初中英语现在完成时小结.docx
初中英语现在完成时小结 英语园地 2008-03-04 22:28:28 阅读16 评论1 字号：大中小 订阅 （1）构成:主语 + have/has + 过去分词 + 其他。 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) (2) 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 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。 * 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。 * 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。 * 以so far/before等为标志 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。 They've seen that TV play before.他们以前看过那部电视剧了。 (3)表示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。常以“for”， “ since”及 “how long”为标志。for 后接 时间段， since 后接 过去时间点 或 过去式的句子。此种情况的完成时态的动词多用延续性动词。 He has been away for two years.他已走了两年。(for+时间段) He has been an English teacher since 1992.自从1992年以来他一直当英语教师。 How long have you been in the city? 你在这个城市呆了多久了？ 常见瞬间动词与延续动词的转换： come / go / arrive/ get to/reach - be in s.p. leave be away buy have die be dead borrow keep join sth. be in sth. come back be back begin to do sth do sth ( begin to work work ) 现在完成时的时间状语 for, since, so far, ever, never, just, yet, up to now, in past 3 years, always,不确定的时间状语 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。 This is the first time (that) I've heard him sing. 这是我第一次听他唱歌。 典型例题 (1) -Do you know our town at all? -No, this is the first time I _ here. A. was B. have been C. came D. am coming 答案B. This is the first time 后面所加从句应为现在完成时，故选B。 (2) -Have you _ been to our town before? -No, it's the first time I _ here. A. even, come B. even, have come C. ever, come D. ever, have come 答案D. ever意为曾经或无论何时，反意词为never，此两词常用于完成时。 This is the largest fish I have ever seen. It is / was the first time +that-clause 的句型中，从句要用完成时。 注意：非延续性动词的否定形式可以与表示延续时间的状语连用。即动作不发生的状态是可以持续的。 （错）I have received his letter for a month. （对）I haven't received his letter for almost a month. 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. 典型例题 The students _ busily when Miss Brown went to get a book she _ in the office. A. had written, left B，were writing, has left C. had written, had left D. were writing, had left 答案D. "把书忘在办公室"发生在"去取书"这一过去的动作之前，因此"忘了书"这一动作发生在过去的过去，用过去完成时。句中when表示的是时间的一点，表示在"同学们正忙于"这一背景下，when所引导的动作发生。因此 前一句应用过去进行时。 注意： had no when 还没等 就 had no sooner than 刚 就 He had no sooner bought the car than he sold it.1、一般现在时 (1)一般现在时表示没有时限的持久存在的动作或状态或现阶段反复发生的动作或状态，常和副词usually，often，always sometimes， regularly，near，occasionally，every year, every week等连用。例如： 1)The moon moves round the earth. 2)Mr. Smith travels to work by bus every day. (2)在由after，until，before，once，when，even if，in case，as long as，as soon as，the moment以及if，unless等引导的时间状语从句或条件状语从句中，通常用一般现在时代替将来时。例如： 1)I will tell him the news as soon as I see him. 2)I will not go to countryside if it rains tomorrow. (3)某些表示起始的动词，可用一般现在时表示按规定、计划或安排要发生的动作，这类动词有：be，go，come，start，depart，arrive，begin，leave等。例如： 1)The plane leaves at three sharp. 2)The new teachers arrive tomorrow. (4)在由why，what，where，whoever，who，that，as等引导的从句中，也常用一般现在时代替将来时。例如： 1)Free tickets will be given to whoever comes first. 2)Youll probably be in the same train as I am tomorrow. 2.一般过去时 (1)表示过去某一特定时间所发生的、可完成的动作或状态，常与表示确切过去时间的词、短语或从句连用。例如： We went to the pictures last night and saw a very interesting film. (2)表示过去习惯性动作。例如： 1)He always went to class last. 2)I used to do my homework in the library. (注意与be used to doing短语的区别) 3.一般将来时 1)表示将来打算进行或期待发生的动作或状态。例如： I shall graduate next year. 2)几种替代形式： 1)be going to +v在口语中广泛使用，表示准备做或将发生的事情。例如： Im going to buy a house when weve saved enough money. 2)be to +v表示计划安排要做的事，具有“必要”的强制性意义。例如： I am to play tennis this afternoon. 3)be about to +v表示即将发生的事情。例如： He was about to start. 4)be due to +v表示预先确定了的事，必定发生的事。例如： The train is due to depart in ten minutes. 5)be on the point/verge of +v ing强调即将发生的某种事态。例如： The baby was on the point of crying when her mother finally came home. 二、进行时态 1.现在进行时 (1)表示现在正在进行的动作，常与now，right now，at the moment，for the time being，at present等连用。例如： Dont disturb her. She is reading a newspaper now. (2)表示现阶段经常发生的动作，常与always，continually，forever，constantly等连用。例如： My father is forever criticizing me. (3)表示根据计划或安排在最近要进行的事情。具有这种语法功能的动词仅限于过渡性动词。即表示从一个状态或位置转移到另一个状态或位置上去的动词。常用的有：go，come，leave，start，arrive，return等。例如： They are leaving for Hong Kong next month. (4)有些动词不能用进行时，这是一类表示“感觉，感情，存在，从属”等的动词。如：see，hear，smell，taste，feel，notice，look，appear，(表示感觉的词)；hate，love，fear，like，want，wish，prefer，refuse，forgive(表示感情的动词)；be，exist，remain，stay，obtain(表示存在状态的动词)；have，possess，own，contain，belong，consist of，form(表示占有与从属的动词)；understand，know，believe，think，doubt，forget，remember(表示思考理解的动词)。但是如果它们词义改变，便也可用进行时态。例如： 1)Tom looks pale. Whats wrong with him? (look在此为联系动词，意为“显得，看上去”) 2)Tom is looking for his books. (look在此为实义动词，意为“寻找”) 2.过去进行时 过去进行时表示一个过去的动作发生时或发生后，另一个过去的动作正在进行，或表示过去反复的习惯，常与always，continually，constantly等动词连用。例如： 1)We were discussing the matter when the headmaster entered. 2)Whenever I visited him, he was always writing at the desk. 3.将来进行时 将来进行时主要表示将来某一时刻正在进行的动作，或表示要在将来某一时刻开始，并继续下去的动作。常用来表示礼貌的询问、请求等。例如： 1)This time next day they will be sitting in the cinema. 2)What will you be doing at six tomorrow evening? 4.完成进行时 (现在、过去、将来)完成进行时是(现在、过去、将来)完成时的强调形式，将放在完成时态部分讲述。 三、完成时态 完成时态通常表示已完成或从事的动作。它可分为： 1.现在完成时 (1)现在完成时用来表示对目前状况仍有影响的，刚刚完成的动作(常与yet，already，just连用)，或者过去某一时刻发生的，持续到现在的情况(常与for，since连用)。例如： 1)I have just finished my homework. 2)Mary has been ill for three days. (2)常与现在完成时连用的时间状语有：since, for, during, over等引导出的短语；副词already, yet, just, ever, now, before, often, lately, recently等；状语词组this week (morning, month, year), so far, up to now, many times, up to the present等。例如： 1)I havent been there for five years. 2)So far, she hasnt enjoyed the summer vacation. 3)There have been a lot of changes since 1978. (3)完成时态可用在下列结构中： This (That, It) is (was) the first (second) time +定语从句；This (That, It) is (was) the only (last) + n +定语从句；This (That, It) is (was) +形容词最高级+ n +定语从句。如果主句的谓语动词是一般现在时，从句的谓语动词通常用现在完成时；如果主句谓语动词是一般过去时，从句谓语动词通常用过去完成时。例如： (1)This is one of the rarest questions that have ever been raised at such a meeting. (2)There was a knock at the door. It was the second time someone had interrupted me that evening. 2.过去完成时 (1)表示过去某时间前已经发生的动作或情况，这个过去的时间可以用by，before等介词短语或一个时间状语从句来表示；或者表示一个动作在另一个过去动作之前已经完成。例如： 1)We had just had our breakfast when Tom came in. 2)By the end of last year they had turned out 5, 000 bicycles. (2)动词expect, hope, mean, intend, plan, suppose, wish, want, desire等用过去完成时，表示过去的希望、预期、意图或愿望等没有实现。例如： I had meant to take a good holiday this year, but I wasnt able to get away. 另外两种表示“过去想做而未做的事”的表达方式是： 1)was / were + to have done sth,例如： We were to have come yesterday, but we couldnt. 2)intended (expected, hope, meant, planned, supposed, wished, wanted, desired) + to have done sth,例如： I meant to have told you about it, but I forgot to do so. (3)过去完成时常用于以下固定句型： 1)hardly, scarcely, barely + 过去完成时+ when + 过去时。例如： Hardly had I got on the bus when it started to move. 2)no sooner +过去完成时+ than +过去时。例如： No sooner had I gone out than he came to see me. 3)by (the end of ) +过去时间，主句中谓语动词用过去完成时。例如： The experiment had been finished by 4 oclock yesterday afternoon. 3.将来完成时 将来完成时表示在将来某一时刻将完成或在另一个未来的动作发生之前已经完成的动作；也可以用来表示一种猜测。常与将来完成时连用的时间状语有：by (the time / the end of ) +表示将来时间的短语和句子；before (the end of ) +表示将来时间的词语或句子；when, after等加上表示将来动作的句子等。例如： 1)By this time tomorrow you will have arrived in Shanghai. 2)I shall have finished this composition before 9 oclock. 3)When we get on the railway station, the train will probably have left. 4.完成进行时 完成进行时是完成时的强调形式，有现在完成进行时，过去完成进行时，将来完成进行时。 (1)现在完成进行时表示过去某一时刻之前开始的动作或状态一直延续到过去某一时刻。例如： I have been looking for my lost book for three days, but I still havent found it. (2)过去完成进行时表示过去某一时刻之前开始的动作或状态一直延续到过去某一时刻。例如： It had been raining cats and dogs for over a week and the downpour had caused landslides in many places. (3)将来完成进行时表示在将来某一时刻之前开始的一个动作或状态一直延续到将来某一时刻。例如： By the time you arrive tonight, she will have been typing for hours. 四：时态一致 时态一致是英语四、六级考试的一个重要内容。通常应由主句谓语的时态决定从句的谓语时态。一般原则是： 1、当主句谓语使用现在时或将来时，从句的谓语根据具体情况使用任何时态 He says that he lives in Wuhan. We hope that there will be many people at your party today. “Did you hear that Bill finally sold the house?” “Yes, but I dont know who bought it.” “Theres a lot of excitement on the street.” “There certainly is. Do you suppose the astronauts have returned?” 2、当主句谓语使用过去时的时候，从句的谓语必须使用过去范围的时态 He said he was writing a novel. The teacher wanted to know when we would finish the experiment. He said his father had been an engineer. 3、当从句是表示没有时间概念的真理时，从句的谓语应使用一般现在时。例如： The teacher told them since light travels faster than sound, lightning appears to go before thunder. 注：在此种情况下，即使主句谓语用了过去式的各种时态，从句谓语也应用一般现在时。 4、从句谓语只能用虚拟语气的情况 利用时态一致原则确定从句动词时态时，还应注意，若主语动词是表示命令、请求、要求、建议、劝告等的动词，从句谓语只能用虚拟语气，不能遵循时态一致原则。例如： We insisted that we do it ourselves. 动词的语态 语态也是动词的一种形式，英语有两种语态：主动语态和被动语态。主动语态表示主语是动作的执行者，而被动语态表示主语是动作的承受者。 1)We use electricity to run machines. (主动语态) 2)Electricity is used to run machines. (被动语态) 1.不能用于被动语态的动词和短语 (1)在英语中，不及物动词不能用于被动语态，但有些不及物动词(包括短语)容易引起误用。如：appear, belong, belong, die, escape, fall, happen, last, remain, succeed, occur, come true, take place, consist of。 (2)某些表示状态或特征的及物动词，如：become, contain, cost, fit, have, resemble, suit也没有被动语态。 2.被动语态的时态形式 常用的被动语态有表1所列的几种时态形式。 表1 时?SPAN lang=EN-US> 一般时 进行时 完成时 现在 am asked am being asked is asked is being asked are asked are being asked 过去 was be asked was being asked were be asked were being asked 将来 shall be asked shall have been asked will be asked will have been asked 过去 should be asked should have been asked 将来 would be asked would have been asked 3.短语动词的被动语态 短语动词转换为被动语态时，通常被看作是一个动词，后面的介词或副词不能拆开或省略。例如： 1)So far no correct conclusion has arrived at. 2)All the rubbish should be got rid of. 4.“get + -ed分词”的被动语态 “get + -ed分词”结构强调动作的结果，而非动作本身，常用来表示突发性的，出乎意料的偶然事件。例如： The boy got hurt on his way home from work. 另外，“get + -ed分词”还可用于谈论为自己做的事，是主动的行为而不是被动的行为。例如： get dressed(穿衣服) get divorced(离婚) get engaged(订婚) get confused(迷惑不解) get lost(迷路) get washed(洗脸) get married(结婚) 5.能带两个宾语和复合宾语的动词改为被动语态 (1)能带两个宾语的动词改为被动语态时，一次只能由一个宾语作主语，另一个宾语被保留下来。例如： 1)We showed the visitors our new products.(主动语态) 2)The visitors were shown our new products.(被动语态) 3)Our new products were shown to the visitors.(被动语态) (2)能带复合宾语的动词改为被动语态时，原来的宾语补足语变为主语补足语。例如： 1)The teacher appointed him League secretary.(主动语态) 2)He was appointed League secretary.(被动语态) 6.被动语态与系表结构的区别 (1)The novel was well written.(系表结构) (2)The novel was written by Diskens.(被动语态) 7.少数动词的主动语态有时有被动的意思 例1：The book is selling remarkably well. 例2：The song sounds very beautiful. 能这样用的动词还有read(读起来)，clean(擦起来)，wash(洗起来)，write(写起来)。 例3：My watch needs cleaning. (= My watch needs to be cleaned). 能像need这样用的动词还有：want, require, deserve, do, owe, bind等。 例4：The meat is cooking. 例5：The book written by the professor is printing初中英语全部时态222.249.58.*1楼一 般 现 在 时 A:一般现在时通常表示目前阶段经常发生的动作或存在的状态。 结构: 1）be动词的第一人称单数为，第三人称单数为，其他人称为。 有一顺口溜体现了它的用法： 我用am ，你用 are ，is 用于他，她，它, 单数is，复数are. 肯定式:主语+ am /is/are +其他 否定式:主语+ am/is/are +not + 其他 疑问式:Am /Is /Are + 主语+ 其他? 简略回答: (肯) Yes,主语 + am/ is /are (否) No,主语 + am /is/are not 缩写形式: I'm = I am That's =That is We're =We are What's= What is You're = You are Who's = Who is They're =They are Where's =Where is He's =He is She's =She is It's = It is isn't=is not aren't=are not 2）行为动词（实义动词）除主语是第三人称单数外，都用动词原形，主语是第三人称单数时，在动词 词尾加-s或-es 。 “动词第三人称单数”的加法 即 “如何从动词原形变为第三人称单数” 1、一般情况加s. 2、以o, s, x, ch, sh 结尾加es. 3、以“辅音字母+y”结尾 改y为i +es 写出下列动词的第三人称单数： study play go come help teach lie listen begin open sit throw wash guess cut run relax beat eat 肯定式:主语+动词原形/动词的第三人称单数 否定式:主语+助动词 don't/doesn't +动词原形+其他 疑问式:Do/Does+主语+动词原形+其他 简略回答:(肯)Yes,主语+do/does (否)No,主语+do/does not 缩写形式: don't = do not doesn't =does not 注意：have的第三人称单数为has 用法： 1.表示事实,现状,性质或经常的,习惯的动作,常与often, usually, always, sometimes, today,every day,once a week, every five minutes, on Sundays等时间状语连用, eg. He has a brother. 2.表示普遍真理. eg. The earth goes round the sun. 3.表示在现在时间里所发生的一个动作 . eg. Here comes the train. 4.在时间和条件状语从句中代表一般将来时 . eg.I'll go with you if you are free tomorrow. 一般过去时 一般过去时枣表示过去发生的动作或存在的状态，一般过去时通常由动词的过去式表示。 结构： 1.动词的第一、三有称单数用,其他人称用,其肯定式,否定式,疑问式和简略回答形式与一般现在时相似。 2.行为动词的过去式分为规则和不规则两种, 规则动词的过去式是在动词后加或,不规则动词参照不规则动词表,需要专门记忆。 肯定式:主语+动词的过去式 + 其他 eg. I got up at six this morning. 否定式:主语 + did not + 动词原形 + 其他 eg. John didn't live here last year. 疑问式:Did + 主语 + 动词原形 + 其他 eg. Did you see him a moment ago? 简略回答.(肯)Yes, 主语 +did (否)No , 主语 + didn't. 用法 ：1.主要用于过去某个时间发生的动作或状态. eg. My father was at work yesterday. 2.表示过去经常或反复发生的动作,常与often,always 等表示频度的时间状语连用. eg. He always went to work by bus last summer. 3.和when等连词引导的状语从句连用. eg. When she reached home, she had a short rest. 4.常与表示过去的时间
