Unit 4 Grammar and usage 课件 2021-2022学年牛津译林版（2020）高中英语选择性必修第一册

Unit 4 Exploring poetry Grammar and usage Grammar and usage Overview of to-infinitives, verb-ing and verb-ed forms Lead-in 1. What are the main types of non-finite verbs? To-infinitives, verb-ing forms and verb-ed forms. 2. What can to-infinitives, verb-ing and verb-ed forms be used as in a sentence? Exploring the rules 1. To cook Chinese food is not easy. 2. My first thought at mealtimes was to eat at a restaurant. 3. Alice Brown, head teacher at Falmont Primary School, was teaching when the floor began to shake. 4. We can always expect him to help us. 5. I was staying in Atlanta, and that was one of the cities to be hit. 6. That morning, I turned on the TV for some local news, only to hear that a hurricane was on its way. To-infinitives in sentences from previous units subject predicative object attributive adverbial object complement Verb-ing forms in sentences from previous units 1. Sliding into the habit was easy, but it was difficult to quit the habit. 2. It was