ǰ�� Unit 1 Travel Chinese Idiom: Nan Yuan Bei Zhe�����@���H�� Text: China's Melting Glacier Brings Visitors Exercises Actual English: Guide Tour Extended Knowledge:���ս㡱��Ӣ�ı��_ Unit 2 Sports Chinese Idiom: Han Dan Xue Bu�������W���� Text: Olympian Simone Biles Has a New Title: College Student Exercises Actual English: Join Club Extended Knowledge:����ҹ����Ӣ�ı��_ Unit 3 Environment Chinese Idiom: Da Yu Zhi Shui��������ˮ�� Text: US Wildfire Smoke Causes Health Problems for MillionsExercises Actual English: Improve Theater Extended knowledge:��΢�š���Ӣ�Z���_ Unit 4 Food Culture Chinese Idiom: Hua Bing Chong Ji��������� Text: Lucky Foods for the Lunar New Year Exercises Actual English: Open Bank Account Extended Knowledge:���ώ�������Ӣ�Z���_ Unit 5 Health Chinese Idiom: Hui Ji Ji Yi���M�����t�� Text: Fruits and Vegetables Can Lower Blood PressureExercises Actual English: Reserve Conference Extended Knowledge:���|�ۡ���Ӣ�Z���_ Unit 6 Language Chinese Idiom: Zhi Lu Wei Ma��ָ¹���R�� Text: Where Did the English Language Come From? Exercises Actual English: Join Library Extended Knowledge:��Ʊ������Ӣ�Z���_ Unit 7 Business Chinese Idiom: Mai Du Huan Zhu���I��߀�飩 Text: Values of Business Exercises Actual English: Market Assignment Extended Knowledge:��4S�ꡱ�еġ�S������4��S�� Unit 8 Work and People. Chinese Idiom: Mao Sui Zi Jian��ë�����]�� Text: Attitudes Towards Workers Exercises Actual English: Work Out Project Extended Knowledge:��Ո�١���Ӣ�Z���_ Unit 9 Education Chinese Idiom: Meng Mu San Qian����ĸ���w�� Text: How to Gain Confidence in Your English Speaking? Exercises Actual English: Make Presentation Extended Knowledge:��ͨ���W������Ӣ�Z���_ Unit 10 Science & Technology Chinese Idiom: Ru Mu San Fen����ľ���֣� Text: Major Space Missions Planned in 2021 Exercises Actual English: Robotic Float Project & Ocean Research Extended Knowledge:���Ƽ��ԡ����Ƽ�ͨ�� ������ �����īI