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的含义、句型结构及already/yet/since/for等副词的使用，通过Free talk（询问旅行经历）和Think and predict（预测Eric北京活动）激活学生经验，结合时间轴对比过去时与现在完成时，重组句子练习结构，构建从语境感知到语法归纳再到应用的学习支架。 其亮点是以真实语境（Eric的邮件阅读）和任务链（找句、重组、写作）培养语言能力，融入交换旅行主题渗透跨文化意识。通过表格归纳语法结构、小组问答活动，提升思维品质与合作学习能力。学生在应用中掌握语法，教师可借助清晰支架高效教学。

英语沪教版八年级上册 Unit5 Going on an exchange trip Lesson 3 Grammar 01 在语境中归纳总结现在完成时的含义和句型结构。 02 准确使用含有already、yet、ever、never等副词和since、for等词的现在完成时表达已经发生的事情。 03 通过小组合作与表达,增强跨文化意识与合作精神。 Learning Objectives 通过本课时的学习,学生能够: 重点 重点 Free talk Have you ever been to another city or country? Yes, I have been to Beijing. / No, I haven’t. /... What did you do there? I visited the Great Wall. / I ate delicious food. / ... Think and predict What do you think Eric has probably done in Beijing? He has probably visited the Palace Museum. He has made new friends. ... Eric has been in Beijing for a week. Read and underline Read Eric’s email and underline the sentences with present perfect tense. Fill and learn Present perfect tense: to talk about actions we did in the recent past but _ (have a result or an effect/have no result or no effect) in the present. past now I have just learnt how to play Go. I learnt how to play Go. I can play Go. have a result or an effect Reorder and fill Reorder sentences with the present perfect tense. Then fill in the blanks. 1. have/ how to play Go/ learnt/ I _. 2. shown/ me/ He/ has/ the medals he won _. 3. Wei/ been to/ the UK/ hasn’t _. I have learnt how to play Go He has shown me the medals he won Wei hasn’t been to the UK. Reorder and fill Reorder sentences with the present perfect tense. Then fill in the blanks. I have learnt how to play Go. He has shown me the medals he won. Wei hasn’t been to the UK. How to form statements Positive I/We/You/They _ learnt/ shown … _ has Negative _ haven’t been … He/She/It _ have He/She/It I/We/You/They hasn’t haven’t = have not hasn’t = has not past participle Reorder and fill Reorder sentences with the present perfect tense. Then fill in the blanks. 4. learnt/ how to play Go/ Eric/ Has _? 5. he/ has/ Yes, _. Has Eric learnt how to play Go Yes, he has How to form questions Have _ learnt(…)? _ he/she/it Short answers Yes, I/we/you/they have. he/she/it _. No, I/we/you/they _. he/she/it hasn’t. Has I/we/you/they has haven’t past participle The past participle of a regular verb is usually the same as its past tense form. You can find the past participles of some irregular verbs on pages 142~143. Read and circle Read the passage and circle already/yet/since and for in these sentences. Then fill in the blanks. Sarah has been in Beijing for a week. She has stayed with her host family since14 October. She has already tried a lot of local food in Beijing, but she hasn’t visited many places of interest. For example, she has not seen the Great Wall yet, and she has not been to the Summer Palace either. She hopes to go there next week. We use ever/ never/ already_(after, before)have/has and _ (after, before) the main verb. We usually use _ (since, for) with a point in time. We use _ (since, for)with a period of time. We often use yet at the end of a question or a _ (positive sentence/ negative sentence) . after before negative sentence since for Do a quiz 用括号中所给单词的适当形式填空 1. —I think our teacher, Mr Wang, knows everything. —I agree. That’s because he _ (read) over 5,000 books. 2. —_ you ever _ (visit) the London Zoo, Anne? —No, I haven’t. 3. So far, Zibo’s tourism (旅游业) _ (develop) quickly and it’s becoming more and more popular. 4. The children _ (not eat) their lunch yet. They are hungry now. has read Have visited has developed haven’t eaten Let’s write 1. I/for/in Britain/stay/two months. 2. She /never/worry about /her looks 3. Eric/yet/don’t return 4. ever/you/visit Britain/? 5. Jessica /already /change her opinion/on her looks Jessica has already changed her opinion on her looks. Write sentences with the present perfect tense. I have stayed in Britain for two months. She has never worried about her looks. Eric hasn’t returned yet. Have you ever visited Britain? Doris and Chris are good friends. They (1) (know) each other (2) a long time. They first met each other in the Tennis Club. Doris is now in London on an exchange trip. She (3) (be) away (4) last Sunday. Chris went on holiday the week before. Therefore, Doris (5) (not see) Chris (6) two weeks. Read and complete have known for has been since has not seen / hasn’t seen for Complete the passage with the correct form of the verbs in brackets and since or for. Ask and Answer Have you ever been to...? How long have you stayed/ been in ...? Have you ever eaten...? ... Think about your travelling experiences. Ask and answer questions with your classmates. Summary The Present Perfect Tense 3 1 To talk about actions we did in the recent past but have a result or an effect in the present. Basic sentence structure: sb. has/have done sth. 2 already, yet, never, ever, since, for. Homework Recite the irregular verbs on P142-143. 1 Preview Writing. 2 Bye Bye $