下载本文档
版权说明:本文档由用户提供并上传,收益归属内容提供方,若内容存在侵权,请进行举报或认领
文档简介
1、初中现在完成时时态讲解 一、注意弄清时态的实际意义现在完成时表示的是在过去某个时间开始并持续到现在的动作/状态,或者过去的动作或状态对现在造成的影响或结果。They have left.-他们已经离开了,也就是说现在他们人不在这里I have had my lunch.-我已经吃过午饭了 ,也就是说我现在不饿也可表示持续到现在的动作或状态,或有可能有可能停止,或有可能继续延续下去。He has learned English since 2001.-从2001年开始学的,现在还在继续学着呢二、基本句型结构现在完成时的构成形式: have /has (助动词)+done(过去分词)I/You/T
2、hey/We have talked . He/She has talked.现在完成时的否定结构就是在助动词have或has后加上否定词not;I/You/They/We haven ' t(have not) talked . He/She hasn ' t(has not) talked.其一般疑问句就是将助动词have或has提到句首,Have I/You/They/We talked . Has he/she talked.肯定的简略回答是:Yes,主语+ have/has.,否定的简略回答是:No,主语+ have/has not.。如: I have seen t
3、he film. fHave you seen thefilYes,I have./No , I haven ' t.三、注意掌握两种基本用法1 .过去的经历”:动作发生在过去的某一时刻且已经结束,但未说明动作发生的具体时间或情景, 强调该经历(即动作发生后)对现在所造成的影响或产生的结果。如:I have heard of the man. 我听说过这个人。2 .完成情况”:表示过去已经开始并持续到现在的动作或状态,或有可能继续延续下去。句子中 一般有说明其完成情况的短语或从句。句子中有 巴发生了多久”的时间状语的短语或从句。如:I have lived in Shanghai si
4、nce I was ten years old. 我从十岁起就住在上海。说明到说话时为止,已完成了多少即句中,含有表示完成了多少”的宾语或表示动作发生次数的状语。如:I have read the book three times.这本书我看了三遍。四.一般过去时与现在完成时的区别1) 一般过去时表示过去某时发生的动作或单纯叙述过去的事情,强调动作; 现在完成时为过去发生的,强调过去的事情对现在的影响,强调的是影响。I saw this film yesterday.(强调看的动作发生过了。)I have seen this film.(强调对现在的影响,电影的内容已经知道了。)2) 一般过去
5、时常与具体的表示过去的时间状语连用;现在完成时通常与模糊的时间状语连用,或无时间状语。一般过去时的时间状语 :yesterday, last week, ago, in1990, in October, just now,from.on,-具体的过去时间状语现在完成时的时间状语 :for, since, so far, ever, never, just, yet, till/until, up to now, in the past few years, recently,-模糊的时间状语句子中如有过去时的时间副词(如 yesterday, last, week, in 1960 )时,不能
6、使用现在完成时,要用过去 时(错) Tom has written a letter to his parents last night.(对) Tom wrote a letter to his parents last night.3)现在完成时可表示持续到现在的动作或状态,动词一般是延续性的,如live, teach, learn, work, study,know.一般过去时常用的非持续性动词有come, go, leave, start, die, finish, become, get married 等。She joined the League three years ago.
7、(加入的动作不是延续的 )She has been in the League for three years (since three years ago). (在团内的状态可延续)She has been a League member for three years (since three years ago)是团员的状态可持续 )五比较延续动词与瞬间动词延续动词表示经验、经历;瞬间动词表示行为的结果,不能与表示一段时间的状语连用。He has finished the work. 他已完成了那项工作。(表结果)I ve known him since then. 我从那时起就认识他了
8、。(表经历)注意延续性动词和短暂性动词的用法1. 短暂性动词与短暂性时间(时间点)连用。如:He joined the Party three years ago. 他入党三年了。(他三年前入党的)2 .用“It is/has bee+时间段+ since 句型。如:It is/has been three years since I bought the book.这本书我买了三年了。(从买这本书起到现在已三年了)3 .用相应的延续性动词替换短暂性动词,句中谓语动词用现在完成时,时间状语为“f/时间段”或a sinee时间点”。如:He has been in the Greener Chi
9、na for three years.He has been a member of the Greener China fot three years.他力口入 绿色中国 ”已经三年了。The old man died 4 years ago.He joined the Party 2 years ago.I bought the book 5 days ago.英语延续动词与非延续动词的转换延续性动词表示能够延续的动作The old man has been dead for 4 years.He has been in the Party for 2 years.I have had t
10、he book for 5 days.,如: learn, work, stand, lie, know, walk, keep, have, wait, watch, sing, read,sleep, live, stay 等。延续性动词可以与表示时间段的状语连用。表示时间段的短语有:for+ 一段时间:for 2 years; since 从句 ,since he came here;since+时间点名词 ,since last year, since 5 days ago;how long; for a long time 等。非延续性动词也称终止性动词、瞬间动词,表示不能延续的动作
11、,这种动作发生后立即结束。如 :open, die,close, begin, finish, come, go, move, borrow, lend, buy 等。非延续性动词在肯定句中与表示时间点的状语连用,如:two years ago; at 5 o'clock;例 :He died 5 years ago.延续性动词与非延续性动词之间的转换leave - be awayborrow - keepbuy - havebegin/start - be ondie - be deadfinish - be overopen sth - keep sth openfall ill
12、- be illget up-be upcatch a cold - have a coldcome here - be herego there - be therebecome - become back - be backfall asleep - be asleepget to/ arrive/reach - be (in) leave - be away from get to know - know go (get) out f be out put on f wear比较 since 和 forsince用来说明动作起始时间一自从”for用来说明动作延续时间长度一 长达”I ha
13、ve lived here for more than twenty years.I have lived here since I was born.My aunt has worked in a company since 1949.I have not heard from my uncle for a long time.注意:并非有for 作为时间状语的句子都用现在完成时(我现在已不在这里工作。)I worked here for more than twenty years.I have worked here for many years.(现在我仍在这里工作。)比较 have/
14、has been to have/has gone to have/has been inHe went to Shanghai last week 上周他做了一件事:那就是去了上海He has been to Shanghai. 他 (曾经)到 /去过上海在他人生中曾经有过这样的经历,但他人现在肯定不是在上海而是回来了He has gone to Shanghai. 他已经去上海了也许刚动身出发,也许已经到了,也许还在路上,反正他人不在这里 He has been in Shanghai for 10 years. 他呆在上海迄今为止已经10年了现在还在上海没有离开呢He lived in
15、Shanghai for 10 years. 以前他在上海住过10 年现在不在上海了延续性动词和瞬间性动词之间的转化1. He died 10 years ago. - He for 10 years / since 10 years ago.2. He borrowed the book 2 weeks ago.- He the book for 2 weeks.3. He bought the motorbike a month ago. -He the motorbike for a month.4. He arrived here three days ago. - He here s
16、ince three days ago.5. They turned off the light 2 hours ago.6. He left here 2 years ago.- He7. The film began 30 minutes ago.8. They opened the door an hour ago.9. They closed the door an hour ago.10. He joined the army last year.- He the army for a year.- It a year he joined the army.现在完成时专项练习一、单项
17、选择。- The light for 2 hours.from here for 2 years.for 30 minutes.- The film - The door for an hour.- The door for an hour.- He a for a year.1、 、 Both his parents look sad . Maybe they what's happened to him . (呼和浩特)A. knew B . have known C . must know D .will know2、 He has _ been to Shanghai , ha
18、s he ?A. already B .never C .ever D . still3、 Have you met Mr Li ?A. just B . agoC .before D . a moment ago4、 The famous writer one new book in the past two year . is writing.was writingC .wrote D .has written5、 Our country a lot so far . Yes . I hope it will be even .A. has changed ; well B . chang
19、ed ; good C . has changed ; better D . changed ; better6、 、 Zhao Lan already in this school for two years .A. was ; studying B . will ; study C . has ; studiedD . are ; studying7、 、We XiaoLi since shewas a little girl.A.know B .had known C. have known D . knew8、 Harry Potter is a very nice film .Iit
20、 twice .A. will see B . have seenC. sawD .see9、 These farmers have been to the United States . Really ? When there ?A. willthey go B . didthey go C . do theygo D. have they goneB . Have ; done ; finished . will ; do ; finish10、 you _ yourhomework yet ?Yes . I ita moment ago . Did ; do ; finished. Ha
21、ve ; done ; have finishedA.joined1B . has joinedC . was inD. hasbeen in12、 Do you know him well ?一Sure .Wefriends since ten years agoA.wereB . have beenC. have becomeD .have made13、 How long have you _ here ?About two months.A.beenB . goneC . comeDarrived14、Hurryup! The playfor ten minutes .A.hasbeg
22、un B . hadbegunC. hasbeen onD. began15、It _ ten years sincehe left the army.A . is B .hasC . will D .16、MissGreen isn't inthe office . sheto the library .A .has goneB . wentC .will go Dhas been17、Myparents Shandong for ten years .A.havebeen in B . havebeen to C . havegone to D. have beenHis fath
23、er11、theParty since 1978 .18、wasThe students have cleaned the classroom,?A. so theyB. don ' t they C. have theyD.haven ' t they19、has Mr White been a member of Greener China since heto China?A. How soon, comesB. How often, gotC. How long, cameD. How far, arrived20、 His unclefor more than 9 y
24、ears.A. has come here B. has started to work C. has lived there D. has left the university二、 句型转换。1、He has never surfed,?(改成反意疑问句)2、They have been here since 2000.(提问)have they been here?3、 The old man last year. He for a year. (die) (动词填空)4、This factory opened twenty years ago.(同义句转换 )This factory
25、for twenty years.5、Miss Gao left an hour ago.(同义句转换)Miss Gaoan hour ago.6、Her mother has been a Party member for three years .(同义句)Her mother the Party three years .7、The Green Family moved to France two years ago.(同义句转换 ) two years the Green family moved to France.8、 The bus has arrived here. It ar
26、rived ten minutes ago.(把两个句子合并成个句子)三、汉译英。1、吉姆已做完作业,他现在有空了。 2、他昨天收到一封信。3、我父亲以前到过长城。 4、她还没有看过那部新电影。 5、她去过上海。 6、他这些天上哪儿去了?参考答案:一、单项选择。1 、现在完成时主要强调过去发生的动作对现在造成的影响,或过去发生的动作还未结束,一直持续到现在或将来,重点在于对现在的影响。这种考查难度较大,往往无时间状语,需要从上下文分析、推理才行。故上两侧根据上下文分析、推理,正确答案是B。2、现在完成时常与 already (已经),just (刚刚,正好),ever (曾经),never (
27、从来,也不;从不), before (以前),yet (仍然)等连用。故 2应选B。3、 C4、现在完成时常与 recently (近来),so far (到目前为止),in the past/ "last十段时间”等时间状 语连用。 因为上述短语表示的是从现在起往前推算的一段时间,句中的动作是从过去某一时间或时刻开始持续到现在的。故4 应选D。5、 C6、现在完成时时常与“ for +时间段或since +过去时间点”连用(含从句,从句过去时)。故 6 应选C。7、 C8、现在完成时还与 once (一次),twice (两次),three times (三次),several times (几次)等表示重复次数的词语连用。故8 应选
温馨提示
- 1. 本站所有资源如无特殊说明,都需要本地电脑安装OFFICE2007和PDF阅读器。图纸软件为CAD,CAXA,PROE,UG,SolidWorks等.压缩文件请下载最新的WinRAR软件解压。
- 2. 本站的文档不包含任何第三方提供的附件图纸等,如果需要附件,请联系上传者。文件的所有权益归上传用户所有。
- 3. 本站RAR压缩包中若带图纸,网页内容里面会有图纸预览,若没有图纸预览就没有图纸。
- 4. 未经权益所有人同意不得将文件中的内容挪作商业或盈利用途。
- 5. 人人文库网仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对用户上传分享的文档内容本身不做任何修改或编辑,并不能对任何下载内容负责。
- 6. 下载文件中如有侵权或不适当内容,请与我们联系,我们立即纠正。
- 7. 本站不保证下载资源的准确性、安全性和完整性, 同时也不承担用户因使用这些下载资源对自己和他人造成任何形式的伤害或损失。
最新文档
- 专业化消防工程安装协议范本(2024年版)版
- 2025年度厂区新能源发电项目合作协议3篇
- 2025年度电商大数据安全保护合作协议4篇
- 旅游业绩深度剖析
- 专业汽车起重机租赁协议2024版范本版B版
- 二零二五年度智能化家居系统安装合同3篇 - 副本
- 二零二五年度大渡口区吸污车租赁与环保技术研发协议3篇
- 2025年度测井设备研发与技术服务合同4篇
- 二零二五年度船舶航行安全GPS监控合同文本3篇
- 2025年度公共场所场地借用及安全保障协议书2篇
- 品质经理工作总结
- 供电抢修述职报告
- 集成电路设计工艺节点演进趋势
- 新型电力系统简介演示
- 特种设备行业团队建设工作方案
- 眼内炎患者护理查房课件
- 肯德基经营策略分析报告总结
- 买卖合同签订和履行风险控制
- 中央空调现场施工技术总结(附图)
- 水质-浊度的测定原始记录
- 数字美的智慧工业白皮书-2023.09
评论
0/150
提交评论