Contents 1
Unit 13 Albert Einstein 1
Part 1 Language Points 1
Part 2 Synchronous Test 22
Part 3 Explanation and Key 31
Unit 14 Satellites 35
Part 1 Language Points 35
Part 2 Synchronous Test 54
Part 3 Explanation and Key 63
Unit 15 A famous detective 68
Part 1 Language Points 68
Part 2 Synchronous Test 86
Part 3 Explanation and Key 96
Unit 16 The sea 100
Part 1 Language Points 100
Part 2 Synchronous Test 120
Part 3 Explanation and Key 130
Unit 17 Life in the future 134
Part 1 Language Points 134
Part 2 Synchronous Test 153
Part 3 Explanation and Key 163
Unit 18 Mainly revision 167
Part 1 Language Points 167
Part 2 Synchronous Test 184
Part 3 Explanation and Key 194
Unit 19 A freedom fighter 199
Part 1 Language Points 199
Part 2 Synchronous Test 219
Part 3 Explanation and Key 229
Unit 20 Disability 233
Part 1 Language Points 233
Part 2 Synchronous Test 252
Part 3 Explanation and Key 260
Unit 21 Music 264
Part 1 Language Points 264
Part 2 Synchronous Test 284
Part 3 Explanation and Key 294
Unit 22 A tale of two cities 298
Part 1 Language Points 298
Part 2 Synchronous Test 319
Part 3 Explanation and Key 328
Unit 23 Telephones 332
Part 1 Language Points 332
Part 2 Synchronous Test 357
Part 3 Explanation and Key 367
Unit 24 Mainly revision 371
Part 1 Language Points 371
Part 2 Synchronous Test 384
Part 3 Explanation and Key 393