Module 1 Wonders of the world Unit 1 It's more than 2��000 years old. Unit 2 The Grand Canyon was not just big. Unit 3 Language in use Module 1�����B Module 2 Public holidays Unit 1 My family always go somewhere interesting as soon as the holiday begins. Unit 2 We have celebrated the festival since the first pioneers arrived in America. Unit 3 Language in use Module 2�����B�C�ϙz�y Module 3 Heroes Unit 1 She trained hard��so she became a great player later. Unit 2 There were few doctors��so he had to work very hard on his own. Unit 3 Language in use Module 3�����B�C�ϙz�y ������B�C��ȫ����һ���Z����� Module 4 Home alone Unit 1 I can look after myself��although it won't be easy for me ����