Question

His experiences as a volunteer in the quake-hit areas have changed his attitude toward society and _______ influence his future life．

A．is to

B．was going to

C．are to

D．were sure to

Answer 1

C

试题分析：句意：他在地震灾区作为志愿者的经历已经改变了他对社会的态度，并且将会影响他未来的生活。句中experience经历作为主语，可数名词，and后面缺少谓语动词，谓语动词要用复数形式。通过句意可知，影响应该是发生在将来，不定式to do 可以表示将来的动词，故选C.
点评：动词不定式的基本用法：动词不定式能起名词、形容词和副词的作用，可在句中作主语、表语、宾语补足语、定语和状语用。同时还要注意动词不定式可以将来，表目的，表原因，表结果，表方式等等。