Unit One Big Bucks The Easy Way 1183
Part One Prestudying the Text 1183
Part Two Notes to the Text 1201
Part Three Exercises 1203
Unit Two Deer And the Energy Cycle 1216
Part One Prestudying the Text 1216
Part Two Notes to the Text 1237
Part Three Exercises 1237
Unit Three Why Do We Bel ieve that the Earth Is Round?Part One Prestudying the Text 1248
Part Two Notes to the Text 1265
Part Three Exercises 1268
Unit Four Jim Thorpe 1279
Part One Prestudying the Text 1279
Part Two Notes to the Text 1295
Part Three Exercises 1298
Unit Five To lie or Not to lie——The Doctor's DilemmaPart One Prestudying the Text 1313
Part Two Notes to the Text 1327
Part Three Exercises 1332
Unit Six How to Mark a Book 1344
Part One Prestudying the Text 1344
Part Two Notes to the Text 1359
Part Three Exercises 1362
Unit Seven The Luncheon 1378
Part One Prestudying the Text 1378
Part Two Notes to the Text 1396
Part Three Exercises 1399
Unit Eight The New Cares 1412
Part One Prestudying the Text 1412
Part Two Notes to the Text 1427
Part Three Exercises 1430
Unit Nine Journey West 1444
Part One Prestudying the Text 1444
Part Two Notes to the Text 1455
Part Three Exercises 1459
Unit Ten Why Peopl e Work 1472
Part One Prestudying the Text 1472
Part Two Notes to the Text 1487
Part Three Exercises 1490
Band Four 1502
Test 1 1502
Test 2 1516
Test 3 1528
Test 4 1542
Key to Book four 1556
Key to Band four 1564