单选题LeonardodaVinci(1452～1519)______

单选题 Leonardo da Vinci (1452～1519) ________ birds kept in ages in order to have the pleasure of setting them free.A.is said to be buyingB.is said to have boughtC.had said to buyD.has said to have bought

B解析句意：据说莱昂纳多·达·芬奇(1452～1519)（过去）常买一些被关在笼子里的鸟为了享受放飞它们的乐趣。根据句意，可首先排除C、D两项；在A、B两项的选择中可考虑buy这一动作先于say，因此本句应该用sb. is said to have done结构；而sb. is said to be doing表达“据说某人正在做某事”，故排除A项。对于不定式完成式(to have done/to have been done)、进行式(to be doing)的考查为高考考查不定式的难点之一。

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