大学英语课堂限时阅读PDF电子书下载

Unit One 1

Unit Two 7

Unit Three 13

Unit Four 19

Unit Five 25

Unit Six 31

Unit Seven 39

Unit Eight 45

Unit Nine 51

Unit Ten 57

Unit Eleven 63

Unit Twelve 69

Unit Thirteen 75

Unit Fourteen 83

Unit Fifteen 89

Key to Reading Comprehension 95