知识点as引导状语从句.ppt

知识点 —— as 引导状语从句 as 引导状语从句 【一、引导状语从句用法】 作为连词， as 极其活跃，能引导多种状语从句，本文 拟将这一用法作一归纳。 1 、引导时间状语从句 As you study a globe, you may notice that most of the large land areas are connected, or almost so. ( 高一册，第 267 页 ) As the steam expands, the temperature falls. 当水蒸汽膨胀 时，温度就下降。 Just as I was backing out, my sleeve caught on the corner of a tray of diamonds. ( 高三册，第 225 页 ) as 引导状语从句 【一、引导状语从句用法】 2 、引导原因状语从句 As Li Ping was not well, I went there myself. ( 高一册 , 第 96 页 ) As water is a good solvent, pure water is never met with in nature. 因为水是一种很好的溶剂，所以在自然界从未遇见过纯水。 as 引导的原因状语从句也可以采用倒装结构，如： Tired as he was, he want to bed at once. 他因为很累，所以 马上就去睡了。 Michael, fool as he was, completely ruined the dinner. 由于迈克尔的愚蠢，这次宴会全给搅乱了。 as 引导状语从句 【一、引导状语从句用法】 Absorbed as he was in a mathematical problem, he did not notice my entering the room. 由于他全神贯注在解一道数学题，所以没有注意到我走进 房间。 But, living as it does in a community of cells, it is not independent at all. ( 高二册，第 336 页 ) Living as we do in a remote village, we have few visitors. 由于我们住在一个偏僻的村子里，所以没有什么来客。 as 引导状语从句 【一、引导状语从句用法】 3 、引导让步状语从句，其结构如下： 1 ） adj.+as+ 主语＋系动词 be Young as he is, he knows a lot of things. 他年龄不大，可知 道的事情却不少。 Poor as he was, he was honest. 他虽然穷，但很诚实。 Hard as steel is, it will bend or break under the action of a strong force. 钢虽然很硬，但在强力作用下也会弯曲或断裂。 as 引导状语从句 【一、引导状语从句用法】 2 ） n.+as+ 主语＋系动词 be ， … Child as he is, he knows a lot of things. 他虽然是个孩子，可 知道的事情却不少。 King as he is, he is unhappy. 他虽然是国王，但还是不开心。 Expert as he was, he failed. 他虽然是专家 , 但还是失败了。 注意在本句型中，句首的单数可数名词前不用冠词。试比 较下面这个与第一句意义相同的句子： Although he is a child, he knows a lot of things. as 引导状语从句 【一、引导状语从句用法】 3 ） adv.+as+ 主语 + 动词， … Much as I like it, I won t buy it. 尽管我很喜欢它，但我却不 买。 Fast as you read, you can t finish the book in two days. 尽管你读得很快，你也不能在两天之内读完这本书。 4 ） v.( 原型 ) ＋ as ＋主语＋助动词， … Try as you may, you will never succeed. 你尽管可以试，但 决不会成功。 as 引导状语从句 【一、引导状语从句用法】 4 、引导方式状语从句 The absence of air also explains why the stars do not seem to twinkle in space, as they do from