高考英语 语法专项突破 非谓语动词二课件 外研版
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Section ⅡGrammar——非谓语动词[语法图解][典句感知]①It was foolish of you to lie to your teacher.②It's no use trying to persuade him to change his mind.③Her wish is to go to Tokyo to watch the 2020 Olympic Games.④Our work is serving the people.⑤People want to know who Mona Lisa is and why she is smiling.⑥But they looked forward, too, by opening new frontiers in the arts.⑦The building being built is a new shopping mall.⑧The bird was lucky and escaped being caught.⑨Painted by Leonardo da Vinci in the years 1503—1506, the Mona Lisa is a mysterious masterpiece.⑩All things considered, she is the best student in my class.[语法领悟](1)①②句中的黑体部分在句中作主语,③④句中的作表语,⑤⑥句中的作宾语。
(2)由①②句可知,动词不定式和动词-ing形式作主语,可以用it 作形式主语。
(3)⑦⑧句中,黑体部分都为动词-ing形式的被动式,在句中分别为定语和宾语。
(4)⑨句中,黑体部分为过去分词在句中作状语;⑩句中,分词作状语时有自己独立的主语,这叫独立主格结构。
一、非谓语动词作主语1.v.-ing作主语(1)v.-ing作主语时常表示一般性的、习惯性的动作或者状态,v.-ing 有时态和语态的变化,且谓语动词通常用单数形式。