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8种常用时态的被动语态由“助动词be + 动词的过去分词”构成。
助动词be 有时态、人称和数的变化。
(1) 一般现在时：am/is/are +过去分词。
如：Rice is grown in south China. 华南种植水稻。
(2) 一般过去时：was/were+过去分词。
如：The glass was broken yesterday. 这块玻璃是昨天打烂的。
(3) 现在进行时：am/is/are being +过去分词。
如：The project is being carried out. 这个计划正在执行中。
(4) 过去进行时：was/were/being +过去分词。
如：This road was being built this time last year. 这条路去年这个时候还在修建。
(5) 一般将来时：will be +过去分词。
如：The cars will be sent abroad by sea. 这些汽车将由水路运往国外。
(6) 过去将来时：would be +过去分词。
如：The manager said the project would be completed by the end of the year. 经理说这个工程在年底前将会完成。
(7) 现在完成时：have/has been +过去分词。
如：This novel has been translated into several languages. 这本小说已被译成了几种语言。
(8) 过去完在时：had been +过去分词。
如：When I got to the theatre, I found the tickets had already been sold out. 我到达剧院时，发现票已卖完了。
被动语态的主要用法■当不知道或没有必要指出动作的执行者时，常用被动语态，这时往往不用by短语。
英语中8种时态的主动语态和被动语态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，every year, every week等连用。
例如：1)The moon moves round the earth..(2)在由after，until，before，once，when，even if（即使, 虽然），in case（conj.万一, 如果），as long as（和 ... 一样长），as soon as（conj.一 ... 就），the moment（一 ... 就 ..., 这一刻）以及if，unless（conj.除非, 如果不prep.除 ... 外）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.(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（vt.离开vi.离开, 死亡），arrive（vi.到达, 到来, 成功），begin（v.开始, 着手），leave（v.委托, 离开, 留给, 遗留, 遗赠, 听任n.许可, 准假, 告别vi.生出叶子）等。
例如：1)The plane leaves at three sharp（adv. 正好, (时间)准, 尖锐地）.(4)在由why，what，where，whoever（pron. 无论是谁, 不管谁, 任何人），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.2.一般过去时英语中8种时态的主动语态和被动语态(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。
八种时态主动语态被动语态一般现在时(经常,反复,爱好,特点,条件,真理) do; does am;is;are done一般过去时(过去发生的事,不强调现在的结果) did; -ed was;were done一般将来时(将要发生的事) will do will be done现在进行时(现在正在发生的事) am;is;are doing am;is;are being done过去进行时(当时正在发生的事) was;were doing was;were being done现在完成时(过去发生的事,强调现在的结果) have;has done have;has been done过去完成时(过去完成的事；过去以前发生的事) had done had been done过去将来时(过去将要发生的事) would do would be done八种时态：• He is always ready to help others. 一般现在时• She often came to help us in those days.一般过去式• He is doing his homework now. 现在进行时• At that time she was doing her homework.过去进行时• I've written an article.现在完成时• By the end of last month. We had reviewed four books 。
过去完成时• It is going to rain.一般将来时• I asked who was going there. 过去将来时一般现在时1.概念：经常、反复发生的动作或行为及现在的某种状况。
2.时间状语：always, usually, often, sometimes, every week (day, year, month…), once a week, on Sundays,3.基本结构：动词原形（如主语为第三人称单数，动词上要改为第三人称单数形式）4.否定形式：am/is/are+not;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。
八大时态主动和被动的结构哇塞！说到英语的八大时态，这可真是让我又爱又恨呀！先来说说一般现在时吧。
主动结构就像是“我每天都去上学”，那就是“I go to school every day”。
被动结构呢？比如说“作业每天被老师布置”，就是“Homework is assigned by the teacher every day”。
这是不是还挺好理解的？再瞧瞧一般过去时。
主动的，像“我昨天去了公园”，就是“I went to the park yesterday”。
被动的话，比如“那棵树昨天被砍倒了”，就是“That tree was cut down yesterday”。
一般将来时呢？主动像“我明天要去旅行”，那就是“I will travel tomorrow”。
被动就是“这个房间明天会被打扫”，“This room will be cleaned tomorrow”。
现在进行时，主动“我正在做作业”，“I am doing my homework”。
被动“这幅画正在被画”，“This picture is being drawn”。
过去进行时，主动“我昨天这个时候正在看电视”，“I was watching TV at this time yesterday”。
被动“那个房子昨天这个时候正在被装修”，“That house was being decorated at this time yesterday”。
现在完成时，主动“我已经做完作业了”，“I have finished my homework”。
被动“这个工作已经被完成了”，“This work has been finished”。
过去完成时，主动“我到那儿之前他已经走了”，“He had left before I arrived there”。
被动“那座桥在洪水来之前已经被修好了”，“That bridge had been repaired before the flood came”。
八种时态主动语态被动语态一般现在时(经常,反复,爱好,特点,条件,真理) do; does am;is;are done一般过去时(过去发生的事,不强调现在的结果) did; -ed was;were done一般将来时(将要发生的事) will do will be done现在进行时(现在正在发生的事) am;is;are doing am;is;are being done过去进行时(当时正在发生的事) was;were doing was;were being done现在完成时(过去发生的事,强调现在的结果) have;has done have;has been done过去完成时(过去完成的事；过去以前发生的事) had done had been done过去将来时(过去将要发生的事) would do would be done八种时态：• He is always ready to help others. 一般现在时• She often came to help us in those days.一般过去式• He is doing his homework now. 现在进行时• At that time she was doing her homework.过去进行时• I've written an article.现在完成时• By the end of last month. We had reviewed four books 。
过去完成时• It is going to rain.一般将来时• I asked who was going there. 过去将来时一般现在时1.概念：经常、反复发生的动作或行为及现在的某种状况。
2.时间状语：always, usually, often, sometimes, every week (day, year, month…), once a week, on Sundays,3.基本结构：动词原形（如主语为第三人称单数，动词上要改为第三人称单数形式）4.否定形式：am/is/are+not;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。
英语八种时态及语态一．现在进行时态（正在进行）1．结构：Be + V- ing . 被动语态结构am/is /are + being+ p.p2．关键词；look , listen , now, at the moment , at presente. g The students ----------( play ) at five o’clock in the afternoon.二．一般现在时态（经常性，反复性）1．结构 A. be型am/ is are + n / adj/ prep phrase被动语态结构am/is/are +p.pe. g I am a student . / He is tired . / They are at home.一般疑问句将be 提前，否定句在be 后加not.B．行为动词：1). S+ V （主语除第三人称单数）e. g We study English. / Do you study English ? / We don’t study English. 一般疑问句加助动词do ,否定句加助动词don’t.They do their homework. / Do they do their homework ? / They don’t do their homework.2). S + V（单三）。
主语是第三人称（he, she, your mother, lily）; 动词第三人称变化相当于名词变复数。
E. g His brother studies hard every day. /Does his brother study hard every day ?His brother doesn’t study hard every day.一般疑问句在加Does, 否定句加doesn’t. 后要还原动词原形。
e. g Her sister does some cooking in the evening. / Does her sister do some cooking in theevening .? Her sister doesn’t do some cooking in the evening.3. 关键词：every day ( week / month / year) / in the morning ( afternoon / evening)On Monday (s) at weekend (s)Always /often / usually /sometimes= at times. Once a week （how often）三．一般过去时态（过去的动作，状态）1．结构。
8种常用时态的被动语态由“助动词be + 动词的过去分词”构成。
助动词be 有时态、人称和数的变化。
(1) 一般现在时：am/is/are +过去分词。
如：Rice is grown in south China. 华南种植水稻。
(2) 一般过去时：was/were+过去分词。
如：The glass was broken yesterday. 这块玻璃是昨天打烂的。
(3) 现在进行时：am/is/are being +过去分词。
如：The project is being carried out. 这个计划正在执行中。
(4) 过去进行时：was/were being +过去分词。
如：This road was being built this time last year. 这条路去年这个时候还在修建。
(5) 一般将来时：will be +过去分词。
如：The cars will be sent abroad by sea. 这些汽车将由水路运往国外。
(6) 过去将来时：would be +过去分词。
如：The manager said the project would be completed by the end of the year. 经理说这个工程在年底前将会完成。
(7) 现在完成时：have/has been +过去分词。
如：This novel has been translated into several languages. 这本小说已被译成了几种语言。
(8) 过去完在时：had been +过去分词。
如：When I got to the theatre, I found the tickets had already been sold out. 我到达剧院时，发现票已卖完了。
