首先,“be of + 名词”结构中的名词是抽象名词时,就相当于其名词所对应的形容词。比如: 1. "be of no interest" 等同于 "be not interesting",意思是“不感兴趣的”。 2. "be of great importance" 等同于 "be very important",意思是“非常重要的”。 再比如: - "The book is of great value."(...
it is+ 形容词+of sb.+ to do sth. ==sb.+ be+形容词+to do sth. 该句型中形容词用来描述不定式行为者的性格、品行等,形容词多为brave, careless, clever, polite, wrong, kind, good, nice, foolish, rude (粗鲁的), selfish(自私的)等。 It is + 形容词+ for sb. to do sth. = It’s ...