Unit7 语法专项——现在完成时高频用法 课件2025-2026学年沪外教英语七年级下册

教学课件 沪外教英语七年级下册 Unit7 语法专项——现在完成时高频用法 ever, have been, have gone 全解精讲+分层练习 1 学习目标 1. 掌握现在完成时的基本结构（have/has + 过去分词） 2. 理解ever（曾经）的用法及问答句式 3. 精准区分have been to与have gone to的核心区别 4. 掌握现在完成时常见时间标志词及用法 现在完成时基础 基本结构：主语 + have/has + 动词过去分词 核心含义：动作发生在过去，对现在有影响/关联 人称变化：I/we/you/复数 → have；he/she/it/单数 → has 例句：I have finished my homework.（对现在影响：不用再做） 关键：不强调具体过去时间，侧重“过去-现在”关联 核心语法总览 本节课三大核心知识点，均围绕现在完成时展开 1. ever：副词，表“曾经”，用于询问人生经历 2. have been to：去过某地，现在已回到说话人身边 3. have gone to：去了某地，现在仍在那里，未回来 三者均用于现在完成时，贴合成长经历、人物去向场景 ever（曾经）详解（1）— 含义与位置 核心含义：表示“在某人生命中的任何时候”，表经历 用法：仅用于现在完成时的疑问句中 位置：助动词have/has 和 主要动词（过去分词）之间 固定句式：Have/Has + 主语 + ever + 过去分词 + 其他？ 易错提醒：不能用于肯定句、否定句（否定用never） ever（曾经）详解（2）— 例句与问答 例句（成长/经历场景）： 1. Have you ever learned to play the piano?（你曾经学过钢琴吗？） 2. Has he ever been to his hometown alone?（他曾经独自回过家乡吗？） 问答： 肯定：Yes, I/he/she have/has. 否定：No, I/he/she haven’t/hasn’t. 例句：—Have you ever joined a club? —Yes, I have. ever 的拓展——否定对应never ever 的否定形式：never（从未），用于现在完成时肯定句 结构：主语 + have/has + never + 过去分词 + 其他 例句：I have never been abroad.（我从未出过国。） 同义转换：I haven’t ever been abroad.（语气更委婉） 拓展：never 表完全否定，强调“从没有过” 例句：She has never tried a new hobby.（她从未尝试过新爱好。） have been to 详解（1）— 含义与特征 核心含义：去过某地，现在已经回到说话人身边 关键特征：强调“经历”，人不在目的地，已返回 结构：主语 + have/has + been to + 地点 可与表示次数的词连用（once, twice, three times） 例句：I have been to Beijing twice.（我去过北京两次，现在不在北京。） 提示：地点为here/there/home时，省略to（have been here） have been to 详解（2）— 例句（成长场景） 结合“自我身份与成长经历”，强化场景运用 1. My parents have been to my school to attend the meeting.（已回来） 2. She has been to many cities to experience different cultures.（已回来） 3. We have been to the library to borrow books about growth.（已回来） 4. He has been to the art show twice this year.（已回来） have gone to 详解（1）— 含义与特征 核心含义：去了某地，现在还在目的地或途中，未回来 关键特征：强调“去向”，人不在说话人身边，尚未返回 结构：主语 + have/has + gone to + 地点 不可与次数连用，常搭配“will be back”表未返回 例句：My sister has gone to the library. She will be back soon.（未回来） 提示：同样，地点为here/there/home时，省略to have gone to 详解（2）— 例句（去向场景） 1. Tom has gone to the gym to do exercise. He won’t be back until 5 pm.（未回来） 2. Our teacher has gone to the office to prepare lessons.（未回来） 3. Her brother has gone to America to study. He will come back next year.（未回来） 4. My friend has gone to the bookstore to buy books.（未回来） 核心易错点——have been to vs have gone to（表格对比） 结构 人在哪里？ 核心侧重 关键词/标志 have been to 已回到说话人身边 经历、去过（已回） once, twice, 现在在现场 have gone to 在目的地/途中（未回） 去向、去了（未回） will be back, 不在现场 对比例句强化（易混点突破） 通过对比，快速区分两种结构的用法 1. Lucy has been to Shanghai.（露西去过上海，现在在这儿） 2. Lucy has gone to Shanghai.（露西去上海了，现在不在这儿） 3. They have been to the park.（他们去过公园，现在已回来） 4. They have gone to the park.（他们去公园了，现在还没回来） 记忆口诀：been去了已回来，gone去了没回来 现在完成时时间标志词（1） 本节课重点标志词，贴合语法用法 1. ever：曾经（用于疑问句，询问经历） 2. never：从未（用于肯定句，表完全否定） 3. already：已经（用于肯定句，常放have/has后） 例句：I have already finished my reading task. 4. yet：还、尚未（用于否定句/疑问句，放句末） 现在完成时时间标志词（2） 1. just：刚刚（表最近完成，放have/has后） 例句：She has just come back from her hometown. 2. since：自从……（表动作持续，后接过去时间点） 例句：I have lived here since I was a child. 3. for：持续多久（表动作持续，后接时间段） 例句：He has learned English for three years. 标志词易错提醒 1. ever/never/already/yet 仅用于现在完成时 错误：Did you ever go to Beijing? 正确：Have you ever been to Beijing? 2. since/for 用于现在完成时，表动作持续 错误：I am here since 2020. 正确：I have been here since 2020. 3. 具体过去时间（last year, yesterday）不与现在完成时连用 习题1 — 选词填空 从 have been/have gone/ever 中选择，注意人称和形式变化 1. —Where is Tom? —He ____________ to the playground to play basketball. 2. I ____________ to the art museum twice. It’s very wonderful. 3. ____________ you ____________ been to a foreign country? 4. My mother ____________ to the supermarket. She will bring back snacks. 5. They ____________ never ____________ to a concert before. has gone have been Have ever has gone have been 习题2 — 单句改错（易错强化） 1. Have you ever be to a small village? 2. She has gone to Nanjing three times. 3. I have never ate any local food in my hometown. 4. He has been to the office. He will be back in ten minutes. 5. Has she ever try to learn to dance? be → been has gone → has been，表经历 ate → eaten has been → has gone try → tried 习题3 — 单项选择（1） 1. —Where is Amy? I can’t find her. —She ____________ to the library to read books.（A. has been B. has gone C. went） 2. —____________ you ever ____________ to the Great Wall? —Yes, I went there last year.（A. Have; gone B. Have; been C. Did; go） 3. My father ____________ to Beijing on business. He will come back next week.（A. has been B. has gone C. goes） B B B 4. I ____________ to my primary school twice since I left it. （A. have been B. have gone C. went） 5. —Have you ever ____________ a new hobby? —Yes, I have. I started drawing last month. （A. take up B. took up C. taken up） 6. He ____________ never ____________ to a museum, so he wants to go this weekend.（A. has; been B. has; gone C. have; been） A C A 习题3 — 单项选择（2） 7. —Is your brother at home? —No, he ____________ to the gym. He will be back soon. A. has been B. has gone C. went 8. We ____________ already ____________ to the park. We had a good time there. A. have; gone B. have; been C. did; go B B 习题4 — 句型转换（1） 1. She has been to Shanghai three times.（改为一般疑问句并作否定回答） 2. My brother has gone to the US.（对划线部分提问） 3. Have you ever tried to learn English?（作肯定回答并补充细节） 提示：注意人称、助动词变化，保留核心含义 Has she been to Shanghai three times? — No, she has’t. Where has your brother gone? Yes, I have. I have learned English for two months. 习题4 — 句型转换（2） 增加同义句改写，强化灵活运用能力 4. I have never been to a foreign country.（改为同义句，用ever） 5. They have gone to the bookstore.（改为否定句） 6. He has been to the zoo twice.（对划线部分提问） 提示：否定句直接在have/has后加not，疑问句将have/has提前 I haven’t ever been to a foreign country. They haven’t gone to the bookstore. How many times has he been to the zoo? 习题5 — 完成句子 1. 你曾经去过你的小学母校吗？ ____________ you ever ____________ ____________ your primary school? 2. 我妈妈去超市买东西了，她半小时后回来。 My mother ____________ ____________ to the supermarket. She will be back in half an hour. 3. 我去过很多地方旅行，这让我增长了见识。 I ____________ ____________ to many places for travel. It makes me gain knowledge. Have been to has gone have been 习题6 — 补全对话 A: ____________ you ever ____________ to a different city?（Have; been） B: Yes, I have. I have been to Hangzhou twice. A: Where is your sister now? I want to ask her for help. B: She ____________ ____________ to the library. She will be back soon.A: I have ____________ been to Hangzhou. Can you tell me about it? Have been has gone never 课堂小结（一）— 核心知识点梳理 1. ever：用于现在完成时疑问句，表“曾经”，否定对应never 2. have been to：去过某地（已回），强调经历，可与次数连用 3. have gone to：去了某地（未回），强调去向，不与次数连用 4. 现在完成时结构：have/has + 动词过去分词，人称随主语变化 课堂小结（二）— 易错点回顾 1. 易混点：区分have been to（已回）和have gone to（未回） 2. 动词易错：be→been，go→gone，牢记常用过去分词 3. 标志词易错：ever/never仅用于现在完成时，不与过去时连用 4. 句式易错：疑问句将have/has提前，否定句加not，不用did 课堂小结（三）— 用法场景汇总 1. 询问人生经历、过往经历 → ever + have/has + 过去分词 2. 描述去过某地（已回）、有过某种经历 → have been to 3. 说明人物去向（未回）、暂时不在身边 → have gone to 4. 强调过去动作对现在的影响 → 现在完成时（结合标志词） 教学课件 Unit7 语法专项——现在完成时高频用法 ever, have been, have gone Thank you for listening! 29 $