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UNIT 1 SCIENCE AND SCIENTISTS µ¥ÔªºËÐÄËØÑø Section ¢ñ Reading and Thinking Section ¢ò Learning About Language Section ¢ó Using Language£¦Assessing Your Progress UNIT 2 BRIDGING CULTURES µ¥ÔªºËÐÄËØÑø Section ¢ñ Reading and Thinking Section ¢ò Learning About Language Section ¢ó Using Language£¦Assessing Your Progress UNIT 3 FOOD AND CULTURE µ¥ÔªºËÐÄËØÑø Section ¢ñ Reading and Thinking Section ¢ò Learning About Language Section ¢ó Using Language£¦Assessing Your Progress UNIT 4 JOURNEY ACROSS A VAST LAND µ¥ÔªºËÐÄËØÑø Section ¢ñ Reading and Thinking Section ¢ò Learning About Language Section ¢ó Using Language&Assessing Your Progress UNIT 5 FIRST AIO µ¥ÔªºËÐÄËØÑø Section ¢ñ Reading and Thinking Section ¢ò Learning About Language Section ¢ó Using Language&Assessing Your Progress Á·Ï°²á(µ¥¶À³É²á) ²Î¿¼´ð°¸Óë½âÎö(¼û²åÒ³) ºËÐÄÒªµã¹éÄÉ(¼û²åÒ³)