Unit 5 Using language 课件-2022-2023学年高中英语外研版（2019）选择性必修第二册

　UNIT 5　 A delicate world --- Using language 1. Students could learn some words and phrases. 2. Students could undestand the main usage of this grammar. 3. Students could write some a passage by using this grammar. Learning Aims: What is your understanding of this grammar？ Share you ideas with others it 做形式宾语 It as an empty object Before learning, please try to make a prediction of this passage. It as an empty object Brainstorming:Before reading this passage, what ideas come to your mind? 1. the usage of it 2. It as an empty subject 3. object Try to write your opinions in your notebook! It as an empty object What animals can you see in the picture? a No visitor would think it surprising that the island is a UNESCO World Heritage Site. b No visitor would think that the island being a UNESCO World Heritage Site is surprising. c Experts felt it necessary to come up with a plan to remove all the rabbits from the island. d Experts felt to come up with a plan to remove all the rabbits from the island was necessary. What does “it” refer to in sentences (a) and (c)? the island is a UNESCO World Heritage Site”. “to come up with a plan to remove all the rabbits from the island”. What animals can you see in the picture? a No visitor would think it surprising that the island is a UNESCO World Heritage Site. b No visitor would think that the island being a UNESCO World Heritage Site is surprising. c Experts felt it necessary to come up with a plan to remove all the rabbits from the island. d Experts felt to come up with a plan to remove all the rabbits from the island was necessary. What is the difference between these two groups? The sentences with “it” as an empty object Rewrite the underlined parts The red-eared slider, a species of freshwater turtle, is native to the Southern United States and Northern Mexico. Due to its cute appearance, many people think keeping this turtle as a pet is a good idea. many people think it a good idea to keep this turtle as a pet 9 Rewri