2023年中考英语语法总结 现在完成时用法课件

The present perfect tense 现在完成时 He is full . He has had a big breakfast. 1.过去某一时间点发生的动作对现在产生影响。 通常连用的时间副词有：already（已经），ever（曾经）， never（从不），yet（还）so far（至今）， in the past/last few years(在过去的几年里） 功能： I have learned English for ten years 2.过去某一时间点发生的动作持续到现在或还将持续下去。 常常与for+一段时间，since+时间点，since then， ever since，since +从句 等时间状语连用。 基本结构 The present perfect tense 肯定句： 主语：have / has + done（动词过去分词） 助动词 （可以帮 助构成肯定、疑问 和否定句） 基本结构 The present perfect tense 否定句： 主语+haven't / hasn't + done（动词过去分词） 一般疑问句句： Have / Has +主语+ done（动词过去分词） 1.He has cleaned his room. (写一个一般疑问句） Has he cleaned his room? . They have come back from work. (写否定句） They haven’t come back from work. 现在完成时的标志词具体用法 A: ______ your brother ______ his homework yet? (finish) B: Yes, he ‘s already done it. Key words（标志词） Has finished yet already 注意：already 用于肯定句， yet 用于疑问句和否定句末。 yet 否定句：还没 疑问句：已经 A: _______ you ever _______ to the park? ( be ) B: No, never. Key words Have been yet already ever never 注意： ever 曾经 用于疑问句中 never 从来没有 带有否定意义 I ______ just ________ the desk, you can take it to your classroom . (repair ) Key words have repaired yet ever never just already Just 刚刚 与现在完成时连用 一般置于句中 Just now 刚才 与一般过去时连用 Tom ___________ in the factory since he left school ten years ago. (work ) Key words has worked yet ever never since 自...以来 already since+过去的一个时间点（如具体的年、月、 日期、钟点，1900， last month等等 since + 一段时间 + ago since + 含有过去式的句子 A: How long ______ you ________ in this school? (teach ) B: For 6 years. Key words have taught yet ever never since for（长达) already + 一段时间 We _______ only ____________ 100 trees so far. (answer ) Key words have planted yet(否和疑) ever never since for +一段时间 just already(肯) so far 到目前为止 twice