1、as 引 定 从句 的特殊用法as 引 定 从句 的特殊用法关系代 as 既可以引 限制性定 从句 , 也可以引 非限制性定 从句。 as 可以在从句中作主 、 或表 。1、 as 引 限制性定 从句as 引 限制性定 从句,置于先行 之后, 与其 关系密切, 不可分割。如:He is such a good boy as everyone likes、她就是大家都喜 的好孩子。Such machines as are used in our workshop are made in China、我 使用的机器就是中国制造的。as 常 搭配 :1)such+( 不定冠 +) 名 +as 引 的
2、定 从句, 意思就是“像一 的”。如:The little boy realized that there was no such a tank as he dreamed of after he got to the museum、那个小男孩儿到了博物 后才知道没有她所想象的那种坦克。2)the same+名 +as 引 的定 从句, 意思就是“同一 事/物”。如 :Lao Li bought the same computer as I did 、老李 的 跟我 的一模一 。1、as 引 非限制性定 从句as 引 的非限制性定 从句, 既可以放在主 之前, 也可以放在主 之后。通常用于下列
3、句型 : as is know to all , as is said, as is reported, as is announced, as we know, as I expected 如 :as 引导定语从句时的特殊用法As I expected, he got the first place again in this mid-term examination、正如我所预料的那样, 她在这次期中考试中又得了第一名。2、as 引导非限制性定语从句时与which 的区别1)当非限制性定语从句置于主语之前时, 只能用 as。如 :As is known to us, the moon tr
4、avels round the earth 、2)从句置于主语之后, 且从句有否定词或表示否定意义时, 只能用 which 。如 :Tom was late for school this morning, which was unexpected 、汤姆今天迟到了, 这让人觉得意外。He drinks a lot every day, which his wife doesn t like、 at all每天她都喝很多酒, 她的妻子一点都不喜欢她这样。3)非限定性定语从句中出现expect , think , suppose等表示猜测、想象、预料等时, 只能用 asShe succeeded
5、 in her doing the research work , as we expected、4) 固定搭配 :such/the same+asExercises:1. The British are not familiar with different cultures and other ways of doing things, _is often the case in other countries、A) as B) what C) so D) that2、 _might be expected, the response to the question was very mixed、A) As B) That C) It D) What3、 I hope all the precautions against air pollution, _suggested by the local government, will be seriouslyconsidered here、A) after B) whileas 引导定语从句时的特殊用法C) as D) since
