Unit 1 语法 - 过去时 & 现完的区别课件 2026-2027学年人教版九年级英语上册

Unit 1 - Grammar The Simple Past & Present Perfect Tense 一般过去时 & 现在完成时 一般过去时 Point 一般过去时表示过去某个时间发生的动作或存在的状态，常和表示过去的时间状语连用;也可以表示过去经常或反复发生的动作，常和表示频率的时间状语连用。 常与一般过去时连用的时间状语有: yesterday, just now, last + 时间，时间+ ago，that+时间， once upon a time, in the past, 介词 +过去时间 等。 一般过去时 be动词 实义动词 肯定句 否定句 一般疑问句及 回答 主语 + was/were + 其他. 主语 + 过去式 + 其他. 主语 + was/were not + 其他. 主语 + didn’t + 动词原形 + 其他. Was/Were + 主语 + 其他 ? (肯) Yes, 主语 + was/were. (否) No, 主语 + wasn’t/weren’t. Did + 主语 + 动词原形 + 其他? (肯)Yes, 主语 + did. (否) No, 主语 + didn’t. 一般过去时的句式 特殊疑问句 含be动词 Wh- + was/were + 主语 + 其他 ? 含实义动词 Wh- + did + 主语 + 动词原形 + 其他 ? 过去式变化规则--1.规则变化 Point 序号 变化规则 举例 1 以e结尾，直接加-d live - lived 2 以辅元辅结尾的重读闭音节，双写最后一个字母再加-ed stop—stopped 3 辅音+ y结尾，变y为i, 加-ed study-studied 4 直接加-ed go—going 2. 不规则动词的过去式 let → _______ cut → _______ read → _______ feel → _______ keep → _______ sleep → _______ let cut read felt kept slept 以不变应万变 动词中间有俩e， 去掉一个e，后加t lend → _______ build → _______ send → _______ buy → _______ bring → _______ catch → _______ teach → _______ 2. 不规则动词的过去式 lent built 动词字母d变t 变为以-ought或-aught结尾 bought brought sent caught taught 2. 不规则动词的过去式 begin → _______ sing → _______ sit → _______ give → _______ ride → _______ write → _______ grow → _______ draw→ _______ began sang rode wrote sat grew drew gave 中间元音变化 i—a 中间元音变化 i—o 中间元音变化 o/a—e Tang原创英语课件 小红书：Tang 淘宝：Tang原创课件 8 现在完成时 Point 现在完成时用于表示过去发生或已经完成的动作对现在造成的影响或结果；或表示从过去某一时间开始并一直持续到现在的动作或状态。 常与现在完成时连用的时间状语有: for +时间段, since, so far, ever, never, just, before, already, yet, recently , since then, up to now, in the past few years等。 现在完成时的基本句型： Point 肯定句：主语 + have/has + 过去分词 + ... 否定句：主语 + haven’t /hasn’t + 过去分词 + ... 一般疑问句：Have/Has + 主语 + 过去分词 + ... ？ 答语：Yes, 主语 + have/has . / No, 主语 + haven’t /hasn’t. 特殊疑问句：How long + have/has + 主语 + 过去分词？ 答语：直接用since/for引导的短语作答 易错点：不可用When提问持续时间，只能用How long —How long have you been here? —For three months. 过去分词变化规则--1.规则变化 Point 序号 变化规则 举例 1 以e结尾，直接加-d live - lived 2 以辅元辅结尾的重读闭音节，双写最后一个字母再加-ed stop—stopped 3 辅音+ y结尾，变y为i, 加-ed study-studied 4 直接加-ed go—going AAA型 put-put-put cost-cost-cost set-set-set hit-hit-hit ABB型 find-found-found buy-bought-bought stand-stood-stood catch-caught-caught ABC型 take-took-taken fly-flew-flown write-wrote-written break-broke-broken ABA型 become-became-become run-ran-run come-came-come 过去分词变化规则--2.不规则变化 非延续性动词 (瞬间) 延续性动词/短语 (状态) 例句对比 buy have I have had it for 2 weeks. (√) I have bought it for 2 weeks. (×) borrow keep How long can I keep the book? die be dead His dog has been dead for a year. join be in / be a member of He has been in the club since 2019. leave be away (from) She has been away for an hour. begin / start be on The film has been on for 10 mins. arrive/come/ go be in / be at He has been in Beijing for 3 days. 难点辨析：have been / have gone Point 短语 意 思 用 法 have/has gone to 去了某地 (未回) 表示去了某地，现在不在说话现场 have/has been to 去过某地 (已回) 表示曾经去过某地，现在已经回来了。常与 ever, never, twice 等连用。 have/has been in 待在某地（持续) 表示在某地待了多久。 常与 for/since 连用。 现在完成时 vs 一般过去时 Point 一般过去时 (Simple Past) 现在完成时 (Present Perfect) 强调“过去的事实” 动作发生在过去，与现在无关。只陈述过去发生过这件事。 标志词：yesterday,last week, in 1990, just now, when I was young... 强调“对现在的影响” 动作发生在过去，但对现在有影响或结果；或动作延续到现在。 标志词： already, yet, ever, never, just, before, so far, since, for... 注意： 1. 看到 yesterday, ago, last... 铁定选一般过去时。 2. 看到 for / since，优先考虑现在完成时 (注意动词是否延续)。 3. 句中有 just now (刚才) 用过去时；只有 just (刚刚) 常用于完成时。 1. Since last year, our school free breakfasts to students in need. A. offered B. has offered C. was offering 2. Many tourists in Hainan the launch of Tian-zhou-7 on January 17,2024. A. watch B. watched C. are watching D. will watch 3. The mobile phone when I was making a cake with my mother. A. rang B. rings C. is ringing D. is going to ring B B A 4. Alex tea culture since he came to China in 2010. A. studies B. studied C. has studied D. was studying 5. Wang Yaping, the first female (女的) Chinese space walker, her first space walk in November, 2021. A. has begun B. begins C. began C C Great changes 1. (take) place in my hometown over the past ten years. In the past, life here 2. (be) very hard. There 3. (be) few tall buildings, and most people (live) in small,and old houses. Many villagers 5. (have) to walk for hours to get to the nearest town because there were no buses or cars. Now, things are much better. So far, the government 6. (build) four new roads. A new school 7. just 8. (appear) in the center of the town, and buses run every hour. People's lives 9. (improve) a lot, and they are much happier than before. have taken was were lived had has built has appeared have improved Thanks ! $