第三条件状语从句

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初中英语条件状语从句知识点总结

初中英语条件状语从句知识点总结

初中英语条件状语从句知识点总结
条件状语从句是英语中常见的一种从句类型,用来表示一个条件或假设。

以下是初中英语中关于条件状语从句的知识点总结:
1. 引导条件状语从句的连词有:if,unless,as long as,
provided/providing (that),suppose/supposing (that),on
condition that等等。

2.当主句的谓语动词是一般将来时,条件状语从句可以使用一般现在
时表示将来情况。

3.如果条件状语从句前面有逗号,通常表示条件状语从句位于句首,
这时主句与条件状语从句之间可以互换位置。

4. 有些情况下,条件状语从句可以省略if。

例如:
- 在含有情态动词的主句中,后面的条件状语从句可以省略if,如:You can go if you want. (可以省略if)
- 在含有was/were to或had的主句中,后面的条件状语从句可以省
略if,如:If I were you, I would study harder. (可以省略if)
5. 当条件状语从句的主语与主句的主语一致时,可将条件状语从句
转化为省略式,如:If it rains, we will stay at home. (如果下雨,
我们将呆在家里)可以转化为:Raining, we will stay at home. (下雨
的话,我们将呆在家里)
需要注意的是,以上总结的知识点并不是绝对适用于所有情况,具体
用法还要根据上下文语境来确定。

在学习中,可以通过大量的阅读和练习
来加深对条件状语从句的理解和运用。

2023年牛津译林版英语中考复习之状语从句以及句子成分讲义(1)

2023年牛津译林版英语中考复习之状语从句以及句子成分讲义(1)

中考复习之状语从句以及句子成分状语从句语法要点在句子中起状语作用的从句叫做状语从句(也称副词性从句),它相当子副词或副词短语,修饰主句的动词、形容词、副词等。

状语从句一般可以分为时间状语从句、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、比较状语从句等。

一、时间状语从句在句子中起时间状语作用的从句被称之为时间状语从句。

时间状语从句可以放在句首、句中和句尾。

用于引导时间状语从句的连词主要有when,while,as,as soon as,before, after,since,once,till,until,whenever等。

I studied English when (while,as) I was young.我小时候就开始学英语。

I have learned many things since I left my hometown.离开家乡后,我学到了很多东西。

He wants to become famous after he publishes his works.他希望他的作品出版后能成名。

He didn't come into the room until I came back.直到我回来,他才进屋。

二、地点状语从句在句子中起地点状语作用的从句被称之为地点状语从句。

地点状语从句可以放在句首和句尾。

用于引导地点状语从句的连接词有where,wherever等。

Where there is a will,there is a way.有志者事竟成。

I will follow you wherever (anywhere,no matter where) you go.你到哪儿,我就跟到哪儿。

Wherever you go, you must remember that you are a Chinese.无论你到哪里,你都得记住你是一个中国人。

第三条件状语从句

第三条件状语从句

*注意:3. 主句或从句中的谓语动词构成否定式的时候, 应分别在主句中的would的后面或if从句中的had 的 后面加上not. had not done would not have done If sb. + _____________ , sb. ___________ ___________ + third form of the verb. 如果昨天晚上没有去看电影的话,你就完成了那份报告了。 If you had not gone to the cinema last night, you would have finished the report. 如果你告诉过我, 我就不会浪费那么多时间。 If you had told me that, I would not have wasted so much time. *注意:4. if 有时可以省略,但if后面部分需改为倒装句语序. Had you told me that, I would not have wasted so much time.
(二). 选择正确的答案: D 1. If you _____ home last night, you would have watched the exciting football match. A. stayed B. was staying C. would stay D. had stayed A 2. If you ______ so careless, you wouldn’t have broken the laptop computer. • hadn’t been B. weren’t C. isn’t D. wouldn’t be C 3. ______ you helped me, I wouldn’t have made so much progress in my work. • Didn’t B. Wouldn’t C. Hadn’t D. Couldn’t

条件状语从句英语语法大全

条件状语从句英语语法大全

条件状语从句英语语法大全条件状语从句条件状语从句是由引导词if或unless引导的从句。

例如:1.如果明天不下雨,我们就去远足。

2.如果你努力研究,就会取得好成绩。

3.除非他也去,否则我不会去参加聚会。

4.如果你不马上走,你将会迟到。

(如果你不走,你会迟到。

)在英语中,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”。

需要注意的是,在含有条件状语从句的复合句中,表示将来时态时,主句要用一般将来时态,从句要用一般现在时、祈使句或情态动词,即主将从现原则。

主将从现并不是指将来时,而是表示将来的含义,与if后的从句相呼应。

条件状语从句类型if是条件状语从句最常用的连词,表示在某种条件下某事很可能发生。

例如:1.如果你请他帮忙,他会帮你的。

2.如果你考试不及格,你会让他失望。

if引导的条件状语从句既可以将从句放前面,也可以将从句放后面。

例如:“如果天下雨,我们就不玩了”可以转化为“We will。

playing if it rains.”此外,if从句还可以表示不可实现的条件或根本不存在的条件,即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。

例如:表示可能实现的条件,主句用一般将来时,从句用一般现在时。

例如:If it rains tomorrow。

we will stay at home。

如果明天下雨,我们会待在家里。

非真实条件句则表示假设的情况,分为虚拟条件句和虚拟结果句。

虚拟条件句表示与现实相反的情况,主句用would/could/might+动词原形,从句用过去时或过去完成时。

例如:If I had more time。

I would travel around the world。

如果我有更多时间,我会周游世界。

虚拟结果句则表示与现实相反的结果,主句用过去时,从句用would/could/might+动词原形。

例如:If I had studied harder。

条件状语从句的用法

条件状语从句的用法

条件状语从句的用法条件状语从句是复合句中的一种,用来表示一个条件,通常由一个从属连词引导,如"if"(如果)、"unless"(除非)、"provided that"(只要)、"as long as"(只要)、"in case"(万一)等。

条件状语从句描述了一个事件或情况,其发生取决于主句中的某个条件。

以下是条件状语从句的一些常见用法和示例:1. 表示真实条件(现实条件):这种条件状语从句表示一个可能发生的情况。

- If it rains, we will stay at home.(如果下雨,我们会呆在家里。

)- Unless you study, you won't pass the exam.(除非你学习,否则你不会通过考试。

)2. 表示虚拟条件(非真实条件):这种条件状语从句描述一个可能不会发生的情况,通常使用虚拟语气。

- If I were rich, I would travel the world.(如果我有钱,我就会环游世界。

)- If I had known, I would have come earlier.(如果我早知道,我会早点来。

)3. 表示习惯性条件:使用"if"或"when"来表示习惯性的情况。

- If he gets angry, he slams the door.(每当他生气时,他就砰地关上门。

)4. 表示目的条件:使用"so that"或"in order that"来表示某事的目的。

- I study hard so that I can get good grades.(我努力学习,以便取得好成绩。

)5. 表示让步条件:使用"even if"或"though"来表示尽管某种条件存在,但仍然会发生某事。

9大状语从句的引导词

9大状语从句的引导词

九大状语从句的引导词时间状语从句:when(当…..时候), while(当….时候) ,as(当..时候,一边), after(在….之后), before(在…..之前), since(自从), ever since(自从)till/until(直到),not….until(直到..才),as soon as(一...就),whenever(不管什么时候),every time(每次),each time(每次)next time(下次),the first time(第一次)any time(任何) the moment(一...就...)by the time(到...), directly(一..就...), immediately(一...就..), instantly(一...就..), as long as(长达), hardly/scarcely… when….(一..就..)once(一..就..)no sooner… than….(一...就..)地点状语从句: where, wherever=no matter where(无论哪里)原因状语从句:because(因为), as(因为), since(自..以来), for(因为),for the reason that(因为),considering that, due to the fact that, owing to the fact that, in that(因为), seeing that(因为),considering that/since (既然)等条件状语从句: if(如果), unless(除非), as(so) long as(只要),in case(万一) on condition that(条件是) supposing(假设),provided that(如果) ,as far as /so far as(就…而言),even though, even if (即使), providing(that),方式状语从句:as(正如), just as(就好像,正如), as if(好像), as though(好像)让步状语从句: although(尽管), though(尽管), even if(即使), even though(即使), as, whether…or….(无论....),no matter what /when/how(无论什么,何时,怎样),now that(既然), despite(尽管),in spite of目的状语从句:that, so that(如此...以此于), in order that(为了), lest(唯恐)in case(唯恐),结果状语从句: so that, so….that, such…that(如此…….以至于)比较状语从句:as….as(和...一样), not so…..as(not as…..as)(不如...), more…than(多于)less….than, the+比较级…. ,The+比较级…..1994-2008高考英语真题状语从句总汇1. — How long has this bookshop been in business? ____________ 1982. ( 94 )A. AfterB. InC. FromD. Since2. Mother was worried because little Alice was ill, especially ______Father was away in France. ( 94 )A. asB. thatC. duringD. if3. If we work with a strong will, we can overcome any difficulty, __________ great it is. ( 95 )A. whatB. howC. howeverD. whatever4. After the war, a new school building was put up _____________ there had once been a theatre. ( 97 )A. thatB. whereC. whichD. when5. — I am going to the post office. _______you’re there, can you get me some stamps? ( 99 )A. AsB. WhileC. BecauseD. If6. You should make it a rule to leave things _____________ you can find them again. ( 99 )A. whenB. whereC. thenD. there7. ____________ you’ve got the chance, you might as well make full use of it. ( 99 )A. Now thatB. AfterC. AlthoughD. As soon as8. We’ll have to finish the job, _____________. ( 99 )A. long it takes howeverB. it takes however longC. long however it takesD. however long it takes9. Someone called me up in the middle of the night, but they hung up ____________ I could answer the phone. ( 00 ) A. as B. since C. until D. before10. The WTO cannot live up to its name _____________ it does not include a country that is home to onefifth of mankind. ( 00 )A. as long asB. whileC. ifD. even though11. The men will have to wait all day ____________ the doctor works faster. ( 01春季)A. ifB. unlessC. whetherD. that12. — Did you remember to give Mary the money you owed her? — Yes, I gave it to her _____ I saw her.( 01春季)A. whileB. the momentC. suddenlyD. once13. Americans eat _____________ vegetables per person today as they did in 1910. (02上海春季)A. more than twiceB. as twice as manyC. twice as many asD. more than twice as many14. — How far apart do they live? _____I know, they live in the same neighbourhood. ( 03上海)A. As long asB. As well asC. As far asD. As often as15. A good storyteller must be able to hold his listeners’ curiosity ______ he reaches the end of the story.A. whenB. unlessC. afterD. until ( 03上海)16. Generally speaking, ____________ according to the directions, the drug has no side effect. ( 03上海)A. when takingB. when takenC. when to takeD. when to be taken17. —Dad, I’ve finished my assignment.—Good, and _____ you play or watch TV, you mustn’t disturb me. ( 03上海)A. wheneverB. whetherC. whateverD. no matter18. — Was his father very strict with him when he was at school?— Yes. He has never praised him _______ he became one of the top students in his grade. (03 北京春季)A. afterB. unlessC. untilD. when19. He made a mistake, but then he corrected the situation ____________ it got worse. (03 北京)A. untilB. whenC. beforeD. as20. _____________ I know the money is safe, I shall not worry about it. (03 北京)A. Even thoughB. UnlessC. WhileD. As long as21. Scientists say it may be five or six years ________ it is possible to test this medicine on human patients.A. sinceB. afterC. beforeD. when ( 04 福建)22. You should try to get a good night’s sleep __________ much work you have to do . ( 04 湖北)A. howeverB. no matterC. althoughD. whatever23. It was evening ________ we reached the little town of Winchester .A. thatB. untilC. sinceD. before24. _____ modeling business is by no means easy to get into, the good model will always be in demand.A. WhileB. SinceC. AsD. If( 04 浙江)25. We were swimming in the lake _______ suddenly the storm started. ( 04 北京春季)A. whenB. whileC. untilD. before26. _______ I can see, there is only one possible way to keep away from the danger. ( 04 北京春季)A. As long asB. As far asC. Just asD. Even if27. We were told that we should follow the main road ________ we reached the central railway station .( 04 辽宁) A. whenever B. until C. while D. wherever28. _____ you call me to say you' re not coming, I'll see you at the theatre. ( 04 四川)A. ThoughB. WhetherC. UntilD. Unless29. You can eat food free in my restaurant ________ you like. ( 04 重庆)A. wheneverB. whereverC. whateverD. however30. _____________ I accept that he is not perfect, I do actually like the person. ( 04 江苏)A. WhileB. SinceC. BeforeD. Unless31. Several weeks had gone by ______I realized the painting, was missing. ( 04 )A. asB. beforeC. sinceD. when32. Jasmine was holidaying with her family in a wildlife park _____ she was bitten on the leg by al lion.( 04 上海) A. when B. while C. since D. once33. ________, I have to put it away and focus my attention on study this week. ( 04上海春季)A. However the story is amusing B No matter amusing the story isC. However amusing the story isD. No matter how the story is amusing34. It is almost five years we saw each other last time.A. beforeB. sinceC. afterD. when35. What a table ! I’ve never seen such a thing before .It is it is long. ( 05 湖北)A. half not as wide asB. wide not as half asC. not half as wide asD. as wide as not half36. Simon thought his computer was broken his little brother pointed out that he had forgotten to turn it on. ( 05 北京春季) A. until B. unless C. after D. because37. I’d like to arrive 20 minutes early _______ I can have time for a cup of tea. ( 05 北京)A. as soon asB. as a resultC. in caseD. so that38. It wasn’t until nearly a month later I received the manager’s reply. ( 05河南、河北)A. sinceB. whenC. asD. that39. Unlike watching TV, reading is a highly active process (过程)________ it requires attention as well asmemory and imagination. (05 江苏)A. untilB. butC. unlessD. for40. The old tower must be saved, _____________ the cost. ( 05 浙江)A. howeverB. whateverC. whicheverD. wherever41. You must keep on working in the evening ______ you are sure you can finish the task in time. ( 05 安徽)A. asB. ifC. whenD. unless42. That was really a splendid evening. It' s years _______ I enjoyed myself so much. ( 05 安徽)A. whenB. thatC. beforeD. since43. John is the tallest boy in the class, ___________ according to himself. ( 05 安徽)A. five foot eight as tall asB. as tall as five foot eightC. as five foot eight tall asD. as tall five foot eight as44. —Did Jack come back early last night?—Yes. I t was not yet eight o’clock he arrived home. ( 05 福建)A. beforeB. whenC. thatD. until45. Allow children the space to voice their opinions, __________ they are different from your own. ( 05 湖南) A. until B. even if C. unless D. as though46. The more I think about him, the more reasons I find for loving him ___ I did. ( 05 湖南)A. as much asB. as long asC. as soon asD. as far as47. you’ve tried it. you can’t imagine how pleasant it is. (06北京)A. UnlessB. BecauseC. AlthoughD. When48. --- How long do you think it will be _________ China sends a manned spaceship to the moon?--- Perhaps two or three years. (06福建)A. whenB. untilC. thatD. before49. Jenny was very sad over the loss of the photos she had shot at Canada, this was a memory she especially treasured. (06广东)A. asB. ifC. whenD. where50. "You can't have this football back you promise not to kick it at my cat again," the old man said firmly. (06广东) A. because B. since C. when D. until51. I had just stepped out of the bathroom and was busily drying myself with a towel ____ I heard the steps. (06湖南) A. while B. when C. since D. after52. _________ environmental damage is done, it takes many years for the ecosystem (生态系统) to recover. (06江苏) A. Even if B. If only C. While D. Once53. He was about halfway through his meal a familiar voice came to his ears. (06辽宁)A. whyB. whereC. whenD. while54. he has limited technical knowledge, the old worker has a lot of experience. (06全国I )A. SinceB. UnlessC. AsD. Although55. We’re just trying to teach a point ____ both sides will sit down together and talk. (06 山东)A. whereB. thatC. whenD. which56. How can you expect to learn anything ____ you never listen? (06山东)A. in caseB. even ifC. unlessD. when57. His plan was such a good one _________we all agreed to accept it. (06 陕西)A. soB. andC. thatD. as58. This is a very interesting book. I’ll buy it, __________. (06 陕西)A. how much may it costB. no matter how it may costC. however much it may costD. how may it cost59. My parents were quarrelling about me ____ I could not quite tell why. (06上海)A. sinceB. thoughC. ifD. until60. --- Mom, what did your doctor say? --- He advised me to live the air is fresher. (06四川)A. in whereB. in whichC. the place whereD. where61. --- Why didn’t you tell him about the meeting?--- He rushed out of the room I could say a word. (06四川)A. beforeB. untilC. whenD. after62. The cost of living in Glasgow is among the lowest in Britain, the quality of life is probably one of thehighest. (06天津) A. since B. when C. as D. while63. If you are traveling the customs are really foreign to your own, please do as the Romans do. (06天津) A. in which B. what C. when D. where64. In time of serious accidents,_________ we know some basic things about first aid, we can save lives.(06重庆) A. whether B. until C. if D. unless65. ____ most of the earth’s surface is covered by water, fresh water is very rare and precious. (06上海春季)A. AsB. OnceC. IfD. Although66 .He was told that it would be at least three more months he could recover and return work. 2007江西A. whenB. beforeC. sinceD. that67. The field research will take Joan and Paul about five months; it will be a long time _____ we meet themagain.2007安徽 A. after B. before C. since D. when68 In my opinion, life in the twenty-first century is much easier than ________.2007安徽A. that used to beB. it is used toC. it was used toD. it used to be69. Most birds find it safe to sleep in the trees, but ________ they have eggs or young chicks, they don’t use a nest.2007湖南 A. why B. how C. unless D. where70. Pop music is such an important part of society ______ it has even influenced our language. 2007上海A. asB. thatC. whichD. where71. Many of them turned a deaf ear to his advice, _______ they knew it to be valuable 2007浙江.A. as ifB. now thatC. even thoughD. so that72. My parents live in a small village. They always keep candles in the house _____ there is a power out.A. ifB. unlessC. in caseD. so that 2007重庆73. I won’t call you, ________ something unexpected happens. 2007 海南A. unlessB. whetherC. becauseD. while74.________I really don’t like art, I find his work impressive. 2007山东A.As B.Since C.If D.While75. Leave your key with a neighbor ___ you lock yourself out one day2007北京A. ever sinceB. even ifC. soon afterD. in case76. We had to wait half an hour ______ we had already booked a table (2007辽宁.)A. sinceB. althoughC. untilD. before77. Small sailboats can easily turn over in the water ______ they are not managed carefully.A. thoughB. beforeC. untilD. if 2007上海78. Having checked the doors were closed , and _________ all the lights were off, the boy opened the door to hisbedroom. 2007湖南A. whyB. thatC. whenD. where79.---Where’s that report?---I brought it to you ____you were in Mr. Black’s office yesterday. 2007北京A. ifB. whenC. becauseD. before80___ he had not hurt his leg, John would have won the race. 2007 国2A. IfB. SinceC. ThoughD. When81. All people, they are old or young, rich or poor, have been trying their best to help those in need sincethe disaster. (2008重庆)A. even ifB. whetherC. no matterD. however82. You'd better not leave the medicine ______ kids can get at it. (2008山东)A. even ifB. whichC. whereD. so that83. I used to love that film ______ I was a child, but I don't feel it that way any more. (2008辽宁卷)A. onceB. whenC. sinceD. although84. Later in this chapter cases will be introduced to readers __ consumer complaints have resulted in changes inthe law. (2008江西卷) A. where B. when C. who D. which85. -----Have you got any particular plans for the coming holiday?----- Yes, _______, I’m going to visit some homes for the old in the city. (2008安徽卷)A. If everB. If busyC. If anythingD. If possible。

条件状语从句引文-概述说明以及解释

条件状语从句引文-概述说明以及解释

条件状语从句引文-概述说明以及解释1.引言1.1 概述条件状语从句是英语语法中重要的一部分,它在句子中起着连接和修饰的作用。

条件状语从句通常用来表示某种条件的前提或假设,它与主句之间存在一种因果或条件关系。

在英语写作中,使用条件状语从句可以增强句子的复杂性和表达的准确性,使句子更加丰富多变。

条件状语从句的基本结构由一个if引导的从句构成,这个从句中的谓语动词通常使用一般现在时态。

例如,如果明天下雨,我就会呆在家里。

在这个例句中,“如果明天下雨”是一个条件状语从句,它描述了下雨的情况下我会呆在家里。

条件状语从句在句子中有多种常见的用法和语法规则。

例如,条件状语从句可以在主句之前或之后出现,或者嵌套在主句中的某个位置。

此外,条件状语从句还可以使用虚拟语气来表达与现实情况相反的假设或愿望。

这些语法规则和用法都需要我们在写作中灵活运用。

总的来说,条件状语从句在英语写作中具有相当重要的地位和作用。

它不仅可以增加句子的变化和多样性,还可以清晰地表达出复杂的条件关系。

因此,对于掌握条件状语从句的定义和用法,对于提升写作水平和表达能力都具有重要的意义。

接下来的章节中,我们将更加详细地探讨条件状语从句的意义、作用以及实际应用场景,以期对读者有所帮助。

1.2文章结构2.1 文章结构本文的文章结构主要由引言、正文和结论三部分组成。

引言部分介绍了条件状语从句的概念和作用。

首先,我们将解释条件状语从句的定义和基本结构,以便读者能够理解它的基本特点。

其次,我们将介绍条件状语从句的常见用法和语法规则,以便读者能够灵活运用它们在写作中。

正文部分将进一步探讨条件状语从句的意义和作用。

我们将阐述条件状语从句在句子中的作用和意义,说明它们如何影响句子的语义和表达方式。

同时,我们将通过举例说明条件状语从句的实际应用场景,帮助读者更好地理解和运用它们。

结论部分将总结条件状语从句的重要性和用途。

我们将对条件状语从句的重要性进行总结,并强调它们在写作中的必要性。

条件状语从句讲解

条件状语从句讲解

条件状语从句讲解条件状语从句是英语中常见的一个从句类型,用于表达某个条件下的结果。

学好条件状语从句对于掌握英语语法和提高阅读、写作能力具有重要意义。

本文将从定义、结构、用法以及常见的连接词等方面详细介绍条件状语从句。

一、定义条件状语从句是一个由if或其他连接词引导的从句,用于表示一个条件假设,即给定条件下可能发生的结果。

条件状语从句常常位于主句之前,且主句和从句之间用逗号分隔。

二、结构条件状语从句的基本结构是“if + 从句”,其中从句的谓语动词多用一般现在时表示将来可能发生的情况。

例如:1. If it rains tomorrow, we will stay at home.2. If I have enough money, I will buy a new car.除了if外,还可以使用其他连接词引导条件状语从句,如:unless (除非)、as long as(只要)、in case(万一)等。

例如:1. Unless you work hard, you won't pass the exam.2. You can go out as long as you finish your homework.3. Take an umbrella with you in case it rains.三、用法条件状语从句的主要用法有以下几种:1. 表达真实条件:表示实际存在的条件,并且结果可能发生。

例如:If you study hard, you will pass the exam.2. 表示假设条件:表示一种假设或可能发生的情况。

例如:If I were you, I would apologize to her.3. 表示命令、建议或要求:用于表达命令、建议或要求的条件。

例如:If you see him, tell him to call me.4. 表示不可能或不真实的条件:用于表示不可能或不真实的情况下的结果。

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。

9大从句类型 记忆

9大从句类型 记忆

9大从句类型记忆从句是英语语法中一个重要的部分,它们使得句子更加丰富和复杂。

一、时间状语从句常用引导词:when(在…时),as(当…时),while(在…期间),as soon as(一……就……),before (在…之前),after(在...之后),since(自从...以来),not...until(直到…才)until/till(直到…时)等特殊引导词:the minute,the moment,the second,every time,the day,the instant(瞬间,顷刻),immediately,directly(不久,立即),no sooner…than(一...就...),hardly…when(刚一...就...),scarcely…when(刚...就.../一...就...),as soon as(一…就…)。

时间状语从句的引导词所表示的意思不尽相同,要注意把握不同引导词所表示的不同时间关系,以及它在具体句子中对应的时态、语态等问题。

注意:as(在……时候,因为),since(自从,因为),它们可以引导时间从句,并强调主句和从句的动作同事发生。

并且while有时还可以表示对比。

例如:(1)While my mother was reading the newspaper,I was watching TV.(read是延续性的动词,read和watch同事发生)I like playing football while you like playing basketball.我喜欢踢足球,而你喜欢打篮球。

(对比)(2)when(当……的时候),引导的从句的谓语动词可以是延续性动词,也可以是瞬间动词。

从句动作可与主语动作同事发生,也可在其后发生。

I was reading a book when she came into my room.(come是瞬间动词,只能用when引导,不能用while)I often missed my home when(while)I lived in NewYork.(live是延续性动词,when可用while代替)(3)when和while的区别还在于: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。

条件状语从句知识点总结

条件状语从句知识点总结

条件状语从句知识点总结一、条件状语从句条件状语从句是在主句和从句之间条件关系的从句,一般用来表示一定条件下事物发生的可能性,常用虚拟语气,表示与现实相反的假设。

1、以if, unless, supposing, providing, as long as, only if等引导的条件状语从句,它的谓语动词多用虚拟语气:(1)主句用一般现在时,从句谓语动词用“should/were to+动词原形”的结构;(2)主句用一般过去时,从句谓语动词用“should/would+动词原形”的结构;(3)主句用“should/would+动词原形”,从句谓语动词用“should/would+动词原形”的结构,例如:If you should pass the exam, I would be very happy.Unless she were to go there today, she would miss the bus.2、以unless引导的条件句表“前提”,意思是“如果不……”,它后面的谓语动词多用虚拟语气,其句子结构有二种形式:(1)unless+主句谓语动词+从句谓语动词;(2)Unless+主句谓语动词+从句谓语动词+be例如:Unless you work hard,you will fail the exams.Unless she is careful,she will be in trouble.3、以if…not引导的条件句,表示一定条件下发生的相反情况,它的谓语动词也用虚拟语气,句子结构由两种形式:(1)if+主句谓语动词+not,从句谓语动词+be;(2)If+主句谓语动词+not,从句谓语动词+动词原形例如:If he doesn't study hard, he won't pass the exam.If you didn't come here on time, you'd miss the train.4、以had better, would rather引导的条件句,它们表示一种建议,它的主句谓语动词必须用“should/would+动词原形”,从句谓语动词也有两种形式:(1)从句谓语动词+be;(2)从句谓语动词+动词原形。

高考英语中最常考的八类状语从句

高考英语中最常考的八类状语从句

高考英语中最常考的八类状语从句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,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 sinceB. even ifC. soon afterD. in case2. My parents live in a small village. They always keep candles in the house ______ there is a power cut. (重庆卷A. ifB. unlessC. in caseD. 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. afterB. beforeC. sinceD. when2. He was told that it would be at least three more months ______ he could recover and return to work. (江西卷A. whenB. beforeC. sinceD. 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……”。

状语从句(9种全)

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。

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)。

初中英语知识点归纳条件状语从句的引导词和构成

初中英语知识点归纳条件状语从句的引导词和构成

初中英语知识点归纳条件状语从句的引导词和构成条件状语从句是英语中常用的一种复合句结构,用于表达某种条件下的结果或后果。

它由引导词引导,构成的规律也比较固定。

下面将对初中英语知识点中条件状语从句的引导词和构成进行归纳总结。

一、条件状语从句的引导词在条件状语从句中,常见的引导词有:if(如果)、unless(除非)、as long as(只要)、provided that(只要)、in case(以防)、on condition that(在...条件下)等。

1. if(如果)if引导的条件状语从句用来表达一种假设情况,后面的结果或后果是可能发生的。

例如:- If it rains tomorrow, we will stay at home.(如果明天下雨,我们将呆在家里。

)- You will succeed if you work hard.(如果你努力工作,你会成功。

)2. unless(除非)unless引导的条件状语从句表达某种可能性的否定情况,相当于if not。

例如:- Unless you study harder, you won't pass the exam.(除非你更努力学习,否则你无法通过考试。

)- I won't go to the party unless you invite me.(除非你邀请我,否则我不会去参加派对。

)3. as long as(只要)as long as引导的条件状语从句表示某种条件成立时,将会有一定的结果或后果。

例如:- You can go out and play as long as you finish your homework.(只要你完成作业,就可以出去玩。

)- As long as you try your best, you will succeed.(只要你尽力,你会成功的。

)4. provided that(只要)provided that引导的条件状语从句表示在某一条件下,才会出现某种结果或后果。

第三条件状语从句

第三条件状语从句

4. If we _________ had met (meet) each other the other day, I would have had (have) a heart-to-heart talk with ________________
you. had been___________ would have seen ________________(see) the famous movie star.
article. Find and underline them in the text. 1.If you don’t want to fall behind in today’s competitive job market, you have to commit yourself to life-long learning.
Conditional 1 (真实从句)& conditional 2 (非真实从句).
2. 1 If I have time to buy the butter and flour and everything, I’ll make you a cake . 3.Yes, if my parents weren’t both at work all day, 2 we would get a dog.
2. If you invest time in developing your study skills now, you’ll be enjoying the rewards for the rest of your life.
3.If I were you, I would ask the teacher.
4. 2 Well, if I saved all my pocket money, I still wouldn’t have enough for an expensive present.

高考状语从句知识点

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。

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( ). 选择 答 : D 1. If you _____ home last night, you would have watched the exciting football match. A. stayed B. was staying C. would stay D. had stayed A 2. If you ______ so careless, you wouldn't have broken the laptop computer. hadn't been B. weren't C. isn't D. wouldn't be C 3. ______ you helped me, I wouldn't have made so much progress in my work. Didn't B. Wouldn't C. Hadn't D. Couldn't
( _____________ (listen) to me, you had listened would not have made ____________________ (not make) that mistake. hadn't climbed 2. If the boy _______________ (not climb) the tree wouldn't have broken yesterday, he _________________ (not break) his leg. had come 3. If you __________ (come) to the class in time this wouldn't have been morning, the teacher __________ (not be ) so angry. 4. If we _________ (meet) each other the other day, I had met would have had heart-to________________ (have) a heart-to-heart talk with you. had been 5. If you ___________ (be) there yesterday, you would have seen ________________(see) the famous movie star.
Sun Wenxiong Computer engineering give himself a second chance to study for a degree by distance learning about to graduate with a Bachelor's degree and getting promoted at work
4. Third conditional
与过去事实相反的虚拟条件句
6 Listen to the interview with the first person who is
lifeexperience. talking about his life-long learning experience. Fill in the table with the correct information. Name Subject Reasons for study How did he study Result of his effort
7
Listen to the interview, then complete the conditional sentences below.
1.If someone like me had failed to get into university ________________ through college exam, he _________________ no would have had chance of getting a degree. 2. If a person had worked for a company for over 20 ___________ years, he would have stayed there until retirement. _________________ 3. In the past if I had wanted to see my grandchildren, _________________ would have had to visit I _______________________ them in person.
2.These habits are useful but you won't learn effectively unless you have the right attitude. (para.3) 3. If you invest time in developing your study skills now, you'll be enjoying the rewards for the rest of your life. (Para. 4)
conditional: 真实从句, 1 First conditional: 真实从句, 条件有可能实现的 非真实从句, 不可能实现的, 2 Second conditional: 非真实从句, 不可能实现的, 与现在事实相反 零条件从句,客观事实, 3 Zero conditional: 零条件从句,客观事实,有先后次序
*注意 主句或从句中的谓语动词构成否定式的时候 注意:3. 主句或从句中的谓语动词构成否定式的时候, 注意 应分别在主句中的would的后面或 从句中的 的后面或if从句中的 的后面或 从句中的had 的 应分别在主句中的 后面加上not. 后面加上 had not done would not have done If sb. + _____________ , sb. ___________ ___________ + third form of the verb. 如果昨天晚上没有去看电影的话,你就完成了那份报告了 你就完成了那份报告了. 如果昨天晚上没有去看电影的话 你就完成了那份报告了. If you had not gone to the cinema last night, you would have finished the report. 如果你告诉过我, 我就不会浪费那么多时间. 如果你告诉过我 我就不会浪费那么多时间. If you had told me that, I would not have wasted so much time. *注意 if 有时可以省略 但if后面部分需改为倒装句语序 注意:4. 有时可以省略,但 后面部分需改为倒装句语序 后面部分需改为倒装句语序. 注意 Had you told me that, I would not have wasted so much time.
Page78 Ex.1 Conditional 2 (第二条件 for 第二条件) 第二条件 advice. 2. If I were you, I would ask the teacher. 3. If I were you, I would buy a new computer. 4. If I were you, I would given up cakes and biscuits . 5. If I were you, I would have a party. 6. If I were you, I would be a doctor.
虚拟语气从句用在与过去事实相反的条件句中, 虚拟语气从句用在与过去事实相反的条件句中,条件句中 过去事实相反的条件句中 的谓语用had+过去分词,结果主句的谓语用would+have+ had+过去分词 的谓语用had+过去分词,结果主句的谓语用would+have+ 过去分词: 过去分词: 如果我早点离开,我就赶上公共汽车了. 如果我早点离开 我就赶上公共汽车了. 我就赶上公共汽车了 If I had left earlier, I would have caught the bus. should 如果我想起了那件事,我是会向母亲谈及的. 如果我想起了那件事 我是会向母亲谈及的. 我是会向母亲谈及的 If I had thought of it, I would have talked to mother. should *注意 不可将 从句中的谓语动词所用的形式误认为过 注意:1. 不可将If从句中的谓语动词所用的形式误认为过 注意 去完成时,它仅是虚拟语气的一种表达形式 它仅是虚拟语气的一种表达形式. 去完成时 它仅是虚拟语气的一种表达形式 2. 在主句中, 若主语是第一人称,也可用 在主句中 若主语是第一人称 也可用should have+ 也可用 过去分词构成谓语. 过去分词构成谓语
5 There are three conditional sentences in this
article. Find and underline them in the text. 1.If you don't want to fall behind in today's competitive job market, you have to commit yourself to life-long learning. (para.1)
Page78 Ex.2 Conditional zero(零条件 for 零条件) 零条件 something that is always true. 2. usually get a better job 3. pass his exams 4. always see something I like 5. is always late. 6. always tells everybody.
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