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2017年12月英语四级语法精讲:as…as

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  as…as结构的几点用法说明:

  1.基本用法

  该结构的基本意思是“与……一样”,其中接形容词或副词的原级,在否定句中,第一个as也可换成so.如:

  He doesn't study as [so] hard as his brother. 他学习不如他弟弟努力。

  2.涉及数量或程度的用法

  若涉及数量或程度,可用“as much+不可数名词+as”和“asmany+可数名词复数+as”。如:

  He doesn‘t pay as much tax as we do / as us. 他没我们交的税款多。

  There are not as many restaurants as there were. 现在餐馆没有过去多了。

  3.有关词序的一点说明

  其间接形容词时,有时该形容词还可修饰另一名词,但这个名词应带有不定冠词(注意词序)。如:

  I have as good a voice as you. 我的声音和你一样好。

  4.该结构的修饰语

  根据情况可用(not) nearly, almost, just, nothing like, exactly, not quite, half, one-ten, twice, threetimes, 30 per cent等修饰,并且这些修饰语必须置于第一个as之前,而不能置于其后。如:

  This room is twice as large as that one. 这个房间是那个房间的两个大。

  You‘re not half as clever us you think you are. 你远不是自己想像的那么聪明。

  It took three times as long as I had expected. 这件事比我预料的多花了两倍的时间。

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