时间状语从句讲解和练习(答案)

1 时间状语从句时间状语从句 用句子表达一件事情或一个行为发生的时间 这个句子就叫时间状语从句 时间状语从句根据其所表示的 时间不同 所使用的连词也不同 下面我们一起来看一下几个常见的时间状语从句 1 when 引导的从句 表示主句的动作和从句的动作同时发生 或从句的动作发生在主句动作之前 引导的从句 表示主句的动作和从句的动作同时发生 或从句的动作发生在主句动作之前 例如 I was going out when a visitor came 动词动作同时发生 我正要出门 有客人来访 I shall tell her the good news when she comes 她来时 我将告诉她这个好消息 小试牛刀 小试牛刀 I found mother cooking for me I got home when He was listening to the radio when I home get 2 while 引导的从句 表示引导的从句 表示 当当 过程中过程中 强调某一段时间内主句和从句中谓语动词所表示的动作在同一 强调某一段时间内主句和从句中谓语动词所表示的动作在同一 时期发生 由于时期发生 由于 while 从句表示一个持续的行为 所以从句中要用持续性动词 并且持续性动词常用进行时态 从句表示一个持续的行为 所以从句中要用持续性动词 并且持续性动词常用进行时态 例如 Keep an eye on my little sister while I am away 我不在时 请照看一下我的小妹妹 While we were watching TV Jim came in 我们看电视的时候 Jim 进来了 小试牛刀 小试牛刀 It started to rain We were playing football while Lucy was cleaning the room Lily was listening to music 3 as 引导的时间状语从句 表示引导的时间状语从句 表示 当当 的时候 一边的时候 一边 一边一边 随着 随着 其从句的主语与主句的主 其从句的主语与主句的主 语往往是同一人或物 语往往是同一人或物 例如 She sang as she worked 她一边工作一边唱歌 She was singing as she was working I saw him as he was getting off the bus 正当他下公共汽车时 我看见了他 小试牛刀 小试牛刀 we walked we talked You will grow wiser you grow older 4 before 引导的从句 一般表示主句的动作发生在从句动作之前 引导的从句 一般表示主句的动作发生在从句动作之前 例如 I didn t know any English before I came here 我到这儿来之前 一点英语都不懂 例如 I had written my report before my father came back 小试牛刀 小试牛刀 He bought the ticket he went to see the film 5 after 引导的从句 表示主句的动作发生在从句动作之后 引导的从句 表示主句的动作发生在从句动作之后 例如 After he locked the door he left 他锁上门后 就走了 After he had finished his work he played a game of chess with his friend 他做完工作后 和朋友下了一盘棋 小试牛刀 小试牛刀 I will go out to play basketball with you I finish my homework after He left the classroom he had finished his homework the other day 6 since 引导的从句 表示引导的从句 表示 自从自从 以来以来 从句中的动词一般表示动作的起点 用过去时 主句中的动词 从句中的动词一般表示动作的起点 用过去时 主句中的动词 表示动作延续的情况 一般用现在完成时 如果主句中的动词表示的不是延续的动作而是表示目前的状态 可表示动作延续的情况 一般用现在完成时 如果主句中的动词表示的不是延续的动作而是表示目前的状态 可 用一般现在时 用一般现在时 例如 Since he met this good friend he has made great progress in his studies 自从遇见了这个好朋友 他已在学习上取得了巨大的进步 例如 It is twenty years since she joined the Party 她入党二十年了 主句中的动词表示的是状态 用现在 时 小试牛刀 小试牛刀 it is five years since we last time meet 2 Mr green has taught in that school since he come to China three years ago 7 until 引导的从句 表示一个动作持续到某一时刻 引导的从句 表示一个动作持续到某一时刻 1 表示 直到 如果主句中的谓语动词是延续性动词时 用肯定或否定形式都可以 但表达的意思不 同 2 表示 直到 才 主句用否定式 从句用肯定 如果主句中的谓语动词是瞬间动词时 必须用否定形 式 例如 They worked until it was late 他们一直工作到天黑 She didn t go to bed until she finished her homework 她写完作业才睡觉 小试牛刀 小试牛刀 All the people left He waited until He went to bed his father came home 8 as soon as 引导的从句表示引导的从句表示 一一 就就 强调动作紧密相连 强调动作紧密相连 例如 As soon as she came to the classroom she began to read English 她一到教室 就开始读英语 小试牛刀 小试牛刀 We start to sing It s 12 o clock as soon as 9 by the time 到 到 为止 为止 所在句子的主句应用完成时所在句子的主句应用完成时 例如 By the time he gets there his father has already gone 他到家的时候 他爸爸已经走了 小试牛刀 小试牛刀 By the time I got to school the class begin 我到校时 已经开始上课了 知识扩展知识扩展 1 it is 时间段时间段 since 一般过去时 从 一般过去时 从 以来多长时间了 以来多长时间了 例如 it is five years since we met last time 从我们上次见面已经五年了 2 it is will be 时间段时间段 before 一般现在时一般现在时 it was 时间段时间段 before 一般过去时一般过去时 才 才 例如 it is a long time before I go to sleep 过了很长时间我才睡着 it was an hour before the police arrived 过了一个小时 警察才来 小试牛刀 小试牛刀 It be ten years since we leave that city It is reported that it may be two or three months it is possible to test this medicine on animals How long do you think it will be China sends a manned spaceship to the moon 3 when 和和 while 的区别的区别 连词连词区别区别所接动词所接动词例句例句 when主从句同时发生 先后发生 瞬间性动词 持续性动词 When you arrive in London please give us a call When he was having his lunch he heard the door bell ring as主从句同时发生 一边一边 一边一边 随着 随着 持续性动词As time went on he grew more and more impatient As we walked we talked while主从句同时发生 然而 既然 持续性动词While she was reading a novel her mother was cooking the dinner Some people waste food while other haven t enough I m going to the post office While you re there can you get me some stamps 3 4 巧记 巧记 10 个瞬间性动词个瞬间性动词 在学习以 when 和 while 引导的时间状语从句时 用到了瞬间动词和延续动词 常见的瞬间动词有 die 死 come 来 go 去 eave 离开 arrive 到达 begin 开始 buy 买 join 加入 borrow 借进 借出 return 归还 等 这 10 个瞬间动词可用两句口诀来帮助记忆 开始离去 借来还 出生入死 买到家 注释 1 开始离去 借来还 为 begin leave go borrow come return 六词 2 出生入死 买到家 为 join die buy arrive 四词 3 各词改为相应的延续动词为 begin be on leave be away from borrow keep go be come be here return be back join be in die be dead buy have arrive be here 等 5 状语从句与主句的时态问题状语从句与主句的时态问题 1 由由 when while 引导的时间状语从句的时态 引导的时间状语从句的时态 主过从过 主过从过 主句 过去进行时 when 从句 一般过去 主句 一般过去时 when 从句 过去进行时 主句 一般过去时 while 从句 过去进行时 主句 过去进行时 while 从句 过去进行时 注意 看动词为短暂性动词用一般过去时 动词为延续性动词则用过去进行时 小试牛刀 Mother cook supper when I get home yesterday Last Sunday I meet Lin Hong when I walk in the street When the students have a meeting the teacher come in While Han Meimei sweep the floor Lucy carry water 2 由由 when after before by the time 引导的时间状语从句的时态 引导的时间状语从句的时态 主句 从句的谓语动词都已完成 则先发生的动作用过去完成时 后发生的动作用一般过去时 例如 After he had finished his work he played a game of chess with his friend 小试牛刀 When they get to the cinema last light the film start I go out with my friends after I finish all the homework last night 3 时间状语从句与主句的时态不一致 时间状语从句与主句的时态不一致 主将从现 主将从现 主句用将来时 而时间状语从句用一般现在时 主句用将来时 而时间状语从句用一般现在时 小试牛刀 As soon as I reach Canada I you up ring I will call you as soon as I the result know He become a solider when he grow up He wait until the rain stop 一 单项选择 一 单项选择 1 The meeting didn t start everyone was there A Because B until C why D if 2 The boy to bed his mother came in A went not until B didn t go after C went until D didn t go until 3 He wait until the rain A won t will stop B won t stop C will stops D will will stop 4 As soon as Jane here I ll post the letter to Mike 4 A leave B will leave C leaves D left 5 It was already five o clock we got home A when B while C because D if 6 I m going to the post office you re there can you get me some stamps A As B While C Because D If 7 Joan and Mary haven t seen each other they left school five years ago A as B before C after D since 8 I will let you know about it as soon as I the news A will get B gets C got D get 9 He back until the work done A isn t will be B isn t is C won t be will be D won t be is 10 I call the police for help I saw the thief A while B before C as soon as D after 11 They didn t start the work their teacher came back A until B while C as soon as D if 12 Tom will call me as soon as he Shanghai A arrives B will reach C arrives in D get to 13 I m sure he ll come to see me before he Beijing A will leave B is leaving C leave D leaves 14 I will tell him the news as soon as he back A come B comes C will come D came 15 I won t believe you I have seen it with my own eyes A before B until C after D when 16 He home she was satisfied his answer yesterday A didn t go until with B wasn t go after to C doesn t go before with D didn t go until to 二 用方框中的单词填空 二 用方框中的单词填空 when before after as since while until as soon as 1 Mum was making cookies in the kitchen the telephone rang 2 I was watching TV my wife was cooking 3 He had worked in a factory for two years he went to college 4 I shall play chess with you I finish watching TV 5 He didn t get to the airport it was dark 6 She sang she went along 7 I haven t heard from him he went to America 8 We found the books two days he had gone away 三 完成句子 三 完成句子 1 他进来时 我在吃饭 I was eating 2 我在那封信寄到之前去北京了 I had left for Beijing jus