what在英语中是个很常用的词。我们知道它能用作疑问词,引导特殊疑问句,在句中做主语﹑表语或宾语;又能用作连接代词(或复合关系代词),引导主语从句﹑表语从句或宾语从句;还能用作疑问形容词,只作定语并可表示感叹。对于这些常规的用法本文就不一一赘述,现就what在高中英语中的某些特殊用法归纳如下:
1. what = just as,意为恰像,犹如,好比用作连词,引导比较状语从句。
⑴ 惯用句式是:A is to B what C is to D. 意为A对B而言正如C对D一样例如:
① Air is to us What water is to fish. 空气对于我们犹如水对于鱼。(介词to 表示两者的关系)
⑵ 也有A is for B what C is for D.句式。例如:
② Poultry is for the cook what canvas is for the paint. 厨师离不了家禽正如画家离不开画布一样。(介词for表示供使用)
⑶ what 引导的从句也可以放在句首,其句式是: What C is to D, that A is to B.(= A is to B what C is to D.)
在这一结构中,喻体在前,主体在后,相当于just as,so结构,意思也是A对B而言正如C对D一样例如:
What blood vessel is to a mans body, that railway is to transportation.(=Just as blood vessel is to a mans body ,so Railway is to transportation.)
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2016-03-17
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