英语语法专题条件状语从句(讲解+练习,无答案)

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状语从句之条件状语从句:知识点总结+习题 (Word版,无答案)

状语从句之条件状语从句:知识点总结+习题 (Word版,无答案)

状语从句之条件状语从句:知识点总结+习题(Word版,无答案)状语从句——条件状语从句一、条件状语从句的引导词:条件状语从句由if, un le ss( 如果不), as/so long a s( 只要), suppos i ng( 假设), suppose that( 假设), given that( 如果), in case( 万一), on condition that( 如果), provided that(假如)等词引导。

注意:在条件状语从句中,通常用一般现在时表示将来,用一般过去时表示过去将来。

二、真实条件状语从句与非真实条件状语从句:if 既可以引导一个真实条件状语从句又可以引导一个非真实条件状语从句,两者主要在以下三个方面有所不同:⑴意义及谓语动词形式不同:如果该条件纯属假设,谓语动词用虚拟语气;如果是有可能实现的条件,则使用动词通常的陈述形式。

①非真实条件状语从句的谓语动词用动词过去式来表示与现在事实相反或难以实现的愿望,主句则用“would+动词原形”;而真实条件状语从句得到谓语动词用动词的一般现在时表示一般或未来情形下的条件,主句用一般现在时或将来时。

试比较:e.g.: If my husband were a woman, he would understand my feelings a bit better. 如果我丈夫是女人的话,他就会更好的理解我的感情了。

(丈夫不可能是女人)Oil floats if you pour it on water.如果你把油倒在水上,它就能漂浮在上面。

(能实现的事实)②非真实条件状语从句的谓语动词用“had+过去分词”表示与过去的事实相反,主句用“would have done”;真实条件状语从句用一般过去时指过去的事实或用于间接引语中(可表示过去将来的情况),主句用一般现在时或过去将来时。

试比较:e.g.: If I had been a teacher at that time, I would have argued with him.当时我要是老师的话,就和他争辩了。

英语语法专题条件状语从句(讲解+练习,无答案)

英语语法专题条件状语从句(讲解+练习,无答案)

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。

2020年初中英语语法之状语从句(无答案)

2020年初中英语语法之状语从句(无答案)

状语从句1.概念:在句子中作状语的从句叫作状语从句。

状语从句都是由从属连词引导的。

2.分类:状语从句根据其用途可分为时间状语从句、地点状语从句、原因状语从句、目的状语从句、结果状语从句、条件状语从句、让步状语从句、比较状语从句、方式状语从句九种。

3.常见考点:when意为“当……时”、“在……之后”,引导时间状语从句,表示主句的动作和从句的动作同时或先后发生,从句中的动词可用延续性动词,也可用终止性动词。

例:When you are crossing the street, you must be careful.while译为“与……同时,在…….期间”。

while引导的从句中的动词常用延续性动词或表示状态的动词。

例:They rushed in while we were discussing problems.as引导时间状语从句时可以表达“正当,一边……一边,随着”等意思。

①表示某事一发生,另一事随即发生。

例:As the sun rose the fog disappeared.②表示某事发生的过程中另一事发生。

例:I heard their voices as I crossed the hall.③表示两个动作同时发生。

例:He smiled as he passed.before引导的时间状语从句表示主句动作发生在从句的动作之前,反之用after。

例:Did she leave a message before she went?until/till引导时间状语从句,表示“直到”,常可换用,主句的谓动是延续性动词时,主句用肯定形式表这一动作或状态一直延续到until/till所表示的时间为止。

例:You may say here until the rain stops.注意:主句谓动是非延续性动词时,用否定形式表主句的谓语所表示的动作直到until所表示的时间才发生。

构成句式not..until…,有时不用not,而用其他如never,,nothing等表示否定的词。

条件状语从句专项练习

条件状语从句专项练习

条件状语从句专项练习条件状语从句是英语语法中的重要组成部分,它用于表达一个事件或行为在满足某种条件时才会发生。

条件状语从句由一个从属连词引导,并且与主句之间存在逻辑上的因果关系。

在本文档中,我们将专门进行条件状语从句的练习,以便更好地掌握使用它们的技巧。

练习一:选择正确的条件状语从句1. 如果你不努力学习,你挂科的可能性就会(增加/减少)。

2. 他会接受这份工作,(只要/除非)他薪水达到预期。

3. 如果你没有及时寄出申请表,你将无法参加这个项目。

4. 除非他带上护照,否则他无法出国旅行。

5. 我们将允许你加入研究小组,(只要/虽然)你满足所有的条件。

练习二:改写下列句子,使用条件状语从句1. 如果你帮我买些牛奶,我会付钱给你。

2. 除非你及时交作业,否则你会被罚款。

3. 只要你努力学习,你就能通过这次考试。

4. 如果你不去参加这个会议,你不能了解最新的情况。

5. 除非你停止抱怨,否则我将离开。

练习三:根据上下文,填入适当的条件状语从句1. _________(如果/除非)你戴上头盔,我不允许你骑自行车。

2. 他永远不会成功,_________(如果/除非)他停止浪费时间。

3. _________(如果/虽然)他很困,但他还是坚持完成了任务。

4. 你会迷路的,_________(如果/除非)你跟着这张地图走。

5. _________(除非/只要)你照顾好自己,我就不担心你的健康。

练习四:根据提示,完成下列句子1. 如果我明天收到包裹,我会给你打电话。

(对划线部分提问)2. 我的哥哥不会来参加聚会,除非他完成作业。

(改为简单句)3. 如果你努力学习,你就能取得好成绩。

(改为被动语态)4. 我一定会去参加会议,只要我有时间。

(改为否定句)5. 除非他带上护照,否则他无法出国旅行。

(改为感叹句)练习五:根据上下文,完成下列对话A: 我昨天在图书馆里遇到了小明,他告诉我他有个好主意。

B: 是什么主意?A: 如果我们每个人捐献一些钱,我们就能帮助那些需要帮助的人。

山东省泰安市岱岳区新城实验中学中考英语专题复习状语从句(无答案)

山东省泰安市岱岳区新城实验中学中考英语专题复习状语从句(无答案)

透析中考英语语法状语从句考点【状语从句命题】用一个句子(从句)来作另一个句子(主句)的状语,用作状语的句子就叫作状语从句。

作什么样的状语就叫什么类型的状语从句。

例如:条件状语从句就是用一个句子来作条件状语。

1.考查时间状语从句。

2.考查原因状语从句3.考查地点状语从句。

4.考查结果状语从句5.考查条件状语从句。

6.考查让步状语从句。

7.考查伴随状语从句。

8.考查方式状语从句【考点诠释】一、时间状语从句在时间状语从句中,通常要用动词的一般现在时态表示将来时,用一般过去时表示过去将来式。

时间状语从句常用连词有: 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。

1.考查when, while, as引导,表示“当……时候”.【考例】一Mum,____shall we have lunch?——We will have it when your dad__________. [连云港市]A when;returnsB where returns C.where;will return D.when;will return2. before 的用法:before的本意为“在……之前”,根据具体语境还可理解为“还没来得及/还没有……就……,趁着还没……就……,不知不觉就……,……才……”等。

如:【考例】Could you please give me your e-mail address _________you go? [昆明市] A. as soon as B. before C. after D.until2.until 和till 的用法:与肯定式的主句连用,主句谓语必须是延续性动词,till/ until 表示“……直到……”;与否定式的主句连用,且主句谓语是非延缓性动词时,till/ until 表示“直到……才……”。

中考英语复习--if和unless的用法讲解+练习题(无答案)

中考英语复习--if和unless的用法讲解+练习题(无答案)

中考英语复习--if和unless的⽤法讲解+练习题(⽆答案)If 和unless引导的条件状语从句我们⽤if引导的条件状语从句来讨论可能的条件以及该条件成⽴时可能的结果。

⼀. 学习if引导的条件状语从句的⽤法,我们可先从如下的⼝诀⼊⼿:If条件句不⼀般,⼏个要点记⼼间;条件句,放在前,逗号要句中间条件句表可能,主句多⽤将来时;条件句表事实,主句常⽤现在时。

We can walk thereif we can’t find a bus.如果我们找不到公车,也能⾛路去那⾥主句条件状语从句If it rains tomorrow, we will not go to the zoo.如果明天下⾬,我们就不去动物园条件状语从句主句What will you go if you find someone in danger? 如果你发现某⼈有危险,你会怎么做?主句条件状语从句If 条件句有不同的类型,简述如下:1. ⽤if条件句表达客观真理或普通现象If条件句⽤于表达客观真理或普通现象时,主,从句时态均⽤⼀般现在时,如:Eg.If you freeze water, it turns into ice.A fish dies if you take it out of water.2. ⽤if 条件句表⽰将来可能发⽣的事情在表⽰将来可能发⽣的事情的if条件句中,主句⽤⼀般将来时,⽽if从句⽤⼀般现在时表⽰将来的时间,即主将从现Eg.If I like the house, I will buy it. 如果我喜欢这房⼦,我就会把它买下I will tell her if I see her. 如果我见到她,我就会告诉她。

主句中的will也可以⽤情态动词can, may 或might等代替。

如:Eg.If they are friendly,I might invite them to the party. 如果他们很友善,我可能会请他们去参加聚会If we hurry now, we can stop for coffee later. 如果我们现在抓紧时间,就可以稍后去喝咖啡注意:在条件句中,主句部分只能使⽤动词will的⼀般将来时,不能使⽤be going to的结构⼆. Unless 的条件句表⽰在特定条件下,才决定做或不做⼀件事,中⽂⽤的连接词⼀般是“除⾮”和“否则”。

高三语法专题复习二:状语从句导学案设计(无答案)

高三语法专题复习二:状语从句导学案设计(无答案)

语法专题复习二:状语从句学习内容➢状语从句的分类➢状语从句引导词➢状语从句实战题一、状语从句的分类概念:在复合句中,充当状语的从句就是状语从句。

分为九大类:1.时间状语从句Adverbial clause of time2.地点状语从句Adverbial clause of place3.条件状语从句Adverbial clause of condition4.原因状语从句Adverbial clause of reason5.目的状语从句Adverbial clause of purpose6.结果状语从句Adverbial clause of result7.让步状语从句Adverbial clause of concession8.比较状语从句Adverbial clause of contrast9.方式状语从句Adverbial clause of manner二、状语从句的引导词1.时间状语从句引导词when/as(当…的时候), while(当…的时候), before(在…之前),after (在…之后) since (自从…以来)until/ till(直到…时候);not...until (直到…时候才)by the time (在…之前)once (一旦)as soon as, immediately, directly, instantly, the moment, the minute, the second, the instant一…就…hardly…when/before; no sooner…than…; scarcely…when…刚/一…就…the first time(第一次); the second time(第二次);..., the last time (最后一次);every time (每一次), each time(每一次), next time(下一次);…2.地点状语从句WhereWherever3.条件状语从句if,unless (if not );when 在…的情况下as long as…; so long as…只要on (the) condition that…只要only if 只要If only 但愿;用虚拟语气in case…Suppose/Supposing (that)Providing/ Provided that…(可用虚拟语气)Imagine that…On the assumption that…Given that…祈使句/名词短语(相当于if 条件状语从句), + and/or +…(相当于主句)4.原因状语从句because/ as; in thatfor 不能放句首since/ now that 说话者双方都知道的原因seeing that…; 鉴于;考虑到considering that 考虑到;因为when 虽然,然而,可是for fear that…唯恐5.目的状语从句… so that… (从句中要有情态动词can, could, may; might; will; would等) … in order that… (从句中要有情态动词can, could, may; might; will; would等)6.结果状语从句…so…that…结果…such…that…结果…, so that…结果7.让步状语从句although/ though ( as 的替换); whileeven if; even thoughwhether…or…no matter + wh-word (who, what, when, how, where…) (只引导状语从句) wh-word+ ever (名词性、状语从句均可)whereas/while 然而8.比较状语从句as…as…not so…as……the same …as…The + 比较级…; the + 比较级…than……no less …than 同…一样…no more …than…同…不一样9.方式状语从句as 按照as if, as though三、状语从句实战题(一)在空格中填入合适的连词或动词形式1.She hadn’t stayed in the country for weeks _______ a strong earthquake struck it.2.We won’t start the project __________ all the preparations ____________________ (make).3.We ___________________(finish)conducting the survey by the time this semester __________ (end).4.The famous movie star ___________________ (reach) the airport ______________ the fans_______________ (begin) to scream.5.Please let me know ________________ you get the results of the exam.6.You’d better make special marks ___________________ you have difficulty understanding them.7.Why did you choose to go to the theatre by taxi ________________you had such a nice car at hand?8.Tim is in good shape physically _______ he doesn't get much exercise.9.Today, we will begin ________we stopped yesterday so that no point will be left out.10.The scientist does not study nature ________ it is useful to do so. He studies it because he takes pleasure in it.11.By the time children _________ up to three years, they _________________(speak) a little Chinese.12.Bookshops can often host readings and other cultural events ________ you don't feel like reading in them.13.Liquids are like solids ______________ they have a definite volume.14.We hadn’t met for 20 year s, but I recognized her ______________ I saw her.15.I will accept any job _________________ I don’t have to get up early.(二) 单项选择1.—It’s a long time _________I saw you last.—Yes, and what a pity it is now that it will be a long time __________we see each other again.A. before; sinceB. since; whenC. since; beforeD. when; before2. _________ tomorrow, our ship will set out for Macao.A. However the weather is likeB. However is the weather is likeC. Whatever is the weather likeD. Whatever the weather is like3. I’d like to study law at university ______ my cousin prefers geography.A. thoughB. asC. whileD. for4. _______ I really don’t like art, I find his work impressive.A. AsB. SinceC. IfD. While5. Help others whenever you can, _________ you will make the world a nicer place to live in.A. andB. orC. unlessD. but6. Reality is not the way you wish things to be, nor the way they appear to be, ________ the way they actually are.A. asB. orC. butD. and7. You’d better not leave the medicine ________ kids can easily get at it.A. even ifB. whichC. whereD. so that8. __________ unemployment and crime are high; it can be assumed that the latter is due to the former.A. BeforeB. WhereC. UnlessD. Until9. She had just finished her homework ________ her mother asked her to practice playing the piano yesterday.A. whenB. whileC. afterD. since10. It just isn’t fair, ________ I was working as a waiter last month, my friends were lying on the beach.A. wheneverB. thoughC. forD. while11. ---Take a cigarette, please.--- No, thanks. It’s three years ________ I smoked.A. beforeB. sinceC. afterD. when12. --- It cost me 30 yuan to get here.--- Well, it was crazy of you to take a taxi ________ you could come by bus as well.A. unlessB. whenC. ifD. because13. You are certain to live your dream ________ you make great efforts and lay emphasis on improvements inefficiency.A. on condition thatB. as far asC. even thoughD. in case14 I don’t know ________. If he ________, I’ll let you know.A. if Mr. Wang come; comesB. when Mr. Wang will come; will comeC. if Mr. Wang will come; comesD. whether Mr. Wang comes; comes15. _______ the day went on, the weather got worse.A. WithB. SinceC. WhileD. As16. ______ I met him, he was working as a secretary in a big company.A. Since the first timeB. The first timeC. The first time whenD. For the first time17. I have brought my tennis things along in case we _________ time for a game tomorrow.A. shall haveB. haveC. will haveD. are going to have18. She always went swimming when she was young, __________.A. no matter how cold was itB. no matter how cold it wasC. no matter it was coldD. however it was cold19. He was such a hero ________ many young people are inspired to learn from.A. thatB. whenC. whichD. as20. If you put a stone in the way of an ant, it will go around, over, under or on top, without stopping, until it findsa way to get ________ it needs to be.A. whatB. howC. whichD. where21. Peter bought a map as soon as he got to Los Angeles ________ he lost his way there.A. as thoughB. now thatC. even ifD. in case22. Most people have to get to a point where they don't have a choice ________ they will change something.A. sinceB. beforeC. whileD. once23. ________ you can learn to appreciate the challenges in life, you will find inner strength.A. WhenB. WhileC. BeforeD. Unless24. Careful studies have indicated that as many as 50 percent of patients do not take drugs _________ directed.A. howeverB. whenC. soD. as25. We will visit Europe next year ______________ we have enough money.A. lestB. untilC. unlessD. provided26. I’ve already told you that I am going to buy it, ___________.A. however much it costsB. however does it cost muchC. whatever does it costD. whatever much it costs27. I am sure he is up to the job __________ he would give his mind to it.A. if onlyB.in caseC. untilD. unless28. ___________ her faults, she is Arnold’s mother. Don’t be so rude to her.A. WhateverB. WhicheverC. No matter whatD. No matter which29. Why do you want a new job __________you’ve got such a good one already?A. thatB. whereC. whichD. when30. Even though it doesn’t feel like a fairy tale, I still feel like I am living in a cartoon with him every day__________ we can lie down and live a carefree life.A. whereB. whichC. whatD. when。

2018高考英语专题训练之-状语从句(无答案)

2018高考英语专题训练之-状语从句(无答案)

2019高考英语专题训练之专题十连词和状语从句时间状语从句地点状语从句原因状语从句状语从句结果状语从句目的状语从句条件状语从句方式状语从句让步状语从句I、时间状语从句When既可引导一个持续动作,也可引导一个短暂动作,可用于主句和从句动作同时发生或从句动作先于主句动作。

While引导的动作必须是持续的,侧重主句动作和从句动作相对比。

as引导一个持续性动作,多用于主句和从句动作同时发生。

填空John sings he worksthe film ended, the people went back.Please don’t talk so loud others are working .4. when还可用作并列连词,其意义为“那时,这时”,相当于at this/ that time. 常用于下列句式:We were having a meeting when someone broke inWhen还表示原因“既然”。

如:It was foolish of you to make a taxi when you could easily walk there in five minutes.5.while作为并列连词,意为“而,却”,表示对比。

He likes pop music, while I am fond of folk music.二、as soon as, immediately, directly, the moment, the minute, no sooner…than…, hardly/ scarcely…when…, once(一旦。

就。

)表示从句的动作一发生,主句的动作随即发生,常译为“一...就.....”。

从句中一般时态代替将来时态Once you remember it, you’ll never forget it.The moment I heard the voice, I knew father was coming.▲注意:No sooner…than, hardly/ scarcely…when…主句-----过去完成时,从句----一般过去时,当把no sooner和hardly/ scarcely提到句首时,应用倒装语序。

中考英语复习学案--状语从句 (无答案)

中考英语复习学案--状语从句 (无答案)

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。

初中英语语法专题—条件状语从句讲解

初中英语语法专题—条件状语从句讲解

初中英语语法专题—条件状语从句讲解条件状语从句是英语语法中的一种从句,用于表达某种条件下才会发生的情况。

在初中英语研究中,掌握条件状语从句的用法对于正确理解和运用英语句子起着至关重要的作用。

本文将详细讲解条件状语从句的基本结构和常用形式。

基本结构条件状语从句的基本结构为:if/when/unless/so long as/provided that等引导词 + 主语 + 谓语。

其中引导词if是最常用的。

例如:- If it rains, we will stay at home.- When you are hungry, you should eat something.- I won't go unless you invite me.常用形式条件状语从句可以有多种形式,常见的有以下几种:1. 一般现在时如果主句是一般将来时,条件从句常用一般现在时表示将来的条件。

例如:2. 一般过去时如果主句是过去时,条件从句常用一般过去时表示过去的条件。

例如:- If it rained, we stayed at home.3. were to + V原用于表达与现在事实相反的情况,表示假设的内容。

例如:- If I were rich, I would buy a big house.4. should + V原表示建议或者要求。

例如:- If you should have any problems, feel free to ask for help.5. 省略 if在主句前可以省略if,但主句表达的语气必须是祈使句。

例如:- Study hard, and you will succeed.高级用法除了以上的基本结构和常用形式,条件状语从句还有一些高级用法需要注意。

1. 虚拟条件句表示与现在事实相反的假设情况,常用虚拟语气来表示。

例如:- If I won the lottery, I would travel around the world.2. 祈使句当主句为祈使句时,条件状语从句常用完全倒装的形式。

初中英语语法——If引导的条件状语从句(讲解及练习)

初中英语语法——If引导的条件状语从句(讲解及练习)

初中英语――条件状语从句(讲解&练习)Ⅰ条件状语从句的定义Ⅱ条件状语从句的引导词1.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。

If we pay much attention to the earth, we'll have a better world.如果我们多关爱地球,就会拥有一个更美好的世界If it rains tomorrow, what shall we do?如果明天下雨,我们怎么办?注意:if还可以引导虚拟条件句,表示不可实现的条件,从句中多用一般过去时或过去完成时。

What would happen if there were no water ?如果没有水会怎样?2.unless引导的条件状语从句unless的意思是如果不,除非。

可与if...not互换。

You will fail in English unless you work hard.你英语考试会不及格的,除非你更加努力。

3.as /so long as引导的条件状语从句as /so long as意思是“只要”So long as you're happy,i will be happy.只要你高兴,我就高兴。

Ⅲ条件状语从句的种类Ⅳ条件状语从句的时态原则注意:学习" if " 引导的条件状语从句的用法,现在总结一下:if 条件句不一般,几个要点记心间;条件句,放在前, 逗号要放句中间。

条件句表真实,主将从现要遵从;条件句非真实,虚拟语气用到位。

练习Ⅰ.单项选择()1.If you _____ to the party, you’ll have a great time.A. will goB. wentC. goD. going()2. I ____ her the answer if she ____me.A. can tell, will askB. will tell, will askC. would tell, askD. will tell, asks()3. – What are you going to do tomorrow?--We’ll go to the library tomorrow if it ___.A. isn’t rainB. rainC. won’t rainD. doesn’t rain()4. What will you do if you _____ to the old folk’s home?A. goB. wentC. goingD. will go()5.I’ll give the book to him if he ___ here next Sunday.A. will comeB. comesC. is comingD. cameⅡ.用所给词的适当形式填空6..If you ________(feel) tired, you _______________ (have) to have a rest.7. Where _______ he _________(see) the film if he ________________(have) time?8. If there __________(be) fewer trees, there _______________( be) more pollution.9. If Marcia _____________(live) alone, she ___________________( keep) a pet parrot. 11. Lana ________________( buy) a new dress if the old one ____________(be) out of style.12.The twins ______________(fight) if they_______________(argue).13. I ____________(have) a bake sale if I _____________(need) money for education.14. Array Peter_____________( send) meabeautifulsouven ir if he ________________(tour) Spain.15. I ____________(go) to the beach if it________________ ( not rain) this week.17. __________they __________( have) a match if the P.E. teacher _____________(be) busy?18. If she ____________(get) up late, she _____________ ( not catch) the early bus.Ⅲ.翻译下列句子19..如果他到的晚了会发生什么事情?What _______________ if he _____________ late?20. 如果努力学习,你就会取得好成绩。

条件状语从句英语语法详解

条件状语从句英语语法详解

条件状语从句英语语法详解条件状语从句是复合句的一种形式,用来表达某种条件下的结果。

该从句通常由一个条件词引导,如if, unless, as long as等。

在条件状语从句中,如果条件成立,则主句的结果发生;如果条件不成立,则主句的结果不发生。

1. if从句if从句是条件状语从句中最常用的一种形式。

if从句可以表示真实条件或虚拟条件。

1.1 真实条件真实条件是指实际上可能发生的情况。

当if从句表示真实条件时,使用一般现在时态,主句使用一般将来时态。

例如:- If it rains tomorrow, I will bring an umbrella.(如果明天下雨,我会带一把雨伞。

)- If you study hard, you will pass the exam.(如果你努力研究,你会通过考试。

)1.2 虚拟条件虚拟条件是指不太可能或不实际出现的情况。

当if从句表示虚拟条件时,使用虚拟语气(subjunctive mood)来表示。

其中,对于现在或将来的情况,使用过去时态;对于过去的情况,使用过去完成时态。

例如:- If I were you, I would apologize.(如果我是你,我会道歉。

)- If I had studied harder, I would have passed the exam.(如果我当时研究更努力,我就能通过考试了。

)2. unless从句unless从句也是一个常见的条件状语从句形式,意思相当于if...not。

如果unless从句为真,则主句的结果不发生;如果unless 从句为假,则主句的结果发生。

例如:- I won't go to the party unless she invites me.(她不邀请我,我就不去参加派对。

)3. as long as从句as long as从句表示一个条件,只要这个条件满足,主句的结果就会发生。

初中英语语法:条件状语从句解析和练习题(含答案)

初中英语语法:条件状语从句解析和练习题(含答案)

2021年初中英语语法:条件状语从句解析和练习题(含答案)一、定义:条件状语从句就是在复合句中表示主句动作发生条件的状语从句。

在英文中,条件是指某一件事情实现之后(状语从句中的动作),其它事情(主句中的动作)才能发生,通常译作“假如”。

注意:在含有条件状语从句的复合句中,主句为一般将来时,祈使句或有情态动词时,从句用一般现在时,即主将从现原则。

二、引导词:②常用引导词:if (如果), unless(“如果不”“除非”),as long as(“如果”“只要”),②特殊引导词: in case(万一),but for(如果不),supposing(假设),on condition that(条件是),三、位置:可放在句首或句尾,放在句首时常用逗号与主句隔开。

四、详细解说1.if引导的条件状语从句if引导的条件状语从句在复合句中表示主句动作发生的条件,是引导条件状语从句最常用的连词。

if意思是“如果,假如”,表示在某种条件下某事很可能发生。

如:If you get scared easily, do not watch it. 如果你很容易被吓坏,别看了。

If it does not rain tomorrow, we will go hiking. 如果明天不下雨,我们就去远足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。

You will get good grades if you study hard. 如果你努力学习,就会取得好成绩注意: if引导的条件状语从句可以位于主句之前,也可位于主句之后。

如果从句在前,从句与主句之间要用逗号隔开。

(1)在引导的条件状语从句中,主句中的动词常用一般将来时,从句中的动词用一般现在时,即“主将从现”。

如:If it doesn’t rain, I will go for a picnic. 如果不下雨,我就去野餐。

中考英语专项条件状语从句

中考英语专项条件状语从句

英语中考专项条件状语从句第一:条件状语是在句子中用来表达某种条件或前提的短语或从句。

它们通常用来描述一个事件或情况发生的条件。

条件状语可以使用各种不同的词或短语,以下是一些常见的条件状语及其定义:1. If(如果):表示假设条件,并指明某事可能发生的条件。

例句:If it rains, we will stay at home.(如果下雨,我们将待在家里。

)2. Unless(除非):表示除非某个特定条件成立,否则某事将发生。

例句:I won't go out unless it stops raining.(除非停止下雨,否则我不会出去。

)3. As long as(只要):表示只要某个条件得到满足,就会发生某事。

例句:You can stay here as long as you keep quiet.(只要保持安静,你可以在这里待着。

)注意:紧跟着引导词的是从句,另一部分是主句。

1)引导词if:(如果当然,我可以给您提供三个使用引导词"unless"的例子,并对每个例子进行详细说明:2)希望以上解释对您有所帮助!如果您还有其他问题,请随时提问。

)好的,以下是三个使用引导词"if"的例子,并对每个例子进行详细说明:1. If I work hard, I will succeed.这个句子中的主句是一般将来时态(will succeed),从句是一般现在时态(I work hard)。

条件状语"If I work hard"表示假设或前提,指出只有当我努力工作时,才会取得成功。

主句表达了一个结果,即未来的成功。

因此,这个句子传达了如果我努力工作,我将会成功的意思。

2. If it rains, we can't go for a picnic.这个句子中的主句是含有情态动词的一般现在时态(can't go),从句是一般现在时态(it rains)。

(完整版)if引导的条件状语从句精讲与专题练习(可编辑修改word版)

(完整版)if引导的条件状语从句精讲与专题练习(可编辑修改word版)

初中英语――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: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。

I would have arrived much earlier if I had not been caught in the traffic.要不是交通堵塞,我本会来得早一些。

另外你还要注意if 条件句的时态搭配1.if 从句用一般现在时,主句用一般将来时If he runs he’ll get there in time. 如果他用跑的,他就会及时赶到那儿。

The cat will scratch you if you pull her tail. 如果你拉猫的尾巴,它就会抓你。

2..if 从句用一般现在时,主句用may/might/canIf the fog gets thicker the plane may/might be diverted. 如果雾在大一些,飞机可能就会改在别的机场降落。

If it stops snowing we can go out. 如果雪停了,我们就可以出去。

英语条件状语从句讲解和练习

英语条件状语从句讲解和练习

条件状语从句引导词:if(如果) ,unless(除非), in case(以防)时态:主将从现(可能会发生的事情)主现从现(肯定会发生/祈使句)1.if引导的条件状语从句,可位于前面或后面,但是如果放在后面,主从句用逗号隔开。

e.g.I will call you if I come. 或If I come, I will come.(主将从现)如果明天不下雨,我们将去野炊。

_____________________________________________If you drop the vase,it falls into pieces.(主现从现) 如果你摔花瓶的话,它就会变成碎片。

如果你把水冷却的话,它就会变成冰。

_______________________________________________If you have any problems,please call me.如果你知道答案,请举手。

_______________________________________________2.unless引导的条件状语从句,位置和if引导的一样。

Unless=if...notE.g. If you don't study hard,you will not pass the exam.=Unless you study hard,you will not pass the exam.除非你努力工作,否则你不会得到高工资。

(high salary)。

___________________________________________________________________________________________________________________3.条件状语从句和祈使句之间的转换。

结构:祈使句,and/or +从句(and:那么or否则)1.)Work hard,and you will get a high salary.=If you work hard, you will get a high salary.2.)Work hard,or you will not get a high salary.=Unless you work hard, you will not get a high salary.=If you don't work hard, you will not get a high salary.练习一.在正确的答案下划一条线。

完整版)条件状语从句讲解

完整版)条件状语从句讲解

完整版)条件状语从句讲解在你保密的条件下,我可以告诉你真相。

4、provided/providing (that)。

只要,在……条件下___.只要你明天前归还我的车,你可以借用它。

Providing that the weather is good。

we will go for a ic.只要天气好,我们就去野餐。

5、as/so long as。

只要,在……条件下You can stay here as long as you ___ yourself.只要你表现得好,你可以在这里待着。

So long as you finish your work。

you can leave early.只要你完成工作,你可以早点离开。

6、___。

以防万一,如果___ ___ it rains.带把伞,以防下雨。

I’ll leave my phone number with you in case you need any help.我会留下我的电话号码,以防你需要帮助。

我可以告诉你真相,但必须保守秘密。

如果你不远离河岸,就可以下水游泳。

假如下雨,我们还要继续运动会吗?如果出了问题,你会怎么办?如果我们提供更优惠的条件,他就会签署合同。

如果我们提前征求他的意见,他不会在会上反对我们。

if、unless、on n (that)、supposing、provided等词引导的条件状语从句,结构清晰明了。

但有些句子没有条件关系的连词,但仍隐含条件关系,常用词如but for、without引出介词结构表示条件,条件常常是虚拟的或与事实相反的假设。

如果没有下雨,我们的旅行会很愉快。

如果没有你的帮助,我们无法及时完成任务。

经典句子:如果明天不下雨,我们会去动物园。

如果你打开门,我就进来了。

条件状语从句是用来表达“在某种条件下会发生什么”的句子,通常使用if、incase、on等词语引导。

例如,如果下雨,我就会呆在家里。

这句话中,条件状语从句是“如果下雨”,主句是“我就会呆在家里”。

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A. IfB. UnlessC. WhetherD. When
5. I won’t get to the party on time _____ I catch the first train tomorrow morning.
A. IfB. UnlessC. WhetherD. When
6. —Shall we go on a picnic this weekend? —Good idea! Unless it _____.
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。
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
2. We will go camping if it _____ tomorrow.
A. Won’t rainB. didn’t rainC. doesn’t rainD. isn’t raining
3. I’m waiting for my friend. If he _____, I _____ swimming alone.
Take enough money with you, _______ _______ _______ buy the dictionary.
3. If there is no air, none of us can live.
None of us can live _______ _______.
10. You will get a toothache ________ you do clean your teeth regularly.
(二)用所给单词的适当形式填空
1. If he ________ (get) a low mark in the test, he ________ (study) harder.
5、as/so long as只要
You may use my dictionary as/so long as you don’t keep it too long.只要使用时间不太长,你可以用我的词典。
You can take my car as/so long as you drive carefully.你可以用我的汽车,只要你小心点儿开。
2. If you ________ (swim) every day this summer, you ________ (be) very healthy.
3. If he ________ (not hurry), he ________ (not see) the beginning of the match.
8. Nobody can learn maths well _____ he works hard on it.
A ifB unlessC thoughtD however
9. If fish _____ away from water, they _____ die.
A are taking, won’tB are taken, willC are being taken, willD take, won’t
练习
(一)if not与unless相互替换
1. He will not go unless I come with her.
_____________________________________________
2. If you don’t finish it, I will be angry.
4. You can’t go out unless you ________ (finish) your homework.
5. Unless I save my money carefully, I ________ (not be) able to buy a football.
6. If it ________ (not rain) tomorrow, we ________ (go) to the park.
_____________________________________________
3. Unless I am mistaken, I’ve seen that man before.
_____________________________________________
4. You won’t get a good job, unless you work hard.
unless = if not
You’ll be late if you don’t hurry. = You’ll be late unless you hurry.
I can’t catch the train if I don’t get up early. = I can’t catch the train unless I get up early.
10. The man ________ (set off) if he ________ (buy) the air ticket.
(三)单项填空
1. If I _____ his phone number, I will tell you.
A. findB. foundC. will findD. have found
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.
A. rainsB. doesn’t rainC. rainD. won’t rain
7. —Can I change the jacket for another one _____ it doesn’t fit me well? —Of course.
A. unlessB. ifC. thatD. though
练习
(一)用if或unless填空
1. ________ he wants to see me, you can tell him to wait.
2. ________ it snows tomorrow, we’ll have a day or two off.
3. We won’t go to his party ________ he invites us.
注意:
1.要点齐全,适当发挥;
2.从思维导图Sayings部分,选择恰当的格合理利用在短文中;
3.词数:100词左右;
【答案】例文
Travelling is one of the best ways for learning. You may have read or heard about something, but you can never get an exact picture of it until you see it yourself. Seeing is believing. If you are a careful observer, you can learn much during your travel about the geography, biology, and history of the places you visit. You can also create great memories for your lifetime. Furthermore, while travelling, you can meet more people and make more friends. No matter how well educated you are, there is always a lot for you to learn through travelling.
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.
7. I won’t buy that backpack ________ it cosห้องสมุดไป่ตู้s less than $20
8. ________ I’m tired; I’ll have a rest for tea.
9. You won’t get paid for time off ________ you have a doctor’s note.
7. If he ________ (return) to the school, I ________ (let) you know.
8. He ________ smoke unless he ________ (have) enough money.
9. They can remember it better if someone ________ (give) them some advice about it.
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