如主语为第一人称,应将其改为第二人称.如：
I'm in Class ２Grade １． →
Are you in Class ２Grade １﹖
We're watching TV． →
Are you watching TV﹖
２．陈述句中有情态动词（can may must …）时,也可直接将它们提至主语前,即可成为一般疑问句.如：
He can swim now． →
Can he swim now﹖
The children may come with us． → May the children come with us﹖
３．陈述句中只有一个实义动词作谓语且其时态为一般现在时,变为一般疑问句时要在句首加do或does 主语后的实义动词用原形.如：