用所给动词的适当形式填空。1. His father stopped ________ (work) because of his illness.2. Mary often helps her moth _______ (do) the housework after school.3-八年级英语
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题文
用所给动词的适当形式填空。 1. His father stopped ________ (work) because of his illness. 2. Mary often helps her moth _______ (do) the housework after school. 3. Project Hope _______ (train) many teachers so far. 4. He _______ (listen) to music when we called him that evening. 5. We _______ (learn) two thousand English words in the last four years. 6. My old grandfather has come here _______ (take) his bag back. 7. There is a group of children _______ (play) football on the playground.
题型:填空题 难度:中档
答案
1. working 2. (to) do 3. has trained 4. was listening 5. have learned 6. to take 7. playing
据专家权威分析,试题“用所给动词的适当形式填空。1. His father stopped ________ (w..”主要考查你对 现在完成时,不定式,分词,动名词,过去进行时 等考点的理解。关于这些考点的“档案”如下:
现在完成时不定式分词动名词过去进行时
考点名称:现在完成时
现在完成时: 过去发生并且已经完成的动作对现在造成影响或后果,过去某一时间开始并一直持续到现在的动作或状态。 基本结构:主语+have/has+动词的过去分词 句式: 1. 否定句式:现在完成时的否定句式是“haven't (hasn't)+过去分词...”。 如:I have not seen the movie yet. 我还没看这部电影。 2. 一般疑问句:Have(Has)+主语+过去分词...? 如: —Have you finished the work?你已经做完这项工作了吗? —Yes, I have. 是的,我已经做完了。(No, I haven't. 不,我还没有做完。) 3. 特殊疑问句:特殊疑问词+have(has)+主语+过去分词...?如: How many times have you been to the Great Wall?你去过长城几次? 提示:肯定句中有some, already时,改为否定句或疑问句时通常要分别改为any, yet。如: I have already finished my homework. 我已经完成了我的作业。 → I haven't finished my homework yet. (否定句) → Have you finished your homework yet? (一般疑问句) 现在完成时常见两种句型: ①for短语 ②It is+一段时间+ since从句
现在完成时特点: 1. 非持续性动词的完成时的肯定式不能与时间段连用,若要用时间段状语,则应换成相应的持续性动词或状态动词。 例如: He has left. He has been away for an hour. 2. have/has been to 表示曾经去过某地,但现在不在那;have/has gone to表示现在已去某地,现在不在这。 例如: He has been to Canada, but now he is working in our company. Mr. Li in not at home. He has gone to Shanghai. 3. 完成时的肯定式常用already,而否定式和疑问式常用yet,但若already用于疑问句时,表示一种出乎意外的惊讶。 例如:Have you read it already?
现在完成时和一般过去时区别: 现在完成时和一般过去时都表示在过去完成的动作。 但现在完成时强调的是这一动作与现在的关系。如对现在产生的结果或影响等, 而一般过去时只表示动作在过去某一时刻发生,不表示和现在的关系。 比较: I have lost my new book. 我把新书丢了。(现在还未找到) I lost my new book yesterday. 我昨天把新书丢了。(昨天丢的,现在找到与否没说明)
have been(to)与have gone( to)的区别: have been(to)表示“去过某地(现在已经回来了)”,可用于各人称; have gone(to)表示“去某地了(说话时某人不在当地)”,常用于第三人称, 前者可与once ,never,several times等连用,后者则不能。 如: They have been to Beijing twice.他们去过北京两次。 He has gone to Beijing . 他去北京了。 现在完成时注意事项: 1.如单纯表示一段时间,或强调一段时间,虽有since一词,也不必用完成时。如: It is two years since his father died. =His father has been dead for two years.他父亲去世已有三年了。
2.终止性动词现在完成时的否定式,已变成一种可以延续的状态,因此可以和表示一段时间的状语连用。如: I haven't left here since 1997.自从1997年以来,我一直没有离开过这儿。
现在完成时的用法: 1.表示动作发生在过去某个不确定的时间,但对现在留下了某种影响和结果。常被just、already、yet 等副词修饰。如: -Have you had lunch yet? -Yes,I have. I've just had it. 2.表示从过去某一时刻开始一直持续到现在的动作或状态。这个动作可能刚停止,可能仍然在进行。 常带有for和since等表示一段时间的状语。如: He has taught here since 1981 他自1981年就在这儿教书。(可能还要继续教) I have't seen her for four years. 我有四年没见到她了。 3.表示说话前发生过一次或多次的动作,现在成为一种经验,一般译为汉语“过”。 常与twice,ever,never,three times等时间状语。 如: I have been to Beijing twice.我去过北京
4. 现在完成时还往往可以同包括现在时间在内的时间状语连用,如: now,up to these few days/weeks/months/years,this morning/week/month/year,just,today,up to present,so far等: Peter has written six papers so far. Man has now learned to release energy from the nucleus of the atom. There has been too much rain in San Francisco this year. The friendly relations and cooperation between our two countries have been enhanced in the past few years. Up to the present everything has been successful.
5.现在完成时往往同表示不确定的过去时间状语连用,如: already(肯定),yet(否定,疑问),just,before,recently,still,lately,never等: He has already obtained a scholarship. I haven't seen much of him recently (lately). We have seen that film before. Have they found the missing child yet?
6.现在完成时的"完成用法" 现在完成时的"完成用法"指的是动作发生在过去某一时刻并已结束,但该动作对现在产生了影响,与现在情况具有因果关系。 例如: He has turned off the light.他已把灯关了。(动作结束于过去,但说明的是现在的情况--灯现在不亮了。) 现在完成时"完成用法"的特点是动作不延续,因此: 该时态只能与表示不定的过去时间状语(如:already,yet,before,recently等)、频度时间状语(如:never,ever,once等)、包括现在时刻在内的时间状语(如:this morning / month /year...,today等)连用。 例如:Have you found your pen yet?你已找到你的钢笔了吗? 7.现在完成时的"未完成用法" 现在完成时的"未完成用法"指的是动作开始于过去某一时刻,一直延续到现在,或可能还要继续下去。 例如: He has lived here since 1978.自从1978年以来,他一直住在这儿。 (动作起始于1978年,一直住到现在,可能还要继续住下去。) I have been in the army for more than 5 years.我在部队已经呆了五年多了。 (动作开始于5年前,一直延续至今,有可能还要继续下去。) 此种用法的句中常需一个表示一段时间的状语(由since或for引导),或表示与现在时刻相连的时间状语(如:up to now,so far)等。 例如: I have heard nothing from him up to now.到目前为止我没有他的任何消息。 注意:现在完成时的未完成用法只适用于延续性动词,不可用于终止性动词,即瞬间完成或延续时间很短的动词。 如:come,go,arrive,leave,join,become,die等。 8.一段时间+has passed+since从句 主语+have / has been+since短语 例如:He has been in the League for three years. 或It is three years since he joined the League. 他入团已三年了 9. 现在完成时常和短语 "up to now /till now","so far" (意思是从过去某一确定的时间一直延续到现在)连用。 Up to/till now he's read many story books. 至今他已读过好多故事书。 I've been to New York three times so far. 至今我已到纽约去过三次。 has gone (to),has been (to),has been (in) 的区别 has gone to:去了没回 has been to :去过 has been in:呆了很久
不定式的用法: 1、不定式作主语 例如:To remember this is very important. 注意:为了避免头重脚轻,在许多情况下,通常都将作主语的不定式置于句子后部,而在句首主语位置使用形式主语it。 例如:It is very important to remember this. 2、不定式作表语 例如:He seems to be ill. 注意:不定式作表语主要有三种情况,一是用于seem, appear, prove等系动词之后的不 定式(尤其是to be), 二是像My job is to sweep the floor. 这样的主语与表语“等价”的情形, 三是表示想法、约定、义务、命令、可能性、命运等,如: You are to come when I call. 3、不定式作宾语 例如:I can not afford to buy a car. 注意: ①不定式不仅用作动词的宾语,还可用作个别介词(but, except)的宾语。 例如:I had no choice but to wait. ②当作宾语的不定式后跟有宾语补足语时,通常要用形式宾语it代替不定式,并将真正的宾语不定式置于宾语补足语之后 例如:I find it difficult to learn Japanese well. 4、不定式作宾语补足语 例如:Who taught you to drive? 5、不定式作定语 例如:I have a question to ask you. 注意:有的名词(如way, chance, right等)后用作不定式可换成of doing sth. 如:It is the best way to do (of doing) it. 但是以下名词后接不定式作定语时通常不能换成of doing sth. attempt courage decision effort fortune failure invitation wish 6、不定式作状语 例如:I went to France to learn French.
过去分词构成形式: 1.规则动词:规则动词的过去分词的构成规则与规则动词的过去式的构成规则相同。四点变化规则: (1)、一般动词,在词尾直接加“ ed ”。(然而要注意的是,过去分词并不是过去式) work---worked---worked , visit---visited---visited (2)、以不发音的“ e ” 结尾的动词,只在词尾加“ d ”。 live---lived---lived (3)、以“辅音字母 + y ”结尾的动词,将 "y" 变为 "i" ,再加“ ed ”。 study---studied---studied,cry---cried---cried,try---tried---tried,fry---fried---fried.[1] (4)、重读闭音节结尾,末尾只有一个辅音字母,先双写该辅音字母,再加“ ed ”。 stop---stopped---stopped , drop---dropped--dropped (5)、以ic结尾的动词,要把ic变成ick再加ed, picnic→picnicked ,traffic→trafficked 2 、不规则动词:见不规则动词表
分词用法: 1、分词作状语 分词在句子中作状语,可以表示时间、条件、原因、结果、让步、伴随等。 分词(短语)作状语时,其逻辑主语应与句中主语相一致。 当现在分词表示的动作发 生在谓语动词之前时, 则用现在分词的完成式,且所表示动作与谓语动作同时发生, 则用现在分词的一般式。 完成或被动关系用过去分词。 ①现在分词: The students went out of the classroom, laughing and talking. ②过去分词: Accompanied by his friend, he went to the railway station. Given better attention, the plants could grow better.
2、“while ( when, once, until, if , though等连词)+分词”结构 现在分词或过去分词作状语时,有时可以在分词前加while,when, once, although, until, if等连词。 ①现在分词: When leaving the airport, she waved again and again to us. While waiting for the train, I had a long talk with my sister about her work…… ②过去分词: Once recovered, he threw himself into his work and made every effort to do it well. Although working very hard, he failed to pass the final exam. If translated word by word, the passage will be difficult to understand.
3、分词作定语 分词作定语时,单个的分词通常放在被修饰的名词之前,分词短语一般置于所修饰的中心词后面。 现在分词修饰的是发出该动作的名词(即与名词有主谓关系),过去分词修饰承受该动作的名词(即与名词是动宾关系)。 We will go on with our experiment as soon as we get the added fund. This is really an exhausting day to all of us! We can see the part of the moon lighted by sunlight. After a night spent in excitement and sleeplessness, I forced myself to take a long walk along the beach the next day. More and more developing countries established strategic partnership with developed countries
4、分词作宾语补足语 现在分词在see, watch, hear, observe, notice, feel, find, glimpse, glance等感官动词和look at, listen to等短语动词以及 have, keep, get, catch, leave, set, start, send等使役动词后面与名词或代词构成复合宾语,作宾语补语的成分。 例:I see him passing my house every day. I caught him stealing things in that shop. I smelt something burning.
5、分词作表语 分词作表语通常看作形容词来用。 过去分词表示主语的感受或状态,主语多为人。现在分词表示主语的性质,而且主语多为物; ①过去分词: We were so bored that we couldn’t help yawning. She felt confused, and even frightened. ②现在分词: He was very amusing. That book was rather boring. 很多动词的现在分词都可以作表语: exciting, interesting, encouraging, disappointing, confusing, touching, puzzling.
动名词的结构和形式: 动名词的否定结构: 动名词的否定结构由not 动名词组成。如: Trying without success is better than not trying at all. 实验没有成功也比不实验好。 He hated himself for not having work hard. 他悔恨自己没有用功。 I’m sorry for not having telephoned you before. 很抱歉,没有早给你打电话。 He felt sorry for not having done the work well. 他为没有把工作做好感到难过。 I fancy it has done you a lot of good not going. 我看不去对你倒好了。 (not going 是动名词一般式的否定形式) There is no denying the fact that he si diligent. (no denying 也是动名词一般式的否定)
动名词复合结构: 通常情况下,动名词的逻辑主语为谓语动词的主语。如果动名词动作的发出者不失谓语动的主语时,则需要有自己的逻辑主语物主代词或名词所有格加动名词就构成了动名词的复合结构,这种结构在句中可以作主语,宾语等。 (1)逻辑主语是有生命的名词作主语时,必须用名词或代词所有格,作宾语时(尤其在口语中),也可用名词普通个或人称代词宾格。如: Do you think my going there will be of any help? 你看我去会有什么帮助吗?(宾语) The student’s knowing English well helps him in learning French. 这位学生通晓英语对他学法语很有帮助。(主语) Do you mind my(me) smoking ? 你介意我抽烟吗?(宾语) They insist on Mary’s (Mary) going with them there. 他们坚持要玛丽跟他们一起去那儿。(介词宾语) (2)逻辑主语是无生命名词是,通常只用名词普通格。如: Do you hear the rain pattering on the roof? 你听见雨点打在屋顶上了吗? Is there any hope of our team winning the match ? 我们对赢得比赛有希望吗? (3) 逻辑主语是指示代词或不定代词this that , somebody , someone , nobody, none, anybody, anyone 时,只用普通格。如: She was woken up by somebody shouting outside. 她被外面喊叫的人吵醒了。
动名词的形式(一般式,完成式和被动式): (1) 动名词的一般式所表示的动作与谓语动词所表示的动作同时发生,或在谓语动词表示的动作之后。如: We are very interested in collecting stamps. 我们对集邮很感兴趣。 His coming will be of great help to us . 他来对我们大有帮助。 但是有些明确表示时间的动词和介词 after, on,upon, 或for之后,常用一般式代替完成式,表示动作发生在谓语动作之前。如: I shall never forget seeing the Great Wall for the first time.我永远不会忘记第一次看到长城的情景。 On hearing that bad news , the mother couldn’t help crying. 一听到这个糟糕的消息,母亲就禁不住哭了起来。 Excuse me for coming late. 我来晚了,请原谅。 Thank you for giving us so much help. 谢谢你给了我们这么多帮助。 (2) 动名词的完成式所表示的动作或状态在谓语动词之前完成或结束。 He regrets not having taken part in the work. 他后悔没有参加这项工作。 We were praised for having finished the work ahead of time. 我们因提前完成了这项工作而受到了表扬。 (3)动名词的被动式:当动名词的逻辑主语是行为承受者时,用被动语态。如: I like being given harder work. 我喜欢接受难点的工作。 She is proud of being admitted into the university. 她为被大学录取而感到自豪。 The meeting was put off without his having been consulted. 会议延期并未和他商量。 He doesn’t mind having been criticized. 他不介意过去受到的批评。
动名词与现在分词的关系: 动名词它在形式上与现在分词相同,都是在动词原形的词末加-ing。在现代语法中,这两种形式同视为"-ing形式"。 这两种形式的另一个相同之处是: 它们都是由动词变化而成的,它们都保留了动词的某些特征,它们都能带自己的宾语、状语,而构成动名词短语或是现在分词短语去担当句子成分。 例如: Speaking in the public,he will surely be very cheerful . (现在分词短语,作状语)他在公众场所讲话时总是兴高采烈的。 She hates speaking in the public. (动名词短语,作宾语)她不喜欢在公众场所讲话。
动名词和现在分词都可以用于系动词之后作表语,区别方法是: ①作表语的动名词与主语指的是同一件事,此时系动词相当于“是”,通常把主语和表语的位置互换,语法和意思不变,例如: My hobby is swimming.可改为Swimming is my hobby.(可将原句中的主语与表语位置互换) ②现在分词作表语主要用以说明主语的性质,不能与主语互换位置,例如: The story is interesting .不可改为:Interesting is the story. 2.动名词和现在分词都可以用作定语来修饰名词,两者的区别在于: 动名词修饰名词时主要表示该名词的用途,而现在分词修饰名词时性质、状态或动作等。试比较: ①a swimming boy和a swimming suit 前者的意思是“一个正在游泳的男孩”,即a boy who is swimming,现在分词swimming 表示被修饰名词boy的动作; 而后者的意思是“游泳衣”,即a suit for swimming,动名词swimming表示suit 的用途。 ②a sleeping child 和 a sleeping car 前者的意思是“一个正在睡觉的孩子”,即a child who is sleeping,现在分词sleeping 表示被修饰名词 child 正处于的状态; 而后者的意思是“卧车(被用来睡觉的车厢)”,即 a car which is used for sleeping,动名词 sleeping 表示car 的用途。
动名词的用法: 一、动名词作主语 1. 直接位于句首做主语。例如: Swimming is a good sport in summer. 2. 用 it 作形式主语,把动名词(真实主语)置于句尾作后置主语。 动名词做主语时,不太常用 it 作先行主语,多见于某些形容词及名词之后。例如: It is no use telling him not to worry. 常见的能用于这种结构的形容词还有:better,wonderful,enjoyable,interesting,foolish,difficult,useless,senseless,worthwhile,等。 注意:important,essential,necessary 等形容词不能用于上述结构。 3. 用于“There be”结构中。例如: There is no saying when he'll come.很难说他何时回来。 4. 用于布告形式的省略结构中。例如: No smoking ( =No smoking is allowed (here) ). (禁止吸烟) No parking. (禁止停车) 5. 动名词的复合结构作主语 当动名词有自己的逻辑主语时,常可以在前面加上一个名词或代词的所有格,构成动名词的复合结构 (这时,名词或代词的所有格做动名词的逻辑主语)。 动名词的复合结构也可以在句中作主语。例如: Their coming to help was a great encouragement to us.
二、动名词作宾语 1.作动词的宾语 某些动词后出现非限定性动词时只能用动名词作宾语,不能用不定式。常见的此类动词有: admit, appreciate, excuse, stand, advise, allow, permit, avoid, consider, enjoy, finish They went on walking and never stopped talking.他们继续走,说个不停。 I found it pleasant walking along the seashore.在海滩上走真是乐事。 Mark often attempts to escape being fined whenever he breaks traffic regulations. 每当马克违反交通规则时,他常常企图逃避罚款的处分。 2.作介词的宾语 We are thinking of making a new plan for the next term. 我们正考虑为下学期制定新的计划。 Shall we have a rest or get down to doing our work? 我们休息呢还是开始干活? 3.作形容词的宾语 The music is well worth listening to more than once. 这种曲子很值得多听几遍。 We are busy preparing for the coming sports meet. 我们正为马上到来的运动会忙着做准备。
三、动名词作表语 动名词作表语时句子主语常是表示无生命的事物的名词或what引导的名词性从句。 表语、动名词与主语通常是对等的关系,表示主语的内容,主语、表语可互换位置。 Your task is cleaning the windows. 你的任务就是擦窗户。 (Cleaning the windows is your task.) What I hate most is being laughed at. 我最痛恨的就是被别人嘲笑。 (Being laughed at is what I hate most.)
四、动名词作定语 动名词作定语往往表示被修饰词的某种用途。如: a walking stick =a stick for walking=a stick which is used for walking a washing machine=a machine for washing=a machine which is used for washing a reading room=a room for reading=a room which is used for reading a measuring tape=a tape for measuring=a tape which is used for measuring sleeping pills=pills for sleeping=pills which is used for sleeping
动名词使用注意事项: 1) 动名词做主语时,谓语动词为单数 2) 在动名词和不定式中,作为介词的宾语是动名词 3) 动名词的否定直接在其前加否定词,通过代词的宾格或所有格形式给出逻辑主语 例:I would appreciate you calling back this afternoon. 4) 有些词后只能接动名词 acknowledge;admit; advise;advocate;allow;appreciate; avoid; celebrate; consider; contemplate; defer; delay; deny; detest; discontinue; dislike; dispute; enjoy; it entails; escape; excuse; explain; fancy; feel like; finish; forgive; can’t help; hinder; imagine; it involves; keep; it means; mention; mind; miss; it necessitates; pardon; postpone; practice; prevent; recall; report; resent; resist; risk; suggest; understand... 5) 另外还有一些接-ing形式的常用说法 it’s no good; it’s no/little/hardly any/ use; it’s not/hardly/scarcely use; it’s worthwhile; spend money/time; there’s no; there’s no point in; there’s nothing worse than; what’s the use/point 6) 有些词后面加不定式和动名词均可 remember,forget,try,stop,go on,continue,stop,regret,cease,mean后面均可用不定式和-ing形式,但意义截然不容。 例:remember to do/doing: ①I remembered to post the letters.(指未来/过去未来将要做的动作) ②I remembered posting/having posted the letters.(我记得做过这个动作) forget与remember的用法类似。 regret的用法: ①I regret to inform you that…(我很遗憾地通知你……) ②I regretted having left the firm after twenty years.(为了“二十年前的离开”而遗憾。) try to(努力)与try +–ing(试验): ①You really must try to overcome your shyness. ②Try practicing five hours a day.
考点名称:过去进行时
过去进行时: 表示在过去某一时刻或某一段时间内进行或发生的动作。其形式为was/were+V-ing。 常与表示过去的时间状语连用,如: last night,last Saturday等; 或者与when,while,as引导的过去时间状语连用。
过去进行时的结构: 1. 过去进行时由“主语+was/were + 现在分词”构成 eg: We were having supper when the phone rang. 我们正在吃晚饭时电话响了。 2. 过去进行时的否定式由“主语+was/were not +现在分词”构成 eg: This time yesterday Jack was not watching TV. He was repairing his bike. 昨天这个时候,杰克不是在看电视,而是在修理自行车。 3. 过去进行时的疑问式由“was/were +主语+ 现在分词”组成 eg: Were you playing basketball at four yesterday afternoon? 你们在干什么昨天下午的时间啊 回答我啊?
过去进行时和一般过去时的区别: 一、二者概念理解 一般过去时叙述旧事,过去进行时描述背景。 A、一般过去时 1.过去状态、动作或事件 He went to Beijing the other day.(带具体时间) 2.过去的习惯 a would ,used to与过去时 would 表间断性不规则的习惯,常带频率时间 used to 表一贯性有规律的习惯 They used to meet and would sometimes exchange one or two words. He smoked a lot two years ago. (过去行为) bWould 用于文中不用于句首,只表过去习惯。 Used to 表今昔对比的含义,叙述习惯动作可与would 换用。 When he was a boy , he would often go there . (叙述过去) She isn't what she used to be. (今昔对比) c 表示状态时一般只用used to Tom used to be fat /There used to stand a tree there. (状态) dwas (were) used to +ving表示“合适于,适应于…..” He used to work at night . (“习惯”表经常) He was used to working at night. (习惯表适应) 3.过去的经历,平行动作,依此事件用一般过去时。 He sat there and listened to the radio.(依此发生) 4.客气委婉的语气,用于情态动词,助动词和want , wonder , hope 等 How did you like the film? / Could you help me?
B. 过去进行时 1.在过去某阶段或某一时刻正在发生 What were you doing at 8:30 last night? (过去某时刻正在发生) 2.性动词用过去进行时表示按计划、打算 During that time he was going with us.(表示打算) 3.lways ,often ,usually 等连用表喜爱,讨厌等感情色彩。 He was always Changing his mind.
二、区别 A. 进行时表某一行为的“片断”一般时表示行为的“整体”和存在的状态。 I was reading the book at that time. (未读完,“读”的片段) I read the book yesterday. (已读完,表整个“读”) B、一般持续时间状语多与进行时连用 It was raining all night.(优先用was raining ,rained 为持续动词,故也可使用) He was writing a letter the whole of afternoon. (短暂动词与持续时间连用,表反复,连续发生,不可用一般过去时) C、while 时间状语从句中用短暂动词时只能用进行时。 例:He broke a chair while he was jumping up and down. D、While 所在主从句动作大致持续相等时主从句一般都用进行时,但若是持续动词可都用一般过去时,两个动作一长一短时短的用一般时,长的用进行时。 I was cooking the dinner while he was playing the piano.(平行) I cooked the dinner while he played the piano. I saw him while I was walking to the station.
过去进行时的基本用法: 过去进行时的基本用法主要表示过去某一时间正在进行的动作。如: He fell asleep when he was reading. 他看书时睡着了。 2. 用过去进行时表示现在主要是为了使语气委婉、客气。如: I was wondering if you could give me a lift. 我不知你能否让我搭一下车。 【注】一般过去时也有类似用法,但比较而言,用过去进行时显得更客气,更不肯定。 3. 过去进行时表示感情色彩与现在进行时相似,过去进行时也可表示满意、称赞、惊讶、 厌恶等感情色彩,也通常与 always, forever, continually等副词连用。如: They were always quarrelling. 他们老是吵架。 4. 动词be的过去进行时动词be的进行时也可表示过去一时的表现或暂时的状态。 比较:He was friendly. 他很友好。(指过去长期如此) He was being friendly. 他当时显得很友好。(指当时一时的表现) 特殊用法 1、当句子意思很清楚时,我们也可以把两个动词都换成一般过去时 We listened carefully when the teacher read the text. 老师读课文时,我们都仔细地听着。 2、表示按计划、安排过去将要发生的事。 用于come,go,leave,start,arrive等表示位置转移的动词时,也可以用过去进行时表示过去将要发生的动作。 如:He told me that he was going soon. 他告诉我他很快就要走了。 3、表示故事发生的背景。 It was snowing as the medical team made its way to the front. 那支医疗小组往前线行进时,天正下着雪。 4、表示一个新的动作刚刚开始。 过去进行时可用来引出一个新的动作,这种用法颇有点儿像镜头转换。 Five minutes later,he stood in the doorway smoking a cigarette. 5分钟后,他已站在门口抽着烟。 5、过去进行时还可和when结构遥相呼应,含有意外之意。 I was walking in the street when someone called me. 我正在街上走时突然有人喊我。 6、用来陈述原因或用作借口。 She went to the doctor yesterday. She was having a lot of trouble with her heart. 她昨天去看病了。她患了很严重的心脏病。 7、与always,constantly等词连用,表示感情色彩。 The girl was always changing her mind. 这女孩老是改变主意。