关于不定式答:3) to be +形容词 Seem, appear, be said, be supposed, be believed, be thought, be known, be reported, hope, wish, desire, want, plan, expect, mean… The book is believed to be uninteresting. 人们认为这本书没什么意思。 4) there be+不定式 believe, expect, intend, like, love, mean...