【1】The knife with which he cut things ___________yesterday.

【2】He should have__________the Olympic 100metres squad.

【3】One of his sisters___________to raise his children after he was killed in a car accident.

【4】You won't__________if you don't try out.

【5】These children___________not only the joys of life but also disappointments.

【答案】

【1】was lost

【2】tried out for

【3】ahead of schedule

【4】take on the responsibility

【5】are prepared for

【解析】

【1】考查固定短语和动词时态。句意：他用来切东西的那把刀昨天丢了。结合句意表示“丢失”短语为be lost，且根据后文yesterday可知应用一般过去时，主语为knife，谓语动词用单数。故填was lost。

【2】考查固定短语和动词时态。句意：他本应该参加奥运会100米代表队的选拔。结合句意表示“参加选拔”短语为try out for，结合上文He should have可知为should have done结构。故填tried out for。

【3】考查动词时态。句意：在他死于车祸后，他的一个姐妹提前抚养了他的孩子。结合句意表示“提前”短语为ahead of schedule。故填ahead of schedule。

【4】考查固定短语和动词时态。句意：如果你不尝试，你就不会承担责任。结合句意表示“承担责任”短语为take on the responsibility，结合上文won’t可知应填动词原形。故填take on the responsibility。

【5】考查固定短语和动词时态。句意：这些孩子不仅要准备好迎接生活的欢乐，还要准备好迎接失望。结合句意表示“准备”短语为be prepared for。且陈述客观事实用一般现在时，主语为children，谓语动词用复数形式。故填are prepared for。