在英语学习中，人们经常会见到一些结构近似而含义颇不同的句子。这些句子的差别往往只是一词之微或者仅仅在词序上略有不同，而在涵义上却大相径庭。为了解决这类问题，本书特别精选150对较有典型意义的形似句子，指出它们之所以不同的关键所在，使读者能清楚区别其含义，正确掌握其用法。每题又多举一些同类常用例证，以加深印象。例句全部中英对照，以适应不同程度的读者的需要。

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