文档介绍：Chapter 3 The night of the horse Chapter 3 The night of the horse Language Language 一、结构: 二、句式: 三、用法及标志词: 四、注意事项: 【精点分析】一、现在完成时态的结构: 主语+ have / has + 动词过去分词(注:过去分词规则变化方式同过去式, 不规则变化见不规则动词表)例: I have finished my homework. He has found his pen. 二、现在完成时态的句式:(以动词 see 为例) 1、陈述句: I / We / You / They have seen this film. He / She / It has seen this film. 2、一般问句及简略回答: Have you / they seen this film.? Yes, I /we / they have. No, I / we / they haven't. Has he / she / it seen this film.? Yes, he / she / it has. No, he / she / it hasn't. 3、否定句: I / We / You / They haven't seen this film. He / She / It hasn't seen this film. 三、现在完成时态的用法: 1. 表示已完成的某一动作对现在造成的影响或结果 1) 标志词: already :多用于陈述句,位于 have/has 后,有时位于句尾。例: I have already finished my homework. yet :用于疑问句和否定句,位于句尾。例: Have you found your lost book yet ? I haven't had breakfast yet . ever :多用于疑问句,问初次经历。例: Has your father ever spoken to a foreigner? never :用于否定句,位于 have/has 后例: We've never met such a tall man. just : 多用于陈述句,位于 have/has 后例: Lucy has just washed her clothes. before :可用于各句式,位于句尾。例: I have read this book before. He hasn't been abroad before. Have you flown to Hainan before? b. 无标志词的: 例: He is not feeling well now. He has caught a cold. I have lost the key. I can't go into my room. 。 。 ? ? ,我从未去过那儿。 I have already finished my homework. He has just cleaned the room. Have you had lunch yet? Have you ever been to New York before? No, I ’ ve never been there before. 2. 表示从过去已经开始,持续到现在(还可能继续去) 的动作或状态。标志词:1) for +一段时间例: We have lived in this city for ten years . 2) since +过去点时间 since +一段时间+ago since +从句(从句用一般过去式) 例: He has worked here since 1990. She has taught in this school since two years ago . We have known each other since we met. 3) so far, once/twice/ three times ,all