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句子成分 用法 例句 宾语 在一些及物动词，如demand，hope，decide，expect等后充当宾语； 常可用it充当形式宾语，在it与不定式之间夹个宾补，这时谓语动词常用think，believe，guess，suppose，feel，find等。 The workers demanded to get better pay. I hope to be admitted to a famous university. I found it necessary to talk with him again. 句子成分 用法 例句 表语 起名词作用，表主语的内容，回答主语“是什么”。 His job today is to clean the floor and sweep the yard. 句子成分 用法 例句 定语 与被修饰的名词之间常为逻辑上的主谓关系、动宾关系，或是动状关系等； 若被修饰的名词是不定式动作的工具，或是逻辑宾语，则要注意给不定式加相应的介词。 He is always the first / last to come. I have a lot of work to do. (I do the work.) I have a lot of work to be done. (Someone else will do the work.) We now have little time to play outside. You'd better find a house to live in. I have no pen to write with. 句子成分 用法 例句 状语 不定式在句中可充当目的状语、原因状语、结果状语等。 | 
