The participle 分词现在分词与过去分词1 构成4 功能2 时态3 语态5 独立结构6 区别 语态时态 主动式 被动式一般式writingbeing...
Unit2WitnessingtimeGrammarTeachingaimsanddemands:Toteachparticipleclauses.Difficultandkeypoints:ParticipleclausesTeachingaids:Mult...