英语人教版八年级下册unit 10 .pptx

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1、ACTION创新微课现在开始现在完成时（带有since和for）Since“自从；从以来”一般用于现在完成时态，后面接一般过去时的时间或者动作；也可以接一段时间加上ago.创新微课现现在在完完成成时时（带带有有since和和for）e.g.I have lived here since I moved to this city.Tom has worked in this factory since the year 2003.My father has been in France since two weeks ago._过去的动作_过去的时间_一段时间+ago for 用于现在完成时态的

2、时候，后面要与一段时间连用，表示动作延续时间的长度.创新微课现现在在完完成成时时（带带有有since和和for）e.g.They have done their homework for 2 hours.That woman has been waiting for you for half an hour.The workers have built that hall for months._一段时间 创新微课现现在在完完成成时时（带带有有since和和for）e.g.They have done their homework for 2 hours.That woman has been

3、 waiting for you for half an hour.The workers have built that hall for two years.They have done their homework since 2 hours ago.That woman has been waiting for you since 9:00.The workers have built that hall since 2014.创新微课现现在在完完成成时时（带带有有since和和for）e.g.His father has died for 3 years.Tom has come t

4、o China for five months.I have bought this bike since I left school.注意：短暂性动词不能与since和for搭配使用！更正：His father has been dead for 3 years.更正：Tom has been in China for five months.更正：I have had this bike since I left school.创新微课现现在在完完成成时时（带带有有since和和for）单项选择：1.I have watched TV _ ten minutes.A.for B.since C.and D.to 2.The boys have played football since_.A.two hours B.fifty minutes C.next year D.twenty minutes ago 3.My sister _ this doll for two days.A.has bought B.has had C.have buy D.buys 4.Toms grandma _ for five years.A.has been dead B.has dead C.has been died D.died A D B AEND同学，下节再见