Unit 1 Grammar and usage 教案-2022-2023学年高中英语牛津译林版（2020）必修第三册

Book 3 Unit 1 Nature in the balance Grammar and usage Ellipsis Teaching objectives: By the end of this section, students will be able to: 1. learn about the functions of ellipsis; 2. summarize the general rules of ellipsis; 3. apply the rules of ellipsis in the new context. Teaching important and difficult points: 1. To understand the functions and structures of ellipsis; 2. To apply the rules of ellipsis in the new context. Step1 Lead in Students enjoy a video from the movie The King’s Speech that they have watched before, and pay attention to the actors’ lines. Q:1. What are left out in the dialogue? (此对话省略了哪些内容呢？) Q:2. What is Ellipsis? Ellipsis means leaving out a word or words from a sentence. We can use ellipsis when the meaning can still be understood without using a word or certain words. In other words, ellipsis is used when you do not want to repeat some words or phrases whose meaning is obvious. Using ellipsis is an efficient way to make sentences concise（简洁）.为了使语言简洁或避免重复，省略句中的一个或几个句子成分，这种语法现象称为省略。运用省略手法，可以避免重复，使句子简练。 Step 2 Exploring the rules Today we will read another dialogue about a documentary on environmental protection made by Jack and Henry. Students read the dialogue in pairs and answer the following questions： 1.What is the documentary about? 2.How did Jack feel when watching the documentary? 3.What do the leading experts suggest doing to solve the environmental problems? Students write down the words that have been left out in the brackets below. 1. No, I didn’t (watch the documentary about environmental protection on TV yesterday). 2. You can watch it online if you want to ( ). 3. I felt worried when ( ) watching the documentary. 4. Some call for the application of modern technology, and others ( ) a change of lifestyle. 5. ( ) Got any ideas? 6. ( ) Sounds great! Students work out the rules in the table on P6. Step 3 Working out the rules When can we use elli