现在完成时-备战2025-2026学年八年级英语上学期期末语法全解（沪教牛津版）

ENGLISH初二上系列资料（沪教牛津版） Chapter1现在完成时 考频分析 现在完成时是中考英语语法的核心模块，考频占语法总量的15%左右，贯穿试卷所有核心题型：单项选 择(2-3题)、完形填空(2-3题)、语法填空(1-2题)、书面表达（核心考察，直接影响句子时间关系表达 的准确性)。在语境理解类题目中，现在完成时与一股过去时的辨析、时间状语的搭配及主谓一致往往是 解题关键。 考查内容 中考对现在完成时的考察聚焦三大维度，覆盖基础用法与语境应用： ·基本结构构成：肯定句、否定句、疑问句的主谓结构形式，助动词have/has与过去分词的搭配规则； ·时间状语辨析：for+时间段、since+时间点、already、yet、just、ever、never等标志词的语境运用； ·核心用法场景：表示过去发生并持续到现在的动作或状态，过去动作对现在造成的影响或结果，以及与 一般过去时的用法区别。 精讲精练 知识点一：现在完成时的构成及用法 ·基本构成 -肯定句：主语+have/has+动词过去分词(V-ed)→例句：I have finished my homework.(第一人称 用have)/She has lived here for5 years..(第三人称单数用has) -否定句：主语+haven't/hasn't+动词过去分词→例句：They haven't seen the film yet../He hasn't called me today. -疑问句：Have/Has+主语+动词过去分词→例句：Have you ever been to Beijing?/Has he finished his work? ·核心用法 -表示过去发生的动作对现在造成的影响或结果（常与already,.yet,just,ever,never等词连用）一例 句：I have already eaten breakfast.(现在不饿)/She hasn't finished her homework yet..(现在还不 能玩) 一表示从过去某一时间开始，持续到现在的动作或状态（常与for+时间段、since+时间点从句连用） →例句：We have studied English for3 years./He has lived in Shanghai since2o18. 【即学即练】 1.【基本构成】请选择正确的助动词完成句子：He_(has/have)lived here for5 years. 2.【否定句构成】将句子改为否定句：I have finished my homework.→ 3.【疑问句构成】将句子改为一般疑问句：She has seen this movie.→ 4.【核心用法辨析】选择合适的时间状语：We have studied English_(for/since)2019. 5.【影响与结果用法】判断句子含义：I have lost my key.该句表示0 A.我过去丢了钥匙（现在找到了） B.我丢了钥匙（现在没钥匙开门） C.我将要丢钥匙 D.我正在丢钥匙 初二上」英语|沪教牛津版 ENGLISH-初二上系列资料（沪教牛津版） 知识点二：必考时态和被动语态 ·现在完成时（过去动作对现在的影响/动作持续到现在） 1.时间标志词 -already(已经，肯定句)、yet(还，否定句/疑问句)、for+时间段（如for3 years)、since+时 间点（如since2020)、so far(到目前为止） 2.主动语态 -结构：主语+have/has+动词过去分词（主语单数I三单用has,复数/第一人称用have) 一例句： *口I have finished my homework already..(第一人称，用have+finished) *☐He has lived here for5 years.(三单主语，用has+-lived) 3.被动语态 一结构：主语+have/has been+动词过去分词(have/has been体现“现在完成时”，过去分词体现 “被动”) 一例句： *口My homework has been finished by me already.(主语不可数，用has been+finished的过去 分词finished) *口This house has been lived in by him for5 years..(主语单数，用has been+-lived的过去分词 lived;ive是不及物动词，需加in)》 知识点三：现在完成时 ·基本结构 -肯定句：主语+have/has+过去分词(done)→例句：I have finished my homework.(我已经完成作 业了。)》 -否定句：主语+haven't/hasn't+过去分词(done)一例句：She hasn't seen this movie yet.(她还没 看过这部电影。) -一般疑问句：Have/Has+主语+过去分词(done)?→例句：Has he arrived at the station?(他已经 到车站了吗？) ·时间标志词（中考必背） 1.already(已经，用于肯定句)→例句：They have already left for Beijing: 2.yet(还，用于否定句/疑问句)→例句：Have you finished the work yet? 3.just(刚刚)→例句：I have just eaten breakfast. 4.ever(曾经)→例句：Have you ever been to Shanghai? 5.never(从不)→例句：He has never told a lie. 6.since+时间点（自从…以来）→例句：Ne have lived here since2010. 7.for+时间段（持续…时间）→例句：She has studied English for5 years.. 8.recently(最近)→例句：They have visited the museum recently. ·核心用法（中考易错） 1.表示过去发生并持续到现在的动作或状态→例句：My grandparents have lived in this village all their lives. 2.表示过去发生的动作对现在造成的影响或结果→例句：I have lost my key,.so|can't open the door.. 3.与"lt's the first time..”结构连用→例句：It's the first time she has traveled alone. 4.短暂性动词与时间段连用需转换（如：buy→have,borrow→keep)→错误：I have bought this book for3days.→正t确：I have had this book for3days. 初二上丨英语|沪教牛津版 ENGLISH-初二上系列资料（沪教牛津版） 考法一：基本结构与动词形式 ·核心：根据主语人称和数，选择正确的助动词(have/has)及动词过去分词形式 ·真题1（语法填空）： She_(live)in this city since 2015. -答案：has lived解析：主语为第三人称单数，用has;live的过去分词为lived,且句中”since2015” 提示用现在完成时。 ·真题2（单项选择）： -Wealready_(finish)our project. A.have finish B.has finished C.have finished D.will finish -答案：C解析：主语为复数，助动词用have;finish的过去分词为finished,already提示用现在完成 时。 考法二：现在完成时主动与被动语态转换 ·核心：根据动作的执行者与承受者关系，将主动语态句子转换为被动语态，注意保持现在完成时结构及 不及物动词的介词搭配 ·真题1（句型转换）： -I have finished my homework already.(改为被动语态) -答案：My homework has been finished by me already..解析：原句为现在完成时主动语态，被动语态 结构为“主语+have/has been+动词过去分词”；主语“my homework”为单数，用has been,finish 的过去分词为finished,保留时间标志词“already”。 ·真题2（单项选择）： This houseby him for 5 years. A.has lived B.has been lived C.has been lived in D.lived -答案：C解析：由时间标志词“for5 years”和主语“this house”(动作承受者)可知用现在完成时被 动语态，结构为has been+过去分词；live是不及物动词，需加介词in,完整结构为has been lived ino 考法三：现在完成时主动与被动语态的综合运用 ·核心：结合时间标志词判断现在完成时，区分主动与被动语境，掌握主动结构(have/has+过去分词)和 被动结构(have/has been+过去分词) ·真题1（单项选择）： My homework__yet.I need to finish it quickly. A.hasn't finished B.haven't finished C.hasn't been finished D.wasn't finished 一答案：C解析：主语“my homework”是动作“finish”的承受者，需用被动语态；由时间标志词“yet” 可知用现在完成时，主语为不可数名词，结构为“has been+过去分词”，finish的过去分词为finished。 ·真题2（语法填空）： -These books _(keep)in the library for over 10 years.Many students have read them. -答案：have been kept解析：主语“these books'”是动作“keep”的承受者，用被动语态；由时间标 志词“for over10 years”可知用现在完成时，主语为复数，结构为“have been-+过去分词”，keep 的过去分词为kept。 初二上英语|沪教牛津版 ENGLISH初二上系列资料（沪教牛津版） 解题小妙招 现在完成看标志，since for already yet; 主动结构主谓宾，have has加过分； 被动语态be助动，have has been跟过分； 不及物动要注意，介词搭配不能弃； 主语承受用被动，执行者现用主动。 真题演练 演练一：单项选择试题（共10题） 1.We _English for six years. A.have learn B.has learned C.have learned D.will learn 2.My father in this factory since 2018. A.work B.works C.has worked D.will work 3.-Have youbeen to the Great Wall?-No,never. A.ever B.yet C.already D.just 4.This storybook_by my sister for a week A.has kept B.has been kept C.kept D.is kept 5.They the project so far. A.finish B.finished C.have finished D.will finish 6.The classroom_by students already. A.has cleaned B.has been cleaned C.cleaned D.is cleaning 7.-she_her homework yet?-Yes,she has. A.Has;finish B.Have;finished C.Has;finished D.Did;finish 8.Ithis bike for three years. A.have bought B.bought C.have had D.keep 9.These letters_to the post office by Tom already. A.have sent B.has been sent C.have been sent D.sent 10.He _in this city since he was born. A.lives B.lived C.has lived D.will live 演练二：填空试题（共10题） 1.I_(read)this novel three times.(提示：现在完成时，主语第一人称) 2.We_(not see)him yet.(提示：现在完成时否定句，主语复数) 3._you ever_(visit)the Science Museum?(提示：现在完成时疑问句) 4.This song_(sing)by many people so far..(提示：现在完成时被动语态，主语单数) 5.She_(lve)here since2010.(提示：现在完成时，主语第三人称单数) 6.My brother_(finish)his homework already.(提示：现在完成时，主语第三人称单数) 7.These flowers_(water)by my mother just now.(提示：现在完成时被动语态，主语复数) 8.They_(study)English for five years.(提示：现在完成时，主语复数) 9.The door_(not open)for a long time.(提示：现在完成时被动语态否定句，主语单数) 10._the work_(do)yet?(提示：现在完成时被动语态疑问句) 演练三：语法填空试题（共10空） Tom is a student in Grade 8.He_(learn)English for four years.His teacher often says English is important,so he_(read)many English books so far.Last year,his school library_(build),and many new books_(buy)for students.Tom_(borrow)three books from the library already. Last week,Tom wrote a story about his family.He_(finish)it yesterday,but his teacher said it_(not check)yet.So Tom_(decide)to revise it today.His story_(like)by many classmates when he reads it aloud. Tom hopes he(improve)his English more in the future. 答案 演练一：单项选择 1.C2.C3.A4.B5.C6.B7.C8.C9.C10.C 演练二：填空试题 1.have read 2.haven't seen 3.Have;visited 4.has been sung 5.has lived 6.has finished 7.have been watered 8.have studied 9.hasn't been opened 10.Has;been done 演练三：语法填空 1.has learned 2.has read 3.was built 4.were bought 5.has borrowed 6.finished 7.hadn't been checked 8.decided 9.is liked 10.will improve 初二上丨英语|沪教牛津版