosthorrible)filmofall.Itssummernow.Theweatherisgetting.(hotandhot,hotterandhotter,hot

7、testandhottest)TheU.S.A.isoneof(richer,mostrich,therichest)countriesintheworld.用所給單詞的適當(dāng)形式填空。Myschoolis,butTomsschoolisthanmine.AndSallysschoolisthe.(small)Rabbitscanrun,buttigerscanrunthanrabbits,andcheetahscanrunofthethree.(fast)Pigis,butdeeristhanpig,andelephantisthe(heavy)Im,butsheisthanme.(beautiful)Everydayis.ButtodayisthedayIhaveeverhad.(b