英语好的进!In three years,bill will be three times

问题描述:

英语好的进!In three years,bill will be three times
英语好的进!
In three years,bill will be three times as old as nancy was four years ago.
After three years,bill will be three times as old as nancy was four years ago.
有什么不同?

第二句是错句
因为after加一段时间 只能与一般过去时 连用 不能与将来时连用after不是在…之后嘛请记住下列语法规则
in 加一段时间用在 一般将来时态中
如 he will be back in two days 他将在两天后回来
after加一段时间用在 一般过去时态中
如after two dayshe cameback 两天后 他回来了
after加时间点 可用于 上述两种时态中
如he will be back after two o'clock 他将在两点后回来
he cameback after two o'clock两点后他回来了