练习材料： Lesson75SOS 求救信号 When a light passenger plane flew off course so...

练习材料： Lesson 74 Out of the limelight 舞台之外 An ancient bus stopped by a dr...

练习材料： Lesson73 The record-holder Children who play truant from school ar...

练习材料： Lesson 72 A car called Bluebird The great racing driver, Sir Malco...

练习材料： Lesson 71 A famous clock When you visit London,one of the first th...

练习材料： Lesson 70 Red for danger 危险的红色 During a bullfight,a drunk suddenly...

练习材料： Lesson69 But not murder! 并非谋杀 I was being tested for a driving lic...

练习材料： Lesson 68 Persistent 纠缠不休 I crossed the street to avoid meeting hi...

练习材料： Lesson 67 Volcanoes Haroun Tazieff， the Polish scientist, has spen...