人教版2025八年级下册英语 Unit 10语法课 课件

这是一份人教版2025八年级下册英语 Unit 10语法课 课件，共25页。
I’ve had this bike for three years.Section A Grammar Focus-4cPay attention to sentences using present perfect tense.What tense are they use?——The present perfect tense. have/has + 动词的过去分词Grammar FocusGrammar FocusWhat does“how long”ask?What tense are they use?The present perfect tense. How to answer? I’ve had it for three years. I’ve learned English for two years.TimeHe’s owned it since his fourth birthday.What are they?Grammar FocusThey are the past continuous of verbs.（动词过去进行式）Grammar Focus I’ve had it for three years. He’s owned it since his fourth birthday. I’ve learned English for two years.What can you find?He has learned about 5000 English words since he went to college.for+时间段for+时间段since+过去的时间点since+过去时的从句since+过去时的从句/过去时间点for+时间段Can you summarize the rule?How to answer?I haven’t played for a while now.for+时间段一、用since和for填空1.______two years 2.______two years ago3.______last month 4.______19995.______yesterday 6.______4 o'clock7.______4 hours 8.______an hour agoExerciseforsincesincesincesincesincesinceforbegin, start, open, close, leave, die, go, come, finish, buy, stop...study, work, keep, have, read, sleep...延续性动词VS非延续性动词I borrowed a book yesterday.I can keep the book for ten days.非延续性动词：延续性动词：和时间点连用yesterdaytwo years agoat 5 o’clock...和时间段连用for+一段时间since+过去的时间since+时间点名词+ago...延续性动词VS非延续性动词在现在完成时的句子中，若含有for或since引导的时间状语，则句中谓语一定要用延续性动词。非延续性动词转换为延续性动词 ①将非延续性动词转化为“be+形容词或副词”begin (start) （开始）go there （去哪里）come back （回来）come here （来这里）be onbe therebe backbe here小组探究非延续性动词转换为延续性动词openbe openbe closedbe deadbe overbe in be awayfinish go to bed leave marrybe backbe out be asleepbe lostbe ill be in / atbe in / be a member ofget out be married延续性动词VS非延续性动词closediereturn fall asleep join (become) lose get (arrive,readch) fall ill ②有的非延续性动词可以转化为意思相同的延续性动词：borrow（借） become（成为） receive （收到） go to sleep（睡觉） put on（穿）get to know（认识） buy（买） catch a cold（感冒） wear / be onknowhave (own) have a cold 延续性动词VS非延续性动词keep be havesleep1. Jim is in Japan. He arrived there three days ago.2. They are very hungry. Their last meal was ten hours ago.3. I have a camera. I bought it in 2009.4. I know Anna. I first met her three years ago.5. Linda is ill. She became ill on Monday.Jim has been in Japan for three days.They have not eaten for ten hours.I have had a camera since 2009.I have known Anna for three years/since three years ago.Linda has been ill since Monday.4a. Rewrite the sentences using for or since. 1. I _______________ (never be) to the water park before. I want to _____ (go) next month before the weather gets too cold.2. They __________________ (never own) any pets, but they ________________ (always want) to have a dog.3. We _________ (have) a piano since last November. We _______ (buy) it from the Li family when they moved to the US last year.have never beengohave never ownedhave always wantedhave hadbought4b. Fill in the blanks with the correct forms of the verbs in brackets.4. Cathy and Amy ____________ (not be) back to their hometown for two years. They ______ (miss) their hometown a lot and hope to visit the place next year.5. This museum _________ (be) here for over 20 years. It _____ (be) one of the oldest buildings in this small town.　　haven’t beenmisshas beenis客观事实4b. Fill in the blanks with the correct forms of the verbs in brackets.4c. Fill in the questions and ask two students. Then complete the chart. 1. Do you have a(n) ______________? How long have you had it?2. Do you own a(n) _______________? How long have you owned it?（广西梧州中考）Millie _______ in this factory since 1990.works B. worked C. has worked D. have workedMy cousin _______ 100 model planes since 2015.collects B. collecting C. has collected D. have collected（湖南湘潭中考）小试牛刀（湖北黄冈中考）—Your new watch is so nice! When did you buy it?—In April. I _______ it for two months.have had B. had C. have bought D. bought（上海中考）The film Operation Red Sea _______ a lot of praise since its first show months ago.wins B. win C. will win D. has won（湖北武汉中考）—Do you still play basketball?—Oh, no. I _______ it for the past two years.haven’t played B. didn’t play C. won’t play D. hadn’t played5.Margaret in her office.She has been there _____ 7 o'clock.6.India has been an indendent country_____1974.1.I've known him _____ we were children.2.Our teacher has studied Japanese______three years.3.She has been away from the city_______about ten years.4.It's about ten years_____she left the city.用since/for填空过去时的从句时间段时间段过去时的从句过去时间点过去时间点sinceforsincesincesincefor小试牛刀Homework123基础型作业：完成练习/练习册（问题需要老师精选）。实践型作业：规范整理相关知识点到笔记本，课余同学之间互相抽查。拓展型作业：自己举例对比for,since引导的时间状语从句。