504　will, would和shall能否用作情态动词

1　will 可以用作情态动词，表示愿望或意愿。

I will do my best to help you. 我愿意尽全力帮助你。

Why won't you go with us? 你为什么不愿意同我们一起去？

Who will go and get some water? 谁愿意去弄点水？

提示

Will/would you (please)...？和Won't you (please)...?用来表示客气的请求、建议或征求他人的意见。

Will you please wait for me here? 请你在这里等我，好吗？

Will you please lend me your dictionary? 你可不可以把词典借给我用一下？

Would you shut the window please? 请把窗户关上好吗？

Won't you please write her a letter? 你给她写一封信好吗？

2　shall 也可以用作情态动词，Shall I...？和Shall we...？结构表示征求意见。

A： Shall we go swimming this afternoon? 今天下午我们去游泳好吗 ?

B： Good idea! 好主意 !

A： Shall I borrow your pen? 我能借一下你的钢笔吗 ?

B： Certainly. Here you are. 当然可以，给你吧 。