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1、关于现在完成时讲解完整版第1页，此课件共17页哦present(now)futurepast Present Perfect Tense 现在完成时现在完成时第2页，此课件共17页哦主语主语+have/has+过去分词（过去分词（pp）助动词助动词,无意义无意义 现在完成时的结构现在完成时的结构Winter has already come，will it still be far in spring?第3页，此课件共17页哦主语主语+have/has+过去分词（过去分词（pp）否定形式否定形式 havent(have not）+过去分词过去分词 hasnt(has not)+过去分词过去分词
2、疑问句疑问句 把助动词把助动词 have/has 放在句首放在句首 现在完成时的结构现在完成时的结构注：主语若是第三人称单数助动词用注：主语若是第三人称单数助动词用 has第4页，此课件共17页哦You have planted all the trees.I have planted all the trees.He/she has planted all the trees.They have planted all the trees.区别区别have 和和 has的用法的用法 主语若是第三人称单数助动词用主语若是第三人称单数助动词用 has第5页，此课件共17页哦1)表示到现在为止已经
3、完成或刚刚完成的动作。表示到现在为止已经完成或刚刚完成的动作。Now we have planted all the trees.He has just come back.They have built many buildings in this city.现在完成时的现在完成时的用法用法第6页，此课件共17页哦2)表示过去发生的动作表示过去发生的动作,强调结果或对现在的影响。强调结果或对现在的影响。Someone has broken the window.(窗户现在是坏的窗户现在是坏的)I have already lost the key.(我现在没有钥匙我现在没有钥匙)I have
4、nt read that book yet.(不了解书的内容不了解书的内容)I have just cleaned my hands.(手是干净的手是干净的)常与常与already(已经已经),yet(已经已经),just(刚刚刚刚),ever(曾经曾经)等词连等词连用用.already:常用于肯定句中常用于肯定句中.yet:常用于否定句常用于否定句,疑问句尾疑问句尾.第7页，此课件共17页哦3)表示从过去开始并持续到现在的动作或状态，常与包括现表示从过去开始并持续到现在的动作或状态，常与包括现在在内的一段时间的状语连用。在在内的一段时间的状语连用。She has learned Englis
5、h for 5 years.He has lived in Beijing since 5 years ago.第8页，此课件共17页哦since:(自自以来以来)1)since+时间点时间点He has stayed here since 5 oclock.2)since+时间段时间段+agoHe has stayed here since 5 hours ago.3)since+从句从句She has taught English since he came here.for:(长达）长达）for+时间段时间段He has kept the book for 2 weeks.since,f
6、or 的用法的用法:Take notes 第9页，此课件共17页哦用for 或since填空Mr.Brown has had his TV _ 15 years.Ive taken driving lessons _last month.My sister has had her cell phone _a month.My friends havent visited me _few days ago.We havent used our car _ a long time.She hasnt had a good cup of coffee _years.Tom has worn glas
7、ses _he was 7 years old.for since forsinceforforsince第10页，此课件共17页哦注：并非所有注：并非所有for作为时间状语的句子都用现在完成时作为时间状语的句子都用现在完成时 搞清一般过去时和现在完成时的区别搞清一般过去时和现在完成时的区别I worked here for more than twenty years.(我现在已经不在这里工作了我现在已经不在这里工作了)I have worked here for more than twenty years.（现在我仍在这里工作）（现在我仍在这里工作）第11页，此课件共17页哦辨析 hav
8、e been to和 have gone toMy father has gone to Shanghai for a meeting.他（已经）去了上海。My father has been to Shanghai for a meeting.他（曾经）去了上海。She has been to China.她（曾经）去过中国。（人已经回来了）have been to someplace.曾经去过某地，已经回来曾经去过某地，已经回来has gone to someplace.某人去了某地，还没有回来某人去了某地，还没有回来 She has gone to China last week.上周她
9、去了上海。（人可能回来了也可能没回来）第12页，此课件共17页哦用用have/has been to,have/has gone to填空填空：1.Where is your brother?He _ the shop.Hell be back soon.2._ you ever _ to America?Yes,I _ New York twice.3.Here you are at last!Where _ you _?I _ London.4.David _Australia.Im sure hes already arrived.5.Is Benny here?No,he _ the
10、school library.He left five minutes ago.has gone toHave been tohave been tohave beenhave been tohas gone tohas gone to第13页，此课件共17页哦 9.He _(go)to school on foot every day.10._ you _(find)your science book yet?11.If it _(be)fine tomorrow,Ill go with you.12.The students _(read)English when the teacher
11、came in.13.Look!The monkey _(climb)the tree.14.My mother _(come)to see me next Sunday.15.Ive lost my pen._ you _(see)it anywhere?goeshave,foundiswere readingis climbingis comingHave,seen第14页，此课件共17页哦1.I_ already _(see)the film.I _(see)it last week.2._ he _(finish)his work today?Not yet.3.My father _
12、 just _(come)back from work.He is tired now.4.Wheres Li Ming?He _(go)to the teachers office.5.I _(work)here since I _(move)here in 1999.6.So far I _(make)quite a few friends here.7.How long _ the Wangs _(stay)here?For two weeks.8.I _ just _(finish)my homework.have,seen,sawHas,finishedhas,comehas gon
13、ehave worked,movedhave madehave,stayedhave,finished第15页，此课件共17页哦 1.have,seen,saw 2.Has,finished 3.has,come 4.has gone 5.have worked,moved 6.have made 7.have,stayed 8.have,finished 9.goes 10.have,found 11.is 12.were reading 13.is climbing 14.is coming 15.Have,seen第16页，此课件共17页哦感谢大家观看感谢大家观看第17页，此课件共17页哦