(完整word版)高中状语从句语法及例句
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。
状语从句(完整版)
While there is life there is hope. (while = __a_s_l_o_n_g_a_s_ )
状语时用来修饰 动 词, 形容 词, 副 词或 句子 的一种句子成分。它可以表示时间、地点、 原因、目的、结果、条件、让步、比较、方式等。 当充当状语的部分是一个句子时,也就是状语从
句。分类如下:
状语从句
1. 时间状语从句 2. 地点状语从句 3. 原因状语从句 4. 条件状语从句 5. 让步状语从句 6. 目的状语从句 7. 结果状语从句 8. 方式状语从句 9. 比较状语从句
I had no sooner begun to talk than he rang off. No sooner had I begun to talk than he rang off. 我还未来得及讲话,他就挂断了电话。
1. I was so familiar with him that I recognized his voice
考点:名词短语引导时间状语从句
• 1. When every time I was in trouble, he would come to help me.
• 2. At next time you come, do remember bring your son here.
• 3. For the first time I met the girl. I felt in love with her.
c.f. He might be ill, for he didn’t come to
(完整版)状语从句详解+例句
(完整版)状语从句详解+例句状语从句是指在复合句中充当状语的从句。
状语从句可以用来表示时间、原因、条件、目的、程度、方式等各种状况。
下面将详细介绍状语从句的各种类型及其例句。
1. 时间状语从句时间状语从句用来表示主句所描述的行为或状态发生的时间。
常用的连接词有when(当...时候)、while(当...期间)、as(当...时)、before(在...之前)、after(在...之后)、since(自从)等。
例句:- I will call you when I arrive in Beijing.(当我到达北京时,我会给你打电话。
)- He was reading a book while she was cooking.(她在做饭的时候,他在看书。
)2. 原因状语从句原因状语从句用来表示主句所描述的行为或状态的原因。
常用的连接词有because(因为)、since(因为)、as(由于)、for (因为)等。
例句:- I can't go to the party because I have to work.(我不能去参加派对,因为我得工作。
)- Since it is raining, we should stay at home.(由于下雨了,我们应该待在家里。
)3. 条件状语从句条件状语从句用来表示主句所描述的行为或状态的前提条件。
常用的连接词有if(如果)、unless(除非)、whether(无论)、provided(倘若)等。
例句:- If it rains tomorrow, we will stay indoors.(如果明天下雨,我们会呆在室内。
)- We can go shopping unless it is too late.(除非太晚,否则我们可以去购物。
)4. 目的状语从句目的状语从句用来表示主句所描述的行为或状态的目的。
常用的连接词有so that(以便)、in order that(为了)、lest(免得)等。
高中英语状语从句经典例句
高中英语状语从句经典例句状语从句在句中起状语作用,修饰主句中的动词、形容词或副词等。
状语从句位于句首时,常用逗号与主句隔开。
以下是高中英语状语从句的一些经典例句:●时间状语从句:When I got home, my family were already having dinner.(当我到家时,我的家人已经在吃晚饭了。
)While I was walking home, I saw a cat in the tree.(当我步行回家时,我看到一只猫在树上。
)As soon as I finish my homework, I will go to bed.(我一完成作业,就去睡觉。
)●条件状语从句:If it rains tomorrow, we will not go to the park.(如果明天下雨,我们就不去公园。
)Unless you study hard, you will not pass the exam.(除非你努力学习,否则你将无法通过考试。
)As long as you come back before 10 o'clock, you can go out.(只要你在10 点之前回来,你就可以出去。
)●原因状语从句:Since you are tired, you should take a rest.(既然你累了,你应该休息一下。
)Because he was ill, he didn't go to school yesterday.(因为他病了,所以昨天他没有去上学。
)As the weather is so hot, we decide to go swimming.(由于天气太热,我们决定去游泳。
)●目的状语从句:In order that he can pass the exam, he studies very hard.(为了能通过考试,他学习非常努力。
高中英语条件状语从句的句型
高中英语条件状语从句的句型在高中英语的学习中,学生会学习到很多的重要的句型,下面本人的本人将为大家带来条件状语的句型的介绍,希望能够帮助到大家。
高中英语条件状语从句的句型介绍1条件状语从句句型1When / So long as / As long as / Once +从句,+主句。
(从句也可以放在主句之后。
)如:As long as you give me any money, I will let you go.只要你给我一些钱,我就让你走。
Once you have begun to learn English, you should learn it well. 一旦你开始学习英语,你应该把它学好。
句型2主句+on condition that+从句.如:I will go with you on condition that you give me a sum of money.我和你一起去的条件是你给我一些钱。
句型3主句+unless+从句.(注意:由于unless本身是否定词,所引导的从句的谓语动词用肯定而不用否定。
)如:I will go there tomorrow unless it rains.我明天去那儿除非下雨。
点击查看:高中英语语法大全句型4祈使句,+and/ and then+主句。
(注意:祈使句也可用一个名词短语。
)如:Use your head, and you will find a good idea.动脑筋想一想,你就会想出一个好主意。
Another word, and I will beat you.你再说一句,我就揍你。
句型5If +necessary / impossible/ important等,+主句.(注意:if与形容词之间的it is被省略。
)如:If necessary, I will do it. 如果有必要的话,我来做此事。
2原因状语从句句型1主句+in case+从句.(in case表示以免)如:I will take my raincoat in case it rains.我要把雨衣带上以免下雨。
完整版)高中状语从句归纳
完整版)高中状语从句归纳状语从句是在句子中做状语的,包括时间、条件、让步、原因、目的、结果、比较、地点、方式状语从句。
时间状语从句可以由when、as、while、until、not…until、before、after、since、the minute、the moment、each (every。
next。
the first) time等引导。
在时间状语从句中,一般使用一般现在时或一般过去时来表达。
1.时间状语从句引导词当句子中有时间状语从句时,可以用when、as、while、until、not…until、before、after、since、the minute、the moment、each (every。
next。
the first) time等来引导。
这些引导词在句子中的使用有不同的侧重点和用法。
1.1 when当我们用when引导时间状语从句时,它的主语和主句的主语相同。
如果从句的谓语动词是be动词,那么从句的主语和be可以省略。
例如:When I arrived home。
I had a little rest.1.2 asas不仅可以表示“当。
的时候”,还可以表示“一面。
一面”和“随着”的意思。
例如:XXX(一面。
一面)You will XXX(随着)1.3 whileXXX表示“当。
的时候”,强调主句的动作和从句的动作同时发生。
从句一般使用进行时,动词必须是延续性动词。
例如:While we were working。
they were having a rest.While they were having a n。
they got very confused.注意:while也有对比的含义,可以解释为“然而”。
例如:XXX。
XXX.2.until和not。
untiluntil和not。
until都表示“直到。
才”。
在肯定句中,主句常用延续性动词;在否定句中,主句常用短暂性动词。
高中英语状语从句详细讲解及例句
高考英语状语从句练习与讲解状语从句在句中相当于副词做状语,又叫副词性从句。
状语从句分为时间状语从句、条件状语从句、地点状语从句、原因状语从句、目的状语从句、让步状语从句、结果状语从句和比较状语从句。
掌握状语从句应当引导词入手,注意引导词的词义,引导状语从句的引导词都有词思,所以,了解引导词的意思尤为重要。
引导词按意义分为九类:1)时间when , as , while , till , until , before, after , since2)地点where3)原因because , as , since , now that4)条件if , unless , once .so (as)long as . in case5)让步though , whatever (--ever) as, even though, even if6)目的so that, in order that7)结果so ... that8)比较than, as .. as9)方式as , as if1.I fell asleep when ( as , while ) he was doing his exercises .他正作练习时我睡着了。
(时间状语从句)2.When he arrived in Shanghai , his mother met him at the station .他到上海时,他妈妈到车站接他。
(时间状语从句)3.She always sings as she walks .她总是一边走一边唱。
(时间状语从句)4.I waited until he had finished his work .我等到他做完活。
(时间状语从句)5.It was not long before he told me about this affair .不久,他就告诉我这件事。
(时间状语从句)6.He has worked very hard since he entered the factory 自从他进厂,工作一直很努力。
(word完整版)高中英语语法-状语从句归纳总结,推荐文档
状语从句一.分类:when (当……的时候) while (在……期间) as (当……的时候, 一边……一边……)before (在……之前) since (自从……以来) till/until (直到) hardly…when… (刚……就) as soon as (一……就……)after (在……之后) not…till/until(直到……才)no sooner…than…(刚……就) 地点状语从句:where (在那里) wherever(无论哪里)原因状语从句:because (因为) since (因为,既然) as (由于) for (为了) now that(既然)目的状语从句:(so)that=in order that(以便)so as(not)to (以便[不])in case(以免)lest(以免)结果状语从句:so+adj./adv.+that(如此……以致)so that(结果……)such+n.+that(如果……以致)that(所以,因此)让步状语从句:though/although不可同but连用。
though/although (虽然)however (可是)even though/if(即使)no matter+what/which/where/who/when =whatever/whichever/wherever/whoever/whenever(不论什么/哪一个/哪里/谁/何时)比较状语从句:as (正如)as…as(和……一样)not as/so … as (不如……)than(比……更)the+比较级…+the+比较级(越……越……)条件状语从句:if(假设)unless(如果不)so long as(只要)on condition that (如果)方式状语从句:as(像……那样地)just as(正像)as if(好像)as though(好像)二.各种状语从句的简化方法:1作状语。
高中状语从句讲解(经典打印版)
状语从句1. 时间状语从句(1) when引导的时间状语从句①when引导的时间状语从句,其动词既可以是延续性动作的动词,也可以是瞬间性动作的动词,可以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的动作之前。
when you apply for a job, you must present your credentials.当你申请工作时,你必须递交你的有关证件。
(同时)when the students heard the teacher’s footsteps, they a ll adopted talking.当学生们听到老师的脚步声时,他们都停止了讲话。
(从句动作发生在前)② when还可表示just then(正在那时)的意思,此时其所引导的从句只放在主句之后。
we were about to start when it began to rain. 我们正要动身,突然天下起雨来。
The game had hardly/scarcely/barely begun when it started raining. 比赛刚刚开始就下起雨来。
(2) as引导的时间状语从句as侧重表示主句和从句的动作并相发生,翻译成一边,一边。
We were having breakfast as she was combing her hair. 她梳头时我们在吃早饭。
(3) while引导的时间状语从句while或“在……期间”,所引导的从句的动作是延续性的,并表示和主句的动作同时发生。
When the teacher paraphrased the text in English, the students listened attentively and took notes. 当老师用英语解释课文时,学生们聚精会神地听并做着笔记。
I can learn while I work. 我可以边工作边学习。
【教育专用】高中英语狂K语法——句法篇:五、状语从句 Word版含解析
状语从句在句中相当于副词,做状语,又叫副词性从句。
状语从句分为时间状语从句、条件状语从句、地点状语从句、原因状语从句、目的状语从句、让步状语从句、结果状语从句、方式状语从句和比较状语从句。
1 地点状语从句地点状语从句通常由where, wherever引导。
例如:Where I live there are plenty of trees.在我住的地方有很多树。
Wherever I am I will be thinking of you.不管我在哪里,我都会想到你。
2 方式状语从句方式状语从句通常由as, as if, as though引导。
(1)as的用法Will you please do the experiment as I am doing?请按我的方法做这个实验好吗?(2)as if, as though的用法,①引导的方式状语从句所表示的情况是事实或具有很大的可能性时,通常用陈述语气,常与look/seem/taste/smell/sound等词连用。
It looks as if it is going to rain.看来要下雨。
②从句所表示的情况不是事实,而是主观的想象或夸大性的比喻,通常用虚拟语气。
The injured man acted as if nothing had happened to him.这个受伤的男子行动起来似乎什么也没有发生似的。
说明:as if/as though也可以引导一个分词短语、不定式短语。
例如:He stared at me as if seeing me for first time.他目不转睛地看着我,就像第一次看见我似的。
He cleared his throat as if to say something.他清了清嗓子,像要说什么似的。
3 原因状语从句because,as,since与for的不同用法:相同之处:中文都表示“因为”,均为连词。
高中状语从句语法及例句
高中状语从句语法及例句状语从句在高考试题中常与其他从句混淆,加上倒装句和强调句等结构,使其更加复杂。
状语从句通常由从属连词或起连词作用的词组引导,是一种副词性从句。
其中,时间状语从句由一些特定的连词或副词短语引导,如when、while、as、before、after、once、till、until、as soon as、now that、hardly…when、scarcely…when、___等。
此外,一些表示时间的名词短语也可引导时间状语从句,如by the time、the moment、the second、the minute、the instant、every time、each time、next time、the last time等。
需要注意的是,when、while和as引导的时间状语从句有些区别。
其中,as表示“当……的时候”,强调主句和从句的动作或事情同时或几乎同时发生。
例如:“当我在做饭时,她走了进来。
”;而when则既可以表示在某一点的时候,又可表示在某一段时间内,主句和从句的动作或事情可以同时发生也可以先后发生。
例如:“我们到达时正下着雨。
”、“我们在学校时,每天都去图书馆。
”、“当我们到达那里时,电影已经开始了。
”而while则强调一段时间里,仅表示从句和主句的动作同时发生,并且有延续意义。
从句中的动词一般要用延续性动词,常用过去进行时态或一般过去时态。
当when表示一段时间时,它和while可以互换使用。
___。
He dozed off while reading.While they were watching TV。
I was ___.___ while it is available。
(Note: "while" here means "take advantage of")John sings while he works.As his hands fell。
(完整版)状语从句(9种全)
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。
宾语从句,状语从句,定语从句,表语从句的详细讲解及例句
当我们学习语法时,我们常常会遇到几种从句,包括宾语从句、状语从句、定语从句和表语从句。
下面逐个进行详细讲解,并给出相应的例句。
1. 宾语从句(Object Clause):宾语从句用来做主句中的宾语。
它通常由连接词引导,如that, if, whether, what, where, who, whom, whose等。
例句:- I don't know what he wants.(我不知道他想要什么。
)- She asked if he could come to the party.(她问他是否能来参加派对。
)- They wonder where we are going.(他们想知道我们要去哪里。
)2. 状语从句(Adverbial Clause):状语从句用来修饰主句中的动词、形容词、副词,表示时间、地点、原因、条件、结果等。
它通常由连接词引导,如when, while, because, if, although, since等。
例句:- We will go hiking if the weather is good.(如果天气好,我们将去远足。
)- He studied hard until he passed the exam.(他学习努力直到通过考试。
)- Although it was raining, they still went out.(虽然下雨了,他们仍然出去了。
)3. 定语从句(Relative Clause):定语从句用来修饰主句中的名词或代词,对其进行限定或说明。
它通常由关系代词引导,如that, which, who, whom, whose等。
例句:- The book that I bought yesterday is very interesting.(我昨天买的那本书很有趣。
)- The person who is talking to Mary is my brother.(正在和玛丽说话的那个人是我哥哥。
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。
英语中状语从句用法及例句总结(完整)
状语从句(Adverbial Clause)状语从句指句子用作状语时,起副词作用的句子。
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。
状语从句的种类状语从句可分为:1.时间状语从句;(adverbial clause of time)2.地点状语从句;(adverbial clause of place)3.原因状语从句;(adverbial clause of cause)4.条件状语从句;(adverbial clause of condition)5.目的状语从句;(adverbial clause of purpose)6.让步状语从句;(adverbial clause of concession)7.比较状语从句;(adverbial clause of comparison)8.方式状语从句;(adverbial clause of manner)9.结果状语从句。
(adverbial clause of result)[编辑本段]状语从句的时态特点一般情况下,时间和条件状语从句的谓语动词一般用“一般现在时”表示“一般将来时”,用“现在完成时”表示“将来完成时”。
例如:I will call you as soon as I arrive in Beijing. 我一到北京就给你打电话。
(这是由as soon as引导的时间状语从句,从句中的谓语动词arrive是一般现在时,表示一般将来时,决不可用will arrive)As soon as I have finished this work, I will go home. 我一完成此工作,就回家。
(从句中的谓语动词用现在完成时have finished,表示将来完成时,决不可用will have finished)If he comes back, please let me know.如果他回来了,请通知我。
(完整word版)高中状语从句语法及例句
状语从句状语从句在高考试题中加上其它从句的干扰,以及倒装句,强调句的介入,使得状语从句更为复杂。
状语从句是一种副词性从句,通常由一个从属连词或一个起连词作用的词组引导。
1.时间状语从句由下列连词引导:when, while , as, before, after, once, till, until, once, as soon as, now that, hardly…when, scarcely…when, no sooner…than,有一些表示时间的副词(短语)或名词短语也可引导时间状语从句。
如:directly, instantly, immediately, by the time,the moment, the second, the minute, the instant, every time, each time, next time, the last time等注意点如下:1)when, while, as引导的时间状语从句as表示“当……的时候”,往往和when/ while通用,但它着重强调主句与从句的动作或事情同时或几乎同时发生。
①She came up as I was cooking.(同时)②When I was walking down the street, I came across an old friend of mine.我在街上行走时,碰到一位老朋友when(at or during the time that )既可以表示在某一点的时候,又可表示在某一段时间内,主句与从句的动作或事情可以同时发生也可以先后发生。
①It was raining when we arrived.(指时间点)②When we were at school, we went to the library every day.(在一段时间内)③When we arrived there, the film had already begun.(先后发生)While强调一段时间里,仅表示从句和主句的动作同时发生,并且有延续意义,该从句中的动词一般要用延续性动词,从句中常用过去进行时态或一般过去时态;在when表示a period of time时,两者可以互换。
高考状语从句
高考状语从句一、状语从句的定义与作用状语从句在句子中起副词作用,用来修饰主句中的动词、形容词、副词或整个句子。
它可以表示时间、地点、原因、条件、让步、比较、方式、目的等不同的意义。
二、常见类型及用法1. 时间状语从句- 引导词:when(当……时候),while(在……期间,强调同时性),as (当……;随着),before(在……之前),after(在……之后),since(自从;既然),until/till(直到)等。
- 例如:- When I got home, my mother was cooking.(当我到家的时候,我妈妈正在做饭。
)- While I was reading, he was watching TV.(我读书的时候,他正在看电视。
这里强调读书和看电视这两个动作同时进行)- As we grow older, we become wiser.(随着我们长大,我们变得更聪明了。
)- Before you leave, turn off the lights.(在你离开之前,关灯。
)- After he had finished his homework, he went to bed.(他完成作业之后就去睡觉了。
注意这里从句动作先于主句动作完成,用过去完成时)- Since I came to this school, I have made many friends.(自从我来到这所学校,我交了很多朋友。
since引导的从句常用一般过去时,主句用现在完成时) - He didn't leave until/till his mother came back.(直到他妈妈回来他才离开。
)2. 地点状语从句- 引导词:where(在……地方),wherever(无论在哪里)。
- 例如:- Put the book where you can find it easily.(把书放在你容易找到的地方。
高考状语从句知识点
高考状语从句知识点状语从句是高考英语中的一个重要语法点,掌握好状语从句对于理解和运用英语句子结构、提高英语语言能力有着至关重要的作用。
接下来,让我们一起深入了解一下高考中常见的状语从句类型及其用法。
一、时间状语从句时间状语从句表示时间关系,常用的引导词有 when(当……时候)、while(在……期间)、as(当……时;一边……一边……)、before(在……之前)、after(在……之后)、since(自从……)、until / till(直到……)等。
1、 when 引导的时间状语从句When I was a child, I often played in the park(当我还是个孩子的时候,我经常在公园玩耍。
)When he arrived home, it was already midnight(当他到家时,已经是午夜了。
)需要注意的是,when 引导的从句动作可以与主句动作同时发生,也可以先于主句动作发生。
2、 while 引导的时间状语从句While I was doing my homework, my mother was cooking(当我在做作业时,妈妈在做饭。
)While he was reading, his sister was singing(他在读书时,他妹妹在唱歌。
)while 引导的从句动作通常是持续性的,且主句和从句动作同时发生。
3、 as 引导的时间状语从句As I was walking along the street, I met an old friend(当我沿着街道走时,遇到了一位老朋友。
)As time goes by, we become more mature(随着时间的流逝,我们变得更加成熟。
)4、 before 和 after 引导的时间状语从句I had finished my homework before my father came back(在我爸爸回来之前,我已经完成了作业。
高中英语状语从句讲解及练习(含答案)
状语从句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、比较、地点、方式状语从句。
一、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)WhenEg: When I arrived home , I had a little rest.注意点:when 从句的主语与主句主语相同,谓语动词是be 动词时,从句主语和be可以省略。
Eg: When (she was) walking along the street, she met her class teacher.2)AsAs 除了表示“当```的时候”,还可表示为“一面```一面”,“随着”Eg: 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。
Eg: While we were working, they were having a rest.While (they were) having a discussion, they got very confused.注意点: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;在否定句中主句常用短暂性动词。
精选-高中英语语法时间状语从句讲解-word文档
时间状语从句常用的连词有:when,as,while,before,after,since,till,until,as soon as,once。
1、时间状语从句中一般不使用将来时态,尽管主句使用将来时态,一般使用一般现在时态或现在完成时态。
例句:I'll go on with the work when I come back tomorrow.我明天回来,我将继续做这项工作。
2、till/until引导时间状语从句,主句的谓语动词如是延续动词,可使用否认或不用否认,如果是不延续动词,必须使用否认形式。
例句:He didn't go to bed until it was 12 o'clock last night.他昨晚十二点才上床睡觉。
3、as soon as, the moment, every time, each time, the minute, the instant, the day, the week, the year, the first time,next time, any time, the last time, all the time, from the time, by the time, immediately, instantly, directly等表示时间的词语,后面也可以接时间状语从句,表示“一……就……〞。
4、主句使用过去进行时或过去完成时,或是was/were about to do sth.后面从句使用when从句,而且谓语动词使用一般过去时,这时when不当“当……时候〞解,而当“突然〞解。
五、时间状语从句的用法when,while和as都有“当……时候〞的意思,但在不同语境中意义也有所不同。
1、when 的用法如果只从现象来看,when从句用的最多的是一般过去时,而主句的时态没有限制,根据具体情况而定。
例句:When he was a child he was always trying out new ideas. 他小时候就常常试验一些新的设想。
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状语从句状语从句在高考试题中加上其它从句的干扰,以及倒装句,强调句的介入,使得状语从句更为复杂。
状语从句是一种副词性从句,通常由一个从属连词或一个起连词作用的词组引导。
1.时间状语从句由下列连词引导:when, while , as, before, after, once, till, until, once, as soon as, now that, hardly…when, scarcely…when, no sooner…than,有一些表示时间的副词(短语)或名词短语也可引导时间状语从句。
如:directly, instantly, immediately, by the time,the moment, the second, the minute, the instant, every time, each time, next time, the last time等注意点如下:1)when, while, as引导的时间状语从句as表示“当……的时候”,往往和when/ while通用,但它着重强调主句与从句的动作或事情同时或几乎同时发生。
①She came up as I was cooking.(同时)②When I was walking down the street, I came across an old friend of mine.我在街上行走时,碰到一位老朋友when(at or during the time that )既可以表示在某一点的时候,又可表示在某一段时间内,主句与从句的动作或事情可以同时发生也可以先后发生。
①It was raining when we arrived.(指时间点)②When we were at school, we went to the library every day.(在一段时间内)③When we arrived there, the film had already begun.(先后发生)While强调一段时间里,仅表示从句和主句的动作同时发生,并且有延续意义,该从句中的动词一般要用延续性动词,从句中常用过去进行时态或一般过去时态;在when表示a period of time时,两者可以互换。
①Please don’t talk so loud while/when others are working. 其他人工作时请不要大声讲话。
②He fell asleep while/when reading. 读书时他睡着了。
③While they were watching TV, I was preparing myself for the coming examination. 他们在看电视,而我在为即将到来的考试做准备。
Strike while the iron is hot.( 不可用as或when,这里的while意思是“趁……”)as表示主从句动作同时发生,所以常译作"一边…一边"。
John sings as he works.As his hands dropped he dropped with it, and I laid him down ,dead.当When引出的时间状语从句为系表结构,而且其主语和主句的主语一致,其表语又是一个名词时,就可以用as 引导的省略句来代替。
When he was a young man (= As a young man ) he was fond of hunting.2)before状语从句的重点句型It will (not ) be a period of time before 还要……才,要不了多久就……was (not) 过了……才, 没多久就……①It was a long time before I got to sleep . 过了好长时间我才睡着了。
②It wasn’t long before he told me about the news. 没多久他就告诉了我那条新闻。
③不等……就在---之前:Before I could get in a word, he had measured me.The telephone rang off before I could answer it. 我还没来得及接电话,电话就挂断了。
④刚……就:He hardly entered the room before he heard the telephone ring.⑤先……再:You can have a few days to think about it before you make your decision.做出决定之前你还有几天时间考虑Before she could move, she heard a great noise, which grew to a terrible roar.Before I could say a word, she had stormed out of the room.It will be five years before I come back.It was not long before the enemy was driven out of their country.It won’t be long before they understand each other.Do it before you forget it.二There is nothing that has not been bitter before being ripe.He was brought before the judg三I’ve seen the film Titanic before.I have never seen such beautiful flowers before.四Before long, he went to America.I hope to see you before long.She said she had read the novel long before.That happened long before.3)since 引导的从句用延续性动词的过去式(包括过去完成时),则从句的动作已经结束,从句意思是否定的。
如果从句的动词是延续性动词的完成时态,从句意思是肯定的。
It is /has been a period of time 延续性动词的过去式自从该动作结束已多长时间延续性动词的完成时态 since 该动作已延续了多长时间短暂性动词的过去式自从该动作开始已多长时间①He has never been to see me since I was ill.我病愈后,他一直未来看我。
(不在生病了)②He has never been to see me since I have been ill.我病了,他一直未来看我。
③I haven’t heard from him since he lived here.自从他这里搬走,我就没有收到他的信。
(不住在这儿了)④I know him very well since he has lived here near us.自他住在我们附近以来,我对他很了解。
⑤It’s three years since I was in the army.我退伍已三年了。
(不在服役了)⑥It’s three years since I have been in the army=It's three years since I joined the army.我入伍已三年了。
4)如果与till与until从句使用的主句是肯定的,则主句中谓语要用延续性动词如果与其使用的主句是否肯定的,则主句中谓语要用短暂性动词。
另till从句不可以置于句首,只有until 从句可以放在句首。
not until 放在句首时主句要倒装。
He didn’t go back to his hometown until three years later.=Not until three years later did he go back to his hometown.I didn’t recognize him until he took off his glasses.= Not until he took off his glasses did I recognize him.2.原因状语从句由下列连词引导:as, because, since, now that, considering that, seeing that(鉴于---)。
下面几点值得注意:because语气最强,用于回答why的提问,可与强调词only, just 以及否定词not 连用。
但不可以与so连用。
如You shouldn’t get angry just because some people speak ill of you.He failed because he was careless. 他因粗心而失败了。
because引导的从句可以被强调:It was because she wanted to study abroad that she entered for TOEFL2) since引导的从句语气次于because引导的从句,常表示稍加分析后而推断出的原因,或指人们已知的事实,比as正式一些,常置于句首。
as语气最弱,其原因只是对结果的附带说明,一般放在句首。
Since/ Now that no one is against it ,let’s carry out the plan.Since everyone has come, let’s begin our meeting.既然大家都来了,我们开会吧。
As all the seats were full, he stood there. 所有的座位都满了他只好站那儿。
3) for虽解释为“因为”但只是一个并列连词,它也常引导句子表原因,但不是原因状语从句,它是一个并列句。
for所提供的理由是一种补充性的说明,表推测的理由。
The day was short, for it was December.It might have rained last night for the ground is wet. 昨晚可能下雨了,因为地面是湿的。
She must have cried for her eyes are red. 她一定哭过了,她眼睛红的。