Unit 1 The Scientist

Part Ⅰ Listening TaskListening Practice

Part Ⅱ Reading TaskText A The Last Years of a Nobel Laureate

Part Ⅲ Home Reading TaskText B Oxford and Cambridge

Part Ⅳ Comprehensive Language PracticeSpeaking Practice:group discussion

Essay Writing:writing an essay on any of the topics

Unit 2 Economic Life

Part Ⅰ Listening TaskListening Practice

Part Ⅱ Reading TaskText A Ethics and the Consumer

Part Ⅲ Home Reading TaskText B Time Dollars

Part Ⅳ Comprehensive Language PracticeSpeaking Practice:role play

Practical Writing:writing letters of complaints and responses

Unit 3 Human Weaknesses

Part Ⅰ Listening TaskListening Practice

Part Ⅱ Reading TaskText A Is He Living or Is He Dead?

Part Ⅲ Home Reading TaskText B Edward Mills and George Benton:A Tale

Part Ⅳ Comprehensive Language PracticeSpeaking Practice:mock debate

Essay Writing:writing an essay on any of the topics

Unit 4 The Meaning of Work

Part Ⅰ Listening TaskListening Practice

Part Ⅱ Reading TaskText A Assembly Line Adventure

Part Ⅲ Home Reading TaskText B The Search for Meaning in Wark

Part Ⅳ Comprehensive Language PracticeSpeaking Practice:group discussion

Practical Writing:writing letters of recommendation

Unit 5 Research Ethics

Part Ⅰ Listening TaskListening Proctice

Part Ⅱ Reading TaskText A Falsity and Failure

Part Ⅲ Home Reading TaskText B On Being a Scientist:Responsible Conduct in Research

Part Ⅳ Comprehensive Language PracticeSpeaking Practice:speech contest

Practical Writing:writing a research paper（1）

Unit 6 Euthanasia

Part Ⅰ Listening TaskListening Practice

Part Ⅱ Reading TaskText A Accidents,Suicide,and Euthanasia

Part Ⅲ Home Reading TaskText B A Daughter's Dilemma

Part Ⅳ Comprehensive Language PracticeSpeaking Practice:mock debate

Essay Writing:writing an essay on any of the topics

Unit 7 Nature and Man

Part Ⅰ Listening TaskListening Practice

Part Ⅱ Reading TaskTedtA A Wilderness Experience

Part Ⅲ Home Reading TaskText B Once More to the Lake

Part Ⅳ Comprehensive Language PracticeSpeaking Practice:group discussion

Essay Writing:writing an essay on any of the topics

Unit 8 Earth and Space

Part Ⅰ Listening TaskListening Practice

Part Ⅱ Reading TaskText A Except from"The Shores of the Cosmic Ocean"

Part Ⅲ Home Reading TaskText B The Harmony of Worlds

Part Ⅳ Comprehensive Language PracticeSpeaking Practice:group discussion

Practical Writing:writing a research paper（2）

Test Yourself(Units 5-8)

Appendix Ⅰ Key to Exercises in Parts Ⅰ,Ⅲ,Ⅳ

Appendix Ⅱ Tape Scripts and Key to Test Papers

Appendix Ⅲ Glossary