偶看新闻红霉素肠溶胶囊售价:《英语语法句法窍门》之40讲：巧记倒装句
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《英语语法句法窍门》之40讲：巧记倒装句
在带有倒装句的复合句（或并列句）中，到底应在何处倒装，不少初学者觉得难以掌握。下面的顺口溜可以帮助你较容易地掌握其结构形式。
前倒后不倒①，O，NU主倒从不倒②，
2N前倒后也倒③，NM前后均不倒④。
注：
①NB代表Not only…，but also…引导的并列句。 not only位于句首时，所引导的前面的分句倒装，后面的分句不倒装。故此称为“前倒后不倒”。如：
1）Not only did he come，but also he was very happy．
2）Not only was everything that he had taken away from him，butalso his German citizenship（was taken away）．
②O代表only＋状语从句；NU代表Not until＋状语从句。此两种结构位于句首时，倒装主句而不倒装从句，即：“主倒从不倒”。如：
1）Only when he told me did I know it．
2）Not until I began to work did I realize how much time I hadwasted．
No sooner…than…，Hardly／Scarcely…when…等句型也属此类用法。如：
No sooner（Hardly） had we reached home than（when）it began torain．
③2N代表Neither…nor…所引导的并列句。2N若位于两分句之首，则前后分句均倒装。即“前倒后也倒”。如：
Neither do I know her name，nor does he．
④NM即No matter…引导的状语从句。此时前面从句及后面主句均不倒装。即“前后均不倒”。如：
No matter how busy he is，he always comes to help us．