英语人教版八年级下册Unit10 Grammar Focus4a-4c教学课件.pptx

1、Unit 10 Ive had this bike for three years.,大圩中学 林凤香,Section A 3 Grammar focus - 4c,大圩中学 林凤香,Learning taigets,知识与技能：1.熟知现在完成时特殊疑问句的结构； 2.正确区分for和since在现在完成时的用法； 3.能根据延续性动词与非延续性动词进行造句和做题。 过程与方法：通过自学和讨论，发挥学习自主性 和合作性，并通过完成由易到难的不同类型的练习， 突破重难点。 情感态度与价值观：根据句义和关键词降低解题 难度，提升学习英语尤其是英语语法的自信心；通过 在相对真实的交际环境中使用目标

2、语言，增强 同学之间的互动和相互了解，使课堂活跃起来。,Read Grammar Focus and think about the following questions: 1. 现在完成时特殊疑问句的结构是什么？ 2.用什么疑问词来询问拥有某物品的时间？ 3.for后面接什么？ 4.since后面接什么？,Grammar focus,1. -How long have you had that bike over there? -Ive had it for three years. 2. -How long has his son owned the train and railway

3、set? -Hes owned it since his fourth birthday. 3. -Have you ever played football? -Yes, I did when I was little, but I havent played for a while now.,Grammar focus,1.现在完成时的句子结构： 疑问词+助动词have/has+主语+过去分词+其他 2.询问拥有时间的疑问词用 3.介词for后接一段时间，指某个动作到现在为止已持续了多久 4.since表示“自.以来”，用法如下： 作为介词，接一个时间名词； 作为连词，引导时间状语从句。,

4、Grammar focus,how long,bought the bag now,_|_|_ 2014 3 years 2017,How long has Jamie had this bag?,Jamie has had the bag for 3 years. Jamie has had the bag since 3 years ago. Jamie has had the bag since 2014. Jamie has had the bag since she was 23.,时间状语: 1. for +一段时间 e.g: for 3 years 2. since +过去的时间

5、点 e.g: since 2014 3. since + 一段时间+ ago e.g: since 3 years ago 4. since + 从句（一般过去时态） e.g: since she was 23.,Present Perfect Tense,1. How long have you lived here? Ive lived here _ twenty years. 2. Yes, Ive been here _ 1976. 3. Amy has had the toy bear _ she was a baby. 4. We havent seen each other _

6、last week. 5. My parents and I have been in Hong Kong _ two days.,for,since,since,since,for,Exercise,Ready?,A.Maria has come back since three days ago. ( ) Maria has been back since three days ago. ( ),Discuss,B.How long has Tom borrowed the book? ( ) How long has Tom kept the book? ( ),C.Tony has b

7、ought the computer for two years. ( ) Tony has had the computer for two years. ( ),注意：现在完成时肯定句和how long引导的疑问句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)。,句中动词的特点,Exercise,1. Becky_(has been. has become)a doctor for ten years. She likes her job very much. 2. We are late. The movie _(has started, has has been on) f

8、or ten minutes. 3. Ken, you should return the book to the library. You _(have borrowed, have kept)it for more than two weeks. 4.I _(have bought, have had )this bike since I was ten, so I want to buy a new one.,has been,has been on,have kept,have had,Ready?,become have been borrow have kept buy have

9、had,非延续性动词和延续性动词之间的转换,2. 转化为“be + 形容词/副词/介词/名词” begin / start have been on go out have been out get to/arrive/reach have been (in) leave have been away,4a,Rewrite the sentences using for or since.,Jim is in Japan. He arrived there three days ago. 2. They are very hungry. Their last meal was ten hour

10、s ago.,They have been hungry for ten hours/since ten hours ago.,Jim has been in Japan for three years.,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.,I have had a camera since 2009.,I have known Anna for three year

11、s/ since three years ago.,Linda has been ill since Monday.,4b,Fill in the blanks with the correct forms of the verbs in brackets.,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

12、dog.,have never been,go,have never owned,always want,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 two years. They _ (miss) their hometown a lot and hope to visit the place next

13、 year.,have had,bought,havent been,miss,5. This museum _ (be) here for over 20 years. It _ (be) one of the oldest buildings in this small town.,has been,is,1. Wow, you are really a born basketball player. Thanks. You know, I have been in the school basketball team _. A. for two years ago B. since tw

14、o years C. since 2011 2. Do you enjoy living in Daxu? Yes. I have already fallen in love with Daxu, though I _ the town for a week. A. have arrived in B. have been in C. have been to,Exercise,3. My sister has learnt English_. A. for twelve years ago B. since she was four C. twelve years ago 4. She _ the book _ two days ago. A. has borrowed;