Unit One A Picture Is a Poem without Words Unit Two What Is Important in Architectures? Unit Three World Heritage to Survive Unit Four Happy Man, Happy Dole? Unit Five History Repeats Itself Unit Six Science Rests on Phenomena Unit Seven Security Comes First Unit Eight I Can Manage Unit Nine What Is Domestic Business Telling? Unit Ten Be Swift to Hear, Slow to Speak Unit Eleven Gold Helps Promote Enterprise Culture Unit Twelve What Do We Benefit: from Hi-Tech? Unit Thirteen A Friend ls Known in Necessity Unit Fourteen Who Is the Next to Travel Space? Unit Fifteen Every Man for His Own Trade Unit Sixteen Philosophy and Philosopher Unit Seventeen Moral Education Be Imperative under the Situation Unit Eighteen Are You Surfing the Internet? Unit Nineteen An Idle Youth. a Needy Age Unit Twenty Knowledge Is Power Quiz Tapescripts Glossary