四川建筑职业技术学院：《大学英语》课程PPT教学课件（3级考试）第四讲 不定式语法

外语系彭巾又

不定式语法→●教学计划 课时章节 The Infinitive 课时教学目标 I. Introduce what the infinitive is IL. Explain the usage of 新课教学要点及教学难点分析 教学教学 方法时间 L. The infinitive is used as the subject To compromise appears advisable. 课时教学过程设计 A. It+ be adi. t to do B. It+ be + n. t to do C. It +v+ to do D. It+ be prepositional phrases to do Teaching 35 I. The tense and the voice of the infinitive to do/to be done to be doing to have been doing to have done/ to have been done 2021/2/22

2021/2/22 2 不定式语法→ 教学计划 课时章节 The Infinitive 课时教学目标 I. Introduce what the infinitive is. II. Explain the usage of. 课 时 教 学 过 程 设 计 新课教学要点及教学难点分析 教学 方法 教学 时间 I. The infinitive is used as the subject. To compromise appears advisable. A. It + be + adj. + to do B. It + be + n. + to do C. It + v. + to do D. It + be +prepositional phrases + to do II. The tense and the voice of the infinitive. to do/to be done to be doing to have been doing to have done/ to have been done Teaching 35

不定式语法→●教学计划 I. The infinitive is used as the predicate IL. The infinitive is used as the object t* IIl. The infinitive is used as the attribute Teaching IV. The infinitive is used as the predicative 课时教学过程设计 V. The logical subject 小结 教学教学 方法时间 The usage of the infinitive is important in SCET-3 i We must spend more time on it and practice more Narrating 作业布置 The exercises on the reference books 2021/2/22

2021/2/22 3 不定式语法→ 教学计划 续 课 时 教 学 过 程 设 计 I. The infinitive is used as the predicate. II. The infinitive is used as the object. III. The infinitive is used as the attribute. IV. The infinitive is used as the predicative. V. The logical subject. Teaching 55' 小 结 教学 方法 教学 时间 The usage of the infinitive is important in SCET-3. We must spend more time on it and practice more. Narrating 10' 作 业 布 置 The exercises on the reference books

不定式语法→○不定式概述 构成谓语 动词不定式 不定式的 (to+动词原形 时态和语态 作主语 是一种非谓语动 词形式,它不能 单独作谓语,但 不定式的 可以有自己的宾 疑问式 作宾语 语、状语、补足 语等,并和它们 不定式 起构成不定式 短语,在句中作 不定式的 作定语 主语、谓语、表 否定形式 语、宾语、定语 状语和补足语, 动词不定式也有 不定式的 逻辑主语 作状语 时态和语态的变 化,是三级常考 作表语 点之 2021/2/22

2021/2/22 4 不定式语法→ 不定式概述 不定式的 时态和语态 不定式的 疑问式 不定式的 否定形式 不定式的 逻辑主语 作表语 作状语 作定语 作宾语 作主语 构成谓语 不定式 动 词不定式 （to+ 动词原形） 是一种非谓语动 词形式，它不能 单独作谓语，但 可以有自己的宾 语、状语、补足 语等，并和它们 一起构成不定式 短语，在句中作 主语、谓语、表 语、宾语、定语、 状语和补足语， 动词不定式也有 时态和语态的变 化，是三级常考 点之一

不定式语法→①不定式构成谓语 不定式构成谓语有下面几种方式: 1)不带to的不定式和某些助动词构成谓语 Shall I help you I will be back right now 2)不带to的不定式和情态动词构成谓语 We must keep this in mind How can we convince him? 3)不定式和某些动词构成谓语 She happened to live in the same area You appear to have traveled a lot 2021/2/22

2021/2/22 5 不定式语法→ 不定式构成谓语 不定式构成谓语有下面几种方式： 1)不带to的不定式和某些助动词构成谓语 Shall I help you? I will be back right now. 2)不带to的不定式和情态动词构成谓语 We must keep this in mind. How can we convince him? 3)不定式和某些动词构成谓语 She happened to live in the same area. You appear to have traveled a lot. 1

不定式语法→①不定式构成谓语 )不定式和某些形容词构成谓语 Madame is sure to be right He is certain to return 5)不定式和某些被动结构构成复合谓语 He is said to have been in China many times This was thought to be impossible 2021/2/22

2021/2/22 6 不定式语法→ 不定式构成谓语 4)不定式和某些形容词构成谓语 Madame is sure to be right. He is certain to return. 5)不定式和某些被动结构构成复合谓语 He is said to have been in China many times. This was thought to be impossible. 1

不定式语法→●目录 构成谓语 不定式的 时态和语态 作主语 不定式的 疑问式 作宾语 不定式 不定式的 否定形式 作定语 不定式的 逻辑主语 作状语 作表语 2021/2/22

2021/2/22 7 不定式语法→ 目录 不定式的 时态和语态 不定式的 疑问式 不定式的 否定形式 不定式的 逻辑主语 作表语 作状语 作定语 作宾语 作主语 构成谓语 不定式

不定式语法→②不定式作主语 不定式可以作主语,不定式作主语谓语用 单数: To compromise appears advisable To stop the work now seems impossible 但在更多情况下都用“it”作先行主语,而把不 定式这个真正的主语放到句子后面去,这样可使主 语不至显得太长,避免头重脚轻的现象,常见的这 类句子有以下几种: 2021/2/22

2021/2/22 8 不定式语法→ 不定式作主语 不定式可以作主语，不定式作主语谓语用 单数： To compromise appears advisable. To stop the work now seems impossible. 但在更多情况下都用“it”作先行主语, 而把不 定式这个真正的主语放到句子后面去, 这样可使主 语不至显得太长, 避免头重脚轻的现象, 常见的这 类句子有以下几种： 2

不定式语法→②不定式作主语 1)tbe形容词+不定式 It is hard to say which is be It's foolish to act like that 2t+be名词+不定式 It's an honour to meet you It's our duty to obey the law 2021/2/22

2021/2/22 9 不定式语法→ 不定式作主语 1)It+be+形容词+不定式 It is hard to say which is better. It’s foolish to act like that. 2)It+be+名词+不定式 It’s an honour to meet you. It’s our duty to obey the law. 2

不定式语法→②不定式作主语 3)t动词(宾语)+不定式 It cost a lot of money to build this museum It requires patience to be a teach It took me two hours to find your ne 4)tbe+介词短语+不定式 It's against my principles to collaborate with them It's not within my power to change his vien 2021/2/22

2021/2/22 10 不定式语法→ 不定式作主语 3)It+动词（宾语）+不定式 It cost a lot of money to build this museum. It requires patience to be a teacher. It took me two hours to find your new house. 4)It+ be +介词短语+不定式 It’s against my principles to collaborate(合作) with them. It’s not within my power to change his view. 2