状语从句

Be Careful about Cloning

谨慎对待克隆

After a series of initial experiments and corrections, the scientist’s hard work paid off when the twin clone turkeys were hatched with normal feather and claws. This breakthrough possibly enabled people to bring their adored pets back to life. However, it bothered him from time to time that their health was in poor condition because they were unable to resist illnesses. This drawback cast him down. Merely 2 weeks later, the clones and their carrier died, which struck frustration into his heart. He retired before he attained his ambition and became a member of an opera chorus to relieve his depression.

Shortly afterwards, the media published a conservative argument objecting to cloning owing to moral problems, and suggested the constitution include compulsory regulations to forbid obtaining commercial profits from cloning.

When interviewed, the scientist stared at the decorations on the ceiling, thinking for a while, and then said, “I’m not in favour of any arbitrary assumption, but undertaking cloning does differ from the straightforward procedure of making loafs out of(用。。。材料) flour. Until we accumulate enough exact knowledge, any practice is in vain and is bound to fail. Altogether, being more careful is reasonable or we may walk into a side road.”

initial . 最初的，开始的

pay off 取得成功

hatch.孵化，孵出，

clone . 克隆

turkey 火鸡

normal正常的

feather 羽毛

claw爪子

breakthrough .突破（名词）

adore 崇拜，喜欢

bring sth to life 使回复生机

from time to time 不时偶尔

resist v.抵抗，抗拒，

drawback n.缺点，劣势，

cast down 沮丧，使沮丧cast 投抛

merely仅仅，只不过

strike 动词名词.罢工，击，攻击，打struck过去式

frustration n.挫折，失败，挫败frustrated形容词. 沮丧的，失败的retire使）退休

attain . 获得，到达，实现

ambition . 野心，雄心，抱负，ambitious有野心的，有雄心的，chorus合唱团

relieve动词. 减轻，缓解relief名词

afterwards . 后来，以后

conservative形容词. 保守的，守旧的，因循守旧的，(式样等) 保守的argument.争论，争吵

moral adj.道德的，道义上的

constitution n.建立，组成，，宪法

compulsory义务的，强制的，强迫的

regulation名词. 规则，法规

commercial . 贸易的，商业的，赢利的，

profit名词. 利润，收益

decoration名词. 装潢，装饰品，decroate 动词

ceiling天花板

in favour of 支持，赞成

arbitrary adj.随意的，任性的，随心所欲的，主观的

assumption名词. 假设，假定，

undertake动词. 承担，从事，负责

straightforward adj.直截了当的，坦率的，明确的

procedure n.程序，手续，工序

flour名词. 面粉

accumulate动词. 积累，积聚，

in vain白费地，徒劳无益地

be bound to 注定

Altogether副词. 一共，全部，总而言之

reasonable形容词. 公平的，合理的

在最初一系列的实验和修正之后，科学家的辛苦工作终于取得了成功，一对双生的克隆火鸡孵化出来，羽毛和爪子都很正常。这一突破或许能让人们使他们喜爱的宠物死而复生。然而，使他不时地烦恼的是，因为它们无法抵抗疾病，使得它们的健康状况极差。这个缺点让他很沮丧。仅仅过了2个星期，克隆体和母体都死亡了，这使他内心里充满了挫折，他也因此在达到自己目标前就退休了，并选择加入歌剧合唱团来减轻消沉的感觉。

之后不久，媒体就因为道德问题而发表了反对克隆的保守论点，并且建议宪法应该包括强制性的法规禁止通过克隆获得商业利益。

当被采访时，科学家盯着天花板上的装饰物思考了一会儿，说：“我不赞成任何任意的假设，但是从事克隆与用面粉制作面包的简单过程确实不大相同。在我们积累了足够的准确知识前，任何实际操作都是徒劳无功的，注定会失败。总而言之，更加谨慎地对待克隆是合理的，否则我们或许会误入歧途。”

状语从句中的省略

一般说来省略现象多出现在下列五种状语从句中：由when ,while ,as ,before, after , till, until, once等引导的时间状语从句;由whether ,if , unless 等引导的条件状语从句;由though , although ,even if ,whatever等引导的让步状语从句;由as ,than 等引导的比较状语从句;由as, as if , as though 等引导的方式状语从句。上述状语从句在省略时应遵循下面原则：

1) 当状语从句的主语与主句的主语一致时，可以省略状语从句的主语和系动词be，这时从句中可出现如下结构：(1) 连词(as, as if , once)+ 名词; (2) 连词( though, whether , when)+形容词;(3) 连词(whether, as if ,while )+介词短语;(4) 连词(when , while , though )+ 现

在分词; (5) 连词(when ,if ,even if ,unless ,once ,until, than , as ) + 过去分词; (6) 连词(as if ,as though ) + 不定式。如：

a) Once (he was)a worker ,Pang Long now becomes a famous singer .庞龙曾经是个工人，现在变成一位著名的歌手。

b) Work hard when (you are) young ,or you'll regret.趁年轻要努力学习，要不然你会后悔的。

c) He looked everywhere as if (he was)in search of something .他到处看似乎在找什么东西。

d) While (he was) holding talks with President Hu Jintao ,US President George W. Bush thanked China for its important role in the Six-Party Talks.美国总统布什在与胡锦涛主席会谈时，感谢中国在六方会谈中起的重要作用。

e) The exhibition is more interesting than (it was) expected .这次展览比被预料的有趣的多。

f) Olympic gold medallist hurdler Liu Xiang opened his lips as if (he were) to speak。奥林匹克金牌获得者跨栏运动员刘翔张开嘴好像要说什么。

注意：

1) 当从句的主语和主句的宾语一致时，间或也有这样的省略，如：

Her father told her to be careful when (she was)crossing the street.当她过马路时父亲告诉

她要当心。

2) 当从句的主语是it，谓语动词中又含有系动词be 时，可以把it和系动词be一起

省略。此时构成连词(if , unless ,when , whenever)+形容词的结构。如：

Unless (it is) necessary ,you'd better not refer to the dictionary.如果没有必要，你最好不要

查字典。

原因状语从句的用法

原因状语从句的用法 原因状语从句表原因，以下逐一介绍高考中常见的原因状语从句的引导词： 1. because引导的原因状语从句一般放于主句之后， because表示直接原因，语气最强，最适合回答 why引导的疑问句。例如： I do it because I like it. 我做这件事是 因为我喜欢。 注意：“not ... because”结构中的not否定的是because引导的整个从句，有时也否定主句例如： The country is not strong because it is large. 国强不在大。I 2. since引导的原因状语从句一般放于主句之前表示已知的、显然的理由(通常被翻译成“既然”)，较为正式，语气比because弱。例如： Since you are free today, you had better help me with my mathematics. 既然今天你休息，你最好帮我补习数学。 注意： seeing (that)， now (that)， considering (that)， in that这几个词汇与since引导的原因状语从句意思相近，都表示“既然”。例如： Seeing (that) he refused to help us, there’s no reason that we should now help him. 他既然曾经拒绝帮助我们，我们现在没有理由要来帮助他。// Now (that) you are grown up, you should not rely on your parents. 既然你长大了，就不应该依靠你的父母了。// Considering (that) everyb ody is here, let’s begin our discussion. 既然大家都到了，我们就开始讨论吧。// In that he is ill, he feels unable to do it. 因为有病，他觉得做不了那件 事。注意： 1. considering 和 given 还可用介词。如： Considering his age, the little boy reads very well. 就他的年龄来说，这小孩读得 挺好的。 Given her interest in children, I am sure teaching is the right career for her. 考虑到她喜欢孩子, 我可以肯定教书是最适合她的职业。 2. 表示“因为”的连词不能与表示“所以”的 so 连用。如： 译：因为他病了，所以没有出席会议。 误：Because he was ill, so he didn’t attend the meeting. 正：He didn’t attend the meeting because he was ill. 正：He was ill so he didn’t attend the meeting 3. as 引导原因状语从句时表示附带说明的“双方已知的原因”，语气比since弱，较为正式，位置较为灵活(常放于主句之前)。例如：As it is raining, you’d better take a taxi. 既然在下雨，你最好乘出租汽车。// As you are tired, you had better rest.

(完整版)英语状语从句汇总整理版

英语中的九大状语从句 状语从句在主从复合句中修饰主句中的动词、形容词或副词等，按意义可以分为时间、地点、原因、目的、结果、条件、方式、比较、让步等状语从句。 一．时间状语从句。 通常由从属连词when, whenever, as, while, before, after, as soon as, till, until, since, once (一旦), hardly……when…, no sooner…….than…; 等引导。例如： The cyclist started just as the lights changed to green. Whenever we met with difficulties , they cam to help us. He didn’t leave his office until he had finished the day’s work. 应注意的问题 1．在时间状语从句中，通常要用动词的一般现在时态表示一般将来时态，用一般过去时态表示过去将来时态。但when 引导一般疑问句或名词性从句时不受上述语法规则的限制，因此，应该加以区分。例如： When China will enter WTO depends on the bilateral (双边的)joint efforts. Once you understand the rules of the game, you’ll enjoy it. 2.when , while, as 的不同用法。一般说来，当主、从句的动作是同时发生的事，三者可以换用。when 既可以引导一个持续动作，也可以引导一个短暂动作，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性的，强调主句和从句的动作同时发生，往往侧重主句和从句动作的对比；as 用于引导“在某行为的继续中发生某事”的“继续之行为”，所以多与过去进行时连用，翻译成“一边……一边……”或者表示动作的变化，翻译成“随着……”。 例如： I hope you’ll think of my words as/when/while you drive on the busy roads. When he realized it, the chance had been lost. When he came home, I was cooking dinner. I was fat when I was a child. He took a bath while I was preparing dinner. As I was walking down the street, an American asked me for the directions to the nearest station. He sang songs as he was taking a bath. As he gets older he gets more optimistic.

状语从句

龙文教育学科教师辅导学案 教师：冯婧学生：赵郭成时间：2011 年12月4日学段：13：00-15：00 高考状语从句 课题 1.让学生状语从句的用法 教学目标 高考状语从句的用法 重点、难点 熟练掌握做题方法 考点及考试要求 教学内容 课前练一练 21. Barack Obama, who came into _____ power on January20th,2009, was awarded _______ 2009 Nobel Peace Prize. A. the; the B. the;不填 C.不填；the D.不填；a 22. He _______all the qualities of a successful player. You name it, he’s got it. A. combines B. connects C. conveys D. unites 23. He often speaks of the trouble he _______to look after his sick mother. A. had B. found C. made D. took 24. Isn’t it amazing how the human body heals ______after an injury? A. himself B. him C. itself D. it 25. I’m not surprised that he became a writer. Even as a child he had a _______ imagination. A. clear B. cautious C. funny D. vivid 26. Nowadays in India, women with independent incomes are refusing to ______the traditional idea of marriage. A. submit to B. contribute to C. devote to D. subscribe to 27. –I was so happy to see the heavy rain last night and the air is much improved today. _Yes, but look what the rain ______ to the flowers. A. did B. was doing C. has done D. had done 28. Albert Einstein once said, “ People owe my success ______ my talents. Actually my success lies ______ my diligence.” A. to; on B. to; in C. with; in D. for; on 29. Edith has invented a device ______ can solve the problem of saving electricity. A. what she claims B. she claims it C. as she claims D. which she claims

原因状语从句-练习题及答案

原因状语从句练习题: 一、填入恰当的连词 1. I didn’t go to school yesterday _________ I was ill. 2. ________ everybody is here, let’s begin our meeting. 3. ________ you are in poor health, you should not stay up late. 4. I asked her to stay to tea, ________ I had something to tell her. 5. ________ all the passengers are here, why don’t we start at once? 6. Bill won’t make any progress ________ he doesn’t study harder than before. 7. He might have gone to bed, ________ the light went out. 二、改写句子,保持句意不变 1) The ship changed its course because there was a storm. The ship changed its course _______ _______ _______ _______. 2) Because he was ill, he didn’t go to school. He was ill, _______ he didn’t go to school. 3) He couldn't walk because his leg was broken. He couldn't walk ______ ______ his ______ leg. 4) I came back because it was raining heavily. I came back ______ ______ the ______ rain. 练习答案： 一、1.because 2.Since 3.As 4.because 5.Since 6.because 7.for

初中英语状语从句知识点总结

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状语从句解题技巧

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状语从句解题技巧(超强)及练习题(含答案)

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