(
课件网) （人教新目标版）八下英语 Period 3 Section A 4a-4c Unit 10 I've had this bike for three years. Learning objectives Teaching aims（教学目标） 1．学会谈论财产和周围的事物 2. 能够熟练的运用现在完成时态 3. 能区分运用现在完成时与一般过去时 Language points（语言点） 要求掌握以下句式： How long has it been there It has been there for …/since …/as long as … 要求掌握以下单词 动词： have, own, serve, move 名词： gun, sand, hometown 词组：be back to, one of, be away, be full of, run around, hundreds of gun n. 枪；炮 sand n. 沙滩；沙 a toy gun 玩具枪 New words hometown n. 家乡；故乡 New words past I read Little Woman. I decide to write about it for English class. I have already finished reading Little Woman. 1. We use the present perfect tense to talk about an action that happened in the past and has a connection with the present. 表示在以前某个时间已经发生的行为或曾经做过的事情对目前有某种 影响。 present present perfect 现在完成时的用法一 Lead in past I read The Old Man and the Sea for the first time. I'm not tired of it. Even though I've already read The Old Man and the Sea three times, I'm not tired of it yet. present present perfect I read The Old Man and the Sea for the second time. 2. We also use the present perfect tense to talk about how many times an action has happened till now. 表示一个动作到现在已经发生了多少次。 I read The Old Man and the Sea for the third time. 现在完成时的用法二 Lead in 3. We use the present perfect tense to talk about an action that started in the past and continues to the present (or may continue to the future). 表示过去发生的动作一直延续到现在（可能持续到将来）。 past present future He bought this bike three years ago. I have this bike. I've had this bike for three years. present perfect 现在完成时的用法三 Lead in Present perfect tense with since and for Presentation ① I have owned this bike _____. ② I have had this bike _____. present future past have this bike three years ago Complete the sentences according to the picture. for three years since three years ago for+段时间 since+点时间 Presentation 5:30 five years three minutes 2023 May 5 two months 点时间 点时间 段时间 点时间 段时间 段时间 点时间指的是具体的时间，比如1点、4月7日、2024年12月；段时间指的是一段时间内，比如说一点到三点，中间这两个小时就是一段时间。 试着说说哪些是点时间，哪些是段时间吧！ Presentation since和for加时间的用法： since: 自……以来 ① He has owned a train and railway set since his fourth birthday. ② Judy has stayed here since 5 hours ago. ③ I've had the bear since I was baby. since+从句 (从句常用一般过去时) since+过去的点时间 since+段时间+ago for: 长达 Amy has had her favorite book for three years. for+段时间 Presentation 1. How long have you played football 2. How long have you been like this 3. How long have you had the dog 在对现在完成时的时间状语进行提问时，我们常用_____。 这些动词都是延续性动词。 你踢足球踢了多长时间了？ 你这个样子有多久了？ 这条狗你养了多久了？ how long 观 ... ...
