八年级英语上册Module2ScienceandtechnologyUnit4InventionsGrammar课件（新版）牛津深圳版.ppt

GrammarUnit4,Lookatthesentences:,1.Withthelightbulds,peoplecandoasmanythingsintheeveningastheycaninthedaytime.2.Aftertheinventionofthewheel,travellingbecamefasterandmorecomfortable.3.Thewheelisperhapsthegreatestinventioninhistory.,原级,最高级,比较级,形容词比较级和最高级规则变化,1.greatfew2.widenice3.bigfat4.happyheavy5.difficultbeautiful,单音节形容词的比较级和最高级形式是在词尾加-er和-est,以-e结尾的单音节形容词的比较级和最高级是在词尾加-r和-st,以一个辅音字母结尾其前面的元音字母发短元音的形容词的比较级和最高级是双写该辅音字母然后再加-er和-est,以-y结尾,但-y前是辅音字母的形容词的比较级和最高级是把-y改i，再加-er和-est,双音节和多音节形容词的比较级和最高级需用more和most加在形容词前面,greater,greatest,fewest,fewer,原级-比较级-最高级good/(well)-many/much-bad/(badly/ill)-little-far-形容词前如加less和least则表示较不和最不important(重要）-lessimportant（较不重要）-leastimportant最不重要（最不重要）,形容词比较级和最高级不规则变化：,better-best,more-most,worse-worst,less-least,farther/further-farthest/furthest,形容词比较级和最高级用法：,1.原级（同级）比较：asas;notas(so)asWellgiveyouasmuchhelpaswecan.Sheisntas(so)goodatsportsasbefore.2.比较级：表示两者之间比更可用状语much,alittle,even等修饰：HemadefewermistakesthanIdid.HeisevenricherthanI.3.高级：形容词最高级前必须加the,副词最高级前常省略the，后面多用of，in短语表示范围：Itwasthemost/leastinterestingstory.Heisthetallestofthethree.,Lookattheschoolreport:,ReadAaloudandfinishA1,两者,三者或三者以上,gotabettermark,PaulgotabettermarkinSciencethanMartin.,AlicegotaworsemarkinSciencethanEric.,gotaworsemark,gotthebestmark,DaisygotthebestmarkinScience.,A2：Lookatthemapandanswer,A2：Lookandanswer,两者,两者,三者或三者以上,三者或三者以上,asas否定notas/soas(Readandworkouttherule),many,much,LookandFinishB1:,isashighas,isnotasdeepas,arenotaswideas,LookandFinishB2:,throwawayasmuch,as,throwawayasmuch,as,as,as,dontthrowawayasmuch,dontthrowawayasmany,Moreexercises:(原级）,()1.Thisboxis_thatone.A.heavythanB.soheavythanC.heavierasD.asheavyas()2.Whenwespeaktopeople,weshouldbe_.A.aspoliteaspossibleB.aspoliteaspossiblyC.aspolitelyaspossibleD.aspolitelyaspossibly()3.Thisbookis_thatone,but_thanthatone.A.asdifficultas;expensiveB.asmoredifficultas;moreexpensiveC.asdifficultas;moreexpensiveD.moredifficultas;asexpensive()4.Ithinkthestoryisnotso_asthatone.A.interestingB.interestedC.moreinterestingD.mostinteresting,D,A,C,A,()1.Ithinkscienceis_thanJapanese.A.muchimportantB.importantC.muchmoreimportantD.moremuchimportant()2Thispencilis_thanthatone.A.longestB.longC.longerD.aslong()3Mymotherisno_young.A.shorterB.longerC.littleD.few()4Thesechildrenare_thisyearthantheywerelastyear.A.moretallB.moretallerC.verytallerD.muchtaller()5Itwasveryhotyesterday,butitis_today.A.evenhotterB.morehotterC.muchmorehotD.muchhot,Moreexercises:（比较级）,C,C,B,D,A,()6.Whichdoyoulike_,teaorcoffee?A.wellB.betterC.bestD.most()7.Thisworkis_formethanforyou.A.difficultB.mostdifficultC.muchdifficultD.moredifficult()8.Whichdoyouthinktastes_,thechickenorthefish?A.goodB.betterC.bestD.well()9.TheGreatPyramidisabout137metreshightoday,butitwasonce_.A.higherB.highestC.hightooD.morehigh()10.MrsBlackhasgot_insteadofgettinganybetter.A.morebadB.alittleworseC.muchbadlyD.alotofworse,D,B,B,A,B,Moreexercises:(最高级）,（）1.Tomisoneof_boysinourclass.A.tallestB.tallerC.thetallestD.thetall（）2.Englishisoneof_spokenintheworld.A.theimportantlanguagesB.themostimportantlanguagesC.mostimportantlanguageD.themostimportantlanguage（）3.Beijingisoneof_inChina.A.thelargestcityrB.thelargecitiesC.thelargercitiesD.thelargestcities（）4Thetreeis_inthegarden.A.thetallerB.thetallestC.tallerthanofallD.tall.（）5.Whichlanguageis_,English,FrenchorJapanese?A.easyB.themosteasyC.theeasiestD.muchmoreeasy（）6.Whichis_interesting,science,mathsorEnglish?A.moreB.themostC.veryD.too,C,B,D,B,C,B,1.greatgreatergreatestfewfewerfewest2.widewiderwi