祈使句用法详解：表厌烦或为耐烦

■典型例句

Do be quiet. 安静点儿吧!

Stop probing! 不要盘根问底了!

Speak quietly, can’t you ?  说话沉稳些，行不行？

Stop fiddling with that TV, will you? 别摆弄那台电视机了，行不行?