大学英语语法学习.docx

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1、一、英语动词的时态(-)英汉两种语言在时态表达方式上的差异：英语的词类与汉语的不同.汉语词类形态稳定，比如书这个字，一本书、三本书都一样，没有词形变化.英语就不同了，book, books仅从词形上就能知道是单数还是复数。动词是英语中变化最多、最复杂的词类。有人说，学好英语就是学好动词，此言甚是。同一个动作或状态分别在不同时间发生或存在，表达这个动作或状态的动词就要用不同的形式，这就是时态。例如：在“中国是个伟大的国家。和中国曾经是世界上最伟大的国家。”这两句话当中，汉语的是没有变化，而是用曾经这个词来表达时间的不同.China is a great country.中国是个伟大的国家。Chi

2、na was the greatest country in the world.中国曾经是世界上最伟大的国家。在这几句中，动词be的形态变了，表示的时间变了，但意义没有变化.再如，他经常帮助我。他昨天帮助我了。和他一直在帮助我。这三句话当中，汉语的“帮助没有任何变化，而是用经常、一直和昨天分别表达出时间的区别.英语就不同，它必须用动词本身的形态变化来完成任务。He often helps me.他经常帮助我。He helped me yesterday.他昨天帮助我了。He has been helping me.他一直在帮助我。在这几句中，动词help的形态变了，表示的时间变了，但意义没有

3、变化。(二)英语动词的形式:英语的时态是通过动词的变化来体现的。因此，了解动词的形式及其变化规律非常重要。英语的实义动词有以下五种形式：(1)动词原形:动词原形在句子中形式不变.主要用于主语为非第三人称单数的一般现在时，情态动词之后，或根据语法规定必须用动词原形的其他情况。(2)一般现在时第三人称单数形式(简称现单三):主要用于主语为第三人称单数的一般现在时。(3)过去式：主要用于一般过去时.(4)现在分词：主要用于进行时态，或语法规定的其他情况。(5)过去分词：主要用于完成时态，或语法规定的其他情况。这里提到的语法规定的其他情况我们在以后的讲座中会详细介绍。下面把这些动词形式的构成说明一下.

4、动词一般现在时第三人称单数(现单三)的构成，见下表：词尾变化(规律与名词变复数相同，读音也与名词复数相同)举例一般加-s Helphelps; readreads在 ch, sh, s, x 或元音字母 o 后面加-es Do, fix, pass, push, teach does, fixes, passes, pushes, teaches以辅音字母加y结尾的词，变y为i再加-es Try, study tries, stuides与名词变复数形式相同，读音也相同。动词过去式和过去分词，大多数是动词原形+ ed构成，这是规则动词.规则动词的拼写和读音规则如下表：词尾变化举例词尾读音动词后

5、面加-ed Helphelped WorkworkedWatchwatched清辅音之后读出Wantwanted need-needed t,d之后读tTurnturned play-played元音和浊辅音（d除外）之后读d以不发音的e结尾的词，加-d LovelovedServe-served结尾是辅音字母+y时，丫变1,再加-ed StudystudiedTry-tried结尾只有一个辅音字母的重读闭音节词，双写辅音字母再加-ed StopstoppedDropdropped清辅音之后读t不规则动词的过去式和过去分词有其特殊变化形式，需要个别记忆，同时也要善于发现不规则中的规则，即某些字

6、母组合的不规则动词有一定的规律。如：weep-wept, sleep-slept, sweep* swept现在分词一律由动词原形加-ing构成，规则如下表：词尾变化举例一般加-ing Looklooking, trytrying以不发音的e结尾的词，去掉e ,再加-ing Writewriting, dancedancing以一个辅音字母（x除外）词尾的重读闭音节词，先双写词尾的辅音字母，再加-ing Begin-beginning, swimswimming,Runrunning, sitsitting以-ie 结尾的词,变 ie 为 y ,再加-ing Die-dying, lielyi

7、ng为了学习的方便，人们把时间分为四个阶段：现在、过去、将来、过去将来二英语动词所表示的动作在以上每个时间段中分别有四种状态：一般、进行、完成和完成进行.因此我们便有了四四一I六个时态。不同的时态有不同的变化形式。以do为例，列表如下：时态一般进行完成完成进行现在时 Does; do Am/is/are+doing Has/have+done Has/have+been doing过去时 Did Was/were+doing Had done Had been doing将来时 Shall/will+do Shall/will be +doing Shall/will have + done

8、Shall/will+have been doing过去将来时 Should/would/+do Would/should + be doing Should/would + have done Would/should + have been doing时态就是通过动词的形态变化，来表达动作发生的时间（现在、过去、将来、过去将来）及所处的状态（一般、进行、完成、完成进行工比如在They are doing their exercises.这个句子中，动词由原形do变成are doing的形态，说明这个事情是发生在现在、并处于正在进行的状态当中，所以叫现在进行时；在They have done

9、 their exercises.这句中,动词由原形do变成have done的形态,说明这个事情是发生在现在、并处于完成的状态，所以叫现在完成时；在They always dotheir exercises.中，动词用原形d。的形态，说明这个事情是发生在现在、并且是一般情况下永远如此，所以叫一般现在时。在这三句话中，动词d。虽然用了不同的形态，其意义没有变化，而是事情发生的时间和状态变了。其余类推.16个时态中，常用的有12个：一般现在时、一般过去时、一般将来时、过去将来时、现在进行时、过去进行时、将来进行时、现在完成时、过去完成时、将来完成时、现在完成进行时和过去完成进行时.其他时态很少单

10、独使用。下面我们把各种时态的构成和用法做一个全面的介绍。1、一般现在时(1)构成：通常以动词原形表示。主语为第三人称单数时，用现单三形式。动词be和have(表示拥有)各人称的单数形式为：第一人称单数第二人称单数第三人称单数Have Have Have HasBe Am Are is一般现在时的否定式、疑问式和简单回答形式如下：动词be与have (表示拥有):否定式直接把not放在动词之后，疑问式直接把动词放在主语之前，见下表：否定式疑问式Be Have Be HaveI am not (V m not). I have not (haven t). Am i.? Have i.?You a

11、re not (aren* t). You have not (haven t). Are you.? Have you.?He is not (isn/ t). He has not (hasn* t). Is he .? Has he .?动词be的否定疑问式和简单回答：否定疑问式肯定回答否定回答Am I not (arenf t i).? Yes, you are. No, you aren1 tAre you not (aren* t you).? Yes, I am. No, Y m not.Is he not (isnz t he).? Yes, he is. No, he isn

12、/ t 动词be与have(表示拥有)：否定式直接把not放在动词之后，疑问式直接把动词放在主语之前，见下表：否定式疑问式Be Have Be HaveI am not (f m not). I have not (haven* t). Am i.? Have I .?You are not (aren* t). You have not (haven* t). Are you .? Have you.?He is not (isnf t). He has not (hasn1 t). Is he .? Has he .?动词have(表示拥有)的否定疑问式和简单回答：否定疑问式肯定回答否定回

13、答Have I not (haven* t i).? Yes, you have. No, you haven* t.Have you not (haven t you).? Yes, I have. No, I haven1 t.Has he not (hasn1 t he).? Yes, he has. No, he hasn t.注意：have作为行为动词则只能按照行为动词的规则变化。行为动词(以study为例)一般现在时的否定式、疑问式和简单回答(注意要加助动词do/does)否定式疑问式I do not (don t) study Do I studyYou do not (don

14、t) study Do you studyHe does not (doesn* t) study Does he study否定疑问句式简单回答(肯定;否定)Do I not (Don11) study.? Yes, I do. No, I don t. Do you not (Don, t you) study.? Yes, you do. No, you don t.Does he not (Doesn# t he) study.? Yes, he does. No, he doesn* t.(2)用法：1)一般现在时表示现状、性质、状态和经常的或习惯性的动作。He has an und

15、e.他有个叔叔。Autumn follows summer.夏天之后是秋天。It is fine tod ay.今天天气好。You look pale.你脸色苍白。He is good at music.他擅长音乐。He knows a lot of English.他英语懂的很多。这些动词可与 often, usually, always, sometimes, every day once a week, on Sundays, never等表示经常性或习惯性的时间状语连用。例如：Do you often go to the cinema?你经常去看电影吗？He always helps

16、others.他总是帮助别人。Tom does not study as hard as Jane.汤姆在学习方面不如简努力。My father never takes a bus; he walks to his off ice.我父亲从来不坐公共汽车，他走着去上班。2)一般现在时表示客观现实或普遍真理。Japan lies to the east of China.日本在中国的东边。The sun rises in the east.太阳从东方升起。A horse is a useful animal.马是一种有用的动物。Water boils at 100.水在摄氏一百度时沸腾。Octo

17、ber 1st is our National Day.十月一日是我们的国庆节。When Winter comes, can Spring be far behind?冬天来了，春天还会远吗？（英国浪漫主义诗人雪莱的名句。）Beauty is truth, truth beauty.美即真理，真理即美。（英国浪漫主义诗人济慈的名句。）3）少数动词如go, come, leave, arrive, begin, start, be等的一般现在时可以表示按规定、计划或安排预计要发生的事情。The plane takes off at six past five.飞机将于六点零五分起飞。Tomorr

18、ow is Sunday.明天是星期天。Our summer vacation begins in early July.我们的暑假七月初开始。4）在时间和条件状语从句中可用一般现在时代替一般将来时。F II let you know as soon as I hear from him.我一接到他的信就告诉你。He II go if it is fine tomorrow.如果明天天气好，他就去。I shall be away when he arrives.等他到了我就不在了。We shall not begin the discussion until he arrives.等他来了，我

19、们再开始讨论。5）在某些以here, there开头的句子中用一般现在时表示现在发生的动作。Here comes the bus.汽车来了。There goes the bell.铃响了。Here they come.他们来了。6）在进行体育比赛过程中解说员叙述迅速、短暂动作时，可用一般现在时表示正在进行的或刚刚发生的动作。例如：Bater passes the ball to Yao Ming. Yao shoots ? A fine shot!巴特尔把球传给姚明，姚明投篮，好球！7）在戏剧、电影等的剧本或图片的说明文字中，可用一般现在时表示动作。例如： When the curtain r

20、ises, Juliet is sitting at her desk. The phone rings. She picks it up and listens quietly.幕启，朱丽叶坐在桌旁。电话铃响，她拿起听筒，静静地听着。Now please translate the following sentences into English:1）见到你我很高兴。I am very glad to see/meet you.2 ）李华只懂一点英语。Li Hua only knows a little English.3 ）他们每天晚上看电视。They watch TV every eve

21、ning.4）我坐飞机走，明天早晨六点到那里。I leave by air and arrive there at six tomorrow morning.5）你多久给你的母亲写一封信？How often do you write to your mother?6 ）你的朋友看起来很年轻。Your friend looks very young.7 ）汤姆经常在床上看书。Tom often reads in bed.8）你在发音方面有困难吗？Do you have any trouble with pronunciation?2、现在进行时(1)构成：由助动词be +现在分词构成。其中be有

22、人称和数的变化，有三种形式：第一人称单数用am,第三人称单数用is,其他用are.现在进行时的否定式是：直接在助动词be后面加上not;疑问式是：把助动词be提到主语之前。以study为例：否定式疑问式I am not studying Am I studying?You are not studying, Are you studying?He is not studying. Is he studying?(2)用法：1)现在进行时表示说话时正在发生或进行着的动作。例如：I am writing a letter.我正在写信。They are learning English.他们正在学习

23、英语。Is it raining now?现在下雨吗？有时表示现阶段正在进行而说话时不一定正在进行的动作。例如：More and more people are paying attention to their health.越来越多的人在关注健康。He is translating a novel.他在翻译一本小说。2 )有些动词，如come, go, leave, return, arrive, begin, start等，它们的现在进行时可表示不远的将来要发生的事情。例如：Flight 1095 is landing soon.第1095号航班马上要着陆了。I know the end

24、 is coming,我知道马上就要结束了。Mary is coming back from her visit to Shanghai.玛丽很快就要从上海访问回来了。3 ）现在进行时常与always, continually, constantly等副词连用，表示反复出现的或习惯性的动作。这种用法常表示说话人的某种感情，如赞扬、遗憾、讨厌或不满等。例如：He is always asking questions.他老爱提问题。You are always saying that sort of thing.你老爱说那样的话。She is always complaining.她总是喜欢抱怨。

25、4）在一定的上下文中，后一句的动词谓语用现在进行时与前一句的一般现在时相配合，可用以体现原因、结果、目的等意味。即前一句用一般现在时动词谓语表述现在发生的事实,而后一句用现在进行时动词谓语来阐明这一事实的原因、结果、目的等.例如：He frowns. He is worrying about his boy.他皱着眉头，因为他在为他的孩子担心。She criticizes him. She is trying to correct his bad habits,她批评他，想纠正他的坏习惯。She lets her child have his own way. She is spoiling

26、him. JtiM7管她的孩子。这是在把他惯坏了。（结果）翻译练习：1）新生下星期到.The new students are arriving next week.2）那边出了什么事？What is happening over there?3）那辆汽车怎么停在门外?Why is that car parking (stopping) outside the gate?4 )他们正在看电视里的足球赛。They are watching a football match on television.5 )他老爱开玩笑。He is always joking.6)我们从国外进口机器，我们在学习新

27、的科学技术。We import machines from abroad; we are learning new science and technology.3、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：否定式疑问式I have not (haven* t) studied. Have I studied.?You have not (haven1 t) studie

28、d. Have you studied.?He has not (hasnf t) studied. Has he studied.?否定疑问式简单回答(肯定;否定)Have I not (Haven1 t i) studied.? Yes, you have. No, you haven t.Have you not (Haven* t you) studied.? Yes, I have. No, I haven1 t.Has he not (Hasn* t he) studied.? Yes, he has. No, he hasn1 t.（2）用法：1）现在完成时通常表示在说话之前已经

29、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。而一般过去时也表示动作已经完成，但强调的是过去发生了某一动作这样一个事实。有的同学觉得这种说法比较难以理解，因为任何过去的动作对现在都有影响，很难判断用一般过去时或现在完成时。事实上，这种说法没有把现在完成时与一般过去时的根本区别说清楚。如果没有说明动作发生的具体时间，则一般用现在完成时；如果说明了动作发生的具体时间，带有表示过去的时间状语，则用一般过去时。例如：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

30、 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 today, these days, recently, now, lately, for., since., in the last/past two weeks/years/days/months, just 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

31、has been with us since Monday.她从星期一就一直和我们在一起。注意：1）表示短暂意义的动词如open, go, come, die, arrive, leave, lose, fall等,在完成时当中不能和包括现在在内的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： xHe has come here for 2 weeks.xThe old man has died for 4 months.xThey have left only for 5 minutes.以上三句话可以改为：It s two weeks since he came he

32、re. He has been here for 2 weeks.It s 4 months since the old man died.They have been away only for 5 minutes2) have (has) been 和 have (has) gone 的区另(J ：表示曾至U过某地要用have (has) been”;表示已经去某地要用have (has) gone。试比较:Where has he been?他刚才到哪里去了？(已经回来了)Where has he gone?他上哪儿去了？(人不在)They have been to Canada.他们到

33、过加拿大。(现在已经不在加拿大)They have gone to Canada.他们到加拿大去了。(可能在路上和已经到加拿大).3现在完成时不能和明确指出时间的状语如yesterday, last year, in 1976Z two days ago, just now, when I came in等连用,但可以和不明确指出时间的状语，如a卜eady, yet, sometimes, always, often； before, lately, recently, once, twice, ever, never 等连用。伤！J 如：She has already come.她已经来了。

34、I haven* t read it yet.我还没读过这个。I have met him before.我从前曾见过他。Ma Hong has always been a good student.马红一直是个好学生。I have often seen him in the street.我经常在街上看见他。They have never been to Yan an.他们从未去过延安。I havent seen him lately.我近来没看到他。翻译练习：1）他们已经答复了我们的信。They have already answered our letter.2）自去年以来我就未遇见过王

35、英。I haven t met Wang Ying since last year.3）他刚把他的名字告诉我。He has just told me his name.4）你到过杭州吗？到过.我一个月以前去过那里.我去过两三次。Have you ever been to Hangzhou? Yes, I have. I went there a month ago. I have been there two or three times.5）他在海加主了很长时间了。He has lived abroad for a very long time.4、现在完成进行时（1）构成：第三人称单数由h

36、as been +动词的现在分词；其他人称和数由have been +动词的现在分词。（2）用法：1）表示动作从过去开始一直延续到现在，可能刚刚终止，也可能仍然在进行。I ve been waiting for you since eight o clock in the morning.我从早上8点钟一直在等你。It has been raining for three hours.雨一直下了三个小时了。What book have you been reading recently?最近你一直在读什么书？2）有些动词不能用于现在进行时，如be, have, like, love, know

37、, see, hear等，这些词同样也不能用于现在完成进行时。如：I haven t seen you for ages.我好久没见到你了。I have loved her for a long time.我一直爱她。I have known him for a long time.我认识他很久了.3）现在完成时表示到现在为止已经完成的动作，强调结果；而现在完成进行时强调动作的持续性，强调“一直，往往表示动作仍未结束。如：I have been reading this novel.我一直在读这本小说。（我仍然在读）I have read two novels.我已读过两本小说。（可能刚读过，

38、也可能很久以前读的）I have been writing letters.我一直都在写信。I have written three letters.我已经写完三封信了。Now we have cleaned the room, we can move the things in.既然我们已经打扫完房间，我们可以把东西搬进来了.We ve been cleaning the classroom, but we haven t finished yet.我。直在打扫教室，但还没干完。翻译练习：1）你整个早晨在学习什么？What have you been studying all the mor

39、ning?2)你已经参加过期末考试了吗？Have you taken your final examination?3)学生们一直在为高考准备功课。The students have been preparing their lessons for the college entrance examination.4)我们从小就认识。We have known each other since childhood.5)1949年以来，王先生一直在这所学校教物理。Mr. Wang has been teaching physics in this school since 1949.6)雨一直下

40、了一个星期。It has been raining for a week.5、一般过去时(1)构成：一般过去时通常由动词过去式表示。一般过去时的否定式、疑问式和简单回答形式要用助动词d。的过去式did,同时注意实义动词要用原形。以study为例，其否定式、疑问式和简单回答形式如下：否定式疑问式I did not (didn t) study. Did I study.?You did not (didn t) study. Did you study.?He did not (didn t) study. Did he study.?否定疑问式简单回答(肯定/否定)Did I not (Did

41、n*11) study.? Yes, you did. No, you didn t.Di you not (Didn* t you) study.? Yes, I did. No, I didn t.Did he not (Didn t he) study.? Yes, he did. No, he didn t.(2)用法：一般过去时动词主要表示过去某一时刻或某一段时间内发生的动作或情况，其中包括习惯性动作，通常与表示过去的时间状语连用。The train arrived ten minutes ago.火车十分钟前就到了。What time did you get up yesterda

42、y morning?昨天早晨你是什么时候起床的?I used to go to school early.我过去总是很早去学校。He always went to work by bus.他过去老乘车去上班。Li Hong lived in Shanghai for ten years when she was young.李红小时候在上海住过十年.(有的同学认为出现了 for some time之类的时间状语，就要用完成时态.这种看法不完全正确。如果指的是在过去某事持续了一段时间，就要用一般过去时)注意：在动词用一般过去时的句子里通常有时间状语，表明动作发生的时间。如该句中没有时间状语，那么

43、上下文中一定有表明过去的时间状语或可以体现动作或情况发生在过去”这一概念.翻译练习：1)他昨天晚上离开这里到上海去了。He left for Shanghai yesterday evening.2)你昨天早上是什么时候醒来的？我六点钟醒的，可是到七点才起床。What time did you wake up yesterday morning? I woke up at six o clock, but did not get up until 7.3）星期一有个外国朋友来参观过我们学校了。A foreign friend visited our school on Monday.4）我上中

44、学的时候总是六点钟起床。I used to get up at six when I was at middle school.5）周总理曾经常在这里办公。Premier Zhou used to work here.6、过去进行时（1）构成：由助动词be的过去式+现在分词构成。其中be有人称和数的变化，第一、第三人称单数用was ,其他用were.1）过去进行时动词主要表示在过去某一时刻或某一段时间内正在进行或持续进行的动作。过去进行时经常与过去时配合使用。例如：This time yesterday, we were having an English lesson.昨天这个时候，我们正在

45、上英语课。The teacher was giving us a lesson when Tom walked into the room.老师在给我们上课时，汤姆走进教室。While we were having supper, all the lights went out,我们吃饭的时候,灯灭了。He was reading while she was setting the table.她摆桌子时，他在读书。It was getting dark. The wind was rising.天渐渐黑下来了。风势增强了。2）过去进行时动词常用always, continually, fre

46、quently等词连用，表示过去经常发生的行为。这种用法表明带有的感情色彩。例如： The two brothers were frequently quarreling when they were young.两兄弟小时候常吵架。In Qing Dynasty, China was always making concessions to western powers.清朝时,中国总是对西方列强妥协。翻译练习：1）我记得他哥哥上小学时经常在课堂上提问题。I remember his brother was constantly asking questions in class when he was at primary school.2）我母亲做饭的时候，我父亲在抽烟.While my mother was cooking, my father was smoking.3）我正在写东西，小明把灯关了。When I was writing, Xiao Ming turned off the light.4）夕阳西下，天渐渐黑下来了。The sun was setting. It was getting dark.5）你走进他们的房间时，他们正在听广播吗？Were they listening to the broadcast when you