:..舟楫英语课堂精通句子结构非谓语动词(一)动词不定式的功能不定式作主语asthesubject['sʌbdʒikt]不定式短语 + 谓语动词To know oneself is difficult./It's difficult to know 。To go to school on foot every day takes me half an hour./It takes me half an hour to go to school on foot every 。To read this book through will require time and patience./It will require time and patience to read this book 。It's + 形容词 + for/of+ 逻辑主语 + 不定式短语(It作形式主语)It's + 形容词(附表1) + of 逻辑主语 + 不定式短语It's very nice of you to be so 。(可改写为:)'s unwise of them to turn down the 。's + 形容词(附表2) + for逻辑主语 + 不定式短语It's not easy for you to get him to change his 。It's impossible for him to give up 。It's + 名词 + for +逻辑主语 + 不定式短语It is a great honor for us to be present at this 。rally['ræli]n. 集会patience['peiʃəns]n. 耐心, 忍耐, 毅力It will be a mistake for us not to help 。require [ri'kwaiə]v. 要求, 需要proposal[prə'pəuzəl]n. 求婚, 建议, 提议Itisapleasure(forme)。不定式作宾语astheobject['ɔbdʒikt]有些动词(附表3)常用动词不定式作宾语We agreed to meet here but so far she hasn't turned up ,但是到现在她都还没露面。。He offered to help 。主语 + 谓语动词 + it
