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,Unit 3 Online Tours,Grammar,I like travelling.,I,went,to Australia 4 years ago.,I,have lived,in Nanjing for 30 years.,Simple past tense,Present perfect tense,Differences?,past,present,4 years ago,Example 1:,Rule1,：,We use,the,simple past tense,to tell what happened,in the past,.,用一般过去时讨论,过去发生,的事情。,When did I go to Australia?,I went to Australia 4 years ago.,I have lived in Nanjing for 30 years.,Example 1:,past,present,Rule2,：,We use the present perfect tense to talk about an action that starts in the past and continues to the present.,用现在完成时谈论一个动作,发生在过去并持续到现在,。,I started to live in NJ,30 years ago,.,I still live in NJ,now,.,for 30 years,I want to take beautiful photos when travelling.,I,bought,a camera last month.,I,have bought,a camera.,It means that I bought a camera and I can use it to take some beautiful photos now.,Rule3,：,We use the present perfect tense to talk about the result of an action.,用现在完成时谈论一个动作所产生的结果或对现在的影响。,Example 2:,Example 3:,I dream of traveling around the world.,I visited Japan in 2010 and 2016.,I have been to Japan,twice,.,past,present,2010,2016,Rule4:We use the present perfect tense to talk about how many times an action has happened till now.,用现在完成时谈论一个动作到目前为止发生的,次数,。,I went to Japan for the first time.,I went to Japan for the second time.,Sum up differences in usage:,用法不同,to tell what happened,in the past,.,强调动作发生,在过去,Simple past tense,1.to talk about an action that starts in the past and continues to the present.,强调动作从过去开始一直,持续到现在,Present perfect tense,2.to talk about the result of an action.,强调动作产生的,影响,3.to talk about how many times an action has happened till now.,强调到目前动作发生的,次数,Simon also likes travelling.,He has already visited many places.,Where did he visit?,I _(visit)the Palace Museum with my grandparents the other day.,I _(climb)Mount Huang last summer.,visited,climbed,Where did Simon visit?,a few days ago,I am happy that I _(learn)to swim.,_ you ever _(try)the famous Tianjin Baozi?,Have tried,have learnt,Where did Simon visit?,He can swim now.,Sum up differences in adverbials of time:,时间状语不同,Simple past tense,Present perfect tense,yesterday morning,last month,two years ago,just now,the other day,in 2007,already,yet,ever,just,recently,so far,till now,up to now,I _(finish/just)my homework.,Millie _(finish)her homework 20 minutes ago.,2.I _(write)an email to my friend yesterday.,Daniel _(write/already)two emails.,have just finished,finished,wrote,has already written,Please make sentences with the correct tenses.,3.I _(be)in Hainan last month.Some of our classmates _(not be)to Hainan yet.,4.I _(live)in Sunshine Town since I was born.,Daniel _(live)in Nanjing in 2007.,was,have not been,have lived,lived,Millie wants to visit Nanjing.,But she has never been there.,She is asking Simon about the city.,Millie wants to visit Nanjing.,Millie:_ (you/be/ever)to Nanjing?,Simon:Yes.I_(be)there three times.,Millie:When _(you/go)there last?,Simon:Last summer.I _(spend)a week there.,Millie:_(you/like)it?,Simon:Oh yes.I _(have)a great time there.I _(visit)many places of interest and _(eat)lots of local food.,Millie:Lucky you!I _(be/never)there.,Have you ever been to,have been,did you go,spent,Do you like,had,visited,ate,have never been,Millie,dreams of,travelling around the world.But she doesnt have a,passport,.,If you were Millie,how would you solve this problem?,Millie had an online tour of the USA.,be buy read return see show,Saturday,15 March,Have you ever dreamt of travelling around the world without a passport?Yes,you can realize your dream by taking an online tour.Yesterday Daniel(1)_ me an online tour of the USA.I(2)_ never _ so many wonderful pictures before.,Last week,I(3)_ a book about the places of interest in the USA.I(4)_ 20 pages already.Its really interesting.My dad(5)_ just _ from the USA,but I(6)_ never_ there.I hope I can visit the USA some day.,showed,have seen,have,bought,have read,has,returned,been,A:Which city have you ever been to?,B:I,A:Who did you go there with?,B:I,A:When did you go there?,B:I,A:What did you do there?,B:I,Talk about your travel experience.,Write down your travel experiences.,Main points:,Which city have you ever been to?,Who did you go there with?,When did you go there?,What did you do there?,Pay attention to using simple past tense and present perfect tense.,The world is big.,The life is short.,Enjoy travelling.,Enjoy your life.,Homework:,Use the simple past tense and the present perfect tense to write about the online tour of New York.,THANK YOU FOR LISTENING,
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