八年级上教学课件u4 grammar

Thecomparativeofadjectives&ThesuperlativeofadjectivesbigbiggerbiggestsmallsmallersmallestlonglongerlongestsurprisedmoresurprisedmostsurprisedtiredmoretiredmosttiredwarmwarmerwarmestlargelargerlargestbusybusierbusiestgoodbetterbestexpensivemoreexpensivemostexpensiveRevisione.g.big---bigger---biggest

1.一般情况直接在形容词后+

er,este.g.small---smaller---smallest2.以不发音的e结尾的单音节形容词后+r,ste.g.large---larger---largest3.以一个辅音字母结尾的重读闭音节形容词:

双写该辅音字母＋er,est一元、一辅、一重、一短Findtherules

4.以辅音字母＋y结尾的形容词去y+ier,ieste.g.busy---busier---busiest

e.g.good---better---bestmany/much---more---most

bad---worse---worstlittle---less---least

far---farther---farthestold---older---oldestfar---further---furthestold---elder---eldest

5.一部分双音节和全部多音节的形容词和副词:在前＋more,moste.g.tired------moretired-----mosttiredexpensive---moreexpensive---mostexpensive

6.不规则形容词和副词的变化注：older一般指年龄或新旧；

elder指长幼关系(一般修饰名词);elderbrother/sister

farther指距离更远；

further指抽像的:IwanttostudyEnglishfurther.expensive---mostvaluable---morevaluablevaluable---dirtiest---dirtierdirty---smallest---smallersmall---heaviest---heavierheavy---mostuseful---moreusefuluseful---hottest---hotterhot---finest---finerfine---cheapest---cheapercheap---eldest---elder---oldest---olderold---biggest---biggerbig---healthiest---healthierhealthy---easiest---easiereasy---least---lesslittle---largest---largerlarge---lightest---lighterlight---mostexpensive---moreexpensiveExercises

A1Lookattheschoolreportandanswerquestions.1.S1:Who______________________inArt,BelindaorDaisy?(good)S2:_____________________________.2.S1:Who___________________inArt?(good)

S2:_____________________________.gotabettermarkDaisygotabettermarkinArtthanBelinda.gotabestmarkAlicegotthebestmarkinArt.Agood,badandfar3.S1:Who_____________________inScience,PaulorMartin?(good)S2:_____________________________.4.S1:Who___________________inScience,EricorAlice?(bad)S2:_____________________________.5.S1:Who____________________inScience?(bad)S2:_____________________________.PaulgotabettermarkinSciencethanMartin.gotaworsemarkEricgotaworsemarkinSciencethanAlice.gottheworstmarkEricgottheworstmarkinSciencegotabettermark1.Whosehome…,Alice’sorDaisy’s?S1:Whosehomeisfarther/furtherfromschool,Alice'sorDaisy’s?S2:Alice’shomeisfarther/furtherfromschoolthanDaisy’s.2.Whosehome…,Daisy’s,Eric’sorMartin’s?S1:Whosehomeisthefarthest/furthestfromschool,Daisy’s,Eric’sorMartin’s?S2:Martin’shomeisthefarthest/furthestfromschool.3.Whosehome…,Martin’sorPauline’s?4.Whosehome…,Alice’s,Belinda’sorEric’s?A2Lookatthemap.Askandanswerquestionsaboutit.Followtheexample.Thefirstcomputerwas

asbigasaroom.Withlightbulbs,peoplecandoasmanythingsintheevenings

astheycaninthedaytime.Acandledoesnotproduceasmuchlightasalightbulb.WorkouttheruleWeuse(not)as…aswith(thebaseform/thecomparative)ofadjectivestocomparethingsandpeople.Weuse(not)as…aswith_____________+thepluralformofacountablenounor___________+anuncountablenountocompareamounts.B(not)as...asWeuse(not)as…astosaythatthingsorpeopleare(not)equalinsomeway.manymuchas+形容词/副词原形＋as:和……一样……notas+形容词/副词＋as:和……不一样…Goofyisas

tired

asMinnie.Mickeycannotskate

aswell

asMinnie.Make

sentencesMickeyMinnie1.Mickey

is_______thanMinnie.2.Minnieis_______thanMickey.3.Minnieisnotas_____asMickey.happiersadderhappyplanetrainTheplaneis_____thanthetrain.Thetrainis______thantheplane.Thetrainisnotas____asthe

plane.fasterslowerfastsuitcase1suitcase21.

Theredcaseis____________than

theblackone.2.

Theblackcaseis___________than

theredone.Itis________.3.

Theblackcaseisnotas_________asthered

one.moreexpensivelessexpensivecheaperexpensive3.TheHotwave_______________(high)theMicro-King.4.TheMicro-King_____________________(deep)theSpeedcook.5.TheHotwaveandtheMicro-King____________________(wide)theSpeedcookandtheSuperoven.B1Lookatthepicturesbelowandcompletethesentences.isashighasisnotasdeepasisnotaswideas1.TheBlacks________________________cans____theBrowns.2.TheWhites________________________plastic____theBrowns.3.TheBrowns_________________________paper____theBlacks.4.TheGreens__________________________glass____theWhites.5.TheGreens___________________________cans____theWhites.B2Lookatthetableandthepicturesandcompletethesentenceswith(not)asmany/muchas.asasasasasthrowawayasmanythrowawayasmuchthrowawayasmuchdon'tthrowawayasmuchdon'tthrowawayasmany()1.Thepopulationofthatcityisthreetimes____thanthesmalltown’s. A.largeB.larger C.largest D.thelargest()2.Thisparkisless____thanthatone. A.wonderful B.morewo