【新教材】2026年人教版九年级上册英语 Unit 1 The Changing World 语法精讲与精练（含答案）

第第页【新教材】2026年人教版九年级上册英语Unit1TheChangingWorld语法精讲与精练本单元核心语法：现在完成时与一般过去时的用法对比；usedtodo/beusedtodoing/beusedtodo辨析。一、现在完成时vs一般过去时【核心规则】现在完成时（have/has+过去分词）强调过去动作对现在的影响或持续至今的状态；一般过去时仅描述过去某时发生的动作或状态，与现在无关。对比项一般过去时现在完成时核心含义过去某时发生的动作或状态过去动作对现在的影响或持续至今时间状语yesterday,lastweek,in2015,ago等明确的过去时间already,yet,just,ever,never,since+时间点,for+时间段与现在关系与现在无关与现在有密切关联动作是否结束动作已结束可能已结束（影响现在）或仍在继续例句Ilivedherein2015.（仅描述过去）Ihavelivedheresince2015.（持续至今）【易错点】现在完成时不能与明确的过去时间状语（如yesterday,lastweek,in2020,threedaysago等）连用。例如：Ihaveboughtabookyesterday.（×）→Iboughtabookyesterday.（√）【重点】havebeento/havegoneto/havebeenin辨析：havebeentosp.表示"去过某地"（已回来）；havegonetosp.表示"去了某地"（还没回来）；havebeeninsp.+时间段表示"在某地待了多久"。例1—______you______(visit)theNationalMuseum?

—Yes.I______(go)therelastweekend.【解析】第一空询问经历，用现在完成时Have...visited；第二空有明确过去时间lastweekend，用一般过去时went。【答案】Have;visited;went例2Greatchanges______inmyhometowninthepastfewyears.A.tookplaceB.havetakenplaceC.takeplaceD.willtakeplace【解析】时间状语inthepastfewyears（在过去的几年里）是现在完成时的标志词，强调从过去持续到现在的变化。takeplace无被动形式，直接用现在完成时havetakenplace。【答案】B例3—WhereisMr.Wang?

—He______thelibrary.Hewillbebackinanhour.A.hasbeentoB.hasgonetoC.hasbeeninD.wentto【解析】根据Hewillbebackinanhour（他一小时后回来）可知王先生还没回来，说明"去了某地（还没回来）"，用hasgoneto。【答案】B【专项练习】1.I______(lose)mykey.Icannotopenthedoornow.【答案】havelost2.She______(visit)Parisin2019and______(be)theretwicesincethen.【答案】visited;hasbeen3.—______youever______(eat)Italianfood?

—Yes,Ihave.I______(try)itlastmonth.【答案】Have;eaten;tried4.Theoldbuilding______(pull)downlastyear,andanewpark______(build)therealready.【答案】waspulled;hasbeenbuilt5.Mybrother______thearmyforthreeyears.He______thearmyin2023.【答案】hasbeenin;joined6.—Howlong______you______(study)English?

—Foraboutsixyears.I______(start)inGrade3.【答案】have;studied;started7.Sofar,we______(learn)morethan2,000Englishwords.【答案】havelearned8.I______(read)thenovellastweek.It______(be)veryinteresting.【答案】read;was二、usedtodo/beusedtodoing/beusedtodo辨析结构含义to词性例句usedtodosth.过去常常做某事（现在不做了）不定式符号Iusedtoplaybasketballafterschool.be/getusedtodoingsth.习惯于做某事介词Iamusedtogettingupearly.beusedtodosth.被用来做某事（被动语态）不定式符号Knivesareusedtocutthings.【易错点】beusedtodoing中的to是介词，后面必须接动名词（doing），不能接动词原形！例如：Iamusedtogetupearly.（×）→Iamusedtogettingupearly.（√）【重点】usedto的否定形式：didn'tusetodo或usedn'ttodo；疑问形式：Did...usetodo?或Used...todo?例4There______asmallriverinfrontofmyhouse,butnowithasbecomearoad.A.usedtobeB.usedtohaveC.wasusedtobeD.usedtobeing【解析】表示"过去有"（现在没有了），用Thereusedtobe结构。Therebe句型表示"存在有"，不能用have。usedto后接动词原形be。【答案】A例5Mygrandfatherisusedto______(take)awalkafterdinnereveryday.【解析】beusedtodoingsth.表示"习惯于做某事"，to是介词，后接动名词。take→taking。【答案】taking【专项练习】9.Heusedto______(be)shy,butnowheisveryoutgoing.【答案】be10.Iamusedto______(read)Englisheverymorning.【答案】reading11.Woodisusedto______(make)paperandfurniture.【答案】make12.—Didyouuseto______(play)thepiano?

—Yes,butnowIambusywithmystudies.【答案】play13.Thereusedtobeacinemahere,______?（完成反意疑问句）【答案】didn'tthere/usedn'tthere14.Shehasgotusedto______(live)inthecitythoughshegrewupinthecountryside.【答案】living【Unit1综合练习】15.Inthepastfewyears,AI______(develop)rapidlyand______(change)ourlivesgreatly.【答案】hasdeveloped;haschanged16.—______you______(finish)yourhomeworkyet?

—Yes.I______(finish)itanhourago.【答案】Have;finished;finished17.Myfather______(teach)inthisschoolsince2010.He______(start)here16yearsago.【答案】hastaught;started18.Sheusedt