Unit 5 Learning from Nature Using language Grammar 学案-2023-2024学年高二英语外研版（2019）选择性必修第三册

【学生版】Unit 5 Period 2 Grammar（配套） 【学习目标】 Learning Objectives 1 To review the usage of non-finite forms as subject, object and predicative 2 To use non-finite forms as subject, object and predicative 【学习过程】 Learning activities 目标一: To review the usage of non-finite forms as subject, object and predicative Activity 1: Look at the sentences from the reading passage and answer the questions. a Today, architects continue to explore ways to capture the beauty of natural forms,... b... it appears to float above the waterfront promenade and the water that surrounds it. c Visitors are often amazed to find themselves in an urban building that so truly captures the beauty of natural forms. d Creating buildings such as these enables us to live in closer harmony with our environment. 1 Look at the “to do” structures in sentences (a) and (b). Do they serve the same function in each sentence? 2 In sentence (c), is the -ed form used as an adjective or a past participle? Why does the author use the -ed form other than the -ing form? 3 What is the function of the -ing form in sentence (d)? Answers: _______________________________________________ _______________________________________________ Now look for more sentences with these structures in the reading passage. _______________________________________________ _______________________________________________ Activity 2: Read the following groups of sentences, do the summary. Group 1: 1.Knowing basic first-aid techniques will help you respond quickly to emergencies. 2.It is no use complaining without taking action. 3.To climb the mountain is hard work but to go down the mountain is great fun. 4.It is not easy to find your way around the town. Summary: 1 以上句子都是______________。-ing形式作主语表示一般的、抽象的、泛指的概念，常用it作形式主语。常用于固定句型：It’s a waste of time doing...；It’s no use/good doing...；It is useless doing...；There is no doing...等中。 2 不定式作主语，一般表示具体某一次的动作。常用________作形式主语。 3 it作形式主语时，____________是真正的主语，放在句子后部，以使句子保持平衡。 Group 2: 1. My Englis