用介词短语来代替状语从句上课讲义
介词短语代替状语从句安在19岁时
介词短语代替状语从句安在19岁时在英语写作中，介词短语代替状语从句的应用尤为重要。
它能够使句子更加简洁明了，提高句子的流动性，避免重复。
本文将详细介绍介词短语代替状语从句的常用情况、具体实例分析以及注意事项。
一、引言随着英语学习的普及，越来越多的同学开始关注到介词短语在句子中的作用。
在19岁时，安开始认识到介词短语代替状语从句的重要性。
状语从句作为句子的重要组成部分，修饰主句中的动词、形容词、副词等，表达时间、地点、条件、目的、结果等概念。
而介词短语在某些情况下可以替代状语从句，使句子更加简洁。
二、介词短语代替状语从句的常用情况1.时间状语从句时间状语从句通常用来表示主句动作发生的时刻。
例如：原句：I will go to the park when I finish my homework.改写：I will go to the park after I finish my homework.2.地点状语从句地点状语从句表示主句动作发生的地点。
例如：原句：She is studying in the library where she can concentrate better.改写：She is studying in a place where she can concentrate better.3.条件状语从句条件状语从句表示主句动作发生的条件。
例如：原句：If it doesn"t rain, we will have a picnic.改写：We will have a picnic provided that it doesn"t rain.4.目的状语从句目的状语从句表示主句动作的目的。
例如：原句：I bought a new computer to improve my work efficiency.改写：I bought a new computer so as to improve my work efficiency.5.结果状语从句结果状语从句表示主句动作产生的结果。
中考状语从句讲解PPT课件
since
1. 引导状语从句时，主句用现在完成时或现 在完成进行时，从句中用一般过去时。 • I’ve been living here since I came to Beijing. • I have returned home four times since I came
here. 2. 常用句型： • It is (has been)…+ since +一般过去时 • It is five years since I began to learn English.
any time, by the time到…. （名词性短语）
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• Every/Each time I held the boat and carved the year, my grandfather seemde near.
• By the time he was 17, he had been to almost 20 contries to get his disease cured.
such…that “如此的…以致于”表结果。 1.such＋a(an)＋形＋名词＋that... 2.such＋形＋可数名词复数／不可数名词＋that...
27
so＋many/few/much/little＋相应名词+that... 比较：
so many / few flowers →such nice flowers so much / little money→such rapid progress so many people → such a lot of people There were so many people in the bus that I could hardly move. She put so much butter and sugar in the cake that I didn’t dare to eat too much. He made so many mistakes that he failed the exam once again.
介词短语与状语从句的搭配与变化初中重要知识点解析
介词短语与状语从句的搭配与变化初中重要知识点解析介词短语与状语从句是英语语法中常见的两种句子成分，它们在句子中充当状语，用来修饰动词、形容词、副词等。
本文将从初中英语的角度对介词短语与状语从句的搭配和变化进行解析，以帮助初学者更好地理解和运用这两种语法结构。
一、介词短语1. 定义与作用介词短语是由介词和其后的名词、代词或动名词构成的短语。
它可以在句子中作状语，用来表示时间、地点、方式、原因、目的、条件等。
例如：- We went to the park on Sunday.（我们周日去了公园。
）- She walked to school with her friends.（她和朋友一起步行去学校。
）- I studied math by myself.（我一个人学习了数学。
）2. 搭配与变化介词短语可以根据句子的需要进行变化和扩充。
常见的变化方式有以下几种：a. 介词的变化根据不同的语境，介词可以进行变化。
常见的介词包括in、on、at、by、with、from、to、for、of等。
例如：- They will arrive in Beijing tomorrow.（他们明天将抵达北京。
）- I have a meeting on Monday.（我星期一有个会议。
）- She is good at playing tennis.（她擅长打网球。
）b. 名词的变化由于介词短语后面通常跟着名词或代词，名词的变化也是常见的方式之一。
名词可以是单数形式、复数形式、所有格形式等。
例如：- They live in a big house.（他们住在一栋大房子里。
）- I have three cats at home.（我家里有三只猫。
）- We are friends of John.（我们是约翰的朋友。
）c. 短语的扩充介词短语可以通过扩充其他短语来改变原始句子的表达方式。
例如：- She arrived at the airport by taxi.（她乘出租车到达机场。
状语从句的简化讲解
状语从句的简化讲解状语从句是从句的一种用途，用来修饰主句中的动词、形容词、副词，表达时间、地点、原因、条件、目的、方式等。
简化状语从句是指将完整的状语从句转换为简洁的词组或词语。
具体来说，可以通过以下几种方法进行简化：1. 使用分词结构：将状语从句中的谓语动词改为现在分词或过去分词形式，构成分词短语作为状语。
例如：While I was studying forthe exam, my friend called me. 可简化为：Studying for the exam, my friend called me.2. 使用介词短语：将状语从句中的介词部分提取出来，构成介词短语作为状语。
例如：She went to the park after she finished her homework. 可简化为：She went to the park after finishing her homework.3. 使用副词或连词：将状语从句中的连词替换为相应的副词，构成简单的副词短语作为状语。
例如：Because it was raining, we stayed at home. 可简化为：Due to the rain, we stayed at home.4. 去掉主从句共有的部分：如果主从句中存在相同的主语、谓语或其他部分，可以把它们省略，使得从句变得更加简洁。
例如：When she saw the movie, she was impressed. 可简化为：Seeing the movie, she was impressed.总之，简化状语从句在表达中起到了简洁、明确的作用，更加符合书面语的要求。
高考英语总复习 语法突破 第10节 介词、连词和状语从句课件 新人教版
第十节
介词、连词和状语从句
1【命题分析】ຫໍສະໝຸດ 介词和连词虽然都属于虚词，但在英语学习中非常重要，
也是每年高考的必考项目。高考主要考查介词在具体语境中的 应用，介词与其他词性的搭配辨析，介词和连词的一些习惯用 法和固定搭配等。 状语从句是每年必考的题目之一，考查的重点仍然是考生
容易混淆的近似连词的用法，试题的结构越来越复杂，设题的
并列连词所连接的两个或两个以上的词、词组或句子是并
列关系，无主次之分；但可表示转折、因果及选择等意义。
如： “I won’t go.”“But you’ve told me you would.” “我不去。”“可是你说了要去的。” My sister is expecting me，so I must be off now.
住”，也可表时间，意为“在……期间，(多年)以来”等，它还 有“在……(问题)上，对(某事)”等引申意义。如： You can’t wear a blue jacket over that shirt—it’ll look terrible. 你不能在那件衬衣外面再穿上蓝色的夹克——太难看了。
We had a pleasant chat over a cup of tea.
Ⅳ.to 与情感名词连用， 表示“某种行动后产生的感觉” delight surprise horror ＝to the to＋one’s＋ sorrow joy regret delight surprise horror of sb. sorrow joy regret
从地球上观察太空存在这样一个问题，就是地球的大气中
有大量的尘埃。
4 ． beyond 表示“ ( 时间 ) 过了，比 …… 晚，迟于； ( 位置 )
第10讲状语从句(讲义)中考英语一轮复习(学生版)
►第10讲 状语从句 （讲义）目录一 复习目标 掌握目标及备考方向二 考情分析 2023年中考情态动词考情分析 三网络构建知识点头脑风暴四情态动词考向1. 状语从句的概念和分类2. 掌握时间、原因、条件、目的、结果、让步、比较等状语从句连接词的用法3.提升必考题型归纳五真题感悟 中考情态动词经典考题【复习目标】1.掌握状语从句的概念和分类2.掌握时间、原因、条件、目的、结果、让步、比较等状语从句连接词的用法【考情分析】状语从句做题方法： 1.翻译题干2.把题目中的逻辑关系理顺3.带入连接词一一对比，看谁最合适4.千万别忘了主将从现，主过从过等等时态规则5.多读状语从句培养语感，做题速度也会提升状语从句是历年各省市中考必考知识点。
从考查形式看，一般有单项选择、完形填空、词语运用等。
所占分值通常为2～4分。
另外注意状语从句和定语从句、名词性从句的区别；从命题意图看，侧重考查考生的具体语言环境中使用连词的能力。
【网络构建】一、状语从句概述考向二状语从句的连接词概念：在复合句中作状语的从句叫作状语从句。
状语从句一般修饰主句中的动词、形容词或副词等。
功能：九大状语从句分别表示（时间、条件、原因、地点、目的、结果、方式、让步、比较）等意义。
位置：位置灵活，可用于主句之前或之后。
1．when, while, as引导的时间状语从句2. 比较until和till此两个连词意义相同。
肯定形式表示的意思是＂做某事直至某时＂，动词必须是延续性的。
否定形式表达的意思是＂直至某时才做某事＂。
动词为延续性或非延续性都可以。
正确使用这两个连词的关键之一就在于判断句中的动词该用肯定式还是否定式。
肯定句：I slept until midnight. 我一直睡到半夜时醒了。
Wait till I call you. 等着我叫你。
（在肯定句中可用before代替。
例如：Let’s get in the wheat before the sun sets.）否定句：She didn’t arrive until 6 o’clock. 她直到6点才到。
初高中英语衔接课程讲义：状语从句
初高中英语衔接课程讲义：状语从句专题九：状语从句的考点集汇，讲解和训练定义：用来充当状语的句子称为状语从句。
功能：它主要用于修饰句子中的谓语动词、形容词或副词等，有时修饰整个句子。
位置：状语从句的位置较活：可以放在主句之前，用逗号与主句隔开；也可以放在主句之后，一般不用逗号。
由于它是从各个方面来修饰、说明谓语动词发生时的各种情况，所以常见的状语从句有九种之多。
各种不同的状语从句所使用的关系词也各不相同。
一、时间状语从句引导时间状语从句的从属连词有很多，现将分类用法如下：1.从属连词when，while 与as连词用法谓语动词意义例句whe n从句的动作和主句的动作可以同时发生，也可以先后发生。
可以指时间的某个点，也指一段时间。
延续性动词非延续性动词当……时候When they heard thenews，they all jumpedwith joy.I owed Jack $ 100when I was in London.as 从句的动作与主句的动作同时发生。
可以指时间的某个点，也指一段时间。
延续性动词非延续性动词随着……一边……；一边……当……时候The students sang asthey walked.As he stood up，hedropped the glass，breaking it into pieces.whil e从句的动作与主句的动作同时发生，强调一段时间。
从句中常用过去进行时态或一般过去时态。
延续性动词当……时候在……期间While I was reading，he came in.I made some foreignfriends while I was inLondon.注：1)when还可作并列连词，其意义为“那时，这时”，相当于and at this/that time。
常用于下列句式：sb.was doing sth.when...某人正在干某事就在这时……sb.was about to/ going to do sth.when...某人正打算干某事就在这时……sb.body has just done somesth.when...某人刚干了某事就在这时……2)when还表示原因“既然”。
状语从句讲义(教师版)(最新整理)
Adverbial clauseI. What is an adverbial? 什么是状语？Underline the adverbial of each sentence below.Eg:①He is writing carefully.②The baby is very happy.③You did the job quite well.④Surely, we will help you.⑤The concert will be on in the music hall.⑥The class meeting is held at 3:40, every Monday afternoon.Note:1. 在句中修饰动词、形容词、副词或整个句子，说明动作程度或状态等的成分叫作状语。
2. 状语通常用副词、介词短语或从句等形式来表现。
II. What is an adverbial clause? 什么是状语从句？Underline the adverbial and circle the conjunctions of each sentence below.①While I was walking along the street,I found many beautiful tall buildings.②②I shall go to the park unless it rains.③If it is fine tomorrow, we’ll go for a picnic.④We must camp where we can get water.Note: 由从属连词引出的句子作状语叫做状语从句。
Ⅲ. Types of adverbial clauseAdverbial clause of purpose, result, concession, comparison, time, place, reason, condition.1. Adverbial clause of purposeFill blanks with conjunctions above.(1). I took many photos of China with me in order that/so/ so that I could show people Chinese culture.(2). Mary lent me this book in order that/so/ so that I could read about a new diet.Note: 状语从句通常位于句后,目的状语从句表示主句动作的目的1. 从属连词: so that/ in order that2. 重点提示:①We started early so that we could catch the first train.He studies hard in order that he can pass the exam.从句中谓语动词常含情态动词:can/could, may/might, shall/should, will/would②We started early so that we could catch the first train.He studies hard in order that he can pass the exam.状语从句部分必须是完整句: so that/in order that +主语+谓语+(can/could等+动词原形) +其他③Paraphrase these sentences by using adverbial clause of purpose1. We started early in order to catch/so as to catch the first train.We started early so that we could catch the first train.2. He studies hard in order to pass/ so as to pass the exam.He studies hard in order that he could pass the exam.目的状语从句可与in order to/so as to/to 等转换。
最新中考状语从句精讲讲述教学讲义ppt课件
2)so that也可引导结果状语从句，引导结果状语从句一
般要用逗号和主句隔开。
eg:I shall write to you after I finish the work.
（6）since意为是“自从……以来”或“自从……以 后”。一般情况下，从句用一般过去时，主句用现在完 成时或一般现在时或现在完成进行时。引导的从句的谓 语动词可以是延续性的动词，也可以是瞬间性的。 eg:I have been in Beijing since you left. 自从你离开以 来，我一直在北京了。 （7）as soon as意为是“一…就…”，时态：1、若主句一般
将来时,从句用一般现在时代替一般将来时 eg:I will tell him the news as soon as he comes back.
2、指紧接着发生的两个短动作,主从句都用一般过去时。 （8）whenever意为是“每当，任何时候”。
eg:Whenever we met with difficulties, they came to
help us. whenever可与“every time”替换。
（9）till或until引导的时间状语从句
一)主句谓语动词是延续性动词时，主句用肯定形式，表示这一动作 或状态一直持续到till/until引导的从句动作发生为止。
eg：I will wait for you till/until you come to see me.我会一 直等，直到你来看我。
二）主句谓语动作是瞬间性动词时，主句用否定形式，表示主句的 动作直到until引导的从句动作发生才发生。
eg：I didn't go to bed until my father came back.直到我父 亲回来我才上床睡觉。
最新状语从句课件讲解和练习教学讲义ppt
(3)no sooner… than/ hardly… when / scarcely… when No sooner had they reached home than it started to rain. Hardly had I entered the room when the telephone rang.
①While I was walking down the street, I came across an old friend. ( while =__w__h_e_n_)
②He likes pop music, while I am fond of folk music. ( while but
二、若since引导的状语从句的谓语动词是持 续性动词或表示状态的动词的过去时时，则 从句表示的时间是“从那持续动作或状态结 束时算起”。如：
I haven’t heard any noise since I slept. Sleep 为持续性动词，sleep的动作结束时， 即“醒来”时，这句应译为“我醒后还未听 到任何声音”。
一、若since引导的状语从句的谓语动词 是终止性的过去时，则从句表示的时间 是“从动作开始的那一时刻起”。如：
He has studied very hard since he came to our school.
自从他来到我们学校，他学习就非常 努力。
We have been missing them since they left here 自从他们离开这里，我们就一直很想念 他们。
2021届高中英语新高考一轮语法复习讲义(十二)状语与词类的关系(含真题练习与解析)
2021届高中英语新高考一轮语法复习讲义（十二）状语与词类的关系（含真题练习与解析）状语通常由副词及副词短语、介词短语、不定式（短语）、分词（短语、）名词或状语从句等构成。
用来修饰动词、形容词、副词或全句，表示方式、原因、时间、地点、条件、方向、程度、目的、让步等如：1.The boy is standing upside down .(倒立，表示方式)动词副词作状语2.Mike was late because of his laziness.（由于懒惰，表原因）形容词介词短语作状语3.We shall arrive at school at 7 am.动词地点状语时间状语4.The old man will die if we can't send him to a hospital at once .动词条件状语从句5.I saw the children running to the north.(向北，表方向)动词6.Thank you very much.( 非常，表示程度，very 为副词，修饰副词much)动词7.My brother got up early to catch the first bus.(为了赶上首趟公交，表目的)动词副词（表程度）不定式短语做状语8.The girl greeted me though we didn't know each other.(尽管我们素不相识，表让步)动词状语从句作状语9.Please waita minute .（表时间）动词名词作状语点拨状语通常谓语所修饰的词（每句中的彩色部分）之后，或以词组形式、或以单个的词、或以从句形式构成（句中划线部分）。
真题演练找出下列句子中的状语部分1.【2019·江苏卷·单项填空】22.The musician along with his band members has given ten performances(演出) in the last three months.2.【2019·江苏卷·单项填空】29.A few months after he had arrived in China, Mr. Smith fell in love with the people and culture there.3.【2019·江苏卷·单项填空】33.They are trying to make sure that 5G terminals have been installed by 2022 for the BeijingWiner Olympics.他们正努力确保在2022年北京冬奥会之前安装5G终端。
用介词短语来代替状语从句
用介词短语来代替状语从句1.While it is being compacted, considerable lateral横(向)的pressureis exerted by concrete.2.If pressure is constant, gases will expand when heated.3.If values of W are small, the impedance of the capacitor is largerelative to R.4.When temperatures are greater than 60℃，this equation does notapply.5.While it is being compacted, considerable lateral pressure isexerted by concrete.•During compacting/compactification,(a) considerable lateral pressure is exerted by the concrete.•At/For/With constant pressure, gases will expand when heated.•For/With small values of ω,the impedance of the capacitor is large relative to R.•At/With temperatures greater than 60oC, this equation does not apply.名词短语代替状语从句6.If the diode is analyzed physically, it can be shown that7.In this case electrons will possess more energy, so that thebrightness of the spot can be increased.A physical analysis of the diode shows that•In this case electrons will possess more energy, thus increasing the brightness of the spot.1.Some water which has been distilled some distilled water2.A bridge which has been incorrectly designed an incorrectlydesigned bridge3.The substances which are not known the unknown substances4.A problem which has still not been solved an unsolved problem5.Satellites which are made by man man-made satellites6.Signals which are modulated in amplitude振幅amplitude-modulatedsignals7.Steel which is plated with chromium铬chromium-plated steel8.Pumps which are driven by wind wind-driven pumps9.The instruments which are used the instruments used10.The number of mistakes which have been found the number ofmistakes found11.The new cars which a used for racing the new racing cars12.Paper which is used for drawing drawing paper13.Bodies which fall freely freely falling bodies14.A country which produces oil an oil-producing country15.The point at which it boils the boiling point16.Material is tested in this way material so/thus tested17.Paper which has blue lines blue-lined paper18.A saw which has wide teeth a wide-toothed saw19.A triangle which has acute angles an acute-angled triangle将下面句子翻译虚拟语气若没有半导体(semiconductor),卫星通讯(satellite communications)就不可能了。
介词短语与状语从句的转换
介词短语与状语从句的转换介词短语和状语从句是英语语法中常见的句子成分，它们分别用于修饰动词、形容词、副词等。
在表达方式上，介词短语和状语从句有时可以互相转换，达到语句变换和表达方式变化的效果。
本文将探讨介词短语和状语从句之间的转换，并提供实例以帮助理解。
一、介词短语与状语从句的定义与特点介词短语是由介词和其后的名词短语组成的结构，一般用来修饰名词或动词。
例如，“on the table”（在桌子上）中的介词短语修饰了名词“table”。
状语从句是由连接词引导的从句，一般用来修饰动词、形容词、副词等。
例如，“when I was young”（当我年轻的时候）中的状语从句修饰了动词“was”。
介词短语与状语从句的相同点是它们都可以用来修饰句子中的其他成分，但在结构和表达方式上有所不同。
二、介词短语与状语从句的转换1. 时间状语转换：介词短语：on Monday（在星期一）状语从句：when I was a child（当我还是个孩子的时候）例如：介词短语：I will meet him on Monday.（星期一我将见他。
）状语从句：I will meet him when I was a child.（当我还是个孩子的时候我将见他。
）2. 地点状语转换：介词短语：at the supermarket（在超市）状语从句：where I bought some groceries（在那我买了一些杂货）例如：介词短语：I met her at the supermarket.（我在超市遇见了她。
）状语从句：I met her where I bought some groceries.（我在买杂货的地方遇见了她。
）3. 原因状语转换：介词短语：due to bad weather（由于恶劣天气）状语从句：because of the bad weather（因为天气不好）例如：介词短语：The flight was delayed due to bad weather.（航班因恶劣天气延误。
状语从句的转换与替代
状语从句的转换与替代状语从句是汉语中一种常见的短语结构，用来修饰动词、形容词、副词等，起到表示时间、原因、条件、方式等状语成分的作用。
但是，在实际写作中，过多的状语从句使用会使文章显得臃肿，降低阅读体验。
因此，学习如何转换和替代状语从句是提高写作水平的必要技巧。
一、状语从句的转换1. 用动词不定式或动名词替代状语从句例句1：He left the company because he was not satisfied with the salary.转换后：He left the company, unsatisfied with the salary.例句2：She studied hard as she wanted to pass the exam.转换后：She studied hard to pass the exam.2. 用介词短语替代状语从句例句1：She speaks Chinese fluently because she has been learning itfor many years.转换后：She speaks Chinese fluently, thanks to her many years of learning.例句2：He didn't go to work on time because he missed the bus.转换后：He didn't go to work on time, due to missing the bus.3. 用分词短语替代状语从句例句1：He read the newspaper while he was having breakfast.转换后：Having breakfast, he read the newspaper.例句2：They worked hard because they wanted to finish the project on time.转换后：Wanting to finish the project on time, they worked hard.二、状语从句的替代1. 用副词或副词短语替代状语从句例句1：He will come if it doesn't rain.替代后：He will come rain or shine.例句2：She stayed up late to finish her homework because it was due the next day.替代后：She stayed up late to finish her homework, regardless of the deadline.2. 用形容词或形容词短语替代状语从句例句1：She sings well because she has received professional training.替代后：She sings well with professional training.例句2：He works hard because he wants to achieve success.替代后：He works hard for success.3. 用名词或名词短语替代状语从句例句1：He stayed at home because it was raining heavily.替代后：He stayed at home due to heavy rain.例句2：They went to the park after they finished their work.替代后：They went to the park upon completing their work.通过转换和替代状语从句，我们可以使文章的结构更加简练、紧凑，同时也能提升文章的流畅度和可读性。
状语从句讲义
第二讲状语从句讲义2011/03/05状语从句（Adverbial Clause）状语从句指句子用作状语时，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。
状语从句在句子中作状语，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、比较和地点等9种。
1．时间状语从句时间状语从句主要由when, while, as, before, till(until); once, by the time, as soon as, no sooner…than和hardly…when及名词词组the moment等引导。
1）when当…的时候，强调特定时间。
e.g.When spring comes, he feels like a trip.When he was eating his breakfast, he heard the doorbell ring.2）while当…的时候，表示时间的一段，而不是一点，从句用持续性动词。
e.g.While he was eating his breakfast, his brother was still sleeping.My parents came back home, while I was watching TV.We must strike while the iron is hot.※while还可表示“然而，但是”，表示前后对照，说明情况相反。
e.g.Tom is very outgoing, while Jane is shy and quiet.Some people waste food while others haven’t enough.3）as多用在口语中，强调“同一时间”或“一前一后”，有时还有“随着”的含义。
高中英语状语从句讲义
高中英语状语从句讲义一、地点状语从句地点状语从句通常由where, wherever 引导。
Where I live there are plenty of trees.Wherever I am I will be thinking of 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，但在（just）as…so…结构中位于句首，这时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.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。
"仿佛……似的"，"好像……似的".They completely ignore these facts as if （as though） they never existed. 他们完全忽略了这些事实，就仿佛它不存在似的。
He looks as if （as though） he had been hit by lighting. 他那样子就像被雷击了似的。
It looks as if the weather may pick up very soon. 看来天气很快就会好起来。
三、原因状语从句比较because, since, as和for：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。
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用介词短语来代替状语从句
1.While it is being compacted, considerable lateral横(向)的pressure
is exerted by concrete.
2.If pressure is constant, gases will expand when heated.
3.If values of W are small, the impedance of the capacitor is large
relative to R.
4.When temperatures are greater than 60℃，this equation does not
apply.
5.While it is being compacted, considerable lateral pressure is
exerted by concrete.
•During compacting/compactification,(a) considerable lateral pressure is exerted by the concrete.
•At/For/With constant pressure, gases will expand when heated.•For/With small values of ω,the impedance of the capacitor is large relative to R.
•At/With temperatures greater than 60oC, this equation does not apply.
名词短语代替状语从句
6.If the diode is analyzed physically, it can be shown that
7.In this case electrons will possess more energy, so that the
brightness of the spot can be increased.
A physical analysis of the diode shows that
•In this case electrons will possess more energy, thus increasing the brightness of the spot.
1.Some water which has been distilled some distilled water
2.A bridge which has been incorrectly designed an incorrectly
designed bridge
3.The substances which are not known the unknown substances
4.A problem which has still not been solved an unsolved problem
5.Satellites which are made by man man-made satellites
6.Signals which are modulated in amplitude振幅amplitude-modulated
signals
7.Steel which is plated with chromium铬chromium-plated steel
8.Pumps which are driven by wind wind-driven pumps
9.The instruments which are used the instruments used
10.The number of mistakes which have been found the number of
mistakes found
11.The new cars which a used for racing the new racing cars
12.Paper which is used for drawing drawing paper
13.Bodies which fall freely freely falling bodies
14.A country which produces oil an oil-producing country
15.The point at which it boils the boiling point
16.Material is tested in this way material so/thus tested
17.Paper which has blue lines blue-lined paper
18.A saw which has wide teeth a wide-toothed saw
19.A triangle which has acute angles an acute-angled triangle
将下面句子翻译虚拟语气
若没有半导体(semiconductor),卫星通讯(satellite communications)就不可能了。
②我们本来也可以用定理(theorem)(6)来导出(derive)式(5)
③一旦出现什么情况,尽快让我们知道。
④数字(digital)设计人员(designer)很好地了解布尔代数(Boolean algebra)是十分必
要的。
⑤有人建议在太空制造药物(drug).
⑥这来自于输出要稳定(stable)这一需要(necessity)。
⑦其条件是(x-a)为一个根(root)。
⑧这根传输线(transmission line)的作用好像它是开路(open-circuit)似的。
⑨我们周围的一切东西,无论是空气、水还是木头(wood),都是物质
1 Without semiconductors, satellite communications would be impossible.
2 We could also have used Theorem (6) to derive Eq. (5).
3 Should anything happen, let us know as soon as possible.
4 It is quite essential that digital designers (should) have a good knowledge of Boolean algebra.
5 It is suggested that drugs be made in space.
6 This comes from the necessity that the output be stable.
7 Its condition is that (x–a) be a root.
8 This transmission line acts as if it were open-circuit.
9 Everything around us, be it air, water or wood, is matter.
名词化结构主语
1.If the thickness of the lagging（绝热材料）is increased, it will
reduce the heat losses.
2.If machines are tested by this method, there will be some loss of
power.
3.If the temperature rises by 50℃, it would result in a in Zener
voltage of 3.75%.
4.If these listings are studied , it will greatly help the programmer
in finding any errors made in writing the program.
5.If the diode（二极管）is physically analyzed, it will be shown that
the current and voltage are related by the following equation •An increase in the thickness of the lagging will reduce the heat losses.
•The testing of machines by this method will entail/result in some loss of power.
• A temperature rise of 50oC [OR: A rise in/of temperature by 50oC] would result in a change in Zener voltage of 3.75%.
• A study of these listings will greatly help the programmer in
finding any errors made in writing the program.
• A physical analysis of the diode shows that the current and voltage are related by the following equation.。