国家级大学英语试题库学生练习与自测 4PDF电子书下载

Unit One 1

Unit Two 12

Unit Three 23

Unit Four 34

Unit Five 44

Test Yourself Paper One 54

Test Yourself Paper Two 65

Unit Six 76

Unit Seven 86

Unit Eight 96

Unit Nine 107

Unit Ten 117

Test Yourself Paper Three 128

Test Yourself Paper Four 140

Tapescripts 152

Key 219