八年级上册-unit3单元课件

Unit3I’mmoreoutgoingthanmysister.SectionA形容词adj.Heistall.Heisatallman.形容词(adjective)，简称adj.。形容词用来修饰名词或代词，表示人或事物的性质、状态，和特征的程度好坏，与否。副词(adverb)用以修饰动词或加强描绘词组或整个句子的词。Hesingswell.Herunsfast.TrytofindouttheadjectivesandadverbsinSectionAofUnit3.Nowtrytowriteouttheircomparativeforms.Adjectiveslonggoodtallheavyshortoutgoingfriendlyfunnyhard-workingsmartlazywellloudlyfasthighearlyhardclearlyAdverbs大多数形容词和副词有三个等级：原级、比较级、最高级。一、构成1.构成的不规则变化:eg.good/well–better–bestbad/badly–worse–worstmany/much–more–mostlittle–less–leastfar–farther/further–farthest/furthestGrammar:形容词和副词的比较级和最高级二.构成的规则变化:1.单音节词和少数双音节词1)一般在词尾后加-er或-est.如：cold–colder–coldesttall—taller–tallest2)以e结尾的词直接在其后加-r或-st.如：nice—nicer–nicestwhite—whiter–whitest3)重读闭音节词末尾只有一个辅音字母时,先双写这个辅音字母,再加-er或-est。如:big–bigger–biggestthin–thinner–thinnest4)以“辅音字母+y”结尾的双音节词，先改y为i,再加-er或-est。如：easy–easier–easiesthappy–happier–happiest2.多音节词和部分双音节词在词前加more或most。如：delicious–moredelicious–mostdeliciousinteresting–moreinteresting–mostinterestingComparativeformsnew—big—thin—large—nice—easy—heavy—good—bad—smart—funny—wild—tall—many—much—well—long—short—small—Readinpairsnew—newerbig—biggerthin—thinnerlarge—largernice—nicereasy—easierheavy—heaviergood—betterbad—worsesmart—smarterfunny—funnierwild—wildertall—tallermany—moremuch—morewell—betterlong—longershort—shortersmall—smallerLiuXiangistall.PanChangjiangisshort.LiuXiangistallerthanPanChangjiang.PanChangjiangisshorterthanLiuXiangthan比(conj.连词).两者之间比较，用形容词或副词的比较级LiYongismoreoutgoingthanChenglong.ChengLongisoutgoing.LiYongismoreoutgoing.Therabbitrunsfasterthantheturtle.Theturtlerunsharderthantherabbit.SummaryCompareAwithB:A+Be+adj.比较级+than+B.A+V.+adv.比较级+than+B.tallthinlonghairquietlyloudlyshorthairheavyshort1a.Matcheachwordwithitsopposite!Listenandnumberthepairsoftwinsinthepicture.1b1231c.PairworkThat’sTara,isn’tit?No,itisn’t.It’sTina.TinaistallerthanTara.AndshealsosingsmoreloudlythanTara.TaraTina2a.Listen.Arethewordsintheboxusedwith“-er/ier”or“more”?funny(run)fastfriendly(jump)highOutgoing(work)hardhard-workingsmart(getup)earlylazy-er/-iermorefriendlyoutgoingfunnyfasthighhard-workinghardsmartlazyearly2b.Listenagain.HowareTinaandTaradifferent?Fillinthecharts.Tina…ismoreoutgoingthanTara.isfriendlierandfunnierrunsfasterandjumpshigherissmarterislazierTara…worksashardasTina.getsupearlierthanTina.TomSamTomsmarttall☆☆☆☆runfastgetupearly☆☆☆☆☆☆thinFunny☆☆☆☆hard-working☆☆☆☆friendly2c.Pairwork☆☆☆meansSamistallerthanTom.SamistallerthanTom.SamgetsupasearlyasTom.SamisfunnierthanTomSamismorehard-workingthanTom.SamissmarterthanTom.TomrunsfasterthanSam.TomisthinnerthanSam.TomismorefriendlythanSam.2c.Pairwork2d.Role-playtheconversationJulie:Didyoulikethesingingcompetitionyesterday,Anna?Anna:Oh,itwasfantastic!Nellysangsowell!Julie:Well,IthinkLisasangbetterthanNelly.Anna:Oh,whichonewasLisa?Julie:Theonewithshorterhair.IthinkshesangmoreclearlythanNelly.Anna:Yes,butNellydancedbetterthanLisa.Julie:YoucantellthatLisareallywantedtowin,though.Anna:Well,everyonewantstowin.Butthemostimportantthingistolearnsomethingnewandhavefun.PracticeComparewithyourpartnerandfindoutthedifferencesbetweenyouandyourpartner.用法1.比较级表示两者(人或事物)的比较。eg.IamtallerthanTom.Mydressismorebeautifulthanhers.2.最高级表示三者或三者以上(人或事物)的比较,其中有一个在某一方面超过其他几个时,用最高级。最高级的前面一般要加定冠词the,后面可带of(in)短语来说明比较的范围。如：Sheistheyoungestintheclass.Jasonisthetallestofthethree.Whosehandwritingisthebestofall?Payattentionto1.用比较级进行比较时，前后用以对比的必须是同类事物。e.g.Myhairislongerthanhers.herhair2.在形容词比较级前还可用much,even,still,alittle来修饰,表示“……的多”,“甚至……”,“更……”,“……一些”。如：Thiscityismuchmorebeautifulthanbefore.She’salittlemoreoutgoingthanme.It’sevencoldertoday.3.“比较级＋and＋比较级”意为“越来越……”。多音节比较级用“moreandmore＋形容词原级”形式。如：It’sgettingworseandworse.Thegroupbecamemoreandmorepopular.4.1)as…as…同级比较,两个“as”之间必须使用形容词或副词原级。意为“如同……一样……”,如：LucyisassmartasLily.2)notas/so…as“不如……一样……”中间必须使用形容词或副词原级,如：Lucyisnotas/sosmartasLily.e.g.Herunsasquicklyashisfather.Thewatermelonisasbigasasoccerball.Shedoesn’tstudyso/ashardasherbrother.as...asmybikeherbikeMybikeisasbigasherbike.Mybikeisasbigashers.5.“Which/Whois+比较级…？”比较A、B两事物,问其中哪一个较……时用此句型。如：WhichT-shirtisnicer,thisoneorthatone?Whoismoreactive,MaryorKate?6.使用形容词比较级时需注意以下几点：1)than后面接代词时,一般要用主格形式，但在口语中也可使用宾格形式。如：MybrotheristallerthanI/me.2)当需要表示一方超过另一方的程度时，可以用much,alot,alittle,abit,even,still等来修饰形容词比较级。注意:比较级不能用very,so,too,quite等修饰。如：HeismuchmoreseriousthanSam.3)形容词比较级后面往往用连词than连接另一个比较的人或事物,但在上下文明确的情况下,形容词比较级可单独使用。如：Mysisteristall,butmyauntistaller.我姐姐个子高,但我姑姑个子更高。-IsTomsmarterthanSam?-No,heisn’t.SamissmarterthanTom.-IsTaramoreoutgoingthanTina?-No,sheisn’t.TinaismoreoutgoingthanTara.GrammarFocus课时重点回顾-Areyouasfriendlyasyoursister?-No,I’mnot.I’mfriendlier.-DoesTaraworkashardasTina?-Yes,shedoes.-Who’smorehard-workingatschool?-Tinathinkssheworksharderthanme.GrammarFocus课时重点回顾Usethewordstowritequestionsandanswers.1.Julie/tall/youQ:_____________________________________A:No,sheisn’t.She’s_____________thanme.2,Jack/run/fast/SamQ:______________________________________A:No,hedoesn’t.Heruns_________thanSam.3.Yourcousi