The Changing World (Period 3)课件2026-2027学年人教版九年级上册英语

TheChangingWorld(Period3)SectionA(GrammarFocus-4c)

人教版九年级上册英语RevisionQuiz01.ScenicSpotOurvillagehasbecomeatourist____________(景点).Itattractsmanyvisitorseveryyear.02.TransportationThenew____________(公路)connectsourtowntothecitycenter,whichmakesourtripmuchfaster.03.DigitalLifeWecanuse____________(电子支付)likeWeChatorAlipaytopayforgoodseasilywithoutcash.04.LivingConditionsThe____________(住房)conditioninourcommunityhasimprovedalotinthepastdecade.Wenowhavebiggerandbrighterapartments.05.LifeImprovementAllthesesocialandeconomicchangeshave____________(大大地)improvedourqualityoflifeandbroughtusmoreconvenience.attractionhighwaye-paymenthousinggreatlyFreetalkQ:Whathaschangedinyourlifeinthepast3years?(Thinkaboutdetails!)School&StudyHaveyouchangedyourstudyhabits?Madenewfriends?Orfoundadifferentwaytounderstandknowledge?Family&LifeHowdoyougetalongwithyourparentsnow?Aretherenewfamilytraditionsorresponsibilitiesyou'vetakenon?Hobbies&GrowthHaveyoupickedupanewskill(likeplayingasportorinstrument)?Whatactivitiesdoyouenjoymorenow?digital/ˈdɪdʒɪtl/词性：形容词(adj.)释义：电子的；数字的。指与计算机、数字技术或电子设备相关的事物。audio/ˈɔːdiəʊ/词性：形容词(adj.)/名词(n.)释义：音频的；音频。可指声音的、听觉的，也可指代声音信号或录音制品。dirt/dɜːt/词性：名词(n.)基本含义：泥土，尘土；污物，烂泥。用法提示：常用来形容不干净的东西，也可用于口语中表示“丑闻”或“坏话”。track/træk/n.(名词)小路；轨道可指林间供人行走的狭窄小路，也可指火车等交通工具行驶的轨道。Example:Thereisanarrowtrackthroughtheforest.翻译：森林里有一条狭窄的小路。wide/waɪd/adj.(形容词)宽的；宽阔的用来描述物体从一边到另一边的距离大，反义词为narrow（狭窄的）。Example:Thenewroadisverywide.翻译：这条新修的路非常宽阔。LearningTip:记忆"track"时联想“林间小道”和“火车轨道”的画面；"wide"常用来修饰道路、河流等，可结合其反义词"narrow"一起记忆加深印象。Fillintheblankswiththecorrectwords.digitalaudiodirttrackwide01.The__________roadcanhave6lanes.Itismuchlargerthananarrowstreet.02.Iliketolistento__________bookswhenI'mrunning.Idon'thavetolookatthepages.03.Thekidsgot__________ontheirshoesafterplayingoutsideinthegardenallafternoon.04.Wefollowedasmall__________upthehill.05.Thisisa__________camera,notafilmcamera.ChecktheAnswers01.wide"Theriveristoowidetoswimacross."Itdescribessomethingthathasalargedistancefromsidetoside.02.audio"Theaudiosysteminthehallisexcellent."Itreferstothesoundthatisrecorded,transmitted,orreproduced.03.dirt"Hewipedthedirtoffhisshoes."Itmeansanysubstancesuchasmudordustthatmakessomethingunclean.04.track"Sheranaroundthetrackforexercise."Itisapath,oftencircular,usedforracesorforwalking/runningforexercise.05.digital"Weliveinadigitalworld."Itrelatestousingcomputertechnologyanddatarepresentedasaseriesofdigits(0sand1s).LookandFind一般过去时(SimplePast/Usedto)Hebecameagoodfriendabout20yearsago.

（强调过去的某个具体时间点发生的动作）Weusedtohavetotravelfar,andmanypeopleusedtoworkinbigcities.过去人们常常要远行，很多人都曾到大城市务工。现在完成时(PresentPerfectTense)Theyhaven'tseeneachotherforages!Ourvillagehasjustbuiltanewhospital.

（强调过去的动作对现在造成的影响或结果）Nowmoreofthemhavecomebacktothevillagetoliveandwork.如今越来越多的人回到村里生活、工作。ThinkingTime:Canyoufindthedifferences?

Payattentiontothetimeexpressionsandthefocusoftheverbs(pasttimevs.presentresult).LookandFindReadthesentencesandcircletheverbs.Payattentiontotheverbtenses.4aChecktheanswers.4a01.核心构成Structure基本公式：have/has+动词过去分词(V-pp)注意：主语为第三人称单数(He/She/It)时用has；其余人称(I/You/We/They)用have。02.核心用法Usage主要强调动作发生在过去，但它的影响或结果持续到现在。动作的时间点不重要，重要的是对当下的作用。03.常见标志词Keywords时间状语：already,yet,just,ever,never持续时间：for+时间段/since+时间点Ourvillagehasjustbuiltanewhospital.解析：强调“建医院”这个过去的动作，现在的结果是“我们村现在有了新医院”。关键词just表示动作刚刚发生。Theyhaven'tseeneachotherforages!解析：强调“没见面”的状态从过去持续到现在，且持续了很久。关键词forages表示动作持续的时间段。GrammarFocus：PresentPerfectTenseGrammarFocus：usedto核心概念：PastHabits&States表示过去经常发生的动作或过去存在的状态，暗示现在已经不再发生或不再存在。强调“今昔对比”的变化。01.肯定句主语+usedto+动词原形(do)02.否定句主语+didn'tuseto+动词原形03.疑问句Did+主语+useto...?01.LifeinthePastWeusedtohavetotravelfartoseeadoctor,butnowwehaveaclinicnearby.02.WorkChangesManypeopleusedtoworkonlyinbigcities,butnowremoteworkisbecomingmorepopular.03.PersonalChangeIdidn'tusetolikevegetableswhenIwasachild,butnowIeatthemeveryday.一般过去时(SimplePast)▍核心用法表示过去某个特定时间发生的动作或存在的状态，强调动作已经发生并结束，与现在无关。▍基本结构主语+动词的过去式(V-ed)；疑问句/否定句借助did/didn't。标志词：yesterday,...ago,lastweek/year,in1990例句：Iwenttothemuseumwithmyfriendyesterday.(我昨天和朋友去了博物馆)GrammarFocus：TenseComparisonGrammarFocus：TenseComparisonUsedto句式▍核心用法表示过去经常发生的动作或存在的状态，但现在已经不再发生或存在了，强调“今昔对比”。▍基本结构主语+usedto+动词原形(V)；否定形式：didn'tuseto/usednotto。核心点：侧重于强调“过去是这样，现在不是了”，暗含对比。例句：Sheusedtoliveinthecountryside,butnowshelivesinthecity.(她过去住乡下，现在住城里)GrammarFocus：TenseComparison现在完成时(PresentPerfect)▍核心用法表示过去的动作对现在造成的影响或结果，或动作从过去一直持续到现在，强调现在的关联。▍基本结构主语+have/has+动词的过去分词(V-pp)；have用于I/You/We/They，has用于第三人称单数。标志词：already,yet,just,ever,never,since,for...例句：Ihavefinishedmyhomeworkalready,soIcanplaygamesnow.(我已经完成作业了，所以现在可以玩游戏)GrammarFocus：GrammarTips01.现在完成时口诀：过去发生，影响现在，用完成时。核心强调动作对当下造成的结果或影响，而非动作本身何时发生。02.Usedto结构口诀：过去常常，现在不做，用usedto。专门用于描述过去的习惯或状态，且明确暗示这种习惯在现在已经终止或改变。03.一般过去时口诀：过去具体某时，用过去时。强调动作发生在过去特定的时间点，通常有明确的过去时间状语（如yesterday,in2010）。Remember:时间状语辨析是关键！for+时间段(e.g.,for5years)，表示动作持续多久；since+时间点(e.g.,since2018/sinceIleftschool)，表示动作从何时开始。

典例点拨Myhometown________alotinthepast10years.A.changesB.changedC.haschanged句意：我的家乡在过去10年里发生了很大的变化。强调过去的动作对现在造成的结果。时间状语“inthepast/last+时间段”是现在完成时的高频标志词，选C。

典例点拨There________asmallparkhere,butnowthereisabigsupermarket.A.usedtobeB.usetobeC.isusedtobe句意：过去这里有一个小公园，但现在这里是一家大型超市。usedtodo强调“过去的习惯或状态”，暗含“现在已经改变”，解题关键在于抓住题干中“butnow”的时间对比提示。选A。

典例点拨—______you______tothenewlibraryyet?—Yes,Iwenttherelastweek.A.Did;goB.Have;beenC.Do;go关键词“yet”是现在完成时的重要标志，常用于否定句和疑问句末尾，强调“动作是否已经发生”。同时“havebeento”表示“去过某地”，暗示现在已经回来了，符合对话逻辑。选B。Completetheconversationwiththecorrectformsoftheverbsinbrackets.4bA:______you______(be)tothenewlibraryyet?B:No,I______(notknow)therewasanewlibrary.Whendidit______(open)?A:It______(open)lastFriday.I______(go)therewithmygrandpaonSaturdaynight.B:______you______(like)it?A:Ofcourse!It’sthemosthigh-techlibraryI______ever______(visit).B:Oh,what______you______(see)there?Completetheconversationwiththecorrectformsoftheverbsinbrackets.4bA:TherearesectionswithbooksaboutscienceandChineseculture,aswellasahugesectionwithchildren’sbooks.Ialso______(read)somedigitalbooksonthecomputer.Mygrandpa______(listen)tosomeaudiobooksbecausehecan’tseewell.B:Cool!I______(bring)mylittlebrothertheretomorrow.Checktheanswers.4bA:Haveyoubeentothenewlibraryyet?B:No,Ididn’tknowtherewasanewlibrary.Whendiditopen?A:ItopenedlastFriday.IwenttherewithmygrandpaonSaturdaynight.B:Didyoulikeit?A:Ofcourse!It’sthemosthigh-techlibraryIhaveevervisited.B:Oh,whatdidyouseethere?A:TherearesectionswithbooksaboutscienceandChineseculture,aswellasahugesectionwithchildren’sbooks.Ialsoreadsomedigitalbooksonthecomputer.Mygrandpalistenedtosomeaudiobooksbecausehecan’tseewell.B:Cool!Iwillbringmylittlebrothertheretomorrow.Completethepassagewiththecorrectformsoftheverbsinbrackets.Whyarelocalpeoplericherandhappierthanbefore?4cInthepast,it______(be)difficulttotravelinGuizhou.Inmanyplaces,thereusedto______(be)nobridgestocrossovermountainsandrivers,andmostroadswerejustdirttracks.This______(make)itdifficultforlocalstobringproductstothemarketortodevelopindustry.Completethepassagewiththecorrectformsoftheverbsinbrackets.Whyarelocalpeoplericherandhappierthanbefore?4cNowgreatchanges______(take)place.Thegovernment______(build)thousandsofkilometresofhighways,railways,andwideroads.Ithasalsobuiltmanybridgesovermountainsandrivers.Ajourneythatusedto______(take)adaynowtakesonlyafewhours.Asaresult,thelivesoflocalpeople______(improve).Theyaremuchricherandhappierthantheyonce______(be).Checktheanswers.4cInthepast,itwasdifficulttotravelinGuizhou.Inmanyplaces,thereusedtobenobridgestocrossovermountainsandrivers,andmostroadswerejustdirttracks.Thismadeitdifficultforlocalstobringprodu