Unit 5 Going on an exchange trip Grammar 课件 -2025-2026学年沪教版英语八年级上册

该初中英语课件聚焦现在完成时，通过邮件阅读任务导入，从基础用法、句型结构到动词过去分词变化规则，逐步延伸至时间状语（already, yet等）及延续性与非延续性动词转换，构建由浅入深的学习支架。 其亮点在于融合真实邮件情境与互动游戏（如“it'S Raining VERBS!”），结合中考真题链接，培养学生语言运用能力与思维品质。学生能在实践中掌握语法，教师可借助系统练习提升教学效率，助力核心素养发展。

1111 11111111 Unit 5 Going on an exchange trip Grammar A The present perfect tense 现在完成时 *现在完成时的用法。 *现在完成时的句型。 *动词过去分词的变化规则示例。 Read the email L7 X and answer the 10 Mum Subject: My exchange trip in Beijing questions. Dear Mum, 1.Who taught Eric I have been in Beijing for a week now.I'm staying Dh my host family and to play Go? they are friendly.I have just learnt how to play Go.My host brother Wei taught me the rules.He has also shown me the medals he won. 2.What will Eric I have done lots of fun things so far!I have learnt some useful Chinese and his phrases at a local ool with my British classmates.I haven't practised them classmates do yet but I will soon!Our teacher has told us we will do some Chinese painting next week? and tai chi next weekhaventtrieibfore,a excited! By the way,Wei hasn't been to the UK.T'd like to invite him to London during 3.Where does Eric summer holiday.What do you think? want to invite his Love, host brother? Eric Read the email L7 X To: again and pay Mum Subject: My exchange trip in Beijing attention to the underlined words. Dear Mum, I have been in Beijing for a week now.I'm staying with my host family and Present perfect they are friendly.I have just learnt how to play Go.My host brother Wei taught me the rules.He has also shown me the medals he won. tense I have done lots of fun things so far!I have learnt some useful Chinese phrases at a local school with my British classmates.I haven't practised them yet but I will soon!Our teacher has told us we will do some Chinese painting and tai chi next week.I haven't tried tai chi before,so I am excited! By the way,Wei hasn't been to the UK.I'd like to invite him to London during summer holiday.What do you think? We form the present perfect withhave has the past participle of the main verb. 动词过去分词的变化规则示例 Past Participle 过去分词 般动词，加ed 以不发音的e结尾的动词，加d 以“辅音+y结尾的动词，变y为i, 再加ed 以一个辅音字母结尾的重读闭 音节动词，双写词尾辅音字母， 再加ed 但也有一部分动词-ed 忆。比如： A-A-A型 (动词原形、过去式、 过去分词都同形) A-B-B型 (动词过去式、过去 分词同形) A-B-C型 (动词原形、过去式、 过去分词都不同形) GAME 了西EB i s Click on the ReininG irregular(不规则) verbs. veRBs! PLAY HGG Read the email 现在完成时表示动作或状态从过去某一时间开始并一 直持续到现在，而且可能持续到将来。 have been in Beijing for a week now.I'm staying with my host family and Present perfect they are friendly.I have just learnt how to play Go.My host brother Wei taught me the rules.He has also shown me the medals he won. tense I have done lots of fun things so far!I have learnt some useful Chinese phrases at a local school with my British classmates.I haven't practised them yet but I will soon!Our teacher has told us we will do some Chinese painting and tai chi next week.I haven't tried tai chi before,so I am excited! By the way,Wei hasn't been to the UK.I'd like to invite him to London during summer holiday.What do you think? in Beiiing 现在完成时表示在以前某个时问已经发生的行为或曾 经做过的事情对目前有某种影响。 have been to,have gone to have been in B BEIJING He has been to Beijing. 表示某人曾去过某地 (现已回来) She has gone to Beijing. A BEIJING 表示某人在去某地途中 或到了某地，也可能在 回来的路上 (现在还没 有回来) A B BEIJING He has been in Beijing. 表示某人在某地待了一段时间（现在还在那 里)，常和for/since的时间状语搭配 现在完成时的句型 主语+have/has+过去分词+其他. (1)I have finished my work. (2)He haschanged a lot in the past few years. 主语+haven't/hasn't+过去分词+其他. (1)I have not finished my work. (2)It's Rachel's birthday tomorrow and her mother has not bought her a present.