倒装结构 知识讲解 as引导从句时,句子应怎样倒装

注意：1) 句首名词不能带任何冠词.2) 句首是实义动词,其他助动词放在主语后.如果实义动词有宾语和状语,随实义动词一起放在主语之前.Try hard as he will,he never seems able to d o the work satisfactorily.具体形式如下讲as可引起让步状语从句,表示“虽然、尽管”,但要用部分倒装结构,形式如下：1.形容词 + as + 主语 + 系动词.如：Tired as he is,he offers to help me.尽管他已经很累了,他还是主动提出帮助我.2.过去分词 + as + 主语 + 系动词.如：Well-written as the book is,the author is not satisfied and prepared to revise it.尽管这本书写得很好,作者还是不满意并打算修改它.3.名词 + as + 主语 + 系动词.如：Student as he is,he does not study hard.他虽然是个学生,却不努力学习.4.副词 + as + 主语 + 谓语部分.如：Much as I admire his courage,I don’t think he acted wisely.我虽然崇拜他的勇气,但我认为他这样做是不明智的.5.动词原形 + as + 主语 + 谓语的另一部分（情态动词或助动词may,might,will,would等）.