本书科学、有趣地介绍了自然科学中最基本的内容和最新的发展前 沿，包含生物学、化学、物理学、地理学、生态学、太空和信息学等内 容，图文并茂。课文主要选自原版教材、专著、文献、托福、雅思和美国 之音(VOA)最新报道等。本书共有5章（chapter),每章分3部分（part )， 第一部分为一般读物，第二部分为高级读物，第三部分为该学科发展前沿 的VOA最新报道。每部分含若干单元（unit),每个单元后都列出专业术语/ 生疏单词和词组（New Words and Expressions),并注有国际音标（美音) 和双语（英语和汉语）解释，便于读者自学。每章的第二部分后附有练习 题（附录一为其答案)，利于提高学习效率。
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目录
目录 Chapter One Biology Part One General Reading Materials3 Unit 1 The Fundamental Concepts and Principles of Biology 生物学的基本概念和原理3 Unit 2 Test-tube Babies 试管婴儿5 Unit 3 How much Do You Know about Bacteria?你对细菌知道多少？ 9 Unit 4 The Legendary of Tea 茶的传奇13 Unit 5 The Human Genome Project (HGP)人类基因组计划16 Unit 6 Genetically Modified Organisms (GMOs)转基因生物19 Unit 7 DNA—the Secret of Life脱氧核糖核酸——生命的秘密24 Unit 8 The Immune System and Response 免疫系统和免疫反应28 Unit 9 Photosynthesis 光合作用32 Part Two Advanced Reading Materials37 Unit 1 The Circulatory System of Trees 树木的循环系统37 Unit 2 Exotic and Endangered Species 外来的和濒危的物种40 Unit 3 Thermoregulation 体温调节44 Part Three Biology News from VOA48 Unit 1 Where Do We Come from?我们来自哪里？ 48 Unit 2 Scientists Are Getting Closer to Finding AIDS Cure 科学家们正逐渐发现艾滋病治疗法50 Unit 3 Scientists Discover Secrets for Tastier Tomatoes 科学家发现番煎更美味的秘密52 Unit 4 American Scientists Work on Printing of Living Tissue Replacements 美国科研人员致力于活体组织替代品的打印54 Unit 5 Ebola Threatens Millions with Food Insecurity 埃博拉病毒带来的粮食不安全威胁着的数百万人56 Chapter Two Chemistry Part One General Reading Materials61 Unit 1 Chemistry: A Science for All Reasons 化学：作为一门科学的各种理由61 Unit 2 Acids and Bases 酸和碱63 Unit 3 The Discovery of Penicillin 青霉素的发现65 Unit 4 Alfred Bernhard Nobel 阿佛列？伯纳德？诺贝尔67 Unit 5 Chemicals and Medicines from the Sea 来自海洋的化学品和药品70 Unit 6 Dyes and Pigments 染料和颜料73 Unit 7 Matter, Element, Compound and Mixture 物质，元素，化合物和混合物76 Unit 8 Chemical Bonds 化学键80 Part Two Advanced Reading Materials85 Unit 1 Organic Compost 有机月巴料85 Unit 2 Artists’ Use of Oil and Acrylic Paint艺术家使用的油和丙婦酸涂料88 Unit 3 Electrides Are the First Examples of Ionic Salts 电子化合物是第一个离子盐例子90 Part Three Chemistry News from VOA93 Unit 1 Remember Your Chemistry Classes?还记得你的化学课吗？ 93 Unit 2 Turning Cigarette Butts to Batteries 把烟头变成电池95 Unit 3 Kitchen Chemistry: The Science of Herbs and Spices 厨房化学：药草和香料的科学97 Unit 4 A Silent Killer: Carbon Monoxide Poisoning 一个沉默的杀手：一氧化碳中毒101 Chapter Three Physics Part One General Reading Materials107 Unit 1 Energy Quality 能源质量107 Unit 2 Effects of Ionizing Radiation 电离辖射的影响109 Unit 3 Rutherford’s Model 卢瑟福的模型111 Unit 4 Interference of Light Waves 光波的干涉113 Unit 5 Physical and Chemical Properties and Changes 物理和化学属性及变化116 Unit 6 Introduction to Electromagnetics 电磁学导论119 Unit 7 DVD Technology and Application DVD 技术及其应用122 Part Two Advanced Reading Materials127 Unit 1 Autofocus Glasses under Development 开发中的自动对焦眼镜127 Unit 2 Three Levels on the Quantum Ladder 三个层次的量子阶梯130 Unit 3 Geothermal Energy 地热能量134 Part Three Physics News from VOA138 Unit 1 Hoverboards Ignore Gravity Hover 板忽略重力138 Unit 2 Robot Takes Cues from Deadly Rattlesnakes 偷师致命毒蛇的蛇行机器人140 Unit 3 Scientists Develop a Robot That Can Assemble Itself 科学家开发可以自身组装的机器人142 Unit 4 Is There a Better Way to Track Passenger Planes?有更好的方法追踪客机吗？144 Unit 5 Hot Tech Ideas Seek Investors at San Francisco Expo 旧金山世博会上热技术设想寻求投资者146 Unit 6 Scientific and Engineering Skills Lead to Inventions That Save Lives 科学和工程技能带来拯救生命的发明148 Chapter Four Geography and Ecology Part One General Reading Materials155 Unit 1 Finding Fossil Man 发现化石人155 Unit 2 The Past Life of the Earth 地球上的昔日生命157 Unit 3 The Modem City 现代城市159 Unit 4 World Climate Patterns 世界气候模式161 Unit 5 Exploring the Sea-floor 海底勘探163 Unit 6 Earth’s Surfaces Are Always Moving 地球的表面总是在移动165 Part Two Advanced Reading Materials170 Unit 1 The Greenhouse Effect and Global Warming 温室效应和全球变暧170 Unit 2 Geology and Landscape 地质及其景观173 Unit 3 Factors That Influence Tides 影响潮汝的因素176 Unit 4 Rising Sea Levels正在上升的海平面179 Unit 5 Symbiotic Relationships 共生关系183 Part Three News of Geography and Ecology from VOA187 Unit 1 Earth’s Ozone Layer Shows Signs of Recovery 地球臭氧层显示复苏的迹象187 Unit 2 How Does One Find a Meteorite?如何找到隔石？ 189 Unit 3 Listening to Sounds一from the Earth and beyond 从地球上听声音192 Unit 4 WHO: Millions Die Every Year from Air Pollution 世界卫生组织：每年有数百万人死于空气污染197 Unit 5 Grassroots Activists Receive Goldman Environmental Prize 草根人士荣获戈德曼环境奖202 Chapter Five Space and Informatics Part One General Reading Materials209 Unit 1 Space Exploration 太空探索209 Unit 2 Silicon Valley 桂谷211 Unit 3 Predicting the Future 预测未来213 Unit 4 The Code of Universe 宇宙的代码215 Part Two Advanced Reading Materials221 Unit 1 Morse Code 莫尔斯电码221 Unit 2 E-book 电子书224 Unit 3 Spectacular Saturn 壮观的土星229 Part Three News of Space and Informatics from VOA233 Unit 1 Internet-Connected Refrigerators and Stoves?联网冰箱和炉子？ 233 Unit 2 NASA Spacecraft, Dawn, Close to Reaching a “Dwarf Planet” NASA 的航天器——黎明，接近一个“矮行星” 235 Unit 3 NASA’s MAVEN Arrives on Mars NASA 的 MAVEN 到达火星237 Unit 4 Internet, Technology Offer New Tools for Journalists 互联网技术为记者提供新工具240 Unit 5 How to Weather a Solar Storm 如何抵御太阳风暴242 Unit 6 New Brain-Image Database Could Assist Chronic Pain 新的脑图像数据库可以帮助慢性疼痛的治疗244 Appendix I Answers to the Questions250 Appendix II References252
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