Looking back on his youth, he finally realized that his pain taking effort in Senior Three

Looking back on his youth, he finally realized that his pain taking effort in Senior Three      his bright future.
A. shaped B. had shaped C. was going to shape D. was to shape
【答案】D
【解析】
【详解】考查时态。句意：回首自己的青春，他终于意识到，自己在高三的拼搏注定是为了塑造自己美好的未来。分析句子可知，本句为过去将来时，be going to do表示将要发生的事情或打算最近要进行的动作，不符合句意。be to do表示 “命运”，将来必然要发生的事，译作 “注定……”。符合句意。故选D项。
【点睛】be +动词不定式（即be + to do sth.）的用法如下： 
1.表示按计划或安排要做的事。例如： 
When are you to leave for home?你什么时候回家？  
2.表示“应该”，相当于should, ought to。例如： 
You are to report to the police.你应该报警。 
3.表示“必须”，相当于must, have to。例如： 
The letter is to be handed to him in person.这封信必须亲手交给他。 。 
4.表示“想，打算”，相当于intend, want。例如： 
If we are to be there before ten, we’ll have to go now.如果我们要在十点前到，我们现在就得走。 
5.用于第一人称疑问句，表示征求对方意见。例如： 
Am I to go on with the work?要我继续完成这项工作吗？ 
6.用于否定句，表示“禁止”，相当于mustn’t。例如： 
The books in this room are not to be taken outside.这个室内的书籍不得带出室外。 
7.表示“可以，可能”，相当于may, can。例如： 
The news is to be found in the evening paper.这条消息可以在晚报上见到。 
8.were to do sth.用于if或even if / even though从句中，表示对未来的假设。例如： 
If I were to tell you that I killed him, would you believe me?要是我告诉你是我杀了他，你会相信吗？ 
9.be to blame(该受责备，对某坏事应负责任)与be to let(待出租)两种结构中，用不定式的主动形式表示被动含义。例如： 
Which driver is to blame for the accident?这事故是哪个司机责任？