Unit1Unit2复习学案牛津译林版英语九年级上册

九年级英语寒假学习材料（教师）学习内容（9AU1U2复习）学习目标：知识和技能：通过本节课学习，学生能够掌握U1U2重点单词短语、句型和语法的含义和使用方法。过程与方法：通过默写单词短语，讲解与批改的方式，巩固基础单词短语。通过知识讲解，典例分析让学生观察总结。通过习题训练与讲解，进行解题方法和步骤的演示，进一步巩固知识。情感态度和价值观：通过学习本章节内容，孩子能够建立信心，充满学习动力教学重难点：教学重点：重点词汇短语及语法的掌握教学难点：相关知识点如何运用于题目中回顾学习：9AU1U2重点词组吃光，吃完eatup使…保持井然有序keep...in(good)order和…几乎一样,简直是asgoodas不是…就是…，或者…或者…either...or...既不…也不…neither...nor...对...好奇becuriousabout炫耀showoff同意某人(的看法)agreewithsb.想出(主意)eupwith落后fallbehind三思而行thinktwice洗碗dothedishes接受新挑战takeonnewchallenges缺席...beabsentfrom...使某人振奋cheersbup日复一日dayafterday注意（做）某事payattentionto(doing)sth.乐意做某事beready/willingtodo与…相连，连接connect...to/with...把…分成…o...承担不起做某事can’taffordtodosth.处于领先地位takethelead放弃做某事giveupdoingsth.适合做某事besuitablefordoingsth.把...奉献于（做）某事devote...to(doing)sth.更喜欢做某事prefertodo/wouldratherdosth.以高标准工作worktohighstandards担心太多worrytoomuch使某人自己更有条理getoneselfmoreorganized取决于个人品味dependon/uponpersonaltaste做演讲makespeeches接受他人的建议acceptothers’advice比起做B更喜欢做ApreferdoingAtodoingB/wouldratherdoAthandoB在做某事方面有困难havedifficulty(in)doingsth.以一个固定的顺序出现appearinafixedorder给我们身心带来平静bringpeacetoourmindandbody希望成功hopeforsuccess对你有一些帮助beofsomehelptoyou颜色的力量thepowerofcolour从事做某事practisedoingsth.感到有一点紧张feelalittlebitstressed根据accordingto知识梳理：9AUnit1Knowyourself知识清单一、icstripandWeletotheunit.1.Itsayssomepeoplearegenerous.(文章上)说有些人是慷慨的。①Thesignsays,“Nophotos”.标志上写着;“禁止拍照”②2.Itmakesthemfeelgoodtosharethingswithothers.【makesb.dosth.】【sharesth.withsb.】3.You'veeatenupmybreakfast.你已吃光了我的早餐。★【重点】eatup吃光【动副词组】→eatit/themup4.create(vt.)创造→creative(adj.)有创造力的【tive形容词后缀】5.becuriousabouteverything对一切感到好奇6.energy(不可数n.)→energetic(adj.)精力充沛的7.keepallherthingsingoodorder使她所有的东西井然有序★keep…in(good)order保持……井然有序8.showoff炫耀9.MrWuispatientenoughtorepeatgrammarrulesforus.吴老师足够有耐心为我们重复讲解语法规则。10.★eupwithnewideas=thinkofnewideas想出新主意11.bewell/veryorganized非常有条理【organized形容词:有条理的】12.make/beeagoodaccountant成为一个好会计。13.NeitherhenorIamagoodaccountant.他和我都不是一个好的会计。【谓语就近原则】★【重点】either/neither;either…or…和neither…nor区别14.It'sterribleformetoworkwithoutspeakingalldaylong.(without/before/after/by/for+Ving)二、Reading1.Peoplewhoarehappywiththeirjobs(定从)对工件满意的人bornartist一个天生的艺术家3.Hisworkshouts.他的作品很传神。【区分】①workhard工作勤奋②hardwork困难的工作4.impressthewholecountrywithcreativework(s)以他富有创造性的作品使整个国家印象深刻★impress5.winhighpraisefromtheartmunity获得了来自艺术界很高的赞誉【此句中praise为不可数名词:“赞誉,赞扬】winwonwonwinningwinnern.(胜者，赢家）【拓展】praisesb.forsth因为某事赞扬某人(praise为动词)6.giveupherjobasanaccountant放弃她作为一个会计的工作★①giveupeasily轻易放弃③giveit/themup(动副词组)7.workwithnumbersdayafterday日复一日和数字打交道8.thegeneralmanagerofthepany公司的总经理（注意：general与chief区别）9.★Lifeislikearace.Youeithertaketheleadorfallbehind.生活就像一场比赛。你要么领先要么落后。①takethelead领先【leader领导者,带路人;lead→led(过去式);leadto导致】②fallbehind落后(fallfellfallen)10.takeonnewchallengesanytime随时接受新挑战【此句中challenge为名词:挑战】11.LiuHaoisthechiefengineerofthehighspeedrailwayconnectingSunshineTowntoTianjin.刘浩是连接阳光镇到天津的高速公路首席工程师。【现在分词短语作后置定语】①ThegirlcalledLucyismysister.tuo【过分词短语作后置定语】=ThegirlwhoiscalledLucyismysister.【定语从句】②connectAto/withB将A和B连接起来12.★Tous,amissisasgoodasamile.对我们来说,差之毫厘,谬以千里。【区分】①asgoodas……两种含义:A.与……一样好;B.和…几乎一样;简直就是….②aswellas……两种含义:A.与……一样好:B.除……之外,还有……13.Wecan'taffordtomakeanymistakes.我们承担不起犯错。【affordtodosth.】14.payattentiontoeverydetail关注每个细节★payattentionto(doing)sth.注重(做)某事【此句型中to为介词】【归纳】(1)lookforwardto(doing)sth.期待(做)某事【此句型中to为介词】(2)get/beusedto(doing)sth.习惯于(做)某事【此句型中to为介词】(3)devote…to(doing)sth.奉献…..来(做)某事【此句型中to为介词】(4)preferdoingAtodoingB比起做B更喜欢做A【此句型中to为介词】15.worktohighstandards以高标准工作16.He'smodestandeasytoworkwith.他很谦虚且很容易相处。★Heiseasytoworkwith.=Itiseasytoworkwithhim.17.HeadofSunshineHospital阳光医院的头(院长)【head,chairperson,leader等表职务时,前不加冠词the】18.Asadoctor,youcan'tbetoocareful.作为一名医生,你再怎么细心也不为过。19.Carelessnesswillbeadisasternotonlytoourselvesbutalsotopatients.粗心不仅对于我们自己是一场灾难，对病人也是一场灾难。20.bewillingtoworkextrahours/workforextrahours主动乐意加班21.operateonpatients=dooperationsonpatients给病人做手术22.devotemostofhertimetoherwork把她大部分的时间投入到她的工作上【to为介词】(devote...todoing)23.★besuitableforthejob适合于这份工作【besuitablefor(doing)sth.】三、Grammar【语法】A.and,but,or和so的用法:(1)and表并列关系,肯定句中用“and”表示“和”;否定句中用“or”表示“和”。Studyhard,______yourmathwillbebetter.=Studyhard,________yourmathwillbeworse.(2)but表转折关系,不能和although/though同时使用。(3)or:①表选择关系。②否则(4)so表因果关系,不能和because同时使用。【语法】B.both…and…,notonly…but(also)…,either…or…,和neither…nor…的用法:(1)它们可以连接名词(动名词)，代词，形容词，动词和介词短语等。(2)★both…and…连接两个并列成分，如果连接两个主语，谓语动词用复数。★notonly…butalso…连接两个并列成分,如果连接两个主语,谓语动词就近原则。★either…or….连接两个并列成分，如果连接两个主语，谓语动词就近原则。★neither…nor….连接两个并列成分，如果连接两个主语，谓语动词就近原则。1.★acceptothers'advice/suggestions接受别人的建议2.thinktwice(aboutsth.)(关于某事)三思后行3.worrytoomuch担心太多【回顾】①worryaboutsth.(=beworriedaboutsth.)为某事担心4.dothedishes洗碗5.patient有耐心的→反义词:impatient没有耐心的【类似有:impolite,impossible】bepatientwith6.besuitableforbeinganartist适合于当一个艺术家四、Integratedskills1.intheChineselunarcalendar在中国农历中2.Eachoftheanimalsignsrepresentsalunaryear.12生肖中的每一个代表着农历的一年。★represent=standfor=beasymbolof代表;象征3.appearinafixedorder以固定的次序出现★appear(作系动词:呈现)eg:appearred呈现红色*appear(vi.)出现→appearance(n.)出现disappear(vi.)消失→disappearance(n.)消失4.【区分】living形容词：活着的(常作定语修饰名词，也可作表语构成系表结构)alive形容词：活着的(只能作表语构成系表结构，不能作定语修饰名词)lively形容词：生动的、充满生机的(形容课堂、城市等)(livelierliveliest）live形容词:直播的5.Peoplebornunderthesameanimalsignmayhavesimilarpersonalities.【过去分词短语作后置语】=Peoplewhoarebornunderthesameanimalsignmayhavesimilarpersonalities.【定语从句】出生在相同生肖下的人们可能有相类似的个性。【回顾】besimilarto……与…相似inall总共,总计;aboveall最重要的是;afterall毕竟、终究;firstofall首先;not…atall根本不;dependonyourdateofbirth取决于你的出生日期Ayearisdividedintoacycleoftwelvestarsigns.一年被分成十二星座的一次循环。【★divide…into把...分成……】①Pleasedividetheappleinto4parts.【主动】②Ayearisdividedintofourseasons.I【被动】9.Itisyouwhoshapeyourlifeandfuture.正是你塑造了你的生活和未来。Itis+被强调的部分+that/who+句子其它成分。→构成强调句型(强调部分是人用who，强调部分是物或其它用that)10.ItissaidthatpeoplebornintheYearoftheTigerarebrave.①Itissaid⋯+that主语从句意为：据说…②Itisreported⋯+that主语从句意为：据报道⋯insomeways在某些方面;在某种程度上【回顾】onone’swayto...在某人去某地的路上inone’sway挡路loseone’sway=getlost迷路inmanyways在许多方面bytheway顺便问一下inthisway以这种方式12.That'snotthecase.事实并不是那样。13.believeinsb.=trustsb.信任某人【believehiswords=believewhathesays相信他的话】五、Studyskills重点短语句型1.bepassedontoyoubyyourparents被你的父母遗传给你六、Task1.beafraidofmakingaspeechinfrontofmanypeople害怕在许多人面前演讲①makeaspeech做演讲2.beabsentfromschool缺课3.gethimselfmoreorganized使他自己更加有条理4.winseveralsciencepetitions赢得好几次科技竞赛5.remendhimas/tobeourmonitors推荐他做我们的班长【回顾】remendsb.as+职务;remendsb.for+奖项、荣誉6.Hehasmanystrongqualitiesfortheposition.他具有许多这个职位的突出的品质。7.themostsuitablepersontobeourmonitor做我们班长的最合适人选8.agreewithsb.同意某人的意见;9AUnit2Colours知识清单一、icstripandWeletotheunit.1.tryiton把它试穿一下【tryon动副词组,代词放中间】2.I'mnotsureifbluelooksgoodonyou.【句中if引导宾语从句,意为“是否”】★①Bluelooksgoodonyou.=Youlookgoodinblue.【on+人;in+颜色/衣服】②Idon'tknowifmyfatherwillebacktomorrow.【句中if引导宾语从句，意为“是否”，从句该用什么时态就用什么时态】Ifmyfatheresbacktomorrow,Iwilltellyou.【句中if条件状语从句，意为“如果”，主将/情/祈从现】3.Doyouknowhowmanycoloursthereareinarainbow?【特殊疑问句作宾语从句用陈述句语序】二、Reading1.influenceourmoods=affectourmoods影响我们的心情【influence/affect作动词】2.Youmaywonderwhether/ifitistrue.【宾从】)你可能想知道这是否是真的。3.makeusfeelsleepy让我们感到困倦sleepiersleepiest4.feelrelaxed/感觉很放松①relaxed放松的(修人);②relaxing令人放松的(修物)③relaxmyself放松我自己5.bepaintedblue被刷成了蓝色【peace(n.)平静,和平→peaceful(adj.)平静的、安宁的、和平的→peacefully(adv.)平静地、安宁地】7.thecolourofpurity纯洁的颜色【pure(adj.)纯洁的、纯净的→purity(n.)纯洁】8.anothercalmcolour另一种平静的颜色【calm作形容词】【拓展】keepcalm保持冷静(calmadj.);calmdown冷静下来(calmv.)calmn.：平静的时期；宁静的状态；9.ontheirweddingday在他们婚礼当天【atone'swedding在某人的婚礼上】.10.preferwarmcolors更喜欢暖色★①prefer更喜欢=like…better【prefer过去式:preferred】②prefertodosth.更喜欢做某事【否定:prefernottodosth.宁愿不做某事】③preferAtoB=likeAbetterthanB更喜欢A而不喜欢B【此句型中to为介词】④preferdoingAtodoingB更喜欢做A而不喜欢做B【此句型中to为介词】=wouldratherdoAthan(do)B【如果两个do为同一个动词,后一个do可省略】⑤prefertodoAratherthandoB更喜欢做A而不喜欢做B【此句型使用较少】11.tocreateawarmandfortablefeeling为了创造一种温暖而舒适的感觉【不定式表目的】12.cheersb.up使某人振作起来/快乐起来【动副词组】13.remindmeofawarmsunnyday使我想起一个阳光明媚的日子★①remindsb.ofsth.使某人想起某事=makesb.thinkofsth.②remindsb.todosth提醒某人做某事14.thecolourofwisdom智慧之色【wise(adj.)wisely(adv.)wisdom(n.)】15.hopeforsuccess希望成功=hopetosucceed=hopetobesuccessful16.Redmaybeofsomehelptoyou.=Redmaybehelpfultoyou.★be(beof+n.=be+adj)17.Wearingredcanalsomakeiteasiertotakeaction.穿红色让(人们)更容易采取行动。(主语)(谓)(形宾)(宾补)(真宾)havedifficultymakingadecision做决定有困难=havedifficulty/trouble/problemswithsth.★②decidetodosth.=makeadecisiontodosth.=makeupone'smindtodosth.决定做某事19.requirestrengthineitherbodyorbody在身体上或精神上需要力量★require用法与need相似②sth.requiredoing=sth.needdoing=sth.require/needtobedone(被动)三、Grammar一、宾语从句的概念在复合句中做宾语的句子叫做宾语从句，宾语从句一般位于及物动词、介词和形容词之后。宾语从句的基本构成：引导词+主语+谓语+其他二、宾语从句的引导词宾语从句的引导词有三种：1.that;2.whether/if;3.wh,how,他们的使用情况各不相同。1.that(that用来引导陈述句意义的宾语从句that在句中无词义，不充当句子成分，常省略。)陈述句的基本构成：主语+谓语+其他whether/if（是否）用来引导一般疑问句意义的宾语从句。whether/if要译成“是否，是不是”，不充当句子成分，不能省略，说明对陈述的事实不明确或不清楚。常用在ask,wonder,can/couldyoutellme等后。注意：只能用whether的情况(口诀：前方有介词，后有不定式（todo）,whetherornot,千万要一致)(1)当与ornot连用时，whether…ornot.【例句】Idon’tknowwhetherhelikesplayingbasketballornot.(2)前面有介词【例句】Weareworriedaboutwhetheritwillraintomorrow.(3)whethertodo【例句】Iamthinkingwhethertobuyacar.(=IamthinkingwhetherIshouldbuyacar.)wh,how用来引导特殊疑问句意义的宾语从句特殊疑问句的基本构成：特殊疑问词+一般疑问词+主语+谓语+其他特殊疑问词做引导词，有词义，不可省略。特殊疑问词用法特殊疑问词用法what问东西where问地点who/whom问人when问时间whose问主人why问原因which问选择how问情况，方式引申：whatcolour/day/date/time…howlong/much/far/many/often…注意：if、when既能引导状语从句，又能引导宾语从句【例句】Idon’tknowifitwillraintomorrow.（是否）Iwillgofishingifitdoesn’traintomorrow.（如果）三、宾语从句的语序宾语从句的语序是陈述语序。宾语从句：引导词+主语+谓语+其他【例句】Ihearthathewillebackinonehour.疑问语序在宾语从句中要改为陈述语序疑问句语序陈述句语序areyou…youare…willyou…youwillhaveyou…youhave…do/didyou…youdo/did…canyou…youcan……………宾语从句中语序不变的情况：(1)当宾语从句为what’sthematter/what’swrong时(2)引导词在从句中做主语，语序为:引导词（主语）+谓语+其他四、宾语从句的时态(口诀：主现从任，主过从过,真理永现)1.当主句是一般现在时，宾语从句根据实际用需要的时态。2.当主句是一般过去时，宾语从句用相应的过去某种时态。原本的时态变为宾语从句的时态一般现在时一般过去时一般将来时过去将来时现在进行时过去进行时现在完成时过去完成时当宾语从句说明的是客观存在的事实或者是客观存在的真理时，就不用受到主句时态的限制，仍是用一般现在时。五、特殊情况1.宾从简化（疑问词+动词不定式）（主句主语与从句主语一致）【例句】Shedoesn’tknowhowshecanimproveherEnglish.Shedoesn’tknowhowtoimproveherEnglish.2.否定转移当主句的主语是第一人称（I、We），谓语动词是（think/believe/suppose/consider/imagine...)，常把宾语从句的否定词转移到主句中，即主句的谓语动词用否定形式，而宾语从句的谓语动词用肯定形式。六、答题技巧1.确定引导词（句意、回答）2.陈述语序3.时态、人称4.注意介词的使用【语法】重点短语句型1.influenceoureverydaylivesinmanyways在很多主面影响我们的日常生活【everyday形容词=daily日常的;】2.Itdependsonpersonaltaste.它取决于你的个人品味。3.Doeswhiteclothessuitme?白色衣服适合我吗?【区分】①sthsuitsb：某物适合某人【表示符合人的口味或颜色、服装、发型的匹配】②sth.fitsb.某物适合某人【表示尺寸、大小、形状的匹配】③sth.matchsth.某物与某物匹配,搭配得好4.beusedforcelebrations被用于庆典5.thecolouroftherulers统治者的颜色四、Integratedskills1.Discoverhowthepowerofcolourscanchangeyourmood.【宾语从句用陈述句语序】【区分】①discover发现【第一次发现别人没有发现的东西】【→discovery名词】②find发现,找到【偶然发现】③findout发现；查明【经过长时间的努力或调查最终发现】3.improveyourlife改善你的生活4.Wepromisethatthistherapycanhelpyouchangeyourmood,oryouwillgetyourmoneyback①promise用法:1)promise(sb.)todosth.承诺(某人)做某事【promise作动词】2)promise+that宾从【promise作动词】3)makeapromise许诺【promise作名词】②getyourmoneyback要回你的钱【getsth.back动副词组】5.cheeryouup使你快乐/振作起来【cheersb.up动副词组】6.feelstressed感到有压力【stress不可数名词:压力→stressed形容词:有压力的】(morestressed(比较级））7.Shesuggestsdifferentcolourstodifferentpeople.她把不同的颜色建议给不同的人。★①suggest动词:建议;名词(可数):suggestion(s)2)suggest(sb.)(某人)做某事★②advise动词:建议;名词(不可数):advice8.★wouldrather宁愿,更喜欢【看作情态动词,后面必须接动词原形】②wouldratherdoAthan(do)B宁愿做A而不喜欢做B=preferdoingAtodoingB【如果两个do为同一个动词，后一个do可省略】五、Studyskills1.accordingtoaEuropeanstory根据一个欧洲的故事2.bedressedinpink=wearpink=beinpink穿着粉红色衣服3.havethepowertodriveevilspiritsaway有驱赶邪恶灵魂的力量drivesb.away驱赶某人【动副词组】4.dressbabyboysinblue给小男孩们穿蓝色衣服【dresssb.inblue】六、Task1.feelalittlebitstressed感到有点紧张【回顾】①alittle=abit+形容词/副词(原级或比较级)②alittle=abitof+不可数名词③alittlebit+形容词/副词(原级)即时训练：（习题来自开明中学平时学案、单元测、大考试卷）Ⅰ.根据句意或汉语提示用所给词的适当形式填空。Thesurgeon's__________(care)ledtothefailureoftheoperation.Thescientistswhodevotethemselvestoourcountryshould__________(尊敬)byus.ThebookIpayattentionto__________(sell)outalready.Whatelseshouldwepayattentionto__________(improve)English?__________withtheputer,themouseisveryuseful.(connect)__________thevillagewiththebigcity,anewroadwillbebuilt.(connect)MrWangis__________(patient)withussometimes,andwefeelsad.Thisis__________(live)partyIhaveeverbeento.The__________(power)ourmotherlandis,themoreconfidentweare.Howmanypartscanthestory__________(divide)into?Three.Myunclespentasmuchtimeashecould__________(study)Chineseculture.Therainbowismadeupofsevencolors__________(include)redandorange.It'ssaidthatit'sdifficulttochangethepersonality__________(形成)bynature.Thewriter’sideas____________(shape)byhisexperiencessincehesurvivedWorldWarⅡ.Whichisthebestway__________(解决)theproblem?Wearelookingforwardto__________(答复)fromtheblogpany.Her__________(colour)sweatersaremadeofwoolandcostalot.Thispolicy(方针)____________(influence)millionsofpeople'slivesinthelast10years.Afteryearsofwars,thepeoplelongfor(渴望)____________(和平).WhenTina'sgrandpadied,shecriedwithgreat____________(sad).Herlittlesisterissoshythatshecan'texpressherown____________(feel)inpublic.Asweallknow,thesungivesoutlightand____________(hot).Notonlyskillsbutalsohardwork____________(需求)tolearnEnglishwell.Hislowmarksintheexammadehimfeelmuch____________(stress).Thecolorblue____________(believe)tohavethepowertodriveevilspiritsawaymeinthepast.II.单项选择。()26.Parentsoftenthinktheirchildrenare__________old__________maketheirowndecisions.A.too;toB.so;thatC.not;enoughtoD.such;that()27.Icouldspeak______French______Chinese,soIhaddifficultytalkingwiththeFrenchmanandtheChinesekid.A.notonly;butalsoB.either;orC.neither;norD.both;and()28._______ofthemhasacar.Idon’thaveone,_______.Neither;eitherB.Either;neitherC.Neither;neitherD.Either;either()29.ItisI________againsttheplanbecauseitsoundsimpossibletocarryout.A.thatisB.whoamC.WhoareD.thatare()30.Wewouldlike________her________thisyear’sYoungStarAward.A.toremend;asB.remending;forC.toremend;forD.remending;as()31________myhomeworkathome.Don'tforget________ittoschooltomorrow.A.forgot;tobringB.left;tobringC.forgot;totakeD.left;totake()32.Whatdidyourfathersaytoyoujustnow?Heaskedme__________.A.thatIwouldliketoseeamovieB.whichcityIwouldspendmyholidayC.ifIenjoyedmyselfatthepartyD.whendidIattendthegraduationparty()33.WhatshouldIpayattentionto_______progress(进步)inmystudy?Sometimeshouldbedevoted_______everydayplansbeforestudy.A.making;tomakeB.making;tomakingC.tomake;tomakeD.tomake;tomaking()34.Ihardlydoubt________Lindalikestheredcoat.A.thatB.ifC.weatherD./()35.__________youweren'tthere,Ileftamessageonthedesk.A.AsB.LaterC.BeforeD.After()36.Wouldyoulikesomethingtodrink?Iprefercoffee__________sugar,thanks.A.toB.inC.withD.on()37.Readingmakesmycousin__________whilewalkinghelpsme__________.A.torelax;torelaxB.relaxed;relaxC.relax;relaxedD.relaxed;relaxed()38.Inancienttimes,teen'smainjobwas__________inthefields.Yes!Thatwas__________theyhopedforgoodweather.A.working;whyB.working;becauseC.towork;whyD.towork;because()39.IcanfinishtheworkifI_________anothertwodays.A.offerB.amofferedC.willofferD.willbeofferedIII.翻译句子。40.珍妮丝的一切东西井然有序，并且她经常提出新想法。AllJanice’sthings________________________andsheoften_____________________newideas.41.老师们已经注意到提升教学技能了，因为他们承担不起犯任何错误。Theteachers____________________theirteachingskillsbecausethey_______________________.42.我建议他午餐后洗碗，但他没有接受我的建议。Iadvisedhim_____________________afterlunch,buthedidn't____________________________.438.在许多方面，我们的穿衣风格取决于个人品味。_________________________,ourdressingstyle____________________________________.44.米莉很有条理，她适合做一名老师。Millieis_____________________thatshe____________________________ateacher.45.我们的班长习惯领先，他不喜欢落后别人。Ourmonitorgetsusedto______________________.Hedoesn’tlike________________________.IV.阅读理解EachyearonFeb..21,UNESCOholdsanInternationalMotherLanguageDay(IMLD).Theeventistohelppeopletopayattentiontothedisappearanceoftheworld'slanguages.Manyofthemaredisappearingeachyear.UNESCOseesthisasaterriblefact.Whathappenswhenalanguagediesout?Somethinggreatislost——notjustsoundsandmarks,butalsothewaythatpeopleunderstandtheworldandmunicatewitheachother:Wekeepdifferentculturesandtraditionsthroughlanguages.Whenalanguageiskilled,allthesearekilledtoo.ThroughIMLD,moreandmorepeopleetorealizetheterriblesituationandtrytostopit.Google's2018EndangeredLanguagesProjectisagoodexample.Manyspeakersandprotectorsofendangeredlanguagesupload(上传)textsandvideostotheprojectwebsite.Theywanttointroducethewaythatpeoplemunicateandexpressthemselvesaroundtheworld.TheMymiamiProjectisthesamekindofefforttorevive(复活)thelanguagespokenbytheMiamitribes(部落)oftheUnitedStates..Projectmembersworktoencourag