Unit2HeroesLessom5ModernHeroes时态讲解及练习答案课件（北师大必修1).ppt

必修1;Present perfect;objective; Since then, she has won Wimbledon and the US Open twice. 2. Has tennis ever caused problems between the sisters?; Since then, she ________ (win) Wimbledon and the US Open twice. 2. _____ tennis ever ______ (cuase) problems between the sisters?;用括号内所给动词的正确形式填空。;4. We ___________ (not meet) our new neighbors yet, so we don’t know their names. 5. — Have you been to Australia? —Yes. I ________ (be) there three times. And I _______ (go) there with my uncle for the first time. 6. My friend, who __________ (serve) on the International Olympic Committee all his life, is retiring next month. ;Past Simple:;;现在完成时及其时间状语;Look at the dialogue below and complete the rule with already or yet.;使用现在完成时的句型 1) 现在完成时+since + 点时间状语(名词、短语、从句,其中从句用一般过去时) 2) 现在完成时+ for+ 段时间状语 3) It / This is the first /其他序数词/ last time + that 从句中,从句使用现在完成时。;I’ve lived in this town since 1990. We’ve known each other since we were at school.;现在完成时表示某一已经完成的动作对现在造成的结果或影响，强调的是现在的情况，所以不能与表示过去的时间状语连用；一般过去时只表示某一动作或状态在过去发生或存在过， 与现在不发生联系，它可以与表示过去的时间状语连用。;He has read that book. (说明他现在知道那本书的内容。) He read that book last year. (只说明他去年读过那本书。) He has gone to America. (他现在不在此地， 在美国。) He went to America. (只说明他去过美国。);注：另附word文档，点此链接;1. Tom in the library every night over the last three months. (2011北京) works B. worked C. has been working D. had been working 2. When I got on the bus, I_____I had left my wallet at home. (2011山东) was realizing B. realized C. have realized D. would realize;3. - I remember you were a talented pianist at college. Can you play the piano for me? -Sorry, I the piano for years. (2012 湖南) don’t play B. wasn’t playing C. haven’t played D. hadn’t played 4. Wal-Mart, which is one of the largest American supermarket chains, ______ some of its store open 24 hours on Mondays through Saturdays. (2012 安徽) keeps B. keep C. hav