英语语法专项:九种状语从句及练习
语法专题:状语从句(含练习和答案)
状语从句一、状语从句的定义状语从句(Adverbial Clause)是指句子用作状语时,起副词作用的句子。
状语从句可以修饰谓语、非谓语动词、定语、状语或整个句子。
状语从句根据其作用可分为:时间、地点、原因、条件、目的、结果、让步、方式和比较等从句。
状语从句一般由连词(从属连词)引导,也可以由词组引起。
从句位于句首或句中时通常用逗号与主句隔开,位于句尾时可以不用逗号隔开。
二、状语从句常用引导词1. 时间状语从句as /while /whe n /un til /once /since / before; whe never, he first/last time,every/each time等。
2. 地点状语从句3. 原因状语从句4. 条件状语从句5. 目的状语从句6. 结果状语从句7. 方式状语从句where/wherever 等。
because/as/si nce/fo 等。
if/unl ess/as long as 等。
so that/i n order that/i n case等。
so...that/such...that/so tha等。
as/as if(though)等。
than/as …as/the more …the 等ore9. 让步状语从句although/no matter+.../eve n if/ whatever/ as尽管)等。
三、状语从句分析1. 时间状语从句(1) 时间状语从句常用when, as, while, before, after, since, till, until, as soon as 等连词来引导。
例如:It was raining hard ( rain hard 下大雨) when got to school yesterday.While he was doing his homework, the teleph one rang.As he walked along (沿着走)the lake, he sang happily.(2) 在时间状语从句里,通常不用将来时态,用现在时态表示将来的动作或状态。
状语及状语从句(语法加练习完整讲解)
结果状语从句
The problem is so difficult that it will take us time to work it out. 这道题如此难以至于我们要用很多时间才能解决。
She is such a kind girl that everyone likes her. 她非常善良,以至于每个人都喜欢她。
not that...but that...(不是因为...而是因为)
条件状语从句
If you want to succeed, you'd better work hard. 如果你想成功,最好努力工作。 I'll come unless it rains. 除非下雨,否则我一定来。 You can borrow the book as long as you promise to keep i Ming studied so hard that he caught up with the others very quickly. 李明学习如此努力,结果很快赶上了其他人。
6.程度状语: I nearly forgot what he had promised. 我几乎忘记了他答应的事。
(2)如果动词前有一个或几个助动词,状语位于第一个 助动词之后。 He has already had his lunch.他已吃过午饭了。
(3)如果动词是be,状语就放在be动词之后。 He is always at home. 他总是在家。
3.状语位于句末,这是状语的通常位置。
We get up at six in the morning. 我们早晨六点起床。
三、状语的分类:
状语按用途可分为:地点、时间、原因、目的、 结果、条件、让步、程度、方式、伴随情况等几类。
状语从句知识点详解(初中英语专项复习)14
状语从句知识点详解(初中英语专项复习)状语从句的概念: 用一个句子作状语来修饰动词和形容词,以表明动作发生或状态存在的时间、地点、原因等,这个句子就叫做状语从句。
状语从句的分类:状语从句共分为九大类,包括:时间、地点、原因、条件、让步、目的、结果、方式、比较状语从句。
下面分别讲解:一、时间状语从句概念:用来表示时间的状语从句,由when, while, as, till, until,before, after, since等引导。
由于时间状语从句的引导词所表示的意思并非一致,不同引导词表达不同的时间,它们在句子中对应的时态、语态等也有所不同。
例如:when /while引导的时间状语从句when引导的从句的谓语动词通常是瞬间动词,也可以是延续性动词。
从句动作可与主语动作通常先后发生也可同时发生。
I was writing when my sister came back.( come是瞬间动词,只能用when引导,不能用while)He often wrote me when/while he studied in Shanghai International Studies University.( study 是延续性动词,while可代替when)While my mother was cooking , I was playing chess with dad. (cook是延续性的动词,cook和play同时发生)I like playing chess while my sister likes reading stories.我喜欢下棋,而我姐姐喜欢看小说。
(while表示对比)when和while的区别还有:while引导的时间状语从句多用于进行时态,而when引导的时间状语从句多用于一般时态。
While we were playing games, our headmaster called me .我们正在做游戏的时候,校长叫我了。
状语从句讲解及练习
状语从句讲解及练习初中英语状语从句讲解及专项练习状语从句指由句⼦来作状语。
它可以修饰谓语、⾮谓语动词、定语、状语或整个句⼦。
根据其作⽤可分为时间、地点、原因、条件、⽬的、结果、让步、⽅式和⽐较等从句。
状语从句⼀般由“主句+连词+从句”或者“连词+从句,主句”。
⼀、时间状语从句:由when,before,after,as soon as,since,until,not…until引导。
1. Mozart started writing music when he was four years old.当莫扎特4岁的时候,就开始写⾳乐作品。
2. He went home after he finished his homework yesterday.他昨天做完作业之后就回家了。
3. Mr. brown had worked in a bank for a year before he came here.布朗先⽣来这之前在⼀家银⾏⾥⼯作了⼀年。
4. we began to work as soon as we got there.我们⼀到那就开始⼯作。
Mr green has taught in that school since he came to china three years ago.⾃从格林先⽣三年前来到中国就⼀直在这所学校教书。
5. They walked until it was dark.他们⼀直⾛到天⿊。
6. Xia o ming didn’t leave home until his father came back.⼩明直到他爸爸回来才离开家。
⼆、条件状语从句:由连词if, unless (=if not) 引导。
1.I f it doesn’t rain tomorrow, we will go fishing.如果明天不下⾬, 我们就去钓鱼.2.You will get good grades if you study hard.如果你努⼒学习,就会取得好成绩.3.I will go to the party unless he goes there too.我不会去参加聚会的, 除⾮他也去.(如果他不去,我也不去.)4.You will be late unless you leave at once.如果你不马上⾛,你将会迟到的.(=I f you don’t leave at once, you will be late.)(主将从现):在条件状语从句中, 当主句是将来时的时候,从句要⽤⼀般现在时.三、原因状语从句:由连词because(因为), since, as(既然,由于)引导1.I didn’t go to school yesterday because i was ill.我昨天没去上学,因为我⽣病了。
高中英语状语从句专项讲解及练习(有答案)
高中英语状语从句专项讲解及练习(有答案)状语从句1、地点状语从句地点状语从句表示地点、方位,这类从句通常由where, wherever, anywhere, everywhere引导。
Where there is a will, there is a way.有志者,事竟成。
They will go where they are happy.他们想到他们觉得快乐的地方去。
We must camp where we can get water. 我们必须在能找到水的地方露营。
地点状语从句与定语从句的区别:在于分句在句中作什么成分。
作状语,则是状语从句;作定语修饰名词,则是定语从句。
where引导定语从句时,从句前应有一个表示地点的名词作先行词;而状语从句前则无需先行词。
如:Go back where you came from.(where引导地点状语从句)Go back to the village where you came from.(where引导定语从句,修饰village)We went home, where we had dinner. (where引导定语从句,修饰home)2、原因状语从句原因状语从句一般由because(因为),since(既然),now that(既然,因为),as(由于)等连词引导。
(1)because表示直接的原因,表示原因的语气最强,常表示必然的因果关系。
回答why引起的特殊疑问句,只能用because。
Jane wore a raincoat because it was raining.因为天下雨,所以詹穿着雨衣。
He is absent today because he is ill.他今天缺课,因为他病了。
(2)since表示对方已经知晓、无须加以说明的原因或事实,语气比because稍弱。
I'll do it for you since you are busy.既然你忙,我来替你做吧。
高中英语语法专项—— 状语从句(九大状语从句详讲+配套练习)
语法专项2——状语从句【状语从句综述】由从句担任的状语,在句子中可修饰谓语(或其它动词)、形容词、副词或是整个句子,它可以用来表示时间、地点、原因、目的、结果、条件、方式、比较、让步等。
一、时间状语从句1.表示时间的状语从句可由when, as, while, whenever, after, before, till (until), since, once, as soon as (或the moment ), by the time, no sooner … than, hardly (scarcely) … when, every time等引导。
例如:When I came into the office, the teachers were having a meeting.当我进入办公室时,老师们正在开会。
He started as soon as he received the news. 他已得到这个消息,就出发了。
Once you see him, you will never forget him.一旦你见了他,你就不会忘记他。
No sooner had I gone to bed than I went to sleep.我一上床就睡着了。
2.when, while, as的区别这三个词都可以用作连接词,表示时间关系,但有所区别。
(1)when表示时间关系时,意思常常是“当(在)……的时候”。
主句和从句中的动作或事情可以同时发生,也可以先后发生。
例如:When we were at school, we went to the library every day.我们在求学的时候,每天都到图书馆去。
(2)while 用作连接词表示时间关系时,意思也是“当(在)……的时候”,主句中的动作或事情在从句中的动作或事情的进展过程中发生。
它有时可与when通用,但它只能指一段时间(a period of time),而不能指一点时间的(a point of time)。
高中英语状语从句用法解析(含练习和答案)
高中英语状语从句用法解析英语语法状语从句类型综述状语从句主要用来修饰主句或主句的谓语。
一般可分为九大类,分别表示时间、地点、原因、目的、结果、条件、让步、比较和方式。
尽管种类较多,但由于状语从句与汉语结构和用法相似,所以理解和掌握它并不难。
状语从句的关键是要掌握引导不同状语从句的常用连接词和特殊的连接词即考点。
现分别列举如下:1.时间状语从句常用引导词:when, as, while, as soon as, while, before, after, since , till, until特殊引导词:the minute, the moment, the second, every time, the day,the instant, immediately , directly, no sooner … than, hardly …when, scarcely … whenI didn’t realize how special my mother was until I became an adult.While John was watching TV, his wife was cooking.The children ran away from the orchard(果园) the moment they saw the guard.No sooner had I arrived home than it began to rain.Every time I listen to your advice, I get into trouble.2.地点状语从句常用引导词:where特殊引导词:wherever, anywhere, everywhereGenerally, air will be heavily polluted where there are factories.Wherever you go, you should work hard.3.原因状语从句常用引导词:because, since, as, since特殊引导词:seeing that, now that, in that, considering that, given that, considering that, inasmuch as, insomuch asMy friends dislike me because I’m handsome and successful.Now that everybody has come, let’s begin our conference.The higher income tax is harmful in that it may discourage people from trying to earn more.Considering that he is no more than 12 years old, his height of 1.80 m is quite remarkable.4.目的状语从句常用引导词:so that, in order that特殊引导词:lest, in case, for fear that,in the hope that, for the purpose that, to the end thatThe boss asked the secretary to hurry up with the letters so that he could sign them.The teacher raised his voice on purpose that the students in the back could hear more clearly.5.结果状语从句常用引导词:so … that, so… that, such … that,特殊引导词:such that, to the degree that, to the extent that, to such a degree that,He got up so early that he caught the first bus.It’s such a good chance that we must not miss it.To such an degree was he excited that he couldn’t sleep last night.6.条件状语从句常用引导词:if, unless,特殊引导词:as/so long as, only if, providing/provided that, suppose that, in case that, on condition thatWe’ll start our project if the president agrees.You will certainly succeed so long as you keep on trying.Provided that there is no opposition, we shall hold the meeting here.7.让步状语从句常用引导词:though, although, even if, even though特殊引导词:as(用在让步状语从句中必须要倒装),while ( 一般用在句首),no matter …,in spite of the fact that, while, whatever, whoever, wherever, whenever, however, whicheverMu ch as I respect him, I can’t agree to his proposal.尽管我很尊敬他,我却不同意他的建议。
【语法专项训练】状语从句翻译专项练习及答案
一、时间状语从句1、当我进屋时,他正在写信。
2、我们什么时间有空,我们就去那里。
3、我正在街上走着,这时忽然有人从后面拍我的肩膀。
4、天下雨的时候,他们出去了。
5、他不在的时候我在。
6、他赶快回家,不时地一边走一边向后看。
7、先做学生,再做先生。
8、比赛开始后,他到了。
9、我们一直等到他回来。
10、她到11点钟才停止工作。
11、她站在那里看着,直到看不见他的身影。
12、自从1978年以来中国发生了巨大的变化。
13、我一到上海就给你写信。
14、我刚一到家,就下雨了。
15、我们刚到车站,火车就走了。
16、我们刚开始就被叫停。
17、我每次乘船都晕船。
18、我一听到这首歌,就感到很愉快。
19、下次你来的时候,就会见到他。
二、地点状语从句1、有志者,事竟成。
2、哪里有水,哪里就有生命。
3、你可以随意到你喜欢的任何地方去。
4、无论你去哪都要遵守法律。
三、原因状语从句1、昨天我回来晚了,因为我值班。
2、既然大家都到了,我们开始开会。
3、由于他英语懂得不多,他在字典中查阅这个单词。
4、鉴于天气已经晴朗,我们可以启程了。
5、鉴于他病情严重,我们派人去请医生去了。
四、目的状语从句1、我要把你的电话号码记下来,以免忘记。
2、我把真实情况告诉你,使你能自己作出判断。
3、他们比往常更加努力工作,为了能提前完成工作。
4、多穿点衣服,以免患感冒。
五、结果状语从句1、我们把收音机的音量放大,大家都听到了新闻。
2、他十分激动,以致一句话都说不出来。
3、他说出了这么重要的理由,得到大家的谅解。
4、这是一本十分有意思的书,大家都想看。
六、条件状语从句1、如果我们不怕困难,困难就算不了什么了。
2、除非下雨,我们明天就去那里。
3、只要你努力工作,你就一定能成功。
4、万一我忘了,请提醒我一下。
5、据我所知,那本书下月出版。
七、方式状语从句1、按照我教你的画一只猫。
2、按照人家告诉你做的去做。
3、看上去她好象是生病了。
4、他的行动就好象什么也没有发生。
(完整版)高考英语专题复习状语从句(附答案)
高考英语专题复习状语从句(附答案)I. 考点分析状语从句可用来表示时间、地点、原因、目的、结果、条件、方式、比较和让步等。
1.时间状语从句1) 常见关联词有when, whenever, while, as, before, after 等。
2)注意not…until… 正常结构、倒装结构、强调结构、和until置于句首的用法。
He didn’t go to sleep until he had finished his homework. (正常结构)Not until he had finished his homework did he go to sleep. (倒装结构)It was not until he had finished his homework that he went to sleep.(强调结构)Until he had finished his homework he didn’t go to sleep. (until置于句首)3)表示“一……就……”的连词:once, as soon as, hardly/scarcely…when, no sooner…than, the minute, the moment, the instant, immediately, directly, instantly4)其他表示时间的短语还有:every time, next time, the day 等。
2.地点状语从句通常由where, wherever引导如:Where there is a will, there is a way.3.原因状语从句1) 通常由because, as ,since引导, 三者区别:because 语气最强,重在交待原因,以why引导的疑问句只能because用来回答;其前可用only, just等词强调;可用在It is…that…强调句型中。
状语从句讲解及习题附答案
状语从句讲解及习题附答案(一)状语从句概述定义状语从句用作状语,是起副词作用的句子。
位置状语从句可以放在主句之前,也可以放在主句之后,时间、条件、原因和让步状语从句放在句首时需要用逗号和主句隔开。
分类根据其作用可以分为时间、地点、原因、条件、目的、让步、方式和比较等状语从句。
作用它可以修饰谓语、非谓语动词、定语、状语和整个句子。
(二)状语从句详解1. 时间状语从句引导词用法示例when 意为“当…的时候”。
When引导从句的谓语动词可以是延续性动词,也可以是瞬间动词。
并且when有时表示“就在那时”A liar is not believed when he speaks the truth.说谎者讲真话时也没有人相信。
When he arrives, I’ll call you. When you laugh and smile, your body relaxes.while 意为“在…的时候,在…的同时”。
While引导从句的谓语动词必须是延续性的,发生时间较长,并强调主句和从句的动作同时发生(或者相对应)。
While有时还可以表示对比。
While I was standing at the window, I saw several boys running along the street.While John was watching TV, his wife was cooking.as 意为“一边…一边…”。
As引导的动作是延续性的,发生时间较短,一般用于主句和从句动作同时发生;as也可以强调一前一后。
The writer was angry as he was travelling on a train to London because someone had invaded his “space”.He smiled as he stood up.after 意为“在…之后”。
状语从句九大类型及例句
状语从句九大类型及例句一、时间状语从句1、从句中常用引导词:When, after, before, as, as soon as, till, until, while 等。
2、例句:When we got home, dinner was ready.二、条件状语从句1、从句中常用引导词:If, unless, provided, on condition that, as/so long as等。
2、例句:I will go out with you if you promise to be back by 10.三、地点状语从句1、从句中常用引导词:Where, wherever等。
2、例句:Where there's a will, there's a way.四、原因状语从句1、从句中常用引导词:Because, since, as, now that, now that等。
2、例句:He can't work since he is ill.五、结果状语从句1、从句中常用引导词:So that, so..that, such...that, that等。
2、例句:They worked so hard that they succeeded in the end.六、让步状语从句1、从句中常用引导词:Though, although, even though, whatever, whichever等。
2、例句:Though it rained heavily, the sports meeting went on.七、比较状语从句1、从句中常用引导词:Than, as, as...as, not so...as等。
2、例句:You ought to work harder than you do now.八、方式状语从句1、从句中常用引导词:As, as if, as though, like等。
英语宾语从句定语从句状语从句讲解与练习
He started as soon as he received the news.
Once you see him, you will never forget him.
l在许多带有复合宾语的句子中,that引导的宾语从句经常移到句子的后面,而用it做形式宾语。
例:We think it wrong that he told a lie to everyone (我认为他向每一个人撒谎是错误的)
B,由连词if、whether引导的表示是否的宾语从句。Whether,if在从句中不做句子的成分,一般情况下,whether和if可以替换。
He asked me whether I was a teacher.
They wanted to know what they can do for us.
三,宾语从句的时态。
宾语从句的时态受主句的限制,即:主句是一般现在时态,从句根据实际情况而定。主句是一般过去时态,从句用相应的过去的时态。如果从句的动作发生在主句之前,则从句要用过去完成时态。例:
例:I don’t know what I should do next.
I con’t know what to do next.
He didn’t know where he would live.
He didn’tknow where
定语从句
在主从复合句中充当定语的句子是定语从句,它在句中修饰名词或代词。定语从句一般由关系代词that, which, who(m), whose和关系副词when, where, why等引导。被定语从句修饰的词叫做先行词。定语从句通常放在先行词的后面作后置定语。在中考试题中,主要考查引导定语从句的关系代词和关系副词。
完整版)状语从句(9种全)
完整版)状语从句(9种全)状语从句在复合句中起到修饰主句的作用,分为时间、地点、原因、目的、结果、条件、方式、比较、让步等种类。
1.时间状语从句时间状语从句的连接词包括when。
as。
while。
after。
before。
since。
ever since。
as soon as。
once。
till。
until。
whenever。
no sooner…than。
hardly/scarcely。
when。
the moment/minute/instant/second。
every time。
each time。
any time。
the first time。
next time。
last time。
all the time。
by the time。
directly。
immediately。
instantly等。
例如,“一···就···”的句型可以用as soon as或once引导,其中as soon as侧重时间或动作先后衔接紧,而once侧重条件,表示“一旦。
”;on doing sth/on one's + n.作时间状语,例如On arriving at the n。
the thief was arrested.意为“一到达车站,这个小偷就被逮捕了。
”2.地点状语从句地点状语从句的连接词包括where。
wherever。
anywhere。
everywhere等。
例如,I'll go wherever you go.意为“你去哪儿,我就跟你去哪儿。
”3.原因状语从句原因状语从句的连接词包括because。
since。
as。
now that。
seeing that。
considering that等。
例如,Since it's raining。
we'll stay indoors.意为“因为下雨,我们将待在室内。
初中英语状语从句详细讲解与练习(精华版)
对比训练 1
1. __A__ he heard this, he got very angry.
2. I met Lucy__B__ I was walking along the river.
3. __C__ a child, he lived in the countryside. A. when B. while C. as
4. 表示“随着…..”.常指一个行为是另一个行为的结果。 As she grew older, she became more beautiful.
while:持续性动词 /进行时
1.一般或现在情况
e.g. I like listening to music while I am doing my homework 2.将来. 情况-V一般现在时或现在进行时 e.g.— I’m going to the post office.
won in the end.
A. After B. before C. when D. then
since引导的时间状语从句
1.常译为“自从……”, 2.主句常用现在完成时,从句常用一般过去时。
1.我们自从分手以后一直没见过面。 We haven’t seen each other since we parted. 常用句型:It has been (is) + 时间段 + since从句
-- While you are there, can you get some stamps for me?
3.过去情况
e.g. I hurt my should while I was doing gym.
When: 1.当…的时候 When I was young, I went to town myself. When he receives the letter, he’ll tell us.
高中英语语法:状语从句总结及练习
高中英语语法状语从句总结及练习由从句担任的状语,在句子中可修饰谓语(或其它动词、形容词、副词或是整个句子,它可以用来表示时间、地点、原因、目的、结果、条件、方式、比较、让步等。
状语从句是一较大的语法项目,也是近几年高考题中常见的一个重要试点。
高考中已考查了时间、让步、地点、条件、目的等状语从句,这些从句仍是今后高考热点,应作充分准备。
同时对方式状语从句也应引起重视。
(一时间状语从句表示时间的状语从句可由when,as,while,whenever,after,before,till(until,since,once,as soon as(或the moment,by the time,no sooner…than,hardly(scarcely…when,every time等引导。
e.g.When I came into the office,the teachers were having a meeting.He started as soon as he received the news.Once you see him,you will never forget him.No sooner had I gone to bed than I went to sleep.(二原因状语从句原因状语从句是表示原因或理由的,引导这类从句的最常用的连词是because,since,as,now that(既然等,for表示因果关系时(它引导的不是从句为并列连词,语气不如because强。
e.g.He is disappointed because he didn't get the position.As it is raining,I will not go out.Now that you mention it,I do remember.(三地点状语从句引导地点状语从句的连词是where和wherever等。
英语语法精讲:状语从句--条件,方式,地点,原因等详细+经典习题(含答案)
状语从句副词性从句(状语从句)(一)时间状语从句:用一般现在时表将来1.When(当……时)引导●从句用一般现在时/现在完成时:when + S.+ do/have done……例:I will let you know when you come.●When it comes to +名词/动名词,表示“当涉及(谈)到…..”例:Doing your homework is a sure way to improve your test scores, and this is especially true when it comes to classroom tests.●若从句用一般过去时,主句用过去进行时/be about to(打算)结构,说明主句用来表示从句发生的背景,when就表示为“正在这时”例:I felt somewhat disappointed and was about to leave, when something occurred which attracted my attention.2.While(当……时)引导●从句用一般现在时/现在完成时:while + S.+ do/have done……3.As(正当……时,一边…..一边)引导4.Whenever(无论何时)引导5.Since(自从……以来)引导●主句过去完成时+ 从句一般过去时:S. + did…since S.+ had done●常见用法:It is + time + since……,表示“自从……以来有(一段)时间”例:It is two years since I last met her.6.Every/each time(每当)引导7.Before(在……之前、趁着……还没有、还没来得及)引导●若从句需要用情态动词的,只能用can/could例:Please tell me the truth before I can guess it.●常见用法:It is/was/will be + time +before……,表示“过一段时间(才)会……”例:“It is a long time since I saw you last.”“Yes. And it will be a time before we see each other again.”8.After(在……之后)引导9.Till/until(直到)引导●一般结构:not…(短暂v)...until……,表示“直到……才….”倒装结构:Not until…….,后面倒装强调结构:It is not until……that……例:They did not stop discussing until they came to a conclusion.= It was not until they came to a conclusion that they stopped discussion.= Not until they came to a conclusion, did they stop discussion.10.As soon as(刚……就)引导例:Come here as soon as you finished the work.11.The moment/minute/instant(刚……就)引导例:I recognized her the moment I saw her.12.Hardly/scarcely/(only)just……when(刚……就)引导●从句一般过去时+ 主句过去完成时:S. + had hardly/scarcely/(only)just done…,when S.+ did●若hardly/scarcely/(only)just置于句首,主句须倒装(had+ S.+ done)例:He had hardly left school when it began to rain.=Hardly had he left school when it began to rain.13.No sooner……than(刚……就)引导●从句一般过去时+ 主句过去完成时:S. + had no sooner done…, than S.+ did●若no sooner置于句首,主句须倒装(had+ S.+ done)例:We had no sooner reached the top of hill than we all sat down to rest.=No sooner had we reached the top of hill than we all sat down to rest.(二)地点状语从句1.Where(在……地方)引导:从句用一般现在时例:Where there is smoke, there is fire.2.Wherever(无论在哪里)引导例:Wherever he may be, he will be welcome.(三)条件状语从句:用一般现在时表将来1.If(如果、假如)引导:用虚拟语气●if引导得从句中,若有were, had, should三词,可以省略if,并且倒装(谓语置前)例:If I had known about it, I would have told you.= Had I known about it, I would have told you.●If从句+主句= 祈使句/省略句+ and +…….例:If you give me some food, I won’t die of starvation(饥饿).= Some food and I won’t die of starvation;2.Suppose/supposing(假设)引导例:Suppose we cannot get the necessary equipment(设备), what shall we do? 3.Unless(除非、如果不)引导●Unless从句+主句= 祈使句/省略句+ or +…….例:Unless you give me another drink, I will die of thirst.= Another drink or I will die of thirst.4.As/so long as(只要)引导例:We can surely overcome these difficulties so long as we are closely united.5.If only/only if(只要)引导例:We can surely get gains, if only we work hard.6.In case/lest(万一)例:You should take good care of your kid, in case they are ill.7.Provided/Providing/Given that(假如)引导例:We will let you use the room provided that you keep it clean and tidy.8.On condition that(假如)引导(四)原因状语从句1.Because(因为)引导●表示“直接、唯一的原因”,通常放在句后,可以与not, but, only连用例:He was angry not because we were late but because we made a noise.2.As(因为)引导●表示“显而易见或大家都知道的原因”,语气较弱例:Everyone likes you as you are both kind and honest.3.Since(因为、既然)引导●表示“间接或附带的原因”,通常放在句首例:Since she insists, you must come.4.Now/seeing that(既然)引导例:Now/Seeing that you are all here, let’s try and reach a decision.5.Considering that (考虑到)引导例:Considering that he began learning English only a year ago, he speaks very well. 6.In that(由于、因为)引导例:He was late in that he didn’t catch the first bus.(五)让步状语从句1.Though/although/as(虽然)引导●Though/although…..yet连用,表示“虽然…..但是……”例:Though/although we cannot see air, (yet) it exists everyone.●as引导得从句置于句首,且倒装(表语、状语、动词置于as前)表语倒装:可以省略冠词例:Tried as I was, I stayed up late studying last night.Children as he is, he knows a lot of English.状语倒装:Fast as he read, you can’t finish novel in three days.谓语动词倒装:Try as he would, he couldn’t lift the rock.2.Even if/though(即使)引导例:Nobody lost his patience as though the meeting was long and boring. 3.However/no matter how(无论如何/怎样)引导例:We’ll continue to work, no matter how/however hot it is.4.Whatever/no matter what(无论什么)引导例:Whatever/no matter what r you may do, do your best.5.Whoever/no matter who(无论谁)引导例:Whoever/no matter who all cannot break the rules, we must keep the law. 6.Whether……or/no matter whether…..or….(不管……还是)引导例:Whether/no matter whether you can do or cannot do, you must try it. 7.Whether or not/whether……or not(不管是否……)引导例:Whether or not we had a baby, we couldn’t survive only on my salary.= Whether we had a baby or not, we couldn’t survive only my salary.(六)方式状语从句1.As(如,按照)引导例:When in Roma do as the Romans do.2.Just as(正如)引导例:Most plants need air just as they need water.3.As if/though(好像,仿佛)引导●引导的从句常用虚拟语气,除了叙述的情况实现的可能性较大例:He speaks English as if/though he were an Englishman.例:It looks as if/though the coming autumn harvest will be even better than the last one. (七)目的状语从句1.So that(以便、为了)引导●从句中谓语部分可以用can/could,may/might例:I will give you my phone number, so that you can call me when you arrive here. 2.In order to(以便、为了)引导●从句中谓语部分只能用may/might例:We should do our utmost最大可能in order that we may be able to overfulfil 超额完成the task.3.For fear that/lest(以免、以防)引导●从句用虚拟语气“should +V.”例:Batteries 电池must be kept in dry place for fear that/lest electricity should leak 渗漏away.4.In case(以免、以防)引导●从句中谓语部分不用虚拟语气例:Better take more clothes in case the weather is cold.(八)结果状语从1.that(因而)引导例:What’s the matter that they still haven’t answered our e-mail?2.so that(因而)引导●主句,+ so that,且从句中谓语部分只能用may/might例:The temperature is increased , so that the volume of the gas can become greater. 3.So…..that(如此……以至)引导●so +形容词/副词+a/an+名词+ that例:It is so hot a day that we cannot sleep.●so置于句首时,需倒装状语例:So fast did he run that I could not keep up with him●so + much/little/few/many + that,而不用such…..that例:She has so little education that she is unable to get a job.4.Such…..that(如此……以至)引导●Such +名词(可数的单数名词)+ that例:It is such a lovely day that everybody is feeling happy and gay.(九)比较状语从句1.Than(比……)引导例:There are more vocabularies in this unit than in that one.2.As……as(如……一样)引导●As +形容词/副词+a/an+名词+ as + 省略句例:He is as clever a boy as his brother.例:This book is nearly as thick as that one(is).3.Not so……as(不如……一样)引导●As +形容词/副词+a/an+名词+ as + 省略句例:You are not as tall as she.4.The+比较级,the+比较级(越……越…….)引导例:The hotter that air becomes, the lighter it gets.例题1、()______ your daughter has not come back , let me take you to the Friendship Hospital.A WhenB SinceC ThatD For2、()______ Tom is not feeling well today , he has to stay at home.A ThoughB ForC FindingD As3、()They are ______ hard-working students that they have already made ______ much progress since thay came here.A so ; soB such ; suchC so ; suchD such ; so4、()______ we have finished the book we shall start doing some exercises.A For nowB Since nowC Now thatD Since now5、()He asked us not to be noisy ______ we should wake the baby.A in cseB in the caseC in case ofD in this case巩固练习1、()______ you are familiar with the auther`s ideas , by reading all the sections as quickly as you can.A Ever sinceB As long asC So thatD Now that2、()The boy has to learn ______ things that he hardly has time for play.A so manyB such manyC so fewD such few3、()In the old days the poor worker worked long hours every day ______ he could support his whole family.A becauseB thoughC unlessD so that4、()Tell him that I will call him back , ______ he gives me a call.A in most casesB in caseC in any caseD in case of5、()______ you have reminded me , I will try to be a teacher.A Now thenB So thatC Now thatD In order that6、()You will have to study for many years ______ you may become a brain surgeon.A in order thatB in thatC althoughD soKey 1~5 BDDCA 1~6 DADBCA二、习题1、()It is almost impossible to become skilful in speaking a language ______ you use it constantly.A but forB if onlyC exceptD unless2、()Everything will be all right ______ Tom is left to do the work in his own way.A as far asB mean whileC so long asD in case3、()Do remind me of the date again tomorrow ______ I forget.A in caseB except thatC even ifD as though4、()You must do the experiment ______ the teacher told you.A asB sinceC so thatD unless5、()I could not resist having another piece of cake even ______ I was supposed to lose weight.A althoughB howeverC otherwiseD though6、()______ I suggest , he always disagree.A WhatB HowC WhateverD How a7、()However ______ you hate them , you must work with them.A very muchB too muchC much tooD much8、()Try ______ he might , Tom could not get out of the trouble.A as ifB altoughC ifD as9、()______ whales are very large , they are no longer an even match for man.A SinceB BecauseC Now thatD Although10、()Man must have food just ______ plants must have sunlight.A forB likeC becauseD as巩固练习1、()______ I know , the visitors are all satisfied with the arrangement in the next few days.A As far asB As long asC As well asD As soon as2、()______ convincing an argument is , it needs support of evidence.A No matterB ThoughC HoweverD As3、()Anyone can borrow books from the library ______ he has a library card.A so long asB sinceC even thoughD unless4、()______ much advice I gave him , he did exactly what he wanted to do.A HowB WhateverC WhatD No matter how5、()Remember , science requires your whole life ______ you had two lives to give , they would not be enough.A AlthoughB ThoughC If onlyD Even if6、()I am sure that Laura`s latest play , ______ staged , will prove a great success.A sinceB unlessC onceD until7、()Send us a message , ______ you have any difficulty.A in case thatB in caseC whileD as8、()Electricity flows through a wire ______ water flows through a pipe.A whileB just asC much asD whenever9、()Food shortage will long be a world problem ______ much has been done to supply enough for everyone.A althoughB evenC no matterD since10、()I do not like the city , ______ though I have been living here for more than ten years.A evenB asC everD butkey1~5 DCAAD 6~10 CDDDD 1~5 ACADD 6~10 CBBAA。
英语语法精讲:状语从句--条件,方式,地点,原因等详细+经典习题(含答案)
状语从句副词性从句(状语从句)(一)时间状语从句:用一般现在时表将来1.When(当……时)引导●从句用一般现在时/现在完成时:when + S.+ do/have done……例:I will let you know when you come.●When it comes to +名词/动名词,表示“当涉及(谈)到…..”例:Doing your homework is a sure way to improve your test scores, and this is especially true when it comes to classroom tests.●若从句用一般过去时,主句用过去进行时/be about to(打算)结构,说明主句用来表示从句发生的背景,when就表示为“正在这时”例:I felt somewhat disappointed and was about to leave, when something occurred which attracted my attention.2.While(当……时)引导●从句用一般现在时/现在完成时:while + S.+ do/have done……3.As(正当……时,一边…..一边)引导4.Whenever(无论何时)引导5.Since(自从……以来)引导●主句过去完成时+ 从句一般过去时:S. + did…since S.+ had done●常见用法:It is + time + since……,表示“自从……以来有(一段)时间”例:It is two years since I last met her.6.Every/each time(每当)引导7.Before(在……之前、趁着……还没有、还没来得及)引导●若从句需要用情态动词的,只能用can/could例:Please tell me the truth before I can guess it.●常见用法:It is/was/will be + time +before……,表示“过一段时间(才)会……”例:“It is a long time since I saw you last.”“Yes. And it will be a time before we see each other again.”8.After(在……之后)引导9.Till/until(直到)引导●一般结构:not…(短暂v)...until……,表示“直到……才….”倒装结构:Not until…….,后面倒装强调结构:It is not until……that……例:They did not stop discussing until they came to a conclusion.= It was not until they came to a conclusion that they stopped discussion.= Not until they came to a conclusion, did they stop discussion.10.As soon as(刚……就)引导例:Come here as soon as you finished the work.11.The moment/minute/instant(刚……就)引导例:I recognized her the moment I saw her.12.Hardly/scarcely/(only)just……when(刚……就)引导●从句一般过去时+ 主句过去完成时:S. + had hardly/scarcely/(only)just done…,when S.+ did●若hardly/scarcely/(only)just置于句首,主句须倒装(had+ S.+ done)例:He had hardly left school when it began to rain.=Hardly had he left school when it began to rain.13.No sooner……than(刚……就)引导●从句一般过去时+ 主句过去完成时:S. + had no sooner done…, than S.+ did●若no sooner置于句首,主句须倒装(had+ S.+ done)例:We had no sooner reached the top of hill than we all sat down to rest.=No sooner had we reached the top of hill than we all sat down to rest.(二)地点状语从句1.Where(在……地方)引导:从句用一般现在时例:Where there is smoke, there is fire.2.Wherever(无论在哪里)引导例:Wherever he may be, he will be welcome.(三)条件状语从句:用一般现在时表将来1.If(如果、假如)引导:用虚拟语气●if引导得从句中,若有were, had, should三词,可以省略if,并且倒装(谓语置前)例:If I had known about it, I would have told you.= Had I known about it, I would have told you.●If从句+主句= 祈使句/省略句+ and +…….例:If you give me some food, I won’t die of starvation(饥饿).= Some food and I won’t die of starvation;2.Suppose/supposing(假设)引导例:Suppose we cannot get the necessary equipment(设备), what shall we do? 3.Unless(除非、如果不)引导●Unless从句+主句= 祈使句/省略句+ or +…….例:Unless you give me another drink, I will die of thirst.= Another drink or I will die of thirst.4.As/so long as(只要)引导例:We can surely overcome these difficulties so long as we are closely united.5.If only/only if(只要)引导例:We can surely get gains, if only we work hard.6.In case/lest(万一)例:You should take good care of your kid, in case they are ill.7.Provided/Providing/Given that(假如)引导例:We will let you use the room provided that you keep it clean and tidy.8.On condition that(假如)引导(四)原因状语从句1.Because(因为)引导●表示“直接、唯一的原因”,通常放在句后,可以与not, but, only连用例:He was angry not because we were late but because we made a noise.2.As(因为)引导●表示“显而易见或大家都知道的原因”,语气较弱例:Everyone likes you as you are both kind and honest.3.Since(因为、既然)引导●表示“间接或附带的原因”,通常放在句首例:Since she insists, you must come.4.Now/seeing that(既然)引导例:Now/Seeing that you are all here, let’s try and reach a decision.5.Considering that (考虑到)引导例:Considering that he began learning English only a year ago, he speaks very well. 6.In that(由于、因为)引导例:He was late in that he didn’t catch the first bus.(五)让步状语从句1.Though/although/as(虽然)引导●Though/although…..yet连用,表示“虽然…..但是……”例:Though/although we cannot see air, (yet) it exists everyone.●as引导得从句置于句首,且倒装(表语、状语、动词置于as前)表语倒装:可以省略冠词例:Tried as I was, I stayed up late studying last night.Children as he is, he knows a lot of English.状语倒装:Fast as he read, you can’t finish novel in three days.谓语动词倒装:Try as he would, he couldn’t lift the rock.2.Even if/though(即使)引导例:Nobody lost his patience as though the meeting was long and boring. 3.However/no matter how(无论如何/怎样)引导例:We’ll continue to work, no matter how/however hot it is.4.Whatever/no matter what(无论什么)引导例:Whatever/no matter what r you may do, do your best.5.Whoever/no matter who(无论谁)引导例:Whoever/no matter who all cannot break the rules, we must keep the law. 6.Whether……or/no matter whether…..or….(不管……还是)引导例:Whether/no matter whether you can do or cannot do, you must try it. 7.Whether or not/whether……or not(不管是否……)引导例:Whether or not we had a baby, we couldn’t survive only on my salary.= Whether we had a baby or not, we couldn’t survive only my salary.(六)方式状语从句1.As(如,按照)引导例:When in Roma do as the Romans do.2.Just as(正如)引导例:Most plants need air just as they need water.3.As if/though(好像,仿佛)引导●引导的从句常用虚拟语气,除了叙述的情况实现的可能性较大例:He speaks English as if/though he were an Englishman.例:It looks as if/though the coming autumn harvest will be even better than the last one. (七)目的状语从句1.So that(以便、为了)引导●从句中谓语部分可以用can/could,may/might例:I will give you my phone number, so that you can call me when you arrive here. 2.In order to(以便、为了)引导●从句中谓语部分只能用may/might例:We should do our utmost最大可能in order that we may be able to overfulfil 超额完成the task.3.For fear that/lest(以免、以防)引导●从句用虚拟语气“should +V.”例:Batteries 电池must be kept in dry place for fear that/lest electricity should leak 渗漏away.4.In case(以免、以防)引导●从句中谓语部分不用虚拟语气例:Better take more clothes in case the weather is cold.(八)结果状语从1.that(因而)引导例:What’s the matter that they still haven’t answered our e-mail?2.so that(因而)引导●主句,+ so that,且从句中谓语部分只能用may/might例:The temperature is increased , so that the volume of the gas can become greater. 3.So…..that(如此……以至)引导●so +形容词/副词+a/an+名词+ that例:It is so hot a day that we cannot sleep.●so置于句首时,需倒装状语例:So fast did he run that I could not keep up with him●so + much/little/few/many + that,而不用such…..that例:She has so little education that she is unable to get a job.4.Such…..that(如此……以至)引导●Such +名词(可数的单数名词)+ that例:It is such a lovely day that everybody is feeling happy and gay.(九)比较状语从句1.Than(比……)引导例:There are more vocabularies in this unit than in that one.2.As……as(如……一样)引导●As +形容词/副词+a/an+名词+ as + 省略句例:He is as clever a boy as his brother.例:This book is nearly as thick as that one(is).3.Not so……as(不如……一样)引导●As +形容词/副词+a/an+名词+ as + 省略句例:You are not as tall as she.4.The+比较级,the+比较级(越……越…….)引导例:The hotter that air becomes, the lighter it gets.例题1、()______ your daughter has not come back , let me take you to the Friendship Hospital.A WhenB SinceC ThatD For2、()______ Tom is not feeling well today , he has to stay at home.A ThoughB ForC FindingD As3、()They are ______ hard-working students that they have already made ______ much progress since thay came here.A so ; soB such ; suchC so ; suchD such ; so4、()______ we have finished the book we shall start doing some exercises.A For nowB Since nowC Now thatD Since now5、()He asked us not to be noisy ______ we should wake the baby.A in cseB in the caseC in case ofD in this case巩固练习1、()______ you are familiar with the auther`s ideas , by reading all the sections as quickly as you can.A Ever sinceB As long asC So thatD Now that2、()The boy has to learn ______ things that he hardly has time for play.A so manyB such manyC so fewD such few3、()In the old days the poor worker worked long hours every day ______ he could support his whole family.A becauseB thoughC unlessD so that4、()Tell him that I will call him back , ______ he gives me a call.A in most casesB in caseC in any caseD in case of5、()______ you have reminded me , I will try to be a teacher.A Now thenB So thatC Now thatD In order that6、()You will have to study for many years ______ you may become a brain surgeon.A in order thatB in thatC althoughD soKey 1~5 BDDCA 1~6 DADBCA二、习题1、()It is almost impossible to become skilful in speaking a language ______ you use it constantly.A but forB if onlyC exceptD unless2、()Everything will be all right ______ Tom is left to do the work in his own way.A as far asB mean whileC so long asD in case3、()Do remind me of the date again tomorrow ______ I forget.A in caseB except thatC even ifD as though4、()You must do the experiment ______ the teacher told you.A asB sinceC so thatD unless5、()I could not resist having another piece of cake even ______ I was supposed to lose weight.A althoughB howeverC otherwiseD though6、()______ I suggest , he always disagree.A WhatB HowC WhateverD How a7、()However ______ you hate them , you must work with them.A very muchB too muchC much tooD much8、()Try ______ he might , Tom could not get out of the trouble.A as ifB altoughC ifD as9、()______ whales are very large , they are no longer an even match for man.A SinceB BecauseC Now thatD Although10、()Man must have food just ______ plants must have sunlight.A forB likeC becauseD as巩固练习1、()______ I know , the visitors are all satisfied with the arrangement in the next few days.A As far asB As long asC As well asD As soon as2、()______ convincing an argument is , it needs support of evidence.A No matterB ThoughC HoweverD As3、()Anyone can borrow books from the library ______ he has a library card.A so long asB sinceC even thoughD unless4、()______ much advice I gave him , he did exactly what he wanted to do.A HowB WhateverC WhatD No matter how5、()Remember , science requires your whole life ______ you had two lives to give , they would not be enough.A AlthoughB ThoughC If onlyD Even if6、()I am sure that Laura`s latest play , ______ staged , will prove a great success.A sinceB unlessC onceD until7、()Send us a message , ______ you have any difficulty.A in case thatB in caseC whileD as8、()Electricity flows through a wire ______ water flows through a pipe.A whileB just asC much asD whenever9、()Food shortage will long be a world problem ______ much has been done to supply enough for everyone.A althoughB evenC no matterD since10、()I do not like the city , ______ though I have been living here for more than ten years.A evenB asC everD butkey1~5 DCAAD 6~10 CDDDD 1~5 ACADD 6~10 CBBAA。
高中英语语法_九大状语从句讲解大全(附练习和答案)
【高中语法·状语从句专辑】状语从句和名词性从句、定语从句一样是高考的高频考点。
通过对近年高考题的分析,可以预测2012年对状语从句的考查仍将集中在对引导几大状语从句的连词的考查上。
状语从句是一种作状语用的从句,修饰主句中的动词、形容词、副词或修饰全句,补充说明时间、地点、原因、条件、方式、程度、状态等。
状语从句的关键是要掌握引导不同状语从句的常用连接词和特殊的连接词即考点。
九种状语从句及常见的引导词1、【时间状语从句】:when, while, as, before, after, since(自从…以来), till (until), as soon as(刚一…马上就…), once(一旦), whenever等。
特殊引导词:the minute, the moment, the second, every time, the day,the instant=instantly , immediately , directly, no sooner … than, hardly …when, scarcely … when (1) while 引导的时间从句的谓语必须是延续性动词,常用进行时态。
如果while表示“然而”的时候,就不是时间状语从句;表示“虽然”的时候,是让步状语从句,这是必须放句首且不能倒装。
(2) when 除了表示“当……时”(两个短暂性动作同时发生),还可以表示“就在那时”,在前一个动作刚结束时就发生的新动作。
如I just locked my door when the postman arrived.(3) as 和when一样,表示两个短暂性动作同时发生,还可表示“一边……一边……”“随着…”(4) 党表示“一……就……”的连接词时,可以用到no sooner … than, hardly …when, scarcely … when,但是当hardly, scarcely, no sooner放于句首时,主句必须部分倒装;主句时态用过去完成时,从句用一般过去式。
高考英语语法专题汇总:状语从句(附练习及答案) (很好!!!)
高考英语语法专题汇总:状语从句(附练习及答案)状语从句在句中作状语,可分为:时间、条件、让步、原因、目的、结果、地点、比较、方式状语从句。
1时间状语从句引导时间状语从句的连词有:when, as, while, until, not…until, before, after, since, the minute, the moment, each( every, next, the first) time 等。
时间状语从句中一般用一般现在时或一般过去时。
1.when , while, as都可解释为“当```的时候”但侧重点有所不同。
1) When后既可以接短暂性动词,也可以接延续性动词,表示从句动作与主句动作同时发生。
When I arrived home , I had a little rest.2)As 除了表示“当```的时候”,还可表示为“一面```一面”,“随着”He sang as he danced.(一面```一面) You will grow wiser as you grow older.(随着)3)While表示“当```的时候”强调主句的动作和从句的动作同时发生,从句一般用进行时,从句动词必须是延续性动词。
While we were working, they were having a rest.While (they were) having a discussion, they got very confused.注意:while 有对比的含义,解释为“然而”。
eg: I prefer black tee, while he likes coffee.2.until, not…until表示“直到`才”,在肯定句中主句常用延续性动词;在否定句中常用短暂性动词。
肯定句:I waited until midnight. 否定句:I did not leave until midnight. 注意点:1)not until…在句首,主句用倒装 Not until you had explained how did I manage to do it.2) It is not until…that…引导的强调句 It was not until it was dark that he came back.3.Hardly/scarcely…when, no sooner…than, as soon as表示为“一```就```”I had hardly/scarcely got home when it began to rain.I had no sooner got home than it began to rain. It began to rain as soon as I got home.2条件状语从句条件状语从句分为两大类:真实条件句(主将从现)和虚拟条件句(虚拟语气)。
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状语从句在复合句中作状语的从句叫状语从句。
状语从句有时间、地点、原因、目的、结果、条件、方式、比较、让步等种类。
一、时间状语从句引导时间状语从句的连接词有: when, as, while, after, before, since, ever since, as soon as, once, till, until, whenever, no sooner…than, hardly/scarcely...when, themoment/minute/instant/second, every time, each time, any time, the first time, next time, last time, all the time, by the time, directly, immediately, instantly等。
1.表示“一···就···”的句型1) as soon as/onceAs soon as he arrives, I'll call you.他一到,我就给你打电话。
(as soon as 侧重时间或动作先后衔接紧,而once侧重条件,表示“一旦...”)2) on doing sth/on one's + n.作时间状语On arriving at the station, the thief was arrested.一到达车站,这个小偷就被逮捕了。
On his arrival in Paris, he was recognized as a noble and thrown into prison. 他一到达巴黎,就被认出是一个贵族,并被投入监狱。
3) no sooner ...than , hardly/scarcely...when它们表“一…就”。
结构中的否定词放在句首时,主句要倒装。
(主句都用过去完成时,从句用一般过去时。
)No sooner had he reached home than it began to rain.他刚到家,天就开始下雨了。
Hardly/Scarcely had I entered the room when the phone rang.我一进屋,电话就响了。
当no sooner, hardly, scarcely不放在句首时,主句不倒装,如:I had no sooner reached the bus stop than the bus started.我刚到车站,车就开走了。
I had scarcely(hardly)entered the room when the phone rang.4)the moment, the instant, the minute, the secondThe moment I saw him, I recognized him.我一看见他,就认出了他。
We'll leave the minute you are ready.你一准备好,我们就出发。
5)有些副词如:instantly, immediately, directly可用作连词,后接从句。
I left immediately the clock struck 5.我刚走,钟就敲了五点。
2. when, while, as引导时间状语从句1) when的用法①when既可指时间点,也可指时间段(即:从句动词可以是短暂的也可是延续的);主从句动作可同时也可先后发生。
I was thin when I was a child.当我是个孩子的时候,我很瘦。
It was raining when I arrived.我到达时,天正在下雨。
①在when引导时间状语从句时,如果从句主语与主句主语相同或为it,且从句有be动词,则从句可省主语和be动词,如:When (you are) in trouble, you can visit this man.当你有麻烦时,可以找这个人。
She is always listening to music when(she is) doing her homework. 当她做作业时,总是听音乐。
①when在下列结构中, 译成“这时”,它引导的是并列句be about to do ... when, be doing ... when, had done ···when,be on one's way ... when, be on the point of doing ... when(参见“连词”部分when的用法)2)while用法while只能指一段时间,从句中的动词必须是延续性动词。
强调某一段时间内发生主句动作,相当于during the time that....My mother was cooking while I was doing my homework.当我在做作业时,妈妈在做饭。
I am safe while I am here.我在这儿的时候,我很安全。
while除引导时间状语从句外,还引导对比句,作“然而”讲;并可在句首引出让步状语从句作“虽然···但”讲。
I like watching TV, while he likes reading.我喜欢看电视,而他喜欢读书。
While he has his own car, he often uses mine.尽管他自己有车,他却常用我的。
3) as的用法① as引导时间状语从句时常可和when换用,但较强调同时发生,多指短暂动作。
As I left the house, I forgot the key.我离家时,忘了带钥匙。
① as还可说明两种正在发展或变化的情况,“随着...”的意思,表时间的推移。
如:As I get older, I get more optimistic.随着年龄的增长,我变得更加乐观。
①as表“一边…一边…”,引出伴随动作。
He hurried home, looking behind as he went.他匆忙地回家,边走边往后看。
①用以强调两个动作紧接着发生。
As he was going out, it began to rain.当他出去的时候,天开始下雨了。
①as有时引出一个名词,相当于一个时间状语从句。
As a boy (when he was a boy), he was hopeless at maths.当他是孩子时,他对数学失去希望。
3. before引导的时间状语从句①before引导的时间状语从句不用否定式谓语。
Before they got to the bus stop, the bus had gone.在他们到达公共汽车站之前,公共汽车已经走了。
①在“It be + 时间段+ before从句”句型中,肯定句译成“…(之后)才”,否定句译成“…就”。
该句型有一般过去时、过去将来时、一般将来时三个时态,且有否定句。
It will be some time before... do...It was some time before...did...It would be some time before...did...It was long before...did...“很久才···”It wasn't long before...did...“不久就...”It will be many years before the chemicals start to escape fromthe containers. 多年以后化学物质才开始从容器中逃逸。
It was not long before he came back.不久他就回来了。
It was a long time before he got to sleep again.很久他才再次入睡。
It was a week before he could tell his story.一个星期后他才能讲述他的经历。
It wasn't long before he told us about himself.不久他就给我们讲述了他自己的故事。
▲before可译成“未来得及”He had measured me before I could get a word.我还未来得及插话,他就量好了尺寸。
▲before可译成“趁着还没”I'll write it down before I forget.趁着还没忘我要把它写下来。
4. until和till1)“延续性动词肯定式+until”表示“动作延续到…为止,”译为“直到…为止”,如:I waited for him until he came back. 我一直等到他回来。
2)“终止性动词的否定式+ until”表示“直到···才”。
He didn't go to bed until he had finished his work. 直到完成工作他才睡觉。
3)用于强调句式“It is not until ...that ...”It was not until the professor came that we began the experiment.在教授到来之后,我们才开始实验。
4) not until放在句首时,主句倒装。
Not until he graduated did he succeed in obtaining this compound. 直到他毕业他才成功获得这种化合物。
句首和强调句中要用until,而不用till;not...until...句型中不用till。
5. since引导时间状语从句,意为“自从…时起”,主句要用完成时。
Mr. Li has been here since he came back.自从李先生回来以后,他一直在这儿。
I haven't heard from him since he lived here.自从他住在这儿以来,我就没有收到过他的来信。
I've known Mr. Smith since I was a boy.我小的时候就认识史密斯先生了。
6.时间状语从句的省略式当时间状语从句的主语和主句主语相同或为it,从句又含be动词时,从句可省略主语和be动词。
在不产生歧义时,连词也可省去。