作业帮My brother has worked as a waiter since last year.对划线句提问,划线部分是since last year.并说明为什么要那样做,速战速决!
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/15 01:54:10
My brother has worked as a waiter since last year.对划线句提问,划线部分是since last year.并说明为什么要那样做,速战速决!
My brother has worked as a waiter since last year.
对划线句提问,划线部分是since last year.并说明为什么要那样做,速战速决!
My brother has worked as a waiter since last year.对划线句提问,划线部分是since last year.并说明为什么要那样做,速战速决!
question:how long has your brother worked as a waiter?(你弟弟做服务生做多久了?）
answer:my brother has worked as a waiter since last year（我弟弟从去年就开始做服务生了）
说明：
1）这是一个典型的现在完成时的语态.强调的是一个持续的状态（从去年到现在一直都在做服务生）.
2)强调一个持续状态的时候,疑问句是用“how long”,强调点状态的时候用“when”.比如下面的一疑问句,when did your brother work as a waiter?
这句话是说“你弟弟什么时候做的服务生?”这明显是个点状态.如果把这句当成答案,那回复的时态就不应该是现在完成时,而是一般过去时.
不知道我解释的清楚了没有,请楼主自行比较.注意时态.
How long has you brother worked as a waiter?
对since提问，就是提问时间，所以用how long
When does your brother start to work as a waiter?
since last year.是开始的时间
How long has your brother worked as a wa
How long /When does your brother work as a waiter?
since last year从去年开始
问的时候问问题的人并不知道你的兄弟是从去年开始的,所以问题应该以一般现在时的时态提问.
when did your brother start to work as a waiter?
How long/When has your mother worked as a waiter?