英语六级基础语法知识：形式否定，实际肯定

　　英语里有的句子虽然用了否定词(或词组)，但并不表示否定意义。例如：you can not praise her too highly.这句虽然用了cannot,但意义却是肯定的，即"你怎么赞扬她都不过分。"

　　英语里形式否定，实际肯定的句子常见的有如下几种。

　　由nothing(比如nothing but,nothing except,nothing beyond,nothing besides,nothing like,nothing short of,nothing if not等)构成的句子.例如:

　　i did nothing but press the button.我只是按了按电钮.

　　nothing but socialism can save china.只有社会主义才能救中国.

　　he did nothing except(or beyond) writing the letter.他只写了这封信.

　　i care for nothing besides this one.我只要这一个.

　　there is nothing like blue serge for men’s wear.蓝色哔叽最适合于男子穿.

　　there is nothing like jogging as a means of exercise.锻炼身体的最好办法是跑步.

　　his escape was nothing short of a miracle.他的逃跑科可以说是个奇迹.

　　the plan is nothing short of revolutionary.这个计划完全是革命性的.