高三二轮专题复习现在分词做状语 学案 讲评从使用情况来看，闭胸式的使用比较广泛。敞开式盾构之中有挤压式盾构、全部敞开式盾构，但在近些年的城市地下工程施工中已很少使用，在此不再说明。 目标导航.Knowledge aims:知识目标1. To revise the basic grammar rules of v-ing form as the Adverbial.2. To grasp some important and difficult points .Ability aim:能力目标 To solve the problems in Multiple Choices and reading passage. To use it in speaking and writing.Emotion aim:情感目标To learn to co-operate in groups and improve your problems awareness and be active in class.To keep positive attitude to life.从使用情况来看，闭胸式的
