21世纪大学实用英语基础教程综合练习 英文PDF电子书下载

Unit 1 1

Part Ⅰ Text Exercises 1

Part Ⅱ Exercises for PRETCO 7

Unit 2 15

Part Ⅰ Text Exercises 15

Part Ⅱ Exercises for PRETCO 22

Unit 3 31

Part Ⅰ Text Exercises 31

Part Ⅱ Exercises for PRETCO 40

Unit 4 47

Part Ⅰ Text Exercises 47

Part Ⅱ Exercises for PRETCO 54

Test yourseef (for Units 1-4) 62

Unit 5 72

Part Ⅰ Text Exercises 72

Part Ⅱ Exercises for PRETCO 79

Unit 6 87

Part Ⅰ Text Exercises 87

Part Ⅱ Exercises for PRETCO 95

Unit 7 103

Part Ⅰ Text Exercises 103

Part Ⅱ Exercises for PRETCO 111

Unit 8 118

Part Ⅰ Text Exercises 118

Part Ⅱ Exercises for PRETCO 124

Test yourseef (for Units 5-8) 131