Unit7 语法专项--现在完成时（Present Perfect Tense） 课件2025-2026学年沪外教版英语七年级上册

教学课件 沪外教英语七年级上册 Unit7语法专项—— 现在完成时（Present Perfect Tense） 全解精讲+分层练习 1 学习目标 理解现在完成时：过去动作影响现在 掌握基本结构：have/has + 过去分词 熟记规则/不规则动词过去分词 掌握标志词：already/just/yet 现在完成时 — 含义 表示过去动作，影响现在 动作发生在过去，结果持续到现在 不强调过去时间，强调现在结果 例：I have finished homework.（已做完） 现在完成时 — 结构 肯定：主语 + have/has + 过去分词 否定：主语 + haven’t/hasn’t + 过去分词 疑问：Have/Has + 主语 + 过去分词？ 主语I/you/we/they用have；he/she/it用has 过去分词 — 规则变化1 一般动词：直接加 -ed finish→finished；walk→walked play→played；watch→watched 过去分词 — 规则变化2 不发音e结尾：加 -d live→lived；hope→hoped decide→decided；like→liked 过去分词 — 规则变化3 辅+y结尾：变y→i，加 -ed study→studied；carry→carried worry→worried；try→tried 过去分词 — 规则变化4 重读闭音节：双写尾辅加-ed stop→stopped；plan→planned skip→skipped；drop→dropped 过去分词 — 高频不规则 be→been；do→done；have→had go→gone；see→seen；make→made get→got；write→written；cut→cut 标志词 — already already：已经，用于肯定句 位置：have/has后，实义动词前 例：I have already eaten breakfast. 标志词 — just just：刚刚，用于肯定句 位置：have/has后，实义动词前 例：He has just arrived home. 标志词 — yet yet：还、仍，用于否定/疑问句 否定句末；疑问句末 例：I haven’t finished yet. 例：Have you done it yet? 标志词小结 already：肯定句（已经） just：肯定句（刚刚） yet：否定/疑问句（还） 口诀：肯already/just，疑否yet 练习1 — already/just/yet填空 1.I have ____________ cleaned my room. 2.She hasn’t called me ____________. 3.They have ____________ arrived at the station. 4.Have you finished your work ____________? 5.We have ____________ seen this film before. already yet just yet already 练习2 — 规则动词填空 1.He has ___________ (finish) his report. 2.They have ___________ (walk) for an hour. 3.She has ___________ (study) English hard. 4.We have ___________ (plan) a trip. 5.I have ___________ (like) this song for years. finished walked studied planned liked 练习3 — 不规则动词填空 1.I have __________ (be) to Beijing twice. 2.She has __________ (go) to the library. 3.They have __________ (see) the new movie. 4.He has _________ (make) a big mistake. 5.We have __________ (do) our homework. been gone seen made done 练习4 — 句型填空（have/has） 1.She __________ finished her homework. 2.They __________ visited the museum. 3.I __________ never been to Japan. 4.He __________ just eaten lunch. 5.We __________ already cleaned the classroom. has have have has have 练习5 — 单项选择 1.I ______ my homework already. A. finish B. finished C. have finished D. will finish 2.______ you ever ______ to Shanghai? A. Have; been B. Did; go C. Do; go D. Will; go 3.He ______ here for three years. A. live B. lived C. has lived D. will live 4.They haven’t finished the work ______. A. already B. just C. yet D. ever C A C C 练习6 — 句型转换 1.I have read this book.（否定） 2.She has already left.（否定） 3.They have visited the park.（一般疑问） 4.He has finished his homework.（一般疑问+否定回答） 5.I have never been to Paris.（同义句） 6.She left just now.（用just改写） I haven’t read this book. She hasn’t left yet. Have they visited the park? Has he finished his homework? — No, he hasn’t. I haven’t been to Paris. She has just left. 练习7 — 改错 1.He have finished his work. 2.I have just ate dinner. 3.Have you see the film yet? 4.She hasn’t arrive yet. have→has ate→eaten see→seen arrive→arrived 易错点1 — 结构 have/has + 过去分词，不是原形 主语三单用has，其余用have ❌ He has finish. ✅ He has finished. 易错点2 — 标志词 already/just：肯定句 yet：否定/疑问句 否定句不用already，疑问句不用already 易错点3 — 与一般过去时区别 现在完成时：影响现在，无过去时间 一般过去时：过去动作，有过去时间 ✅ I have eaten.（现在饱） ✅ I ate yesterday.（过去吃了） 知识梳理（一） 含义：过去动作，影响现在 结构：have/has + 过去分词 标志词：already/just（肯）、yet（疑否） 知识梳理（二） 动词：规则ed；不规则特殊记 句型：肯定、否定、疑问 关键：区分现在完成时与一般过去时 教学课件 Unit7语法专项—— 现在完成时（Present Perfect Tense） Thank you for listening! 26 $