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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,*,Unit1 Past and present,Learning aims:,1.Master the structure and basic usage of present perfect tense(PPT).,掌握现在完成时的用法、基本结构。,2.Master some time expressions usually used in present perfect tense(,PPT).,掌握常用在现在完成时里的时间表达方式。,3.Master the rules of forming the past participle of verbs.,掌握动词的过去分词变化规则。,Answer some questions about the conversation between Mr Chen and Millie.,Revision,Model 1:,Has,Sunshine Town,changed,a lot?,Yes,it has.,Model 2:,Have,Mr Chen and his wife,moved,out of the town?,No,they havent.,Have,you changed the sentences into English?,1.,“,我想好好学习，考个好大学，虽然学习不是唯一的出路，,但在当下来说是最好的出路。,”,Yang Xiuhua,杨秀花,2.她说：“六月就要高考了，我不能放松，一定要考出好成绩。”,I want to study hard and get into a good university,although study is not the only way out.,But its the best way out right now.,The College Entrance Examination is coming in June,she said.I cant relax.I,must,get good grades.,Huang Yuting,黄玉婷,现在完成时的概念,P133,1.,我们用,现在完成时,表示从过去,持续到现在的,动作或状态,或已完成但,对现在有一定影响的,动作,。,2.,现在完成时常和,already,、,ever,、,just,、,never,、,recently,、,yet,等 副词以及,since,、,for,引导的时间状语连用。,现在完成时的用法,(,一,),I,have been,a teacher,since,2002.,I was a teacher,in 2002.,I am still a teacher,.,Now,Past,Future,1.,现在完成时,表示从过去,持续到现在,的动作或状态,。,I,have been,a teacher,for,18,years.,in 2002,现在完成时的用法,(,二,),2.,表示过去发生的动作对现在造成的,影响或结果,。,I wrote some words,on the Bb yesterday.,The words are on the Bb,Now,Past,I have written some words on the blackboard.,3.表示某事直到现在发生了多少次。,现在完成时用法,(,三,),I,have watched,the TV show,many times.,现在完成时的用法归纳,3.表示某事直到现在,发生了多少次,。,1.,现在完成时,表示从过去,持续到现在的,动作或状态,。,2.,过去发生的动作对现在造成的,影响或结果,。,I have written some words on the Bb,already.,现在完成时结构：,I have been a teacher,since I left my college,(,大学,),.,Think about:,What new structure can you find in these sentences?,I have been a teacher,for 12 years,.,I have watched,the TV show,many times,.,done,过去分词,have/has,+,2.,现在完成时常和,already,、,ever,、,just,、,never,、,recently,、,yet,等 副词以及,since,、,for,引导的时间状语连用。,since,和,for:,1)Eddie,has lived,with Millie,since 2001,.,Eddie,has lived,with Millie,since 4 years ago.,Eddie,has lived,with Millie,since he was born.,2),Eddie,has lived,with Millie,for four years,.,for+,时间段,for a year,for two weeks,for three years.,3),对以上句子划线部分提问,:,How long,has Eddie lived with Millie?,Since+,_,since last week,since 2008,_,since 9 years ago,since 3 days ago,_,：,since you came,since he moved here,since I was born,时间点,（,过去的某一时刻）,一段时间,+ago,从句,（一般过去时态的时间状语从句,）,Let,s,try,!,用,since,或,for,填空：,1.I have been at this school _,more than two years,.,2.She has worked in the factory _,ten years ago,.,3.Mr.Green has lived in the city _,he was born,.,4.His father has been a party member _,twenty,years,.,5.She has learned English _,1999,.,for,for,since,since,since,现在完成时,1.,我们用,现在完成时,谈论一个,从过去开始,并且一直,延续到现在,的动作。,Qs:1.,自从,.,以来,+,？,2.,主句用什么时态？,刚才,2.,我们用,现在完成时,谈论发生在过去并,和现在有联系,的动作。,I,have lived,here,for 14,years,.,P12,since+,时间状语从句,现在完成时,I,lived,here 14 years ago.,eat-ate-,？,eaten,just,刚才，用现在完成时,just now,刚刚（用一般过去时）,3.,我们也用现在完成时谈论到现在为止一个,动作发生了多少次,。,read-read-read,/red/,already,已经，,肯定句中,yet,还，尚、迄今,，否定,/,疑问句中,已经,曾经,从不,刚才,近来,自从以来,+,时间段,还、尚、迄今,我们可以把这些时间表达用于现在完成时。,几次,1.He has _ visited many places in China.,2.The train hasnt arrived _.,3.Has she arrived _?,4.Hasnt he come back_?,上一页,下一页,Tips,already,是“已经”之意，用在,_,中。,yet,用在,_,中，在否定句中有“还”之意。,already,yet,yet,yet,肯定句,疑问句和否定句,1.,我们像这样在现在完成时中作肯定陈述：,肯定句,:,主语,+have/has+done.,如何变否定句？,只需要在,_,后 加上,_,即可。,2.,我们像这样在现在完成时中作否定陈述：,否定句,:,主语,+havent/hasnt+done.,have not=havent,has not=hasnt,have,或,has,not,Work out the rule,如何变一般疑问句？,只需把,_,提到,_,其余,_,即可。,注意，第,_,人称变第,_,人称。,3.,我们像这样用现在完成时提问和回答问题：,肯定回答,否定回答,一般疑问句,:,非三单：,Have+,主语,+done,？,主三单：,Has+,主语（三单）,+done,？,Yes,主语,+have.,/No,主语,+havent.,Yes,主,语,+have/has.,/No,主+havent/hasnt.,只需把,_,提到,_,其余,_,即可。,注意，第,_,人称变第,_,人称。,have,或,has,句首,照抄,一,二,A:,_they _ homework yet?,B:,Yes,they _./No,they _.,Lets practise,They have already done homework.,have,havent,done,Have,Has,A:,_ he stopped a taxi yet?,B:,Yes,he _./No,he _.,Lets practise,has,hasnt,我们通过加,-ed,来形成规则动词的过去分词，,就像我们把动词变成它的过去式一样。,1.,大部分动词,+ed,2.,以,e,结尾的动词,+d,3.,以辅音结尾,+y,的动词要把,y,改为,i,ed,4.,以元音,+,辅音结尾的简短动词,双写,辅音再,+ed,不同的不规则动词的过去分词的形成是不同的。这里有一些例子。,无变化,改变元音,改变辅音,改变元音和辅音,其他的,原形,过去分词,规则动词,不规则动词,原形,过去分词,The table below shows more examples of the past participles of verbs.,visit,repair,live,move,try,study,fit,plan,visit,ed,repair,ed,live,d,move,d,tr,ied,stud,ied,fit,ted,plan,ned,Base form Past participle,Base form Past participle,hit,put,meet,make,sell,give,write,think,hit,put,m,e,t,ma,d,e,s,o,ld,give,n,wr,itten,th,ought,大声朗读以下单词的原形和过去分词,A short test,Mr Wu wants the students to practise using the present perfect tense.Help them write the past participles of the verbs below.,borrow plan say,hope cry grow,make send hit,get watch enjoy,borrowed,hoped,made,got,/gotten,planned,cried,sent,watched,said,grown,hit,enjoyed,have finished,has visited,has repaired,havent seen,havent come,has taught,用现在完成时的正确形式填空并圈出相应的时间状语。,已经（用于肯定句中）,已经（用于否定和疑问句中）,从不,since+,时间点（自从）,for+,时间段,Have,seen,adv.,近来,（用于现在完成时）,He has me
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