八年级英语上U4Ttisa课件仁爱版.ppt

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1、Unit4OurWorldTopic1Plantsandanimalsareimportantforus.SectionA单音节及部分双音节形容词比较级（-er）和最高级（-est）的规则变化。1一般在词尾直接加er/est:tall—taller—tallest2以e结尾的单词去e加er/est:wide—wider—widest3以辅音字母加y结尾的单词，把y改成i,再加er/est:busy—busier—busiest4以重读闭音节结尾，且末尾只有一个辅音字母的单词，双写末尾的辅音字母，再加er/est:big—bigger—biggest(fat,thin,re

2、d,hot)单音节及部分双音节形容词比较级（-er）和最高级（-est）的规则变化。AdjectivestrongtallnicebravecomparativestrongernicersuperlativestrongestnicestAdjectivebigfatthinlazyuglycomparativebiggerlaziersuperlativebiggestlaziestthinnerthinnestuglierugliestfattertallertallestbraverbravestfattest2bWorkalone注意：最高级要在前面+theAn

3、imalscowhorsehensheepsomesheepgoosesomegeesemousesomemicesmallbigThemicearesmallerthanthehens.Thehensaresmallerthanthegeese.Themicearethesmallestofall.<<>>Thehensarebiggerthanthemice.Thegeesearebiggerthanthehens.Thegeesearethebiggestofall.smallbigthinTheducksarealittlethinnerthanthegeese.

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5、nthecountryside.Theairisdirty.Theriverisdirty.cityThebuildingsaretall.Theroadsarewide.Thetrafficisbusy.It’snoisyinthecity.Theairinthecountrysideis______Theskyinthecountrysideis______Theriverinthecountrysideis______Thetreesinthecountrysideare_______thanthoseinthecity.It’s________inthecount

6、rysidethaninthecity.thanthatinthecity.greenerquieterfresherbluerclearer1aLook,listenandsayWheredoesWangWeiliketolivebetter,acountrysideoracity?Listenandfillintheblankswiththecorrectwordsaccordingto1a.HowdoesWangWeithinkofthecountryside?WhataboutMichael?WangWeigoesthereforhissummervacation

7、everyyear.WangWeilikesthecountrysideverymuch.Hethinkstheairis_________,theskyis_______andtherearealso_________treesand________riversthere.fresherbluergreenerclearerquieterMichaelthinksitis__________,too.Andpeoplecanenjoy_______there.nature3Let'schant!Thanksforlisten