walk

　　I walked to school this morning because my bike was broken. (walk用作动词,意思为步行,是教材中的第一种用法。)

　　The Browns enjoy walking by the lake after supper. (walk用作动词,意思为散步,是教材中的第二种用法。)

　　walk除了以上的常见用法外,还有下列几种用法。

　　My grandfather always walks his dog in the morning. (walk用作动词,意思为牵着动物走,溜。)

　　My boyfriend walked me home last evening. (walk用作动词,意思为陪伴走,护送走。)

　　My father has friends from all walks of life. (walk用作名词,a walk of life为固定短语,意思为行业,阶层。)