这句话是主语（I）+状语（often）+谓语+宾语（play football）的形式.划线部分是play football 也就是对动作提问,这种情况下用what代替动作置于句首,将语序换为一般疑问句,为满足一般疑问句格式需要加助动词do,然后用实义动词do代替原来的动作play football 所以答案是 What do you often do? 这种题目如果有不懂的也许是你对句子成分和特殊疑问词不太了解,你可以用上述方法再试试回答①对I作为划线部分提问②对often作为划线部分的提问 答案:Who often plays football? How often do you play football?
