下载本文档
版权说明:本文档由用户提供并上传,收益归属内容提供方,若内容存在侵权,请进行举报或认领
文档简介
1、CAMBRIDGE IELTS 9 NOTE 原文真题Reading Passage 1William Henry PerkinThe man who inventedsynthetic dyesWilliam Henry Perkin was born on March 12, 1838, in London, England.As a boy, Perkin's curiosity prompted early interests in the arts, sciences,photography, and engineering. But it was a chance stum
2、bling upon a rundown, yet functional, laboratory in his late grandfather 'hosme that solidified the young man' s enthusiasm for chemistry.As a student at the City of London School, Perkin became immersed in the study of chemistry. His talent and devotion to the subject were perceived by his
3、teacher, Thomas Hall, who encouraged him to attend a series of lectures given by the eminent scientist Michael Faraday at the Royal Institution. Those speeches fired the young chemist ' s enthusiasm further, and he later went on to attend the Royal College of Chemistry, which he succeeded in ent
4、ering in 1853, at the age of 15.At the time of Perkin' s enrolment, the Royal College of Chemistry washeaded by the noted Germna chemist August Wilhelm Hofmann. Perkin'sscientific gifts soon caught Hofmann' s attention and, within two years, hebecame Hofmann 's youngest assistant. No
5、t long after that, Perkin made the scientific breakthrough that would bring him both fame and fortune.At the time, quinine was the only viable medical treatment for malaria. The drug is derived from the bark of the cinchona tree, native to South America, and by 1856 demand for the drug was surpassin
6、g the available supply. Thus, when Hofmann made some passing comments about the desirability of a synthetic substitute for quinine, it was unsurprising that his star pupil was moved to take up the challenge.During his vacation in 1856, Perkin spent his time in the laboratory on the top floor of his
7、family s house.'He was attempting to manufacture quinine from aniline, an inexpensive and readily available coal tar waste product. Despite his best efforts, however, he did not end up with quinine. Instead, he produced a mysterious dark sludge. Luckily, Perkin scientific's, Perkin sawtraini
8、ng and nature prompted him to investigate the substance further. Incorporating potassium dichromate and alcohol into the aniline at various stages of the experimental process, he finally produced a deep purple solution. And, providing the truth of the famous scientist Louis Pasteur 's words chan
9、ce favours only the prepared mind potential of his unexpected find.Historically, textile dyes were made from such natural sources as plants and animal excretions. Some of these, such as the glandular mucus of snails, were difficult to obtain and outrageously expensive. Indeed, the purple coulour ext
10、racted from a snail was once so costly that in society at the time only the rich could afford it. Further, natural dyes tended to me muddy in hue and fade quickly. It was against this backdrop that Perkin discovery was made.Perkin quickly grasped that his purple solution could be used to colour fabr
11、ic, thus making it the world 'fsirst synthetic dye. Realizing the importance of this breakthrough, he lost no time in patenting it. But perhaps the most fascinating of all Perkin' s reactions to his find was hisnearly instant recognition that the new dye had commercial possibilities.Perkin o
12、riginally named his dye Tyrian Purple, but it later became commonly known as mauve (from the French for the plant used to make the colour violet). He asked advice of Scottish dye works owner Robert Pullar, who assured him that manufacturing the dye would be well worth it if the coulour remained fast
13、 (i.e. would not fade) and the cost was relatively low. So, over the fierce objections of his mentor Hofmann, he left college to give birth to the modern chemical industry.With the help of his father and brother, Perkin set up a factory not far from London. Utilising the cheap and plentiful coal tar
14、 that was an almost unlimited byproduct of London' s gas street lighting, the dye works beganproducing the world 'fsirst synthetically dyed material in 1857. The company received a commercial boost form the Empress Eugenie of France, when she decided the new colour flattered her. Very soon,
15、mauve was the necessary shade for all the fashionable ladies in that country. Not to be outdone, England' s Queen Victoria also appeared in public wearinga mauve gown, thus making it all the rage in England as well. The dye was bold and fast, and the public clamoured for more. Perkin went backto
16、 the drawing board.Although Perkin 'fasme was achieved and fortune assured by his first discovery, the chemist continued his research. Among other dyes he developed and introduced were aniline red (1859) and aniline black (1863) and, in the late 1860s, Perkin' s green. It is important to not
17、e that Perkinsynthetic dye discoveries had outcomes far beyond the merely decorative. The dyes also became vital to medical research in many ways. For instance, they were used to stain previously invisible microbes and bacteria, allowing researchers to identify such bacilli as tuberculosis, cholera,
18、 and anthrax. Artificial dyes continue to play a crucial role today. And, in what would have been particularly pleasing to Perkin, their current use is in the search for a vaccine against malaria.甲 简单单词居然不解其中玄机。late, his late grandfather 's home . 已故的。gift.Perkin 's scientific gifts soon cau
19、ght Hofmann 's attention. 天才bark. The drug is derived from the bark of the cinchona tree.树皮。solution . he finally produced a deep purple solution. 溶液fast .the dye would be well worth it if the colour remained fast and the cost was relatively low. 牢固的,紧紧的。乙 其他生词 (逐个查阅的,太多了啊) 1.synthetic 合成的,人造的,假
20、的文献。统一体。thesis, n . 毕业论文,论题,论 综合之意。2.curiosity n. 好奇心,稀奇的人事物。 shop古玩店。 drive, 好奇驱动力Synth ,n. 综合者,【电】合成器。Syntheses.n . 【化】合成,【语】综合;综合体,结合,【医】接合。【逻 辑】综合法,语词的合成,【物】合成,综合;Syn, same 大概有统一,同一类的意思; 点,命题之意。同一论题的结合,就有了合成,Curiosity kill the cat.3.stumble upon. 偶尔发现。Stumble : V .绊倒,犯错误,蹒跚,无意中发现。N.绊倒,错误。Stumble
21、block 绊脚石 stumble on 偶然遇到,碰巧找到Stumble along 东倒西歪地走。 Stumble toward 跌跌撞撞地走向Tumble .v. 暴跌,倒塌,跌倒,翻滚。弄乱,明白,突然发现。Tumbling. n. 摔跤,翻跟头。 Adj. 斜的。Tumbler.n .不倒翁,杂技演员,平底无脚酒杯,锁的制动栓。Umbl.adj.脐的,控制用的,n.地面线缆和管道。脱落插头。Tum 肚子,胃,Tummy 【adj 英国方言 空的,中空的。 口语】 肚子,【非正式】 胃Tumour. 【英】肿瘤。 Tumor 【美】肿瘤Benigh tumour. 良性肿瘤Benigh
22、: adj. 温和的,仁慈的,善良的,有利于健康的,【医】良性的4. enthusiasm 热情,热心,热衷的事物。Enthuse . 使热心,充满热情地说。immerse v.浸没,施浸礼,沉迷中,陷入。chemistry.n. 化学。物质的化学组成、性质。化学作用。神秘的变化过程。Che ,可以看作Change. Mistry ,近似于mistery,神秘的。Mist,雾,模糊,神 秘。Misty,有雾的,模糊的,朦胧不清的。prompt adj. 迅速的,敏捷的,立刻的.V激情,促进,推动,提示,vi,提示,提示的内容n.付款的期限9 devotion n. 虔诚,献身,奉献,热爱,专心
23、,热心。Devote .V致力于,奉献给,把专用于。 Vote.选举权,投票,选举。10. p erceive .v.注意到,觉察到,认为,理解。11. eminent .著名的,卓越。Distinguished prominentPro n能手,行家,正面,职业选手,赞成票,代替,脯氨酸。老手。Adj专业的,赞成的,体育运动。Adv. 正面地,赞成地。Prep赞成,为的,按的;随,视 。Process , processing12 .en rolme nt n.登记或者注册,入学,入伍,入会。13. breakthroug. 突破,突破性进展。14. quinine. 奎宁,金鸡纳霜,治疗疟
24、疾的药。奎宁,在秘鲁语中是“树皮” 的意思。1 5.viabl e .可行的,能生存的。16.treatment 治疗,对待,处理17 cinchona n. 金鸡纳树 (皮)18. surpass vt. 超越,胜过19. passing comment 信口的评论。passing n.通过,逝去adj,经过的,短暂的,及格的,adv.非常。20. desirability.n. 称心如意的人或物,有利条件。21. substitute. n.代替品,代用品,vt代替,用代替,代之以。sub潜艇,替代的。替代,转包合同21 take up v拿起,开始,从事,吸收,接纳,占去,继续做,做某事
25、消遣22 vacation n.假期,度假,腾出。Vi,度假23 aniline n 苯胺, adj 苯胺的,阿尼林油( 音译好记忆)24. tar .n. 焦油,柏油。【口】水手, vt 涂以焦油25. sludge .n泥泞,淤泥,泥状雪。沉淀物26. substance 实质,物质,财产,内容,重要性27. potassium 钾 K28 dichromate. N.重铬酸钾。Chromate .铬酸钾。Di,重,双,两个?29. Excretion n.排泄物Excrete .v排卡泄,分泌30 gla ndular adj,腺(状)的,起腺体功能的 Gland 腺31.mucus 粘液,黏液32 snail. 蜗牛,慢吞吞的人物33 outrageous adj . 过分的,骇人的。Rag
温馨提示
- 1. 本站所有资源如无特殊说明,都需要本地电脑安装OFFICE2007和PDF阅读器。图纸软件为CAD,CAXA,PROE,UG,SolidWorks等.压缩文件请下载最新的WinRAR软件解压。
- 2. 本站的文档不包含任何第三方提供的附件图纸等,如果需要附件,请联系上传者。文件的所有权益归上传用户所有。
- 3. 本站RAR压缩包中若带图纸,网页内容里面会有图纸预览,若没有图纸预览就没有图纸。
- 4. 未经权益所有人同意不得将文件中的内容挪作商业或盈利用途。
- 5. 人人文库网仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对用户上传分享的文档内容本身不做任何修改或编辑,并不能对任何下载内容负责。
- 6. 下载文件中如有侵权或不适当内容,请与我们联系,我们立即纠正。
- 7. 本站不保证下载资源的准确性、安全性和完整性, 同时也不承担用户因使用这些下载资源对自己和他人造成任何形式的伤害或损失。
最新文档
- 强夯合同范例
- 甲供动力合同范例
- 事业部合伙合同范例
- 奋达物流合同范例
- 物流公司和客户合同范例
- 天津滨海汽车工程职业学院《生态学科前沿进展》2023-2024学年第一学期期末试卷
- 如家酒店装修合同范例
- 园林造价合同范例
- 渣土车辆购买合同范例
- 东方航空合同范例
- 2024年国家工作人员学法用法考试题库及参考答案
- 中国成人心肌炎临床诊断与治疗指南2024解读
- 期末(试题)-2024-2025学年人教PEP版英语六年级上册
- 创新创业创造:职场竞争力密钥智慧树知到期末考试答案章节答案2024年上海对外经贸大学
- 医院检验科实验室生物安全程序文件SOP
- 三创赛获奖-非遗文化创新创业计划书
- 河北省石家庄市各县区乡镇行政村居民村民委员会明细
- (完整版)建筑力学(习题答案)
- -脑梗塞的最佳治疗中药方剂
- N掺杂TiO2纳米管的合成及光催化性能研究
- 二沉池设计说明书
评论
0/150
提交评论