高中英语状语从句讲解及练习精编版
完整版)高中英语状语从句讲解及练习
完整版)高中英语状语从句讲解及练习状语从句是指在句中作状语的从句，可以分为时间、条件、让步、原因、目的、结果、比较、地点、方式状语从句。
时间状语从句的连词有when、as、while、until、not…until、before、after、since、the minute、the moment、each、every、next、the first time等。
时间状语从句一般使用一般现在时或一般过去时。
当使用when、as、while这三个连词引导时间状语从句时，它们都表示“当…的时候”，但侧重点有所不同。
例如，当使用when引导时间状语从句时，从句的主语与主句主语相同，如果谓语动词是be动词，则从句主语和be可以省略。
而as则不仅表示“当…的时候”，还可以表示“一面…一面”或“随着”。
而while则强调主句的动作和从句的动作同时发生，从句一般用进行时，从句动词必须是延续性动词。
当使用until、not…until时，它们表示“直到…才”。
在肯定句中，主句常用延续性动词；在否定句中，主句常用短暂性动词。
需要注意的是，当not until…位于句首时，主句需要倒装。
例如，“Not until you had explained how did I manage to do it.”It was dark when he finally returned。
XXX the machine type upon seeing it。
As soon as I arrived home。
it began to rain。
Hardly had I arrived home when it began to rain。
XXX: real XXX: if。
even if/though。
unless/if。
not。
as long as/so long as。
as far as/so far as。
provided/providing(that)。
考点18 状语从句(核心考点精讲精练)-备战2024年高考英语一轮复习考点帮(新高考专用)(教师版)
考点18 状语从句（核心考点精讲精练）1. 三年真题考点分布状语从句2. 命题规律及备考策略【命题规律】近3年新高考卷对于没有考查状语从句，但2024仍然有可能考，现在命题是先定主题语篇，然后在定语法考点，考什么语法由语篇内容决定，我们要全面复习语法要点，主要考查：1．考查状语从句的连词；2.状语从句的省略；3. 非谓语动词短语与状语从句之间的转换。
【备考策略】系统归类状语从句连词的用法，尤其是常用连词的用法，熟练掌握各种状语从句的连词的相关考点。
【命题预测】2024年语法填空对状语从句的有可能考查，如果语法填空素材合适，考查状语从句的可能性也是有的，主要集中考查常用连词。
知识点：状语从句考点1 when，while，as1. 【2021·1月浙江高考】_____ he stood in front of the house where he grew up as a child, he saw a lady standing in the entrance.【答案】When/While【解析】考查状语从句。
当他站在小时候在里面长大的那个房子前面时，他看见一位女士站在门口。
根据句意此处填When/While。
【方法指导】1．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。
2．从属连词while 引导的动作必须是持续性的，侧重主句动作和从句动作相对比。
3．从属连词as 可表示从句和主句的两个动作交替进行或同时完成，可译为“一边……，(一边……)”或“随着……”。
4．如果主句表示的是短暂性动作，而从句用延续性动词的进行时态表示在一段时间内正在进行的动作，此时when ，while 与as 可互换使用。
[ 天津滨海七校高三联考]He flashed me a quick smile but rapidly swallowed it___________ he saw my expression.【答案】when【解析】考查时间状语从句。
教案高中英语状语从句分析讲解和解题训练
教案高中英语状语从句分析讲解和解题训练第一章：状语从句概述1.1 定义状语从句是句子中的一个从句，用来修饰动词、形容词、副词或整个句子。
状语从句分为时间状语从句、地点状语从句、原因状语从句、条件状语从句等。
1.2 状语从句的类型时间状语从句：表示时间关系的从句，如when, while, as soon as等。
地点状语从句：表示地点关系的从句，如where, wherever等。
原因状语从句：表示原因关系的从句，如because, since等。
条件状语从句：表示条件关系的从句，如if, unless等。
第二章：时间状语从句2.1 常见引导词when: 在时候while: 在期间as soon as: 一就until: 直到为止since: 自以来before: 在之前2.2 倒装句型部分倒装：将助动词、情态动词或be动词提到主语之前完全倒装：将谓语动词全部提到主语之前2.3 解题训练练习题：分析并改写句子，将时间状语从句改为倒装句型。
第三章：地点状语从句3.1 常见引导词where: 在地方wherever: 无论在哪里nowhere: 无处everywhere: 无处不在somewhere: 在某处anywhere: 任何地方3.2 地点状语从句的用法表示地点的特定位置表示抽象地点概念3.3 解题训练练习题：分析并改写句子，将地点状语从句改为其他状语从句类型。
第四章：原因状语从句4.1 常见引导词because: 因为since: 因为as: 因为now that:既然4.2 原因状语从句的用法表示直接原因表示间接原因4.3 解题训练练习题：分析并改写句子，将原因状语从句改为其他状语从句类型。
第五章：条件状语从句5.1 常见引导词if: 如果unless: 除非in case: 以防provided that: 在条件下on condition that: 只要5.2 虚拟语气表示与现在事实相反的虚拟语气：主句用would/could/might+动词原形，从句用一般过去时表示与过去事实相反的虚拟语气：主句用would/could/might+have+过去分词，从句用过去完成时5.3 解题训练练习题：分析并改写句子，将条件状语从句改为虚拟语气形式。
(完整word版)状语从句讲解和习题附答案解析.doc
WORD格式可编辑状语从句（一）状从句概述定状从句用作状，是起副作用的句子。
位置状从句可以放在主句之前，也可以放在主句之后，、条件、原因和步状从句放在句首需要用逗号和主句隔开。
分根据其作用可以分、地点、原因、条件、目的、步、方式和比等状从句。
作用它可以修、非、定、状和整个句子。
（二）状从句解1.状从句引用法when意“当⋯的候”。
When引从句的可以是延性，也可以是瞬。
并且 when有表示“就在那”while 意“在⋯的候，在⋯的同”。
While 引从句的必是延性的，生，并主句和从句的作同生（或者相）。
While有可以表示比。
as 意“一⋯一⋯”。
As引的作是延性的，生短，一般用于示例A liar is not believed when he speaks the truth. 者真也没有人相信。
Whenhe arrives, I ’ll call you.When you laugh and smile, your body relaxes.While I was standing at the window, I saw several boys running along the street. While John was watching TV, his wife was cooking.The writer was angry as he was travelling on a train to London because someone had主句和从句作同invaded his “space”.生；as 也可以一前一He smiled as he stood up.后。
after 意“在⋯之后”。
表示主With many hungry visitors 句作生在从句作之waiting, don’t stay too后。
主句与从句的作long at your table after you关系与 before 引的have finished.从句相反。
高中英语状语从句讲解与练习(Word)
高中英语状语从句讲解与练习（Word）一.什么是状语从句状语从句是用来做主句的状语，说明主句与从句之间的逻辑关系的一种从属复合句。
状语从句中的连接词不在从句中充当语法成分，只说明主句与从之间的逻辑关系及连接主句与从句的作用。
状语从句的难点是：状语从句种类繁多，关系复杂，在同一种类的状语从句中，有多个连接词。
同一种类的状语从句中的多个连接词存在语义或语气上存在差别，有的连接词兼有多种词性，因些区分状语从句种类，搞清状语从句连接词语义及语气的区别是把握状语从句的关键。
状语从句的种类如下表：二.状语从句连接词用法细分三.状语从句解题指导1.I took my driving license with me on holiday, _ I wanted to hire a car.A. in caseB. even ifC. ever sinceD. if only解析：本题为目的状语从句，带上驾照是为了以防自己想租车开，固选 A。
2．Anyone, once positive for H7N9 flu virus, will receive free me dical treatment from our government.A. to be testedB. being testedC. testedD. to test解析：本题的从句是条件状语从句，考的是状语从句的省略问题，状语从句的主语假如与主句的主语是指同一人或事时，从句的主语与助动词都能够省略。
此句补全为：Anyone, once he or she is tested positive for H7N9 flu virus。
固选 C。
3．You must learn to consult your feelings and your reason you reach any decision. A. although B. before C. because D. unless 解析：本题为时刻状语从句，时刻状语从句引导词 before，由于英语言的差异，在汉语中除了能够明白得为之前外，还能够明白得为之后或来不及。
高中英语状语从句详解及习题精练附答案
状语从句一、知识框架二、知识梳理（一）定义在复合句中修饰主句中的动词、形容词和副词的从句叫状语从句。
状语从句根据它表达的意思不同可分为时间状语从句、地点状语从句、条件状语从句、比较状语从句、目的状语从句、结果状语从句、方式状语从句、让步状语从句和原因状语从句等。
状语从句如果放在主句前通常用逗号分开，放在主句之后一般不用逗号。
（二）九类状语从句一）时间状语从句1、从属连词分类1）基本类包括when, while, as, whenever, before, after, since, till, until, once (一旦), as soon as等。
Did anyone call when I was out?We have known each other since we were children.You’ll feel better after you take the pills.Make sure that all the lights are off before you go to bed.2）名词类包括the moment, the minute, the second, the instant, every time, each time, (the) next time, the last time, any time, the first time等。
Tell me the moment (that) you get the results.Next time you come in, please close the door.He felt nervous each time she spoke to him.The last time we talked he said he needed another two days.3）副词类如immediately, directly, instantly, presently等。
高中英语 状语从句专项讲解及练习(有答案)
状语从句1、地点状语从句地点状语从句表示地点、方位，这类从句通常由where, wherever, anywhere, everywhere引导。
Where there is a will, there is a way.有志者，事竟成。
They will go where they are happy.他们想到他们觉得快乐的地方去。
We must camp where we can get water. 我们必须在能找到水的地方露营。
地点状语从句与定语从句的区别:在于分句在句中作什么成分。
作状语，则是状语从句；作定语修饰名词，则是定语从句。
where引导定语从句时，从句前应有一个表示地点的名词作先行词；而状语从句前则无需先行词。
如：Go back where you came from.(where引导地点状语从句）Go back to the village where you came from.(where引导定语从句，修饰village)We went home, where we had dinner. (where引导定语从句，修饰home)2、原因状语从句原因状语从句一般由because(因为)，since(既然)，now that(既然，因为)，as(由于)等连词引导。
（1）because表示直接的原因，表示原因的语气最强，常表示必然的因果关系。
回答why引起的特殊疑问句，只能用because。
Jane wore a raincoat because it was raining.因为天下雨，所以詹穿着雨衣。
He is absent today because he is ill.他今天缺课，因为他病了。
（2）since表示对方已经知晓、无须加以说明的原因或事实，语气比because稍弱。
I'll do it for you since you are busy.既然你忙，我来替你做吧。
高中英语状语从句专项讲解及练习（有答案）
高中英语状语从句专项讲解及练习（有答案）状语从句1、地点状语从句地点状语从句表示地点、方位，这类从句通常由where, wherever, anywhere, everywhere引导。
Where there is a will, there is a way.有志者，事竟成。
They will go where they are happy.他们想到他们觉得快乐的地方去。
We must camp where we can get water. 我们必须在能找到水的地方露营。
地点状语从句与定语从句的区别:在于分句在句中作什么成分。
作状语，则是状语从句；作定语修饰名词，则是定语从句。
where引导定语从句时，从句前应有一个表示地点的名词作先行词；而状语从句前则无需先行词。
如：Go back where you came from.(where引导地点状语从句）Go back to the village where you came from.(where引导定语从句，修饰village)We went home, where we had dinner. (where引导定语从句，修饰home)2、原因状语从句原因状语从句一般由because(因为)，since(既然)，now that(既然，因为)，as(由于)等连词引导。
（1）because表示直接的原因，表示原因的语气最强，常表示必然的因果关系。
回答why引起的特殊疑问句，只能用because。
Jane wore a raincoat because it was raining.因为天下雨，所以詹穿着雨衣。
He is absent today because he is ill.他今天缺课，因为他病了。
（2）since表示对方已经知晓、无须加以说明的原因或事实，语气比because稍弱。
I'll do it for you since you are busy.既然你忙，我来替你做吧。
高中状语从句讲解(经典打印版)
状语从句1. 时间状语从句(1) when引导的时间状语从句①when引导的时间状语从句，其动词既可以是延续性动作的动词，也可以是瞬间性动作的动词，可以表示主句的动作和从句的动作同时发生，或从句的动作发生在主句的动作之前。
when you apply for a job, you must present your credentials.当你申请工作时，你必须递交你的有关证件。
（同时）when the students heard the teacher’s footsteps, they a ll adopted talking.当学生们听到老师的脚步声时，他们都停止了讲话。
（从句动作发生在前）② when还可表示just then（正在那时）的意思，此时其所引导的从句只放在主句之后。
we were about to start when it began to rain. 我们正要动身，突然天下起雨来。
The game had hardly/scarcely/barely begun when it started raining. 比赛刚刚开始就下起雨来。
(2) as引导的时间状语从句as侧重表示主句和从句的动作并相发生,翻译成一边，一边。
We were having breakfast as she was combing her hair. 她梳头时我们在吃早饭。
(3) while引导的时间状语从句while或“在……期间”，所引导的从句的动作是延续性的，并表示和主句的动作同时发生。
When the teacher paraphrased the text in English, the students listened attentively and took notes. 当老师用英语解释课文时，学生们聚精会神地听并做着笔记。
I can learn while I work. 我可以边工作边学习。
状语及状语从句(语法加练习完整讲解).ppt
4．动词不定式（或不定式短语）： He went to see a film ．他看电影去了。 My father was surprised to hear the news ． 我父亲听到这个消息，感到惊奇。
5．分词（短语）： He sat there reading a novel ． 他坐在那儿看小说。 The students went away laughing． 学生们笑着走开了。
2023最新整理收集 do something
The Adverbial 状语
ห้องสมุดไป่ตู้ 一、什么是状语
修饰动词、形容词 、副词或整个句子 ，说明 动作或 状态特征的句子成分，叫做 状语。
1. 状语修饰动词 Silently she went away. 她悄悄地走开了。
2. 状语修饰句子 Sadly, he will not be there. 令人伤心的是，他将不会在那里了。
The Adverbial Clauses 状语从句
从状种九
时间状语从句 地点状语从句 原因状语从句 条件状语从句 让步状语从句 结果状语从句 目的状语从句 方式状语从句 比较状语从句
时间状语从句
I will discuss this with you when we meet. 我们见面时再与你讨论这件事。
(2)如果动词前有一个或几个助动词，状语位于第一个 助动词之后。 He has already had his lunch ．他已吃过午饭了。
(3)如果动词是 be，状语就放在 be动词之后。 He is always at home. 他总是在家。
3.状语位于句末，这是状语的通常位置。 We get up at six in the morning . 我们早晨六点起床。
高中英语状语从句讲解及练习(含答案)
状语从句状语从句在句中作状语，可分为：时间、条件、让步、原因、目的、结果、比较、地点、 方式状语从句。
一、时间状语从句弓丨导时间状语从句的连词有： whe n, as, while, un til, not…un til, before, after, sin ce, theminute,the mome nt, each( every, next, the first) time 等。
时间状语从句中一般用一般现在时或一般过 去时。
1. When , while, as 都可解释为“当 '''的时候”但侧重点有所不同。
1)WhenEg: When I arrived home , I had a little rest.注意点：when 从句的主语与主句主语相同，谓语动词是 be 动词时，从句主语和 Eg: When (she was) walk ing along the street, she met her class teacher. 2)AsAs 除了表示“当 ''' 的时候”，还可表示为“一面 ''' 一面”,“随着” Eg: He sang as he danced.一面 '''一面)You will grow wiser as you grow older.( 随着) 3)While 表示“当 ''' 的时候”强调主句的动作和从句的动作同时发生，从句动词必须是延续性动词。
Eg: While we were work ing, they were havi ng a rest.While (they were) havi ng a discussi on, they got very con fused.注意点：while 有对比的含义，解释为“然而”。
eg: I prefer black tee, while he likes coffee. 2.until, not …until 表示“直到 '、'才”，在肯定句中主句常用延续性动词;常用短暂性动词。
完整版高中英语状语从句讲解及练习
状从句状从句在句中作状，可分：、条件、步、原由、目的、果、比、地址、方式状从句。
一、状从句引状从句的有： when, as, while, until, not ⋯until, before, after, since, the minute, the moment, each( every, next, the first) time 等。
状从句中一般用一般在或一般去。
1．When , while, as 都可解“当```的候”但要点有所不一样。
1) WhenEg: When I arrived home , I had a little rest.注意点：when 从句的主与主句主同样，是be ，从句主和Eg: When (she was) walking along the street, she met her class teacher.2) AsAs 除了表示“当```的候”，可表示“一面``` 一面”，“跟着”Eg: He sang as he danced.(一面 ```一面 )You will grow wiser as you grow older.(跟着)3) While 表示“当 ``` 的候” 主句的作和从句的作同生，be 能够省略。
从句一般用行，从句必是延性。
Eg: While we were working, they were having a rest.While (they were) having a discussion, they got very confused.注意点：while 有比的含，解“但是”。
eg: I prefer black tee, while he likes coffee.2．until, not ⋯ until 表示“直到 ```才” ,在一定句中主句常用延性；在否认句中主句常用短性。
一定句： I waited until midnight.否认句： I did not leave until midnight.注意点：1） not until在⋯句首，主句用倒装eg: Not until you had explained how did I manage to do it.2) It is not until⋯引that的⋯ 句It was not until it was dark that he came back.3. the minute, the moment, each time 都可表示“一 ``` 就 ```”eg: The worker recognized the type of the machine the moment he saw it.注意点：the minute, the moment, each ( every, next, the first) time作不睦when 用。
状语从句详细讲解与练习
e.g. I hurt my should while I was doing gym.
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When: 1.当…的时候 When I was young, I went to town myself. When he receives the letter, he’ll tell us.
条件,结果,方式,让步,,时间,比较.
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在复合句中起名词作用的从 句叫做名词性从句。
名词性从句
主语从句 表语从句 宾语从句
同位语从句
句 2. 地点状语从句 3. 原因状语从句 4. 条件状语从句 5. 让步状语从句 6. 目的状语从句 7. 结果状语从句 8. 方式状语从句 9. 比较状语从句
after引导的时间状语从句
1.常译为“在……之后”， 2.表示主句的动作发生在从句的动作之后。
1.After you use plastic bags, you mustn’t throw them about. 用过了塑料袋之后，不准到处乱扔。
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The Amrican War lasted four years _B____ the North
• 4. You are welcome to come back at any
time you want to.
every time,each time,next time,the first time,any
• 5. At the ltaimset 等ti名m词e短s语h引e导s状aw语从J句am不加es介, 词h。e was
A.until B. after C. when
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D. while
高中英语 状语从句精讲及专项练习(有答案)
状语从句新课讲解知识点1）状语与状语从句状语（adverbial)状语（adverbial)的定义：英语中,修饰动词、形容词、副词等的句子成分叫状语（adverbial)。
状语的功用：状语说明地点、时间、原因、目的、结果、条件、方向、程度、方式和伴随状况等。
状语一般由副词、介词短语、分词和分词短语、不定式或相当于副词的词或短语来担当。
其位置一般放在句末，但也可放在句首或句中。
副词是一种用来修饰动词,形容词,副词或全句的词,说明时间,地点,程度,方式等概念。
请判断状语部分。
1.Naturally, our grandparents were pleased to get our phone call. ( )2.We worked hard, from sunrise to sunset. ( )3.Seen from a distance, the farmhouse looked deserted. ( )状语的位置比较灵活，可以位于句首、句末或句中。
enough用作状语修饰形容词和副词时必须后置。
状语从句（Adverbial Clause）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。
解题要领：了解各类状语从句典型连词的基本意思，弄清主从句之间的逻辑关系，代入题干进行校对。
状语从句在句中作状语，修饰主句中的动词，形容词或副词等。
状语从句放在主句之前时，常用逗号分开；放在主句之后，一般不用逗号，状语从句按其意义和作用可分为时间、条件、原因、让步、目的、结果、方式、比较、地点等9种。
引导状语从句的连词分类1.时间和条件状语从句讲求“主将从现”的时态规则，但要注意whether一词。
⏹Whether it rains (rain) or not, I shall go out for an outing tomorrow.⏹Can you tell me whether it will rain (rain) tomorrow?⏹Whether it will do (do) us more harm than good remains to be seen.当whether作“无论”解，用现在时表将来。
高考英语语法精讲精练精析状语从句
专题九状语从句一、地点状语从句地点状语从句通常由where, wherever 引导。
Where there is a will, there is a way.Wherever you go，I'm right here waiting for you.二、方式状语从句方式状语从句通常由as, (just)as...so..., as if, as though引导。
1．as，(just)as...so...引导的方式状语从句通常位于主句后，但当(just)as...so...结构位于句首时，as从句带有比喻的含义，意思是“正如；就像”，多用于正式文体。
Always do to the others as you would be done by.As water is to fish, so air is to man.Just as we sweep our rooms, so we should sweep backward ideas from our minds. 2.as if, as though两者的意义和用法相同，引出的状语从句谓语多用虚拟语气，表示与事实相反；有时也用陈述语气，表示所说情况是事实或实现的可能性较大。
译作“仿佛……似的；好像……似的”。
They completely ignore these facts as if (as though)they never existed.He looks as if ( as though)he had been hit by lighting.It looks as if the weather may pick up very soon.三、原因状语从句比较because, since, as和for的用法：1．because语势最强，用来说明人所不知的原因，回答why提出的问题。
当原因是显而易见的或已为人们所知的，就用as或since。
(完整版)高中状语从句讲解+练习
more you exercise, the healthier you will be.
is to men what oil is to machine. 食物之于人，犹如油之于机器。
． 方式状语从句
as, as if, how
． 条件状语从句
if, unless,
as/so long as, only if, providing/provided that, suppose that, in ca
that, on condition that
start our project if the president agrees.
be的某种形式。从句中的主语和be动词常可省略。例如：
( the museum is ) completed , the museum will be open to the public next year .
go to the seaside for his holiday if (it is ) possible.
immediately , directly, no sooner … than, hardly …when, scarcely … wh
didn’t realize how special my mother was until I became an adult.
John was watching TV, his wife was cooking.
remarkable.
． 目的状语从句
so that, in order that
lest, in case, for fear that，in the hope that, for the purpose that,
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高中英语状语从句讲解及练习公司内部编号：（GOOD-TMMT-MMUT-UUPTY-UUYY-DTTI-状语从句状语从句在句中作状语，可分为：时间、条件、让步、原因、目的、结果、比较、地点、方式状语从句。
一、时间状语从句引导时间状语从句的连词有：when, as, while, until, not…until, before, after, since, the minute, the moment, each( every, next, the first) time等。
时间状语从句中一般用一般现在时或一般过去时。
1．When , while, as都可解释为“当```的时候”但侧重点有所不同。
1)WhenEg: When I arrived home , I had a little rest.注意点：when 从句的主语与主句主语相同，谓语动词是be 动词时，从句主语和be可以省略。
Eg: When (she was) walking along the street, she met her class teacher.2)AsAs 除了表示“当```的时候”，还可表示为“一面```一面”，“随着”Eg: He sang as he danced.(一面```一面)You will grow wiser as you grow older.(随着)3)While表示“当```的时候”强调主句的动作和从句的动作同时发生，从句一般用进行时，从句动词必须是延续性动词。
Eg: While we were working, they were having a rest.While (they were) having a discussion, they got very confused.注意点：while 有对比的含义，解释为“然而”。
eg: I prefer black tee, while he likes coffee.2．until, not…until表示“直到```才”,在肯定句中主句常用延续性动词；在否定句中主句常用短暂性动词。
肯定句：I waited until midnight.否定句：I did not leave until midnight.注意点：1）not until…在句首，主句用倒装eg: Not until you had explained how did I manage to do it.2) It is not until…that…引导的强调句It was not until it was dark that he came back.3. the minute, the moment, each time都可表示“一```就```”eg: The worker recognized the type of the machine the moment he saw it.注意点：the minute, the moment, each ( every, next, the first) time作连词不和when 连用。
4．Hardly/scarcely…when, no sooner…than, as soon as表示为“一```就```”eg: I had hardly/scarcely got home when it began to rain.I had no sooner got home than it began to rain.It began to rain as soon as I got home.注意点：Hardly/scarcely…when, no sooner…than位于句首，主句用倒装eg: Had I hardly/scarcely got home when it began to rain.No sooner had I got home than it began to rain.二条件状语从句条件状语从句分为两大类：真实条件句和虚拟条件句。
引导条件状语从句的连词有：if, even if/though, unless/ if …not, as long as/ so long as, as far as/so far as, provided/providing (that), on condition that 等。
条件状语从句中如果主句是将来时，条件状语从句用一般现在时。
1.unless 和if…notunless 相当于if…noteg: You will fail unless you study hard.You will not fail if you study hard.注意点：在虚拟条件句中可用if…not，但不能用unlesseg: If she were not too silly,she would understand.2．引导条件状语从句的其它连词：Eg: You may go there ,as long as you keep quite.Eg: I shall give you the book on condition that you return it tomorrow.Eg: I will go provided that you go too.三让步状语从句引导让步状语从句的连词有：though, although, even if/ though, however, no matter how, no matter what, no matter who等。
1．though, although不可与but连用，但可以和yet , still 连用.Eg: Though/Although it is raining ,they are still running outside.注意点：1）though可引导倒装(although不引导倒装)，结构为：强调对象+as/though+主语+其它成分，强调对象可为表语（名词、形容词）或状语（副词），表语为名词时，前面不用冠词。
Child as/ though he was, he knew what was the right thing to do. Tired as he is, he goes on with his work.2）despite 和 in spite of 也有让步意义，后接名词或动词，而though, although是连词，后接从句。
Eg: Despite /In spite of wanting to see him again, she refused to reply to his letter.Though/although she wanted to see him again, she refused to reply to his letter.2. “no matter+疑问词”或“疑问词+后缀ever”eg: No matter what happened, he would not mind.Whatever happened, he would not mind.注意点：no matter+疑问词不能引导名词性从句3.even if/ though表示“即使”eg: He doesn’t want to marry her even if/ though he loves her very much.四原因状语从句引导原因状语从句的连词有：because, since, as , nowthat ,considering that, for the reason that , due to the fact that,owing to the fact that等1．becausebecause语气最强，通常用于回答why 提出的问题注意点：在it was…that…的强调结构中，强调原因状语从句可用because引导，不用since,as, for引导。
Eg: It is because she is too inexperienced that she does not know how to deal with the situation.2. since和assince的语气比because 弱，比as强，表示间接的，已知的原因，自然的结果，表示“既然，由于”。
Eg: As/ Since you are not very well, you had better have a rest. 3．for当for表示原因关系时，for分句是对第一分句内容的推断或猜测。
Eg: It must have rained last night, for the ground is wet now.五目的状语从句引导目的状语从句的连词有： so that, in order that, lest, in case, for fear that等。
Eg: You must speak louder so that/in order that you can beheard by all.He wrote the name down for fear that he should forget it.Better take more clothes in case the weather is cold.注意点：lest, in case, for fear that所引导的状语从句中，动词可以用虚拟语气，形式为should+动词原形，也可不用虚拟语气，用动词的一般现在时或一般过去时。
Eg: You had better leave the key at home in case one of us should think of/thinks of coming back.六结果状语从句引导结果状语从句的连词有：so that, so…that, such…that等eg: He is so young that he can not go to school.He is such a young boy that he can not go to school.1．常用句型：so+形容词/副词+that从句so+形容词+a/an+单数可数名词+that从句such +a/an+形容词+单数可数名词+that从句such +形容词+复数可数名词/不可数名词+that从句2．so和such的搭配规律such修饰名词或名词词组，so修饰形容词或副词,so还可接many, few, much, little等。