不定式在句子中的成分 讲义-2025届高三英语一轮复习

黑色 副词 红色 谓语动词 蓝色 代词 黄色 关系词 绿色 介词 紫色 名词 灰色 形容词 粉色 冠词 橙色 连词 茶色 数词 1 / 5 学科网（北京）股份有限公司 非谓语动词——不定式 1. 不定式作主语=it是形式主语 To give as much help as possible is our duty. To give as much help as possible is our duty. To give is our duty. To do=n.=主 To give is our duty. 主 系 表 as much help as possible 比较状语 as...as...副词比较级（同级比较） To give as much help as possible is our duty. 主 状语 系 表 To give is our duty. To do=n.=主系表 To do=n.=it it is our duty to give. (形式)主系表(真正的主语) It is our duty to give as much help as possible (形式)主系表(真正的主语)比较状语 To learn well is our goals. 主 系 表 It is our goals to learn well. (形式)主系表(真正的主语)状语 To go a great university is my hope. 主 系 表 It is my hope to go a great university. 形式主系表(真正的主语) 2. 不定式作宾语 I can’t afford to buy a car. I can’t afford to buy a car. to buy a car =n. I can’t afford to buy a car. 主 谓 宾 I prepare to eat an apple. 主 谓 宾 I’m preparing to go on a holiday. 主 谓 宾 to refuse his offer is not right. 主 系 表 =It is not right to refuse his offer. To demand is a perfect plan. 主 系 表 =It is a perfect plan to demand. To/go prepare a party for her. give her a prepared party 不定式作形式宾语 You may find it necessary to finish the work ahead of time. You may find it necessary to finish the work ahead of time. 主 谓 形式宾 宾补 真正的宾 状 =You may find to finish the work ahead of time necessary. You may find to finish the work ahead of time necessary. 主 谓 真正的宾 状 宾补 3. 不定式作表语=可以与主语互换位置 To see is to believe. To see is to believe. To see=n. to believe=n. To see is to believe. 主系表 =To believe is to see. To believe is to see. 主系表 Hearing is to fake. Hearing=n. to fake=n. Hearing is to fake. 主系表 To hear is to fake. to fake is hearing. to fake is to hear. 主系表 His wish is to become a teacher. 主系表 To become a teacher is his wish. 主系表 4. We are to meet at the school gate at six. Be to do表安排要做的事情 We are to meet at the school gate at six. 主 谓 地点状语 时间状语 ≠To meet at the school gate at six are we. ≠To meet at the school gate at six are we. 表 地点状语 时间状语 系 主 （错误） 6. She asks me to wash the dishes. She asks me to wash the dishes. 主 谓 宾 宾补 I require him to finish his homework. I remind her to go to school at 6 o’clock. 主 谓 宾 宾补 时间状 7. I hear him sing a song. I hear him (to) sing a song. 主 谓 宾 宾补 8.He was heard to sing a song. He was heard to sing a song. 主 谓 主补 9. He helped me (to) clean the room. He helped me (to) clean the room. 主 谓 宾 宾补 I look at her (to) dance. 主谓 宾 宾补 She was looked to dance. 主 谓 主补 I saw him (to) play basketball. 主谓 宾 宾补 He was seen to play basketball. 主 谓 主补 He help me to plant trees. I can help you to clean the room. This is a good opportunity to help me. 主系 表 定 This is the first to dance. 主系 表 定 $$