21世紀(jì)科技英語.上冊

前言

　　國家教育部頒發(fā)的《大學(xué)英語教學(xué)大綱》對大學(xué)英語的后續(xù)課程——專業(yè)英語提出了明確的要求?！洞缶V》將專業(yè)英語規(guī)定為繼大學(xué)英語四級之后的一門正式課程。大學(xué)英語四、六級階段的教學(xué)主要側(cè)重于傳授語言基礎(chǔ)知識與培養(yǎng)基本的語言技能，而能否使學(xué)生的語言知識轉(zhuǎn)化成較強(qiáng)的專業(yè)應(yīng)用能力，則在很大程度上取決于英語后繼課程的教學(xué)是否成功。因此，提高學(xué)生的英語應(yīng)用能力，已成為各高等院校共同面對的課題?！　∪欢趶钠胀ㄓ⒄Z向?qū)I(yè)英語的過渡階段，當(dāng)前高校學(xué)生尤其是理工科大學(xué)生仍缺乏一套可以反映近年來世界科學(xué)信息的系統(tǒng)教材，我們特此編寫《21世紀(jì)科技英語》，旨在提供一種通用性強(qiáng)、便于理工科各專業(yè)使用的教材。　　本書的選材以近年來發(fā)表的英文科普文章為主，有些直接由因特網(wǎng)上下載。我們注重趣味性、信息性、可思性和前瞻性，同時(shí)也注重語言的規(guī)范性和文體的多樣性。語言富有科技英語的語言特色，含有豐富的通用與專業(yè)科技英語詞匯和科技英語語法結(jié)構(gòu)。語言地道、措辭簡潔，難度略高于大學(xué)英語四級水平。內(nèi)容廣泛，涉及領(lǐng)域既包括了理、工、醫(yī)、農(nóng)等常用的基礎(chǔ)類學(xué)科，又緊扣當(dāng)前科技最新的技術(shù)成果和未來的科研方向，如生命科學(xué)、數(shù)字電路、基因工程、納米技術(shù)等。使用對象為理工科高年級學(xué)生或廣大科研人員?！　∪珪卜稚?、下冊，共有20個(gè)單元。每單元分TextA和TextB。TextA為精讀，文章后面配有練習(xí)。我們編寫時(shí)盡量使其形式新穎、實(shí)用，有利于達(dá)到提高專業(yè)英語應(yīng)用能力之目的。TextB為泛讀，每篇文章均有詳細(xì)注解，有助于同學(xué)們課外自習(xí)。此外，本書還摘錄了一些有關(guān)科技工作者如何書寫科技論文、口頭進(jìn)行科技報(bào)告的技巧與方法以及科技英語方面文體風(fēng)格的短文，語言風(fēng)趣、幽默。相信研修本教程的學(xué)員定有耳目一新的感覺。

內(nèi)容概要

　　《21世紀(jì)科技英語》旨在幫助大學(xué)生完成從基礎(chǔ)英語到專業(yè)英語的過渡，從而提高其在實(shí)際生活中的英語應(yīng)用能力?！?1世紀(jì)科技英語》的選材以科普文章為主，內(nèi)容涵蓋理、工、醫(yī)、農(nóng)等基礎(chǔ)類學(xué)科，同時(shí)緊扣當(dāng)前科技發(fā)展的前沿成果和科研方向，是一套為理工科大學(xué)生設(shè)計(jì)的通用性強(qiáng)、使用面廣的專業(yè)基礎(chǔ)英語教材。本教材分上、下兩冊，可供一年使用。

書籍目錄

Unit 1Text A Bill Gates Speech to Tsinghua University （12 December, 1997）Text B US Plans Large Funding Boost to Support Nanotechnology BoomSTYLISTICS Features of EST in Style and Structure （1）Unit 2Text A Information Management： Definitions and Some Aspects of ItText B CGS-Unit SystemUnit 3Text A Genetic EngineeringText B Introduction to the Human Genome ProjectSTYLISTICS Features of EST in Style and Structure（2）Unit 4Text A The Development of Mobile Communications in Cellular PhonesText B Practical Electric Units and the Giolgi ProposalUnit 5Text A How IC Products Are Made?Text B The Metric ConventionSTYLISTICS Grammatical Features of EST.. Modal Verbs & Post-modifiersPractice Exercise ⅠUnit 6Text A Major Research Areas in Physics TodayText B The Significance of Measurement and Its Physically DevelopingUnit 7Text A Computer Crime —— Congress vs. Computer CrimeText B The International Bureau of Weights and MeasuresSTYLISTICS Grammatical Features of EST. Voice & MoodUnit 8Text A The Top 10 Innovative Products for 2006Text B The Bioinformatics Gold RushUnit 9Text A GPSText B The Greatest Extinction Gets GreaterSTYLISTICS Grammatical Features of EST. TenseUnit 10Text A The Lamb That RoaredText B Dick WhitcombPractice Exercise ⅡKey to ExercisesGlossary

章節(jié)摘錄

　　2. For a long time, men thought that atoms were indivisible. You can break molecules down into atoms. But that, they said, is as far as you can go. You can take some of the electrons from an atom, but the core, or nucleus, of the atom is unbreakable, they explained.　　3. As men pushed their studies of the atom further, however, they realized that this is untrue. For some atoms may throw off protons and change from one element to another. For instance, an atom of radium, which has 88 protons in its nucleus, may undergo spontaneous change. It will emit 6 protons in a series of steps, to change to lead. During these steps, the radium atom also emits a great deal of energy in the form of radiation and heart. Only a few elements are capable of changing to different elements in this manner.　　4. On the other hand, elements can also be changed by the addition of moreprotons to their nuclei. For instance, we mentioned above that men havecreated a whole series of new elements by bombarding atoms uranium andother heavy elements with nuclear bullets. Such bombardments can also beused to "smash" atoms, or break them apart. In either case, whenever at-oms are changed, energy is released. This release of energy, of course, isthe basis of atomic energy.

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