仁爱版八年级上课件：Unit-4-Topic-1-Section-A

Unit4OurWorldTopic1Whichdoyoulikebetter,plantsoranimals?SectionA学习目标学习单音节和部分双音节形容词比较级和最高级的构成和用法对城市和农村的环境进行比较cowcountrysiden.农村，乡下horsehen设疑自探：Whatcanweseeinthecountryside?sheepsomesheepWhatcanweseeinthecountryside?goosesomegeeseWhatcanweseeinthecountryside?mousesomemiceWhatcanweseeinthecountryside?

解疑合探:DoesWangWeilikethecountrysideorthecity?Now,watchtheflashof1a,andfindouttheanswer.视频1a-P811a1bListento1aandcheckthewordsyouhear._____fresher_____busier_____bluer_____taller_____bigger_____clearer

_____nicer_____quieter_____noisierNow,lookatthepicturesandsaysomethingaboutthecountrysideandthecity.录音1a-P81countrysideTheairisfresh.Theskyisblue.Thetreesaregreen.Theriverisclear.It’squietinthecountryside.Theairisdirty.Theriverisdirty.cityThebuildingsaretall.Theroadsarewide.Thetrafficisbusy.It’snoisyinthecity.Theairinthecountryside

is______Theskyinthecountryside

is______Theriverinthecountryside

is______Thetreesinthecountrysideare_______thanthose

inthecity.

It’s________inthecountrysidethaninthecity.thanthatinthecity.

greenerquieterfresherbluerclearerWangWeilikesthecountrysideverymuchbecausehethinkstheairis_________,theskyis_______andtheriversare________there.Michaelthinksthecountrysideismuch________thanthecity,too,sopeoplecanenjoythebeautiesofnature.WangWeigoestothecountrysideeveryyearforhissummerholiday.fresherbluerclearer

quieterListenagainandfillintheblanks.Thenreaditaloud.所填单词有什么特点？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。AdjectivestrongtallnicebraveComparativestrongernicerSuperlativestrongestnicestAdjectivebigfatthinlazyuglyComparativebiggerlazierSuperlativebiggestlaziest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:busy—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)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。AdjectivestrongtallnicebraveComparativestrongernicerSuperlativestrongestnicestAdjectivebigfatthinlazyuglyComparativebiggerlazierSuperlativebiggestlaziest下列形容词比较级和最高级变化有什么规律？

taller

tallest

braverbravest

fatterfattestthinnerthinnest

uglierugliest2bListentotheconversationandfillintheblanks.2aOneday,thechildrenwerevisitingafarm.录音2a-P81smallbigThemicearesmallerthanthehens.Thehensaresmallerthanthegeese.Themice

arethesmallest

ofall.<<？？>>Thehens

arebiggerthan

themice.Thegeese

arebiggerthan

thehens.Thegeese

arethebiggest

ofall.smallbig？？thinTheducksarealittlethinnerthanthegeese.<Theducksaremuchthinnerthanthepigs.<？thinadj.瘦的；薄的；稀的质疑再探对于本节你还有那些疑问运用拓展：写出下列形容词的比较级和最高级。short______________small_____________large_______________late______________happy______________easy_______________hot_______________hard_______________cute________________