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课件网) Module 2 Unit 3 Language in use Grammar Free Talk A: Have you ever been to… B: Yes, I have. / No, I haven’t. 现在完成时 ( the present perfect ) 1 2 能掌握现在完成时的结构、用法及其 各种句型。 能熟练运用现在完成时谈论过去的经历对现在的影响。 目标一:掌握现在完成时的结构、用法及其各种句型 Activity 1 Read the following sentences first and put them into Chinese, then talk about them in groups. 1. Have you ever won any prizes before 2. I haven’t travelled much. 3. They have been to many interesting places. Group Discussion 小组合作观察每个句子，讨论、总结并分组展示。 Task 1: 观察句子的谓语，根据其特点总结现在完成时的 结构并思考其用法； Task 2: 观察并推导出现在完成时的各种句型, 并查阅相关 资料总结, 当主语(人称)发生变化时句型如何变化； Task 3: 观察并尝试总结动词过去分词的变化规则。 1. Have you ever won any prizes before 2. I haven’t travelled much. 3. They have been to many interesting places. Activity 2 每个小组派代表总结发言。 1 组 2 组 3 组 4 组 Activity 3 Summary 现在完成时 1.表示在以前某个时间已经发生的行为或曾经做过的事情对目前有某种影响 2.表示到目前为止已经完成的事情 1.结 构 2.用 法 have + 动词过去分词 has +动词过去分词 3.句 型 ①肯定句: Have/Has+主语+动词的过去分词(p.p)(V-ed)+宾语 肯定回答: Yes, 主语+ have/has. 否定回答: No, 主语+ haven't/hasn't. ②否定句: ③一般疑问句: 主语+have/has+动词的过去分词(p.p)(V-ed). 主语+have/has not (haven't/hasn't) +动词的过去分词(p.p)(V-ed). 主语为第一、二、三人称 及其复数时？ 人称 肯定句 否定句 疑问句及回答 第一人称 I have seen the questionnaire in this newspaper I have not (haven't) seen the questionnaire in this newspaper. Have you seen the questionnaire in this newspaper Yes, I have./No, I have not (haven't). We have travelled around the world. We have not(haven't) travelled around the world. Have you travelled around the world Yes. we have./No, we have not (haven't). 第二人称 You have been to England. You have not(haven't) been to England. Have you been to England Yes, I/we have. No. I/we have not (haven't). 第三人称 He/She has been to Disneyland in Los Angeles. He/She has not (hasn't) been to Disneyland in Los Angeles. Has he/she been to Disneyland in Los Angeles Yes, he/she has. No. he/she has not (hasn't). They have given concerts all over the world. They have not (haven't) given concerts all over the world. Have they given concerts all over the world Yes, they have./No, they have not (haven't) 4.动词过去分词的变化规则 规则动词的过去分词的构成规则与规则动词的过去式的构成规则相同。 (1) 一般动词，在词尾直接加"-ed "。e.g. work — worked (2) 以不发音的"e"结尾的动词，只在词尾加"-d "。e.g. live — lived (3) 以"辅音字母+ y "结尾的动词，将"y"变为"i"，再加"-ed"。 e.g. study — studied, cry — cried (4) "重读闭音节"结尾，且末尾只有一个辅音字母(w、y、x除外), 辅音字母前只有一个元音字母，先双写该辅音字母，再加"-ed"。 e.g. stop — stopped, plan — planned 4.动词过去分词的变化规则 不规则动词的过去分词，其变化形式需谨记。例如： be — was / were — been fin ... ...
