learning aim: learning about cultural differences and intercultural communication. important point: to grasp some important and useful words, expressions and sentence patterns. difficult point: to improve the skills of reading. 使用说明及学法指导： 阅读课本p，完成预习案。 完成时间：20分钟。预习案 previewing case task1 词汇拓展 1. _____________ vt.& vi. 联合; 团结 _____________ n. 联合; 团结
