人教版八上英语Unit 4《Section A》课件

SectionAUnit4AmazingPlantsandAnimals1aLookattheplantsandanimals.Usethewordsintheboxtotalkaboutthem.moss:___________________________ bluewhale:______________________________redwoodtree_____________________cheetah:_________________________beautifulbigfastheavylargelongoldsmalltallshortold,short,smalllarge,big,heavy,long,beautifultallbeautifulfast,beautiful1bListentotheconversationsandnumbertheplantsandanimalsin1aintheorderyouhearthem.moss:_________ bluewhale:_________redwoodtree:_________ cheetah:_________12341cListenagain.Matchthewordswiththeplantsandanimalsin1a.Somehavetwoanswers.A.heaviest B.largest C.mostbeautifulD.oldest E.fastest F.tallestmoss:_________ bluewhale:_________redwoodtree:_________ cheetah:_________DB;AFE;C1dAskandanswerquestionsabouttheplantsandanimalsin1a.What’samazingaboutthebluewhale?It’sthelargest/biggestanimalintheworld.A:What’samazingaboutthemoss?B:It’soneoftheoldestplantsintheworld.A:What’samazingaboutthecheetah?B:It’sthemostbeautifulanimalintheworldanditrunsthefastest.A:What’samazingabouttheredwoodtree?B:It’sthetallestplantintheworld.Pronunciation1Listenandrepeat.Addonemorewordtoeachgroup.

(答案不唯一)/eɪ//aɪ//ɔɪ//bl//kl//gl//br//kr//gr/a,ai,ayi,y,ighoy,oiblclglbrcrgrwhalerainstay______miceflyhigh______toyjoinchoice_____blackblowblue____cleanclimbclock____gladglassglobe____breadbringbrown_____cross

creamcry_____grassgreatgrow____cakelightboyblockclassgluebrushcrewgreen2Listenandrepeat.Noticethedifferenceinstressandmeaningofthesamesentence.IvisitedtheredwoodforestsinCaliforniaseveraltimes.(nototherforests)Ivisitedtheredwoodforestsin

California

severaltimes.(nototherplaces)IvisitedtheredwoodforestsinCalifornia

severaltimes.(notonlyonce)2aListentotheconversationandfillintheblanks.BambooSeaElla:Oh,what’sthat,ChenJie?It’ssobeautiful!ChenJie:Thanks.It’safolding/'fəʊldɪŋ/fan.Iboughtitlastyear.Ella:Oh!Ithasapaintingofbamboo/bæm'buː/onit.ChenJie:Yeah/jeə/.Bambooisoneofthemostpopular/'pɒpjələ(r)/subjectsinChinesepaintings.It’sa_________ofgoodness/'ɡʊdnəs/inChineseculture.Ella:Ididn’tknowthatbefore.So,wheredidyougetthatfan?symbol~~~~~~~~~~~~oneof+the+形容词最高级+可数名词复数表示“……中最……之一。ChenJie:AttheBambooSeainSichuan,the_________and_________bambooforestinChina.IlearntlotsofinterestingthingswhenIwasthere.Ella:Really?Likewhat?ChenJie:Well,bambooisoneofthefastest-growingplants.Somebamboocangrowalmostonemetreinoneday.Also,it’soneofthe_____________plantsintheworld.Peoplecanuseittobuildhousesandmaketools/tuːlz/andinstruments.largestoldestmostuseful~~~作可数名词（1）工具；用具（2）手段；方法Ella:Oh,that’sinteresting.Irememberpandaslovetoeatbambootoo,right?ChenJie:Exactly!Actually/'æktʃuəli/weeatbambooshoots/ʃuːts/too.They’rereallydelicious.~~表示“也”，通常放句末，用逗号隔开。2bReadtheconversationandanswerthequestions.1.WhatdoesEllaseeonthefoldingfan?2.Whydoesbamboooftenappear/ə'pɪə(r)/inChinesepaintings?3.WhereistheBambooSea?Apaintingofbamboo.It’sasymbolofgoodnessinChineseculture.TheBambooSeaisinSichuan.4.Whatdopeopleusebamboofor?5.IsEllainterestedinbamboo?Howdoyouknow?Peopleuseittobuildhousesandmaketoolsandinstruments.Yes.Becausesheknowspandaslovetoeatbambootoo.2cCompletethemindmapwiththeinformationfrom2a.theBambooSeainSichuanBambooonChenJie’sfoldingfan·gotat________________________·the________and________

bambooforestinChinaoneofthefastest-growing

plantsgrow_________________in

onedayoneofthemostusefulplantsintheworld·build________·make________and____________·foodfor________and________apopularsubjectinChinesepaintingsasymbolof_____________largestoldestalmostonemetrehousestoolsinstrumentspandashumansgoodness2dListentotheconversationagain.Thenrole-playit.2eImagineyouareatourguideattheBambooSeaandyourpartnerisaforeigntourist.Makeupaconversationaboutbambooanditsimportance.A:WelcometotheBambooSea!I’myourtourguidetoday.I’dlovetosharealltheinterestingthingsaboutbamboowithyou.Pleasefeelfreetoaskmeanyquestionsyouhave.B:BambooseemstobeaverypopularplantinChina.CanyoutellmewhytheChinesepeoplelikebamboosomuch?A:Well,...~~引导宾语从句，作tell的直接宾语。略~~~~~share...with...与……分享……GrammarFocus3aReadthesentencesandnoticethewordsinbold.Whatarethewaystoformasuperlativeadjectiveoradverb?Thebluewhaleisthelargestandheaviestanimalintheworld.ThebiggestlandanimalintheworldistheAfricanelephant.Thecheetahrunsthefastestamongalllandanimals.Ithinkthemostusefulplantintheworldisbamboo.Itisperhapsthemostinterestingplantintheworld.3bCompletethesentenceswiththesuperlativeformsofthewordsinbrackets.1.Amongallanimals,Ilovepandasthebest.Ithinktheyare___________(cute)animalsintheworld.2.Whichdoyouthinkis__________________

(beautiful),therose/rəʊz/,thepeony/'piːəni/,orthelotus/'ləʊtəs/

flower?thecutestthemostbeautiful3.Lookatthatbutterfly/'bʌtəflaɪ/!Ithas__________________(colourful)wings/wɪŋz/.4.Whichanimaljumps___________(high),thelion,themonkey,orthetreefrog/frɒɡ/?5.Theelephantbirdswere___________(large)and______________(heavy)birdseveronearth.Somecouldstanduptothreemetrestallandweigh/weɪ/upto860kg.themostcolourful

highestthelargesttheheaviest3cCompletethepassagewiththesuperlativeformsofthewordsinthebox.ancientbeautifulcommongoodpopularTheginkgo/'ɡɪŋkəʊ/treeisoneof___________________livingtreesonearth.Ginkgotreesfirstappearedover200millionyearsago.Chinesepeoplelovetheginkgo,asitisasymbolofhopeandlonglife.~引导原因状语从句themostancientancientbeautifulcommongoodpopularManyChinesebelieve/bɪ'liːv/thattheoldginkgotreeintheZhongnanMountainsinShaanxiProvince/'prɒvɪns/is___________________.Thousandsoftouristscometoseeiteachyear,especiallyinmid-October,asitis_______________timetoseeit.Theginkgotreeisoneof__________________treesinstreets,parks,andgardensacrossChina.~~~~~~~意为“成千上万的；大量的”。~引导原因状语从句themostbeautifulthebestthemostpopularancientbeautifulcommongoodpopularWhenautumncomes,oneof______________________________activitiesistotakeawalkunderginkgotrees.Peoplebelievethebrightyellowleavescanbringjoytotheirheart.thecommonest/mostcommon~~~~~~~Peoplebelieve...相当于Itisbelievedthat...意为“人们相信/据信……”。1folding/'fəʊldɪŋ/adj.折叠式的；可折叠的（教材P33）(观察)·Ihaveafoldingbike,soit’seasytocarry.我有一辆折叠自行车，所以携带起来很方便。·Thecampingsiteprovideduswithfoldingchairsandtables.露营地为我们提供了折叠椅和折叠桌。·Hefoldedtheletterandputitinhispocket.他把信折叠起来，放进了口袋里。探究一核心单词归纳拓展（1）foldingadj.折叠式的；可折叠的foldingfan折扇foldingchair折叠椅foldingbed折叠床foldingdoor折叠门（2）foldv.折叠；对折（folding—folded—folded）foldup折叠起来foldtheclothes叠衣服2popular/'pɒpjələ(r)/adj.广受欢迎的；流行的（教材P33）(观察)·

Icecreamisverypopularinsummer.冰淇淋在夏天很受欢迎。·Footballisapopularsportinourschool.足球在我们学校很受欢迎。·Thecartoonispopularwithlittlechildren.这部卡通片受到小孩子的欢迎。·Hanfu,akindofancientChineseclothes,isgettingmoreandmorepopularamongChineseyoungpeoplenow.汉服是中国古代的一种服饰，现在越来越受到中国年轻人的欢迎。归纳拓展popularadj.广受欢迎的；流行的主要用来描述事物或人受到大众的喜爱或欢迎，既可作定语，也可作表语。bepopularwith/among受……欢迎；为……喜爱get/becomepopular变得受欢迎/流行3goodness/'ɡʊdnəs/n.美德；营养（教材P33）(观察)·Hergoodnessandpatiencemakeherawonderfulteacher.她的善良和耐心使她成为一名出色的老师。·Muchofthegoodnessinfoodmaybelostincooking.食物在烹调中可能失去许多养分。·Mygoodness!Lookatthetime!天哪！看看几点了！归纳拓展（1）goodnessn.美德；营养由good（adj.好的）+-ness（名词后缀“……的性质/状态/特点”）构成（2）goodness（口语）天哪（用于表达惊讶、感叹）Mygoodness!=Goodnessme!=MyGod!天哪！4actually/'æktʃuəli/adv.实际上；居然（教材P33）(观察)·Weactuallyhaveapetdog.我们其实有一只宠物狗。·Actually/Infact,IforgottotellyouthatIhaveameetingtomorrow.事实上，我忘了告诉你我明天有个会。·Theactualweathertodayissunnyandwarm.今天的实际天气是晴朗而温暖的。归纳拓展（1）actuallyadv.实际上；居然常用于修饰动词、形容词、其他副词或整个句子，表示某事情是真实的或实际上发生的。同义表达：infact事实上（2）actualadj.真实的；实际的5shoot/ʃuːt/n.幼苗；嫩芽v.开(枪)；射击（教材P33）(观察)·Thegardenhaslotsofgreenshootscomingup.花园里长出了很多绿色的幼苗。·Don’tshootatthebird.不要朝那只鸟射击。·He’sshootingforapromotionthisyear.他正在争取今年升职。·Duringthebasketballgame,shewaitedfortheperfectmomenttoshoot.在篮球比赛中，她等待着最佳时机投篮。·Acatshotacrosstheroadwhenthecarpassedby.汽车经过时，一只猫飞快地穿过马路。·Thedirectorisshootinganewmovieinourcity.导演正在我们城市拍摄一部新电影。归纳拓展（1）shootn.幼苗；嫩芽bambooshoots竹笋（2）shootv.开（枪）；射击shootatsb/sth向……射击/投射shootforsth努力争取；力求达到（目标、分数等）（3）shootv.射门；投篮；拍摄；快速移动6appear/ə'pɪə(r)/v.出现；看来好像（教材P34）(观察)·Yournamewillappearatthefrontofthebook.你的名字将出现在书的封面上。·Thestudentsappeartobeenjoyingthefieldtripverymuch.学生们似乎非常喜欢这次实地考察。·Herappearanceatthepartywasquiteunexpected.她在聚会上的出现是相当出人意料的。·Whenspringcomes,thesnowandicedisappear.当春天来临时，冰雪消失了。归纳拓展（1）appearv.出现一般指具体有形的事物突然或逐渐地出现，强调“显现”或“存在”。（2）appearv.看起来好像作系动词，不用于进行时。appeartodosth似乎要做某事appear(tobe)+adj.看起来……（3）appearancen.出现，外观（4）disappearv.消失7land/lænd/n.陆地；土地v.降落;着陆（教材35）(观察)·Wecanseetreesandflowersonland.我们可以在陆地上看到树木和花朵。·Chinaisabiglandwithmanybeautifulplaces.中国是一个拥有许多美丽地方的大国。·Wevisiteddifferentlandsandlearnedabouttheircultures.我们参观了不同的国家，了解了其文化。·Theplanelandedsafely.飞机安全着陆了。·Attention,please!Theplanewilllandintenminutes.大家请注意!飞机将在十分钟后降落。图解助记归纳拓展

（1）landn.陆地；土地作不可数名词，与sea（n.海洋）对应。onland在陆地上；byland经陆路（2）landv.降落；着陆作不及物动词，其后常跟介词in或on。反义词组为takeoff（起飞）。（3）land[C]n.

国家；地区8African/'æfrɪkən/adj.非洲的；非洲人的n.非洲人（教材P35）(观察)·TheAfricanchildreninthepicturearesmiling.图片中的非洲孩子们正在微笑。·Africandrummingisverypopulararoundtheworld.非洲鼓乐在世界各地都很受欢迎。·HeisanAfricanfromKenya.他是一位来自肯尼亚的非洲人。·Africaisthesecond-largestcontinentintheworld.非洲是世界上第二大洲。归纳拓展

（1）Africanadj.非洲的；非洲人的n.非洲人（2）African.非洲（3）在英语中，某些表示地区或国家的词，加后缀-ian,-an可构成名词或形容词。类似构成的词有：Asia亚洲—Asian亚洲的；亚洲人Europe欧洲—European欧洲的；欧洲人America美洲；美国—American美洲的，美国的；美国人Oceania大洋洲—Oceanian大洋洲的；大洋洲人Australia澳大利亚—Australian澳大利亚的；澳大利亚人9weigh/weɪ/v.有……重；称重量（教材P35）(观察)·Howmuchdoesthiswatermelonweigh?这个西瓜有多重？·ThedoctorweighedmeandsaidIneededtoloseweight.医生给我称了体重，说我需要减肥。·Heisweighinguptheprosandconsoftheplan.他正在权衡这个计划的利弊。·Shelostalotofweightbyexercisingeveryday.她通过每天锻炼减掉了很多体重。·Theweightofthisbookisonekilogram.这本书的重量是一公斤。归纳拓展

（1）weighv.有……重对重量提问用“Howmuchdoes/do...weigh?”或“Howheavy...?”。（2）weighvt.称重量（3）weighv.认真考虑；权衡weighup权衡（4）weightn.重量；分量puton/gainweight增加体重loseweight减肥theweightof...……的重量10kg(=kilogram;kilogramme)千克；公斤（教材P35）(观察)·—Howmuchdoesthisboxofbooksweigh?这箱书有多重？—It’sabout5kg.大约5千克。·Applescostfivedollarsakilogram.苹果每千克5美元。·Ourschoolisabout2kilometersawayfrommyhouse.我们学校离我家大约2千米远。归纳拓展（1）kg(=kilogram;kilogramme)千克；公斤（2）常见的重量单位还有：gram克（符号g）；milligram毫克（符号mg）；tonne吨（符号t）。（3）前缀“kilo-”构成的常见的单词还有：kilometer/kilometre（km）千米；公里、kilowatt千瓦、kilobyte（KB）千字节等。11believe/bɪ'liːv/v.相信；认为有可能（教材P35）(观察)·Idon’tbelieveyou!我不相信你！·Idobelieveyou’reright.我的确相信你是对的。·It’swidelybelievedthatexercisecanimprovementalhealth.人们普遍认为运动可以改善心理健康。·Believeitornot,ourcatcanopentherefrigeratordoorbyitself.信不信由你，我们家的猫能自己打开冰箱门。归纳拓展believev.相信；认为有可能后接名词、代词或从句作宾语。一般不用于进行时态。（引导的句子在变成否定句时，要否定主句而不能否定从句。）It’sbelieved+（that）从句人们认为……believeitornot“信不信由你”，是日常口语中高频使用的固定短语。辨析：believe与believeinbelieve表示相信某人的话，相信某事等。believein表示“信任，信赖”。多指品德、操守等方面的可靠、可信。一语辨异Wedon’tbelieveinher,sowedon’tbelievewhatshesays.我们不信任她，所以我们不相信她说的话。1feelfree(todosth.)可以随便做某事（教材P34）(观察)·Youcanfeelfreetoaskmeanyquestion.你可以随便问我任何问题。·Makeyourselfathomeandhelpyourselftothesnacks.请随便，吃点零食吧。·Doasyoupleasewiththeremainingtime.剩下的时间请随意安排。探究二核心短语归纳拓展feelfree(todosth)可以随便做某事同义短语有：makeyourselfathome(todosth)请随意doasyouplease请随意做某事2takeawalk散步（教材P35）(观察)·Let’stakeawalkafterdinner.我们晚饭后去散步吧。·It’sgoodforyourhealthtotakeawalkeveryday.每天散步对你的健康有好处。·Mygrandparentsliketotakewalksintheparkeverymorning.我祖父母每天早上都喜欢在公园里散步。·Let’sgoforawalkafterschool.放学后我们去散步吧。归纳拓展（1）takeawalk散步其中walk作名词，意为“散步；步行”。同义表达：takewalks、goforawalk或haveawalk。（2）“take+名词”短语：takealook看一看takearest休息一下1What’samazingaboutthebluewhale?蓝鲸令人惊叹的是什么？（教材P32）(分析结构)本句是一个主系表结构的特殊疑问句。what是疑问词，在句子中充当主语，is是系动词，amazing是表语，aboutthebluewhale是介词短语作状语，表明“令人惊叹”这一特征所涉及的对象是蓝鲸。~~~~~~~~~~~~探究三核心句式·Whichbookontheshelfisinteresting?书架上哪本书很有趣？·Whoiskindtoeveryone?谁对每个人都很好？·Whatisyourfavourite

colour?你最喜欢的颜色是什么？·Wheredidyougoonvacationlastyear?你去年去哪里度假了？·Whatdidyouhaveforbreakfasttoday?你今天早餐吃了什么？·Whydidn’tyoucometoschoolyesterday?你昨天为什么没来上学？归纳拓展本句是特殊疑问句，结构为“特殊疑问词（主语）+be动词+形容词（表语）+介词短语（状语）？”。特殊疑问句的另一个结构是：特殊疑问词+一般疑问句？常见的特殊疑问词有：what，why，who，when，where，how等。敲黑板疑问词作主语，句子用陈述语序。2Iboughtitlastyear.我去年买的它。（教材P33）(分析结构)本句是一个主谓宾结构的简单句。I是主语，bought是谓语，it是宾语，lastyear是时间状语。·Iplayedfootballyesterday.我昨天踢了足球。·Ididn’tplayfootballyesterday.我昨天没踢足球。·Wevisitedthezootwoweeksago.我们两周前参观了动物园。·Wewereintheparkthismorning.我们今天早上在公园。·Theyweren’tinterestedinthemoviebecauseitwasboring.他们对这部电影不感兴趣因为电影很无聊。~~~~~~~~~~~~~~归纳拓展此句是含有实义动词的一般过去时的句式结构：主语+动词过去式+其他.其否定句句式结构：主语+didn’t+动词原形+其他