Unit 2 Period 2 Learning about Language 含交互动画（课件）英语人教版选择性必修第三册

该高中英语课件围绕“不定式作主语”语法结构展开，以“Health Hut魔法咒语”情境导入，通过词汇填空、短语搭配及语法句式分析，构建从词汇积累到语法应用的学习支架，衔接健康生活方式主题与语言知识。 其亮点在于情境化设计激发学习兴趣，通过对比不定式与动名词作主语培养思维品质，结合自我评估表提升学习能力。实例丰富如对话练习、BMI分类应用，助力学生在健康话题中掌握语法，教师可高效开展语言能力与思维品质培养。

null Unit 2 Healthy Lifestyle Learning About Language 目 录 Lead-in Build up your vocabulary Language Points Discover Useful Structures Self-evaluation Homework Lead-in the "Health Hut" in the Health Forest has lost its magic, and the residents have become listless! According to legend, only by reciting the correct "Health Magic Spells" can we awaken the hut's energy. These spells hold a special grammatical secret — today we are going to unlock the magic of "infinitives as subjects" and save the Health Hut! 此处有超链接动画 Build up your vocabulary Read for main idea and structure 1. Complete the summary using the words from the box. Teenagers often have bad habits. Most can be stopped by taking ___________ action. However, habits like _____________ and ______________ abuse can lead to serious addictions. According to modern __________, to change bad habits, we must first analyse them using the “habit ______ ”. To fix or improve a bad habit, we must first find out what the ____ is. Then we must change the old ________ routine to something more positive. If successful, we will feel a sense of ________ and our bad habit may disappear. Changing a bad habit is difficult and it is easy to make excuses and give up. We need to make up our minds and show some _________, and make small changes over time. There is no magic ____ to help us, but changing will ensure we have a happy and healthy life! alcohol appropriate cue cycle negative pill psychology reward tobacco discipline form a habit _______________________________________________ change a habit _______________________________________________ __________ _______________________________________________ __________ _______________________________________________ __________ _______________________________________________ We often form a habit without realising it. The expert gave us some tips on how to change bad habits. prevent a habit Of course, it is better to prevent a bad habit than break one! recognise a habit To recognise a bad habit is the first step. break a habit Be disciplined and don’t give up trying to break your bad habit! 2. Find “verb + a habit” collocations from the previous text. Then make sentences with them. Read for main idea and structure “Verb + a habit” collocations habit prevent break develop recognize change form I would like to change my habit of buying junk food and soft drinks. It is essential to prevent such a bad habit. It is crucial to develop a habit of exercising regularly. If we don’t recognize a bad habit, it will do harm to us. It is good to form a habit of reading an English article in China Daily every day. 3. Complete the passage using the correct forms of the words in the box. Add more sentences or paragraphs to the passage if possible. Simply speaking, a healthy lifestyle is about finding the right balance and making good choices. Life is composed of many elements, such as family, friends, study, work, entertainment, and so on. If one element ____________ your life and the others are ignored, you will lose balance and not feel good. Carefully _________ your daily activities. Your health _________ what you choose to do in your daily life. A healthy lifestyle is generally a balanced life in which you make wise choices. Neither too much nor too little is good. Slowly ___________ changes in your lifestyle by using a step-by-step process. You do not have to change everything at once. Make small changes each day and your lifestyle will become healthier. examine dominate facilitate rely on relies on facilitate dominates examine Language Points 1. dominate vt. 支配，控制—— dominance n. 统治 dominate the match 在比赛中占上风 be dominated by　 由……主宰 这个地区的地貌以广袤的森林和起伏的山丘为主。 The landscape of this region is dominated by vast forests. English is the dominant language in international business. She has a dominating personality. —— dominant adj.占支配地位的—— dominating adj. 强势的 2. cue n. 提示，暗示 v. 给...暗示 她把他的点头当做开始展示的暗示。 She took his nod as a cue to start the presentation. 他通过点头暗示她开始演讲。 He cued her to start the music by nodding his head. right on cue 恰好在那个时候 当我们离开房子的时候，恰好雨开始下。 Right on cue, the rain started as soon as we left the house. Can you give me a clue to solve this riddle? 3. response n. 回应——respond v. 回应 in response to 作为对...回应 为回应你的请求，我写信简要介绍一下京剧。 I’m writing to have a brief introduction of Beijing Opera in response to your request. 为回应观众的强烈要求，该剧将在剧院里每周上演两次。 In response to the audience’s great demand, the play will be put on in the theatre twice a week. He didn’t respond _____ my question. = He made no response to my question. 即学即练 to 4. reward n. 回报 v. 奖励 —— rewarding adj.值得的 The company __________ its employees with a bonus for their hard work. The school ________ him a scholarship for his academic achievements. The old man gave the little boy a doll _______ a reward for his help. The old man gave the little boy a doll _______ reward for his help. Anyone providing information will ____________(reward). I believe that you will have a _________ (reward) experience there. It is widely accepted that young babies learn to do things because certain acts lead to _________(reward). 熟词再练 rewards rewarded awarded as in be rewarded rewarding 5. discipline n. 纪律 v. 管教 strict discipline 严格的纪律 observe discipline 遵守纪律 We’re looking for people from a wide range of disciplines. The new soldiers are undergoing strict military discipline. If a student doesn't behave properly in class, the teacher will discipline him. A _____________(discipline) army is essential for national security. disciplined 6. compose v. 创作，组成—— composer n. 作曲家 —— composition n. 作文，作曲 He composed a new melody on the piano. She needed some time to compose herself after the argument. be composed of 由...组成 =be comprised of = be made up of =consist of 这个团队由有才华的运动员组成。 The team is composed of talented athletes. We examined the rock to find out its (compose). composition 即学即练 7. skip v. 跳过—— skipped —— skipping She decided to skip the breakfast to catch the early train. You can skip the first chapter if you’re familiar with the background. She had to skip her favorite show because she had to work late. They are having a skipping competition. 不吃早餐 跳过 放弃 跳绳 8. stimulate v. 激发，刺激 stimulate the students' interest in science stimulated a heated debate stimulate economic growth stimulate sb. to do sth. 激励某人做某事 他的成功故事激励了许多年轻人去追求他们的梦想。 His success story stimulates many young people to pursue their dreams. 激发对科学的兴趣 引发激烈的讨论 刺激经济增长 9. dynamic a dynamic leader a dynamic market a dynamic performance dynamic forces The city has undergone dynamic changes in recent years. （人）有活力的 （物理学上）动力的 动态的（强调变化） （经济、市场）有活力的 同energetic, vigorous, lively （表演）生动的 10. be stressed out She remained calm and focused _______ the stress of the emergency situation. The teacher _______(lay) stress _______ the importance of learning English well. I think I’ve got one of the most ___________ (stress) jobs. You look really ____________ (stress) out lately. 焦虑不安 熟词再练 under laid on stressful stressed under the stress of 在...的压力下 Discover Useful Structures Look at the following sentences and pay attention to the italicized infinitives. subject 主语 subject 主语 subject 主语 subject 主语 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。 Change the sentence structures. it 动词不定式 It is never easy to change bad habits. 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. 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 Task 3: Summarize the sentence patterns with “it” and with infinitives as the subjects. It took the surgeon three hours to finish my mother’s lung surgery. To join the people’s Liberation Army, it is required for men to shave off their beards. It was not polite (of you) to disturb your neighbours with loud music last night. It is important to avoid passive cigarette smoking. It will take a nutrition specialist an hour to make a balanced diet menu for you. As a chef, it was my duty to cook, so I tried to vary the meals in whatever way I could. (Textbook, Page 104) It can be easy for some teenagers to form bad habits. (Textbook, Page 104) Tip 3: Sentence patterns with “it” and infinitives as the subjects ① It + is/ was + ________ + ________ sb + to do ② It is/was + ________ + to do ③ It + takes/ took/ will take sb. + ____________ + to do ④ It + is/ was ________ + for sb + to do Tip 3: Sentence patterns with “it” and infinitives as the subjects ① It + is/ was + ________ + ________ sb + to do ② It is/was + ________ + to do ③ It + takes/ took/ will take sb. + ____________ + to do ④ It + is/ was ________ + for sb + to do adj. for / of n. some time V-ed 【Practice】Use the correct words to fill in the blanks. It is smart ____ you to turn to a fitness consultant for advice. It is dangerous ____ you to take illegal drugs. of for Tip 4: 在 It + is/was + 形容词 + to do 的句式中, 当该形容词用以表示to do的特征时，使用 It is/was ＋ adj. ＋ ____ + sb. + to do；当该形容词用来表示不定式的逻辑主语(sb.)的性质、特征或品德时，使用 It is/was ＋ adj. ＋ ____ + sb. + to do。 for of Tip 5: 动词不定式可与疑问词when、where、how、what、which、who等组合，构成___________，在句中可作______、______和______。 不定式短语 Task 4: Observe and explore. When to start has not been decided yet. Do you know where to find Tom? My main concern is how to get there on time. subject 主语 object 宾语 predicative 表语 主语 宾语 表语 Use the correct forms of the words to fill in the blanks. ________ (read) aloud is good for your English learning. It is quite necessary ________ (read) it again. ________ (see) is to believe. ________ (see) is believing. 拓展: to do as the subject VS doing as the subject Reading to read To see Seeing Tip 6: 动词不定式和动名词作主语的区别： _______作主语特指一次性的、具体的动作；_______作主语泛指一般的或习惯性的动作。且作主语和表语的不定式或动名词需保持________。 to do doing 一致 But many people have the problem of overweight. be in control of decide on begin with making choices made up my mind How can we lose weight? Eat healthily Do exercise regularly Drink enough water Sleep enough Stick to a healthy lifestyle Task 5: Find more sentences with infinitives. to do to do 作主语位于句首，在谓语之前 to do 作主语位于谓语之后，It作形式主语 疑问词+to do 构成不定式短语，作主语 和-ing 作主语的区别 To read without reflecting is like eating without digesting. It takes sb. time/money to do sth. It is + adj. + (for/of sb.) to do sth. It is + n. + (for sb.) to do sth. to do 表示具体的，将来的动作 -ing 表示一般的，已经完成的动作 与疑问词who, whom, whose, what, which, when, where, how等连用 Summary Self-evaluation Things I can do Scores I can tell how to use “to do” structure as the subject. 5 3 1 I can use what I learned in this class in writing sentences. 5 3 1 I can tell the meanings of the key words and expressions. 5 3 1 I can share the importance of healthy lifestyle. 5 3 1 Homework Homework 1. Use infinitives to talk about healthy lifestyle. 2. Review what you have learned about the infinitives. To get healthy and get rid of bad habits, sometimes it is also a good idea to get professional help. It will take an hour for a nutrition specialist to make a balanced diet menu for you. It is also useful to turn to a fitness consultant for advice. You can also help yourself with some common sense. For example, it is harmful to skip breakfast too often. It is important to avoid passive cigarette smoking. And, of course, it is dangerous to take illegal drugs too. Sample： $