Unit4Topic1SectionA课件八年级英语上册

学习目标一、掌握以下单词和短语：sky,river,clear,nature,horse,sheep,hen,cow,thin,thinkabout,livein等。二、能掌握形容词的比较级和最高级的变化规律。三、能用比较级描述城乡差异。Itusedtobedirtyandpoor.Didyougotothecountrysidebefore?Butnowitisdifferent!Theskyisblue.Theairisfresh.Thetreesaregreen.Theriverisclear.It’squietinthecountryside.Wecanenjoythebeautyofnatureinthecountryside.Whatanimalscanweseeinthecountryside?agoosesomegeeseamousesomemiceWhatanimalscanweseeinthecountryside?smallsmallersmallestWhatanimalscanweseeinthecountryside?henbigbiggerbiggestWhatanimalscanweseeinthecountryside?sheepstrongcowstrongerstrongesthorsestrongstrongerstrongest原级比较级最高级bigbiggerbiggestsmallsmallersmallest原级比较级最高级smallsmallestsmallershortershortestshort1.一般在词尾加-er或-estnicenicestnicerlaterlatestlate2.以不发音字母e结尾的词加-r或-stp124原级比较级最高级heavyheaviestheaviereasiereasiesteasy3.以辅音字母+y结尾的词，变y为i再加-er,或-estbigbiggestbiggerhotterhottesthot4.以重读闭音节结尾的词末尾只有一个辅音字母应双写辅音字母再加-er或-estdeliciousmoredeliciousmostdeliciousinterestingmoreinterestingmostinteresting5.多音节词和部分双音节词在其前面加more和most

构成方法原级比较级最高级单音节词和少数多音节词一般在词尾加-er或-estcoldcoldercoldest以字母e结尾的，加-r或-stlargelargerlargest重读闭音节词只有一个辅音字母时，应先双写辅音字母；再加-es或-estbigbiggerbiggest辅音字母+y结尾的变y为i,再加-er或-esteasyeasiereasiest多音节词和部分双音节词在词前加more或mostcarefulmorecarefulmostcareful写出以下形容词的比较级形式thin_____ wide_____ young_____happy_____ fat_____ expensive_____large_____ big_____ busy_____late_____ early_____ interesting_____thinnerwideryoungerhappierfattermoreexpensivelargerbiggerbusierlaterearliermoreinteresting2bAdjectivestrongtallnicebraveComparativestrongernicerSuperlativestrongestnicesttallestbraver

tallerbravestAdjectivebigfatthinlazyuglyComparativebiggerlazierSuperlativebiggestlaziestfatterfattestthinnerthinnestuglierugliest原级比较级最高级good好的

well好地bad坏的

badly坏地ill坏的many/much多little少的faroldbetter更好best最好worse更坏；更差worst最坏；最差less更少more更多most最少farther较远further进一步least最少farthest最远furthest最大程度p125older较老的/较旧的elder年长的oldest最老的/最旧的；最年长的eldest最年长的countrysidecity1bListento1aandcheckthewordsyouhear._____fresher_____busier_____bluer_____taller_____bigger_____clearer

_____nicer_____quieter_____noisier1cListenandfillintheblanks.Thenreaditaloud.WangWeilikesthecountrysideverymuchbecausehethinkstheairis_________,theskyis_______andtheriversare________there.Michaelthinksthecountrysideismuch________thanthecity,too,sopeoplecanenjoythebeautyofnature.WangWeigoestothecountrysideeveryyearforhissummerholiday.fresherbluerclearerquieterfresherInthecountrysideinthecity—Whichairisfresher?—Theairinthecountrysideisfresher.Inthecountrysideinthecity—Whichskyisbluer?—Theskyinthecountrysideisbluer.bluerInthecountrysideinthecityclearer—Whichriverisclearer?—Theriverinthecountrysideisclearer.Inthecountrysideinthecityquieter—Whichisquieter?—Thecountrysideisquieter.Watchandunderstand.Michael:Hey,WangWei,whatareyouthinkingabout?WangWei:Oh,I'mthinkingaboutlifeinthecountryside.Michael:Doyoulikethecountryside?WangWei:Yes,Ilikeitverymuchbecausetheairisfresher,theskyisbluerandtheriversareclearerthere.Michael:Ithinkthecountrysideismuchquieterthanthecity,too.Peoplecanenjoythebeautyofnaturethere.WangWei:MygrandmalivesinthecountrysideandIgothereformysummerholidayeveryyear.Michael:Thatmustbefun!Readandunderstand.Keypointsthinkof想起thinkabout思考mustbe一定是can’tbe不可能是Michael:Hey,WangWei,whatareyouthinkingabout?WangWei:Oh,I'mthinkingaboutlifeinthecountryside.Michael:Doyoulikethecountryside?WangWei:Yes,Ilikeitverymuchbecausetheairisfresher,theskyisbluerandtheriversareclearerthere.Michael:Ithinkthecountrysideismuchquieterthanthecity,too.Peoplecanenjoythebeautyofnaturethere.WangWei:MygrandmalivesinthecountrysideandIgothereformysummerholidayeveryyear.Michael:Thatmustbefun!Keypoints形容词比较级的常用句型(两者之间)比较1.比较级+than…2.倍数+比较级+than....注意1：比较级前可加even(更加)much(……得多),alot(大量),alittle(…一点),abit(一点)，表示比较的程度。比较级不能用very,so,too,quite等修饰。注意2：比较时常用that和those来代替名词。TheweatherinSanyaishotterthanthatinBeijing.Thiscakeismoredeliciousthanthatone.Thisgardenis9timeslargerthanthatone.看图说话：big—biggerThegreenappleisbiggerthantheredone.Thegreenappleisalittlebiggerthantheredone.看图说话：big—biggerThegreenappleismuchbiggerthantheredone.大得多看图说话：tall—tallerTheboyistallerthanthegirl.Theboyisalittletallerthanthegirl.看图说话：tall—tallerTheboyistallerthanthegirl.Theboyismuchtallerthanthegirl.2aListentotheconversationandfillintheblanks.Yukio:Kangkang,what’sthestrongestanimalsonthefarm?Kangkang:Horses.Ithinkthe______horseoverthereis________thanthe_______horses.Sally:Ithinkthesheeparethenicestofall.Helen:ButIthinkthiscatis______.Heletsmeholdhim.Yukio:Thepigsmustbethefattestandlaziestanimalsonthefarm.Whatdoyouthink,Sally?Sally:ButIthinkthepigsare_______.Look!Theyareswimmingandchattingwiththehensandducks.Kangkang:Thecatisrunningafteramouseandthedogisplayingwiththerabbit.Helen:Look!Thecowsandthesheepareeating.Alltheanimalsarelivinga_______lifeonthefarm.tallerstrongershorternicercuterbetterKeypoints形容词最高级(三者及以上之间)比较the+最高级....of/in/among...注意1：最高级前需要加the注意2：最高级一般用of或in来表示范围ShanghaiisthelargestcityinChinaThegirlwithredhairisthetallest

inourclass.Exercises1.汤姆比杰克高。

TomistallerthanJack.2.这只箱子要比那只箱子大。

Thisboxisbiggerthanthatone.3.那些苹果比这些大。

Thoseapplesarebiggerthantheseones.4.今天是一年中最热的一天。

Todayisthehottestdayoftheyear.5.他的房间是三个中最干净的一个。

Hisroomisthecleanestofthethree.3Lookatthepictureandchoosethecorrectwordforeachanimal.Thenmakeconversationswiththeadjectivesin2b.horsepigcowcatsheepmousehengooseduckdograbbit(Oneday,theanimalsonthefarmweretalking.)Dog:I’mthestrongestonthisfarm.Rabbit:Idon’tthinkso.Thepigisstrongerthanyou.Dog:Ha!Ha!Heislazierthanme.…Exercises1.-Jack，doyouthinktimeismoney?-Yes，butIthinkitis___money.A.noimportantas B.notimportantas

C.moreimportantthan D.muchimportantthan2.Ittakesalongtimetobytrain，it's____thanbyboat.

A.quick B.thequickest C.muchquick D.quicker3.—Whichseasondoyoulike___，winterorsummer?—Summer.

A.well B.better C.best D.thebest4.HisEnglishisperfect.NoonespeaksEnglish____him.

A.asbeautifulasB.asbadlyas C.worsethanD.betterthanMichael:Hey,WangWei,whatareyou______________?WangWei:Oh,I'mthinkingaboutlife_____________________.Michael:Doyoulikethecountryside?WangWei:Yes,Ilikeitverymuchbecausetheairis______,theskyis______

andtheriversare_______there.Michael:Ithinkthecountrysideis_________________thecity,too.Peoplecanenjoy___________ofnaturethere.WangWei:MygrandmalivesinthecountrysideandIgothereformysummerholidayeveryyear.Michael:That________fun!Retell.thinkingaboutinthecountrysidefresherbluerclearermuchquieterthanthebeautymustbeMichael:Hey,WangWei,___________________________?WangWei:Oh,I'mthinkingaboutlifeinthecountryside