Unit 1 Section A 语法：一般过去时 VS现在完成时课件2026-2027学年人教版英语九年级上册

这是一份Unit 1 Section A 语法：一般过去时 VS现在完成时课件2026-2027学年人教版英语九年级上册，共15页。
Unit 1 Section A 语法精讲核心定义与本质区别①一般过去时：表示过去某个时间发生的动作 / 存在的状态，和现在没有联系。例：I finished my homework last night. 昨晚我完成了作业。（动作已结束，与现在无关）一般过去时 VS 现在完成时1②现在完成时：强调动作发生在过去，但对现在有影响或结果，或动作从过去持续到现在句子中不明确指出动作发生的具体时间，而是突出与现在的联系。例：I have finished my homework. 我已经完成了作业。 （暗示现在可以做其他事，对现在有影响）核心用法与时间标志词的差异2①一般过去时：描述过去某个确定时间发生的、已结束的动作描述过去的习惯性动作描述过去的状态例：He visited his grandparents last Sunday. 他上周日去看望了祖父母。→ 仅描述过去的动作，和现在无关 She lived in Beijing for 5 years, but now she lives in Shanghai.她在北京住了 5 年，但现在住在上海。→ 居住的动作已结束②现在完成时：已完成用法：过去的动作对现在造成影响 / 结果 （动作已结束，但影响持续）未完成用法：动作从过去开始，持续到现在，可能还会继续经验 / 经历用法：过去发生过的动作，作为现在的经验I have lost my key. I can’t enter the room.我把钥匙丢了，进不了门。→ 丢钥匙的动作在过去，影响是现在进不了门She has lived in Beijing for 5 years.她在北京住了 5 年。→ 从过去住到现在，还可能继续住I have been to Paris twice.我去过巴黎两次。→ 过去的经历，作为现在的经验时间标志词结构对比①一般过去时：肯定句：主语 + 动词过去式 + 其他 He finished his homework.否定句：主语 + did not (didn't) + 动词原形 + 其他 He didn’t finish his homework.一般疑问句：Did + 主语 + 动词原形 + 其他？ Did he finish his homework?3②现在完成时：现在完成时肯定句：主语 + have/has + 动词过去分词 + 其他 He has finished his homework.否定句：主语 + have/has + not + 动词过去分词 + 其他 He hasn’t finished his homework.一般疑问句：Have/Has + 主语 + 动词过去分词 + 其他？ Has he finished his homework?模拟考场— Have you ever ______ to London?— Yes, I ______ there last summer.A. been; wentB. gone; wentC. been; have beenD. gone; have gone模拟考场My brother ______ his homework an hour ago, so he can play games now.A. finishesB. has finishedC. finishedD. is finishing— ______ you ______ the report?— Yes. I ______ it just now.A. Did; finish; finishedB. Have; finished; have finishedC. Have; finished; finishedD. Did; finish; have finished模拟考场用动词的正确时态填空。I ___________ (read) this book three times already. It’s really interesting.She __________ (buy) a new bike yesterday, so she can ride to school today.模拟考场have readbought按要求完成下列各题。Jane has met a lot of famous people. (改为一般疑问句)_______ Jane _______ a lot of famous people?He has already eaten all the food on the plate. (改为否定句)He _______ _______ all the food on the plate _______.Hashasn’t eatenmetyet模拟考场