http://learnenglish.britishcouncil.org/en/grammar-reference/future-plans

http://learnenglish.britishcouncil.org/en/english-grammar/verbs/talking-about-future

1. When we know about the future we normally use the present tense.

• We use the present simple for something scheduled or arranged:

We have a lesson next Monday.
The train arrives at 6.30 in the morning.
The holidays start next week.
It is my birthday tomorrow.

• We can use the present continuous for plans or arrangements:

I’m playing football tomorrow.
They are coming to see us tomorrow.
We’re having a party at Christmas.

2. We use will to talk about the future:

• When we make predictions:

It will be a nice day tomorrow.
I think Brazil will win the World Cup.
I’m sure you will enjoy the film.

• To mean want to or be willing to:

I hope you will come to my party.
George says he will help us.

• To make offers and promises:

I’ll see you tomorrow.
We’ll send you an email.

• To talk about offers and promises:

Tim will be at the meeting.
Mary will help with the cooking.

3. We use (be) going to:

• To talk about plans and intentions:

I’m going to drive to work today.
They are going to move to Manchester.

• When we can see that something is likely to happen:

Be careful! You are going to fall.
Look at those black clouds. I think it’s going to rain.

LISTENING: http://learnenglish.britishcouncil.org/en/category/grammar-116