the subject takes only half as large a percentage of the total.到底拿了多少

题目

the subject takes only half as large a percentage of the total.到底拿了多少
Secondly,the size of the population of items influences the value assigned to an expression.
Thus,if we tell a subject to take "a few" or "a lot of" glass balls from a box,
he will take more if the box contains a large number of glass balls than if it has a small number.
But not proportionately more; if we increase the number of glass balls eight times,the subject takes only half as large a percentage of the total.
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上面的as怎么不是 as large ..as 的形式
a percentage of the total 是不是：总数的(按一定比例的)一部分 这个比例和前文有没有关系
only half 是说,只拿了,一定比例的一半,是不是之前,比如都是按4%拿的,这次很多,只拿了2%?否则为什么要强调是only half,是不是意味着之前不是一半,而是percentage（一个固定的比例）.

答案

问题1 ,as large as 是表示和什么什么一样大,或者一样庞大的数量.结合如上一段话,之用了as …表示和什么一样,如…...例如,As usual ,as you like ….问题2 ,a percentage of the toal ,是指一定的比例,如果前文有提...