安徽省2024-2025学年人教版英语八年级下册语法清单现在完成时

现在完成时 一、定义 1. 已完成用法：过去动作对现在造成影响 ▶ 例：She has cleaned the room.（结果：现在房间干净） 2. 持续性用法：动作从过去持续至今 ▶ 例：It has rained for 3 hours.（雨持续到现在） 二、基本结构 | 句式 | 结构 | 例句 | |------------------|-----------------------------------------------|----------------------------| | 肯定句 | 主语 + have/has + 过去分词 | I have finished work | | 否定句 | 主语 + haven't/hasn't + 过去分词 | He hasn't eaten | | 一般疑问句 | Have/Has + 主语 + 过去分词？ | Have you seen it? | | 特殊疑问句 | 疑问词 + have/has + 主语 + 过去分词？ | Where has she gone? | >> 注意：第三人称单数用 has（he/she/it） 三、核心用法 | 用法类型 | 时间状语 | 例句 | |------------|--------------------------|------------------------------------------------------------------- | 影响性用法 | just/already/yet/ever | She has just left. (刚离开) | | | never/before | Have you ever been to Beijing? | 持续性用法 | for + 时间段 (for 2 years) |They have lived here for 10 years | | since + 时间点 (since 2020) | I have known her since 2018 | | | so far/recently | We have learned 5 units so far| >> 重点： >> ① yet 用于疑问/否定句句末：Have you done it yet? >> ② already 用于肯定句：He has already arrived. 四、动词规则 1. 延续性动词（直接接时间段）： ▶ live/work/study → He has worked here since 2020. 2. 非延续性动词（需转换）： ▶ join → be a member: She has been a club member for 1 year. (√) ▶ buy → have: I have had this bike for 3 months. (√) ▶ die → be dead: His dog has been dead for a week. (√) ▶ come → be here: They have been here since Monday. (√) 3. 易混短语： ▶ have been to：去过某地（已返回） → Lucy has been to London twice. ▶ have gone to：去了某地（未返回） → "Where is Tom?" "He has gone to the library." ▶ have been in：持续在某地 → We have been in Suzhou for 5 years. 五、与一般过去时对比 | 时态 | 时间状语 | 例句对比 | |--------------|------------------|-------------------------------| | 现在完成时 | for/since/ever | Have you read this book? (关心现在是否知道内容) | | 一般过去时 | yesterday/ago | I read it last week. (仅说明过去动作) | 六、过去分词变化 1. 规则变化： ▶ 一般+ed: ask → asked ▶ e结尾+d: like → liked ▶ 辅音+y→ied: study → studied ▶ 重读闭音节双写+ed: stop → stopped 2. 高频不规则动词： ▶ go → gone ▶ see → seen ▶ do → done ▶ take → taken ▶ eat → eaten ## 七、四大必考重点 1. for/since 的时间表达 2. 非延续动词转换（join/buy/die） 3. have been to 和 have gone to 辨析 4. just/yet/already 在句中的位置 1. —Have you finished your homework ______? —Yes, I've ______ finished it. A. yet; already B. already; yet C. ever; never D. never; ever 2. Mr. Li ______ in Nanjing since he was born. A. lived B. has lived C. lives D. will live 3. —Where is your sister? —She ______ Shanghai for a meeting. A. has gone to B. has been to C. has been in D. went to 4. My grandparents ______ for over 40 years. A. have married B. have been married C. married D. were married 5. —______ you ever ______ the Great Wall? —Yes, twice. A. Have; visited B. Did; visit C. Do; visit D. Are; visiting 6. The old man ______ for ten years. We all miss him. A. has died B. died C. has been dead D. was dead 7. —______ have you studied English? —Since I was 8 years old. A. How often B. How long C. How soon D. How many 8. My brother ______ the army for three years. A. has joined B. joined C. has been in D. joins 9. —Have you seen the new movie? —Yes. I ______ it last Saturday. A. see B. have seen C. saw D. was seeing 10. She ______ here for two hours, but nobody ______ her. A. has come; saw B. has been; has seen C. came; has seen D. comes; sees 学科网（北京）股份有限公司 $$