英语电子版学案

英语电子版学案八年级形容词比较级亲爱的孩子：Wherethereisawill,thereisaway!有志者，事竟成！一、复习旧知动词时态巩固练习1.I（be）abletotravelinspacesomeday,Ihope.2.--–Don’tdrawonthewall. ---Sorry,I(notdo)itagain.3.Look,theball(notdrop)totheground.4.MissGreen(teach)inthatschoolsinceabouttenyearsago.5.IfTom(push)theredbutton(按钮)themodelplanewillflyback.二、新课讲解形容词比较级（一）、形容词比较级变化一般在词尾加-er/ə/coldcolderfastfaster以字母e结尾的形容词，加-rnicenicerlargelarger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-erbigbiggerhothotter以“辅音字母y”结尾的双音节词，先改“y”结尾的双音节词，先改“y”为“i”,再加-ereasyeasierearlyearlier多音节词在词前加moretiredmoretiredbeautifulmorebeautiful不规则变化，要多加注意哦！good→→bad →→many→→little →→well →→badly→→much→→far →→(二)、形容词比较级的修饰。比较级前面可以用even(更加)，much(……得多)，far(……得多)，alittle(……一点)，abit(一点)，alot(大量)，still(还，还要)等词语示不定程度或数量。eg: Iamevenlesslucky.Sheisfarbetterthanmeatwriting. Thispenismuchbetterthanthatone.TomisalittleshorterthanhisfriendJim.（三）、形容词的比较级and形容词的比较级（前后形容词是同一个）越来越……Ourcountryisbecomingricherandricher.Therearemoreandmorestudentsinourschool.Livingintheworldisbecomingmoreandmoredifficult.（四）、the形容词的比较级……the形容词的比较级表示“越……，就越……”Themoreyoueat,thefatteryouwillbe.Theharderyoustudy,themoreyouwillget.（五）、the形容词比较级of短语两者中比较……的一个Sheistheprettierofthetwogirls.Thebikeistheolderofthetwo.三、课堂练习用所给词的适当形式填空。1.Gold(黄金)is_____________(little)usefulthaniron(铁).2.Mysisteristwoyears_____________(old)thanI.[来源:学。科。4.3。3.John’sparentshavefourdaughters,andsheisthe_____________(young)child.4.The_____________(cheap)bagsarethenotusuallythebestones.5.Theshortoneisbyfar_____________(expensive)ofthefive.四、过关检测（一）单项选择。1．Hefeels_____________todaythanyesterday.A.tired   B.moretired  C.moretireder  D.muchtired2.Whichdoyoulike_____________,coffee,teaormilk?A.theworst  B.worse    C.theworse   D.worst3.Ofthetwotoys,thechildchose_____________.A.theexpensiveone    B.onemostexpensiveC.aleastexpensive     D.themostexpensiveofthem[4.Thelineis_____________thanthatone.[来源:Z,xx,k.Com]A.morelonger     B.notlonger C.muchmorelonger  D.manymorelonger5.Theexperimentwas_____________easierthanwehadexpected.A.more  B.muchmore  C.much D.moremuch6.Thebookis_____________ofthetwo.A.thinner  B.thethinner  C.morethinner  D.thethinnest7.Shelooks_____________thanshedoes.A.themoreolder B.veryolder  C.mucholder  D.moreolder8.Thegardenisbecoming_____________.A.morebeautifulandmore   B.morebeautifulandbeautifulC.moreandmorebeautiful   D.morebeautifulandbeautifuler9.Theycompeted（比赛）toseewhocouldwork_____________.A.thefastestandbest    B.thefasterandthebetterC.fastestandbetter     D.fasterandbetter10.______hurry,_______speed.A.More,less   B.Much,little   C.Themore,theless   D.Themuch,thelittle（二）阅读理解。Doyouknowwhydifferentanimalshavetheirspecialcolors?Colorsinthemseemtobeusedtoprotectthemselves.Somebirdslikeeatinglocusts(蝗虫),butbirdscannoteasilycatchthem.Why?Becauselocustschangetheircolorstogetherwiththechangeofthecolorsofcrops.Whencropsaregreen,locustslookgreen.Butastheharvesttimecomes,locustschangetothesamebrowncolorascropshave.Someotherpestswithdifferentcolorsfromplantsareeasilyfoundandeatenbyotheranimals.Sotheyhavetohidethemselvesinthedaytimeandappearonlyatnight.Themainuseoftheanimals’coloringistoprotectthemselves.Whenbears,lionsandotheranimalsmovequietlythroughforests,theycannotbeeasilyseenbyhunters(猎人).Thisisbecausetheircolorsandthetrees’colorsarequitealike.Haveyouevernoticedanevenstrangeract?Akindoffishintheseacansendoutakindofveryblackliquid(液体)whenitfacesdanger.Becausewhentheliquidspreadsover,itsenemies(敌人)cannotfindit.Anditswimsawayatonce.Soithaslivedonthoughitisnotstrongatall.( )1.Fromthepassage,welearnthatlocusts____.A.arebiganimalsB.areeasilyfoundbybirdsC.aredangeroustotheirenemiesD.changetheircolorstoprotectthemselves( )2.Howcansomepestswithdifferentcolorsfromplantskeepoutofdanger?A.Theyrunawayquickly.B.Theysendoutblackliquid.C.Theyhidethemselvesinthedaytimeandappearatnight.D.Theyhavetomovequietly.( )3.Bearsandlionscankeepsafebecause____.A.theircolorsandthetrees’colorsarequitealikeB.theymovequicklyC.theylikebrownandgraycolorsD.theyliveinforests( )4.Whycanthekindoffishreferredinthepassageliveon?A.Becauseitisverybigandstrong.B.Becausetheliquiditsendsoutcanhelpitescape(逃)fromitsenemies.C.Becausetheliquiditsendsoutcankillitsenemies.D.Becauseitswimsfasterthananyotherfish.( )5.Whichisthebesttitleforthispassage?A.Animals’BeautifulColors.B.ColorsofDifferentAnimals.C.TheMainUseofColorsforAnimals.D.SomeAnimals.五、家庭作业（一）单项选择。1.Iftherewerenoexaminations,weshouldhave_____________atschool.A.thehappiesttime     B.amorehappiertime[来源:学。科C.muchhappiesttime    D.amuchhappiertime2.Ithinkscienceis_____________thanJapanese.A.muchimportant   B.important   C.muchmoreimportantD.moremuchimportant3．Thispencilis_____________thanthatone.A．longest  B.long  C.longer  D.aslong4.Thesechildrenare_____________thisyearthantheywerelastyear.A.moretall  B.moretaller  C.verytaller  D.muchtaller（二）、综合填空OntheeveningofOctober7,LiFengwaswatchingTVwhilehismotherwasb[cookingsupperinthekitchen.Sthetelephonerang.LiFengqpickedituptoathecall.Itwasfromagoodfriendofhism.Shewantedtosay“HappyBirthday”tohismother.“TodayisMother’sbirthday,butIhavealreadyfallaboutit.MothergivesmealotoflandcarewhileIdidn’tcareforhere.Fromnowon,Imustalwaysrthis,smylovetoherandcareforherenough,”LiFengthoughttohimself,feelingalittleashamed(惭愧的).