Unit 1-3现在完成时梳理
译林版高中英语必修2讲义Unit 1 Section Ⅲ Grammar——现在完成时和现在完成进行时
Section ⅢGrammar——现在完成时和现在完成进行时一、现在完成时1．现在完成时的用法(1)表示过去发生的动作产生的结果或对现在造成的影响。
动作虽然发生在过去，但落脚点在现在。
I've forgotten his telephone number.我忘记了他的电话号码。
(没法联系他了)I haven't finished reading this book yet，so I can't return it to the library.这本书我还没有看完，所以不能把它还给图书馆。
(2)表示动作或状态从过去某时开始一直延续到现在，并可能延续下去。
常与so far，by now，up to now，since，for a long time，up till now，in the past/last few years 等表示一段时间的状语连用。
He has worked here for twenty years by now.到现在为止，他已经在这儿工作20年了。
Up to now，we have received no letters from her.到现在为止，我们没有收到她一封信。
[名师点津](1)该用法中的动词多是延续性动词，不能是非延续性动词或趋向动词。
(2)非延续性动词用于否定句可以表示否定的状态，故可以用来表示状态的持续。
(3)由since引导的时间状语中，since后面的时间名词必须是“时间点”，而不能是“时间段”；而for短语中的时间名词必须是“时间段”(有时for可省去)。
I've known him since 1980.我从1980年就认识他了。
I have learnt English (for) many years.我学英语已很多年了。
[即时演练1]用所给动词的适当形式填空①The price has gone (go)down，but I'm not sure whether it will remain so.②All the windows have been painted (paint)，and they look new.③I have read (read)many reports about the UFO recently.④In the last few years，China has made (make) great achievements in environmental protection.⑤His first novel has received (receive) good reviews since it came out last month.2．现在完成时的常用句型(1)It/This is the first/second/...time that＋主语＋谓语部分(常用现在完成时)(2)It has been＋一段时间＋since...(3)It/This/That is the＋最高级＋名词＋定语从句(定语从句常用现在完成时)It is the first time that I've heard of the story about Crop Circles.这是我第一次听说麦田怪圈的故事。
高一必修一unit3语法
单元语法全解一、一般现在时1.谓语动词构成:do/does2.表达意义：(1)表示经常性、习惯性的动作或状态。
He always goes to work by subway.他总是乘地铁去上班。
(2)表示客观真理或用于格言中。
The sun rises in the east and sets in the west.太阳从东方升起，在西方落下。
Light travels faster than sound.光比声音传播快。
(3)表示主语现在的特征或状态。
Jenny loves music.珍妮喜欢音乐。
We are in Class One, Grade Two.我们在二年级一班。
(4)按时间表、时刻表、日程表等安排将要发生的动作，用一般现在时。
这种安排往往不可更改或不能随意变动。
动词(短语)一般表示“开始；结束；到达；离开；起飞；开幕；举行;停止”等意义。
例如begin, start, end, arrive, leave,take off, open, hold, close, stop 等。
The shop closes at 11:00 p. m. today.这家商店今天晚上11点关门。
3.常见的时间状语：always, usually, often, every day, once a week, some-times, at times, from time to time, occasionally, seldom,never, nowadays, today 等。
4.常使用的固定句式：在时间状语从句、条件状语从句中，常常用一般现在时表将来。
I don't know when she will come. When she comes, please tell her the good news.我不知道她什么时候会来。
她来时请告诉她这个好消息。
二、现在进行时1.谓语动词构成:is/am/are doing2.表达意义：(1)表示说话时正在进行的动作，即此时此刻正在进行的动作。
高一必修一unit3语法知识点总结
高一必修一unit3语法知识点总结高一必修一unit3是英语教材中的一单元，主要介绍了几个重要的语法知识点。
本篇文章将对这些知识点进行总结和归纳，以帮助同学们更好地理解和应用这些语法知识。
1. 一般现在时一般现在时表示经常性、习惯性的动作或状态。
它的基本结构是主语+动词原形，例如：“He plays basketball every day.”（他每天打篮球.）其中的动词plays是第三人称单数形式的动词。
2. 现在进行时现在进行时表示正在进行的动作。
它的基本结构是：主语+be 动词+动词ing形式，例如：“She is reading a book now.”（她正在读一本书.）其中的be动词根据主语的人称和数的不同变化，动词ing形式则表示动作正在进行。
3. 一般过去时一般过去时表示过去某个时间发生的动作或存在的状态。
它的基本结构是主语+动词过去式，例如：“They watched a movie lastnight.”（他们昨晚看了一场电影.）过去式的构成形式有规则变化和不规则变化，需要根据具体的动词来确定。
4. 过去进行时过去进行时表示过去某个时间正在进行的动作。
它的基本结构是：was/were+动词ing形式，例如：“I was studying when he called me.”（他给我打电话的时候，我正在学习.）过去进行时的be动词形式根据主语的人称和数的不同变化，动词ing形式则表示过去进行的动作。
5. 一般将来时一般将来时表示将要发生的动作或存在的状态。
它的基本结构是：will/shall+动词原形，例如：“I will go to Beijing next week.”（我下周将去北京.）不同的人称和数有不同的构成形式。
6. 现在完成时现在完成时表示过去某个时间开始的动作一直延续到现在，或者过去发生的动作对现在产生的影响。
它的基本结构是：have/has+动词过去分词，例如：“I have lived here for ten years.”（我住在这里已经十年了.） have/has的形式根据主语的人称和数的不同变化，动词过去分词则表示动作已经完成。
六年级第二学期牛津英语U1---U5知识点梳理
The Double Ninth Festival is my favourite festival. It is also called the Chongyang Festival, and it is on the ninth day of the ninth lunar month in China. It has a long history of more than 2,000 years. To many people, the festival is a great time for going out. On that day, people prefer to hike and climb. Also, drinking special wine and eating Chongyang Cake are traditional customs. I like the Double Ninth Festival best.六年级第二学期牛津英语U1---U5知识点梳理.Module 1 City lifeUnit1 Great cities in Asia知识点梳理：I 词组1. at an exhibition 在展览会上2. the capital of China 中国的首都3. north-east of Shanghai 在上海东北面east/ west/ south / north of 在……的东、西、南、北面north-east /north-west of 在……的东北、西北south-east /south- west of 在……东南，西南* in/on/to the east ofeg. Shanghai is in the east of China.Korea is on the east of China.Japan is to the east of China.3. how far 多远4. how 如何/怎样5. how long 多久6. in the past 在过去7. other places 其他城市8. from shanghai to Beijing 从上海到北京9. read some information about Beijing 阅读关于北京的信息10. the Great Wall 长城* the Summer Palace 颐和园* the Palace Museum 故宫博物院11. more than= over 超过* less than = under 少于12. 15 million people 一千五百万人*millions of, thousands of13. huge department store 大型百货公司*huge= very big14. spicy food 辣的食物15. in Asia 在亚洲16. great cities= big cities 大城市17. which city 哪个城市18. by plane=by air; 乘飞机by ship=by sea; 乘船by train/ ferry 乘火车/ 渡轮19. That’s right. 对的。
牛津译林版英语八下_Units 1-3 现在完成时语法讲解和练习
8BUnit1-3现在完成时语法（完整讲解）和练习（含答案）一、现在完成时讲解8BUnit1语法1. 构成：have / has + 动词过去分词2. 意义1）过去开始一直延续到现在的动作或状态。
She has lived here since she was born.You have studied in this school since 2014.I have taught English for 18 years. (注意：动词必须为延续性动词)2）发生在过去，对现在有影响的动作。
I have lost my key, so I can’t get into my house.Who has cleaned the window? It’s really clean.The bus has left, you must wait for the next one.I have seen the film. I won’t see it tonigh t.3）到目前为止，事情发生的次数。
I have already read this book many times.My uncle has been to France twice.How many times have you been to Beijing?★现在完成时的不同句式：1) She has lived in Wuxi since 2002.→Has she lived in Wuxi since 2002? Yes, she has./ No, she hasn’t.→She hasn’t lived in Wuxi since 2002.→How long has she lived in Wuxi?2) They have been to Shanghai three times.→Have they been to Shanghai three times?Yes, they have./ No, they haven’t.→They haven’t been to Shanghai three times.→How many times have they been to Shanghai?3.完成时常和以下时间状语连用：1)already 已经肯定句/ 特殊疑问句yet 还，仍否定句/ 一般疑问句She has already finished her homework. 句中She has finished her homework already.句末Has she finished her homework yet? 句末She hasn’t finished her homework yet. 句末2) ever 曾经肯定句/ 一般疑问句never 从未否定句I have ever seen the film. （肯定句）Have you ever seen this film? （一般疑问句）I have never seen the film. （否定句）3) since 自从+ 过去的时间点/ 一般过去时从句for 长达+ 一段时间（表示过去开始一直延续到现在的动作或状态）我爸爸在这住了二十年了。
Unit1-Unit3语法现在完成时教案
5.加强与学生的互动，及时了解他们的学习需求和困惑，以便调整教学策略，使课堂更加生动有趣。
3.成果分享：每个小组将选择一名代表来分享他们的讨论成果。这些成果将被记录在黑板上或投影仪上，以便全班都能看到。
（五）总结回顾（用时5分钟）
今天的学习，我们了解了现在完成时的基本概念、重要性和应用。同时，我们也通过实践活动和小组讨论加深了对现在完成时的理解。我希望大家能够掌握这些知识点，并在日常生活中灵活运用。最后，如果有任何疑问或不明白的地方，请随时向我提问。
3.现在完成时与一般过去时的区别：通过时间状语和语境来判断。
4.现在完成时的疑问句和否定句构成：How long has...?/How many...have...?等疑问句型，以及主语+ haven't/hasn't +过去分词的否定句型。
5.常见现在完成时的动词搭配：如seen, done, been, gone等。
（3）现在完成时的疑问句和否定句构成：这是学生需要掌握的重要语法点，教师应详细讲解并举例说明。
-例如：How many books have you read this month?（这个月你读了几本书？）
2.教学难点
（1）现在完成时态中动词过去分词的用法：对于一些不规则动词，学生容易混淆过去分词形式，这是教学的难点。
（3）现在完成时在具体语境中的应用：教师要引导学生学会在特定语境中运用现在完成时，以表达正确的含义。
-例如：在描述经历、询问别人经历或谈论过去发生但对现在有影响的事情时使用现在完成时。
（4）现在完成时与一般过去时的区分：这是学生容易混淆的地方，教师需要通过丰富的例句和情景练习来帮助学生突破这一难点。
初三英语Unit1-6复习(语法部分)知识精讲
初三英语Unit1-6复习(语法部分)知识精讲【同步教育信息】一. 本周教学内容：Unit 1-6 复习（语法部分）（一）现在完成时（The Present Perfect Tense）1. 动作发生于一个非确定的过去的时间（过去的时间并不重要或根本不知道），但它的结果仍对现在有影响.I have read the letter， and I know what it is about.2. 动作发生在过去，目前仍在继续或刚刚结束，常和“for”加上“一段时间”，或“since”加上“一个确切的过去的时间”连用。
“for”用于过去的一段时间. （动词必须是可以延续的）He has been there for six months. 他去那有6个月了。
（直到现在）He has never been there. 他从来都没去过那里。
（直到现在）“since”用于过去的一个确切的时间，意思是“从那时一直到现在”，总是和完成时一齐用，而且不能省略。
（主句动词必须是可以延续的）since +一段时间＋ago；since＋一个时间点；since＋从句。
如：He has stayed here since 3 hours ago.He has stayed here since 3 o’clock.Tim has been in Nantong since January.自从1月份以来Tim一直都在南通。
（现在仍在南通）注意：“since”后面的确切的过去的时间也可以是一个含有过去时的从句.He has been interested in collecting coins since he was a child.他打小时候起就对收集硬币感兴趣。
（现在还是如此）He has taught English since he came here.现在完成时常和短语“up to now /till now”，“so far”（意思是从过去某一确定的时间一直延续到现在）连用。
初一年级上学期8B Unit 1---3重 点 词 组
初二年级下学期（8B）Unit 1---3重点词组in fact 事实上get married 结婚move out of 搬出……turn into 变成light rail 轻轨play Chinese chess 玩中国象棋noise pollution 噪音污染the closing of the old airport 旧机场的关闭take off 起飞land safely 安全着陆feel a bit lonely 感到有点孤独from time to time 不时的used to be 过去常常cause problems 引起问题bring many benefits 带来很多好处lose one’s living areas 失去居住地the whole day 整天as soon as 一……就……even though 尽管look cute 看上去可爱so that 如此……以至于…… a fast-food restaurant 一家快餐店like apple pies best 最喜欢苹果派clap our hands 拍手march across the park 行进穿过公园can’t stop taking photos不能停止拍照jump out of it 从里面跳出来 a shiny golden silk dress 一件闪光的金色丝裙match well with 搭配的好the bow on her left ear 她左耳上的蝴蝶结wave to the visitors 向游客挥手the city center of Tokyo 东京市中心have some Japanese food吃些日本菜show them to you 把它们给你看remote control 遥控change the channel 换频道search for information 搜索信息word processing 文字处理send and receive e-mails发送接受电子邮件write computer program写电脑程序at the same time 同时the all-time favourite game空前受欢迎的游戏the main character 主角lie on the grass 躺在草地上earn a point 得一分play the role of 扮演……的角色be sold out 卖完 a set of keys 一组键floppy disk 软盘 a short. movable line 一条短的移动的线a flat piece of plastic 一薄片塑料hard disk 硬盘a lot of memory 许多内存a famous indoor theme park 一个著名的室内主题公园dance to the music so beautifully 和着音乐优美地跳舞a thirteen-year-old boy named……一个叫……的13岁小男孩move the cursor on the screen 在屏幕上移动光标test your knowledge of English grammar and vocabulary 测试你英语语法和词汇的知识语法精讲1. He used to live in the Kowloon Walled City in Hong Kong.他过去住在香港的九龙城。
- 1、下载文档前请自行甄别文档内容的完整性，平台不提供额外的编辑、内容补充、找答案等附加服务。
- 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
- 3、如文档侵犯您的权益，请联系客服反馈,我们会尽快为您处理(人工客服工作时间：9:00-18:30)。
现在完成时一、知识梳理要点一：现在完成时用来表示之前已发生或完成的动作或状态，但它的影响现在还存在；也可表示持续到现在的动作或状态。
要点二：1、构成：have (has) +过去分词。
规则变化的过去分词与过去式的变化一样，在动词词尾加ed; 不规则变化的过去分词见不规则动词表，需要同学记忆。
现以see the film为例将现在完成时的肯定句，否定句和疑问句列表如下：肯定句：I/You/We/They have seen the film. He/She /It has seen the film.否定句：I/You/We/They have not/ haven’t seen the film.He/ She/It has not/hasn’t seen the film.疑问句：Have I/you/they seen the film? Yes, you/ we/I/they have. No, you/ we/I/they haven’t.Has he/she/it seen the film? Yes, he/ she/ it has. No, he/ she/ it hasn’t.2、变化规则：与动词过去式规则相同。
①一般直接在词尾加上ed。
look —looked②以e结尾的动词，直接加d。
move —moved③以y结尾，y前面是辅音字母的动词，变y 为i，再加ed。
carry —carried④部分动词需双写尾字母，加ed。
stop —stopped⑤不规则变化AAB型ABB型用法：现在完成时既涉及过去，又联系现在。
用法1：表示过去发生或已经完成的某一动作对现在造成的影响或结果。
常与just（刚刚），already（已经），never（从来没有），ever（曾经），before（以前），yet（仍然），once（一次），twice（两次），many times（很多次），how many times（多少次），so far（迄今为止），during the past（last）three years（最近三年来）等连用。
※副词的位置：①just常用于肯定句中，放在have / has后，He has just come .②never表示否定, 放在have / has后, He has never visited the Great Wall.③ever用于疑问句中,句型为: Have / Has＋主语＋ever＋过去分词？“…曾经……过吗？”用于询问某人过去的经历。
Have you ever been to the farm？④before用于句末，The woman has never heard of that before.⑤yet 用于句末或not 之后. Has the train arrived yet? No, not yet.⑥already用于肯定句, have / has 之后或句末.We have already finished it.⑦so far用于句首或句末. So far, we have visited the moon.用法2：表示过去已经开始，一直延续到现在的动作或状态。
时间状语有：①for＋表示一段时间的词语I have taught English for 19 years。
②since＋表示过去时间点的词语He has been at this school since 1986.③since＋表示过去的时间状语从句I have lived here since I was born.④since＋一段时间＋ago. I have known him since 20 years ago.用法3：表示到现在为止多次发生的动作，常带有twice, ever, never, three times等时间状语。
I have been to Beijing twice. 我去过北京两次。
He has watched the film twice. 这部电影他已经看过两遍了。
要点四：现在完成时态中，可以和表示一段时间状语（for，since，how long, all one’s life）连用的动词必须是表示延续的情况或动作的动词，即延续性动词。
如：be，have，know，live，work，study，learn，teach，keep，speak，talk，draw，wait，wear，walk，sleep，drive，write，do，clean等。
I have been a teacher for nearly 20 years. How long has he lived here?要点五：延续性动词的现在完成时可和包括“现在”在内的（到说话时仍未结束）表示一段时间的状语连用。
如this morning，today，this week，these daysHe has been to Beijing three times this year.He has written two letters this morning.（说话时间在上午）He wrote two letters this morning.（说话时间在下午或晚上）要点六：英语中还有一些动词的意义决定它们所表示的动作不能延续,只是一瞬间就结束的动作,这类动词叫做“非延续性动词”（短暂性动词/瞬间动词），常见的有：come，go，arrive，reach，see，hear，close，open，leave，begin，start，lose，buy，fall，join，die，get up，become，borrow，lend，find，finish，receive等。
这些动词可用于现在完成时，说明某个动作的结果还存在，但不能和表示一段时间的状语（how long，for，since）连用。
He has come back.（√）He has come back for two hours.（×）※但在否定句中，非延续性动词也可用表示一段时间的状语来修饰（因为非持续性动词的这种否定形式构成一种状态，而这一状态是可以持续的），如I haven’t heard from my father for a long time.We haven’t seen him since 1999.【注意】：当终止性动词（非延续性动词）与表示一段时间的状语（how long，since，for，all one’s life）相矛盾时,改正错句的方法有如下几种:（1）用副词ago把现在完成时的句子改为一般过去时.He has come back for two weeks.（错）改为:He came back two weeks ago.（正）I have lost my bike for ten days. （错）改为:I lost my bike ten days ago. （正）（2）用“It is / has been＋时间＋since＋一般过去时态”句型来改写。
He has joined the League（社团）for 3 years. （错）It is 3 years since he joined the League.I have bought the book for 5 days. （错）It is 5 days since I bought the book. （正）He has died for 20 years. （错）It is 20 years since he died. （正）（3）用“时间＋has passed＋since＋一般过去时态”句型来改写。
He has left home for 20 years. 改为:Twenty years has passed since he left home.He has lost his pen for 2 days. 改为:Two days has passed since he lost his pen. （4）用系表结构来改写.He has died for 20 years. 改为: He has been dead for 20 years.The factory has opened since 1999. 改为:The factory has been open since 1999.How long has he left? 改为:How long has he been away?（5）用相应的延续性动词替代非延续性动词。
He has bought the book for two weeks. 改为:He has had the book for two weeks. 常见的相应转换形式如下:borrow / lend→keep,buy/catch→have,finish / stop/end→be over, begin / start→be on , open→be open ,close→be closed,die→be dead ,leave→be away（from）, get up→be up,fall asleep→be asleep , fall ill→be ill,Married→be married get to know→know,lose→be lost,become→be,begin to study→study,join→be in / be a member of,receive / get a letter→have a letter ,catch / get a cold→have a cold,join the army→be in the army /be a soldier, return / come back / get back→be back,go to school→be in school / be a student, arrive /come / go / move / reach /get to→be in /at / be here /be there,他参军已有三年.He has joined the army for three years.（错）改为:He has been in the army for three years / since three years ago.He has been a soldier for three years / since three years ago.He joined the army three years ago.It is three years since he joined the army.Three years has passed since he joined the army.要点七：现在完成时中应注意的几个问题have/has gone to；have/has been to；have/has been in的区别have/has gone to：已经去了，还没有返回；强调“去了”，现在人不在说话的现场have/has been to：曾经去过某地，现在已经回来了，后面可接表示“次数”的状语；have/has been in：表示某人“已在某地停留一段时间，现仍在那里”，其后常带表示一段时间的状语。