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初中英语人教新目标 (Go for it) 版八年级下册Section A优秀课件ppt
展开I’ve had this bike for three years初中英语 / 人教版 / 八年级下册Unit 10Period 3Section A (4a-4c)How long has the panda been on the tree?现在完成时Lead-inIt has been on the tree for two hours.现在完成时表延续,与since或for连用Present perfect tense with since and for Grammar FocusGrammar learningHow long have you had that bike over there? I’ve had it for three years.How long has his son owned the train and railway set? He’s owned it since his fourth birthday.Have you ever played football?Yes,I did when I was little, but I haven’t played for a while now. Grammar FocusGrammar learning读一读,感知句子用法Grammar learning现在完成时的结构主动语态:has/ have +过去分词被动语态:has/ have been +过去分词被动语态是由主动语态变来的! Grammar learning现在完成时--- since 和 for 的用法1.现在完成时表示动作或状态从过去某一时刻开始、一直持续到现在,多与“since +点时间”或“for +段时间”连用。for表示“经过(一段时间)”,而since表示“自从(……以来)”。 常见结构如下:for +表示一段时间的状语 一段时间+ agosince + 表示过去的某一时间点 从句2.在对现在完成时的时间状语进行提问时,我们常用how long— How long has Mary been a teacher?— Since two years ago./For two years.He has lived here since 1991. 他从1991年起就住在这里了。He has lived here since he was born. 他从出生起就住在这里。Grammar learning3.英语中有些动词的意义不能延续,表示的是一瞬间就结束的动作,这些动词被称为非延续性动词或短暂性动词,常见的如 come, leave, go, lose, see, begin, start, arrive, become, die, buy, borrow, close, join, reach, fall, get up 等。这类动词可以用于完成时态,但在肯定句中不能与表示动作延续的时间状语 for 或 since 短语连用。正:He has come back. 他已回来。 误:He has come back for three days. 正:He has been back for three days. Grammar learning4.在表示持续一段时间的句子中,应将短暂性动词转化为相同意义的延续性动词或状态动词。Grammar learningGrammar learningRewrite the sentences using for or since.1. 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 Ann. 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.Linda has been ill since Monday.4aGrammar practicegFill in the blanks with the correct forms of the verbs in brackets.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.4bGrammar practicehave never beengohave never ownedalways wantFill in the blanks with the correct forms of the verbs in brackets.3.We_____________(have)a piano since last November.We__________(buy) it from the Li family when they moved to the US last year.4.Cathy and Amy______________(not be)back to their hometown for twoyears.They_______(miss) their hometown a lot and hope to visit the placenext year.5.This museum______________(be)here for over 20 years.It_______(be) one of the oldest buildings in this small town.4bGrammar practicehave hadboughthaven’t beenmisshas beenisFill 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?4cGrammar practicea photo albuma teddy bearfor three yearssince she was 8 years old他参军三年了。他父亲去世两年了。电影已开始十分钟了。我们(开始)学英语已三年了。课堂翻译练习Grammar practiceHe has been a soldier for three years. His father has been dead for two years. The film has been on for ten minutes. We have studied English for three years. 1.Recite the words and expression of this part.2.Review what you learnt today.3.Finish exercises in your textbook.Homework谢谢观看
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