这句话联系到了动词的一般将来时的用法,给你点关于一般将来时的语法简讲：
一般将来时
1) shall用于第一人称,常被will 所代替.
will 在陈述句中用于各人称,在争求意见时常用于第二人称.
Which paragraph shall I read first.
Will you be at home at seven this evening?
2) be going to +不定式,表示将来.
a. 主语的意图,即将做某事.
What are you going to do tomorrow?
b. 计划,安排要发生的事.
The play is going to be produced next month.
c. 有迹象要发生的事
Look at the dark clouds, there is going to be a storm.
3) be +不定式表将来,按计划或正式安排将发生的事.
We are to discuss the report next Saturday.
4) be about to +不定式,意为马上做某事.
He is about to leave for Beijing.
注意：be about to 不能与tomorrow, next week 等表示明确将来时的时间状语连用.
----------------------------------------------------------------------用finish因为一般将来时的句式是主句用一般将来时,而从句用现在时!
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