现在完成时讲解课件技术介绍.pptVIP

上一页;现在完成时; 现在完成时的构成;现在完成时的主要用法;上一页;现在完成时的主要用法;短暂性动词与时间段的关系; ? 翻 译 练 习： 1.我买了这块手表五年了。 2.这位老人已经死了十年了。; 3.他已经回来三天了。 4.自从六点钟他就来这儿了。 5.我离开家乡已十年了。 ;现在完成时的主要用法;现在完成时的主要用法;现在完成时的主要用法;现在完成时的主要用法;?与一般过去时的用法比较;eg：He has bought an English-Chinese dictionary. 他已经买了一本英汉字典。 He bought an English-Chinese dictionary. 他曾买过一本英汉字典。;二．当有一个表示过去某一特定时间的状语时，不用现在完成时，而用一般过去时: ;三．常与一般过去时连用的典型的 表示过去时间的状语:;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. ;选用 for和 since填空: 1.We haven’t seen each other ______ a long time. 2.His father has been in the Party ______ 10 years ago. 3.The film has been on ______ 20 minutes. 4.Mr Green has worked here ______ he came to China. 5.His grandparents have been dead ______ several years. 6. It’s five years _______ we met last time.;改 错 1. How long have you begun to study English? 2. I have borrowed this book for two weeks. 3. The river has become very dirty since last August. 4. Our manager is away today. He has been to Guangzhou on business. 5. He has gone out for two years.;The house is dirty. We _______it for weeks.? A didn’t clean B hadn’t cleaned C don’t clean D haven’t cleaned 2. ---____the sports meeting might be put off.?---Yes, it all depends on the weather.?A I’ve been told B I’ve told C I’m told D I told 3. ---- I’m sorry to keep you waiting.?----Oh, no