Welcome Welcome to to our classour class---------- 现在完成现在完成时时RevisionThe Present Perfect Tense 判断下列句子的时态判断下列句子的时态1.She works in a factory.2.I was doing my homework at this time yesterday.3.We are going to have a picnic this Sunday.4.They held a sports meeting last week.5.Are you helping your mother ?一般现在时一般现在时过去进行时一般将来时一般过去时现在进行时现在完成时动词构成： have/has+v 过去分词have breakfastI have just had my breakfast. ( 现在我不饿 )I’m not hungry nowmoved herein 2000I still live hereI have lived here for three years.I have lived here since 2000/three years ago. 现在完成时动词构成 have /has+v 过去分词 助动词否定haven’thasn’t疑问Have you……?Has he……?动词的过去分词形式动词的过去分词形式1. 规则动词2. 不规则动词finish--finished--finishedlive--lived--livedcarry--carried--carriedstop—stopped--stoppedEg.go—went—gonesee---saw—seenforget—forgot--forgottenMake sentencesMake sentencesI \ Hefinish,homeworkI have finished my homework.He hashas finished his homework?haven’tHas heYes,he hasNo ,he hasn’t1. 她成为一名护士已经三年了。2. 我五年前就认识李雷了。3. 那些相片我已经寄给他了。（ post ）4. 我来到这个学校后，他就一直教我。5. 我刚丢了我的历史书。She ____________________ for three years.I ______________ Lilei since five years ago. I _____ already ______ the photos to him.He __________ me since I came to the school.I ______ just_______my history book.know, knew ,knownteach,taught,taught lose,lost,losthas been a nursehave knownhavepostedhas taughthavelostPay attention 注意1. 现在完成时句中常见的时间状语 (1)for+ 一段时间 (2)since+ 过去时间点 (3) since+ 一段时间 +ago（ 4 ） It is (has been ) + 一段时间 + 从句（一般过去时）I have been a teacher ____________.( 一年）He has been at this school ____________( 自从上周以来） We have learned 1,0...
