Module4unit3课件外研版英语八年级上册

外研·八年级上册Unit3LanguageinuseModule4Planes,shipsandtrainsLanguagepractice形容词和副词的最高级1.形容词和副词的最高级的构成形容词和副词最高级的规则变化：（1）单音节词末尾加-est：eg:great→

small→（2）单音节若以e结尾，只加-st：eg:fine→

nice→

wide→（3）重读闭音节单音节词若末尾只有一个辅音

字母，须先双写这个辅音字母，再加-est：eg:big→

hot→

red→（4）以辅音字母+y结尾的词，则变y为-i，再加-est：eg:busy→easy→（5）大部分双音节词和多音节词，在词前加most：eg:careful→mostcarefulslowly→mostslowly形容词和副词的最高级的不规则变化最高级用于三者或三者以上的人或事（物）之间的比较。

基本句式：主语+谓语动词+（the)最高级+of/among/in+比较范围

(of/among后面一般接表示一群人或事物的代词或名词，in后面一般接表示单位或场所的名词。)2.形容词和副词的最高级的用法eg.Billisthetallestboyofus.

Janehasthemostfriendsinourclass.【注意】最高级前是否加定冠词the要视具体情况而定。总的原则：形容词的最高级前一定要加定冠词the；副词的最高级前可加，也可不加。注意：形容词最高级前带有物主代词或名词所有格时，不能再用the.eg.Lindaismybestfriend.Completethesentenceswiththecorrectformofthewordsinbrackets.11Thisbustakesthe_________(long)timebecauseitisthe_______(slow).2Thenewtraintravelsthe_________(fast)ofallthetrainsintheworld.3The_________(cheap)waytogetthereisbycoach.longestfastestcheapestslowest4Iaminahurry.Whatisthe________(fast)waytogetthere?5Thefastestwaytotravelisbyplane,butusuallyitisalsothe__________________(expensive).fastestmostexpensive1.“the+序数词+形容词最高级+单数可数名词”表示“第几……”。TheYellowRiveristhesecondlongestriverinChina.

ShanghaiToweristhefirsttallestbuildinginChina.上海中心大厦是中国第一高楼。最高级的两个特殊用法：1)黄河是中国第二长河。TheYellowRiveris

____________________inChina.2)中国是世界上第三大国家。Chinais______________________intheworld.thesecondlongestriverthethirdlargestcountry（2）在表达“最……的……之一”时，用最高级，一般构成“oneofthe+形容词的最高级+可数名词复数”的结构。eg.Chongqingisoneofthebiggestcitiesin

ourcountry.(2)英语是最有趣的科目之一。Englishis______________________________ofallthesubjects.Sheis___________________________intheschool.oneofthemostbeautifulgirlsoneofthemostinterestingsubjects3.“形容词/副词比较级+than+anyother+单数可数名词”也可以表达最高级意义，表示“比其他任何……都……”。如：Jimiscleaverthananyotherboyofhisage.吉姆比同龄的任何男孩都聪明。IliketheChinesenewyearbetterthananyotherfestival.我喜欢中国新年比喜欢其他任何节日更甚。Completetheconversationwiththecorrectformofthewordsinthebox.3cheapcloseexpensivegoodmuchslowA:What’sthe(1)______waytogotoQingdao?B:Wecantakeaplane,butthat’s(2)_________.Wecanalsotakeatrain.It’s(3)__________,butit’snotsoexpensive.bestexpensiveslowerThecoachisthe(4)__________waytogo,butittakesthe(5)______time.A:Sohowshouldwego?B:Ithinkthebestwayisbytrainbecausethetrainstationisthe(6)________toourhome.cheapcloseexpensivegoodmuchslowcheapestmostclosestdabcCompletetheconversationwiththesentencesinthebox.Completetheemailwiththewordsinthebox.6bookchoicecosttraveltripFROM:SallyTO:TonySUBJECT:JourneytoChinaHiTony,MyfamilyisplanningajourneytoChinainthesummer.WewanttovisitBeijingfirst.Doyouthinkweshould(1)_____theplaneticketsearly?AfterBeijing,wewanttovisitXi’anandHangzhou,andmaybesomewhereelse.Howcanwe(2)______fromBeijingtoXi’an,bytrainorbyplane?The(3)____isnotsoimportant,butthetimeis.booktravelcostAfterXi’an,wewanttogotoHangzhou.IsitbettertogotoShanghaifirst,orcanwegofromXi’antoHangzhoudirectly?AndafterHangzhouwhatisthebest(4)______?Canwemakeashort(5)____toSuzhou?Whatdoyouthink?Thanksforyourhelp.SallychoicetripListenandmatchthecitieswiththeinformation.LondonBirminghamOxfordCambridgethecitywithfourmillion

peopleasmallbeautifultownthemostexpensivecitythemostinterestingcitythebiggestcityAroundtheworldAroundtheworldWhichisthelongestrailwayintheworld?2.HowistheTrans-SiberianRailway?Readanda