初中英语时态视频讲解
⑴ 初中英语八大时态讲解
1. 一般现在时表示现阶段经常或习惯发生的动作或存在的状态,或说明主语的特征。①一般现在时句子中常有的时间状语:often, usually, sometimes, always, every (day等), once/twice, a (week等), on (Sunday等), never, in the (morning等)。如:They go to the Palace Museum once a year.(他们每年去一次故宫)/ They often discuss business in the evening.(他们经常在晚上商谈生意)②表示客观真理、事实、人的技能或现在的状态时句子里一般不用时间状语。如:The earth turns round the sun.(地球绕着太阳转)/ Light travels faster than sound.(光传播比声音快)③ 表示十分确定会发生(如安排好的事情)或按照时间表进行的事情,用一般现在可以表达将来,句子中可以有将来时间。如:The train for Haikou leaves at 8:00 in the morning.(开往汉口的列车上午8点开车)④ 在时间状语从句中(以when, after, before, while, until, as soon as等引导)和条件状语从句中(以if,unless引导),用一般现在时代替一般将来时,句子可以有将来时间。如:Please ring me up as soon as you arrive in Germany.(你一到德国就给我打电话) / If it rains tomorrow,we will have to stay at home.(如果明天下雨我们就只好呆在家)⑤ 一般现在时用于倒装句中可以表示正在发生的动作,动词以come, go为主。如:Here comes the bus. (车来了) / There goes the bell.(铃响了)。⑥ 一般现在时常用于体育比赛的解说或寓言故事中。Now the midfield player catches the ball and he keeps it.⑦ 人的心理活动和感官动作一般用一般现在时而不用现在进行时表达,常见动词有:like, love, hate, dislike, want, wish, hope, think(认为),understand, remember, forget, mean, need, hear, feel, see. 如:I think it is going to snow.(我想天要下雪了)/ I really hope you can enjoy your stay here.(我真的希望你愉快地呆在这儿)2. 一般过去时 表示过去某时发生的动作或状态,这种动作或状态可能是一次性,也可能经常发生。①表示过去具体时刻发生的一次性动作时,时间状语有:at (eight) (yesterday morning),(ten minutes) ago, when引导的时间状语从句。如:I got up at 6:00 this morning.(我是早上六点钟起床的)/ Little Tom broke the window at half past nine this morning.(小汤姆今天早上九点半把窗子打破了)/ When he went into the room,he saw a stranger talking with his father.(他走进房间时发现一个陌生人正和他父亲谈话)②表示过去一段时间内不知何时发生的一次性动作时,时间状语有:yesterday, last (year等), in (1998 等),in the past。如:He came to our city in the year 2000.(他2000年来到我们市)③表示过去一个阶段中经常发生的事情时,时间状语有:last…, in…, from…to…, for(10 years),often,usually, sometimes, always, never等。如:Mr Jackson usually went to evening schools when he was young. / Every day he went to the rich man and borrowed books from him.④讲故事、对过去经历的回忆、双方都明白的过去事件等一般用过去时,而且经常省略时间状语。如:I happened to meet Rose in the street.(我正好在街上遇到露西)3. 一般将来时 表示将来某一时刻或经常发生的动作或状态。①一般将来时的时间状语有:tomorrow,this (afternoon), next (year), one day, now, soon, someday, sometime, in the future, when引导的从句等。②用will构成的将来时,表示动作与人的主观愿望无关。“shall”用于第一人称,“will” 用于所有人称。如:I will graate from this school soon.(我很快就要从这所中学毕业了)/ You will stay alone after I leave.(我走了之后你就要一个人过了)③“am/is/are going to+动词原形”表示打算或准备要做的事情,或者主观判断即将要发生的事情。It’s going to rain soon.(天快要下雨了)④表示一个人临时决定要做某事,可以用will表达。如:I will go to the lab to get some chemicals(化学药剂). So please wait until I return.(我要到化学实验室去取些药品,请等我回头)⑤现在进行时、一般现在时也可以表示将来。(见相应时态)⑥shall和will 在口语的一些疑问句中相当于情态动词。Shall一般与第一人称连用,will与第二人称连用。如:Shall we go to the zoo next Saturday?(我们下周六去动物园好吗?)/ Will you please open the door for me?(替我把门打开好吗?)4. 现在进行时 现在进行时表示现在正在进行的动作或是现阶段正发生此刻不一定在进行的动作。①现在进行时由“助动词be (am is are ) +现在分词”构成。②现在进行时的时间状语有: now, this …, these…等,但经常不用。如:What are you doing up in the tree?(你在树上干什么?)/ I am writing a long novel these days.(我最近在写一本长篇小说)③表示即将发生的动作,一般指近期安排好的事情。常见的动词有:come, go, stay, leave, spend, do等。如:I’m coming now.(我就来)/ What are you doing tomorrow?(你明天干什么?)/ He is leaving soon.(他就要走了)④表示频繁发生或反复进行的动作,常与always等频度副词连用,以表示赞扬、不满或讨厌等感情色彩。如:He is always borrowing money from me and forgetting all about it some time later.(他老是向我借钱,过一些时候就忘得一干二净)5. 过去进行时 过去进行时表示过去某一时刻或某阶段正在进行的动作。①过去进行时由“was(第一、三人称单数)或were(第二人称单数和各人称的复数)+现在分词”构成。②过去进行时的时间状语有:then, at that time, this time yesterday, at (eight) yesterday (morning),(a year) ago, 以及由when引出的时间状语从句。如:He was cooking supper this time yesterday.(昨天这个时候他正在做晚饭)/ The little girl was playing with her toy when I saw her.(我看到小女孩的时候她正在玩玩具)③用于宾语从句或时间状语从句中,表示与主句动作同时进行而且是延续时间较长。句子中通常不用时间状语。如:She saw it happen when she was walking past.(她路过时看到事情的发生)/ They sang a lot of songs while they were walking in the dark forest.(他们在黑暗的森林里走时唱了很多歌)④也可以表示过去一个阶段频繁发生或反复进行的动作,常与always等频度副词连用,以表示赞扬、不满或讨厌等感情色彩。如:He was always borrowing money from me when he lived here.(他住在这里时老向我借钱)6. 现在完成时 现在完成时表示一个发生在过去的、对现在仍有影响的动作,或表示开始在过去,并且一直延续到现在,甚至还可能延续下去的动作。①在完成时由“助动词have (has)+动词的过去分词”构成。②表示发生在过去的对现在仍有影响的动作时,时间状语有:already, yet, just, once, twice, ever, never, three times, before, in the past+一段时间等。如:I have never seen such fine pictures before. (我以前从来没有看过这么好的画)/ He has just gone to England.(他刚去英国)③表示在过去开始一直延续到现在(可能延续下去)的动作或状态时,时间状语有:for (two years),since 1990, since (two weeks ago)和since引导的状语从句。如:I have been away from my hometown for thirty years.(我离开家乡有30年了)/ Uncle Wang has worked in the factory since it opened.(自从这家工厂开张,王叔叔一直在那儿工作)④口语中have got往往表示have(有)的意思。如:They have got thousands of books in their library.(他们图书馆有上万本书)⑤have been to与have gone to的区别:have gone to(“已经去了”)表示人不在这里,have been to(“去过”)表示人在这里。如:--Where is Mr. Li? –He has gone to the UK. (李先生在哪里?他去了英国。)/ --Do you know something about Beijing? –Yes, I have been to Beijing three times. (你知道北京的情况吗?是的,我去过那里三次。)⑥在完成时中,一个瞬间性动词(一次性动作)不能与表示一段时间的状语连用, 此时须将该瞬间动词改为延续性动词或状态动词。或者使用下面这个句型:It is/ has been + (多久)+ since +主语(人)+谓语(过去时)+……+过去时间状语[注意] 在其它的时态中也存在类似问题,记住,关键是:瞬间动词不能和表达一段时间的状语连用。如:How long may I keep the book?(这本书我能借多久?)(句子中keep取代了borrow)8. 过去完成时 过去完成时表示过去某一时间或某一动作发生之前已经完成的动作。简言之, 过去完成时所表示的时间是“过去的过去”。①过去完成时由“助动词had+动词的过去分词”构成。②过去完成时时间状语有:by (yesterday), by then, by the end of (last…)或者由when, before等引出状语从句。有时句子中会有already, just, once, ever, never等词语,也会有for… 或since…构成的时间状语。如:They had already finished cleaning the classroom when their teacher came.(当老师来的时候他们已经打扫完了教室)/ The woman had left before he realized she was a cheat.(在他发觉那个妇女是个骗子时她已经走掉了)③过去完成时常用于宾语从句中、after引导的从句中,或者从句是before引导的主句中。如:After I had put on my shoes and hat, I walked into the darkness.(我穿上鞋子戴上帽子走进了黑暗之中)/ He said that he had never seen a kangaroo before.(他说他以前从来没有见过袋鼠)8. 过去将来时 过去将来时表示在过去预计将要发生的动作或存在的状态。①过去将来时由“助动词should(第一人称)或would(第二、三人称)+动词原形”构成。在美国英语中,过去将来时的助动词一律用“would +动词原形”。②过去将来时常由于宾语从句中,时间状语有:later, soon, the next (day).③在时间状语从句和条件状语从句中不可以使用过去将来时,而应该使用一般过去时。如:He promised that he would pay me a lot if I helped him with the project.(他答应付给我许多钱如果我帮助他搞那个项目)/ Every time when he was free, he would sit down and read some books.(每次只要他有空他就会坐下来看看书)④表示纯粹的将来时用would或should,表示打算或主观认为的事情用was/were going to (+动词原形)。如:She told me she would be 18 the next month.(她告诉我她下个月就18岁了)/ She told me that she was going to have a walk with her pet dog.(她告诉我她打算带她的宠物狗去散步)⑤过去将来时还可以表示一个过去经常性的动作。如:When it rained in the day, he would bring an umbrella with him.(白天下雨时他会随身带一把雨伞)
⑵ 初中英语的八种时态详解
过去将来时 过去进行时 过去完成时 一般现在时 I)被动语态的概念 语态也是动词的一种形式,表示主语与谓语之间的关系。英语有两种语态:主动语态和被动语态People .被动语态表示主语是谓语动作的承受者,. (II)被动语态的构成 被动语态的形式是由“助动词be动词的过去分词”构成。助动词be随着主语的人称,数,时态和语气的不同而变化。各种时态的被动语态形式如下: 1. 注:Get+过去分词也可以构成被动语态,用这种结构的句子侧重于动作的结果而不是动作本身。如: the man got hurt on his way home. 那个男人在回家的路上受伤了。 )被动语态的几种句型 1.将主动语态中的宾语转换成被动语态的主语。 2.将主动语态中的动词改为“be+V(p.p)” 3.原来主动语态中的主语,如果需要,放在by后面以它的宾格形式出现,如没必要,可以省略。 4.主动语态中的其他句子成分不变。 由于主动语态结构的不同,因而转换成被动语态的方式也各有不同,现分类说明如下: a.由及物动词形成的被动语态: (1)S+V+O 主语+动词+宾语语法学习纲要由江苏省靖江高级中学外语组为英语猫网站编写 People grow rice in the south. Rice is grown in the south. 注:带有宾语从句的句子转换成被动语态时,需要将宾语从句变为主语从句,通常用形式主语来代替,而将主语从句后置。 They said that he would come back soon. It was said that he would come back soon.类似的还有: It is reported / believed /hoped /supposed that …… (2)S+V+O+C 主语+动词+宾语+宾补 We elected Li Ming monitor of our class. Li Ming was elected monitor of our class. 注:在主动结构中跟不带to的动词不定式作宾补变为被动结构时应加上to作主语补足语。 奴隶们被奴隶主强迫整日整夜工作。Slave-owners made slaves work all day and all night. Slaves were made to work all day and all night by slave-owners. (3)S+V+Oi+Od 主语+动词+间宾+直宾 语法学习纲要由江苏省靖江高级中学外语组为英语猫网站编写 昨天他给了我一件漂亮的生日卡。He gave me a beautiful birthday card yesterday. I was given a beautiful birthday card yesterday. A beautiful birthday card was given to me yesterday. 注:用直接宾语作被动语态的主语时,通常要在间接宾语前加上适当的介词。如:to, for, of等,以加强间接宾语的语气。 b.由动词短语形成的被动语态: 一般情况下,只有及物动词才能跟宾语,而不及物动词不能跟宾语,所以只有及物动词才有被动语态,不及物动词则没有被动语态。但有些不及物动词后面跟上介词或副词后,变成一个动词短语,相当于一个及物动词,就可以形成被动语态。 约翰打开了收音机。John turned on the radio. The radio was turned on. . 注:千万不要遗漏介词或副词。 c.祈使句的被动语态通常借助let句式 请把窗户关上。Please close the window. Let the window be closed. (IV)被动语态的使用时机 语法学习纲要由江苏省中学外语组为英语猫网站编写 被动语态的使用往往不是任意的,而是按照表达思想,描述事物的需要,通常在下列情况下使用被动语态。 1.不知道或不必说出动作的执行者。 这本书已被翻译成许多种语言。This book has been translated into many languages. 2.动作的对象是谈话的中心。 我们家乡将建一条新铁路。A new railway will be built in our hometown. 3.修辞的需要,为了使句子更加简练匀称: 他出现在舞台上受到了观众的热烈欢迎。He appeared on the stage and was warmly applauded by the audience. 被动语态便于论述客观事实,故常用于科技文章,新闻报道,书刊介绍及景物描写。 【特别提醒】 有些动词后跟不带to的不定式作宾语补足语,但改为被动结构后要加上“to”。例如 We heard him sing in his room just now. ---He was heard to sing in his room just now. 刚才听到他在房间中唱歌。 一、 被动语态的用法: 1. 一般现在时的被动语态构成:is / am / are + 及物动词的过去分词 Our classroom is cleaned everyday. I am asked to study hard by my mother. Knives are used for cutting things. 2. 一般过去时的被动语态构成:was / were + 及物动词的过去分词 A new shop was built last year. Dinosaur eggs were laid long long ago. 3. 现在完成时的被动语态构成:has / have + been + 及物动词的过去分词 This book has been translated into many languages. Many man-made satellites have been sent up into space by many countries. 4. 一般将来时的被动语态构成:will+ be + 及物动词的过去分词 A new hospital will be built in our city. Many more trees will be planted next year. 5. 含有情态动词的被动语态构成:情态动词+ be + 及物动词的过去分词 Young trees must be watered often. Your mistakes should be corrected right now. The door may be locked inside. Your homework can be handed in tomorrow. 6. 现在进行时的被动语态构成:am / is / are + being + 及物动词的过去分词 Uncle Wang is mending my bike now.→ My bike is being repaired by Tom now. They are planting trees over there. → Trees are being planted over there by them. 7. 不定式的被动语态:to + be + 及物动词的过去分词 There are two books to be read. → There are twenty more trees to be planted. 二、 怎样把主动语态改成被动语态? 把主动语态改为被动语态非常简单,可以遵循以下几个步骤: 1. 先找出谓语动词; 2. 再找出谓语动词后的宾语; 3. 把宾语用作被动语态中的主语; 4. 注意人称、时态和数的变化。 例:1. Bruce writes a letter every week. →A letter is written by Bruce every week. 2. Li Lei mended the broken bike this morning.→The broken bike was mended by Li Lei this morning. 3. He has written two novels so far.→Two novels have been written by him so far. 4. They will plant ten trees tomorrow.→Ten trees will be planted by them tomorrow. 5. Lucy is writing a letter now.→A letter is being written by Lucy now. 6. You must lock the door when you leave.→the door must be locked when you leave.
⑶ 求文档: 初中英语时态讲解
一、动词时态
英语的动词在表示不同时间里发生的行为或存在的状态时,要用不同的形式来表示。英语的时态从时间上来看,可分为“现在”,“过去”,“将来“和”过去将来“四大类。动词共有十六种不同时态,但常用的时态有八种。
(一) 一般现在时
一般现在时表示经常发生的动作(习惯性的动作)或存在的状态,句中常用always, usually, often, sometimes, seldom, never, every day等时间状语。
例如:
1) He goes to school at seven o’clock every day.
2) The sun rises in the east.
(二) 一般过去时
一般过去时主要用于表示过去的动作、行为或状态,句中常有yesterday, ago, in 1989, once, last week (month, year), at that time, just now 等时间状语。
例如:
1) He was born in 1989.
2) I used to play football when I was young.
(三)一般将来时
英语动词表示将来时间有多种形式,其共同特点是句中常有表示将来时间的状语,如:tomorrow, next week, in a week等
例如:
1) We will visit the science museum next week.
2) We are going to discuss the problem tomorrow.
(四)现在进行时
现在进行时表示现在时刻正在进行的动作或表示现阶段正在做的事情,句中常与now, at this moment等时间状语连用。
例如:
1) The boy is playing video games.
2) His father is writing a novel these days.
(五)现在完成时
现在完成时表示从过去某一时刻开始一直延续到现在的动作或状态,或还要延续下去,句中常用since, for, yet, already等表示一段时间的状语。
例如:
1) Great changes have taken place in China since 1980.
2) He has been in this factory for five years.
(六)过去进行时
过去进行时表示在过去某个时候正在进行的动作或过去某个阶段正在做的事情。
例如:
1) He was reading an interesting book this time yesterday.
2) When I came in, they were having supper.
(七)过去完成时
表示在过去某个时刻前已经发生的动作或状态,或者从过去某个时刻开始一直延续到过去另一时刻的动作或状态。
例如:
1) By the end of last year, we had learned more than 2,000 English words.
2) My teacher had taught in that school for ten years before she came here.
(八)过去将来时
过去将来时表示从过去的观点来预计以后要发生的动作或存在的状态,这种时态常用于宾语从句当中,主句中的谓语动词一般是过去时。
例如:
1) He said that he would study harder than before.
2) He didn’t tell me when he would go.
二、被动语态
(一)被动语态的构成
英语动词的被动语态由助动词be+及物动词的过去分词构成。助动词be必须与主语的人称和数保持一致,并有时态的变化。例如:
The man was fooled by the two boys.
The book has been translated into several languages.
(二)被动语态的用法
(1)动作的执行者不知道是谁或难以说明时常用被动语态。例如:
Street lights are often turned on at six in winter.
The new test book will be used next term.
(2)当动作的承受者比起动作的执行者来说更能引起人们的关心而需要加以强调时,要用被动语态。例如:
This kind of bicycle is not sold in our shop.
The thief was caught by a policeman yesterday.
(3)含有双宾语的句子,主动句中的间接宾语或者直接宾语都可变为被动语态中的主语,另一个保留不变。变为主语的若是主动句中的直接宾语,间接宾语前则需加介词to 或for。
例如:The pianist gave the pupils some advice.
间接宾语 直接宾语
→The pupils were given some advice by the pianist.
→Some advice was given to the pupils by the pianist.
(4)在主动语态句中动词make、have、let、see、watch、hear、feel等后接动词不定式作宾语补足语,动词不定式不加to。但变成被动语态时后面的不定式都须加上to。
例如:The boss made them work ten hours a day.
→They were made to work ten hours a day by the boss.
A boy saw him enter the house.
→He was seen to enter the house.
(三)被动语态的时态
(1) 一般现在时
构成:助动词am/ is/are + 动词的过去分词
例如:This kind of car is made in Shanghai.
English is spoken in many countries.
(2) 一般过去时
构成:助动词was/were + 动词的过去分词
例如:The bridge was built in 1992.
Was this novel written by his father?
(3) 一般将来时
构成:will be 或be going to + be + 动词的过去分词
例如:These books are going to be posted tomorrow.
The baby will be taken good care of in the hospital.
(4) 现在完成时
构成:助动词have/has + been + 动词的过去分词
例如:Has his work been finished?
We haven’t been invited to the party.
(5) 现在进行时
构成:be + being + 动词的过去分词
例如:A new bridge is being built in my hometown.
The problem is being discussed by the students.
补充说明:带有情态动词的被动语态
构成:情态动词 + be + 动词的过去分词
例如:Can this walkman be repaired here?
Your composition must be handed in tomorrow.
⑷ 急求初中英语语法,时态的教学视屏(如果有句型,结构的就最好了)
11.1 一般现在时的用法
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.
Shanghai lies in the east of China.
3) 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..
4) 现在时刻的状态、能力、性格、个性。
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.
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。
11.2 一般过去时的用法
1)在确定的过去时间里所发生的动作或存在的状态。
时间状语有:yesterday, last week, an hour ago, the other day, in 1982等。
Where did you go just now?
2)表示在过去一段时间内,经常性或习惯性的动作。
When I was a child, I often played football in the street.
Whenever the Browns went ring their visit, they were given a warm welcome.
3)句型:
It is time for sb. to do sth "到……时间了" "该……了"
It is time sb. did sth. "时间已迟了" "早该……了"
It is time for you to go to bed. 你该睡觉了。
It is time you went to bed.你早该睡觉了。
would (had) rather sb. did sth.表示'宁愿某人做某事'
I'd rather you came tomorrow.
4) wish, wonder, think, hope 等用过去时,作试探性的询问、请求、建议等。
I thought you might have some. 我以为你想要一些。
比较:
一般过去时表示的动作或状态都已成为过去,现已不复存在。
Christine was an invalid all her life.
(含义:她已不在人间。)
Christine has been an invalid all her life.
(含义:她现在还活着)
Mrs. Darby lived in Kentucky for seven years.
(含义:达比太太已不再住在肯塔基州。)
Mrs. Darby has lived in Kentucky for seven years.
( 含义:现在还住在肯塔基州,有可能指刚离去)
注意: 用过去时表示现在,表示委婉语气。
1)动词want, hope, wonder, think, intend 等。
Did you want anything else?
I wondered if you could help me.
2)情态动词 could, would.
Could you lend me your bike?
11.3 used to / be used to
used to + do:"过去常常"表示过去习惯性的动作或状态,但如今已不存在。
Mother used not to be so forgetful.
Scarf used to take a walk. (过去常常散步)
be used to + doing: 对……已感到习惯,或"习惯于",to是介词,后需加名词或动名词。
He is used to a vegetarian diet.
Scarf is used to taking a walk.(现在习惯于散步)
典型例题
---- Your phone number again? I ___ quite catch it.
---- It's 69568442.
A. didn'tB. couldn'tC. don'tD. can't
答案A. 本句虽没有明确的时间状语,但从语意上看 出,在听的时候没有听懂这个动作发生在过去,因此应用过去时。
11.4 一般将来时
1)shall用于第一人称,常被will 所代替。
will 在陈述句中用于各人称,在争求意见时常用于第二人称。
Which paragraph shall I read first.
Will you be at home at seven this evening?
2)be going to +不定式,表示将来。
a. 主语的意图,即将做某事。
What are you going to do tomorrow?
b. 计划,安排要发生的事。
The play is going to be proced next month。
c. 有迹象要发生的事
Look at the dark clouds, there is going to be a storm.
3) be +不定式表将来,按计划或正式安排将发生的事。
We are to discuss the report next Saturday.
4)be about to +不定式,意为马上做某事。He is about to leave for Beijing.
注意:be about to 不能与tomorrow, next week 等表示明确将来时的时间状语连用。
11.5 be going to / will
用于条件句时, be going to表将来
will表意愿
If you are going to make a journey, you'd better get ready for it as soon as possible.
Now if you will take off your clothes, we will fit the new clothes on you in front of the mirror.
11.6 be to和be going to
be to 表示客观安排或受人指示而做某事。
be going to 表示主观的打算或计划。
I am to play football tomorrow afternoon. (客观安排)
I'm going to play football tomorrow afternoon. (主观安排)
11.7 一般现在时表将来
1)下列动词:come, go, arrive, leave, start, begin, return的一般现在时表将来。这主要用来表示在时间上已确定或安排好的事情。
The train leaves at six tomorrow morning.
When does the bus star? It stars in ten minutes.
2)倒装句,表示动作正在进行,如:
Here comes the bus. = The bus is coming.
There goes the bell. = The bell is ringing.
3)在时间或条件句中。
When Bill comes (不是will come), ask him to wait for me.
I'll write to you as soon as I arrive there.
4)在动词hope, take care that, make sure that等后。
I hope they have a nice time next week.
Make sure that the windows are closed before you leave the room.
11.8 用现在进行时表示将来
意为:"意图"、"打算"、"安排"、常用于人。常用词为 come, go, start, arrive, leave, stay等。
I'm leaving tomorrow.
Are you staying here till next week?
11.9 现在完成时
现在完成时用来表示之前已发生或完成的动作或状态,其结果的确和现在有联系。动作或状态发生在过去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。其构成: have (has) +过去分词。
11.10 比较过去时与现在完成时
1)过去时表示过去某时发生的动作或单纯叙述过去的事情,强调动作;现在完成时为过去发生的,强调过去的事情对现在的影响,强调的是影响。
2)过去时常与具体的时间状语连用,而现在完成时通常与模糊的时间状语连用,或无时间状语。
一般过去时的时间状语:
yesterday, last week,…ago, in1980, in October, just now, 具体的时间状语
共同的时间状语:
this morning, tonight,this April, now, once,before, already, recently,lately
现在完成时的时间状语
for, since, so far, ever, never, just, yet,till / until, up to now, in past years, always,
不确定的时间状语
3)现在完成时可表示持续到现在的动作或状态,动词一般是延续性的,如live, teach, learn, work, study, know.
过去时常用的非持续性动词有come, go, leave, start, die, finish, become, get married等。
举例:
I saw this film yesterday.
(强调看的动作发生过了。)
I have seen this film.
(强调对现在的影响,电影的内容已经知道了。)
Why did you get up so early?
(强调起床的动作已发生过了。)
Who hasn't handed in his paper?
(强调有卷子,可能为不公平竞争。)
She has returned from Paris.
她已从巴黎回来了。
She returned yesterday.
她是昨天回来了。
He has been in the League for three years.
(在团内的状态可延续)
He has been a League member for three years.
(是团员的状态可持续)
He joined the League three years ago.
( 三年前入团,joined为短暂行为。)
I have finished my homework now.
---Will somebody go and get Dr. White?
---He's already been sent for.
句子中如有过去时的时间副词(如 yesterday, last, week, in 1960)时,不能使用现在完成时,要用过去时。
(错)Tom has written a letter to his parents last night.
(对)Tom wrote a letter to his parents last night.
11.11 用于现在完成时的句型
1)It is the first / second time…. that…结构中的从句部分,用现在完成时。
It is the first time that I have visited the city.It was the third time that the boy had been late.
2)This is the… that…结构,that 从句要用现在完成时.
This is the best film that I've (ever) seen.
这是我看过的最好的电影。
⑸ 初中英语的时态,谁能给我讲一下,老师讲的我没听懂,还请高人详细的给我讲一下 十分感谢
哪种时态最好说清楚,这样可以给你详细讲一下
⑹ 初中英语所有时态讲解视频
你可以在网络 谢梦媛的视频里找下,那里有英语比较完成的讲解视频
⑺ 初中英语八大时态
初中英语中的八个基本时态,即:一般现在时、一般过去时、一般将来时、过回去将来答时、现在进行时、过去进行时、现在完成时、过去完成时。
时态是一种动词形式,表示经常、反复发生的动作或行为,不同的时态用以表示不同的时间与方式。在语法里,时或时态表示行为发生的时间和说话时的关系。一般分为过去式、现在式、将来式,通常也有与表示动作进行或终止的进行式和完成式等体貌一起相连用的情况。
(7)初中英语时态视频讲解扩展阅读
一般过去时与现在完成时的转换:
在现在完成时中,延续性动词能与表示一段时间的状语连用,瞬间动词却不能。但是,可用别的表达方式:①瞬间动词用于“一段时间 + ago”的一般过去时的句型中;②瞬间动词可改成与之相对应的延续性动词及短语,与一段时间连用。
一般现在时与现在进行时的转换
在一般现在时中,at加上名词表示“处于某种状态”,如at work(在工作),at school(上学、上课)等。此短语可与进行时态转换。
现在进行时与一般将来时的转换
在现在进行时态中go,come,leave,start,arrive等动词常与表示将来的时间状语连用表示将要发生的动作。
⑻ 初中英语的所有时态要详细的说出来
概念:经常、反复发生的动作或行为及现在的某种状况。
时间状语: always, usually, often, sometimes, every week (day, year, month…), once a week, etc.
基本结构:①be动词;②行为动词
否定形式:①am/is/are+not;②此时态的谓语动词若为行为动词,则在其前加don't,如主语为第三人称单数,则用doesn't,同时还原行为动词。
一般疑问句:①把be动词放于句首;②用助动词do提问,如主语为第三人称单数,则用does,同时,还原行为动词。
二、一般过去时:
概念:过去某个时间里发生的动作或状态;过去习惯性、经常性的动作、行为。
时间状语:ago, yesterday, the day before yesterday, last week(year, night, month…), in 1989, just now, at the age of 5, one day, long long ago, once upon a time, etc.
基本结构:①be动词;②行为动词
否定形式:①was/were+not;②在行为动词前加didn't,同时还原行为动词。
一般疑问句:①was或were放于句首;②用助动词do的过去式did 提问,同时还原行为动词。
三、现在进行时:
概念:表示现阶段或说话时正在进行的动作及行为。
时间状语:now, at this time, these days, etc.
基本结构:am/is/are+doing
否定形式:am/is/are+not+doing.
一般疑问句:把be动词放于句首。
四、过去进行时:
概念:表示过去某段时间或某一时刻正在发生或进行的行为或动作。
时间状语:at this time yesterday, at that time或以when引导的谓语动词是一般过去时的时间状语等。
基本结构:was/were+doing
否定形式:was/were + not + doing.
一般疑问句:把was或were放于句首
五、现在完成时:
概念:过去发生或已经完成的动作对现在造成的影响或结果,或从过去已经开始,持续到现在的动作或状态。
时间状语:recently, lately, since…for…,in the past few years, etc.
基本结构:have/has + done
否定形式:have/has + not +done.
一般疑问句:have或has。
六、过去完成时:
概念:以过去某个时间为标准,在此以前发生的动作或行为,或在过去某动作之前完成的行为,即“过去的过去”。
时间状语:before, by the end of last year(term, month…),etc.
基本结构:had + done.
否定形式:had + not + done.
一般疑问句:had放于句首。
七、一般将来时:
概念:表示将要发生的动作或存在的状态及打算、计划或准备做某事。
时间状语:tomorrow, next day(week, month, year…),soon, in a few minutes, by…,the day after tomorrow, etc.
基本结构:①am/is/are/going to + do;②will/shall + do.
否定形式:①was/were + not; ②在行为动词前加didn't,同时还原行为动词。
一般疑问句:①be放于句首;②will/shall提到句首。
八、过去将来时:
概念:立足于过去某一时刻,从过去看将来,常用于宾语从句中。
时间状语:the next day(morning, year…),the following month(week…),etc.
基本结构:①was/were/going to + do;②would/should + do.
否定形式:①was/were/not + going to + do;②would/should + not + do.
一般疑问句:①was或were放于句首;②would/shou