have grown so tall that I scarcely recognize you.你长成这么高，我几乎认不出你来了。Did you recognize your uncle at once? 你是不是一下子就认出你的叔叔来了？Presently I recognized that we were in the Atlantic Avenue. 现在我知道我们在亚特兰大大街。
5、keep up, keep up with
keep up既可是动副型短语动词，也可是动介型短语动词，主要表示“（斗志，价格等）不低落”，“维持，继续”等意。可以用于被动语态。例如：Their spirit kept up well in spite of hardships.虽有困难，但他们并不气馁。Prices still keep up.物价仍旧上涨。I hope the weather will keep up.我希望天气继续晴朗。They entered into a correspondence which was kept up for almost 10 years. 他们开始通信了，并且把这种通信联系保持了十年之久。
keep up with是一个动副介型短语动词，后须接名词做其宾语，表示“跟上，与...同步前进”的意思，即有强调并行不悖，不掉队的意味。只用于主动语态。例如：He walked so fast that I could hardly kept up with him.他走得那么快，我简直跟不上了。We must keep up with the times. 我们应该跟上时代。
6、knock down, knock out
这两个短语动词是动副型，knock既可作及物动词用，也可作不及物动词用。两个短语动词均在句中作谓语，只是意义不同。1. knock down主要表示下列几种意义：1.击倒，* 2.拍卖给 3.拆卸，拆散 4.（强迫）减价。例如：He was knocked down by a lorry.他
高考必背英语词汇讲座 K3
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