Unit1语法专项课件-现在完成时2026-2027学年人教版英语九年级上册

这是一份初中英语同步教学课件，针对新人教版九年级上册Unit1现在完成时语法专项，包含全解精讲与分层练习。内容涵盖定义、四种句式、过去分词变化、四大核心用法、三组易混语法辨析及易错点总结，为学生构建系统学习支架。 资料特色突出，注重语言能力培养，通过例句对比、标志词归纳提升语法应用能力，结合中考高频考点如最高级固定句式强化应试技能。创新采用分层练习设计，从填空到改错逐步进阶，培养学生思维品质与学习能力，助力教师高效教学，帮助学生夯实语法基础应对升学考试。

教学课件 新人教版九年级上册 Unit1 语法专项 —— 现在完成时 全解精讲+分层练习 1 1.掌握现在完成时定义、四种基础句式结构 2.分清动词过去分词规则与不规则变化 3.熟练运用现在完成时四大核心用法 4.区分三组易混语法：时态、地点短语、used to do 5.规避瞬间动词与时间段搭配易错点 学习目标 现在完成时核心定义 1.描述过去发生的动作，与当下存在紧密联系 2.三层核心语义： ① 过去动作，对现在产生结果影响 ② 动作从过去持续到现在，仍可延续 ③ 人生迄今为止的过往经历 3.关键判断：无明确过去时间，侧重现在状态 句式 1—— 肯定句结构 基础公式：主语 + have /has + 动词过去分词 (done) 1.I/you/we/they/ 复数名词 → 搭配 have 2.he/she/it/ 单数名词 / 不可数名词 → 搭配 has 例句：We have learned English for 3 years. 例句：She has finished her homework. 句式 2—— 否定句结构 公式：主语 + have/has + not + done 缩写形式：have not = haven’t；has not = hasn’t 例句：I haven’t read this English novel. 例句：He hasn’t visited his old teacher yet. 句式 3—— 一般疑问句 结构：Have / Has + 主语 + 过去分词？ 肯定回答：Yes, 主语 + have/has. 否定回答：No, 主语 + haven’t/hasn’t. 例：—Have you ever joined an English speech contest? —Yes, I have. 句式 4—— 特殊疑问句 结构：特殊疑问词 + Have/Has + 主语 + done 常用疑问词：How long / How many times / What 例句：How long have you studied English? 例句：How many times has she been abroad? 过去分词规则变化（四类） 1.一般动词直接 + ed：work→worked 2.e 结尾只加 d：live→lived 3.辅 + y 结尾，变 y 为 i+ed：study→studied 4.重读闭音节双写尾字母 + ed：stop→stopped 高频不规则过去分词（必背） go→gone；see→seen；do→done；be→been write→written；forget→forgotten；find→found read→read（拼写不变，读音改变） 提示：无统一规则，单独背诵默写 用法 1 过去动作，对现在有影响 核心逻辑：不强调动作何时发生，只看当下结果 标志词：just, already, yet 1.already：肯定句，句中 / 句末 2.yet：否定、疑问句，仅放句末 3.just：置于 have/has 后，表刚刚完成 用法 1 例句 1.I have just memorized 50 new words. （刚背完单词，现在掌握新词） 2.They have already prepared the English report. （报告已写完，无需再准备） 3.We haven’t found good learning methods yet. （目前依旧没有找到合适方法） 用法 2 动作从过去持续至现在 标志词：for + 时间段；since + 时间点 / 过去句子 1.for six months 长达六个月 2.since 2020 自从 2020 年 3.since I was twelve 从我十二岁起 例句：He has lived in this town since 2019. for/since 搭配时间段，必须使用延续动词 瞬间动词 延续变形 含义 buy have 购买 leave be away 离开 borrow keep 借用 join be in 加入 错误：I have bought the pen for a month. 正确：I have had the pen for a month. 重难点：瞬间动词 vs 延续动词 用法 3 描述人生过往经历 语义：到目前为止曾经 / 从未做过某事 标志词：ever, never, before, once/twice 例句 1：I have never talked with foreign teachers. 例句 2：We have watched this English movie twice. 用法 4 最高级固定句式（中考高频） 固定句型：It’s the + 序数词 / 最高级 + that 从句 从句强制使用现在完成时 例句：This is the most useful grammar that I have learned. 翻译：这是我学过最实用的语法 辨析 1 现在完成时 vs 一般过去时 1.现在完成时：关联现在，无具体过去时间 标志：for/since/ever/already/yet 2.一般过去时：仅描述过去，与现在无关 标志：yesterday, …ago, last week, in 2020 黄金规则：出现具体过去时间，禁用现在完成时 时态辨析例句对比 1.I visited the English corner last Sunday.（一般过去） 上周日去过，只陈述上周行为 2.I have visited the English corner.（现在完成） 去过英语角，拥有这段经历，重点讲现在 错句：I have met him yesterday. 辨析 2 三组地点短语核心区分 1.have been to + 地点：去过，现已返回，常配 ever/never 2.have gone to + 地点：去了，人未回来，多用于第三人称 3. have been in + 地点 + 时长：停留某地多久，搭配 for/since 例句 1.She has been to Shanghai three times.（已回来） 2.Tom has gone to the library.（人还在图书馆） 3.They have been in this city for 8 years.（停留八年） 问答：Where is your brother? 只能用 has gone to 回答 辨析 3 used to do 固定搭配 含义：过去常常做某事，现在不再如此 1.否定：didn’t use to do /used not to do 2.疑问句：Did + 主语 + use to do…? 例句：I used to hate reciting words, but I love it now. 易错点总结 1.yet/already/ever/never → 优先现在完成时 2.for/since 出现，动词更换为延续性动词 3.yesterday/last/…ago → 只用一般过去时 4.How long 提问时长，不能用瞬间动词 5.最高级 that 从句，从句用现在完成时 专项练习一 动词适当形式填空 要求：选用一般过去时 / 现在完成时 /used to 变形 1.He ________________(finish) his English test just now. 2.We ________________ (learn) grammar for two months. 3. _________ you ________________ (read) this textbook before? 4.My sister ________________ not ____________ (return) the novel yet. 5.They ________________ (visit) the English museum last summer. finished have learned Have read hasn’t returned yet visited 6.She ________________ (live) here since she was 11. 7.I ________________(use) to be weak in listening. 8.Great changes ________________ (happen) in our school so far. 9.The teacher ________________(give) us a speech last Monday. 10.We ______________never ______________ (speak) with foreigners. has lived used have happened gave have spoken 11.Jack ________________(own) this notebook for half a year. 12.My mother ________________(watch) English news yesterday night. 13.How long ________________you _______________(hold) this magazine? 14.His parents ________________(not) _______________(be) to Guangzhou before. 15.I ________________(meet) my English teacher three days ago. has owned watched have held haven’t been met 专项练习二 单项选择 1.— ______ you ______your homework? —Yes, I finished it an hour ago. A. Have; finish B. Did; finish C. Do; finish 2.My grandma______English since 2022. A. learns B. learned C. has learned 3.—Where is Mike? —He ______to the bookstore to buy books. A. has been B. has gone C. went 4.My grandpa ______drink tea after meals, but now he doesn’t. A. used to B. is used to C. was used to 5.We ______this grammar passage three times. A. read B. have read C. are reading B C B A B 6.She______home ten minutes ago. A. arrives B. arrived C. has arrived 7.Have you finished your homework______? A. already B. just C. yet 8.This is the easiest article that I______. A. learn B. learned C. have learned 9.I______the magazine for two weeks, I can’t lose it. A. have borrowed B. have kept C. borrowed 10.How long have you______in this city? A. arrived B. come C. been B C C B C 专项练习三 句型转换 1.He has studied French for 4 years.（对划线部分提问） 2.They have already cleaned the classroom.（改为否定句） 3.She took part in the English competition last week.（改为现在完成时） 4.They used to practice oral English every morning.（改为一般疑问句） 5.I have been to Wuhan.（变一般疑问句 + 否定回答） How long has he studied French? They haven’t cleaned the classroom yet. She has taken part in the English competition. Did they use to practice oral English every morning? —Have you been to Wuhan? —No, I haven’t. 专项练习四 单句改错，划出错误单词，写出正确形式 1.I have borrowed this storybook for two weeks. 2.He moved here three days before. 3.Did you ever visit an English summer camp? 4.She has gone to Xi’an twice, she likes the city very much. borrowed → kept；瞬间动词不能搭配 two weeks before → ago；three days ago 固定搭配 Did → Have；visit → been；ever 用现在完成时 gone to → been to；twice 代表已经返回 课堂综合小结 1.现在完成时核心：过去动作，关联现在 2.四大句式牢记 have/has 搭配规则 3.for/since 搭配必须替换延续动词 4.区分三组易混语法，避开时间状语陷阱 5.熟记标志词，快速判断时态 解题答题步骤 1.圈画时间标志词，初步判定时态 2.观察是否存在 for/since，检查动词延续性 3.有明确过去时间，直接使用一般过去时 4.最高级 that 从句，统一使用现在完成时 5.地点短语看人物是否在现场，区分 been to/gone to 教学课件 Unit1 语法专项 —— 现在完成时 Thank you for listening! 31 $