Contents 1
Unit One 1
Text:In the Antarctic W．M．Smith 1
Section 1 Aids to Study 4
Section 2 General Exercises 10
Section 3 Reading Exercises 19
Section 4 Writing Exercises 32
Unit Two 36
Text:The'Killer Lake'of Cameroon S.Weisburd 36
Section 1 Aids to Study 41
Section 2 General Exercises 50
Section 3 Reading Exercises 60
Section 4 Writing Exercises 81
Text:The Unsinkable Titanic Compiled by the Edito rs of Reader's Digest 86
Unit Three 86
Section 1 Aids to Study 98
Section 2 General Exercises 109
Section 3 Reading Exercises 121
Section 4 Writing Exercises 131
Unit Four 135
Text:Who Am I？ Marya Mannes 135
Section 1 Aids to Study 146
Section 2 General Exercises 151
Section 3 Reading Exercises 157
Section 4 Writing Exercises 168
Unit Five 171
Text:Challenger;Reflections on a Tragedy Malcolm Mc Connell 171
Section 1 Aids to Study 179
Section 2 General Exercises 187
Section 3 Reading Exercises 195
Section 4 Writing Exercises 203
Unit Six 209
Text:The World House Martin Luther King,Jr． 209
Section 1 Aids to Study 216
Section 2 General Exercises 227
Section 3 Reading Exercises 236
Section 4 Writing Exercises 246
Unit Seven 249
Text:Intelligence,The University and Society Kenneth B．Clark 249
Section 1 Aids to Study 263
Section 2 General Exercises 267
Section 3 Reading Exercises 275
Section 4 Writing Exercises 287
Unit Eight 292
Text:On Aging Simone de Beauvoir 292
Section 1 Aids to Study 299
Section 2 General Exercises 304
Section 3 Reading Exercises 318
Section 4 Writing Exercises 335
Unit Nine 338
Text:The Fear Spreads from Newsweek 338
Section 1 Aids to Study 345
Section 2 General Exercises 356
Section 3 Reading Exercises 370
Section 4 Writing Exercises 391
Unit Ten 396
Text:Science and Technology in Developing Countries H．B．G．Casimir 396
Section 1 Aids to Study 408
Section 2 General Exercises 420
Section 3 Reading Exercises 435
Section 4 Writing Exercises 441