非谓语动词考点典型陷阱题分析1. everyone in our class was working hard and doing what we could _______ a good college.a. enter b. to enterc. entering d. entered【陷阱】容易误选a。有的同学一看到空格前的情态动词 could 就断定此处应填动词原形 enter。【分析】其实正确答案应是b。此句为省略句，即在 could 后省略了动词 do，若把句子补完整应为everyone in our class was working hard and doing what we could do to enter a good college。即句中的不定式短语to enter a good college是用作目的状语的，而不是与情态动词could一起构成谓语。请再看类似例句：1 they did what they could to comfort her. 他们尽量安慰她。2 they did everything they could to save her life.
