Unit 1 课时3 Grammar课件 -2025-2026学年译林版英语八年级下册

英 语 （译林版新教材） 8B Unit 1 Past and present 八年级下册 8B Unit 1 Grammar Grammar Objectives 01 sum up the rules of the present perfect tense. 02 finish the exercises using the present perfect. At the end of this lesson, you will be able to Read the conversation below and answer the questions. I've just found out many things about Shenzhen from my uncle. He's lived there since he finished college. Really? What did he tell you? He said there are a lot more jobs now in Shenzhen, and the living conditions are much better. That's nice. Did he tell you anything else? Yes.Transport has also improved a lot. People can get around the city easily. Wow. I hope one day I can visit Shenzhen. Have you been to Shenzhen before? I’ve only been there once, but I’m planning to go there again this summer. You can join me! Great idea! Millie: Sandy: Millie: Sandy: Millie: Sandy: Millie: Sandy: What changes has taken place in Shenzhen? Which tense is used in the underlined sentences? present perfect tense (现在完成时) 你知道动词过去分词的变化规则吗？ We form the present perfect with ____________________ _________ of the main verb. have / has + the past participle Grammar Base form 动词原形 Simple Past 过去式 变化规则 look look look move move move carry carr carr stop stop stop 一般动词，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 大多数动词的过去分词的变化 ed ed d d Past Participle 过去分词 ed ed p p ed y i ed y i Grammar 变化 动词原形 过去式 过去分词 hit hit hit learn hear learnt heard learnt heard get got got make made made feel felt felt 在原形后加t或d 原形中的辅音字母有变化 原形中的元音、辅音字母都有变化 原形中的元音字母有变化 不规则动词的过去分词的变化 与原形相同 1. 动词的过去式与过去分词的变化形式相同 Grammar 变化 动词原形 过去式 过去分词 come came come sing sang sung eat ate eaten give gave given steal stole stolen do go did went done gone 在原形后加en 在过去式上加n 原形、过去式和过去分词的词形差异较大 原形中的元音字母有变化 与原形相同 2. 动词的过去式与过去分词的变化形式不同 在原形后加n ➷➷ ➷ ➷ ➷ ➷ ➷ ➷ ➷ ➷ Click on the irregular(不规则) verbs. Unit 1 Past and present Grammar Millie’s uncle has lived in Shenzhen since he finished college. 1. We use the present perfect tense to talk about an action that started in the past and continues to the present. 我们用现在完成时表示从过去持续到现在的动作或状态。 现在完成时的用法 he finished college present lives in Shenzhen 现在完成时常与since, for引导的时间状语连用。 When do we use the present perfect tense? Grammar ••••••••••••••• Millie has found out many things about Shenzhen from her uncle. She found out many things about Shenzhen. 2. We use the present perfect tense to talk about an action that happened in the past and has a connection with the present. 我们用现在完成时表示在以前某个时间已经发生的行为或曾经做过的事情对目前有某种影响。 present She knows many things about Shenzhen. past Grammar past Millie has never visited Shenzhen. never visited Shenzhen 3. We also use the present perfect tense to talk about how many times an action has happened up to the present. 我们用现在完成时表示某个动作从过去到现在发生的次数。 present 现在完成时常与already, yet, ever, never, just, recently等副词连用。 Grammar (1) I have finished my work. (2) He has changed a lot in the past few years.  (1) I have not finished my work. (2) It's Rachel's birthday tomorrow and her mother has not bought her a present. 主语 + have/has + 过去分词 + 其他. 1. 肯定句式 主语 + haven't / hasn't + 过去分词 + 其他. 2. 否定句式 现在完成时的句型 I / You / We / They have = I’ve / You’ve / We’ve / They’ve He / She / It has = He’s / She’s / It’s have not = haven’t has not = hasn’t Grammar 疑问词 + have/has + 主语 + 过去分词 + 其他? Have / Has + 主语 + 过去分词 + 其他? - Have you heard from your family lately /recently?  - Yes, I have./ No, I haven't. 3. 一般疑问句 肯定答语: Yes, 主语 + have/has. 否定答语: No, 主语 + haven't/hasn't. Where have you been during your summer holiday? 4. 特殊疑问句 Grammar Millie is making notes about the changes in Sunshine Town. Complete her notes with the correct forms of the verbs in brackets. A P13 A ● Sunshine Town (1) ______________ (change) a lot over the years. ● The government (2)__________ just _________ (turn) part of the town centre into a new park. ● Recently, the air in our town (3)_____________ (improve) a lot. ● Some people in the countryside (4) __________ already ___________ (move) to new buildings. ● Last year, the government (5) __________ (build) an art museum. I (6)_______________ (not visit) the museum yet. has changed has turned has improved have moved built haven't visited Grammar Millie is writing about her family life. Complete her sentences with the correct forms of the verbs in the box. B P14 B buy visit find leave go return work ● My dad (1)_________ a job as an engineer in a company after he finished college. He (2)___________ at the company for over 17 years up to now. ● My mum (3) ________ her hometown at the age of 18, but she often returns to visit my grandparents. Last week she (4)__________ back to see them and (5)_______ not _________ yet. ● My family (6) _________ a car last year. Since then, we (7) ______________ many beautiful places in this car. found has worked left went has returned bought have visited Grammar Millie is watching an interview. A reporter is interviewing a foreigner who has lived in Shenzhen for many years. Read the interview script and fill in the blanks with the correct forms of the verbs in brackets. C P14 C Reporter: Andrew: Reporter: Hello Andrew. You (1) _________ (live) in Shenzhen for ten years. Do you like living here? Yes, very much. I (2)_________ (be) to many cities around the world, but Shenzhen is my favourite. You could say I (3)____________ (fall) in love with Shenzhen-it feels like home. In fact, there (4)___________ (be) lots of changes in the past few years. (5)_______ you ________ (notice) any of these while you've been here? have lived have been have fallen have been Have noticed Grammar Unit 1 Past and present Andrew: Reporter: Well, transport has changed a lot. There (6)__________ (be) more underground lines now. I take the underground most days. It's very easy to get around the city. Yes, it is. Thank you for speaking to me. I (7)_____________ (enjoy) hearing your thoughts about our city. are enjoy Talk with your partner about the changes in your hometown, using the presentperfect tense. D P14 D Grammar Unit 1 Past and present Grammar 按要求改写下列句子。 1. We have learned French since last September. (对画线部分提问) 　______ ______ _________ you learned French? 2. She’s visited the Hong Kong-Zhuhai-Macao Bridge once. (对画线部分提问) 　______ ______ ______ _______ she visited the Hong Kong-Zhuhai-Macao Bridge? 3. I have already read John’s new book. (改为一般疑问句) 　_______ _______ ______ John’s new book ______? How long have How many times has Have you read yet ➷➷ ➷ ➷ ➷ ➷ ➷ ➷ ➷ ➷ Self-evaluation Unit 1 Past and present Can you work out the rules of the present perfect tense? Do you know when to use it? Can you use the present perfect tense to finish the exercises? Grammar 1. Write about the changes in your hometown using the present perfect tense. 2. Preview Integration on pages 15-18. Bye-Bye！ 学习学康鹤彪 $