中考英语复习时间状语从句语法及练习(无答案)
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中考语法专题条件状语从句(讲解+练习,无答案)条件状语从句常用引导词:if, unless, as/so long as1、if 从句 + 祈使句,“如果……,就……”If you do not feel well, please go to see the doctor. 如果你感觉不舒服,就去看医生 吧。
If you want to know more about it, call now. 如果你想了解更多内容,现在就打电话 吧。
Make sure you visit the Science Museum if you ever go to London. 如果你去伦敦,一 定要去参观科学博物馆。
2、主将从现If I start after dinner, I’ll finish it before I go to bed. 如果我晚饭后开始,睡觉前我就能 完成。
主句也可用“情态动词 + 动词原形” She may come with us if she arrives in time. 如果她来得及时,就可以和我们一起去。
3、if 条件状语从句和并列句的转换Hurry up, or you’ll be late. = If you don’t hurry up, you’ll be late. Study hard and you will pass the exam. = If you study hard, you will pass the exam. 练习 (一)句型转换 1. Run fast, or you’ll be late for school. _______ you _______ _______ fast, you’ll be late for school. 2. You can buy the dictionary if you take enough money with you. Take enough money with you, _______ _______ _______ buy the dictionary. 3. If there is no air, none of us can live. None of us can live _______ _______.4、unless “除非”Don’t leave the building unless I tell you to. 不要离开大楼,除非我准许。
初中时间状语从句专项复习基础知识点(一)w h e n,w h i l e和a s引导时间状语从句的用法一、w h e n的用法如果只从现象来看,w h e n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。
1.W h e n h e w a s a c h i l d h e w a s a l w a y s t r y i n g o u t n e wi d e a s.他小时候就常常试验一些新的设想。
2.W h e n s h e c a m e i n t o m y r o o m,I w a s j u s t r e a d i n g a b o o k.她走进我房间时,我正在看书。
3.W e r e y o u w r i t i n g w h e nt h e t e a c h e r c a m e i n?老师进来的时候,你在写信吗?4.S o r r y,I w a s o u t w h e ny o u c a l l e d m e.对不起,你打电话来的时候我出去了。
5.H e w a s o n t h e p o i n t o f l e a v i n g w h e n s o m e o n e k n o c k e d a t t h e d o o r.他正要走,这时有人敲门。
6.I t h o u g h t o f i t j u s t w h e n y o u o p e n e d y o u r m o u t h.就在你要说话的时候,我也想到了。
7.I h a d h a r d l y[s c a r c e l y]c l o s e d m y e y e s w h e ns o m e o n e k n o c k e d a t t h e d o o r.我刚一闭上眼,就有人在敲门了。
根据以上的例句,我们可以总结出一点:w h e n从句的A事件,相当于另一个事件B发生的时间点。
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。
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: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“当……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。
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: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“当……的时候;一边……一边……;随着……”,其从句的主语与主句的主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。
状语从句1. 时间状语从句2. 条件状语从句3. 原因状语从句4. 结果状语从句5. 比较状语从句6. 目的状语从句7. 让步状语从句8. 地点状语从句用来修饰主句中的动词,副词和形容词的从句叫状语从句。
根据其含义状语从句可分为时间状语从句,地点状语从句,条件状语从句,原因状语从句,结果状语从句,比较状语从句,目的状语从句,让步状语从句。
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 when got to school yesterday.While he was doing his homework, the telephone rang.As he walked along the lake, he sang happily.He had learned a little Chinese before he came to China.After he finished middle school, he went to work in a factory.(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。
例如:I’ll ring you up as soon as I get to New York.I will tell him everything when he comes back.He won’t believe it until he sees it with his own eyes.(3)在带有till或until引导的时间状语从句的主从复合句里,如果主句用肯定式,其含义是“一直到……时”,谓语动词只能用延续性动词。
如果主句用否定式,其含义是“直到……才……”, “在……以前不……”, 谓语动词可用瞬间动词。
中考中考英语总复习状语从句专项练习(附答案)一、初中英语状语从句1.Daming hasn't done much exercise _______ he got his computer.A.when B.if C.though D.since【答案】D【解析】试题分析:句意:自从有了电脑,大卫就没有做许多运动了。
A. when当……时;指时间;B. if如果,表示条件;C. though虽然,尽管,表示让步;D. since自从,表示时间的起点。
不锻炼是从有电脑开始的,表示时间的起点,用since。
故选D。
考点:考查连词辨析。
2.I won't go he comes back.A.until B.while C.when D.why【答案】A【解析】句意:直到他回来,我才走。
A. until 直到; B. while当---时候; C. when当---时候; D. why为什么;not---until--- 直到---才---;故选A3.It is necessary for children to exchange ideas with parents from time to time ________ a good parent-children relationship could be set up.A.so that B.because C.as soon as【答案】A【解析】【详解】句意“为了建立良好的亲子关系,孩子们有必要不时地与父母交流思想”。
A.目的是,为的是(引导目的状语从句);B.因为(引导原因状语从句);C.一……就……(引导时间状语从句)。
根据句意可知,表示“目的是为了建立良好的亲子关系”,表示目的,故选A。
4._____ the weather is fine tomorrow, we will go fishing.A.As well as B.As soon as C.As long as D.As far as【答案】C【解析】【详解】C 本题考查连词短语用法。
中考专题之状语从句。
条件时间状语从句练习题(解析版)1.我会在他明天回来后立即把信息交给他。
答案:C解析:句子中的“as soon as”引导时间状语从句,如果主从句的动作都没有发生,为了区分动作的前后关系,主句用将来时,从句用一般现在时。
所以答案为C。
2.她正在客厅看电视时,门铃响了。
答案:C解析:句子中的“while”引导时间状语从句,主句为过去进行时,从句用过去进行时。
所以答案为C。
3.当我回来时,我发现我的母亲正在为我做饭。
答案:A解析:句子中的“when”引导时间状语从句,表示“当……时”。
所以答案为A。
4.除非我们坚持努力工作,我们不能成功。
答案:B解析:句子中的“unless”表示“除非”,引导条件状语从句。
所以答案为B。
10.建议你在睡觉前完成作业,因此时间状语从句应填before。
11.直到我告诉XXX,他才知道这件事。
根据句意,应填until。
Mrs。
Weeks was reading a newspaper story to her classabout Children'XXX for money to buy toys for sick children who may be bedridden for weeks。
After reading the story。
Mrs。
Weeks had an idea。
The students suggested bringing money or their own toys。
but Mrs。
Weeks proposed making toys instead。
The whole class XXX.Great。
Let’s start making toys tomorrow,” exclaimed Mrs。
Weeks。
On Saturday afternoon。
she took her students to the hospital to deliver the toys they had made。
2023年中考英语二轮复习状语从句一.选择题(共20小题)1.(2023•静安区一模)Denise plans to have a good rest________she'll have enough energy to continue her work.()A.so that B.as long as C.as soon as D.now that 2.(2023•闵行区一模)You should report your trip to the school________you travel outside the city.()A.unless B.until C.if D.while 3.(2023•锦江区模拟)—Dad,can I go climbing Mount E'mei with my classmates this winter vacation?—Sure,________you finish your homework.()A.since B.as long as C.unless4.(2022秋•铁西区期末)________these books are expensive,she still wants to buy them.()A.Until B.Though C.Unless D.When 5.(2022•弥勒市校级模拟)Salad is healthy but it is not that filling(易使人饱的)_____________you eat a lot.()A.because B.until C.unless D.if 6.(2022•惠民县一模)—I have a surprise for you.Keep your eyes closed.Don't open them ________I tell you to do so.—OK,Mrs.white.()A.or B.if C.until D.after 7.(2022•邵阳县模拟)_____nowadays people are recycling more,the use of plastic isn't decreasing at the same rate.()A.Since B.Although C.Unless 8.(2022•定远县模拟)__________he studied hard,he still failed the test.()A.Unless B.Though C.If D.Because 9.(2022•定远县模拟)I think you should have let him finish his speech,________you disagreed with him.()第1页(共12页)。
状语从句知识目标学生了解状语从句的分类,状语从句的作用及用法。
能力目标1. 加深学生对比较状语从句和方式状语从句的理解。
2. 提高学生对状语从句的做题能力。
知识梳理一.状语从句的定义状语从句就是在复合句中充当状语成分的从句。
状语从句(Adverbial Clause)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。
二.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:1.I will call you as soon as I arrive in Beijing. 我到北京就将给你打电话。
(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,绝不可用will arrive)2.As soon as I have finished this work, I will have gone 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,绝不可用will have finished)3.If he comes back, please let me know.如果他回来了,请通知我。
(从句中的谓语动词用comes back,表示一般将来时,绝不可用will come back)三、时间状语从句的分类1.时间状语从句时间状语从句可放在主句之前、主句之中或主句之后。
引导时间状语从句的从属连词主要有:after ,as ,as soon as ,before, since, once, until, till, every time/each time, the moment, the minute, immediately, directly, instantly等。
英语时间状语从句讲解(一)when, while 和as 引导时间状语从句的用法一、when 的用法如果只从现象来看,when 从句用的最多的是大凡过去时,而主句的时态没有限制,根据具体情况而定。
1. When he was a child he was always trying out new ideas.3. Were you writi ng whe n the teacher came in?老师进来的时候,你在写信吗?4. Sorry, I was out whe n you called me对不起,你打电话来的时候我出去了。
when 从句的重点不在动作本身发生的状态,而只是把它作为一个时间点,所以when 多数情况下用的是大凡过去时,则不用正在进行时。
因为如果用正在进行时,它表示的就是一段时间而不是一个时间点了。
根据这一点,有的文章补充说:when 从句的动词大多是瞬时动词。
这种说法也可以参照。
实际上,when 从句也可以有其它的时态,但几乎也不用进行时,因为它也只是作为一个时间参照点。
例如:2. When he had finished his homework, he took a short rest.3. Why do you want a new job when you have got such a good one already?二、while的用法相比于when 来说,while 从句的侧重点就不一样了。
while 从句的侧重点在于描述动作正在发生的状态,它的意思是:当while 事件正在发生的时候,另一件事如何如何。
所以,while 从句大凡用的是正在进行时。
而另一件事的状态没有硬性的要求,根据具体情况而定。
例如:1. While my wife was reading the newspaper, I was watching TV.2. While Jim was mending his bike, Lin Tao came to see him.3. While they were talki ng, the bell ran g.正在他们谈话的时候,上课铃响了从时间的角度来看,while 表示的是一段时间,是一个过程。
这是while 的侧重点。
因此,如果含有“一段时间”的含义的时候,就可以用while。
6. Strike while the iron is hot .趁热打铁。
这句话中,是说趁着铁是热的这段时间,赶紧打铁。
如果换成when 意思就变了,相当于说铁只热了一下,打一下,然后铁就冷了。
这显然不符合文意。
再例:—I“m going to the post office.—While you “ re there, can you get me some stamps?三、as的用法as从句表示的也是一件事情正在发生,另一件事也正在进行当中。
但与while从句例外的是,as从句用的大凡不用正在进行时,而只是大凡过去时。
as从句大凡可以翻译成边•…边..... 。
例如:1. As my mother sang those old songs, tears ran down her cheeks.2. The stude nts took notes as they liste ned 学生们边听课边做笔记。
3. As we talked on, he got more and more excited.as表达的事件,往往只是主句动作发生的背景或条件时,as只是一个次要的时间说明,不像while从句有强调while动作本身的意思。
因此,as常常翻译成“随着……之”意。
例如:1. As the time went on, the weather got worse.随着时间的推移,气候更加倒I—>霉。
2. The atmosphere gets thinner and thinner as the height increases.3. As years go by,China is getting stronger and richer. 少数情况下,如果强调动作正在发生,as 从句也可以用正在进行时。
这只能算是特例了。
1. The sad mother sat on the roadside, shouting as she was crying.2. As we were goi ng out, it began to sn ow合法我们出门时,雪开始下起来。
3. He came in as I was goi ng to be(我正要上床睡觉,他进来了。
四、when, while, as 的互换如果从句动作和主句动作同时发生,并且从句动作为延续性动词时,when, while,as 可以互换使用。
1. Whe n /While /As we were dancing, a stra nger came in .[da nee 为延续性动词]2. Whe n /While /As she was maki ng a phone call, I was writ ing a letter. [make为延续五、比较while, when, as1 )as, when 引导短暂性动作的动词。
例如:Just as / Just when / When I stopped my car, a man came up to me.)2 当从句的动作发生于主句动作之前,只能用when引导这个从句,不可用as或while。
例如:When you have finished your work, you may have a rest.3)从句表示随时间推移”连词能用as,不用when或while。
例如:As the day went on, the weather got worse.(二)before 和after 引导的时间状语从句1.Before 是主句动作发生在从句的前面。
注意before 引导的从句不再用否定式的谓语,并且当before 引导的从句位于主句之后,有时译成“就,才”。
还要注意主句和从句之间的时间关系。
当主句用将来时,从句总是用现在时;如果before 引导的从句谓语用的是过去时,则主句动词多用过去完成时,这样以便体现动作发生的先后。
2.After 表示主句动作发生在从句动作之后。
主句和从句的动作的时间关系凑巧与before 引导的从句相反。
例如:It will be four days before they come back 他们要过四天才能回来。
After we had finished the work, we went home. (从句用过去完成时,主句用大凡过去时)(三)比较until 和till 的用法此两个连词意义相同。
肯定形式表示的意思是“做某事直至某时”,动词必须是延续性的。
否定形式表达的意思是“直至某时才做某事”。
动词为延续性或非延续性都可以。
正确使用这两个连词的关键之一就在于判断句中的动词该用肯定式还是否定式。
肯定句:I slept un til mid night.我一直睡到半夜时醒了。
Wait till I call you.等着我叫你。
(在肯定句中可用before 代替。
例如:Let“s get in the wheat before the sun sets.)否定句:She didn “ t arrive until 6 o 她直至“ 6lo点才到。
Don “t get off the bus until it has stopped^共汽车停稳后再下车。
(四)区别:1)until 可用于句首,而till 通常不用于句首。
例如:Until you told me, I had heard nothing of what happened.3)until when 疑问句中,until 要放在句首。
例如:---U ntil whe n are you stayi ng?你呆到什么时候?--- Until next Monday. 呆到下周一。
注意:否定句可用另外两种句式表示。
4) Not until在句首,主句用倒装。
例如:Not until the early years of the 19th century did man know what heatis.Not until I began to work did I realize how much time I had wasted.5) It is notuntil …that ….例如:It was not until I began to work that I realized how much time I had wasted.(四)巧辨before 禾口until在日常英语教学中,我们遇到学生问这样的一些问题:1. ___________________________ Hewillspendsixhoursathisdesk he finishes hiscomposition.A.beforeB.untilC.afterD.when2. ___________________ The bike hit the tree I could get off.A.whenB.beforeC.whileD.until3.I knocked at the door for more than five minutes ___ Mrs white answered it.A.untilB.whenC.afterD.before4.It was ___ y esterday ___ be ___ the secret.A.not until ;that;knewB.until;when;knewC.not before;that;foundD.before;that;didn “t find 怎样才能清晰地解释其选择的原因,这就涉及到until 与before 的区别问题。
实际上,只要我们把握住两者使用时本身的含义及主句动词是终止性的,还是延续性的,肯定式,还是否定式两大点,就能简易地解决这类问题。
现详细阐明如下:一、在下列情况下,两者可互换用,但含义略有例外。
before 表示在…••之前”的意思,强调时间先后关系;而until表示直到…•才”的意思,主句是肯定句则表示主句动作的终止时间;主句是否定句则强调主句动作的起始时间。
1.主句为否定式终止性谓语动词。
多见的动词是open,start,leave,arrive,finish,stop 等。