现在完成时
8B Unit1-3 Grammar 现在完成时
一、现在完成时的构成：
助动词have/has + 动词的过去分词
动词的过去分词的构成：
1.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;
例：1.stay-stayed-stayed 2.love-loved-loved
3.study-studied-studied
4.plan-planned-planned
2.不规则变化的过去分词见P.122-123的不规则动词表，需要同学记忆。
不规则动词的构成剖析：
1）AAA型(三种都一样)
如：cost cost cost cut cut cut
hurt hurt hurt shut shut shut
set set set
2）ABB型(过去式与过去分词相同)
如: bring-brought-brought
catch caught caught
lead led led
3）ABC型(三种都不一样)
如：begin-began-begun
grow grew grown
break broke broken
ring rang rung
4）ABA型(原形与过去分词相同)
如: come-came-come
become became become
run ran run
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 has seen the film.
否定句：I/You/We/They have not/ haven’t seen the film.
He/ She 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.
二、现在完成时的用法：现在完成时既涉及过去，又联系现在。
用法一：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），recently(近来), before（以前），yet（还；已经），once（一次），twice（两次），many times（很多次），how many times（多少次）。
副词的位置：
①just（刚刚）常用于肯定句中，放在have / has后，
I have just seen Daniel .
②ever（曾经）常用于疑问句中, 放在句中，
Have you ever watched this film？No, never
③never（从不）表示否定, 放在have / has后,
I have never read this story.
④before（以前）用于句末，
The woman has never heard of that before.
⑤already（已经）用于肯定句, 位于句中或句末.
I have already done my homework.
注意：有already的句子在时态上并不都是现在完成时,判断时要看该词后是否有动词的过去分词.
Eg. She’s already eighty years old.
It was already very late.
⑥yet （已经；还）用于否定句及一般疑问句，位于句末
I have not heard from her yet（还）.
Has the train arrived yet(已经)? No, not yet.
⑦recently（近来）常用于句末，I have been busy recently.
用法二：2.表示过去发生并持续到现在的动作或状态，多是延续性动词。对应的时间状语有：①for + 一段时间；②since + 过去的点时间/ 从句（从句一定用一般过去时）/ doing；③all one’s life, so far, since then, ever since, in/over/during the past/last few years/weeks(近几年来)/…对这三种时间状语提问都是用How long
①for＋一段时间：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.
I have known him since 20 years ago.
③since＋一般过去时状语从句：I have lived here since I was born.
④since＋doing: He has lived in Beijing since coming to China
= He has lived in Beijing since he came to China
三．现在完成时与一般过去时的区别
一般过去时和现在完成时的动作都发生在过去,但意义却不同.
（1）一般过去时只表示过去的动作或状态,和现在不发生关系。
现在完成时表示过去发生的某一动作对现在造成的影响,强调的是现在。
如:I learned ten English songs（说明过去学过,现在是否记得,不是本句的内容）
I have learnt ten English songs.（learn发生在过去,但强调我现在懂英语歌曲）
I cleaned the blackboard half an hour ago.（只说明“擦”黑板发生的时间）
I have cleaned the blackboard.（说明现在黑板是干净的）
The teacher has written some new words on the blackboard（黑板上现在有单词）
The teacher wrote some new words on the blackboard（黑板上现在没有单词）
（2）一般过去时可以和表示过去的时间状语连用,如:yesterday, last year, three days ago, just now, 等。现在完成时不能和表示过去的时间状语连用,其时间状语可以是since…,for…, just, ever, never, before, already, yet , so far, all one’s life
现在完成时强调某一动作与现在有关，如：对现在造成影响，一直持续到现在等等，它不考虑是何时发生的，所以它不能与明确的过去时间连用。即，如果句中有明确的过去时间，则一定是用一般过去时，一定不能用现在完成时！
如：He has lived here since 1995. 1995年以来他一直住在这里的。（现在还在）
He lived here in 1995. 他1995年住在这里的。（不涉及他现在是否还住在这里）
四、英语中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”，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，如
I haven’t heard from my father for a long time. We haven’t seen him since 1999.
五、当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 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.(错) 改为:Twenty years has passed since he left home. He has lost his pen for 2 days.（错）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.（错）改为: He has been dead for 20 years.
The factory has opened since 1999.（错）改为:The factory has been open since 1999. How long has he left? （错）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.（错）改为:He has had the book for two weeks. ★常见的相应转换形式如下:
1. buy→have
2. borrow / lend→keep
3. arrive / reach /get to /→be in /at
4. leave→be away（from）
5. join→be in / be a member of
6. die→be dead
7. get married→be married
8. come / go→be in /at
9.begin / start→be on
10. stop/finish / end→be over 11. move →be in /at
12. open→be open
13. close→be closed
14. lose→be lost
15. become→be
16. get up→be up
17. fall asleep→be asleep
18. fall ill→be ill
19. get to know→know
20. go out →be out
21. receive / get a letter→have a letter
22. catch / get a cold→have a cold
23. begin to study→study
24.turn …on/off →be…on/ off
25.make friends→be friends
26. become interested in→be interested in
27 go to school→be in school / be a student
28. return / come back / get back/go back→be back
29. join the army→be in the army /be a soldier
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.
（1）He came to our village two years ago.=He our village since two years ago.
（2）He left home three days ago=He home for 3 days. （3）I bought the watch 2 weeks ago=I the watch since 2 weeks ago. （4）It is 5 days since I borrowed the book=I the book for 5 days. （5）The film has begun= The film for half an hour.
（6）I got to know him 10 years ago=I him for 10 years.
（7）There is a factory=There a factory for 20 years.
（8）Our school opened in 1960=Our school since 1960.
六.、have been to ，have gone to和have been in/ at的区别
A) have been to 强调“去过某地”，现已不在那里，强调人“已回到原地”，句中可带ever，后面也可接表示“次数”的状语.如：
1）He has been to the USA three times.
他到美国去过三次。（过去“到美国”，现在已“不在美国”）
2）-How many times has he been there? --He's been there many times.
3）My brother has ever been to Japan.
B) have gone to主要强调的是“去了某地”，现在人不在说话的现场，如：
--Where's your mother? --你妈妈在哪？
--She has gone to the hospital. --她去医院了。
C) have been in/ at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。
eg. ①They have been at the bus stop for half an hour.他们在车站呆了半小时。（现在仍然在车站）
②We have been in Xi'an since two weeks ago.
我们在西安呆了两个多星期。（现仍在西安）
③How long have they been in China?
他们在中国呆了多长时间了？（仍在中国）
注意：当后面跟地点是副词（here，there, home, abroad）时，介词(to, in, at)省
略
e.g 1)How many times have you been there?
2)Miss Gao has been here since last month.
3)Beijing is a beautiful city. Mr Wu has gone there for a holiday.
4）Have you ever been abroad? 5)--Where is he? --He has gone abroad.
4
一般过去时与现在完成时的用法区别
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。
现在完成时练习题及答案
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：
一般过去时-现在完成时和过去完成时
一般过去时，现在完成时和过去完成时 一般过去时态表示过去某个时间发生的动作或存在的状态，常和表示过去的时间状语连用，也表示过去经常或反复发生的动作，常和表示频度的时间状语连用，试看下列例句： 1. I was in the classroom yesterday morning 2. My father was at work last week. 3. I visited the Palace Museum three weeks ago. 4. He always went to work by bus last year. 5. I wrote home once a week at college. 1. yesterday或以其构成的短语：yesterday morning(afternoon, evening)等； 2. 由"last+一时间名词"构成的短语：last night, last year (winter, month, week)等； 3. 由"时间段+ago"构成的短语：a moment ago, a short time ago, an hour ago等； 4. 其它：just now或者由句子本身的时态所反映出来的。 现在完成时表示：(1)过去发生或已经完成的动作对现在造成的影响或结果, 常与already，just，yet，before，ever，never 等副词连用；(2)发生在过去某一时刻的,持续到现在的动作（用行为动词表示）或状态（be动词表示），常与for（+时间段），since（+时间点或过去时的句子）连用。试看下列例句： 1.My father has brought many books for me , so I can do some reading now. 2.I have already finished my homework, so I can give it to my teacher now. 3.Kevin hasn't seen the film yet, so he has nothing to say about the film. 4.This is the best film I have ever seen. 5.Mary has been ill for three days. 6.I have lived here since 1998. 现在完成时不能和表示过去的时间状语连用，如yesterday, last year, two days ago, just now 等等，但可以和already, yet, sometimes, always, before, recently,ever, never等连用。
现在完成时和过去时的区别及练习
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.
现在完成时和一般过去时专项练习
现在完成时和一般过去时专项练习 一、用所给单词的正确形式填空。 1.--_____ you _____ (have) lunch yet? ---Yes，I . --- When____ you _____ (have) it? ---I______ (have) it at 12:00. 2._____ she _____(write) a letter to her aunt yet? Yes, she_____ . She__________ (write)it the day before yesterday 3. --______ you____ (find) your knife yet? ---Not yet. 4. I _________(sing) the English song before. 5. I ____ never _____(see) him before. 6.. She_____ just _____(ride) a horse? 7. Tom with his mother _________(shop)just now. . 8. Sam ________ (go) to school by bike last year. 9.My brother _______(join) the army in 1999. 10.My brother _______(be)in the army since1999. 11.John_________( not watch ) TV last night. 12.She ______ (do) her homework already. 13.Where is Jack? He______(go) the park. 14. I _________ (read) the magazine yesterday. 15.What was she doing when she __ (come) here. 16.We_______ (play) football five hours ago. 17..Mike ______ already ______(finish) the work. 18. We ___________(run) out of money. What shall we do? 19. I _____ just ______ (lose) my math book. 20. I ___ _ (be) to Beijing twice 21.My father _____ never____(eat)ice cream. 22.I __________(work) here since 1995. 23.The_______(teach) English since they (come) to this school. 24.We __________(learn) 1000 words so far. 25. Tom ____________( be) away for three days. He will come back tomorrow. 26.The teacher _________(leave) two days ago. 27.The teacher______(be) here since two days ago. 28.--- _____ you ______ (clean) the room yet? --Yes, we __________ (do) that already. --When _______ you ______ (do) it? ---We _______ (do) it an hour ago. 29. ---______ he ______ (see) this film yet? --Yes,he _____. --When _____ he _____ (see) it? --He ____ it last week. 30. I _________ (read) the book twice. It’s interesting. 31—Where’s she? .-- She ________ (go) to Pairs. -- How ______she ______(go) there? --She _______ (go) there by air. 32. So far, many countries ___ _ (improve) their environment. 33. Mr Chen _____ (give)up smoking last year. 34. Mr Chen ______ (give) up smoking since last year. 35.It’s ten years since I ________(meet) her. 36.This is the most interesting book that I_________(read). 37.She _________(work) in this hospital in 2005. 38. She _________(work) in this hospital since 2005. 39.I __________ (clean) my room two hours ago. 40. I ________(clean) my room since two hours ago. 41 The old men ____________ (live)in the house for ten years. 42. Mum is not at home now. She _______ (go) the shop. 43.The sun ________(rise) since five o’clock. 44.I’m sorry I’ve already_______(forget) your name. 45.My leg _______(hurt) a lot last night. 46.They ________(eat) a lot of chichen already. 47.--- he ______ (give) the book back to the library? --Not yet. 48.My uncle _______(teach) English for ten years. He loves his job. 49.I ________(spend) five hours watching TV last weekend. 50.He’s just _______(tell) us a story. 二、按要求变换句型。 1.I have already eaten the food.(否定句) 2..We have ever read this book. .(否定句) 3.The plane has arrived. (否定句) 4. She’s lent some money to others. (否定句) 5. She has already visited her aunt.（一般疑问句并肯定回答） 6..My father has already hadlunch. （一般问句并否
现在完成时和过去完成时的区别
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。
一般过去时与现在完成时和过去完成时的比较
①一般过去时的基本用法 a)表示过去某个特定时间发生的动作或存在的状态。常与过去时间连用. a moment ago(刚才)，yesterday morning，last night/ week，the day before yesterday(前天)，just now(刚才)等。 He suddenly fell ill yesterday. 昨天他突然生病了。 b)表示过去经常发生的动作或存在的状态。 I wrote home once a week at college. 我上大学时每周给家里写一封信. c)表示过去连续发生的一系列动作。 She entered the room, picked up a magazine and looked through it carefully. 她走进房间，拿起一本杂志，认真地翻阅了起来。 d)在时间、条件状语从句中用一般过去时代替过去将来时. We would not leave until the teacher came back. 老师回来我们才会离开。 ②一般过去时的特殊用法 a)在虚拟语气中表示现在或将来时间的动作或状态。 I wish I were twenty years younger. 但愿我年轻20岁。 b)在口语中，一般过去时往往显示委婉客气 Might I come and see you tonight? 我想今晚来看你，好吗？ 现在完成时的用法: 1) 表示过去发生或已完成的某个动作对现在产生的影响或结果，强调的是这个影响或结果，一般不与过去时间连用，常同already, just, yet等状语连用例：I have just turned off the light. 我刚刚把灯关上。（结果是灯已经关上了） She has lost her bike. 她把自行车丢了。（影响是他现在没有自行车骑了） 2) 表示开始于过去、持续到现在的动作或状态，并可能继续下去（也可能不继续下去），常同包括现在在内的时间状语连，也同“for+时间段”或“since＋时间点”的状语连用 She has taught in the school for ten years. 她在这所学校教书已经10年了。 I haven’t eaten anything since breakfast. 我从早饭起就一直没有吃东西。
初中现在完成时练习题及答案.docx
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.
一般过去时和现在完成时用法区别(详细点)
一般过去时和现在完成时用法区别（详细点） 1) 经常性或习惯性的动作，常与表示频腮度的时间状语连用。时间状语：every…, sometimes, at…, on Sunday I leave home for school at 7 every morning. 2) 客观真理，客观存在，科学事实。 The earth moves around the sun. 不受时间限制的 Shanghai lies in the east of China. 客观存在 表示格言或警句中。 Pride goes before a fall. 骄者必败。 注意：此用法如果出现在宾语从句中，即使主句是过去时，从句谓语也要用一般现在时。 例：Columbus proved that the earth is round.. 3) 现在时刻的状态、能力、性格、个性、特征。 I don't want so much. Ann Wang writes good English but does not speak well. 比较：Now I put the sugar in the cup. I am doing my homework now. ※4)由连词if unless before as soon as when once however 等引起的时间(条件、让步)状语从句,需要用一般现在时,表示将来时. 第一句用一般现在时，用于操作演示或指导说明的示范性动作，表示言行的瞬间动作。再如：Now watch me, I switch on the current and stand back. 第二句中的now是进行时的标志，表示正在进行的动作的客观状况，所以后句用一般现在时。 现在完成时用法解析 1.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.用法 （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
现在完成时和一般过去时
现在完成时专项练习 一、用since和for填空 1______ two years 2_______ two years ago 3_______lastmonth 4______1999 5 _______ yesterday 6 _______ 4 o’clock 7 ______ 4 hours 8_______ an hour ago 9_______ we were children 10 _____ lunch time 11 ______ she left here 12. He has lived in Nanjing ________ the year before last. 13. I’ve known him __________ we were children. 14. Our teacher has studied Japanese _________ three years. 15. She has been away from the city ___________ about ten years. 16 It’s about ten years __________ she left the city. 17 How long have you been here?-______ half past three. 18How long has that car been here?-______ yesterday. 19 How long have you been in this school?-______ four years. 20 How long has that boy been in your class?-______ six weeks. 21 How long have you lived here?-______ 1996 二、用have(has) been、have(has) gone 、have/has been to/in, have gone to填空。 1、A: Where ____________ Li Fei ___________? B: He ____________ to Hainan Island. A: How long ___________ he ___________ there? B: He _____________ there for three days. A: When will he come back , do you know? B: I’m afraid he won’t come back recently. A: Could you tell me the way to Hainan Island? B: Sorry, I _________ never ___________ there. A: How many times ___________ Li Fei __________ to that place? B: He _____________ there only once. 2、Where is Jack? He __________ his country. John _______ England since he came back. How long _____ he _____ this village? The Smiths ______ Beijing for years. _____ you ever ____ America? -- Yes, I _____ there many times. I _____ this school since three years ago. 三、选择填空
现在完成时与一般过去时专项练习
现在完成时与一般过去时专项练习 每日一句 God helps those who help themselves. Review 单项选择题 1.Mother _____ me a new coat yesterday. I _______ it on. It fits me well. A. had made…have tried B. made…have tried C. has made…tried D. made…tried 2 “He ____to draw horses already”. “When ______ he ?” “ Last year “ A. learned...has B. learned (i) C. has learned...has D. has learned (i) 3.Tom _____up into the tree. Look, he ____ high up there ! A. has got…is B. has climbed…was C. got …was D. climbed…is 4.____ you _____ the text yet ? Yes, we ____ it two hours ago. A. Did…copy…did B. Have…copied…have C. Have…copied…did D. Did …copy…had 5. “Why ______ she _______ angry ?” “Because he _____ at her just now .” A. did…get…shouted B. has…got…shouted C. di d…get…has shouted D. has…got…has shouted 6. ______you __________ the film before ? Where _____ you ____ it ? A. Have …seen…did…see B. Did …see…did…watch C. Have…seen…have…seen D. Did …see…have…seen 7.You ____ me waiting for two hours. I ____ for you since five. A. kept…waited B. have kept…waited C. kept…have waited D. have kept…have waited 8.Where ______ John _______ ? To the library. He _________ there for an hour. A.has…been…has gone B. has…gone…has been C. did…go…went D. did…be…went 9.______ the baby still _____ ? No, it _______ crying. A. Has…cried…has stopped B. Is…crying…stopped C. Did …cry…stopped D. Is…crying…has stopped 10. I _______ the way. I ________ here for quite many years. A. knew...have lived B. kne w (iv) C. know...have lived D. know (iv) Summary 现在完成时与一般过去时的比较 （一）一般过去时态和现在完成时态的概念 一般过去时表示在过去某个时间发生的动作或存在的状态，也表示过去经常或反复发生的动作常与yesterday, yesterday afternoon, last year, in 1965, a moment ago等表示过去的时间状语连用, 例如： He came here yesterday. 现在完成时表示过去的动作（或状态）对现在产生的_________, 例如： He has broken his bottle.
一般过去时态和现在完成时态的区别练习题
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.
一般过去时与现在完成时
一般过去时 1．一般过去时表示过去某个时间发生的动作或存在的状态，常和表示过去的时间状语连用。一般过去时也表示过去经常或反复发生的动作。 2．Be动词在一般过去时中的变化： ⑴am 和is在一般过去时中变为was。（was not=wasn’t） ⑵are在一般过去时中变为were。（were not=weren’t） ⑶带有was或were的句子，其否定、疑问的变化和is, am, are一样，即否定句在was或were 后加not，一般疑问句把was或were调到句首。 3．句中没有be动词的一般过去时的句子 否定句：didn’t +动词原形，如：Jim didn’t go home yesterday. 一般疑问句：在句首加did，句子中的动词过去式变回原形。如：Did Jim go home yesterday? 特殊疑问句：⑴疑问词+did+主语+动词原形？如：What did Jim do yesterday? ⑵疑问词当主语时：疑问词+动词过去式？如：Who went to home yesterday? 动词过去式变化规则： 1．一般在动词末尾加-ed，如：pull-pulled, cook-cooked 2．结尾是e加d，如：taste-tasted 3．末尾只有一个元音字母和一个辅音字母的重读闭音节，应双写末尾的辅音字母，再加-ed，如：stop-stopped 4．以“辅音字母+y”结尾的，变y为i，再加-ed，如：study-studied 5．不规则动词过去式：am,is-was, are-were, do-did, see-saw, say-said, give-gave, get-got, go-went, come-came, have-had, eat-ate, take-took, run-ran, sing-sang, put-put, make-made, read-read, write-wrote, draw-drew, drink-drank, fly-flew, ride-rode, speak-spoke, sweep-swept, swim-swam, sit-sat 现在完成时： 基本结构：主语+have/has+过去分词(done) ①肯定句：主语+have/has+过去分词+其他 ②否定句：主语+have/has+not+过去分词+其他 ③一般疑问句：Have/Has+主语+过去分词+其他 ④特殊疑问句：特殊疑问词+一般疑问句（have/has+主语+过去分词+其他） （1）现在完成时用来表示现在之前已发生过或完成的动作或状态,但其结果却和现在有联系,也就是说,动作或状态发生在过去但它的影响现在还存在. I have spent all of my money.(含义是:现在我没有钱花了.) Jane has laid the table.(含义是:现在桌子已经摆好了.) Michael has been ill.(含义是:现在仍然很虚弱) He has returned from abroad. (含义是:现在已在此地) （2）现在完成时可以用来表示发生在过去某一时刻的,持续到现在的动作（用行为动词表示）或状态（be动词表示）常与for（+时间段）,since（+时间点或过去时的句子）连用. Mary has been ill for three days. I have lived here since 1998. 注：瞬间动词（buy,die,join,lose……）不能直接与for since 连用。要改变动词 come-be go out-be out finish-be over open-be open die-be dead …… a）1.have代替buy