表示按原定计划进行某事时，可以使用进行时态表示将来（现在进行时表将来，过去进行时表过去将来），这种情况常用于表示运动的动词come，go，stay，arrive，leave等，或者是表示交通方式、行程安排的动词如fly，walk，ride，drive（a bus，a taxi）等。
①We are leaving at noon.
我们中午出发。（已经决定）
②I was going to play basketball, but it began to rain.
我本来是打算去打篮球的，但下起雨来了。
练习
1、In the following dialogue, a newspaper reporter is interviewing Wang Wei about
her plans for the trip along the Mekong River. However, they are not sure about
some of the verb tenses. Please help them complete their conversation.
R：Miss Wang, I hear that you are going to travel along the Mekong River. That’s
really exciting. Have you got everything ready?
W：Almost.
R：When are you going/leaving?
W：Next Monday.
R：How far are you going/leaving each day?
W：It’s hard to say. If the weather is fine, I think we’ll be able to ride
75 km a day.
R：Where are you staying at night?
W：Usually in our tent, but sometimes in a small hotel in town.
R：Do you think you are coming back here soon?
W：0h, we are not coming back to this place. We are going home. That’ll be a
month later.
R：Thank you for your time, Miss Wang. Good luck on your journey!
W：Thank you.