列举加TO DO 和DOING的词答:c) 在attempt, intend, begin, start 后接know, understand, realize这类动词时,常用不定式to do。例如:I begin to understand the truth。我开始明白真相。 d) 事物作主语时。例如:The snow began to melt.雪开始融化了 12)感官动词 + doing/to do 感官动词 see, watch, observe, notice, look at, ...