Unit 1 Festivals and Celebrations Discovering Useful Structures 导学案-2022-2023学年高中英语人教版（2019）必修第三册

Learning Guide V-ing Form Learning Objectives: 1.To understand the basic grammar rules of V-ing form; 2.To grasp some special rules of V-ing form; 3.To apply this grammar to the Gaokao. Learning procedure: Step 1 Lead in Listen to a song,and fill in the blanks: I don’t want to be left behind Distance was a friend of mine _breath in a web of lies I’ve spent most of my life _waves, _acrobat Shadow boxing the other half _how to react I’ve spent most of my time _my breath _it go _my cheek for the sake of the show Step 2 Exploring: Task 1:Review 1.She got off the bus, leaving her handbag on her seat. 2.She got off the bus, but left her handbag on her seat. 3.She left her handbag on the bus, which made her upset. 一般的,一个句子中已经存在一个_, 又没有_的情况下,或者在从句中不做谓语时,则该动词需要用_形式。非谓语动词有三种形式:_, _, _, 其中,doing表_. Task 2: Observe: 1._(hear)the news, she burst into tears. 2.The question_(discuss) now is important. 3._(make)full preparations, we are ready for the examination. 4._(criticize)by the teacher, he decided to study hard. Conclusion:动词-ing形式的基本结构: 主动 被动 一般式 完成式 当v-ing的动作与谓语动词的动作_发生时,用一般; 当v-ing的动作发生在谓语动词的动作_时,用完成式。 Task 3: Read the sentences below. What is the element(成分) of the -ing form in each sentence below? 1. Swimming is his favourite sport. 2. He enjoys swimming. 3. I found him swimming in the river. 4. His favourite sport is swimming. 5. He is the man swimming in the river just now. 6. Swimming in Summer ,we can get cool. Conclusion:动词-ing形式在句子中可以充当_, _, _, _, _, _。 Observe 1(作主语): 1. _ (sing) is their hobby. 2. _(do) exercise is the best way to lose weight. 3. _(fly) like birds is their dream. Conclusion 1:_形式可以作主语,往往表示_/_动作,谓语动词用_(单数/复数)。 Special rule: E.g.: Trying to escape is no use. It is no use trying to escape. 1. Seeing the film is worthwhile. _ is worthwhile _ the film 2. Playing computer games is a waste of time. _ is a waste of time _computer games. 3. Playing with friends is pleasant. _is pleasant _ with friends. Conclusion:当动词-ing作主语时,可以用_作形式主语,把真正的主语V-ing形式移置_。 常