牛津译林八年级下Unit1Grammar课件.ppt
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1、The Present Perfect Tense现在完成时现在完成时8下Unit 1 Grammar1. How long has Mr. Chen lived in Sunshine Town?2. Can Mr. Chen see his old friends as often as before?He has lived here since he was born.No. Because most of his old friends have moved away.Lead-in Ask and answer have/has + done(动词过去分词) past presen
2、t Eddie was born four years ago.我们用一般过去时谈论在过去某一时间里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所发生的动作或存在的状态.Step 1:现在完成时用法现在完成时用法four years ago我们用现在完成时表示从过去持续到现在的我们用现在完成时表示从过去持续到现在的动作或状态。动作或状态。 presentpastpastpresent4 years Eddie has lived with Millie since he was born.Eddie has lived with Millie for four years.我们
3、用现在完成时表示已完成但对现在有一定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影响的动作。presentpastToday, Hobo said to Millie.Eddie has eaten my food. (Eddie ate the food and now Hobo has nothing to eat.)我们用现在完成时谈论到现在为止一个动作已经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发生了多少次。pastpresentEddie 吃了很多次吃了很多次Hobo 的食物。的食物。Eddie has eaten Hobos food many times. W
4、e _ (live)in Xuyi since we were born. for 14 years. have livedStep 2:现在完成时的构成现在完成时的构成 We _(study) here since 2014. for 2 years. have studiedThe Present Perfect Tense (现在完成时态现在完成时态)基本结构基本结构:助动词助动词have/has +动词的动词的过去分词过去分词I have watched the TV show many times. Have you watched the TV show many times? Y
5、es, I have.No, I havent. He/She hasnt watched the TV show many times. 一般疑问句一般疑问句否定句否定句The Present Perfect Tense (现在完成时现在完成时)一般疑问式一般疑问式: 将将 have/has提前到句首提前到句首 回答回答:肯定:肯定:否定:否定:Yes, have/has.No, havent/hasnt.The Present Perfect Tense (现在完成时现在完成时) 否定式否定式: have/has not +动词的动词的过去分词过去分词 havent /hasntTask
6、one (仿照例句看表格造句)仿照例句看表格造句)Whohave donehavent doneWeclean the roomclean the windowsee a film make dinnerTheyShefly to Beijingvisit the Great WallMy father1. We _ the room but we _ the window.2. _ you _ the room? Yes, _. _ you _ the window? No, _.have cleanedhavent cleanedHave cleanedwe haveHave we hav
7、entcleanedbuy foodwatch Beijing Operamovelivelovelike动词的过去式和过去分词的构成动词的过去式和过去分词的构成:visitrepairwatchfinishvisited visited repaired repairedwatched watchedfinished finishedmoved moved lived lived loved loved liked liked verbed以不发音的以不发音的e结尾结尾dStep 3:过去分词的构成过去分词的构成stopmoptrapplanstopped stopped mopped mo
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