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【人教版】新目标八年级下册ppt课件:Unit 10 I've had this bike for three years Section A-3

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1. How long have you had that bike over there? I’ve had it for three years. 2. How long has his son owned the train and railway set? He’s owned it since his fourth birthday. 3. Have you ever played football? Yes, I did when I was little, but I haven’t played for a while now. 表示从过去已经开始持续到现在的动作 或状态,可以和表示“从过去某一时刻 延续到现在的一段时间状语”连用,如 “for+段时间”、“since+过去点时 间”、“since+过去时的从句”、 “since+一段时间+ago”。且for与since 引导的时间状语可以相互转换。 e.g. My uncle has worked at this factory for ten years. = My uncle has worked at this factory since ten year ago. I’ve lived here since 1990. I haven’t seen him for three years. She’s been at this school since five years ago. 含有for,since的现在完成时的用法歌诀: 过去的动作或状态,一直持续到现在, for、since 把时间带。 此种用法中表示持续性的动作或状态的 动词必须是延续性动词(否定句除外)。 1. 这本书我买了5年了。 I have bought the book for five years. (× ) I’ve had the book for five years. (√ ) 2. 你哥哥参军多长时间了? How long has your brother joined the army? (×) How long has your brother been in the army/been a soldier? (√ ) 1. 转换为相应的延续性动词,用于现在完 成时。 borrow — keep buy — have put on — wear catch a cold — have a cold get to know — know get to sleep — sleep 2. 转化为“be + 形容词/副词/介词/名词” begin / start — be on go out — be out close — be closed open — be open get to/arrive/reach — be (in) die — be dead leave — be away finish — be over fall sleep — be asleep join — be in/be a member of become — be make friends — be friends come/go/ — be+相应的介词短语 4a Rewrite the sentences using for or since. 1. Jim is in Japan. He arrived there three days ago. Jim has been in Japan for three years. 2. They are very hungry. Their last meal was ten hours ago. They have been hungry for ten hours/since ten hours ago. 3. I have a camera. I bought it in 2009. I have had a camera since 2009. 4. I know Anna. I first met her three years ago. I have known Ann for three years/ since three years ago. 5. Linda is ill. She became ill on Monday. Linda has been ill since Monday. Fill in the blanks with the correct 4b forms of the verbs in brackets. 1. I _______________ have never been (never be) to the water park before. I want to _____ go (go) next month before the weather gets too cold. 2. They _________________ have never owned (never own) any pets, but they ___________ always want (always want) to have a dog. 3. We _________ have had (have) a piano since last November. We _______ bought (buy) it from the Li family when they moved to the US last year. haven’t been (not be) 4. Cathy and Amy ____________ back to their hometown for two years. They ______ m



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