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1、花园中学花园中学 英语组英语组孙玉霞现在完成时态复习现在完成时态复习The Present Perfect Tense(Revision)I taught English in Huayuan Middle School in 2005.I have taught English in Huayuan Middle School for seven years. I have taught English in Huayuan Middle School since 2005.What does it mean now ?现在什么意思现在什么意思?The learning aims:1.理解现
2、在完成时态的定义，掌握其句理解现在完成时态的定义，掌握其句型结构，否定句、疑问句及其标志词。型结构，否定句、疑问句及其标志词。2.掌握重点句型掌握重点句型,have/has been to have/has gone to have/has been in/at3.突破难点突破难点:短暂性动词与延续性动词短暂性动词与延续性动词 的转换的转换.now表示动作表示动作发生在过去发生在过去，对现在的影响或结果对现在的影响或结果,或或 动作持续的状态，且可动作持续的状态，且可能继续下去。能继续下去。It took place in the past ,but it influences now or
3、it will last in the future.下面请同学们归纳出现在完成时的基本结构：1、肯定句：2、否定句：3、一般疑问句：主语（主语（I/we/you） +have 主语（主语（they） +have +过去分词过去分词主语（主语（It/ he/ she） +has 主语主语+have/has+not+过去分词过去分词+Have/Has +主语主语+ 过去分词过去分词+?Yes，主语，主语+have/has； No， 主语主语+havent/hasntInduction the present perfect tense structureDefinitely sentenceNe
4、gative sentenceGenerally interrogative sentence过去分词的构成（规则变化）1.+ed work, plant,call2.e+d live, change, like,love,agree,save hate, move,arrive, skate,hope, use3.以重读闭音节结尾，末尾只有一个辅音字母的以重读闭音节结尾，末尾只有一个辅音字母的 双写双写ed. plan, stop,drop,fit(适合适合), prefer(更喜欢更喜欢), travel。以。以辅音字母辅音字母y，结尾结尾，变，变y为为ied try, study, ca
5、rry, hurry, cry,Past participle constitution(Rule change)不规则变化不规则变化 Anomalous change 试一试试一试：v1.A: Do you want a pen ?v B: No, I dont . I _ already _ (buy) one .v2. _ you ever _(be) to Paris?v3.A:Where is your mother ?v B: She _ (go) to Beijing . v4. I _(be) at the school for three years.v5. He_ ( no
6、t finish) the homework yet.v6.Li Lei _ just _ (give) the cakes to Polly.v7.They_(not hear) from each other since 1995.v8. It _ (be) three years since I came to this school. havebeenHaveboughthas gonehave beenhasnt finishedhasgivenhavent heardhas been/is= Three years has passed since I came to this s
7、chool.Similarly meaning sentences(同义句）同义句）Have a trySymbolizes the wordThree sentence patternsDiscuss in groupsalready, yet, ever, never, just, before, once, twice，these days, this year, so far.for +时间段，since+时间点/从句，in the last/past ten years and so on易混点 考点 A BAA B stay B 1.A: Wheres Jim, Li Lei? B
8、: He _ the school library. 2.The Greens _China for three years. We _the Great Wall twice. Its very beautiful.has gone tohave been inhave been toPracticeTom four years ago.现在完成时与一般过去时区别现在完成时与一般过去时区别Tom for four years.Tom since he was born.nownownowwas bornhas livedhas lived He _(work) in our school f
9、or one year. He _(come) to our school last year/in 2002. They _(cook) the supper already. They _ (cook) the supper half an hour ago.Usage 1， 表示过去发生的某一动作对现在造成的影响或结果,常与一些时间状语,如:already, yet, ever, never, just, before, once, twice，these days, this year, so far等连用。 The perfect tense has two usages, do y
10、ou know? Usage 2， 表示过去发生的动作或存在的状态，一直持续到现在，也许还将继续下去，可以和表示从过去某一时刻延续到现在的一段时间的状语连用，标志性时间短语for +时间段，since+时间点/从句(一般过去时)，in the past ten years等，谓语只可谓语只可用延续性动词。用延续性动词。(Continuous verb)易错点易错点 考点考点常见非延续性动词与延续性动词之间的转换：常见非延续性动词与延续性动词之间的转换：1. open - 2. die -3. start/begin- 4. finish -5. get up - 6. become-7. jo
11、in- 8. leave-9. fall ill/asleep- 10. arrive-11. borrow- 12. buy-be openbe in/atbe onhavekeepbe upbe ill/asleepbe inbe awaybebe overbe deadContinuous verb and non-continuous verb transformation 请你来找茬儿：(1.The film has begun for five minutes.2.His mother has died since two years ago.3.I have bought the
12、 computer for a long time.4.Helen has joined the Youth League since 2000.5.How long have you fallen ill? been onbeen deadhadbeen inbeen illCorrect the mistakes)Make a dialogue A: Hi dear, Im home.B: Hi, Mum. _A:_. I have bought many beautiful flowers. _?B: _.A: Good, and?B: _A: Oh, its bad for your
13、teeth.A. I have eaten up all the chocolates. B. I have been to the flower market.C. Ive have finished my homework.D. Where have you been?E. Tell me what you have done today?DBECA当堂训练当堂训练中考直通车中考直通车Tests the direct bus Are you happy now?What have you learnt this class?Sum up Homework完成现在完成时态的练习题完成现在完成时态的练习题Thank you for listening!