比较级的使用方法.ppt

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1、Unit4OurWorldTopic1What'sthestrongestanimalonthefarm?SectionAasheepsomesheepWhatcanweseeinthecountryside?agoosesomegeeseWhatcanweseeinthecountryside?amousesomemiceWhatcanweseeinthecountryside?1bListento1aandcheckthewordsyouhear._____fresher_____busier_____bluer_____talle

2、r_____bigger_____clearer_____nicer_____quieter_____noisierNow,lookatthepicturesandsaysomethingaboutthecountrysideandthecity.录音1a-P81WangWeilikesthecountrysideverymuchbecausehethinkstheairis_________,theskyis_______andtheriversare________there.Michaelthinksthecountrysidei

3、smuch________thanthecity,too,sopeoplecanenjoythebeautiesofnature.WangWeigoestothecountrysideeveryyearforhissummerholiday.fresherbluerclearerquieterListenagainandfillintheblanks.Thenreaditaloud.所填单词有什么特点？Answersto2a:tallerstrongershorternicercuterbetterLet’stalkabouttheot

4、heranimalsonthefarm.countrysideTheairisfresh.Theskyisblue.Thetreesaregreen.Theriverisclear.It’squietinthecountryside.Theairisdirty.Theriverisdirty.cityThebuildingsaretall.Theroadsarewide.Thetrafficisbusy.It’snoisyinthecity.Theairinthecountrysideis______Theskyinthecountry

5、sideis______Theriverinthecountrysideis______Thetreesinthecountrysideare_______thanthoseinthecity.It’s________inthecountrysidethaninthecity.thanthatinthecity.greenerquieterfresherbluerclearer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。AdjectivestrongtallnicebraveComparativestron

6、gernicerSuperlativestrongestnicestAdjectivebigfatthinlazyuglyComparativebiggerlazierSuperlativebiggestlaziest下列形容词比较级和最高级变化有什么规律？2b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:bu

7、sy—busier—busiest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,red,hot)重读闭音节：1）一个元音字母+一个或几个辅音字母2）元音字母不发本音3）以一个辅音字母结尾5.多音节词前加more,most:beautiful-morebeautiful-mostbeautiful.含一个元音的词叫作单音节词，含两个或两个以上元音的单词叫作双音节或多音节词。：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

8、化。AdjectivestrongtallnicebraveComparativestrongernicerSuperlativestrongestnicestAdjectivebigfatthinlazy