Unit3 Online tours Grammar 课件 -2024-2025学年牛津译林版八年级英语下册

Unit3 Online tours Grammar Simple past tense Present perfect tense 一般过去时 现在完成时 vs. Self-study instructions: 1. Discuss: (a)The differences between the two tenses. (b)The structures of the two tenses.You'd better give us some examples. 3mins NO.5-6 student gives an example to NO.1/2student. If you've finished,show me green. 知者加速：Try to finish the extra workbook. 一般过去时和现在完成时的区别(一) past present Daniel went to Beijing two years ago. Daniel has lived in Beijing for two years. past present We use the simple past tense to tell what happened in the past. We use the present perfect tense to talk about an action that started in the past and continues to the present. 我们用一般过去时讲述过去发生的事情。 我们用现在完成时讲述一个动作发生在过去并且持续到现在的动作。 1. 三年前他参加了英语课程。 He ________ English course three years ago. 2. 他已经参加英语课程3年了。 He _________ English course for three years. has taken took Have a try Self-study instructions: 2. Discuss and Write: Please make up 2 sentences with the two tenses and write them on your blackboard. ---side A Please write down some time expressions of the two tenses on your blackboard. 4mins ---side B If you've finished,please sit down. 知者加速：Try to finish the extra work. Daniel bought a new computer last month. Daniel has bought a new computer. (He has a new computer now.) past present past present We use the simple past tense to tell what happened in the past. We use the present perfect tense to talk about the result of an action. When the action happened is not very important. It may have just happened or happened some time ago. 我们用一般过去时讲述过去发生的事情。 我们用现在完成时谈论或强调一个动作的结果，而动作发生的时间可能并不重要。 一般过去时和现在完成时的区别(二) Self-study instructions: 1. Practice more: Try to finish Part C&Part D on Page 42. 4mins If you've finished,show me green. 知者加速：Try to finish the extra workbook. Check the answers in groups. Read PartC&Part D. If you need help, show me red. Question-solved time If you have any problems, Let's discuss. 一般过去时和现在完成时的区别（I） Tense（时态） Concept（概念） the simple past tense（一般过去时） the present perfect tense（现在完成时） 表示过去某时发生的动作，和现在　　　　（有、没有）关系。 表示过去发生的某一动作,强调和现在　　　　（有、没有）关系。 没有 有 区 别： 结 构 特殊疑问句 When did Daniel go to Beijing？ When has Daniel lived in Beijing？ 助动词不同 动词形式不同 区 别： 时间标志词 Daniel went to Beijing two years ago. Daniel has lived in Beijing for two years. Daniel bought a new computer last month. Daniel has bought a new computer. Mr Wu visited Canada in 2010 and 2011. Mr Wu has been to Canada twice. 一般过去时 ...ago, last ..., in + 过去的年份/月份/星期 现在完成时 （句中）just,never,ever,already, for/since + 时间 （句末） yet, in the past, over the years, recently, once 一般过去时和现在完成时的区别（II） Tense（时态） Structure （结构） the simple past tense（一般过去时） the present perfect tense （现在完成时） 主语+V过去式+其他 主语+have/has +V过去分词+其他 Complete his sentences with the correct forms of the words in brackets. I ___________ (visit) the Palace Museum with my grandparents the other day. I ___________ (climb) Mount Huang last Summer. have visited climbed Complete his sentences with the correct forms of the words in brackets. ________ you ever _________ (try) the famous Tianjin Baozi? I am happy that I _________(learn) to swim. Have tried have learnt Work in pairs. Use the dialogue as a model to talk about the cities or places of interest you’ve visited before. Pay attention to the tenses. Shanghai Disneyland Yangzhou Suzhou The Palace Museum Mount Huang （黄山） Binhai Park Moon Bay(月亮湾) Nanjing …… A: Have you ever been to…. B: Yes, I have…. A: When did you go there? B: … I spent … there. A: Did you like it? B: Oh, yes. I had a good time there. I… What about you? Where.... A: Lucky you! I have never been there before. I have been to.... B: That sounds great. .... Tips: some day 和 the other day 的区别： some day指将来“总有一天、有朝一日、终将、(日后)某一天”，谓语动词用一般将来时。如: Your wishes will come true some day. 总有一天你的愿望会实现的。 Some day you’ll have to pay for what you have done. 总有一天你要为你的行为而付出代价的。 1) 一般过去时表示过去某时发生的动作或单纯叙述过去的事情，强调动作；现在完成时为过去发生的，强调过去的事情对现在的影响，强调的是影响。 SummarySummary Practice 1.My father returned from the bookshop just now. My father ______ just ________ ______ the bookshop. 2.He began to learn Chinese in 2001. He _____ _______ Chinese since 2001. 3.He has had the motorbike for two years. He ________ the motorbike two years ______. It’s two years ______he ________ the motorbike. Two years ______ ______ since he ______ the motor bike. has returned from has learned since bought bought ago has passed bought Homework 1.Review the differences between the simple past tense and the present perfect tense 2.Try to write a diary to describe the places of interest you have visited. $$