Section_ⅢGrammar - 非谓语动词

　　语法图解

　　探究发现

　　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.

　　[我的发现]

　　(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。

非谓语动词是指在句中不能充当谓语，而是起其他语法功能的动词。非谓语动词有三种：动词不定式、动名词和分词(包括现在分词和过去分词)。非谓语动词没有人称和数的