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现在完成时与过去完成时讲解

现在完成时与过去完成时讲解
现在完成时与过去完成时讲解

现在完成时

1.现在完成时态表示过去发生的动作对现在造成的影响或结果。本时态标志词:

already (―已经‖,用于肯定句中,放在have /has之后或句尾);

yet (―仍然‖―还‖,用于疑问句或否定句的句尾)

just(―刚刚‖,放在have /has之后);

before(―以前‖,放在句尾);

ever(―曾经‖,放在have /has之后)

never (―从没有‖,在have /has之后)

例句:

1.Our teacher has just left.

2.We have studied English already.

3.I have not finished the homework yet.

4.He has never been to Beijing before.

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)

The rain has stopped now.雨已经停了。(结果是我们可以出门了)

I have already read the book.我已读过这本书了。(结果是已知道这本书的内容)

She has had a good education.她受到过良好的教育。(影响是她文化水平高,有修养)

2.某个动作从过去已经开始,一直持续到现在,还有可能持续到将来.(也可能不继续下去),常同包括现在在内的时间状语连用,如:

today, now, this week, this morning, these days, this afternoon, recently, so far等

动作的持续性要通过一段时间来表示一段时间的表达方法有两种:

for: +一段时间for a year for two weeks for three years

Since +过去的某一时刻, since nine since last week

Since +一般过去时态的时间状语从句since you came ; since you got hom e.

例:We have had much snow this winter. 今年冬天多雪。

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。

We have been busy this morning.今天上午我们一直很忙。

I have known her since we were children.我从小就认识她。

I haven't seen John today.我今天没有见到约翰。

It has rained a lot these days.这些天多雨。

注意:结束性动词不能和表示一段时间的时间状语连用,但是它们可以转换成相应的延续性动词.

1.直接用延续性动词

buy– have;catch(get) a cold –have a cold;borrow—keep;become—be;put on-- wear

2.转换成be+名词

join the army – be a soldier;join the Party –be a Party member;

go to school– be a student

3转换成be+形容词或副词

die—be dead;finish – be over;begin—be on;leave—be away ;fall sleep – be asleep close – be closed come to/ go to/arrive at(in)+某地—be in(at) +某地

4.转换成be+介词短语go to school– be in school ;get up_ be up;

) 表示从过去某一时间到说话时这段时间中反复发生的动作或多次动作的总和,常同频度副词always, often, seldom, never等连用

例:He has done a lot of work in the past two years. 在过去两年中他做了许多工作。

I have learned about two hundred English words this morning.本月我学了大约200个英语单词。

I have been to the Great Wall twice.我曾经去过长城两次

It has rained every day this week.这个星期天天下雨。

She has always walked to school.她一直步行去学校。

I have never seen such a beautiful bird.我从没见过这么美丽的鸟。

I have often met the old man on my way to work.我在上班的路上常常遇见那位老人。

4) 现在完成时与一般过去时的区别

1.现在完成时强调过去发生的动作对现在的影响和结果,而一般过去时与现在没有联系,只是说明某个动作发生的时间是在过去。

比:I have washed the car. 我洗过了车。(看上去很漂亮)

I washed the car a moment ago.我刚才洗过车了。

She has watered the flowers.她已经浇了花。(不需要再浇了)

She watered the flowers yesterday.她昨天浇的花。

I have written the letter but I haven't posted it yet. 信我已经写好了,但还没有寄出。

I wrote the letter last week and I posted it three days ago.我上周写的那封信,3天前寄出的。2.现在完成时表示的动作或状态延续到现在并可能延续下去,而一般过去时则单纯表示过去某段时间内的经历。

比:It has rained for five hours. 雨已经下了5个小时了。

It rained for live hours yesterday.昨天下了5个小时的雨。

He has waited for her for two hours. 他等她已经两个小时了。

He waited for her two hours and then went home.他等她等了两个小时,然后就回家了。

I have reviewed two lessons this morning.今天上午我已经复习了两课。(说话时还在上午)I reviewed two lessons this morning.今天上午我复习了两课。(说话时已是下午或晚上)3.现在完成时与一般过去时的时间状语不同现在完成时时间标志词:

现在完成时态常见标志词

1.already(已经), just(刚刚), never(从未/从没有), ever(曾经), yet(仍然/还), before

(以前(句尾时)

2.since+点时刻或从句; for+段时间; how long(疑问句中用来提问since/for短语的)

3.so far;till now;by now(到目前为止;迄今)

4.recently近来in the past/last+段时间在过去的几年中

5.once(一次),twice,three(four…) times

6.It is the+最高级+n.+ (that) sb.have ever done

专项练习:

一、单选

1 You have _____ a tall young man.

A grown

B grown into

C grown us

D grown up

2 He has ____ the watch for a year.

A buy

B bought

C have

D had

3 Has your brother _____ the dog?

A kept in

B fed

C fed on

D kept on

4I _____this book for two weeks, I have to return it now.

A borrowed

B have borrowed

C kept

D have kept

5 Have you ever _____to the Great Wall? It's very beautiful.

A gone

B been

C went

D go

6 Her brother _____the Party since 1978.

A joined

B has joined

C has been in

D was in

7 The Greens _____many places of interest since they came to China.

A will visit

B visited

C have visited

D visit

8 I'm sorry, I ____ your name.

A had forgotten

B forgot

C have forgotten

D forgotten

9 The bookshop _____ for eight years.

A has been open

B has been opened Chas opened D has open

10 We have all the paper so we need to buy some.

A used up

B made of

C filled with

D hunted for

11 The flower I ____grown up.

A planted has

B planted have

C has planted

D have planted

二、填空

1 Have you ever ______(take) a train?

2 It _________(be ) more than three years since Jim ______(leave) here.

3 Have you _____(make)friends with your new classmates yet?

4 I _______(have) my lunch and I'm not hungry now.

5 Jim has never seen a panda, _____he?

6 We ______(be) good friends since we met at school.

7 We can't find him anywhere. Perhaps he______(go) home.

8 He _____(read) the book before.

9 Mr. Green _____(teach) us a lot about social studies since September.

10 I _____never____ (meet) her sister before.

四、have been to与have gone to 易弄混

例:我去过北京。

I have gone to Beijing.

答案:I have been to Beijing.

解析:"have been to+地点" 是表示曾去过某地,但此刻不在那儿(即在说话的地方)。而"have gone to+地点" 是表示去某地了,此刻在路上或已经到了那个地方(即不在说话的地方)。注意:这两个句式后接副词时,需省to。E.g. He has gone there.

五、忘记把already变成yet

例:I have already finished my homework.(变一般疑问句)

Have you already finished your homework?

答案:Have you finished your homework yet?

解析:现在完成时态中,肯定句中有already,变否定句或疑问句时通常要改为yet.

六、在条件、时间状语从句中用一般现在时表示将来

例:I'll go with you when I finish(finish) my homework.

答案:have finished

解析:在条件、时间状语从句中表示将来完成的动作,用现在完成时。但注意,此时表示这动作将在另一动作之前完成,若两动作同时发生,或几乎同时发生,则一般不用现在完成时。

另外,现在完成时易与一般过去时弄混,前边已经讲过,这里不在重复.

一语法

1.Past perfect Tense 过去完成时

(1) 构成:由助动词had + 过去分词构成

否定式:had not + 过去分词缩写形式:hadn’t

(2) 用法过去完成时表示在过去某一时间或动作之前已经发生或完成了的动作。

(3) 它所表示的时间是“过去的过去”。

①表示过去某一时间可用by, before 等构成的短语来表示

②也可以用when, before, after等引导的时间状语从句来表示

③还可以通过宾语从句或通过上下文暗示。

When I got there, you had already eaten you meal. 当我到达那里时,你已经开始吃了。

By the time he got here, the bus had left. 到他到达这里时,汽车已经离开了

过去完成时过去完成时表示在过去某一时间或动作之前已经发生或完成了的动作。

它表示句子中描述的动作发生在―过去的过去‖。

具体如下:

过去完成时的基本用法

(1)表示在过去某一时刻或动作以前完成了的动作,即―过去的过去‖。可以用by,

before等介词短语或一个时间状语从句来表示,也可以用一个表示过去的动作来表示,还可能通过上下文来表示。例如:

By nine o’clo ck last night, we had got 200 pictures from the

spaceship.到昨晚9点钟,我们已经收到200 张飞船发来的图片。

(2)表示由过去的某一时刻开始,一直延续到过去另一时间的动作或状态,常和for, since 构成的时间状语连用。例如:

I had been at the bus stop for 20 minutes when a bus finally

came.当车来的时候,我在车站已等了20分钟。

He said he had worked in that factory since 1949.他说自从1949年以来他就在那家工厂工作。(3)叙述过去发生的事情,在已叙述了过去发生的事情后,反过来追述或补述以前发生的动作时,常使用过去完成时。例如:

Mr. Smith died yesterday. He had been a good friend of

mine.史密斯先生昨天去世了。他以前是我的好友。

I didn’t know a thing about the verbs, for I had not studied my

lesson.我对动词一无所知,因为我没有好好学习功课。

(4)在含有定语从句的主从复合句中,如果叙述的是过去的事,先发生的动作常用过去完成时。例如:

I returned the book that I had borrowed.我已归还了我借的书。

She found the key that she had lost.她丢失的钥匙找到了。

(5)过去完成时常常用在宾语从句(或间接引语)中,这时从句中的动作发生在主句表示的过去的动作之前。例如:

He said that he had known her well.他说他很熟悉她。

I thought I had sent the letter a week before. 我认为我一星期前就把信寄出去了。

(6)在包含有when,

until等连词的复合句中,如果主句谓语动词和从句谓语动词所表示的过去动作不是同时发生的,那么先发生的动作通常用过去完成时表示。例如:

When I woke up, it had already stopped raining.我醒来时雨已停了。

She didn’t go to bed until s he had finished he work.她直到把工作做完之后才睡觉。

注意:如果两个动作紧接着发生,则常常不用过去完成时,特别是在包含before和after的复合句中,因为这时从句的动作和主句的动作发生的先后顺序已经非常明确,这时可以用一般过去时代替过去完成时。例如:

After he arrived in England, Marx worked hard to improve his

English.马克思到达英格兰之后,努力提高他的英语水平。

(7)动词think, want, hope, mean, plan,

intend等用过去完成时来表示过去未曾实现的想法,希望,打算或意图等。例如:

They had wanted to help but could not get there in

time.他们本来打算去帮忙,但没有及时赶到那里。

We had hoped to be able to come and see you .我们本来希望能来看看你。

(8)过去完成时还可用在hardly…when…, no sooner…than…, It was the first (second, etc) time (that)…等固定句型中。例如:

Hardly had he began to speak when the audience interrupted

him.他刚开始演讲,听众就打断了他。

No sooner had he arrived than he went away again.他刚到就又走了。

It was the third time that he had been out of work that year.这是他那一年第三次失业了。

即:过去完成时

1)概念:表示过去的过去

----|-------|-----|---->其构成是had +过去分词构成。

那时以前那时现在

2)用法

a. 在told, said, knew, heard, thought等动词后的宾语从句。

She said (that) she had never been to Paris.

b. 状语从句

在过去不同时间发生的两个动作中,发生在先,用过去完成时;发生在后,用一般过去时。When the police arrived, the thieves had run away.

c. 表示意向的动词,如hope, wish, expect, think, intend, mean, suppose等,用过去完成时表示"原本…,未能…"

We had hoped that you would come, but you didn't.

3) 过去完成时的时间状语before, by, until , when, after, once, as soon as。

He said that he had learned some English before.

By the time he was twelve, Edison had began to make a living by himself.

Tom was disappointed that most of the guests had left when he arrived at the party.

专项练习:

一、单选

1 When Li Ming hurried home, he found that his mother ____already____to hospital.

A has; been sent

B had; sent

C has; sent

D had; been sent

2 We ____five English songs by the end of last term.

A had learned

B learned

C have learned

D will have learned

3 Han Mei told me she _____lunch, so she was very hungry.

A has had

B hasn't have

C have had

D hadn't had

4 By the end of 1976, many buildings _____built in the city.

A have been

B have

C had been

D will

5 She _____her keys in the office so she had to wait until her husband ____home.

A has left; comes

B had left; would come

C had left; came

D left; had come

6 He said that it was at least ten years since I _____a good drink.

A had enjoyed

B was enjoying

C have enjoyed

D have been enjoying

7 The meeting _____when Mr. Wang _____to school.

A has begun; get

B has been on; get

C had begun; got

D had been on; got

二、填空

1 When I returned home, he _____ (leave).

2 By ten yesterday evening, she ________(finish)writing.

3 He ______ (study) English for five years before he came here.

4 It ____ _____ (stop) raining when I wake up this morning.

5 I _____ (not read) the book because I had read it before.

6 She said she____ (be) born in 1992.

7 When he _____(come) to China two years ago he found people didn't understand him at all though he ________(learn) some Chinese in his own country.

8 I saw Han Mei yesterday. We _____(not see) each other since left Beijing.

9 When I got to his home, he_____(go) to bed.

10 She asked if Mr. Liu _____ already _____(come) back.

(完整版)英语lie,lie,lay精讲与详细解析,附题目和题目详解

巧记初中英语单词lie lay及专题突破 lie lay (位于.躺.放.产卵.撒谎)的过去式及过去分词 lie 详细用法>> 英[la?] v. 躺;坐落在;处于…状态;说谎 n. 谎言;谎话;状态;位置 [例句] That's a lie! 你说谎! ? lie躺,平放,位于(vi.) 一个人躺着总得翻身换姿势所以有各种词形变化。。。 (一个人累了就想躺着,所以过去是累呀,n个累.lay-lain) lie说谎(vi.) 撒谎一般不露声色所以不变。。。。 (撒个谎就过去了的,所以最简单,过去式及分词一样laid) Lay 放(vt.),下蛋(vi.&vt.) 下蛋本身就是累过去挺累的,到现在只是累. 然后就懒了(laid)根据汉语拼音自己找感觉哈哈希望有所帮助. 专项习题集 lie位于,躺-lay-lain; lie说谎-lied -lied; lay 放置,产卵lay-laid-laid。 1.The old man ________ on the road. Luckily, he was not badly____ A.lay, hurt B.lied, hurted C.has lain, hurt D.way lying, hurted 参考答案: A

2. The little girl who ________on the bed ________to her mother that the old hen had ________two eggs. A. lay; lay; lied B. lied; lied; lied https://www.sodocs.net/doc/1c15532604.html,id; laid; laid D. lay; lied; laid 参考答案: D 3. He asked me to _______ the table while he himself _______ in bed. A. lay; lied B. lay; lay C. lied; laid D. lay; laid 参考答案:B 4. He found the egg ________ that morning ________ on the floor. 无答案 A. lay; laid B. laid; laid C. lied; laid D. lied; lay 5. ------Why are you so angry ? -------My son _________to me that he __________ the money on the desk, but in fact he spent it on ice-cream. A. lied, lay B. lied, laid C. lay, laid D. laid, lay 参考答案:B 6The woman ____ her baby on its back on the bed. A.lied https://www.sodocs.net/doc/1c15532604.html,y https://www.sodocs.net/doc/1c15532604.html,id https://www.sodocs.net/doc/1c15532604.html,in 参考答案: C 7The little girl ____ on the ground ____ that she had ____ all the toysswheresthey were. A lying,lied,laid B.lying,lied,lain C laying, lay,laid https://www.sodocs.net/doc/1c15532604.html,ying,lay,lain 参考答案: A 8. Did you find a old woman on the ground when the door was broken open? A. dead; lay B. dying; lied C. dead; lied D. dying; lying 参考答案:D 9. “ I _____awake (醒着) all night thinking of you,” he ____to her. A. lied, lay B. lay, lay C. lied, lied D. lay, lied 参考答案: D

现在完成时趣味讲解

现在完成时趣味讲解 现在完成时的含义 可与现在完成时态相连用的常见时间状语 瞬间动词在现在完成时态中的用法 现在完成时的含义 在当今常见的语法书中对现在完成时的定义大多是:现在完成时是指过去发生的至今已经完成或还在继续的动作。在笔者2011年于《海外英语》中发表的《have + -en的构式研究》中曾指出这一说法的稍欠妥之处。因为过去发生的“已经完成”或“未完成”容易让学生产生疑惑:究竟是不是完成时? 笔者认为易仲良教授提出的“式态”的说法以及马承老师提出的“现在完成时表示过去已经发生而与现在情况有关系的动作”这一说法更能让学生理解。事实上,我在初中的教学过程当中也是这样跟学生讲解的,学生们能够较好的理解这一说法,并能自然地将现在完成时与一般过去时区分开来。 常与现在完成时相连的时间状语 在初中阶段,多数考查现在完成时的句子当中都有较为明显的时间状语标志词, 比如以下的这些句子(均摘录自人教版教材):

Have you read Treasure Island yet? I’ve already read it. Have you ever been to a museum? I’ve never been to a science museum. I’ve had this bike for three years. 如果在实际的教学过程当中孤立地让学生记忆这些时间状语标志,无疑会给学生增大学习难度。为了能够提高学生的学习兴趣,我认为可以通过口诀韵律的方式让学生较快地掌握:以前(before)从来不(never)出现,最近(recently)曾经(ever)一两遍(once/twice/many times…), 自从(since+时间点)刚刚(just)for一段(for+一段),至今(so far/up to now)已经(already/yet)很明显。 在实际的教学过程当中,教师可有意识地讲述两个“已经”(already/yet)及(since/for)的区别着重分章节讲解,让学生在有了整体概念的基础上对各个考点进行突破。 瞬间动词在现在完成时中的用法 在人教版的课本附录的语法讲解中,我们可以看到:“某些动词的现在完成时可表示过去某一时间开始并一直持续到现在(包括”现在“在内)的动作或状态,可以和表示延续的时间状语连用。表示持续动作或状态的动词多是延续性动词”。如:

现在完成时讲解

现在完成时间和现在完成进行时 一、现在完成时 1. 通常使用现在完成时的几种情况 (1)表示过去发生的事对现在的影响 Justin has disappeared, so Kelly is very sad. (Justin 失踪在过去,但是Kelly 至今仍旧为他的失踪感到难过) (2)表示过去的动作一直延续到现在 I haven’t seen Justin since last Friday night. (从上周五晚上到现在一直没有见到过Justin) (3)表示动作的确切时间不明确或不重要 The boy has already come home. (男孩已经回家,但没有指出何时回家) (4)表示刚结束的动作 The police have just finished searching the area. (警方刚结束对该地区的搜查) (5)表示反复发生的动作 Some villagers say that they have seen UFOs many times. (村民曾多次看到UFO) 2. 现在完成时的结构 现在完成时由“have / has + 过去分词”构成。 3. 常与现在完成时连用的时间状语 (1)表示过去的事或动作对现在有影响,动作的时间不明确、不重要或动作刚结束,一般可用already (用于肯定句)、yet (用于否定和疑问句)、ever、just、recently、lately 和never Tom has already come home. He hasn’t finished his homework yet. I’ve met the old man somewhere before. (2)表示从过去开始,并一直持续到现在,一般用for/since短语或由since 引导的时间状语从句。在介词for后一般跟表示一段时间的短语,在since后一般跟表示某个时间的短语,或表示过去时间的状语从句。 We haven’t seen him for two days/since last Monday. We haven’t seen him since he left Nanjing. 4. 现在完成时的应用 (1) 非持续性动词go, come, leave, borrow, buy, die, join的完成时的肯定式不能与时间段连 用,若要接用时间段状语,则应换成相应的持续动词或状态动词。如: He has left. 他走了。 He has been away for an hour. 他走了一个小时了。 Can I borrow that book? 我可以借那本书吗? How long can I keep the book? 这本书我可借多久? 注意:非持续性动词的否定完成时可与时间段状语连用。如: He has not borrowed the book since then. 从此以后,他再也没有借这本书了。 (2) have / has been to 表示曾经去过某地,但现在不在那儿;have / has gone to表示现在已去 某地,现在不在这儿。如: He has been to Canada, but now he is working in our company. 他去过加拿大,现在在我们公司工作。

过去完成时用法详解

过去完成时用法小结 一、过去完成时适用场合 1. 过去完成时表示在过去某一时间或动作以前已经完成了的动作。这个过去的时间常用by,before等介词短语或一个时间状语从句表示,也可以暗含在上下文中。 I had finished my homework before supper.我在晚饭前就把作业做完了。 The play had already started when we got to the theatre. 我们到剧场时戏已经开始了。 By the end of June they had treated over 10,000 patients. 到六月底他们已经治疗了一万多病人。 2. 过去完成时还可表示过去某一时刻之前发生的动作或状态持续到过去某个时间或还要持续下去,常与for,since等词连用。如: He had served in the army for ten years before he retired last year. 他在部队干了十年,去年退役了。 He told me that he had known her since he was a child. 他告诉我他从小就认识她。 He had learned English for eight years before he went to England for further study. 他在去英国深造前,已学了八年英语。 3. 在一段情景连贯的文字中,先发生的事放在后面叙述时,要用过去完成时。如: Tom flew home, but his father had already died. 汤姆乘飞机回家,他的父亲却已经去世了。 4. 过去完成时也用于hardly...when...(刚…就…), no sooner...than... (刚…就…), It was the first time + that分句等一些固定句型中。

初中英语时态讲解(完整版)

英语时态讲解 1. 一般现在时的应用 (1) 表示经常发生的动作或存在的状态。常用频度副sometimes, often, always, usually, seldom 以及时间副词 every day / night / week / month / year, in the morning, in the afternoon, in the evening, at night 做状语。如: He often stays up late. 他常熬夜。 We go home every month. 我们每月都要回家。 I watch TV at night. 我晚上看电视。 (2) 表示客观真理或永恒的状态。如: The earth travels round the sun. 地球绕太阳旋转。 Trees turn green in spring. 春天树木变绿。 Liquid turns into gas when it is hot enough. 足够热时,液体变为气体。 Practice makes perfect. 熟能生巧。 (3) 现阶段的状态。常跟时间副词now连用。如: He lives in Beijing now. 他现在住在北京。 She is at home. 她在家。 They work in that factory. 他们在那家工厂工作。 (4) 习惯性的爱好或行为。如: I like dancing while she likes singing. 我喜欢跳舞,而她喜欢唱歌。 We get up at six. 我们六点起床。 He studies very hard. 他学习很刻苦。 (5) 表示已经计划、安排好了或时间表上所安排,并且一定要做的事情。用于这种句型的动词主要是瞬间动词:come, go, leave, arrive, begin, start, stop, close, open等。如: The train arrives at five past eight and leaves at ten past eight. 火车八点过五分到,八点过十分

现在完成时讲解(含讲解及习题)

现在完成时讲解 一、构成: 肯定式:主语+ 助动词have/has + 动词的过去分词. 疑问式:助动词Have/Has + 主语+ 动词的过去分词? 否定式: 主语+ 助动词have/has + not + 动词的过去分词. 过去分词规则变化: a)一般情况下,直接加ed, (work---worked,water---watered, finish---finished等;) b)以“辅音字母+ y”结尾的动词, 把y 变成i 再加ed, (carry---carried study---studied等;) c)以辅+元+辅结尾且中读的动词,要双写最后一个辅音字母,再加ed。(stop---stopped,shop---shopped) d)以不发音的e结尾的动词,只加d ( 过去分词不规则变化表: 二、用法: 用法一:表示过去(已经、曾经或从未)发生的某一动作对现在造成的影响或结果。 标志词:①already, ②never, ③ever, ④just, ⑤yet, ⑥before, ⑦once/twice/数字+ times 例:I have cleaned my room. 我已打扫了房间(房间现在是干净的,不需要打扫了) 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 never had a car (我从未有过汽车。) I have been there twice. a)already 往往用于肯定句,用在疑问句时表示强调或加强语气;yet 用于否定句和疑问句。 ?He has already left here. 他已经离开这里了。 ?Has he already left here? 他(真的)已经离开这里了吗?(表示加强语气) ?My teachers haven’t had breakfast yet. 我的老师们还没有吃早饭。 ?Have you written to your parents yet? 你已经给你父母写过信了吗? b)never 是否定词,表示“从来没有”,而ever 表示“曾经” ?We have never been to the Great Wall. 我们从来没有去过长城。 ?Have you ever been to Canada? 你们曾经去过加拿大吗? c)just用于句中, 表示“刚刚” ?I’ve just had breakfast. 我刚吃完早饭。 ?What have they just done? 他们刚刚做了什么? d)before用于句末, 表示“以前” ?I’ve seen it before. 我以前见过它。 练习:用never,ever,already,before, just或yet填空。 1. I have __________seen him before, so I have no idea about him. 2. Jack has __________finished his homework. 3. --Have you _________seen the film? --No, I have ________seen it. 4. ---Has the bus left _______? ---Yes, it has ________ left. 5. Would you like to go to the zoo with me? Yes, but I have been there _________.

过去完成时讲解

过去完成时 一、过去完成时的概念与结构特点 概念:过去完成时表示在过去某一时间或动作之前已经发生或完成了的动作,即“过去的过去( past-in-the-past )”。 ----|-------------------------- |-------------------------------|----------------------------> 那时以前那时现在 构成:过去完成时由“助动词 had + 过去分词”构成,其中 had 通用于各种人称。 They had already had breakfast before they arrived at the hotel. She had finished writing the composition by 10 :00 this morning. 二、过去完成时的判断依据 1. 由时间状语来判定 一般说来,各种时态都有特定的时间状语。与过去完成时连用的时间状语有: ( 1 ) by + 过去的时间点。 如: I had finished reading the novel by nine o'clock last night. ( 2 ) by the end of + 过去的时间点。 如: We had learned over two thousand English words by the end of last term. ( 3 ) before + 过去的时间点。 如: They had planted six hundred trees before last Wednesday. 2. 由“过去的过去”来判定。 过去完成时表示“过去的过去”,是指过去某一动作之前已经发生或完成的动作,即动作有先后关系,动作在前的用过去完成时,在后的用一般过去时。这种用法常出现在: ( 1 )宾语从句中 当宾语从句的主句为一般过去时,且从句的动作先于主句的动作时,从句要用过去完成时。在told, said, knew, heard, thought等动词后的宾语从句。如: She said that she had seen the film before. ( 2 )状语从句中 在时间、条件、原因、方式等状语从句中,主、从句的动作发生有先后关系,动作在前的,要用过去完成时,动作在后的要用一般过去时。如: When I got to the station, the train had already left.

(完整版)英语完成时态语法讲解专题

过去完成时态 (一)定义:①表示发生在过去的动作对过去晚些时候造成的影响或结果②过去某一动作一直持续到过去晚些时候将来可能还要延续。发生在前的那个动作【过去的过去】 (二)基本结构:主语+had+过去分词vpp.(done) ①肯定句:主语+had+过去分词. ②否定句:主语+had+not+过去分词. ③一般疑问句:Had+主语+过去分词? 肯定回答:Yes,主语+had. 否定回答:No,主语+had not . ④特殊疑问句:特殊疑问词或词组+一般疑问句(Had+主语+过去分词)? ⑤被动语态:主语+had(hadn't)+been+过去分词 (三)用法: (1)表示在过去某一时刻或动作以前完成了的动作,也可以说过去的时间关于过去的动作。即“过去的过去”。可以用by, before等介词短语或一个时间状语从句来表示,也可以用一个表示过去的动作来表示,还可能通过上下文来表示。 例如:By nine o’clock last night, we had gotten 200 pictures from the spaceship. 到昨晚9点钟,我们已经收到200 张飞船发来的图片。 (2)表示由过去的某一时刻开始,一直延续到过去另一时间的动作或状态,常和for, since构成的时间状语连用。 例如:I had been at the bus stop for 20 minutes when a bus finally came. 当车来的时候,我在车站已等了20分钟。 He said he had worked in that factory since 1949. 他说自从1949年以来他就在那家工厂工作。 (3)叙述过去发生的事情,在已叙述了过去发生的事情后,反过来追述或补述以前发生的动作时,常使用过去完成时。 例如:Mr. Smith died yesterday. He had been a good friend of mine. 史密斯先生昨天去世了。他以前是我的好友。 I didn’t know a thing about the verbs, for I had not studied my lesson. 我对动词一无所知,因为我没有好好学习功课。 (4)在含有定语从句的主从复合句中,如果叙述的是过去的事,先发生的动作常用过去完成时。 例如:I returned the book that I had borrowed. 我已归还了我借的书。 She found the key that she had lost. 她丢失的钥匙找到了。 (5)过去完成时常常用在told,said,knew,heard,thought等动词后的宾语从句(或间接引语)中,这时从句中的动作发生在主句表示的过去的动作之前。 例如:He said that he had known her well. 他说他很熟悉她。 I thought I had sent the letter a week before. 我认为我一星期前就把信寄出去了。 (6)状语从句:在过去不同时间发生的两个动作中,发生在前,用过去完成时;发生在后,用一般过去时。 如when,before,after,as soon as,till/until引导的

过去完成时讲解及练习带答案

定义 过去完成时(past perfect)表示在过去某一时间或动作之前已经发生或完成了的动作或状态。它表示句子中描述的动作发生在“过去的过去”。 基本结构 主语+had+过去分词vpp.(done) ①肯定句:主语+had+过去分词. ②否定句:主语+had+not+过去分词. ③一般疑问句:Had+主语+过去分词? 肯定回答:Yes,主语+had. 否定回答:No,主语+had not . ④特殊疑问句:特殊疑问词或词组+一般疑问句(Had+主语+过去分词)? 基本用法 (1)表示在过去某一时刻或动作以前完成了的动作,也可以说过去的时间关于过去的动作。即“过去的过去”。可以用by, before等介词短语或一个时间状语从句来表示,也可以用一个表示过去的动作来表示,还可能通过上下文来表示。 例如:By nine o’clock last night, we had got 200 pictures from the spaceship. 到昨晚9点钟,我们已经收到200 张飞船发来的图片。 (2)表示由过去的某一时刻开始,一直延续到过去另一时间的动作或状态,常和for, since构成的时间状语连用。 例如:I had been at the bus stop for 20 minutes when a bus finally came. 当车来的时候,我在车站已等了20分钟。 He said he had worked in that factory since 1949. 他说自从1949年以来他就在那家工厂工作。 (3)叙述过去发生的事情,在已叙述了过去发生的事情后,反过来追述或补述以前发生的动作时,常使用过去完成时。 例如:Mr. Smith died yesterday. He had been a good friend of mine. 史密斯先生昨天去世了。他以前是我的好友。 I didn’t know a thing about the verbs, for I had not studied my lesson. 我对动词一无所知,因为我没有好好学习功课。 (4)在含有定语从句的主从复合句中,如果叙述的是过去的事,先发生的动作常用过去完成时。例如:I returned the book that I had borrowed. 我已归还了我借的书。 She found the key that she had lost. 她丢失的钥匙找到了。 (5)过去完成时常常用在told,said,knew,heard,thought等动词后的宾语从句(或间接引语)中,这时从句中的动作发生在主句表示的过去的动作之前。 例如:He said that he had known her well. 他说他很熟悉她。 I thought I had sent the letter a week before. 我认为我一星期前就把信寄出去了。 (6)状语从句:在过去不同时间发生的两个动作中,发生在前,用过去完成时;发生在后,用一般过去时。 如when,before,after,as soon as,till/until引导的

现在完成时的用法讲解

现在完成时的讲解 对所学时态的回顾,引入现在完成时 通过数轴来概括讲解所学的四个时态:一般现在时、现在进行时、一般过去时、一般将来时。(导入)有时候,这4种时态还不能满足我们表达的需要。比如:表示“某人过去曾经做过某事”或者“某人做某事多久”,以上五种时态就派不上用场了。这时,我们可以用一种新的时态——现在完成时表示。同样也用数轴来表示一下。 一现在完成时的构成:主语+ have/has + 过去分词 (过去分词:规则动词的过去分词构成与动词过去式相同;不规则动词需要特殊记忆。 eg .Ihavetaught Englishinthisschoolsince1999. 二、否定式:主语+ haven’t/hasn’t+过去分词。 疑问式:Have /Has + 主语+过去分词? 简略答语:Yes,主语+ have/has.(肯定) No,主语+ haven’t/hasn’t.(否定) —Have you finishedyourwork? —Yes,I have. 三现在完成时的含义之一表示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/yet,just,never/ever,before,so far等连用。这些标志词可以表达这种含义. 1.already意为“已经”,通常用于肯定句中,可放在助动词之后,过去分词之前,也可以放在句末。实例: 1)I've already read thisbook. 我已经读过这本书了。 (“读”这一动作发生在过去,对现在造成的影响是“知道书中的内容”。) 2)I'vewashedmy clothes already.我已经洗了衣服。 (洗衣服的动作已完成,其结果是“衣服冼干净了”。) 注意:在表示吃惊或明知故问等感情色彩时,already也可用于(口语)疑问句中。实例:

现在完成时讲解讲课教案

如何使用现在完成时 同学们我们已经学习了现在进行时、一般现在时、一般过去时、一般将来时这4种时态的用法,但这4种时态还不能满足我们表达的需要。比如:表示“某人过去曾经做过某事”或者“某人做某事多久”,以上五种时态就派不上用场了。这时,我们可以用一种新的时态——现在完成时表示。 一、现在完成时的构成 (一)肯定式 主语+助动词have /has +过去分词+其它 说明:这里的have /has是助动词,没有什么具体意义。当主语是第三人称单数时助动词用has,其余人称一律用have。has,have的缩略式分别为's或've。规则动词过去分词的构成与过去式的构成方式一样,不规则动词可参看不规则动词表。实例: 1)I've just copied all the new words .我刚抄写了所有的生词。(表示不要再抄了) 2)She has lost her books .她丢失了她的书。(表示到目前为止还没有找到) (如果用过去时:She lost her books . 则强调书是过去丢的这一动作,而不知现在有没有找到) 3)We've just cleaned the classroom .我们刚好打扫了教室。(表明现在教室是干净的) (二)否定式 主语+助动词have /has+not+过去分词+其它 说明:现在完成时构成否定句时,只需在助动词have /has后面加not就行。have not,has not的缩略式分别为haven't ,hasn't。另外,肯定句中有some,already时,改为否定时要分别改成any,yet。实例: 1)I haven't finished my homework yet.我还没有完成我的作业。 2)She hasn't travelled on a train .她没有坐火车旅行过。 3)We have never spoken to a foreigner.我们从来没有和外国人说过话。 注:有时not可以用never代替,表示“从来没有”的意思。又如: 4)I have never seen him before.以前我从来没有见过他。 (三)一般疑问式 助动词Have /Has +主语+过去分词+其它? 说明:把陈述句中的have或has放到句首,句末打问号,同时把句中的some ,already改为any ,ye t 就构成了一般疑问句。肯定回答用“Yes ,主语+have/has.否定回答用“No,主语+haven't/hasn't.”有时也可以用“No,not yet./No ,never./No,not even once.”等。实例: 1)—Have you ever made dumplings ?你曾经做过饺子吗? —Yes ,I have .是的,我做过。 2)—Has she ever been abroad ?她曾经出过国吗? —No,never.不,从来没有。 3)—Have they found the lost books yet ?他们已经找到了丢失的书吗? —Yes ,they have.是的,他们找到了。 注意:当句中有否定词not ,hardly(几乎不),never的时候,在改为反意疑问句时,附加部分用肯定形式。例如:You have never come to our school ,have you ?你以前从来没有来过我们学校,是吗?二、现在完成时的用法 (一)现在完成时的用法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。此时,常与时间副词already(已经),yet(还、已经),just(刚刚、仅仅) ,ever(曾经),never(从不),before(以前)等连用。这几个副词的用法如下: 1.already意为“已经”,通常用于肯定句中,可放在助动词之后,过去分词之前,也可以放在句末。实例:1)I've already read this book. 我已经读过这本书了。

精华版if引导的虚拟语气讲解

if引导的条件状语从句中的虚拟语气 虚拟语气表示一种不能实现的假设。该语法主要用于if条件状语从句。 一、if引导的条件状语从句的分类及虚拟条件句的判断 1、可以把条件句分为两类: 1).真实条件句(Sentences of Real Condition): 凡是假设的情况发生性可能很大,就是真实条件句。例如: ⑴、If I have time , I will help you with this work.如果我有时间会帮助你做此工作的。 (2)、If time permits, we'll go fishing together.(如果有时间的话,我们就一起去钓鱼。)2).虚拟条件句(Sentences of Unreal Condition): 当假设是不大可能实现时,就是虚拟条件句。例如: ⑴、If I were you , I would have attended the meeting.如果我是你的话,就去参加会议了。 (3)、If it had rained yesterday, we would have stayed at home.(如果昨天下雨的话,我们就会留在家里。) 2、if条件状语从句中虚拟语气的判断 判断是真实条件句还是非真实条件句。只有在非真实条件句中才使用虚拟语气。通过句子意思,看假设的条件是否能够实现,能够实现是真实条件句,不能使用虚拟语气;假设的条件不能实现则是非真实条件句,要用虚拟语气。 判断这个假设是与哪个事实相反。通常有三种情况: ①与过去事实相反。②与现在事实相反。③与将来事实可能相反。 3、“后退一步法”

后退一步法是指在准确地判断了该句与哪一事实相反后,按虚拟语气的后退一步法处理从句谓语动词的时态。即: 在非真实条件状语从句中,谓语动词按正常情况“后退一步”。也就是: ①与过去事实相反,在从句中用过去完成时形式表示。 ②与现在事实相反,在从句中用过去一般时形式表示。 ③与将来事实可能相反,在从句中用过去将来时形式表示。主句中则用情态动词would, should, could等加一个与从句一致的动词形式。例: ⑵、If I were a teacher, I would be strict with my students. ⑶、If it should snow tomorrow, they couldn't go out. 一、与过去事实相反 连接词条件从句结果从句 Should Ifhad+过去分词Would + have+过去分词could might 二、与现在事实相反 连接词条件从句 Should If 1."动词过去式(或were) 2.助动词(过去式)+动词原形Would +动词原形 could might

中考英语过去完成时完整归纳

外研版英语中考英语过去完成时完整归纳 一、初中英语过去完成时 1.Mr. Smith ________ in a car factory for ten years before he came to China. A. had worked B. works C. is working D. will work 【答案】 A 【解析】【分析】句意:史密斯先生来中国前在一个汽车厂工作十年了。根据before he came to China,可知他来汽车厂发生在来中国前,所以句子时态是过去完成时,had worked,故选A。 【点评】此题考查过去完成时。根据时间状语确定句子时态。 2.— Jack, would you like to see the new movie? — I'd love to, but I______ it already. A. am seeing B. will see C. see D. have seen 【答案】 D 【解析】【分析】句意:——杰克,你愿意去看这个新电影吗?——当然乐意,但是我已经看过了。由already可知是完成时,所以用have done。故选D。 【点评】本题考查完成时have done。 3.By the time I got there, the football match ________ already ________. A. has; finished B. was; finished C. had; finished D. /; finished 【答案】 C 【解析】【分析】句意:到我到达那里的时候,足球赛已经结束了。by the time通常用完成时态,根据got可知是过去完成时,故选C。 【点评】考查过去完成时。 4.The film when I got there. A. was on B. has been on C. had begun D. has begun 【答案】 C 【解析】【分析】题中“I got there”表现的是过去时,且题意表达已经开始故为过去完成时,故选C. 【点评】此题考查过去完成时。

现在完成时态讲解

现在完成时讲解 一.基本结构:助动词have/has+过去分词(done) 二.句型: 否定句:主语+have/has+not+过去分词+其他. 一般疑问句:Have/Has+主语+过去分词+其他. 简略答语: Yes, 主语+ have/has.(肯定) No, 主语+ haven't/hasn't.(否定) 三.用法 (1)现在完成时表示过去发生或已经完成的动作对现在造成的影响或结果 I have spent all of my money (so far).(含义是:现在我没有钱花了.) Guo zijun has (just/already) come. (含义:郭子君现在在这儿) My father has gone to work.(含义是:我爸爸现在不在这儿) (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. ①for+时段 ②since+过去一个时间点(译为:自从……以来) ③since+时段+ago ④since+从句(过去时) ●⑤It is+时段+since+从句(过去时) Mary has been ill for three days. I have lived here since 1998.

四.has gone (to),has been (to), has been (in) 的区别 Have/Has gone(to) :去了(现在不在说话现场) Where is your father?He has gone to Shanghai. Have/Has been (to) :去过(已不在去过的地方) My father has been to Shanghai. Have/has been in:呆了多久(还在所呆的地方) My father has been in Shanghai for two months. /since two months ago. 五.现在完成时的标志 1. 现在完成时的含义之一是过去完成的动作对现在仍有影响,用以下四大标志词可以表达这种含义: * 以already, just和yet为标志 He has already got her help. 他已得到她的帮助。 He has just seen the film. 他刚刚看过这场电影。 He hasn't come back yet. 他还没有回来。 * 以ever和never为标志 This is the best film I have ever seen. 这是我曾经看过的最好的一部电影。 He has never been to Beijing. 他从没有到过北京。

(完整版)过去完成时的用法总结,推荐文档

1. cleaned the blackboard 2. closed the window ——————∣—————∣—————→∣——→ had cleaned the closed the window now blackboard She had cleaned the blackboard before she closed the window. After she had cleaned the blackboard , she closed the window. 1. ran out of breath 2. drank water ——————∣—————∣—————→∣——→ had run out drank water now of breath He had run out of breath before he drank water. After he had run out of breath, he drank water. 1. ate an apple 2. slept ——————∣—————∣—————→∣——→ had eaten slept now an apple She had eaten an apple before she slept. After she had eaten an apple , she slept. 一、过去完成时定义: ②过去某动作一直持续到现在将来可能还要延续下去。句中的动作发生在过去之前(过去的过去),即过去完成时动作发生在过去的过去。 He said he had been to Beijing twice. 他说他已经去过北京两次。(因为“说”said就是过去式,而去北京的动作发生在说said 的过去,所以用过完而不用现完。

现在完成时讲解

现在完成时讲解 第一部分: 现在完成时表示过去发生或已经完成的动作对现在造成的影响或结果,也可表示过去已经开始,一直延续到现在的动作或状态。学习现在完成时,先从结构和句式开始: 构成:主语 + have / has + 过去分词 + 其他 (当主语是第三人称单数时用has,其余人称用have。过去分词:规则动词的过去分词构成与动词过去式相同;不规则动词需要特殊记忆。) 否定式:主语+ haven’t / hasn’t +过去分词 + 其他 疑问式:Have / Has + 主语 + 过去分词 + 其他? 简略答语:Yes, 主语 + have / has.(肯定) No, 主语+ haven’t / hasn’t.(否定) 第二部分: 现在完成时的含义之一是过去完成的动作对现在仍有影响,用以下四大标志词可以表达这种含义: 1.以already, just和yet为标志 already, just和yet表示到现在为止动作或状态已经、刚刚或还没有发生。 He has already got her help.他已得到她的帮助。 He has just seen the film.他刚刚看过这场电影。 He hasn’t come back yet.他还没有回来。 2.以ever和never为标志 ever和never表示到现在为止动作或状态曾经或从来没有发生过。 This is the best film I have ever seen.这是我曾经看过的最好的一部电影。 He has never been to Beijing.他从没有到过北京。 3.以动作发生的次数为标志 若某一动作到现在为止已经发生了若干次,则要使用现在完成时。 He says he has been to the USA three times. 他说他已经去过美国三次了。 4.以so far为标志 so far往往表示到目前为止动作或状态已经发生。 He has got to Beijing so far.到目前为止他已到了北京。 She has passed the exam so far.到目前为止她已经通过了考试。 第三部分: 过去已经开始的动作一直延续到现在,甚至有可能继续延续下去,我们可以从动作“延续”的特性和“时间”点段的区分入手,进一步学习现在完成时。 “终止”、“延续”要转换 英语中的动词从词义上可以分为延续性和非延续性两种。在现在完成时态中一定要注意动词这一特性,应将这类非延续性动词转换为延续性动词。如:“Cats” has been on for half an hour.《猫》已经开演半个小时了。 How long have you had this dictionary?这本字典你买了多久了? 初中阶段常见的有:come—be, go out—be out, leave—be away (from), begin—be on, buy—have, borrow—keep, join—be a member / 介词短语, die—be dead, become—be, open (v.)—be open (adj.) 等。

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