《英语教程 理工科用 第4册》求取 ⇩

Lesson One2

Text：Can a Computer Think？2

Lesson Two11

Text：Star Wars—and Einstein11

Lesson Three21

Text：Are There Strangers in Space？21

Lesson Four35

Text：Noise and the Worker35

Lesson Five47

Text：Alfred Nobel—a Man of Contrasts47

Lesson Six61

Text：The Years of the Quies Sun61

Lesson Seven73

Text：A Visitor from the Past73

Lesson Eight85

Text：The Discovery of Radioactivity85

Lesson Nine100

Text：Transport in the Future：Air or Sea？100

Lesson Ten117

Text：Saving the Left-overs117

Lesson Eleven133

Text：A Robot about the House133

Lesson Twelve151

Text：Metals in the Electronic Age151

SUPPLEMENTARY READINGS170

ⅠWhy Read Faster？170

Ⅱ Introdtiction174

Ⅲ Filmless Cameras May Lead Next Boom in Pho-tography181

Ⅳ Interest Is Growing in Plastics That Can Con-duct Electricity185

Ⅴ The Age of the Sun188

Ⅵ Big Numbers and Iafinities192

Ⅶ Too Many People？200

Ⅷ Scientific Knowledge and the Young Scientist206

Ⅸ Gettysburg Address212

Ⅹ Dr．Bethune Speaks at the Opening of a New Army Hospital214

APPENDIXES219

APPENDIXⅠ220

1．Business Letters220

2．Abstracts224

3．Book Reviews226

4．Instructions to Experiments231

5．Laboratory Reports238

6．Instruction Manual250

APPENDIXⅡ260

Irregular Verbs260

APPENDIXⅢ261

Vocabulary261