四级时文阅读 高科技新视野PDF电子书下载

Blue Eyes ,Big Earplugs:Bad Hearing? 1

听力的秘密 1

New Element Leaves Lightweights Behind 4

最重的元素 4

The Brain s Humor Zone 8

大脑幽默区 8

Depleting the Earth 10

枯竭的地球 10

A Propellant-free Propulsion System 14

免费将火箭送上太空 14

Restore a Youthful Appearance 18

青春再现 18

New Tools to Fight Excruciating Agony 23

战胜剧痛的新招 23

射线枪，魅力无比 28

Ray Gun Freezes Victims Without Causing Injury 28

Computer Viruses 33

从嬉戏到灾难 33

Forward Into Time 40

挑战时间“双向性” 40

Biotech Breeds Mistrust 46

基因食品 前程未卜 46

火箭家族的新成员 50

Little Rockets,Cheap 50

Life With Half a Brain 54

半脑生存 54

Building Artificial Life 60

重组生命 60

Space Tours Not Far Away 64

遨游太空 64

Death by Carbon Dioxide 68

Nyos湖的爆炸——凶手再现 68

星空闪烁 74

The Dazzle of a Distant Star 74

Goodbye,Dolly 80

再见了，多莉 80

Should China Clone Pandas? 83

克隆技术能拯救大熊猫吗？ 83

Theatres Prepare to Go Digital 88

走向数字化的影院 88

赛场遥控 92

Replay Sets for Referees 92

Shy Shoppers Can Go Trendy Online 96

在线购物，美丽众人 96

Solving the Secret of Genius 101

天才的秘密 101

Telecommunications Are Revolutionizing the World 111

静候电信革命 试看世界剧变 111

Faster Than a Speeding Bullet 128

磁性火车 一“鸣”惊人 128

智能化走遍每一个角落 136

Future Digs 2001 136

A Fate Worse than Death? 144

劫后余生 144

Hunting New Earths 151

寻找新生命 151

The Puzzle of Flutter and Tumble 159

落叶飘舞为哪般 159

What Can Be Done About Junk E-mail 169

网络“肿瘤”——垃圾邮件 169

Fire and Rain 180

火与雨 180

Apocalypse Not 192

危机四伏 192

The Future Technology in Teaching 201

未来的课堂 201

Getting Ready for the 21st Century 210

挑战21世纪 210