1、标志:often(经常),usually(通常),sometimes(有时),always(总是),never(从不),
on Sundays(在星期天), every day/month/year(每一天/月/年)
2、结构:
(1)主语+连系动词be(am/is/are)+名词/形容词/数词/介词短语/副词等做表语表状态(包括There be +n.)
练习:
1.I______(be) a student. My name_____(be) Tom.
2. Where _____(be) my shoes? They___(be) here.