Ⅰ．Pre-reading Questions先导提问

Ⅱ．Appetizer for Reading开胃导读

Unit 1 Life Science生命足迹 声声不息

Section A Careful Reading细读

Section B Fast Reading速读

Section C Free Reading开心一读

Unit 2 Environmental Protecion和谐自然 绿色家园

Ⅰ．Pre-reading Questions先导提问

Ⅱ．Appetizer for Reading开胃导读

Section A Careful Reading细读

Section B Fast Reading速读

Section C Free Reading开心一读

Ⅱ．Appetizer for Reading开胃导读

Unit 3 Scientific Technology走进科技新时代

Ⅰ．Pre-reading Questions先导提问

Section A Careful Reading细读

Section B Fast Reading速读

Section C Free Reading开心一读

Unit 4 Mechanism汽车革“心”“心”为我动

Ⅰ．Pre-reading Questions先导提问

Ⅱ．Appetizer for Reading开胃导读

Section A Careful Reading细读

Section B Fast Reading速读

Section C Free Reading开心一读

Ⅱ．Appetizer for Reading开胃导读

Unit 5 Energy Crisis祸从天降 危机凸显

Ⅰ．Pre-reading Questions先导提问

Section A Ca reful Reading细读

Sectior B Fast Reading速读

Section C Free Reading开心一读

Unit 6 Mental World心灵世界

Ⅰ．Pre-reading Questions先导提问

Ⅱ．Appetizer for Reading开胃导读

Section A Careful Reading细读

Section B Fast Reading速读

Section C Free Reading开心一读

Ⅱ．Appetizer for Reading开胃导读

Ⅰ．Pre-reading Questions先导提问

Unit 7 Human Intelligence神秘的智慧之源

Section A Careful Reading细读

Section B Fast Reading速读

Section C Free Reading开心一读

Unit 8 The Lost Colony从人们视线中消失的早期殖民者

Ⅰ．Pre-reading Questions先导提问

Ⅱ．Appetizer for Reading开胃导读

Section A Careful Reading细读

Section B Fast Reading速读

Section C Free Reading开心一读

Appendix Ⅰ 参考译文

Appendix Ⅱ 习题答案