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课件网) Under the Sea Unit 5 Lesson 1 Warm Up Have you been under the sea for It’s been here for about three hours. since The rescue people have been here since ten o’clock. Read and Remember still We still haven’t chosen a project. Read and Complete I _____ haven’t eaten dinner yet. I’ve been studying English ____ one month now. I’ve lived in the city _____ I was five years old. since since for still still for 语法透视 考点大观 易错辨析 通关训练 现在完成时定义 现在完成时定义三要素： 1. 表示到现在为止已经完成或刚刚完成的动作。 2.一件发生在过去的事情对现在产生影响。 3.一个动作开始于过去，并持续到现在（也许还将持续下去）。 We have known each other since 2005. 我们从2005年认识的。 I have lived in Wuhan for several years. 我在武汉住了好几年了。 现在完成时结构 语法透视 考点大观 易错辨析 通关训练 肯定句：主语 + have/ has + 过去分词+... 否定句:主语+haven’t ( have not) +过去分词… 主语+hasn’t ( has not ) +过去分词... 疑问句:Have / Has+主语+过去分词... I haven’t finished my homework. 我还没有完成作业。 Have you finished your homework 你完成作业了没？ I have finished my homework. 我已经完成作业了。 现在完成时的用法 语法透视 考点大观 易错辨析 通关训练 1) 表示到现在为止已经完成或刚刚完成的动作。 Now we have planted all the trees. 截止目前，我们种完了所有的树。 He has just come back. 他已经回来了。 They have built many buildings in this city. 他们在这个城市建成了好多建筑物。 现在完成时的用法 语法透视 考点大观 易错辨析 通关训练 2) 表示过去发生的动作,强调结果或对现在的影响。 Someone has broken the window. I have already lost the key. I haven’t read that book yet . I have just cleaned my hands. (窗户现在是坏的) (我现在没有钥匙) (不了解书的内容) (手是干净的) 现在完成时的用法 语法透视 考点大观 易错辨析 通关训练 3) 表示从过去开始并持续到现在的动作或状态。 She has learned English for 5 years. 她学英语已经五年了。 He has lived in Beijing since he was born . 从他出生那天起就住在北京。 Has he lived in Shenzhen for 4 years 他住在深圳四年了吗？ 语法透视 考点大观 易错辨析 通关训练 现在完成时的标志词2 since: (自…以来) 1)since+时间点 He has stayed here since 5 o’clock. 2)since+ 时间段+ ago He has stayed here since 5 hours ago. 3)since+ 从句 She has taught English since he came here. for: (长达）for+ 时间段 He has kept the book for 2 weeks. 语法透视 Next 考点大观 易错辨析 通关训练 Mr. Brown has had his TV _____ 15 years. I’ve taken driving lessons _____last month. My sister has had her cell phone _____a month . My friends haven’t visited me _____my birthday. We haven’t used our car _____ a long time . She hasn’t had a good cup of coffee _____years. Tom has worn glasses _____he was 7 years old. for since for since for for since 用for 或since填空 Listen and tick the sea words you hear. Listening text. SHARI: Have you thought of anything for our ezine this month DAN: No, nothing. ALVIN: We've talked about ideas for three days and we still haven't chosen a project. DAN: Let's not talk about that now. Let's ... ...
