请求帮助： Would you do me a favor?
Would you be so kind as to…?/
Could I trouble you to send this book for me?/
I wonder if you would tell me…?/
If it is not too troublesome, could you…?
/ I hope this request will not trouble you too much.
请求允许：Please give me a few more days./May I have a look at your dictionary? / Would you mind if I opened the window? / I wonder if I could open the door. / Would it be possible to have a talk with you?
请求做事(要求与暗示)：Let’s go to the bookstore this afternoon./ I want to have a look at your book. / I wish you could…/ I would like ask you to clean the room./ You are making a big mess./ I feel a bit hungry now. What time is it now?
Dear Professor Hu,
I am very happy to have the chance to listen to your lecture on “American Literature”. But it is a pity that I was late that day due to an accident on my way to the lecture and failed to get the handout. Your lecture is really instructive for my English study, so I wonder if you could kindly e-mail the handout to the address:firstname.lastname@example.org@yahoo.com.cn.Heartfelt thanks.