Unit6Lesson3课件-冀教版初中英语八年级上册

Unit6NaturalwondersoftheworldLesson3Greatrivers能围绕河流话题，依据对话信息准确回答关于河流特征、长度比较等问题；在语境中正确运用形容词比较级、最高级完成句子填空，实现语法知识的语言输出，提升语言运用的准确性与熟练度。能掌握长江、黄河等河流的英文表达及相关地理知识（长度、流经等

）；熟悉形容词比较级（-er）和最高级（-est）的构成规则与用法，精准识别并运用比较级、最高级描述事物特征与比较关系。能够运用所学河流知识、比较级和最高级语法，描述更多地理景观（如山脉、湖泊等

）的特征及相互间的比较关系；自主收集世界地理景观世界纪录信息，用英语进行整理、分享与交流，拓展知识运用场景，提升综合语言运用与知识迁移创新能力。

学习目标213Whichgreatriverthisis.LeadinThevideoabouttheYellowRiverA

HowmanylargeriversdoyouknowinChina?Whatarethey?BHowmanyprovincesdoestheYellowRiverflowthrough?C

HowlongistheYellowRiver?TherearemanylargeriversinChina.IknowtheChangjiangRiver，theYellowRiver，theHeilongjiangRiver，theZhujiangRiver，theLancangRiver，theSonghuaRiverandsoon.Nine

1

Readthequestionsandgiveyouranswers.About5,464kilometers.新课讲授ReadandgiveAWhatisuniqueabouttheshapeoftheYellowRiver?BHowmuchlongeristheChangjiangRiverthantheYellowRiver?IthasauniqueshapeliketheChinesecharacter“几”.ChangjiangRiveris836kilometreslongerthantheYellowRiver.2

Readtheconversationandanswerthequestions.ReadandanswerReadthedialogueagainandcompletethetable.ChinaChinaAfricaSouthAmericaAfricathesecondlongestinChinathelongestinChinathelongestintheworldReadandcomplete3

Readthesentencesandpayattentiontothepartsinyellow.•TheChangjiangRiverislongerthanit.•IsitthelongestriverinChina?Tocomparetwoormorethings，weusecomparativeandsuperlativeadjectives.Weusuallyadd-erand-esttowordstomakecomparativesandsuperlatives.Readandsummarise比较级和最高级（Comparativeandsuperlative）形容词（Adjectives）英语中的形容词有原级、比较级和最高级三种形式。表示“比……更……”的概念时，用比较级；表示“最……”的概念时，用最高级。e.g.Dannyismuchtallerthisyear.VictoriaFallsisoneofthelargestwaterfallsintheworld.形容词比较级和最高级的构成方法如下表：构成方法原级比较级最高级单音节词一般在词尾加-er或-estfastfasterfastest以-e结尾的单音节词，以-ple结尾的双音节词，只加-r或-stlargesimplelargersimplerlargestsimplest以一个辅音字母结尾的重读闭音节词，双写该字母后加-er或-estbigwetbiggerwetterbiggestwettest构成方法原级比较级最高级以“辅音字母+y”结尾的词，变y为i后，加-er或-estlazyluckylazierluckierlaziestluckiest以-er或-ow结尾的少数双音节词，加-er或-estclevernarrowcleverernarrowercleverestnarrowest其他双音节词或多音节词，在词前加more或mostusefulimportantmoreusefulmoreimportantmostusefulmostimportant注意：下列形容词的比较级和最高级的特殊变化：good—better—bestbad—worse—worstlittle—less—leastfar—farther—farthestold—older(elder)—oldest(eldest)many(much)—more—most形容词比较级和最高级用法示例：Takeshortershowerstosavewater.Myelderbrotherislearningtodrive.Ourbiggestgoalistobehappy.Iwanttogrowthebestcropsforpeople.副词（Adverbs）副词比较级和最高级的构成及用法与形容词基本相同，只是在副词最高级前的定冠词the可以省略。其构成和用法举例如下：1．在单音节词和少数双音节词词尾，比较级加-er，最高级加-est。e.g.hard—harder—hardestslow—slower—slowestearly—earlier—earliestInhislateryears,heworkedevenharder.Butwecanfinishthejobearlierwithmorevolunteers.2．在两个及两个以上音节词的前面，比较级加more，最高级加most。e.g.carefully—more carefully—mostcarefullyhappily—more happily—mosthappilyWecleanedtheclassroommorequicklybyworkingtogether.Shecheckedheranswersmostcarefullybeforehandingintheexam.3．下列副词的比较级和最高级的变化不规则，需特殊记忆。e.g.well—better—best much—more—most little—less—leastbadly—worse—worst far—farther—farthestIfwedriveless,theairwillbecleaner.Helivesfarthestfromschool,sohewakesupearliest.写出下列单词的比较级和最高级1.big____________________ 2.boring____________________ 3.busy____________________ 4.difficult____________________

5.easy____________________ 6.fat____________________

7.fine____________________ 8.good____________________

9.great____________________ 10.happy____________________biggerbiggestmoreboring

mostboringbusier

busiestmoredifficultmostdifficulteasiereasiestfatterfattestfinerfinestbetterbestgreatergreatesthappierhappiestPractice11.healthy____________________12.interesting____________________13.old____________________ 14.relaxing____________________

15.short____________________ 16.small____________________17.tidy____________________ 18.careful____________________

19.well____________________ 20.little____________________healthierhealthiestmoreinterestingmostinterestingolder/elder

oldest/eldestmorerelaxingmostrelaxingshortershortestsmallersmallesttidiertidiestmorecarefulmostcareful

betterbestlessleastABillruns________(fast)thananyotherboyinhisclass.BThisriveristhreemetres_________(wide)thanthatone.CHainanIslandisthesecond_______(large)islandinChina.D

TheweatherinChongqingis________(hot)thanthatinBeijing.fasterwiderlargesthotterFillintheblanks.4

Readandcompletethepassage.A.stilllower B.thelongestriver C.thehighestpeakD.thelargestriver E.theworld'swidestDoyouknowmoreworldrecordsrelatedtolandscapes?TheAmazonRiveris______intermsofwatervolume.Ontheotherhand,theNileis______intheworld.AngelFallsinVenezuelaholdstherecordfor______.Ithasaheightof979metresandawidthofaround150metres.Whenitcomestomountains,MountQomolangmastandstallas______intheworld.Itis8,848.86metresabovesealevel.OtherfamousmountainssuchasK2andKanchenjungacomeclosebut______.Therearemanyotherremarkablenaturalfeaturesandgeographicalwondersaroundtheglobe.DBECAReadandcomplete5

Doyouwanttoknowaboutmorelandscapesintheworld?Findmoreinformationandshareitwithyourpartner.NameLocationCharacteristicsBiodiversityBestTimetoVisit……FindandshareIntroducethemusingcomparativesandsuperlatives.ZhangjiajieQomolangmaHulunbeirGuilinIntroducing1.HowmanyprovincesdoestheYellowRiverflowthrough?throughprep.从一端至另一端;穿过强调从物体内部或中间穿过acrossprep.从物体表面横向穿过crossoverpastv.从物体表面横向穿过prep.指从物体上方越过prep.指从物体旁边经过Languagepointse.g.Thebirdflewinthroughthewindow.

这只鸟从窗户飞了进来。Thechildrenranacrossthegrassland.=Thechildrencrossthegrassland.

孩子们跑过草地.Heclimbedoverthewall.

他翻过墙去。Igopastthebankonmywaytoschool.

我在上学的路上经过这家银行。拓展学习：through的其他用法（1）[介词]以,凭借

表示方式。e.g.Throughthepractice,childrencanhaveadeeperunderstandingofthetextbooks.

通过实践,孩子们可以对课本有更深的理解。（2）[介词]自始至终,从头到尾e.g.Heactedsowellthatpeoplejustcouldn'tstoplaughingthroughthemovie.

他演得如此好,以至于人们看电影时从头到尾笑个不停。2.I'mtryingtolocatetheYellowRiver.locatev.找出……的准确位置;把……安置在e.g.Rescueplanesaretryingtolocatethemissingsailors.

救援飞机正在努力查明失踪水手的下落。TheylocatedtheircompanyinBeijing.

他们把公司设在了北京。拓展学习：belocatedin...位于...e.g.Thebusinessislocatedrightinthecentreoftown.

这家商店就在镇中心。locationn.地方;地点;位置e.g.Whatistheexactlocationoftheshop?

那个商店的确切位置在哪里?3.Letmecheck.checkv.&n.检查e.g.Beforehandinginyourpaper,checkifyournameandnumberarecorrect.在交卷之前,检查一下你的姓名和号码是否正确。Couldyougivethetyresacheck?你能检查一下轮胎吗?checkout结账离开(旅馆等);核实checkin(at...)(在旅馆、机场等)登记,报到checkover仔细检查:核对4.Ontheotherhand,theNileisthelongestriverintheworld.ontheotherhand另一方面常与ontheonehand

连用,构成“ontheonehand...,ontheotherhand...”结构,意为“一方面…,另一方面…”e.g.Ontheonehand,eatingoutisconvenientandtasty;ontheotherhand,it'snotalwayshealthy.

一方面,外出就餐既方便又美味;另一方面,它并不总是健康的5.Whenitcomestomountains,MountQomolangmastandstallasthehighestpeakintheworld.whenitcomesto当涉及/谈到….时此处to是介词,后可接名词、代词或动词-ing形式。e.g.Whenitcomestolearninganewlanguage,practiceisthemostimportantthing.

说到学习一门新语言,练习是最重要的事情。1.Youshould_________(检查)youranswerscarefullytomakesuretheyareallcorrect.2.Doyouthink“4”isanunlucky_________(数字)?3.ThemovieNeZha2hasbecomepopulart__________theworld.4.Thesmallschooll_________inthecountrysidecloseddownfiveyearsago.5.Intheeyesoftheteacher,eachstudentisu_________anddifferent.一、根据句意及汉语或首字母提示填写单词checknumberhroughoutocatednique当堂检测1.Mikehadacoldlastweek.Buthefeelsmuch________(good)now.2.Nothingis_____________(enjoyable)thantennis,soitismyfavouritesport.3.The_________(little)junkfoodyoueat,thehealthieryouwillbe.4.Lily'sparentshavefourdaughters,andsheisthe__________(young)child.5.JackthinksBeijingro