Unit 5 A Delicate World Period 2 Grammar学案- 2023-2024学年高二英语外研版（2019）选择性必修第二册

Unit 5 Period 2 Grammar 【学习目标】 Learning Objectives 1 To know the usage of it as an empty object 2 To use it as an empty object correctly 【学习过程】 Learning activities 目标一: To know the usage of it as an empty object Activity 1: Look at the sentences and answer the questions. Sentence (a) and (c) are from the reading passage. a. No visitor would think it surprising that the island is a UNESCO World Heritage Site. b. No visitor would think that 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. 1 What does “it” refer to in the sentences (a) and (c)? 2 What is the difference between the sentences in each group? Answers: _______________________________________________________________________________ _______________________________________________________________________________ Now look for more sentences with this structure in the reading passage, and summarise its uses in your own words. _______________________________________________________________________________ _______________________________________________________________________________ Activity 2: Read the following sentences and summarise what can be used it as an empty object. 1 They felt it difficult to finish the work in such a short time. 2 He thought it absolutely senseless attempting the impossible. 3 I took it for granted that they would not come. Summary: 我发现，可以用it作形式宾语替代的成分有：______________，______________，______________。 目标二: To use it as an empty object correctly Activity 1: Rewrite the underlined parts using it as an empty object. 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. Recent years have seen more and more pet sliders escaping or