英语阅读教程 第4册PDF电子书下载

Unit One Scientific Research(Ⅰ) 1

Part A 2

Part B 8

Part C 10

Unit Two Scientific Research(Ⅱ) 25

Part A 27

Part B 33

Part C 35

Unit Three Safety(Ⅰ) 49

Part A 51

Part B 57

Part C 59

Unit Four Safety(Ⅱ) 73

Part A 74

Part B 81

Part C 82

Unit Five Gap (Ⅰ) 97

Part A 99

Part B 105

Part C 107

Unit Six Gap(Ⅱ) 123

Part A 125

Part B 131

Part C 133

Unit Seven Gender(Ⅰ) 147

Part A 149

Part B 155

Part C 157

Unit Eight Gender(Ⅱ) 171

Part A 174

Part B 179

Part C 182

Unit Nine Entertainment(Ⅰ) 197

Part A 199

Part B 204

Part C 207

Unit Ten Entertainment(Ⅱ) 219

Part A 221

Part B 227

Part C 228

Unit Eleven Education(Ⅰ) 241

Part A 242

Part B 248

Part C 250

Unit Twelve Education(Ⅱ) 263

Part A 265

Part B 271

Part C 273

Key to Exercises 287