在教学中我们经常发现以下这样的句子: 1.I remember the fear and anger in the gunmen svoices because Jeremy was being slow, and I rememberwondering why he was being slow.我记得由于杰罗米当时慢慢腾腾,歹徒的声音中流露出恐惧和愤懑,我记得当时自己也纳闷,杰罗米为什么要慢慢腾腾。 2.Tom is being foolish.汤姆在发傻。 3.You were being stupid.你当时真傻。 4.He is being a naughty boy. 他的行动像个顽皮的孩子。从上面的句子我们可以看出,be动词用于进行