Unit1 Nature in the balance Grammar and usage 课件-2023-2024学年高中英语牛津译林版（2020）必修第三册

Grammar & Usage (I) Ellipsis Unit 1 Nature in the balance 1 • No smoking. • Parking. • No photos. • No fishing. Step 1 Lead-in Elliptical sentences Have you ever watched any TV programmes about environmental protection? What was it about? A Exploring the rules 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! I was watch it call for Have you It/That Complete the sentences of part A below the conversation on page 6 简短回答 不定式后的省略 连词 if, when and while等后的省略 句型相同的句子中谓语的省略 非正式场合句子开头 Think about the following questions: 1. What is ellipsis? 2. When can we use ellipsis? 3. What's the function of ellipsis? P98 为了避免重复 为了使句子简洁 1. You should be careful when crossing the road. 2. When asked a lot of questions, I felt very nervous. 3. You must keep these point in mind while setting your goals. 4. If admitted, I will appreciate it very much. 5. Please call me back if possible. 6. Though shocked , she tried to keep calm. 7. As expected, people all felt shocked by the news. 8. You need to make improvements where necessary. 状语从句的省略 (1)在when, whenever, while, until, once, if, unless, once , though, whether, even though, ,even if,although, as, just as, where, wherever 等连接的状语从句中，当从句主语跟主句的主语相同且从句谓语中含有系动词be或从句的主语为it时，则从句中主语和be动词常被省略。 状语句中的省略 时条让方地 主语同，谓语be 两者省不可惜 7 9. I love English more than ever. 10. What I said made Jack happy but Jane angry. 11. Drive less, and we will have a greener world. 12. You can watch it online if you want to. than expected 比预期… as expected 正如预期… unless invited 除非被邀请 if not 若非如此 if so 如果是这样 if any/ if ever 如果有的话 if possible 如果有可能