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课件网) Unit 1 Past and present Grammar Free talk What do you know about Mr Chen and Sunshine Town Mr Chen has lived in Sunshine Town since he was born. Mr Chen has moved to a new neighbourhood. He and his wife have lived in this area since 1965. The town has changed a lot over the years. The government has turned part of the town centre into a new park. … We call them the present perfect tense A story about Eddie! past present Eddie was born four years ago. 我们用一般过去时谈论在过去某一时间里所发生的动作或存在的状态. four years ago 1.We use the present perfect tense to talk about things that started in the past and continues to the present.我们用现在完成时表示从过去持续到现在的动作或状态。 present past past present 4 years Eddie has lived with Millie since he was born. Eddie has lived with Millie for four years. 2.We use the present perfect tense to talk about an actionthat happened in the past and has a connection with the present. 我们用现在完成时表示已完成但对现在有一定影响的动作。 present past Today, Hobo said to Millie."Eddie has eaten my food." (Eddie ate the food and now Hobo has nothing to eat.） 3.We also use the present perfect tense to talk about how many times an action has happened till now.我们用现在完成时谈论到现在为止一个动作已经发生了多少次。 past present Eddie 吃了很多次Hobo 的食物。 Eddie has eaten Hobo's food many times. She's been married three times. There have been many buildings in my town. I can’t get in the house. I’ve lost my keys. She has lived in Liverpool all her life. How clean! Who has cleaned the room We have seen the film twice. Match the reasons for using the present perfect tense on the right with the sentences. started in the past and continues to the present happened in the past and has a connection with the present. talk about how many times an action has happened till now The structure of present oerfect tense （1）肯定句： I/We/You/They + have + p.p（过去分词）+其它. He/She/It + has + p.p（过去分词）+其它. Practice: 1. 他们已经完成家庭作业了。 They _____ (finish) their homework. 2. 他已经完成家庭作业了。 He _____ (finish) his homework. have finished has finished （2）否定句： e.g. Mr Chen _____ to any other city yet. ( not move） The snow _____ yet. ( not melt融化） hasn’t moved I/We/You/They+have not / haven’t +p.p(过去分词）+其它。 He/She/It +has not / hasn’t +p.p(过去分词）+其它。 hasn’t melted （2）否定句： I/We/You/They + have not/haven’t + p.p +其它. He/She/It + has not/hasn’t + p.p +其它. Practice: 1. They _____ (not finish) their homework yet(还未). 2. He _____ (not finish) his homework yet. have not/haven’t finished has not/hasn’t finished （3）一般疑问句及回答： Have/Has +主语+ p.p. +其他 Have I/you/we/they arrived Has he/she/it Yes, I/you/we/they have. he/she/it has. No, I/you/we/they haven’t. he/she/it hasn’t. read the book read the book A: Has she … B: Yes, she has. / No, she hasn’t. Let’s practise brush your teeth brus ... ...
