(
课件网) Lesson 3 Discovering Useful Structures Infinitives as the Subjects HEALTHY LIFESTYLE Learning objectives After this lesson, you will be able to: 1. understand the forms and functions of infinitives as the subjects; 2. use the infinitives flexibly and authentically in the real situations; 3. further discuss how to form a healthy lifestyle using infinitives of all types. 图片来自教材 图片来自教材 图片来自教材 To change bad habits is never easy. Look at the following sentences and pay attention to the italicized infinitives. subject 主语 subject 主语 subject 主语 subject 主语 It is never easy to change bad habits. Tip 1：将形式主语 _____ 置于句首，_____ 置于句末，可以 避免句子头重脚轻、结构失衡。 it 动词不定式 Change the sentence structures. Change the sentence structures. To finish my mother’s surgery took the surgeon three hours. To shave off their beards is required (for men). To disturb your neighbours with loud music last night was not polite. It is never easy to change bad habits. Page 14~15 1 2 3 4 5 6 Task 1: Find more infinitives as the subjects. 1. However, during this period, it can be easy for some of them to form bad habits. 2. To prevent harmful habits like these from dominating a teenager's life is essential. 3. To change bad habits is never easy, even with many attempts. 4. After all, it is not easy to break bad habits. It is essential to prevent harmful habits like these from dominating a teenager’s life. It is never easy to change bad habits, even with many attempts. However, during this period, to form bad habits can be easy for some of them. After all, to break bad habits is not easy. Change the sentence structures. Translate the sentences from English to Chinese and then from Chinese to English. 1. However, during this period, it can be easy for some of them to form bad habits. 但是，在此期间，他们中的一些人很容易养成不良习惯。 2. To prevent harmful habits like these from dominating a teenager's life is essential. 防止像这样的有害习惯主宰青少年的生活是至关重要的。 3. To change bad habits is never easy, even with many attempts. 改变坏习惯绝非易事，即使尝试了很多次。 4. After all, it is not easy to break bad habits. 毕竟，要改掉坏习惯并不容易。 Tip 2: 动词不定式作主语时，谓语动词常用_____。 To change bad habits is never easy. To help others gives a person satisfaction. To prevent harmful habits like these from dominating a teenager’s life is essential. Task 2: Observe and explore. 单数 图片来自网络 It will take a nutrition specialist an hour to make a balanced diet menu for you. It is useful to turn to a fitness consultant for advice. It is dangerous to take illegal drugs. It is harmful to skip breakfast too often. 【Practice】 Use infinitives as the subjects. To get healthy and get rid of bad habits, sometimes it is also a good idea to get professional help. It will take a nutrition specialist an hour to make a balanced diet menu for you. It is also useful to tur ... ...
