题目内容
10．I had already learnt a lot about that famous scientist I met him．（ ）| A． | until | B． | before | C． | after | D． | although |
分析 在我见到那位著名科学家之前，我已经了解了关于他的很多（情况）．
解答 答案：B；until直到；before在…之前；after在…之后；although虽然； 尽管；根据句中的时态，可知"I had already learnt a lot about that famous scientist我已经了解了关于他的很多（情况）"；应该发生在"I met him我见到那位著名科学家"之前；故选B．
点评 根据句中信息正确理解句意，对所给句子的时态作出正确分析，从而作出正确解答．
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