Unit3 Fascinating Parks -Discover Useful Structures课件-2020-2021学年高二英语上学期同步精品课堂（人教版2019选择性必修第一册）

人教版(2019)选修一第三单元 Unit 4 Fascinating Parks Discovering Useful Structures -V-ing. 形式作主语 Learning Objectives You are expected to: identify and grasp the functions and meaning of the -ing form; learn about the uses of the -ing form as the subject; apply the -ing form as the subject to introducing a place. Getting here is quite difficult. Being in such a beautiful and wild place makes me feel blessed to be alive. subject in the –ing form Lead in: Observe the sentences. + verb 动词-ing形式由“动词 + ing形式”构成, 该结构可以在句中作主语, 动词-ing形式作主语多指抽象的、概念性的动作, 可以是经常性的行为。 3 1. Her hobby is collecting stamps. 2. He found her a charming girl. 3. Checking my watch,I see it’s 7:30am. 4. She enjoys drawing. 5. I found a bag lying on the ground. 作表语 作定语 作状语 作宾语 作宾语补足语 What are the function of the –ing form in the sentences （一）动词-ing作主语的三种形式： 1. 直接放在句首，表示抽象的、经常的以及习惯性的动作或状态。动词-ing形式作主语时,根据主谓一致的原则,谓语动词使用________形式。但是意义不同的两个动词-ing形式并列作主语时,谓语动词要用_________形式。  (1) Learning to think critically is an important