Passage 1 The Invention of Printing(印刷術(shù)的發(fā)明) Passage 2 Computer Virus(電腦病毒) Passage 3 Want Ads (招聘廣告) Passage 4 Running Red Lights(闖紅燈) Passage 5 Job Skills(職業(yè)技能) Passage 6 The Manatees(海牛) Passage 7 Optimism and Pessimism(樂觀與悲觀)(Ⅰ) Passage 8 Optimism and Pessimism(樂觀與悲觀)(Ⅱ) Passage 9 The Cats(貓的傳說) Passage 10 The Star in the Apple(蘋果中的星星) Passage 11 The Koalas''New Home(考拉的新家) Passage 12 The Forest Fires(森林大火) Passage 13 Canals in Birmingham(伯明翰的運河) Passage 14 The Story of a Cartoonist(一個卡通畫家的故事)(Ⅰ) …… Key to Exercises(答案)