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1、,征服语法之 否定结构,双重否定结构,要通过这次考试并不难。It is very easy to pass the examination.It is not difficult to pass the examination.,双重否定结构否定词+fail to，never fail to、cant fail to、dont fail toCats never fail to fascinate human beings.,否定的形容词之前加否定，unreasonable，not unreasonable；uncommon，not uncommon等what he said is not u
2、nreasonable.what he said is reasonable.,对于我们来讲犯错误是很正常的。it is quite common for us to make mistakes.it is not uncommon for us to make mistakes.,not+without You can not learn English well without working hard.He does not have any meal without meat.没有你，世界寸步难行The world can not exist without you.,no+notThere is no cat that does not like fish.There is nothing that he can not do.,在人生的旅途中，我们每一次成功都伴随着汗水和泪水。During life journey,we never make any success without sweat and tears.世上无难事，只怕有心人Nothing is impossible to a willing mind.,
