表示 要求 和 请求 的英语句型?

ask sb to do sth 要求某人做某事
tell sb to do sth告诉某人做某事
order sb to do sth命令某人做某事
request sb to do sth请求某人做事
request （请求）+that从句（从句要用should do，should 也可以省略，只用原形do）
command（命令）+that从句（从句要用should do，should 也可以省略，只用原形do）

1.请求：
Could you please+do sth.
Could you+do sth.
Would you please+do sth.
Would you+do sth.
肯定回答：Sure./Of course./No problem./I’d love to.
否定回答：Sorry./I’d love to but I…
例：1)Could you please clean our yard?
你能打扫一下我们的院子吗?
2)Could you turn to page 34?请翻到34页好吗?
3)Would you please turn on the light?请打开灯好吗?
4)Would you close the door?请关上门好吗?
2.委婉地提出被允许做某事：
Could I please+do sth.
Could I+do sth.
肯定回答：Sure./Of course./No problem.
否定回答：Sorry.
例：1)Could I please borrow your car?我可以借你的车吗?
2）Could I buy some drinks and snacks?我可以买一些饮料和小吃吗?