英语人教版八年级下册Unit 10.ppt

1、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 havent 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 An

2、na. 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 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

3、 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 never 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 t

4、he 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,very much,5. This museum _ (be) here for over 20 years. It _ (be) one of the oldest buildings in this small to

5、wn.,has been,is,1. Complete the sentences using for or since.,1. I havent been to a museum _. 2. I havent written a letter _. 3. I havent ridden a bike _. 4. I havent seen a movie _. 5. I havent played computer games _.,Self check,for two years/since two years ago,since I was ten years ago,for five

6、years,since 2010,for one year,A: Hey Eric, _ you enjoyed your time in Beijing so far? B: Yes, it _ been great! Everyone is so friendly. A: How long _ you been in China now? B: Oh, I _ here _ about two years now.,have,has,have,have been,for,2. Complete the conversation.,A: Wow, that means you havent

7、_ back to the US for two years. B: No, I _ been back twice_ moving to China. _ you been to the US before, Li Juan? A: Yes, I went there once when I _ 10 years old, but I _ not been back _ then.,been,have,after,Have,was,have,since,他的爷爷已经去世2年了。 Nick 参军3年了. 他离开深圳好长时间了。 这本书我已借了4个月了.,His grandpa has been

8、 dead for 2 years.,Nick has been in the army for 3 years.,He has been away from Shenzhen for a long time.,I have kept the book for 4 months.,method 2:,It is + 时间段 +since +一般过去时的句子.,他的爷爷已经去世2年了。 Nick 参军3年了. 他离开深圳好长时间了。 这本书我已借了4个月了.,It is 2 years since his grandpa died.,It is 3 years since Nick joined

9、 the army.,It is a long time since he left Shenzhen.,It is 4 months since I borrowed the book .,他 参军五年了。 He joined the Army five years ago . He has been in the Army for five years. It is five years since he joined the Army,电影开始五分钟了。 The film began five minutes ago. The film has been on for five minu

10、tes. The film has been on since five minutes ago. It is five minutes since the film began.,现在完成时,二: 用法2: 现在完成时表示从过去一直持续到现在的动作或状态，并可能还将持续下去。简称“延续用法”.,1）常与for, since引导的时间段的时间状语连用.,since , for 的用法:,2）动词使用延续性动词。,此用法需注意两点：,因为瞬间动词在肯定句、,since: (自以来) 1)since+时间点 Hehasstayedheresince5oclock. 2)since+ 时间段+ ag

11、o Hehasstayedheresince5hoursago.,疑问句中不能和时间段连用.,since一段时间agofor时间段; since two weeks ago=for two weeks;,I have kept the library book for a week. = I have kept the library book since a week ago.,在现在完成时态中，for与since引导的时间 状语可以相互转换。,3)since+ 从句(句子要用一般过去时态） ShehastaughtEnglishsincehecamehere. for: (长达）for+

12、时间段 He has kept the book for 2 weeks.,用for和since填空。,_three hours _three oclock _two days _yesterday afternoon _I came here _last Sunday,_a week _a long time _1997 _two weeks _three years ago _ last month,for,since,for,since,since,since,for,for,since,for,since,since,在现在完成时中短暂性动词在肯定句、疑问句中不 能与时间段连用。为了表述这种意思，我们常 将短暂性动词转变成相应的延续性动词来代替非 延续性动词，或变成： It is + 时间段 +since +一般过去时的句子.,常见非延续性动词和延续性动词的转变,第一类：短暂动词 be + adj. die finish open/close fall ill/asleep marry sb/get married to 第二类：短暂动词 be + 介词. start/begin leave join,be dea