现在完成时讲解课件[公开课].ppt

语法课堂;上一页;Tom is looking for his key to his bike.;现在完成时;现在完成时的主要用法;上一页;现在完成时的时间状语;;;;;;;;;;;;;;;;;since: (自…以来) 1)since+时间点 He?has?stayed?here?since?5?o’clock. 2)since+ 时间段+ ago He?has?stayed?here?since?5?hours?ago. 3)since+ 从句 She?has?taught?English?since?he?came?here. for: (长达） for+ 时间段 He has kept the book for 2 weeks.;瞬间动词和延续性动词 若句中出现时间段，则必须使用延续性动词。瞬间动词和延续性动词转换关系如下; ●但在否定句中，短暂性动词可以与时间段连用。如： She hasn’t come here for an hour. 她来这儿还没有一个小时。;Please point out any mistakes and correct;;Please point out any mistakes and correct;Please point out any mistakes and correct;Please point out any mistakes and correct;Please point out any mistakes and correct;Please point out any mistakes and correct;Please point out any mistakes and correct;Please point out any mistakes and correct;Please point out any mistakes and correct;Please point out any mistakes and correct;method 2: ;can you distinguish?;can you distinguish?;can you distinguish?;can you distinguish?;can you distinguish?;can you distinguish?;?与一般过去时的用法比较;The past tense or the present perfect tense ;The past tense or the present perfect tense ;The past tense or the present perfect tense ;上一页;动 词 填 空： 1._____ you ________(clean) the room? Yes, we __________(do) that already. When _______ you ______(do) it? We _______(do) it an hour ago. 2.______ he ______(see) this film yet? Yes. When _____ he _____(see) it? He ______ it last week. 3. How many times _____you______(be) there? ;4. I __________ (read) the novel twice. It’s interesting. 5. She _________(go) to Pairs, hasn’t she? Yes. How ______ she _______(go) there? She _______(go) there by air. 6. So far, many countries _______________(develop) their software programs. 7.Mr Chen ______(give)up smoking last year. 8.Mr Chen __________(give) up smoking since last year. ;用Have been to, have gone to, have been in 填空;改 错 1. How long have you begun to study English? 2. I have borrowed this book for two weeks. 3. The river ha