1. 概念：表示將要發生的動作或存在的狀態及打算、計劃或準備做某事。
2. 時間狀語：tomorrow, next day (week, month, year), soon, in a few minutes, by the day after tomorrow等。
3.基本結構：will/shall +do
No one knows what will happen in the future.
沒人預知將來會發生什麼事情。
We shall know more and more as time goes on.
隨著時間的推移，我們將懂得越來越多。
表示不以人的意志為轉移的客觀的將來。
如：Today is Saturday. Tomorrow will be Sunday.
He will be thirty years old this time next year.
表示臨時決定，通常用於對話中。
— Mary has been ill for a week.
— Oh, I didn’t know. I will go and see her.
— Mary has been ill for a week.
4.am/is/are +going to 表將來的用法：
事先考慮打算決定做某事。
或者是某種客觀跡象預示即將會發生某事。
— Yes, I know. I am going to visit her tomorrow.
Look at the black clouds. It’s going to rain.
5.be about to do: 即將發生的事情，強調迫在眉睫。
馬上，立刻要做某事。
Sit down everyone. The film is about to start.
6.be to do : 客觀上（按計劃安排）打算，將要做某事。
（按命令，指示，約定，要求，職責、義務等）必須，必要應該做某事。
We are to meet at the school gate.
No one is to leave here without permission.
7.特殊用法 ：在時間、條件、方式、讓步狀語從句中，用一般現在時代替一般將來時,即主將從現。
If it is fine tomorrow ,we will go to the countryside.
8.特殊用法 ：當謂語動詞是 go, come, start, leave, arrive, begin,等短暫性動詞時，可以用一般現在時表將來。
一般句中常伴有表示將來時間的狀語。如，汽車、飛機、會議等按時刻表將要發生的事。
The train leaves at three this afternoon.
I am leaving Paris for London on Sunday.
【注意】：be going to和will的區別
1.be going to 表示近期、眼下就要發生的事情，will 表示的將來時間則較遠一些，如：
He is going to do homework tonight.
He will write a book one day(某天).
2. be going to 表示根據主觀判斷將來肯定發生的事情，will表示客觀上將來勢必發生的事情。
Look at the clouds.It is going to rain.
He will be twenty years old.
3.be going to 含有「計劃，準備」的意思，而 will 則沒有這個意思，如：
She is going to take a trip next year.（計劃去）
He will visit his grandparents next weekend(將會去，沒有計劃打算)
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