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Unit9Thisbirdisbiggerthanthefirstone.•one•two•three•four•five•first•second•third•fourth•fifth•基变序有规律，词尾要加th；•一、二、三特殊记，结尾字母t,d,d；•八去t,九去e，ve要用f替；•几十y结尾，把y改成i，th前有个e；•几十几，几百几十几，只变个位就可以。比如：five（fifth）twelve（twelfth）forty（fortieth）nine（ninth）eight（eighth）biggerandbiggersmallerandsmallerCanyousaytheseinEnglish?1声音越来越大2声音越来越弱3越来越高4越来越长5越来越胖6越来越瘦1.louderandlouder2.softerandsofter3.tallerandtaller4.longerandlonger5.fatterandfatter6.thinnerandthinnertallertallYaoMingistallerthanLiuXiang.shortershortlonglongerJourneytotheWestfatfatterZhuBajieisfatterthanShaSeng.thinnerthinMonkeyKingisthinnerthanTangSeng.bigbiggerbiggestThesecondbirdisbiggerthanthefirstone.Thethirdbirdisthebiggest.smallsmallersmallestThesecondbookissmallerthanthefirstone.Thethirdbookisthesmallest.shortshortershortestTomDongdongPeterPeter’shairisshorterthanTom’shair.Dongdong’shairistheshortest.long•Thesecondmonkey'stailislongerthanthefirstone's.•Thethirdmonkey'stailisthelongest.longestlongertalltallesttallerMrWangMrLiMrZhangMrLiistallerthanMrWang.MrZhangisthetallest.PartDLet’sRead•Step1:ReadandchooseA.Thestoryisaboutthreebigbirds.B.Thestoryisaboutthreesmallbirds.C.Thestoryisaboutthreebigbirdsandthreesmallbirds.•Bigbirds:___________________•Smallbirds:____________________Step2:ReadandfindPartDLet’sRead•Step3:Readandjudge1.BakersanglouderthanBob.2.JuliawassmallerthanJudy.3.Thesixbirdscouldnotsingverywell.4.Julia'ssingingwasbetterthanJane's.5.Peoplethoughtthatthesixsingersintheforestwerethebest.1.Whatdidthebirdsdecidetodo?2.Whatdidthepeoplesay?Step4:ReadandtakenotesHecanrun.Hecanrunfast.jumphighTherabbitcanjumphigh.jumpfarThekangaroocanjumpfar.swimfastThefishcanswimfast.flyhighThebirdcanflyhigh.Run,run,Icanrun.Icanrunfast.Jump,jump,Icanjump.Icanjumphigh.Swim,swim,Icanswim.Icanswimfast.Fly,fly,Icanfly.Icanflyhigh.Petercanjumphigh.Hecanjumphigh.Icanrunfast.Icanjumpfar.Icanswimfast.Linglingcanrunfast.Annecanjumpfar.Dongdongcanswimfast.bigfatyoungshortlightoldsmalltallthinheavyBigHeadSonSmallHeadFatherThesonisshort.Thefatheristall.B.Thefatheristallerthantheson.A.Thesonisshorterthanthefather.Theson’sheadisbig.Thefather’sheadissmall.B.Thefather’sheadissmallerthantheson’s.A.Theson'sheadisbiggerthanthefather's.Thesonisfat.Thefatheristhin.B.Thefatheristhinnerthantheson.A.Thesonisfatterthanthefather.Thesonislight.Thefatherisheavy.B.Thefatherisheavierthantheson.A.Thesonislighterthanthefather.形容词比较级句型：is/are+形容词比较级+thanBJohnisthinnerthanAlan.AlanisfatterthanJohn.引入1.名词的变化:单数变复数Eg:apple--apples2.动词的变化(1)原形play(2)现在分词playing(3)第三人称单数plays(4)过去式played我们所学过的形容词big----smalllong---shorttall---shortwarm---coolhot---coldyoung---oldfat----thinheavy---lightstong---weak形容词的比较级1.含义：表示两者(人或事物)的比较2.用于：的句子中3.翻译：“”3.形容词比较级的变化规则(1)一般在词尾+er:strong—stronger(更强壮的)(2)重读闭音节单词(一个元音字母+一个辅音字母结尾的单词）变比较级时要双写辅音字母，再+er:big—bigger(更大的)hot---hotter(更热的)thin---thinner(更瘦的)fat---fatter(更胖的)(3)辅音字母+y字母结尾的单词，变比较级时把y变i,再加er:happy----happier(更高兴的、更幸福的)heavy----heavier(更重的)（4）不规则比较级•不规则的变形只能靠记住•good好—better更好---best（最好的）•many多—more更多---most（最多的）•little少—less更少---least（最少的）Let’schant!bigbigbiggersmallsmallsmallertalltalltallershortshortshorterfatfatfatterthinthinthinnerlightlightlighterheavyheavyheavieroldoldolderyoungyoungyoungerstrongstrongstrongerohyeahThankyou!Goodbye!