初中英语人教版八年级下册Grammar Focus.ppt

1、Unit 10 Ive had this bike for three years.,Section A 3 Grammar focus - 4c,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 set? Hes owned it since his fourth birthday. 3. Have you ever played football? Yes, I did when I wa

2、s little, but I havent played for a while now.,Grammar focus,现在完成时的持续型用法 现在完成时还可表示过去某一时间开始并一直持续到现在(包括“现在”在内)的动作或状态，该用法中的动词多是延续性动词，常见的时态标志词有since, for等。,现在完成时,1. since意为“自从以来”, 它既可作介词，也可作连词。作介词时, 后接表示过去的时间点, 表示某事开始的时间；作连词时, 引导时间状语从句, 从句常用一般过去时。如： We have been here since last Sunday / two years ago/20

3、11. Mr. Jones has worked here since he was twenty-five.,2. for作介词，后接一段时间，表示一个动作或一种状态已经持续了多长时间。如： I have studied here for three years. She has been away for five days.,注意： 1.对since和for引导的时间状语提问时, 常用how long。如： Jane has learned to play the piano since two years ago. (对划线部分提问) How long has Jane learned

4、 to play the piano?,2.在现在完成时中，含有for和since的句子可以相互转换。如： They have lived here for five years. =They have lived here since five years ago.,3.在现在完成时中，表示短暂意义的动词(如come和see)在肯定句和一般疑问句中不能和表示一段时间的时间状语连用，但在否定句中是可以的。如： Mike has come to London for three weeks. () They havent seen each other for many years. (),短暂

5、性(短语)动词与延续性(短语)动词 和与表示状态的短语之间的转化 1.有些短暂性(短语)动词可转化为相应的延续性(短语)动词。常见的有： becomebe borrowkeep buyhave / own catch a coldhave a cold comestay put onwear/be on go to sleepsleep move tolive in,2.有些短暂性(短语)动词可转化为表示状态的短语。常见的有： leavebe away fall asleep be asleep diebe dead fall ill be ill begin / startbe on fin

6、ishbe over joinbe in / be a member of（参加，加入） openbe open come backbe back closebe closed returnbe back arrive/get/reach be in/at marrybe married losebe lost,1. When _ you _ the new bike? I _ it for 2 days. A. did, have; bought B. did, buy; have had C. did, buy; have bought (2015湖北恩施),【中考链接】,2. My fa

7、ther _ on business for two weeks.Hell return in three days. A. is leaving B. left C. has left D. has been away (2015广东汕尾),3. My grandparents _ in that city since 2008. A. will live B. live C. have lived D. were living (2015北京),4. We have been friends _. A. last year B. one year ago C. since we met l

8、ast year D. when we met last year (2015广西南宁),5. How happy the grandparents are! Yes, they _ for fifty years. A. have been married B. have married C. have got married D. married (2015四川眉山),6. What age did you leave home? I left home at 18, Neil. I _ your city for five years. A. have gone to B. have b

9、een to C. have been in D. have come to (2015江苏扬州),7. Amy, can we give away these soft toys? We _ them for many years. Mom, but I want to keep the bear. A. bought B. had C. have bought D. have had (2015湖北黄冈),8.Hurry up! The play _for ten minutes. A.has begun B.had begun C.has been on D.began 9.I have

10、 _the book for a mouth. A.borrowed B.lent C.kept D.bought 10.His father _the Party since 1978. A.joined B.has joined C.was in D.has been in,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 hours ago.,They

11、have not eaten 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 Ann for three years/ since three

12、 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 dog.,have neve

13、r been,go,have never owned,have always wanted,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 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,4c,Fill in the qu