非谓语动词的否定式

 　　一、基本方法

　　非谓语动词的否定式通常是就在非谓语动词之前加 not 或 never。如:

　　Try not to make a noise. 尽量别弄出声来。

　　He told the children not to play in the street. 他叫孩子们不要在街上玩耍。

　　He apologized for his not being able to arrive on time. 他因没能按时到来而道歉。

　　I told him not to make a mess in the kitchen. 我叫他不要把厨房弄得乱七八槽。

　　Not having finished his work, he could not leave the office. 由于工作没干完他不能离开办公室。

　　Not having met him, I cannot tell you what he is like. 我没有见过他，所以说不出他的模样。

　　Not having received his letter, she decided¹ to write to him again. 她没收到他的们，就决定再给他写一封。

　　二、注意之点

　　当前面有逻辑主语时，要放在逻辑主语与非谓语动词之间。如：

　　I’m surprised at your not having noticed. 我对你没有注意到感到惊奇。

　　Jenny’s not having been trained as a dancer is her one regret. 詹尼未被培养成一名舞蹈演员，是她的一件憾事。

1 decided   

adj.决定了的，坚决的；明显的，明确的

参考例句：

• This gave them a decided advantage over their opponents.这使他们比对手具有明显的优势。
• There is a decided difference between British and Chinese way of greeting.英国人和中国人打招呼的方式有很明显的区别。