新目标英语八年级下-现在完成时的教案及练习

第 1 页 共 8 页 现在完成时态--练习资料 我们先来翻译几个句子 1 你已经问过这个问题两遍了，别再烦我了。 2 我能借你的字典用一下吗对不起，已经借给 tom 了。 3 你以前见过她吗不，从来没有过。 4 你曾经去过北京吗是的我去过那儿三次。 5 你已经看完那本小说了吗是的，我已经把它还给图书馆了。 ＊基本定义 现在完成时有两种用法 1.过去发生的某一动作对现在造成的影响或结果或到现在为止已经发生或完成的动作。 2.表示过去发生的、持续到现在的动作或状态。 句型转换 1. I have been to Macau before. （改为否定句 I _________ _________ been to Macau before 2. Li Ming has already finished his homework.（改为一般疑问句并做肯定和否定回答） _____________ Li Ming _____________ finished his homework yet 3.They have been here since 2000. 对划线部分提问 have they been here ＊句型构成 基本结构主语have/has动词的过去分词（p.p） ①肯定句主语have/has动词的过去分词p.p（V-ed）宾语（或者其他）. ②否定句主语havenot/hasnot 动词的过去分词（p.p） （V-ed）宾语. ③一般疑问句Have/Has主语动词的过去分词（p.p（V-ed）宾语（或者其他） ④特殊疑问句特殊疑问词一般疑问句（have/has主语过去分词其他 第 2 页 共 8 页 将一般过去时的句子改写为现在完成时的句子。 1. My father bought many books for me yesterday . Now , I have a lot to read because ________________________________ 2. I saw this film last week. Now, I know this film because I_____________________. 3. I did my homework yesterday. Now, I can give it to the teacher because I______________ 用法一 存在存在）例如 ＊ 一 表过去发生的某一动作对现在造成的影响或结果,（强调结果现在还强调结果现在还 I have just cleaned my clothes. 我刚洗过衣服。 （“洗衣服”是发生在过去的动作，对现在造成的结果是“衣服干净了”） I have just had my breakfast. 对现在的影响不饿 Has he had his breakfast Yes, he has. 体会时间状语 ① I have never heard of that before. ② Have you ever ridden a horse ③ She has already finished the work. ④ Have you milked the cow yet Yes, I have done that already. ⑤ I’ve just finished my homework. ⑥ He has not come yet. ＊二.通常与表示包括现在在内的时间副词 just 谓语动词之前 （刚刚） ， already（已经肯定句 ）,before（之前）,yet （一般疑问句末）,已经；否 定句还） never（从不）,ever 疑问句twice （两次）,recently近来）等 状语连用，可以和瞬间动词和持续性动词连用, 请先圈出时间状语请先圈出时间状语，再用词的适当形式填空 1. I ________have lunch already. 2. the train_______ arrive yet 3.Tom ____ never_______ be to China. 4. The twin ______ just _____see my father. 5. The twins ____see my father just now. 6.______ you ever _______ride a horse Never. 7._____ you ________clean the room Yes, we__________do that already. When _______ you ______do it We _______do it an hour ago. 8._____ he ______see this film yet No. When _____ he _____see it He ______ it tomorrow. 9. How many times _____ you ______come here Once. 第 3 页 共 8 页 用法二 表示过去已经开始，持续到现在的动作或状态，也可以表示一直持续到现在并可能还将持续下 去。 A动词使用延续性动词。 B 和表时间段的时间状语连用。 常与 for或 since引导的时间连用，so far, up to/till now到目前为止, in the last/past一段时间， all one’s life某人的一生中, by now, these days目前，for two years、since 1984、since he came here I haven’t seen her these days. She has learnt English for 3 years/since 3 years ago. They have lived here since 1990. What has happened to the USA in the last 350 years 一、注意 1since＋一段时间＋ago＝for＋时间段; since two weeks agofor two weeks; I have kept the library book for a week. I have kept the library book since a week ago. 2since 时间点＝for＋时间段 since 2000for 13 years 3 since从句常用一般过去时 The Greens have lived in Beijing since they moved to Beijing from Paris 4It is /has been 一段时间 since 从句. 自从某事发生已有一段时间了