九年级上册 第一单元Unit 1 Topic 3 Section B修改后(2).ppt

Topic 3 The world has changed for the better Section B  Unit 1 The Changing World for + since + 现在完成时用法 Ⅲ:和以下时间状语连用 从句 时间点 一段时间+ago 一段时间 1. You have been in New York _______ a long time. for 2. The city has improved a lot _____ I came here a few years ago. since 延续性动词 since 8:00 The woman left home at 8:00. for 2 hours 8:00 present 10:00 past 短暂性动词 → 延续性动词 leave → be away from She has been away from home since 8:00. = She has been away from home for 2 hours. He bought a computer in 2007. for ten years 2007 present 2017 past since 2007 He has had a computer since 2007. = He has had a computer for ten years. 短暂性动词 → 延续性动词 buy → have 短暂性动词 come -------- leave -------- die -------- buy -------- begin -------- borrow -------- marry -------- catch a cold -------- close -------- join -------- fall ill -------- 延续性动词 be be away (from) be dead have be on keep be married have a cold be closed be a member of / be in be ill 见书本P124. Xiao Lin is a member of the Helpers’ Club. He is the secretary of the club. Besides, he is an excellent engineer. His father is a fisherman. 助手俱乐部 1. His father died in 1992. His father ________________ (be dead) for many years. 2. He left the army because of a leg wound in 2002. He ____________________ (be away from) the army for seven years because of a leg wound. 3. He came to Beijing in 2003. He ____________ (be in) Beijing since 2003. has been dead has been away from has been in 4 He joined Helpers’ Club in 2004. He __________ (be) a member of Helpers’ Club since 2004. 5. He bought a house in 2005. He __________ (have) a house since 2005. 6. He borrowed the car in 2008. He __________ (keep) the car for one year. has been has had has kept 1b Listen to 1a and mark T(true) or F(False). Maria and Jane are talking about a program in China . ( ) The program helps the homeless people in many ways . ( ) The program also trains thos