Unit 2 Healthy Lifestyle Learning About Language Structures 教学设计-2023-2024学年高中英语人教版（2019）选择性必修第三册

教学设计 课程基本信息 学科 英语（人教版） 年级 高二 学期 春季 课题 高中英语选择性必修三Unit 2 Learning About Language: Structures 教科书 书 名：高中英语选择性必修第三册（Unit 2） 出版社：人民教育出版社 教学目标 By the end of this period, students will be able to: 1. master the usage of the infinitive as the subject. 2. use the relevant grammar flexibly and authentically in real situations. 3. understand the difference between the infinitive as the subject and the v. -ing form as the subject. 教学内容 教学重点： 1. Help students identify the usage of the infinitive as the subject. 2. Guide students to use the infinitive as the subject to express their own ideas. 教学难点： 1. How to use the infinitive as the subject in real situations. 教学过程 Activity 1 Look at the following sentences and pay attention to the italicized infinitives, and tell their meanings and functions. 1. To change bad habits is never easy. 2. It took the surgeon three hours to finish my mother's lung surgery. 3. To join the People's Liberation Army, it is required for men to shave off their beards. 4. It was not polite to disturb your neighbors with loud music last night. Summary 1:动词不定式在句中做主语，有时为了保持句子的平衡，避免头重脚轻，常用it做形式主语，而真正的主语放在句子的末尾。比如第2、3、4例句。 Activity 2 Fill in the blanks using the right form of the word, and try to change it into another sentence pattern. 1. It is important ______ Tom to get that job. It is kind ______ you to help me with my homework. 2. ______( talk ) with him is a great pleasure. → It is_______________________________ 3. ___________( help ) others is our duty. →______________________________ 4.It took Tom 2 hours ______________________ . (作准备) Summary 2 不定式作主语，it 做形式主语的常见结构： 1.It is +adj.+(for sb) to do（修饰物的形容词） (adj.: easy ,difficult, comfortable, pleasant, light , dangerous， tiresome, interesting , heavy, fit) eg: It is easy for me to learn how to drive.学开车对我来说很轻松。 2.It is +adj.+(of sb) to do（修饰人品形容词） (adj: kind, good, nice, wise, unwise, clever, silly, stupid, foolish, careless, rude, polite, naughty) eg:It is clever