Interest is as ________ to learning as the ability to understand, even more so. A．vital B．o.

Interest is as ________ to learning as the ability to understand, even more so. A．vital B．o.

A

试题分析：句意: 互联网对于学习极端重要，就像理解能力对于学习极端重要一样，互联网甚至比理解能力更加重要。be vital to 表示：对.....极端重要；adequate充足的；original最初的；explicit表示相当明确清晰,没有丝毫模棱两可或模糊不清。根据句意故选A。 点评：本题难度适中。形容词是高考的热点，这里主要考查的它们的词义，尤其是考查同一词根的不同形式的用法及区别，需要考生平时多记多练。还要注意与形容词连用的介词。 即学即练：The ________ owner of the house moved out. A. vital              B. original              C. adequate           D. explicit 解析：B。句意：房子原先的主人搬出去了。