Unit 1 English and Its Morphology Unit 2 People, Language and Culture Unit 3 Materials and Substances Unit 4 Bio-logies Unit 5 Market and Economy Unit 6 Finance, Trade and Economy Unit 7 Enterprise Management and Culture Unit 8 Human Feelings and Ethics Unit 9 Beliefs and Custom Unit 10 Scientific Leaps in the 20th Century Unit 11 Information Technology Unit 12 Literature Works and Style Index I 英语常用词根,前缀和后缀一览表 Index II 英语的动词和结构词