新PEP人教版八年级下册英语Unit10 Section A Grammar Focus-4c课件

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1、Unit 10 Ive had this bike for three years.,Section A Grammar Focus-4c,To learn the usage of for and since. To use the Grammar Focus sentences to cre ate simple conversation. To review the present perfect tense. To learn new word: hometown,Objectives,Review,Group Work,Youre having a yard sale. What w

2、ould you do with the money you raise?,Present Perfect Tense,现在完成时,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+时间段”、“since+过去时间点”、“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。,5,e.g. My uncle has worked at this factory for ten years. = My uncle has worked at this factory since

3、ten year ago. Ive lived here since 1990 自从1990年以来我就住在这里。 I havent seen him for three years. 我三年没有看见他了。,6,Shes been at this school since five years ago. 自从五年前她就在这个学校。 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。,7,for与since都能与现在完成时连用，但区别较大： （1）for后须接“时间段” e.g. He has studied English for

4、 five years. 他学英语5年了。 （2）since后须接“时间点” e.g. He has studied English since 1999. 他从1999年开始学英语。,for 和 since 在现在完成时中的应用,（3）二者可以转换 for + 一段时间 = since + 一段时间 + ago e.g. He has been here for five weeks. = He has been here since five weeks ago. 他到这儿已经有五个星期了。 （4）since能引导时间状语从句（主句用现在完 成时，从句用一般过去时），而for则不能。 e.

5、g. He has taught here since he came to China. 自从他来到中国就在这儿教书。,（5）现在完成时常用句型： It is (has been) +时间段+ since +时间状语或从句 e.g. It is four days since last Friday. 从上周五到现在已经四天了。 It has been two years since Jim came to Beijing. 吉姆来北京已经两年了。,This is the first (second) time that + 从句 句型中的that从句通常使用现在完成时。 e.g. This

6、 is the first time that Jenny and Danny have been to China. 这是珍妮和丹妮第一次来中国。 This is the third time that I have seen Karen. 这是我第三次见到凯伦。,（6）均须与延续性动词连用，也可以与非延 续性动词的否定式连用。e.g. I have had this computer since four years ago. I havent bought anything for two months. I havent heard from him for 3 weeks.,（7）二

7、者引出的时间状语往往用 how long提问。 e.g. How long have you had this book? For a week./Since a week ago. 这本书你买多久了? 买一周了。,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,非延续性动词和延续性动词之间的转换,14,2. 转化为“be + 形容词/副词/介词/名词” begin / start be on go out b

8、e out close be closed open be open get to/arrive/reach be (in) die be dead leave be away,15,finish be over fall asleep 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,16,The old man died 4 years ago. The old man has been dead for 4 years. It is 4 years sin

9、ce the old man died. Four years has passed since the old man died. He joined the Party 2 years ago. He has been in the Party for 2 years. I bought the book 5 days ago. I have had the book for 5 days.,e.g.,I.选择for或since填空。 1. I have been here _ five months ago. 2. He has been a soldier _ about two mo

10、nths. 3. Great changes have taken place _ you left. 4. His grandpa has been dead _ ten years. 5. I have studied English _ I was 12 years old. 6. It is two years _ I became a postgraduate student.,since,for,since,for,since,since,Exercises,1. She _ this book for nearly three weeks. A. has borrowed B.

11、has lent C. has bought D. has kept 2. Ten years has passed _ the CCTV event People Who Moved China took place in 2002. A. when B. while C. before D. since,II. 单项选择。,19,Grammar Focus,Jim is in Japan. He arrived there three days ago. _ 2. They are very hungry. Their last meal was ten hours ago. _,Rewr

12、ite the sentences using for or since.,Jim has been in Japan for three days.,They havent eaten for ten hours.,4a,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

13、 for three years.,Linda has been ill since Monday.,1. I _ (never be) to the water park before. Iwant 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,Fill in the blanks with the correct form

14、s of the verbs in brackets.,have never been,go,have never owned,have always wanted,have had,4b,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 pl

15、ace next year. 5. This museum _ (be) here for over 20 years. It _ (be) one of the oldest buildings in this small town.,bought,havent been,miss,has been,is,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 l

16、ong have you owned it?,4c,I. 单项选择。,1. Miss Liu has taught English _ she came here. A. since B. as C. when D. for 2. Look at these stamps. I _ them for five years. Wow, they are wonderful. A. kept B. have kept C. have bought,Exercises,3. My sister has learnt English _. A. for twelve years ago B. sinc

17、e she was four C. twelve years ago D. at the age of four 4. She _ the book _ two days ago. A. has borrowed; since B. has kept; since C. kept; for 5. Did you borrow the comic book from the library? Yes, I _ it for three days. Ill return it this afternoon. A. borrowed B. kept C. have borrowed D. have

18、kept,1. We have lived here _ 1990. 2. How long have you studied here? _ 5 years. 3. The boy has had a bad cold _ last night. 4. I have waited _ two hours. 5. Mr. Huang has kept the book _ last month. 6. I have taught in the school _ I came here.,since,since,For,II. 用for和since完成句子。,for,since,since,7.

19、 We have been friends _ a long time. 8. I have been in Nanjing _ eight years. 9. Sally has been away from London _ last Saturday. 10. Our school has changed a lot _ the new building was built. 11. Tommy has had this motorcycle _ three years. 12. My parents have been married _ 20 years.,since,for,for

20、,since,for,for,III. 按要求改写句子。,1. The class was over ten minutes ago. (同义句转化) The class _ for ten minutes. 2. His grandpa died in 2004. (同义句转化) His grandpa _ for 10 years. 3. The exhibition has been on for three days. (同义句转化) The exhibition _ three days ago.,has been over,has been dead,started/began,3

21、0,4. My parents got married 25 years ago. (同义句转化) My parents _ for 25 years. 5. I bought the MP3 last week. (同义句转化) I _ the MP3 for a week. 6. Kitty joined the Reading Club last year. (同义句转化) Kitty _ the Reading Club since last year.,have had,has been a member of,have been married,31,7. My uncle beg

22、an to teach Chinese when he was 23. (同义句转化) My uncle has _ Chinese _ he was 23. 8. We havent seen each other for 2 years. (同义句转化) Its two years _ we last _. 9. The meeting has been over for an hour. (对划线部分提问) _ has the meeting been over?,taught since,since met,How long,32,IV. 根据汉语提示，完成下面的句子。 1. 你上个星

23、期五就借了我的书，还没有看完吗？ You _ my book _ last Friday. Havent you finished reading it? 2. 我从七点起就开始等了。 I have waited _. 3. 她已经到达公司半个小时了。 She has been in the company _.,have kept since,since seven oclock,for half an hour,have kept since,since seven oclock,for half an hour,4. 他离开家已经10年了。 He has been away from h

24、ome _. 5. 足球赛已经开始15分钟了。 The football match _ 15 minutes. 6. 他从去年起加入了篮球俱乐部。 He has been a member of the Basketball Club _.,for ten years,has been on for,since last year,34,7.这本字典我已买了三年了。 I have had this dictionary for three years. 8.他离开中国三年了。 He has been away from China for three years. 9.我认识他们已经五年了。

25、 I have known them for five years.,10.他们已去美国五年了。 They have been in the USA for five years. 11.自从他搬到济宁，他就住这儿了。 He has been here since he moved to Jining. 12.自从1999年以来他们就认识。 They have known each other since 1999.,（2019 四川眉山） Your new watch is so nice! When did you buy it? In October. I it for two mont

26、hs. A. had B. bought C. have had D. have bought,C,中考链接,【解析】 句意“你的新手表很漂亮，你什么时候买的？”,“10月份，我已经买两个月了”。A.一般过去时；B.一般过去时；C.现在完成时；D.现在完成时。根据for two months可知，用现在完成时，排除A和B；且buy为瞬间动词，不与一段时间连用，可以转换为延续性动词have，故选C。,U9 S -,（2019淮安） Where are the teachers now? In the meeting room. They _ the meeting for 10 minutes. A. have begun B. have been on C. have had D. have been held,C,【解析】 句意：“老师们现在在哪里？”，“在会议室里，他们已经开会10分钟了。” 。根据for 10 minutes可知应用现在完成时，动词用延续性动词。begin是短暂性动词；be on进行，主语应是the meeting；have been held是被动语态，主语应是the meeting。故选C。,Review the Grammar Focus and tell the differences between for and since.,Homework,