单选题To their surprise, they&n

单选题 To their surprise, they found the lecture given by the famous professor easy ______.A.to be understoodB.to understandC.understandingD.understood

B解析试题解析：考查adj+to do sth意思“做事情怎么样”，用主动表示被动，句子意思“他们惊奇的是，他们发现著名教授给的课程很容易理解”，是主动理解，所以选B考点：考查adj+to do sth点评：固定句型to one’s surprise意思“令某人惊奇的是”， 后面的句子they found the lecture given by the famous professor…，given by the famous professor…做lecture后置定语，表示“被著名教授给的课程”。

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