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1、现在完成时定义一般过去时表示过去某个时间里发生的动作或状态一般过去时时间状语yesterday last night/month/yeartwo thousand years agoin the pastjust nowin 1989at the age of 5.He has finished his homework, so he can play video games now. 现在完成时01现在完成时的结构现在完成时done主语+ have/has done(过去分词)+ 其他.助动词,无意义 He has finished his homework, so he can play
2、video games now. have/has主语其他.现在完成时结构:have/has(助动词) He has finished his homework. 否定 He hasnt finished his homework. 疑问 Has he finished his homework?回答 Yes, he has. No,he hasnt.过去分词(done)1.规则变化: work 过去式: 过去分词: workedworked 2.不规则变化:hit-hit-hit AAAput let cut buy-bought-boughtABBcome-came-comeABAABCs
3、peak-spoke-spoken sell tell saybecome runbreak steal02现在完成时的用法现在完成时特点 I _ (watch) the movie last week. I _ (watch) the movie twice.watchedhave watched-次数nownowlast week一般过去时现在完成时现在完成时特点 现在完成时表示一个动作从过去_重复_一般过去时只描述某个动作在过去_-次数 I _ (watch) the movie twice last year. watched到现在几次发生过现在完成时特点 She _(teach) E
4、nglish 5 years ago, but now she is a barber.She _(teach) English for 5 years, and she will keep teaching it for the rest of her life.taughthas taught-延续一般过去时现在完成时nownowteach English5 years agoteach Englishbarber现在完成时特点 现在完成时表示动作在过去开始,持续_,也许还要_一般过去时表示动作在过去_-延续-Has he returned to China from Paris?-Yes
5、, he _(stay)in Paris for three years.stayed到现在持续下去已经结束现在完成时特点 They _ (wash) the floor just now. They _ (wash) the floor, so it is still wet.washedhave washed-影响一般过去时现在完成时nownowjust nowwash?washwet现在完成时表示发生在过去的的动作对_仍有_一般过去时表示对现在有无影响_现在影响不确定现在完成时用法小结 次数 延续影响 现在完成时 一般过去时过去发生的动作,对现在仍有影响过去发生的动作,对现在的影响不明确
6、一个动作从过去到现在发生几次强调某动作在过去发生过一个动作,从过去开始持续到现在,甚至可能持续到将来动作在过去已经结束have/has+done03延续性动词延续The door has been open for two hours.The door has opened for two hours.现在完成时的用法:影响延续次数8 hours20 minutessleepeatopenbuy瞬间瞬间延续性动词:动作可以一直延续下去,如 sleep, eat瞬间性动词:动作在瞬间就结束, 如 open, buyopenbe open开(动作)开着的(状态)A. The door has op
7、ened for two hours.B. The door has been open for two hours. 瞬间性延续性瞬间性动词延续性动词1. be + adj.openclosediemarrybe marriedbe deadbe closedbe open他已经去世了。_他已经去世两年了。_He has already died.He has been dead for two years.瞬间性动词延续性动词2. be + adv.leaveend/finishbegin/startbe onbe overbe away (from)他已经离开苏州了。_他已经离开苏州两年
8、了。_He has left Suzhou.He has been away from Suzhou for two years.瞬间性动词延续性动词3. 转换成与其意义相近的词 joinget/catch a coldbuyborrowbecomebe in/be a member ofhavekeephave a coldbe他已经买了这本书两年了。_He has had this book for two years.非延续性动词延续性动词buyhaveborrowget/catch a coldleave be away (from)closebeginbe onkeephave a
9、coldbe closed 变成具有相应意思的词be 形容词/副词04现在完成时标志词现在完成时标志词I have lived in Suzhou for two years. since two years ago. since 2019. since I was 20 years old.since时间点for一段时间since句子(一般过去时)I _ (stay) in Beijing for two weeks last winter holiday. stayed(for也可用于过去时)1. Mr. Brown has had his TV _ 5 years.2. My frien
10、ds havent visited me _ few days ago.3. Tom has wore glasses _ he was 8 years old.练一练forsincesincesince VS for现在完成时标志词already/yetI have already been there twice. / I have been there twice already.I havent finished reading the book yet.Have the children come back home yet?already yet 肯定句否定句或疑问句句中或句尾句尾
11、现在完成时标志词just / just nowHe left here just now.I have just finished my homework.just now just刚刚刚刚常用于一般过去时常用于现在完成时现在完成时标志词迄今为止: 最近: 在过去.期间:so far / up to now / until / till now /by nowrecently/ in the recent years/ in the recent daysover/ in/ during the past years05现在完成时易混易错现在完成时-易混词组辨析have been inhave
12、 gone tohave been to-Where is Jack?- He _ Shanghai.He _ Shanghai for two days. -Have you been to Shanghai?-I _ Shanghai twice. 去了已回 去了未回表示在某地待了多久,常与时间段状语连用去了未回has gone tohas been inhave been to(常与次数连用)06现在完成时句型现在完成时句型自从我们上次见面已经2个月了。It _ 2 months since _ . 1. It is/has been + 时间段 + since从句(一般过去时)has
13、been/iswe last met翻译:自从她离开苏州已经五天了。It is/has been 5 days since she left Suzhou.2. 主语+ 谓语+ the +序数词 +time+ (that)+ 现在完成时 It is _time that I _.have come to Suzhou 这是我第一次来到苏州。 the first3. 主+谓+ the +最高级 + (that) + 现在完成时 这是我曾经看过的最漂亮的女孩。_girl that_.This is the most beautifulI have ever seen07总结练习现在完成时二、用法四、标志词一、结构五、易混词组辨析三、延续性
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