(
课件网) Let’s enjoy Have you ever heard of this song Simple past tense (一般过去时) Present perfect tense （现在完成时） Unit 3 The world at one click Grammar Learning aims 1.To review the uses of simple past tense. 2. To review the uses of present perfect tense. 3. To tell the differences between the simple past tense and the present perfect tense. 4.To be able to make up some sentences using the simple past tense and the present perfect tense. 一般 过去时 构成 用法 常用 时间状语 动词的过去式 1. 表示过去某个时 间发生的动作或 存在的状态。 2. 表示过去经常或 反复发生的动作。 yesterday last night in 1990 two days ago … 一般过去时 现在完成时 构成 用法 常用 时间状语 have/has +过去分词 1. 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。 2. 表示从过去某一时间开始一直持续到现在的动作或状态。 already ,yet,just,neverbefore,recently,over the years,in the past few years 现在完成时 Tense Structure (结构） the simple past tense the present perfect tense S + V过去式 + … S + didn’t + V原+ … S + wasn’t / weren’t+ V原+ … Was/ Were + S + … Yes,…was/ were. No, … wasn’t/ weren’t. Did + S + V原 + … Yes,…did. No, … didn’t. S + have/has + V过去分词 + … S + haven’t/hasn’t + V过去分词 + … Have/ Has + S + V过去分词 + … Yes,…have/ has. No, … haven’t/ hasn’t. We moved into a small flat when we arrived. We’ve lived in a small flat since we arrived. Tense The time expressions (时间状语) the simple past tense the present perfect tense yesterday / last… / in + 表过去的年月 / two days ago / just now / last / the next day等 already, yet, ever, never, recently, just, before, for + … / since + … these years, so far, up to/till now, in/during/over the past/last few/three years once, twice, several times等 I _____ (visit) the Palace Museum with my grandparents the other day. I _____ (climb) Mount Huang last summer. visited climbed Complete the sentences with the correct forms of the words in brackets. I am happy that I _____ (learn) to swim. _____ you ever _____ (try) the famous Tianjin Baozi Have tried have learnt You can either travel or read ,and either your body or soul must be on the way. (要么旅行，要么读书，身体和灵魂，必须有一个在路上) Which do you like better, take online tours or travel for yourself Why Further thinking Travelling can broaden our horizons(开阔视野，增长见识) Have tried have seen visited have played has visited has learned/learnt 1.learn learned/learnt用法 学习做某事： 学习怎么做某事： 向某人学习： 自学某事： 词组 学习游泳/拉小提琴： 学习怎么下棋： 互相学习： 自学一门外语： learn to do learn how to do sth learn from sb learn sth by oneself=teach oneself sth learn how to play chess learn to swim/learn to play the violin learn from each other learn a foreign language by oneself =teach oneself a foreign language Exercise 请认真阅读下面短文，填入一个适当的单词或括号内单词的正确形式。 Nowadays,"the world at one click" is not just a phrase-it's a real way totravel. Many peopl ... ...
