中考英语考点：条件状语从句

中考英语考点：条件状语从句

引导条件状语从句的连接词主要有：if(如果)、unless(除非)或as long as(只要)等。unless在意思上等于if...not。

一、条件状语从句用法

1、引导条件状语从句最常用的连词是if,由if引导的条件状语从句表示在某种条件下某事很可能发生。如:

If you ask him, he will help you.如果你请他帮忙,他会帮你的。

If you fail in the exam, you will let him down.如果你考试不及格,你会让他失望的。

另外,if从句还表示不可实现的条件或根本不可能存在的条件,也就是一种虚拟的条件或假设,从句多用一般过去时或过去完成时。如: If I were you, I would invite him to the party.如果我是你,我会邀请他参加聚会。

2、unless = if...not.除非,若不,除非在……的时候

例如：Let's go out for a walk unless you are too tired.

=If you are not too tired, let's go out for a walk.

Unless it rains, the game will be played.除非下雨,比赛将照常进行。

3、so/as long as只要

例句;You may borrow my book as long as you keep it clean. 只要你保持书的清洁，你就可以把我的书借去。

So long as you're happy, it doe sn't matter what you do. 只要你高兴，你做什么都没有关系。

二、时态问题

在条件状语从句中，要注意"主将从现"的规定，即主句用一般将来时，从句用一般现在时表示将来时。例句：I will come to see you if I have time. 我有时间，我就来看你。

常见考法

对于条件状语从句的考查，多以单选和完形填空的形式，从时态的角度设题，考查学生

灵活运用的能力，或从连词的意义角度让大家选择连词。

典型例题：If he ___in half an hour,we ___wait for him.

A. won't come ,won't

B.won't come ,don't

C.doesn't come ,won't

D.will come ,don't

解析：本题考查条件状语从句"主将从现"的运用。题干的意思是"如果他一小时后不来，我们将不会等他了"，从"in half an hour"，"一小时后"可知本句说的是未来的事，那么if引导的条件状语从句要用一般现在时表示将来时，主句要用一般将来时。

答案：C

误区提醒

if 既可以引导条件状语从句，表示"如果"，也可以引导宾语从句，表达"是否"。辨别它在这两种从句中的时态是我们经常容易出错的地方。另外，if 和unless的用法也需注意。

典型例题：----I wonder if you r wife to the party.

----If your wife _________, s o will mine。.

A. will go，go

B. will go, goes

C.goes, will go

D. will go, will go

解析：第一句中if表示"是否"，引导宾语从句，用将来时will go;第二句"如果你的妻子去，我的妻子也去"，if引导条件状语从句，用一般现在时表示将来时。your wife，单三人称主语，所以用goes 。

答案：B

中考英语考点：条件状语从句 引导条件状语从句的连接词主要有：if(如果)、unless(除非)或as long as(只要)等。unless在意思上等于if...not。 一、条件状语从句用法 1、引导条件状语从句最常用的连词是if,由if引导的条件状语从句表示在某种条件下某事很可能发生。如: If you ask him, he will help you.如果你请他帮忙,他会帮你的。 If you fail in the exam, you will let him down.如果你考试不及格,你会让他失望的。 另外,if从句还表示不可实现的条件或根本不可能存在的条件,也就是一种虚拟的条件或假设,从句多用一般过去时或过去完成时。如: If I were you, I would invite him to the party.如果我是你,我会邀请他参加聚会。 2、unless = if...not.除非,若不,除非在……的时候 例如：Let's go out for a walk unless you are too tired. =If you are not too tired, let's go out for a walk. Unless it rains, the game will be played.除非下雨,比赛将照常进行。 3、so/as long as只要 例句;You may borrow my book as long as you keep it clean. 只要你保持书的清洁，你就可以把我的书借去。 So long as you're happy, it doe sn't matter what you do. 只要你高兴，你做什么都没有关系。 二、时态问题 在条件状语从句中，要注意"主将从现"的规定，即主句用一般将来时，从句用一般现在时表示将来时。例句：I will come to see you if I have time. 我有时间，我就来看你。 常见考法 对于条件状语从句的考查，多以单选和完形填空的形式，从时态的角度设题，考查学生

时间状语从句 要点: 时间状语从句，由以下连词引导： when while as after before as soon as since till /until by the time 在时间状语从句中，要注意时态一致。一般情况下主句是将来时的时候，从句要用一般现在时。 当。。。的时候 mozart started writing music when he was four years old. (当)莫扎特的时候，开始写音乐作品。 当。。。时 he visited a lot of places while he was traveling.他在旅途中参观了许多地方。 在。。。的同时；一边。。。一边。。。 he smiled as he stood up.他一边站起来一边笑着。 在。。。之后 he left the classroom after he had finished his homework the other day. 前几天做完作业之后回的家。 在。。。之前 mr. brown had worked in a bank for a year before he came here. 布朗先生来这之前已经在一家银行里工作一年了。 soon as 一。。。就。。。(主将从现) we began to work as soon as we got there.我们一到那就开始工作。 i will write to you as soon as i get home.我一到家就给你写信。 自。。。以来到现在 表示自过去的一个起点时间到目前(说话时间)为止的一段持续时间。主句一般用现在完成时，从句用一般过去时。 mr green has taught in that school since he came to china three years ago. 自格林先生来中国以来，他就在这所学校教书。 (还可以用作介词，本句从句还可以用短语：since three years ago(自三年前以来)表示。) 8 till /until都可以作连词，连接时间状语，也可以作介词，与其它词构成介词短语，在句中作状语。 they walked till /until it was dark.他们一直走到天黑。 xiao ming didn’t leave home till / until his father came back.小明直到他爸爸回来才离开家。 9. by the time 到。。。为止 (所在句子的主句应用完成时) by the time he gets there , his father has already gone.他到家的时候，他爸爸已经走了。 by the time i got to school, the class had already began.我到校时，已经开始上课了。 难点——as when while的辨析 as when while都表示主、从句动作同时发生，三者差异如下： as 表示“一边。。。一边＂的意思 强调两个动作同时进行，并表示对比时 when 1、还可以表示从句动词的动作在主几句动词的动作＂之前＂或＂之后＂发生。 2、when＝and then; at that moment (正在那个时候)

中考初中英语条件状语从句分析（全，含练习及答案） 本节课我们学习其中的条件状语从句。 目录： 一、概念； 二、时态； 三、条件状语从句的引导词； （一）if 引导的条件状语从句； （二）unless引导的条件状语从句； （三）as /so long as引导的条件状语从句； （四）once引导的条件状语从句； 四、条件状语在句中的位置； 五、转换； 六、拓展； 七、综合练习； 一、概念 在某种条件下，可能发生某事。由if/unless等引导的表示条件的句子，就叫条件状语从句。 e.g: If you put wood into water, it floats. 如果你把木头放到水里，它就会浮起来。 Unless you keep ice cream in a fridge, it melts. 除非你把冰淇淋放进冰箱，不然它就会融化。 二、时态 1．当主句和从句所表示的是原理、客观真理、规则时，主句是一般现在时

（包括祈使句和含有情态动词can/may/must等），从句也要用一般现在时。 例如： 1) If you put a piece of paper into water, it gets wet．如果你把一张纸放进水中，它会变湿。(原理) 2)Be careful if you cross the road.(祈使句) 3) You must see the doctor if you are ill.( 含有情态动词） 2. 在if条件状语从句中，如果从句谈论的是一个可能发生的事实及其产生的相关结果，主句用一般将来时，从句用一般现在时。 e.g: 1) If it rains tomorrow, we will not go to the zoo. 2) If you go to bed earlier, you won't feel tired in the morning. 3. 如果从句用现在进行时或现在完成时，主句需用一般将来时。 1）If you are looking for Peter you’ll find him upstairs. 如果你是在找彼得，上楼就会找到他。 2）If you have finished dinner I’ll ask the waiter for the bill. 如果你吃完了，我就叫服务生来算账。 三、条件状语从句的引导词 （一）if 引导的条件状语从句 引导条件状语从句最常用的连词是if，常见的if条件状语从句表示在某条件下，某事很可能发生，条件是可能存在的，主句中某种情况发生的概率也是很高的。 如： If you ask him，he will help you．如果你请他帮忙，他会帮你的。 If you fail in the exam，you will let him down． 如果你考试不及格，你会让他失望的。 If you have finished the homework，you can go home． 如果你作业做完了就可以回家了。 另外，if从句还表示不可实现的条件或根本不可能存在的条件，也就是一种虚拟的条件或假设。从句多用一般过去时或过去完成时，表示对现在或过去的一种假设。 如：

高考英语状语从句八类常考考点 状语从句是高考英语的必考考点，综观近年来各省市状语从句的考题情况，我们发现以下八类状语从句特别值得关注： 一、in case引导的状语从句 根据语境的不同，in case既可表示“如果”“万一”，引导条件状语从句；也可表示“以防(万 一)”，引导目的状语从句。下面两道真题均选in case： 1. Leave your key with a neighbor ______ you lock yourself out one day. (北京卷) A. ever since B. even if C. soon after D. in case 2. My parents live in a small village. They always keep candles in the house ______ there is a power cut. (重庆卷) A. if B. unless C. in case D. so that 【解析】两道题都选in case，均表示“以防万一”。 二、before引导的状语从句 尤其要注意“it+be+一段时间+before…”这一句型。如： 1. The field research will take Joan and Paul about five months; it will be a long time ______ we meet them again. (安徽卷) A. after B. before C. since D. when 2. He was told that it would be at least three more months ______ he could recover and return to work. (江西卷) A. when B. before C. since D. that 【解析】两道题均before。第1题涉及的句式为：It will be a long time before…，意思是“要过很久才会……”；第2题涉及的句式为：it was some time before…，意思是“在……之前过了一段时间”，通常可转译为“要过一段时间才会……”。 三、while引导的状语从句 尤其要注意while表示“尽管”“虽然”时的用法（此时它引导的不是时间状语从句，而是让步状语从句——此用法许多同学并不熟悉，值得特别注意！）。如： ______ I really don’t like art, I find his work impressive. (山东卷) A. As B. Since C. If D. While 【解析】答案选D。while在此表示“尽管”“虽然”，又如：While the work was difficult, it was interesting. 尽管工作有难度，但很有趣。/ While I understand what you say, I can’t agree with you. 虽然我理解你的意思，但我还是不同意。 另外，while表示对比的用法也值得注意（此时它表示“而”）。如： The cost of living in Glasgow is among the lowest in Britain, ______ the quality of life is probably one of the highest. (天津卷) A. since B. when C. as D. while

中考英语状语从句专题(含答案) 一、初中英语状语从句 1．—I don ' t know if Sam tomorrow. —Don't worry. I will tell you as soon as he . A．will come; comes B．comes; will come C．will come; will come D．comes; comes 【答案】A 【解析】 【详解】 句意：——我不知道萨姆明天是否会来。——别担心，他一来我就告诉你。 第一个句子为if引导的宾语从句，根据从句中的时间状语tomorrow判断，从句的时态为一般将来时，排除B,D；第二个句子是as soon as引导的时间状语从句，遵循“主将从现”的原则，本句的主句是一般将来时，as soon as引导的从句要用一般现在时，故答案为A。 2．We don’t know the love of our parents ____________ we become parents ourselves one day. A．before B．until C．when D．after 【答案】B 【解析】 【详解】 句意：直到有一天我们自己成为父母，我们才知道父母的爱。考查连词辨析。before在……以前；until直到，和not连用表示“直到……才”；when当……的时候；after在……以后。本句是“not …until”结构；根据句意结构和语境，可知选B。 3．The nurse won’t leave her patients ______ she’s sure somebody else takes good care of them. A．if B．because C．since D．unless 【答案】D 【解析】 【详解】 句意：这个护士如果不确定其他人照顾她的病人，她不会离开他们。if如果，引导条件状语从句用一般现在时，主句用一般将来时；because因为，since自从，引导时间状语从句，主句用现在完成时；unless除非，如果不，引导条件状语从句用一般现在时，主句用一般将来时；结合句意，如果她不确定有人照顾病人，她不会离开。故选D。 4．__________ you have tried it on, you can’t imag ine how pretty the new style skirt is. A．Because B．Although C．Unless D．When 【答案】C 【解析】 本题的含义是如果你不尝试一下，你将不能想象一下这件新款式的裙子有多么漂亮，unless表示如果不的意思，故本题选C。

中考复习专题状语从句知识点总结及经典习题(含答案) 一、初中英语状语从句 1． the journey was tiring，Jeff thought it was worth both the time and the money. A．As B．Since C．Unless D．Although 【答案】D 【解析】 【详解】 句意：虽然旅途很累，杰夫认为时间和金钱都值得。 A. As当……的时候； B. Since 自从； C. Unless除非； D. Although尽管。根据下文Jeff thought it was worth both the time and the money.可知上文是让步状语从句，这里用Although引导。根据题意，故选D。 2．--- I wonder if Tina to China next week. --- If it ，she will come. A．will come；won’t rain B．comes；doesn’t rain C．comes；won’t rain D．will come；doe sn’t rain 【答案】D 【解析】 【详解】 句意：——我想知道蒂娜下周是否会来中国。——如果不下雨，她就会来。根据语境推测对话的语境是“——我想知道蒂娜下周是否会来中国。——如果不下雨，她就会来。”，第一个设空处的if意思是“是否”，引导宾语从句，主句是一般现在时，从句根据时间状语next week确定用一般将来时，一般将来时的构成是：主语+will+动词原形，排除B/C；第二个设空处考查含有if引导的条件状语从句中主句的时态，在含有条件状语从句中的复合句中，时态遵循“主将从现”的原则，即：主句用一般将来时，从句使用一般现在时表将来，表示“不下雨”应借助于助动词does，故选D。 3．You are sure to fail the exam ________ you study hard. A．if B．unless C．since D．that 【答案】B 【解析】 试题分析：句意：如果你不努力学习，你一定会考试不及格的。A.if如果；B. unless如果不；C. since自从；结合句意，故选B。 考点：考查连词的用法。 4．--Where is the comic book? --I brought it to you ________you were in the reading room yesterday. A．when B．if C．because D．before 【答案】A

初中英语―条件状语从句 一．条件状语从句的概念 条件状语从句，即在某种条件下，一件事情可能发生。在英语中由连接词if或unless 等引导的状语从句叫做条件状语从句。条件是指某一件事情实现之后（状语从句中），一件事情（主句）才能发生，通常译作“假如，只要，如果”等意思。条件状语从句中，主从句的时态要遵循“主将从现”的原则。即，主句是将来时态时，从句用一般现在时代替将来时态。 二.条件状语从句的引导词 1.If conj . 如果，假如 If you ask him，he will help you．如果你请他帮忙，他会帮你的。 If you fail in the exam，you will let him down． 如果你考试不及格，你会让他失望的。 2.unless conj.除非,若不,除非在……的时候（if ...not...） You will fail to arrive there in time unless you start earlier. 如果你不早点动身,你就不能及时赶到那儿。 Unless it rains, the game will be played.除非下雨,比赛将照常进行。 3.so/as long as conj.只要 You may borrow my book as long as you keep it clean. 只要你保持书的清洁，你就可以把我的书借去。 三．关于条件句的时态，常见的有以下三种情况： 1、条件状语从句的主句是一般将来时，那么从句常常用一般现在时。 When I grow up, I’ll be a nurse and look after patients. 我长大后要当一名护士，照顾病人。 2、如果主句是祈使句，那么从句通常要用一般现在时。 If you want to have a chat ,call me up. 如果你想聊天，打我电话。

高考英语专题状语从句知识点真题汇编及解析 一、选择题 1．Tom was so angry____ he heard his friend betrayed him____ he tore the letter into two immediately. A．that; when B．that; that C．when; what D．when; that 2．______ the environmental impacts of larger plastics are well documented, very little is understood about the dangers associated with micro plastics. A．While B．As C．Because D．If 3．Manchester United has decided that Wayne Rooney will not be sold to any other club no matter how much money is offered or ______ the potential risks of keeping an unhappy player. A．however B．whether C．what D．whatever 4．I will try my best to get lo the station ahead of time ____ I have to walk all the way there. A．so that B．as though C．even if D．in case 5．_____ I once made some mistakes, I won’t spend a moment of the future regretting what might have been. A．Until B．While C．Unless D．Because 6．Believe it or not, some English idioms are very difficult to understand ______ you know the meaning of each word. A．as if B．in case C．now that D．even if 7．House prices vary from place to place and are usually high ______ there are famous schools. A．where B．when C．which D．whether 8．The leaders of Catalonia said that he had decided to delay the declaration of independence ______ they could have a further negotiation with Spanish government. A．in case B．in order to C．so that D．not until 9．I was so proud _______ my team won the ice hockey competition. It made me feel like I could achieve anything. A．while B．when C．before D．until 10．_____ you may meet, you should face the challenge bravely. A．However a serious problem B．What a serious problem C．However serious a problem D．What serious a problem 11．Many countries have a Mother’s Day, ________ they don't always fall on the second Sunday in May. A．when B．though C．as D．once 12．—We have decided to go for a picnic tomorrow, Jack. Are you going with us? —Well, ______ you are going, so will I. A．when B．since C．if D．while 13．Peter had been puzzled over the problem for over an hour___________ all at once the solution flashed across his mind. A．when B．while C．then D．as 14．Elephants usually won’t attack a person ________ one becomes a danger to them. A．until B．although C．unless D．when

初中英语状语从句知识点总结（一） 用来修饰主句中的动词，形容词或副词等而充当状语的从句叫做状语从句。状语从句常用从属连词来引导，与主句连接起来。若置于句末，则前面不加逗号。根据意义和作用，状语从句可分为时间原因条件等几种。下面我们就来分析一下这几种状语从句。 1时间状语从句 时间状语从句常用从属连词when,after,until,as soon as,等来引导。 当主句是祈使句或谓语动词是一般将来时态或情态动词时，其时间状语从句中的谓语动词常用一般现在时态表示将来发生的动作或存在的状态。这就是我们常说的“主将从现”。 如：Please call me when you get there.当你到那时，请给我打个电话。 I will write to you as soon as I arrive in Beijing.我一到北京就给你写信。 <温馨提示>since引导时间状语从句表示“自从…以来”，从句中的动词一般表示动作的起点，用过去时;而主句的动作延续的情况则用一般现在时或现在完成时。常用的句型为： It has been/is+一段时间+since+过去时。 如：I has been/is three years since we met last time.自从我们上次见面，已经三年了。 2条件状语从句 引导条件状语从句的连词或词组有：if(如果),unless(除非),as long as(只要)等。如果主句是将来时，条件状语从句也用一般现在时来表示。 如：I will stay at home if it rains tomorrow.如果明天下雨，我就待在家。 You can’t learn English well unless you wo rk hard. 除非你努力学习，否则是学不好英语的。 <温馨提示>由if引导的条件状语从句，若从句表达的是与现在事实相反的事实，则常用虚拟语气，即用过去时态表示(如果涉及到be动词，一律都用were)。此时，主句则用过去将来时。

中考英语状语从句考点归纳与例析 【重点讲解】 中考英语试题对状语从句的考查主要涉及引导状语从句的从属连词的用法。单项选择题的四个选项往往是四个连词，这是状语从句最常见的考查形式。另一个考点是状语从句中的时态，因此，在学习状语从句时要弄清状语从句的几个主要类别，如时间、地点、原因、条件、让步、方式、目的、结果等，同时记住它们的“引导词”及其相关意义。 考点一：引导状语从句的连词的选择。 1、引导时间状语从句的连词主要有when, while, as, by the time, before, after, since, till/until, as soon as等。其中when，while和as都可表示"当……时候"，但用法有区别: when意为"在……时;当……时",可表示"点时间"或"段时间",从句谓语可以是终止性动词,也可以是延续性动词。例如: When I got home, he was having supper. as意为"边……边……"或"与……同时",重在表示两个动作同时发生。伴随进行。as从句是终止性动词时,主句通常也必须是终止性动词。例如: They sang as they danced. while只可表示"段时间",从句谓语只限于延续性动词。例如: While I was sleeping, my father came in. 注意：从句谓语是持续性动词时,when，while和as可以互换。主、从句谓语都是终止性动词时，when与as可互换。从句谓语表示状态时，通常用while。 2、引导地点状语从句的常用连词是where。例如： Where there is a will there ia a way. 3、引导原因状语从句的连接词主要有because, as, since, for。例如： Tom was late for school this morning because he didn’t catch the early bus. As he was not well,I decided to go there without him. Since this method doesn't work, let's try another. for表示所说的理由是一种补充说明，因此, for引导的从句一般不放在句子的开头。例如: I decided to stop and have lunch, for I was feeling quite hungry. 注意：because语气最强，as, since, for次之。对于以why开头的问句，一般要用because引导的从句来回答。 4、引导条件状语从句的连接词主要有if, unless, as long as。例如： If I am not busy tomorrow, I will play football with you. Unless you tried it, you can’t imagine how pleasant it is. 5、引导让步状语从句的连接词有although, though, even if, even though。例如： Although (though) I gave him some advice, he didn’t take them.

高考英语最新状语从句知识点基础测试题附解析 一、选择题 1．______ this approach is effective in losing weight, it is not as beneficial as keeping a balanced diet. A．Once B．While C．Unless D．Until 2．Why do many students stick to private tutoring _____ they could easily master such knowledge at school? A．unless B．before C．after D．when 3．______the damage is done, it will take many years for the farmland to recover. A．Until B．Unless C．Once D．Although 4．The basic model function of the hero seems to remain constant, ______ the precise qualities of hero may vary over time. A．in case B．as if C．so that D．even though 5．—Did you return Fred’s call? —I didn’t need to ____ I’ll see him tomorrow. A．though B．unless C．when D．because 6．Do not make complaints about being left out___you shy away from sharing your joys and sorrow with others. A．when B．unless C．once D．until 7．The leaders of Catalonia said that he had decided to delay the declaration of independence ______ they could have a further negotiation with Spanish government. A．in case B．in order to C．so that D．not until 8．—Mr. Robert, I’d like to take a gap year to volunteer for a global anti-Aids campaign.—That’s great, ______ you can afford the time. A．provided that B．in case C．even if D．so that 9．Modern science has found that _______ one is using chopsticks, over 30 joints and over 50 muscles are used, which is a favorable stimulation to the brain. A．since B．although C．unless D．while 10．Under the regulation, restaurants and hotels shall stop offering throwaway items_______customers request them. A．since B．once C．unless D．until 11．You should take control of your life _________ it is planning coursework or picking a major. A．whenever B．whether C．whatever D．no matter 12．Jim put a table and chair in the spare room ________ his son could have a private place to study. A．even if B．only if C．for fear that D．in order that 13．These masterpieces in the Louvre Museum reach out to us across the centuries ______ time itself were nothing.

中考英语状语从句专项训练及答案 一、初中英语状语从句 1．We don't know the love of our parents _______ we become parents ourselves one day. A．until B．after C．when D．since 【答案】A 【解析】 句意：直到有一天我们成为父母，才知道父母的爱。本题考查连词。A. until到…为止，在…以前; 直到…才;B. after在…以后;C. when当···时候；D. since自从; 从…以来; Not until 直到···才···；不到···不···，是固定搭配，故选A。 2．—I see Bob, he’s always listening to music. —Yeah, he’s crazy about it. A．Whenever B．Although C．Since 【答案】A 【解析】 【详解】 句意“-无论我什么时候看到鲍勃，他总是在听音乐。-是的，他对音乐很疯狂”。A.无论何时（引导时间状语从句）；B.尽管（引导让步状语从句）；C.自从（引导时间状语从句）。根据句意可知，译为“无论何时”，故选A。 3．—The novel seems a little boring. —You won’t enjoy it _______________ you put your heart into it. A．when B．if C．after D．unless 【答案】D 【解析】 试题分析：句意：--这部小说似乎有点儿无聊。--如果你不用心读的话，你不会享受到这本书。when，当……的时候；if如果；after在……之后；unless，如果不，除非。结合句意，故选D。 考点：考查连词的用法。 4．He doesn't tell me when he_______ . I'll telephone you as soon as he______. A．will come;comes B．will come; will come C．comes; will come D．comes; comes 【答案】A 【解析】 试题分析：句意：他没告诉我什么时间回来。他一回来我就告诉你。宾语从句中表示将

中考英语状语从句知识点总结及经典习题(含答案) 一、初中英语状语从句 1．We don't know the love of our parents _______ we become parents ourselves one day. A．until B．after C．when D．since 【答案】A 【解析】 句意：直到有一天我们成为父母，才知道父母的爱。本题考查连词。A. until到…为止，在…以前; 直到…才;B. after在…以后;C. when当···时候；D. since自从; 从…以来; Not until 直到···才···；不到···不···，是固定搭配，故选A。 2．I have to leave now __ I can catch the last bus. A．so that B．because of C．until D．as soon as 【答案】A 【解析】 试题分析：so that以便，所以；because of因为，由于；until直到；as soon as一……就……。句意：为了赶上末班车，我现在必须离开了。结合语境可知选A。 考点：连词辨析 点评：连词在句子中主要起联系上下文的作用，他们之间的区别就是表示逻辑关系的不同，所以在解题时先要理解上下文含义，然后根据上下文逻辑关系选择合适的连词。连词的用法都比较多，语义之间还有交叉，熟记其基本应用规则，了解其区别，注意固定搭配对象，是做好此类题型的关键。 3．---Would you like to go bike riding with us tomorrow? ---Sure, ____ I am busy. A．since B．unless C．when D．until 【答案】B 【解析】 试题分析：句意：----你想要明天和我们一起去划船吗？好的，如果我不忙我就去。A自从；B如果不；C当……时候；D直到……才。根据句意，应选B。 考点：考查连词。 4．You will fall behind others ______ you work hard. A．if B．unless C．though D．since 【答案】B 【解析】 试题分析：句意：如果你不努力学习，你会落后别人。A.because因为；B. If如果；C. Unless如果不； D. Though虽然。结合句意，故选B

高考英语状语从句知识点知识点总复习 一、选择题 1．Many adults agree that teenagers shouldn't live alone they have their parents’ permission. A．if B．unless C．in case D．now that 2．He differed _________ other people __________ he always looked further ahead in his work. A．from; in which B．from; in that C．with; in which D．with; in that 3．There are other languages that sound extremely different, ________ they’re conveying exactly the same meaning. A．as though B．even though C．so that D．in that 4．—Did you return Fred’s call? —I d idn’t need to ____ I’ll see him tomorrow. A．though B．unless C．when D．because 5．Mary rushed home______ she heard the news, only ______ that her husband was gone. A．as soon as; finding B．immediately; to find C．the moment; find D．when; found 6．House prices vary from place to place and are usually high ______ there are famous schools. A．where B．when C．which D．whether 7．The leaders of Catalonia said that he had decided to delay the declaration of independence ______ they could have a further negotiation with Spanish government. A．in case B．in order to C．so that D．not until 8．Modern science has found that _______ one is using chopsticks, over 30 joints and over 50 muscles are used, which is a favorable stimulation to the brain. A．since B．although C．unless D．while 9．The young lady rushed into the room _____ she heard the noise. A．right away B．at once C．immediately D．at the moment 10．The sales of houses in our city fell by 40 percent last month, and it will be 48 percent ______ we don’t count low-price houses provided for poor residents. A．as B．unless C．if D．before 11．_______ hip-hop is popular with youngsters, I’m still not accustomed _______ it. A．As, to appreciating B．Although, to appreciate C．Even though, to appreciating D．While, to appreciate 12．Why do many students stick to private tutoring _____ they could easily master such knowledge at school? A．unless B．before C．after D．when 13．—Why do people like pop music? I hate it so much. —______ it is not your style, that doesn’t mean it is bad. A．Only if B．Even though C．Nov that D．In case 14．________，she can help Mother do housework. A．As my sister is a child B．A child as my sister is C．Child as is my sister D．Child as my sister is 15．They decide to have more workers for the project ____ it won’t be delayed.