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,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,8B Unit 3 Online toursGrammar,1/21,(1)Have you ever been to Beijing?,(2)When did you go to Beijing?,(3)How many times have you been to Beijing?,(4)Have you ever bought a computer?,(5)When and where did you buy it?,(6)How many times have you used it for an,online tour?,Free Talk,2/21,3/21,与普通过去时使用方法比较,我们用普通过去时谈论发生在过去动作和事情。,我们用现在完成时谈论一个发生在过去而且连续到现在一个动作。,4/21,5/21,与普通过去时使用方法比较,们用普通过去时谈论发生在过去动作和事情。,我们用现在完成时谈论过去发生一个动作对现在造成影响或结果。(动作什么时候发生并不主要，可能是刚才发生，可能是一段时间之前就发生。),6/21,7/21,与普通过去时使用方法比较,我们用普通过去时谈论发生在过去动作和事情。,我们用现在完成时谈论是一个到现在为止已经发生屡次动作。,8/21,We often use these time expressions with the simple past tense：yesterday，the other day，last，ago，just now,We often use these time expressions with the present perfect tense:already,ever,just,recently，yet，so far，up to now，till now，for，since，in the last/past ten years.,9/21,与普通过去时使用方法比较,常与普通过去时连用经典表示过去时间状语,（详细）,yesterday(昨天),the other day(前两天),just now(刚才)，时间+ago,last+时间 等;,常与现在完成时连用经典时间状语（含糊）:,already,just,ever,never,yet,recently,over,before,since,for,10/21,Differences between the two,A,Simon is showing Millie some pictures.Complete his sentences with the correct forms of the given verb.,1 I _(visit)the Palace Museum with my grandparents the other day.,visited,11/21,Differences between the two,A,Simon is showing Millie some pictures.Complete his sentences with the correct forms of the given verb.,2 I _(climb)Mount Huang last Summer.,climbed,12/21,Differences between the two,A,Simon is showing Millie some pictures.Complete his sentences with the correct forms of the given verb.,3 _ you ever _(try)the famous Tianjing Baozi?,Have tried,13/21,Differences between the two,A,Simon is showing Millie some pictures.Complete his sentences with the correct forms of the given verb.,4 I am happy that I _(learn)to swim.,have learnt,14/21,B,Mr Wu is asking the students to make sentences with the correct tenses.Help them to complete the sentences with the correct forms of the words in the brackets.,2 I _(write)an email to my friend,yesterday.,Daniel _(write/already),two emails.,1 I _(finish/just)my homework.,Millie _(finish)her homework 20,minutes ago.,have just finished,has already written,wrote,finished,15/21,B,Mr Wu is asking the students to make sentences with the correct tenses.Help them to complete the sentences with the correct forms of the words in the brackets.,3 I _(be)in Hainan last month.,Some of our classmates _(not,be)yet.,4 I _(live)in Sunshine Town since,I was born.,Daniel _(live)in Nanjing in.,was,have not been,have lived,lived,16/21,showed,have,seen,bought,have read,has returned,have,been,17/21,1.He _(know)the city,since,he was very young.,2._ you _(see)my watch?Yes,I _(see)it on your desk,five minutes ago,.,3.,Last night,it _(rain)heavily.,4.-,When,_ you _(finish)your work?,-Half an hour ago.,时态填空,has known,Have,seen,saw,rained,did,finish,18/21,Have you ever been,have been,did you go,spent,Did you like,had,visited,ate,have never been,19/21,Work in pairs,Use Part C as a modelTalk about the places of interest youve visited beforePay attention to the tenses,20/21,Homework:,1记忆词汇和词组。,2复习本课所学内容，学会区分普通过去时和现在完成时。,3完成课课练作业。,4预习Integrated skills。,21/21,
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