一.Will
肯定句：I will have lunch in the afternoon.
否定句：I won't have lunch in .(won't=will not)
一般疑问句：Will you have lunch the afternoon?肯定及否定回答：Yes,I will.No,I won't.
特殊疑问句：针对时间提问：When will you have lunch?
针对事件提问：What will you do in the afternoon?
针对人物提问：Who will have lunch in the afternoon?
二.Be going to
肯定句：I am going to have lunch in the afternoon.
否定句：I am not going to have lunch in .
一般疑问句:Are you going to have lunch the afternoon?
肯定及否定回答：Yes,I am.No,I am not.
特殊疑问句：针对时间提问：When are you going to have lunch?
针对事件提问：What are you going to do in the afternoon?
针对人物提问：Who is going to have lunch in the afternoon?
*be动词随主语改变.
希望能帮到你哦!加油!