<正> 非谓语动词短语往往可以转化成各种从句。非谓语动词短语的这种从句作用如下: 1.相当于宾语从句 (1)I hope to be able to come.(=I hope that I will be able to come.) (2)I do not know how to do it.(=I do not know how I should do it.) 2.相当于定语从句 (1)He has a large family to support. (=He has a large family that he must support.)