现在完成进行时与现在完成时的区别
(1) 现在完成时可以表示一个已经完成的动作，而现在完成进行时则表示一个正在进行的动作：
I have read the book. 我读过这本书。
I have been reading the book. 我一直在读这本书。
【注】有少数动词(如work, study, live, teach, stay等)在表示持续一时间时用这两种时态含义差不多(只是用现在完成进行进更强调动作的持续性)：
How long have you worked [been working] here? 你在这儿工作多久了？
I’ve lived [been living] here since 1988. 自1988年以来我就一直住在这儿。
(2) 现在完成时通常只陈述事实，而现在完成进行时还可表示一种感****彩：
I have waited for two hours. 我等了两小时。(陈述事实)
I have been waiting for two hours. 我等了两个小时。(等得好辛苦)
(3) 现在完成进行时通常用来谈论较短暂的动作或情况，若要谈论时间延续较长的动作或情况或永久性情况，则通常用现在完成时：
He has lived in Paris. 他(一直)住在巴黎。
He has been living in Paris. 他(目前)住在巴黎。(表暂时性)
(4) 不用于进行时态的动词通常也不用于现在完成进行时，但它们可以用于现在完成时：
I’ve only known her for two day. 我认识她刚刚两天。
They’ve been married for twenty years. 他们结婚已二十年了。
The war has lasted for a long time. 这场战争持续了很长时间。
(5) 现在完成进行时不用于被动语态，若要用可用现在完成时的被动语态代替：
The house has been painted for a month. 这房子已漆了一个月。
The problem has been studied for five days. 这个问题已研究了五天。
现在完成时与现在完成进行时练习篇
A. Correct the following sentences.
1. All these years they are contributing articles to our magazine.
2. I have been drinking five cups of coffee this afternoon.
3. What have you been doing before you left Oxford?
4. It's a good job. Have you done it all by yourself?
5. It's a long time since you come to see me.
6. Alice didn't see much of Henry lately.
7. I'm glad to tell you that you passed the exam.
B. Complete the following sentences with the right form of the verbs given.
1. You know, I ________ (look) for a job for three months, and this is my first
formal interview.
2. My sister ________ (stay) in Beijing for three months last year.
3. The little boy is dirty all over because he ________ (play) in the mud all the
morning.
4. I ________ (wonder) if you were free this afternoon.
5. Here he is! We ________ (wait) anxiously for him since last night.
C. Make the best choices.
1. —I’m sure Andrew will win the first prize in the final.
—I think so. He ________ for it for months. (2008江苏)
A. is preparing
B. was preparing
C. had been preparing
D. has been preparing
2. By the time he realizes he _________ into a trap, it’ll be too late for him to
do anything about it. (2008山东)
A. walks
B. walked
C. has walked
D. had
walked
3. So far this year we _______ a fall in house prices by between 5 and 10
percent. (2008福建)
A. saw
B. see
C. had seen
D. have seen
4. Cathy is taking notes of the grammatical rules in class at Sunshine
School, where she ______ English for a year. (2007湖南)
A. studies
B. studied
C. is studying
D. has been
studying
5. Danny _________ hard for long to realize his dream and now he is popular.
(2007福建)
A. works
B. is working
C. has worked
D. had
worked
6. —I have got a headache.
—No wonder. You_________ in front of that computer too long. (2007江
西)
A. work
B. are working
C. have been working
D.
worked
7. The unemployment rate in this district_______ from 6% to 5% in the past
two years. (2007上海)
A. has fallen
B. had fallen
C. is falling
D. was falling
8. Now that she is out of job, Lucy ___ going back to school，but she hasn’t decided yet.(北京)
A. had considered
B. has been considering
C. considered
D. is going to consider
9. —______ you ______ him around the museum yet? (2007江苏)
—Yes. We had a great time there.
A. Have ; shown
B. Do ; show
C. Had; shown
D. Did;
show
10. —Hi, Tracy，you look pale.
—I am tired. I _______ the living room all day.
A. painted
B. had painted
C. have been painting
D. have painted
Key：
A. 1. are→have been 2. have been drinking→have drunk 3. have→had
4. Have you done→Did you do
5. come→came
6. didn't seen→hasn't
seen
7. passed→have passed
B. 1. have been looking 2. stayed 3. has been playing/ has played
4. wondered
5. have been waiting
C. 1-5 DCDDC 6-10 CABA C
1）这两个时态的主要差别是，现在完成时表示动作业已完成，而完成进行时却不一定如此：I’ve made a cake. 我做了一个蛋糕。（已做好）
I’ve been making a cake. 我一直在做一个蛋糕。（不一定做好了）
She’s painted a picture. 她画了一幅画。（已画好）
She’s been painting a picture. 她在画一幅画。（可能还没画好）
They’ve built a bridge. 他们建了一座桥。(已建好)
They’ve been building a bridge. 他们一直在建一座桥。（可能还在建）
He’s written a novel. 他写了一部小说。（已完成）
He’s been writing a novel. 他在写一部小说。(可能尚未完成)
2）许多静态动词都只能用于完成时而不能用于完成进行时：
I’ve known that for a long time. 这事我已经知道很久了。
The strike has lasted six months. 这次罢工已经持续了6个月。
Nobody has seen him since last week. 从上周起就没人见到过他。
We’ve had terrible weather for nearly two weeks. 几乎有两星期天气都很恶劣。They’ve owned the house for many years. 这房子他们已经拥有许多年了。
I’ve always thought you’re right. 我一向认为你是对的。
但当意思发生转变时也可能用于完成进行时：
I’ve been thinking of doing so for a long time. 我好久以来一直想这样做。
Tom has been seeing about a work permit for you. 汤姆一直在设法帮你取得工作许可证。
Which judge has been hearing the case? 哪位法官在审这个案子？
She has been having a tooth out. 她在拔牙。
The children have been looking forward to this holiday for months. 孩子们好几个月来一直盼望着这个节日。
want 这个动词有时可用于完成进行时，表示“一直想”：
You’re the very man I’ve been wanting to meet. 你正是我一直想见的人.
3) 有少数动词用两种时态都可以，意思差别不大，如：
They have been working very well this term. 这学期他们学习很好。
They have worked very well this term.
It has been raining for two hours. 下了两个小时的雨。
It has rained for two hours.
I have been hearing from her regularly. 我定期收到她的来信。
I have heard from her regularly.
We have looked for mushrooms but have not found any. 我们找寻蘑菇但一无所获。We have been looking for mushrooms but have not found any.
强调时间长度用完成进行时比较好：
I’ve been coughing all night. 我咳了一整夜。（比I’ve coughed all night. 更能强调咳得久）
All the time she’s been sitting there in silence. 她一直静坐在那里。
All these years we’ve been trying to get in touch with him. 这些年来我们一直在设法和他联系。
He’s been hoping for a raise in salary all the time. 他一直盼着加薪。
创作编号： GB8878185555334563BT9125XW 创作者：凤呜大王* 新概念的现在完成时练习卷 Exercise: I. Fill in the blanks with the proper form. 1. I____ already ____ (see) the film. I ________ (see) it last week. 2. _____ he ____ (finish) his work today? Not yet. 3. My father ____ just ____ (come) back from work. He is tired now. 4. Where’s Li Ming ? He __________ (go) to the teacher’s 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. 9. He ________ (go) to school on foot every day. 10.____ you ______ (find) your science book yet? 11. If it ____ (be) fine tomorrow, I'll go with you. 12. The students ____________ (read) English when the teacher came in. 13. Look! The monkey __________ (climb) the tree. 14. My mother __________ (come) to see me next Sunday. 15. I've lost my pen. _________ you ________ (see) it anywhere? II. Choose the best answer. 1. How long have you _______ here? A. come B. got C. arrived D. been 2. My grandpa died _________. A. at the age of my 2 B. for 2 years C. when I was 2. D. my age was 6. 3. Jane has _____ to BeiJing. She will come back tomorrow. A. been B. gone C. went D. never been 4. It is ten years _____ I last saw her. A. after B. since C. for D. that 5.--Who will go to the station to meet Lorry? --I will. I _____ her several times. A. met B. have met C. had met D. will meet 6. --What a nice dress! How long _____ you _____ it? --Just 2 weeks.
一、时态讲解：现在完成时 （1）构成：现在完成时由助动词have + 过去分词构成，助动词have 有人称和数的变化。第三人称单数用has，其余用have. 现在完成时的否定式直接在助动词后面加上not、疑问式是把助动词提到主语之前。以study 为例，其否定式、疑问式和简单回答形式如下： 1）现在完成时通常表示在说话之前已经完成的动作或存在的状态。说话人强调的是该动作或状态对现在的结果或影响。 My daughter has just gone out. 我女儿刚出去。 I’m sure we’ve met before. 我肯定我们以前见过面。 She has arrived. 她到了。 2）表示持续到现在的动作或状态，往往和包括现在在内的表示一段时间的状语连用，如recently, already, just, lately, fo r…, since…,yet等。如： I haven’t heard from her these days. 这些日子我没有收到她的信。 We haven’t seen you recently. 最近我们没有见到你。 They have been away for two years. 他们离开已经两年了。 She has been with us since Monday. ★注意： a)since和for的区别 since后接时间点，如1993，last term, yesterday, the time I got there for后接一段时间，表示“长达多久”，如ten years, a while, two days等。 Exercise: 用since和for填空 1. Jim has been in Ireland ______ Monday. 2. Jill has been in Ireland ______ three days. 3. His aunt has lived in Australia ______15 days. 4. Mary is in her office. She has been there ______ 7 o'clock. 5. India has been an independent country ______1974. 6. The bus is late. They've been waiting ______ 20 minutes. 7. Nobody lives in those houses. They have been empty ______ many years. 8. Mike has been ill ______a long time. He has been in hospital ______ October. 1. since 2. for 3. for 4. since 5. since 6. for 7. for 8. since 2）表示短暂意义的动词如arrive, leave, borrow, buy, begin, start, die等，在完成时当中不能和表示一段时间的状语连用，因为它们表示的动作不可能持续。因此，不能说：
现在完成时和现在完成进行时小练习 1. He _____ with his first teacher for quite a long time. A. lost touch B. got in touch C. lost in touch D. has been out of touch 2. Mary _____ Green for five years. A. has married B. has married with C. married D. has been married to 3. It's the third time I ______him this month. A. had seen B. have seen C. saw D. see 4. Tom ________for more than a week. A. has been away B. has gone away C. went away D. has left 5. We _____each other since I left Shanghai. A. haven't seen B. hadn't seen C. didn't see D. wouldn't see 6. He ________with us since he returned last month. A. lives B. lived C. had lived D. has lived 7. They _____here for more than a month. A. have arrived B. have reached C. have come D. have been 8. Comrade Wang ____the Party for about three years. A. has attended B. has joined C. has been in D. has taken part in 9. The book _____on the floor for ten minutes, but no one has picked it up. A. is lying B. has lain C. has been lying D. lay 10. I _______from him so far. A. didn’t hear B. don't hear C. haven't heard D. hadn't heard 11. Great changes ________in my hometown in the past few years. A. were taken place B. have been taken place C. took place D. have taken place 12. ________ the new color film ________this year? A. Has; been shown B. Did; show C. Are; shown D. Will; show 13. ---Why does Mary look to be so sorry? ---Because she _________by her classmates. A. has been laughed B. has laughed at C. was laughed D. has been laughed at 14. For this he _________on twice. A. has operated B. has been operated C. had been operated D. operated 15. I haven’t seen you for quite some time. What ______lately? A. were you doing B. did you do C. have you been doing D. had you done 16. The house looks much bigger now that we _______ the walls in brighter colours. A. are painting B. have painted C. had painted D. have been painting 17. ---How about my food? I _______ here for almost half an hour. ---I’m sorry, sir. It must be ready by now. A. have been sitting B. am sitting C. had been sitting D. was sitting 18. Mary ___________ at this school for thirty years but she hasn’t decided to retire. A. has been taught B. has been teaching C. taught D. had taught 19. I ______ always ______ of him, but I can’t see him. A. had; been thinking B. have; been thinking C. was; thinking D. have; thought 20. Although medical science ______ control over several dangerous diseases, what worries us is that some of them are returning. A. achieved B. has achieved C. will achieve D. is achieving 21. —Is it hard to drive downtown to work? —Yes, that’s why I to work by train. A. have been going B. have gone C. was going D. will have gone
一.表达概念： 1.表示到说话人说话时已经完成的动作，却对现在仍有影响或结果。 例句：He has lost his book.他丢了他的书。 2.表示事情开始与过去，却一直持续到现在还在进行的事情。 例句：He has taught in our school for 30 years. 他在我们学校教书已有30年了。 3.表示从过去某个时间直到现在的这个时间范围内不断重复发生的动作或情况，并且这个不断重复的动作有可能继续下去，也有可能到现在就结束。 例句：My father has always gone to work by bike. 我父亲一向骑车上班。 4.同一般现在时可以表示将来一样，现在完成时也可以在时间状语从句里表示将来。 例句：I’ll wait until he has written his letter. 我愿等到他把信写完。 二、句型构成 主语+have/has+动词的过去分词(p.p）（V-ed） e.g done ①肯定句中：主语+have/has+动词的过去分词(p.p）（V-ed）+宾语. ②否定句中：主语+haven't/hasn't+动词的过去分词（p.p）（V-ed）+宾语. ③一般疑问句中：Have/Has+主语+动词的过去分词（p.p）（V-ed）+宾语. ④特殊疑问句中：特殊疑问词或词组+一般疑问句（have/has+主语+过去分词（V-ed）+其他） 三、时间状语 常与现在完成时连用的时间状语： ever,never,already,yet,just,before,recently,still,lately,since+时间点,for+时间段,etc. 四、注意点
一般过去时与现在完成时区别专题 一、前言： 初一下学期同学们学习了一般过去时态的相关知识，即将到来的初二上学期英语学习中，现在完成时是重要的学习内容。本文通过对比一般过去时和现在完成时，对现在完成时进行初步讲解，希望使同学们读新学期的学习有所准备。 二、现在完成时 1. 现在完成时的构成 现在完成时是由助动词have (has)+动词的过去分词构成。助动词说明该谓语是属于现在时范围。它和主语的人称、数要保持一致。过去分词是主要的谓语动词，说明句子的意义。 2. 现在完成时的用法 现在完成时表示过去某时发生的行为对主语目前产生的影响。即用过去发生的某个行为来说明现在的某种情况。 We are good friends.(现在的情况） I knew him in 1997.（过去的动作） We have known each other since 1997. （现在完成时把过去的动作和现在联系起来并着眼于现在） （1）表示动作发生在过去某个不确定的时间，但对现在留下了某种影响和结果。常被just、already、yet 等副词修饰。如： -Have you had lunch yet? -Yes, I have. I've just had it. 你（已经）吃午饭了吗？我刚刚吃过。（现在我不饿了） （2）表示从过去某一时刻开始一直持续到现在的动作或状态。这个动作可能刚停止，可能仍然在进行。常带有for和since等表示一段时间的状语。 如：He has taught here since 1981 他自1981年就在这儿教书。（可能还要继续教） I haven't seen her for four years. 我有四年没见到她了。 （3）表示说话前发生过一次或多次的动作，现在成为一种经验，一般译为汉语“过”，常带有twice,ever, never,three times等时间状语。 如：I have been to Beijing twice.我去过北京二次。 3.现在完成时的时间状语 （1）现在完成时属于现在时范围，故不能和过去的时间状语连用。如：yesterday,last Sunday,in1990,three years ago等。但是，在强调动作产生的后果和影响时，可以和一些表示不确定的时间状语连用。 a. 用副词already和yet。already一般用于肯定句中，yet一般用于否定句和疑问句中。 如：We have already finished our homework.我们已完成作业了。 They haven't finished their homework yet.他们还没有完成作业。 b.用ever 和never。多用于否定或疑问句中，表示“曾经”或“从未“等。 如：-Have you ever been to the Great Wall? 你曾经去过长城吗？ -I have never been to the Great Wall.我从未去过长城。 c.用表示到说话为止的过去时间状语，如just, before, up to now, the past few years等。 例如：I have seen her before, but I can not remember where. 我以前见过她，但记不起在哪里见过。
现在完成进行时 1 定义:现在完成进行时表示动作从过去某一时间开始，一直延续到现在，可能还要继续下去。 2 现在完成进行时的构成:现在完成进行时是由“have/has+been+动词的现在分词”构成 3 现在完成进行时的基本句型 肯定式I/We have been working. 疑问式Have you been working？ 简略回答Yes，I/we have. No，I/we haven't. 肯定式He/She/It has been working. 疑问式Has he/she/it been working？ 简略回答Yes，he/she/it has. No，he/she/it hasn't. 4 现在完成时的用法 1）在强调指出动作还未结束，还要继续下去。如：I've been reading this book for two hours，but I haven't finished it. 这本书我已读了两个小时了，但我还没读完。 I've read this book.我已读完这本书了。 2）强调动作延续时间的长久或带感情色彩。 She has always been working like that.她一贯是这样工作的。 3）现在完成进行时也可表示现在以前这段时间反复发生的事情。 We've been seeing quite a lot of each other recently.最近我们经常见面。 5 相同点 1. 现在完成时和现在完成进行时都可以表示从过去某一时刻开始一直延续到现在的动作.如: I have worked in this school since 2001. I have been working here since 2001. 2. 现在完成时和现在完成进行时都可以表示一段时间内进行的动作.例如: Mr. Smith has taught English for 20 years. Mr. Smith has been teaching English for 20 years 6 现在完成时和现在完成进行时的区别 1）现在完成进行时更强调动作的延续性,它是现在完成时的强调形式。试比较： We've been living here for ten years. We've lived here for ten years.我们在这儿已经住了十年了。
新概念第一册语法讲解：现在完成时 现在完成时 构成：主语+助动词have, has+过去分词 用法： 1）表示过去发生的和现在有某种联系的动作，常和just, usually, already, since等时间副词连用。 I have just had lunch. （饱了，不用再吃了。） He has had a cup of tea.（不渴了，不用再喝。） They have already had their holiday. （不能再度假了。） The boy has already read the book. （已经知道书的内容了，不 用再看了。） 2）询问别人是否做过某事一般用现在完成时： Have you finished your homework? Have you been to Beijing? Have he seen the film? 3）表示开始于过去并持续到现在的动作 I have lived in Beijing for twenty years. I have worked for this school for 1 year. 4）表示一种经历，经验：去过…地方，做过…事情，经历过…事情 I have never had a bath.
I have never seen a film. I have never been to cinema. I have ever been to Paris. Have been to表示去过，have gone to 表示去了 I have been to London.（人已经回来） He has gone to London.（人还在那里） 5）表示一种结果，一般不和时间副词联用 I have lost my pen. I have hurt myself. He has become a teacher. She has broken my heart. 句型变化： ★变疑问句将助动词移到句首，变否定句在助动词后面加not. Have you lost your pen? I have not lost my pen. ★肯定回答及否定回答 Yes, I have. / No, I have not. ★特殊疑问句 What have you done? What has he done? 一般过去时与现在完成时的区别： 凡是有明确的表示过去的时间状语的句子为过去时。
现在完成时和过去时的区别及练习 一、现在完成时的用法。 1.现在完成时强调过去动作对现在的影响 I have lost my wallet now. I can’t find it now. 我的钱包掉了，我现在找不到。 2.现在完成时强调过去动作一直持续到现在。 I have had this book for a year. 我拥有这本书1年了。 3.现在完成时表示动作尚未完成。 I have lived here for 5 years. 我在这里住了5年（现在也还在这里住） 4.现在完成时可以与不确切的过去时间连用。 She has entered speaking competition before. 她曾经参加过演讲比赛。 5.现在完成时可以用来描述活着的人的经历。 He has been to America four times. 他去过美国4次。（他现在还活着） 6.现在完成时可以与未完成的时间状语连用。 She has finished her homework today. 今天他已经完成了家庭作业。（today, this week, this year 是未完成的时间状语） 二、过去时的用法 1.
1.表示过去完成的动作，现在已不是这样。 —What do you think of her? 你认为她怎样？ —She was cute. 她曾经很可爱（表示她现在已不可爱了。） 2.与过去某一具体的时间状语连用，表示过去完成的动作。 She lost her wallet yesterday. (她昨天弄丢了她的钱包。) 3.表示去世的人过去的经历。 He went to America four times.一生中, 他去过美国4次（表示他已去世）练习 1.Ronaldo ______________( win) 29 major trophies in his career. 2.I ____________(have)him for three months and I really feel healthy. 3.She_______________(be) ill for three days. 4.They ________________ (not do) much exercise since they got their computer. 5.Kobe Byrant _______________(win) five championships with The Los Angeles Lakers. 6.Fans___________________(buy)about 200 million copies of Tintin’s stories in more than 50 languages. 7.When I was young, I ___________(not like) green vegetables. 8.After he graduated from university, he _________(work) in a big company.
专项语法讲练——现在完成时 【概念引入】 如何学习时态？对中学生来说，最好还是从各个时态的基本概念、基本形式和基本用法学起。在过了这一阶段之后，再放开步伐，通过大量的听、读和笔头实践，获得感性的知识。现在，我们就从最基本的概念、形式和用法等方面来总结一种新的时态——现在完成时。 【用法讲解】 一、现在完成时的定义 现在完成时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。 二、现在完成时的构成 1. 肯定句 现在完成时的肯定句式是“have（has）＋过去分词”。 注意：该句式中的have或has是助动词，has用于第三人称单数，其它人称一律用have。 2. 否定句： 现在完成时的否定句式是“haven’t（hasn’t）＋过去分词”。 3. 疑问句： 现在完成时的一般疑问句式是把助动词have或has提到主语之前。回答用Yes, …have(has)./ No, …haven’t(hasn’t). 三、动词过去分词规则变化与不规则变化 (一) 规则变化 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 —looked 2. 以e结尾的动词，直接加d。move —moved 3. 以y结尾，y前面是辅音字母的动词，变y 为i，再加ed。carry —carried 4. 部分动词需双写尾字母，加ed。stop —stopped (二)不规则变化 不规则动词的变化因词而异。但是如果对不规则动词的过去式和过去分词做一分析，就可发现其中的“规则”。同学们在记忆时，可按下面的形式对教材后不规则动词表进行分析、整理。例如：AAB型 ABC 型 AAA型
现在完成时 现在完成时的构成： 现在完成时由助动词have\has + 过去分词构成，第三人称单数用has，其余用have。 I have been in Shenzhen for seven years. Lily hasn’t been to America before. 现在完成时的用法： 1）现在完成时通常表示在说话之前已经完成的动作或存在的状态。说话人强调的是该动作或状态对现在的结果或影响。 My daughter has just gone out. 我女儿刚出去。 I’m sure we’ve met before. 我肯定我们以前见过面。 She has arrived. 她到了。 2）表示持续到现在的动作或状态, for…, since…,yet等。如： I haven’t heard from her these days. 这些日子我没有收到她的信。 We haven’t s een you recently. 最近我们没有见到你。 They have been away for two years. 他们离开已经两年了。 She has been with us since Monday. xx现在完成时连用的时间状语： already, yet, before, lately, recently, once, twice, ever, never，since，for等连用。例如： I haven’t read it yet. 我还没读过这个。 They have nev er been to Yan’an. 他们从未去过xx。
I haven't seen him lately. 我近来没看到他。 She has been an independent girl since her father passed away. 自从父亲去世后，这女孩就变得独立了。 Jack has been a doctor for 10 years.杰克做医生已经10年了。 现在完成时的否定式和疑问句。 否定句：在have\has后加not结构：主语+has\have+not+过去分词+其他 一般疑问句：Has\Have提到主语前，其他照写。结构：Have\Has+主语+过去分词+其他 特殊疑问句：特殊疑问词+一般疑问句 注意：肯定句中如有some\and，在否定句或者一般疑问句中要变成 any\or，即 some-anyand-or 以study 为例，其否定式、疑问式和简单回答形式如下： 部分不规则变化动词表 6.注意： 1.since和for的区别 since后接过去的某个时间点，如1993，last term, yesterday, the time I got there for后接一段时间，表示“长达多久”，如ten years, a while, two days等。 Exercise: 用since和for填空 1. Jim has been in Ireland ______ Monday.
I have cleaned the classroom .（强调扫地所产生的结果：地干净了！） We have lived here for ten years.（“住”从过去持续到现在的动作用现在完成时） We have lived here since we came here.（“住”是从过去持续到现在的动作用现在完成时） Mr Green had lived in New York for ten years before he came to China.("来”中国已过去，而先前“住”在纽约更过去！）（另外注意：“住”在纽约可没有持续到现在！） We had learned 1000 words by the end of last term. （“上期期末”已过去，而是在其前“学”的就更过去了！） 一、从结构上区别 现在完成时： 主语 + have / has（not） + 过去分词 过去完成时： 主语 + had (not) + 过去分词 (二)从时间状语区别 现在完成时: 常用的时间状语包括“now, today, tonight, this week, this year, already, yet, just, recently…etc”。 过去完成时: 常用的时间状语包括“by, at, before等构成的短语”。 注意：当表示一段时间，现在完成时和过去完成时都可以用for 或since引导的状语。 例如： The meeting had begun when we got there. 我们到那儿时，会议已经开始了。 We had learned about 500English words when we were 6 years old. 我们六岁时就已经学了500个英语单词。
现在完成时和现在完成进行时的练习题 A. Correct the following sentences. （改错） 1. All these years they are contributing articles to our magazine. 2. I have been drinking five cups of coffee this afternoon. 3. What have you been doing before you left Oxford? 4. It's a good job. Have you done it all by yourself? 5. It's a long time since you come to see me. 6. Alice didn't see much of Henry lately. 7. I'm glad to tell you that you passed the exam. B. Complete the following sentences with the right form of the verbs given. 1. You know, I ________ (look) for a job for three months, and this is my first formal interview. 2. My sister ________ (stay) in Beijing for three months last year. 3. The little boy is dirty all over because he ________ (play) in the mud all the morning. 4. I ________ (wonder) if you were free this afternoon. 5. Here he is! We ________ (wait) anxiously for him since last night. C. Make the best choices. 1. — I’m sure Andrew will win the first prize in the final. — I think so. He ________ for it for months. (2008江苏) A. is preparing B. was preparing C. had been preparing D. has been preparing 2. By the time he realizes he _________ into a trap, it’ll be too late for him to do anything about it. (2008山东) A. walks B. walked C. has walked D. had walked 3. So far this year we _______ a fall in house prices by between 5 and 10 percent. A. saw B. see C. had seen D. have seen 4. Cathy is taking notes of the grammatical rules in class at Sunshine School, where she ______ English for a year. A. studies B. studied C. is studying D. has been studying 5. Danny _________ hard for long to realize his dream and now he is popular. A. works B. is working C. has worked D. had worked 6. —I have got a headache. —No wonder. You_________ in front of that computer too long. A. work B. are working C. have been working D. worked 7. The unemployment rate in this district_______ from 6% to 5% in the past two years. A. has fallen B. had fallen C. is falling D. was falling 8. Now that she is out of job, Lucy ___ going back to school，but she hasn’t decided yet. A. had considered B. has been considering
现在完成时 【概念引入】 欣赏含有现在完成时的名言： Life has taught me to think, but thinking has not taught me to live. 生活教会了我思考，但思考却没有教会我生活。 Winter must be cold for those with no warm memories. We have already missed the spring. 对于那些没有温馨回忆的人们来说，冬天一定很冷。我们已经错过春天了。 Nature has given us the seeds of knowledge, but not knowledge itself. 在自然赋予我们知识的种子，而非知识本身。 现在完成时的构成： 现在完成时是：助动词have（has）+过去分词构成的。 I have finished my homework. 我已经完成了作业。 现在完成时的否定句：是在助动词have(has)的后面加not构成。 I haven’t seen the film so far. 到目前为止，我还没有看那部电影。 现在完成时的一般疑问句：是把助动词have(has)提到句子主语的前面。 Have you seen the film yet? 你看过那部电影了吗？ 【用法讲解】 一、现在完成时的定义及用法（1） 表示过去发生的某一动作对现在造成的影响或结果。 I have just cleaned my clothes. 我刚洗过衣服。 （“洗衣服”是发生在过去的动作，对现在造成的结果是“衣服干净了”） Have you read that story？你读过那个故事吗？ （“读”这一动作发生在过去，对现在造成的影响是：是否知道故事的内容。） 在学习这一概念的同时，还应注意常与现在完成时连用的几个副词：already，just，ever，yet，never等。already，just多用于肯定句中，ever，yet，never多用于疑问句和否定句中。 I have already finished my homework. 我已经做完家庭作业了。 He has just had his meal. 他刚吃过饭。 Have you ever sung this English song？你曾唱过这首英文歌吗？ They haven’t started yet．他们还没有动身。 We have never heard of it．我们从来没有听说过这件事。 二、现在完成时的定义及用法（2） 表示过去已经开始，持续到现在的动作或状态，也可以表示实质可能继续下去的动作或状态。这时往往与表示一段的时间状语连用。
一般过去时态和现在完成时态的区别练习题 1）一般过去时态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；现在完成时态中动作为过去发生的，强调过去的事情对现在的影响，强调的是影响。如:I saw this film yesterday. （强调看的动作发生过了） I have already seen this film.（强调对现在的影响，电影的内容已经知了） I haven’t finished my work yet. (强调对现在的影响，还有工作要做，不能去玩) When did you finish your homework? (询问过去的动作所发生的时间，与现在无关) 2）一般过去时态表示动作在过去已经停止；现在完成时态表 示过去开始的动作一直延续到现在。 如：Ann visited her uncle last weekend.(visit这个动作在过去已经停止) They have lived here since 1983. (live here 这个动作从1983年开始，一直延续到现在) 3）一般过去时态常用非延续性动词，如borrow, buy, come, go, leave, start, die, finish, become等。现在完成时态可表示持续到现在的动作或状态，与时间段连用时动词一般是延续性的，如keep, have, live, teach, learn, work, study, know, be等。如：He joined the League three years ago .(join 是短暂动词）
He has been in the League for three years.（be in表状态，在团内的状态可延续） He has been a League member for three years. （是团员的状态可延续） 4）一般过去时态常与具体的时间状语连用，而现在完成时态通常与模糊的时间状语连用，或无时间状语。 一般过去时态的时间状语：yesterday, last night/week/month/year…，…ago, in1980, just now等，皆为具体的时间状语. 现在完成时态的时间状语：for+时间段, since+过去的时间点/一般过去时态的句子, so far, , up to now, in the past ....years, 等，皆为不确定的时间状语。如：Tim wrote a letter to his brother last night. （last night 为具体的过去时间状语，所以用一般过去时态） I’ve learned English for three years . （for three years为时间状语，是个时间段，时间跨度大，不具体） 学以致用 1．——When _____ you _____ to learn to skate? ----Five years ago.