Accustomed to ______ the steep mountain,

问题选择题

Accustomed to ______ the steep mountain, he had no difficulty reaching the top.

A．climbing

B．climb

C．having climbed

D．have climbed

答案

答案：A

题目分析：固定句型become/be accustomed to doing sth.习惯于做某事。故选A. 这不选C或D。因为此处不存在先后关系一说，having done 一般非谓语动词连用，这里不能与宾语climbing连用。

点评：平时多注意积累此类句型，高中阶段to为介词要注意以下几点：