Europe is as large as Asia

题目

Europe is as large as Asia
我想说欧洲是亚洲的四分之一大
那么Europe is 【a】 quarter as large as Asia
用加冠词【a】吗?
因为我们不都说 This garden is half as large as that one.都不加冠词.
还有为什么可以不加冠词?上面的句子不是可以说成
This garden is one second as large as that one
one second 是 a half 为什么到句子中就没有冠词a了?
上面的问题都要回答啊 而且权威一点

答案

1那么Europe is 【a】 quarter as large as Asia用加冠词【a】吗?也可以不加的!像a quarter past 8,也有quarter past 8的说法啊!2,是one seconds 意思是2分之1的意思,等于a half一半,但是语法中通常都是说is half as...