实用大学英语教程预备教程教学参考书PDF电子书下载

Unit 1 1

Unit 2 2

Unit 3 3

Unit 4 4

Unit 5 5

Unit 6 6

Unit 7 7

Unit 8 8

Unit 9 9

Unit 10 15

Unit 11 20

Unit 12 25

Unit 13 30

Unit 14 35

Unit 15 41

Unit 16 45

Unit 17 53

Unit 18 58

Unit 19 63

Unit 20 70

Unit 21 75

Unit 22 81

Unit 23 88

Unit 24 96

Unit 25 101

Unit 26 108

Unit 27 113

Unit 28 121

Unit 29 126

Unit 30 133

Vocabulary 139