英语科技文选同步练习册PDF电子书下载

Part One: Tests Unit 1-12 1

Unit One 1

Unit Two 14

Unit Three 24

Unit Four 33

Unit Five 42

Unit Six 51

Unit Seven 63

Unit Eight 73

Unit Nine 80

Unit Ten 88

Unit Eleven 97

Unit Twelve 105

Part Two: Keys to Tests Unit 1-12 113

Keys to Unit One 113

Keys to Unit Two 117

Keys to Unit Three 120

Keys to Unit Four 123

Keys to Unit Five 126

Keys to Unit Six 129

Keys to Unit Seven 133

Keys to Unit Eight 137

Keys to Unit Nine 140

Keys to Unit Ten 143

Keys to Unit Eleven 146

Keys to Unit Twelve 149

Part Three: Model Tests 1-3 152

Model Test One 152

Model Test Two 160

Model Test Three 168

Part Four: Keys to Model Tests 1-3 178

Keys to Model Tests One 178

Keys to Model Tests Two 181

Keys to Model Tests Three 184