2004年1月 Q37題號

[autumnmaple]

37. The Louisiana Purchase of 1803 increased the territory of the United States by approximate 846,000 square miles, practically doubling the area of the United States.

這題答案是B,
approximate改成approximately,
想問的是,如何知道這裡要用副詞,而不是形容詞?謝謝

[nexxt0722]

舉個例子
大約四個小時-->nearly four hours 或者 about four hours
nearly/about(副詞)-->修飾four(形容詞)-->修飾hours(名詞)

同理可得
approximately(副詞)-->修飾846000(形容詞)-->修飾square miles(名詞)