懒人背单词 第4册 四级词汇版PDF电子书下载

Unit 1 Happiness 5

Unit 2 Human Behavior 11

Unit 3 Attitudes Toward Work 20

Unit 4 Honesty 26

Unit 5 Appearance 32

Unit 6 Advertising Campaigns 41

Unit 7 Today'Youth 48

Unit 8 The Media 54

Unit 9 Computer Technology 59

Unit 10 Medical Ethics 65

Unit 11 Criminal Punishment and Crime Prevention 70

Unit 12 Ambition 76