Often he ________ sit for hours doing nothing at all in front of the computer.A.was used to B.would C.used to D.should
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答案B 【巧解导析】would只用来说明过去的重复动作,不表示情况或状态；used to一般不与时间状语连用．本句表示过去“总是”,但并不表示现在已不再如此． 查看原帖>>
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M2 语法专题
M2 语法复习在英语句子中，不同时间所发生的动作或存在的状态，要使用不同的动词形式，这一点 和汉语不同， 这种谓语动词的变化形式， 称之为时态。 现将本模块我们所学的时态总结如下， 包括：现在完成时，现在完成进行时，过去完成时，将来进行时，过去将来时等。 一、现在完成时 1.动词形式: 现在完成时由助动词 have (has) + 动词过去分词构成,即 have/ha
s done。 2.现在完成时的基本用法 1)表示过去某时所发生的动作或事情对现在的影响。动作已经完成，但从结果看，又着眼 于现在。而常和以下表示不确定时间的状语连用：yet(用于否定句), already(用于肯定句), before, recently, lately, ever, never, just, 等等。现在完成时不能和表示具体的过去时间的 状语 (如 yesterday, last year, in 1999 等)连用，与具体的时间连用，用一般过去时。 e.g. Phillip has lost all his money. (菲利浦失去了他所的钱。) 1. I _______ from my parents recently. (hear from) (最近我没有收到父母的来信。) 2.Joan _______ reading my essay yet. (finish) (琼还没读完我的论文。) 3.______ you _______your supper yet? (have) (你吃过晚饭了吗？ 4. I _______________such a moving film. (我从来没看过这么有趣的电影。) 2)表是重复的动作，通常与 once, twice, many times,等等连用. e.g. Some villagers say that they have seen UFOs many times. 3)表示动作或状态开始于过去某一时间，持续到现在，并且有延续下去的趋势。常和表示 一段时间的状语连用：since, for, for a long time, up till now, up to now, so far, for the past (last) few years, these days (months, years)等。 e.g. Bogart has worked here for about five years. (布加特已在这儿工作五年了。) 5. Up till now, Grace ___________ no news from her parents. (迄今为止，格雷丝尚未收 到父母的消息。(receive) 6. Nancy___________ for four years. (away)(兰西已经离开四年了。) 3)现在完成时常用于下列句型： (1) It is the first time (day …)… that+(现在完成时) (2) It is the best … that…(现在完成时) 7.It is the first time I_________ here. (be) (我是第一次来这儿。) 8. It is the best film I______________. (see) (这是我看过的最好的一部电影。) 9. It was the best film that I _________________. (see) 注： 1)表示“到哪里去过”要用 have (has) been to， 表示“去什么地方了， 尚未回来”用 have(has) gone to。 I have been to Paris several times. (我去过巴黎好几次。) (人已回来了) Mary has gone to New York. (玛丽到纽约去了。) (玛丽人在去纽约的路上或在纽约) 2)瞬间动词用于完成时态时不能跟表示一段时间的状语。例如，我们要表达“他的祖父去 世好几年了。 ”不能说： His grandfather has died for several years.(×)而应该说： His grandfather has bee dead for several years. (√) 或者：His grandfather died several years ago. (√) 或者： It is/ has been several years since his grandfather died. (√) 再如， 我们不能用 He has joined the army for three years.来表达“他参军三年了。 ”而应说： He has been in the army for three years.或者：He has been a soldier for three years.或者：He joined the army three years ago.也可以说 It is/ has been three years since he joined the army. 二、现在完成进行时 1.动词形式 现在完成进行时由 have (has) + been + 现在分词构成,即 have/has been doing。 2.现在完成进行时的基本用法：11)表示动作从过去某时开始一直延续到现在，没有中断。 Grace has been waiting for me for half an hour. (格雷丝已经等我半小时了。) (动作尚在继续) 10.The satellite __________________ back signals as well as photographs ever since. (自那时起 卫星一直不断地向地球发回信号和照片。) (动作尚在继续) 11.Aaron ________________English ever since graduation. (teach) (毕业以后，艾伦一直 在教英语。) (还在教) 2)表示动作从过去到现在一直不断重复、断断续续。 12. I _____________ good-bye to my colleagues these days. (say) (这些天我一直在向我的同 事们告别。) 13. My parents ________________me to work hard since I went to school. (tell) (自从我上学之 后，我的父母亲不停地告诫我要好好学习。) 注：状态动词一般不用于现在完成进行时。若要表示动作的延续性，只能用现在完成时。 I have had this camera for five years.3.现在完成进行时和现在完成时的区别：1)现在完成进行时强调动作的延续性，而现在完成时则强调过去的动作对现在的影响。 I have thought it over. (我已经仔细考虑过这件事了。) I have been thinking it over. (我一直在反复考虑这件事。) 2)现在完成进行时比现在完成时更具感情色彩。 I have been waiting for you for two hours. (我已经等你两小时了。) (有责备的口气) I have waited for you two hours. (我已经等你两个小时了。) (说明一个客观事实) 三、过去完成时 1.动词形式: 过去完成时由 had + 过去分词构成,即 had done 2.过去完成时的用法 1)表示在过去某个时间或动作之前已经发生、完成的动作或存在的状态。(发生在过去的过 去的动作。) e.g. I had worked as a worker for five years before I became a teacher. (在我成为教师之前， 我 已经当了五年的工人。) 14. By the end of last year, I ________________ 5,000 English words. (learn) (到去年年底，我 已学会了 5,000 个英文单词。) 2)动词的过去完成时可以用于表示一个本来打算做而没有做的事，常用的动词有：intend, hope, want, mean, suppose, expect, think 等。(也是包含过去的过去的含义) e.g. I had intended to meet you at the airport, but someone came to see me just when I was about to leave. (我本来要到机场去接你的，可在我出门时有人来看我。) 3)在有 hardly…when, no sooner…than 等副词的句中，也使用过去完成时，表示“刚刚… 就”，“一…就”。 Hardly had I arrived home when it began to rain. (我刚刚到家，天就开始下起雨来了。) No sooner had they left the building than a bomb exploded. (他们刚刚离开那栋建筑，一颗炸 弹就爆炸了。) 4)过去完成时还用于下面句型中 It was the first time that…(过去完成时)。 e.g. It was the first Hollywood film I had ever seen in America. (那是我在美国观看的第一部 好莱坞电影。) 15. It was the first time that I ____________ such a beautiful place. (see) (那是我第一次见到 这么美的地方。)3.过去完成时和一般过去时的区别：过去完成时表示的时间是“过去的过去”，一般都有相比较的动作和相对时间。而一般过 去时表示的时间只是单纯的过去，没有时间的对比。 16. When I got to the airport, the plane ________________________ (take off)(当我赶到机场 时，飞机已经起飞了。) 17. The plane ____________five minutes ago. (飞机在五分钟前起飞了。)218. I went to bed after I _________________reading the interesting novel. (finish) (读完那本有 趣的小说之后，我就上床睡觉了。) 19. He told me that Sony Corporation________________ Columbia Pictures for$5 billion.(buy) (他告诉我索尼公司花了 50 亿美元收购了哥伦比亚影业公司。) 四、将来进行时 1.动词形式: 将来进行时由 shall (will) + be + 现在分词构成,即 shall/ will be doing。 2.将来进行时的用法： 1)表示将来某个时刻正在进行的或持续的动作。 We will be visiting the Great Wall this time tomorrow. (明天这个时候我们将正在游览长城。) I'll be conducting a scientific experiment this June. (今年六月份我将在进行 一项科学试验。 ) 2)表示委婉的命令、询问、请求等。 Will you be going to the movies with me tonight? (你今晚愿意和我去看电影吗？) You'll be coming at six o'clock. (请你在 6 点钟来。3.将来进行时和一般将来时的区别1)一般将来时不仅表示“将来”，还可表示“意志、意愿”等。而将来进行时则只表示单纯的将 来。 I'll try my best to work hard. (我将尽全力努力学习。) (表意愿) I'll be studying English next semester. (下学期我将在学英语。) (表单纯未来) 2)一般将来时的动作发生在将来某个时间，而将来进行时的动作发生在某个具体的时刻。 I'll write a letter to my parents tomorrow. (明天我要给父母写封信。) I'll be writing a letter to my parents this time tomorrow. (明天这时候，我将在给父母写信。) 五、一般将来时 表达方式：will/shall do sth. is/am/are going to do sth.(表主语计划要做某事) is/am/are to do sth. (表客观上计划好或安排好的动作) is/am/are about to do sth. (常与 about 连用，表正要做某事，突然…) is/am/are doing sth. (一般现在进行时表将来) do/does (一般现在时表将来) 六、过去将来时 1.动词形式: 过去将来时由 would (should) + 动词原形构成,即：would(should) do。 2.过去将来时的用法： 1)表示从过去某时看来将要发生的动作或存在状态。 Grace told me that she would marry me the next year. (格雷丝告诉我她明年和我结婚。) I promised that I would be kind to her in the future. (我承诺将来我会对她好。) 2)表示过去的某种习惯性动作，一般只用 would，不用 should。 Whenever she had trouble, she would turn to me for help. (每当她有困难，她总会向我求助。) 3.过去将来时的其它表达方法： 1)Was (were) going to + 动词 2)was (were) to + 动词 3)was (were) about to + 动词 4)was (were) doing 过去进行时表示过去将来时 e.g. Abraham was going to leave when you came. (亚伯拉罕打算在你来时就离开。) Lily said she was to go abroad. (莉莉说她要出国。) Mother told me that she was quitting office. (妈妈告诉我她正准备辞职。) I was about to leave when the telephone rang. (我正要离开，电话铃突然响了)3练习： 1.We _____ leave when they came in . A. are going to B. were to C. are to D. were about to 2. I wonder why Jenny ______ us recently. We should have heard from her by now. A.hasn’t written B.doesn’t write C. won’t write D. hadn’t written 3.---Have you heard from Janet recently? ---- No, but I _______ her over Christmas. A. saw B. will be seeing C. Have seen D. have been seeing 4.Great change _____ in the city, and a lot of factories_______. A. h have been set up B. have been set up C. are set up D. were set up 5. I didn’t know when she ________, but if she ______ I ______ you know. A.would let B. let C. let D. would let 6.The news came as no surprise to me, for I _____ of it earlier. A. hear B. heard C. have heard D. had heard 7. ---- Alice, why didn’t you come yesterday? ---- I ______, but I had an unexpected visitor. A. had B. would C. was going to D. besides 8. By the time he was twelve, Edison _____ to make a living by himself. A. would begin B. has begun C. had begun D. was begun 9. That night they had all their things packed, for they ______ leave the next day. A. were to B. went to C. going to D. should 10. I hoped that my teacher _____ me with my task. A. will have helped B. would help C. helped D. will help 11.Often he _____ sit for hours doing nothing at all when he was in low spirits. A.should B. would C. could D.might 12.-----What were you doing when I phoned you yesterday evening? -----I ____ just finished my homework and ____ to watch TV. A. am going B. was going C. was going D. am going 13.. We were all surprised when he made it clear that he _____ office soon. A. leaves B. would leave C. left D. had left 14. How can you possibly miss the news? It ___________ on TV all day long. A.has been B. had been C. was D. will be 15.---- ________ Dad and Vicky __________ married? A. How long were, being B. How long, have C. How long have, been D. How long did, get 16. ---- How long _________ at the job? ---- Since 1990. A.were you employed B. have you been employed C. had you been employed D. will you been employed 17.When Mark opened the door, he saw a woman standing there. He _____ her before. A. never saw B. had never seen C. never sees D. has never seen 18.How long ___each other before they___ married? A. had they known, got B. have they known, get C. did they know, were going to get D. do they know, are going to get 19.She _____ Robert for a year. A. married B. married with C. has been married D. has been marred to 20.When Jack arrived, he learned Mary ____ for about an hour. A. had gone B. had been away C. had set off D. had left 21.I’ll go with you as soon as I_____ my work. A. will finish B. shall finish C. finish D. finished 22.Do you think Sam will call his old teacher as soon as he________ in town? A. will be arrived B. is arrived C. arrive D. will arrive 23.That dinner was the most expensive meal we_______________. A. would have B. have had C. had never had D. had ever had4
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=Very excited， the party dug a hole two feet deep.hoping to find buried treasure:现在分词短语作状语，表示目的。5、The leade
=Very excited， the party dug a hole two feet deep.hoping to find buried treasure:现在分词短语作状语，表示目的。5、The leader of the party was examining the soil near the entrance to the cave when the machine showed that there was gold under the ground.the entrance to：.....的入口;注意介词to的用法when:在这个时候6、In spite of this， many people are confident that‘The Revealer‘may reveal something of value fairly soon.may:可能fairly：相当，颇 程度副词fairlyquiteratherprettyvery第三部分 KEY STRUCTURES AND USAGE would do sth.would一般表示从过去看将来， 但此处表示 "used to" 过去常做=he pirates would often bury gold in the cave and then fail to collect it. =He would sit for hours doing nothing.比较一下下面段落中would和used to用法上的区别When I was young I used to have a lot more free time than I do now. I used to live near my work and would always get home early. Sometimes I would do a bit of gardening or go for a long walk.当我们提到过去某一特定时间时， 我们有时可用would来代替used to. 但是， 我们不能在下面这个句子中使用would: =This sort of novel used to be very popular.这种小说过去很流行.分词短语=A new machine called‘The Revealer‘ has been invented.=Armed with the new machine， a search party went into the cave hoping to find buried treasure.=Very excited， the party dug a hole two feet deep.
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-- 本站部分信息来源于互联网，不代表本站观点或立场，如有侵权，请来电告知，我们将及时处理Often he ________ sit for hours doing nothing at all in front of the computer.A.was used toB.wouldC.used toD.should
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答案B【巧解导析】would只用来说明过去的重复动作,不表示情况或状态；used to一般不与时间状语连用．本句表示过去“总是”,但并不表示现在已不再如此．
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