to and etc. 2. to learn to use some useful structures properly. important point: grasp some important and useful words, expressions and sentence patterns. difficult point: use those words, expressions and sentence structures to translate. 《使用说明及学法指导》 1.自学同步测练(p )，完成预习案；2. 完成时间25分钟预习案 previewing case task1. 完成同步测练中的即讲即练
