will作为情态动词，用法较多；今天只讲述will表示命令用法。可以译为：必须，一定要
will可以表示命令，威胁，警告；非常正式的用法，用“will”比“shall”婉转些，如：
You will wait here till I come back.
你一定要在这儿等我回来！
You will report to the principal at once.
你必须立即向上级汇报。
No one will leave the examination room before 12 o’clock.
任何人在12点之前都不许离开考场。
All boys will attend roll-call at 9 o’clock.
所有的男孩必须在九点钟参加点名。
You'll do it this minute! 你现在就要做这事！
Will you be quiet! 安静点儿！
You will do as I request, if you please...
请按我的要求做。
You will do as I say, at once. 你要照我说的做，马上
Every employee will carry an identity card at all times.
每个员工都必须一直携带身份卡。
In every way, I want you out of my life, but I’ll kill you if you don’t come back!
无论如何，我都希望你离开我的生活，但如果你不回去，我就杀了你！
All staff will attend regular training courses.
所有员工都要参加常规的培训课程。
You will carry out these instructions and report back this afternoon.
你必须（一定要）执行这些指示并于今日下午报告执行情况。
You will not leave this house without my permission.
没有我的允许，你不能离开这座房子。
All staff will submit weekly progress reports.
所有工作人员都必须呈交每周的进度报告。
You will send in your report on Thursday. 你必须在星期四提交报告。
All the members will send in their reports on Thursday. 所有成员必须在周四提交报告。