微课堂(现在完成时since和for的用法).ppt

1、Grammar B 现在完成时有关since和for的用法,since表示“自以来”，后面接“时间点”,常用的表示“时间点”的表达方式有：,自从2012年以来,since 2012,自从两年前以来,since two years ago,自从他进校以来,now(2014),2012,since he came to this school,Note： since后面如果接从句时，用一般过去时，如上题中的came,for与since则不同，后面接“时间段”， 表示“已经有时间了”,常用的表示“时间段”的表达方式有：,已经两年了,for two years,for 和since之间可以相互转换,如

2、：for two years,=since two years ago,如果相对于现在的时间的话，也可以说成， since 2012,下面是习题时间,Grammar B 现在完成时有关since和for的用法,请选用for或since填空,1. _ 2000,2. _ half an hour,3. _ I was born,4. _ half an hour ago,7. _ a couple of years,8. _ MH 370 (马航370) disappeared,5. _ last month,6. _ 8 oclock,Grammar B 现在完成时有关since和for的用法

3、,since,for,since,since,since,since,for,since,1. He has lived in Zhenjiang _ the year before last. 2. Ive known him _ we were children. 3. Our teacher has studied Japanese _ three years. 4. She has been away from the city _ about ten years. 5. Its about ten years _ she left the city.,用for或since将句子补充完

4、整,Grammar B 现在完成时有关since和for的用法,since,since,for,for,since,中考链接：,17.MysisterhaslearntEnglish,.,A.fortwelveyearsago,B.sinceshew,asfour,C.twelveyearsago,D.attheageoffour,17.MysisterhaslearntEnglish,.,A.fortwelveyearsago,B.sinceshew,asfour,C.twelveyearsago,D.attheageoffour,My sister has learnt English _

5、. A. for twelve years agoB. since she was four C. twelve yeas ago D. at the age of four,2. British Prince william(威廉王子)and Kate have been married _. A. for nearly two months B. two months ago C. since two monthsbeforeD. in 2011,用法总结：,for + 一段时间 since + 一段时间+ ago since + 时间点 since + 从句,Grammar B 现在完成

6、时有关since和for的用法,B,A,能力提升：,They havent seen each other since last week. （同义句转换） They havent seen each other _ _ _. They havent seen each other _ _ _ _. 2. Kitty has been in Hong Kong for two days. （同义句转换） Kitty has been in Hong Kong _ _ _ _. 3. 我两个小时前就在这儿了。 4. 他已经睡了十个小时了。 5. 李先生从2005年起住在这套公寓里。 6. 这些工人已经工作七个小时了。,Grammar B 现在完成时有关since和for的用法,for a week,since a week ago,since two days ago,He has slept for ten hours.,These workers have worked for seven hours.,Mr. Li has live