(
课件网) Unit 2 Healthy Lifestyle Discover Useful Structures Step 1 Lead in To change bad habits is never easy. Activity 1 What are the functions of the underlined parts It is not easy to break bad habits. Subject 1. It took the surgeon three hours to finish my mother’s lung surgery. 2. To join the people’s Liberation Army, it is required for men to shave off their beards. 3. It was not polite to disturb your neighbors with loud music last night. Translate the sentences into Chinese and discuss the functions of the underlined parts Subject 1. To prevent harmful habits like these from dominating a teenager's life is essential. 2. To change bad habits is never easy. It can be easy for some of them to form bad habits. It is not easy to break bad habits. Activity 2 Explore infinitive used as subject. (form, position) 1. 如何改变坏习惯是个问题。 2. 去哪儿还没有讨论。 3. 还没决定是否坐飞机去巴黎。 1. How to break the bad habit is a question. 2. Where to go has not been discussed. 3. It has not been decided whether to fly to Paris. Beginning End Interrogative + to do Infinitive phrases Position Form Step 2 Explore 1. It took the surgeon three hours to finish my mother’s lung surgery. 2. To join the people’s Liberation Army, it is required for men to shave off their beards. It was not polite to disturb your neighbors with loud music last night. It is important to avoid passive cigarette smoking. Activity 2 Explore infinitive used as subject. (function) State a fact. Give advice. 对于我们来说早起很困难。 你真的很善良帮我解决了这个问题。 1. It is difficult for us to get up early. 2. It is kind of you to help me deal with the problem. Activity 2 Explore infinitive used as subject. (Compound infinitive) To change bad habits _____ (be) never easy. Activity 2 Explore infinitive used as subject. （Subject-predicate agreement） is Predicate-- Single form To be working all day long is a bore. To have made the same mistake twice is unforgivable. To love and to be loved is the great happiness. Continuous form of the infinitive Perfect form of the infinitive Passive form of the infinitive Activity 2 Explore infinitive used as subject. (The tense and voice of the infinitive) _____ (do) morning exercises regularly is good for your health. It feels really good _____ (do) morning exercises today. Doing to do Regular or habitual action Specific action Activity 3 Explore the difference between infinitive and gerund used as subject. Activity 4 Join the words to make full sentences using the infinitive. 1. important/avoid/passive cigarette smoking. It is important to avoid passive cigarette smoking. 2. will take/nutrition specialist/a balanced diet menu/make /an hour/for you. It will take a nutrition specialist an hour for you to make a balanced diet menu. 3. useful/turn to/fitness consultant/for advice It is useful to turn to a fitness consultant for advice. 4. illegal /dangerous/take /drugs It is dangerous to tak ... ...
