Unit 3 Sea Exploration Period 2 Review Useful Structures 课件 -2022-2023学年高中英语人教版（2019）选择性必修第四册

To do (Infinitives) 1 语法导入-to do 动词 谓语 非谓语 done doing to do 2 非谓语动词的形式如何确定？ 01 非谓语动词 3 时间特征 01 非谓语动词 After school, we went home while we talked and laughed at the same time.  时间特征1 ：非谓语动词和谓语动词同时发生-ing After school, we went home talking and laughing. 4 01 非谓语动词 “负鼠装死逃生” The possum played dead so that it could escape.  时间特征 时间特征2 ：非谓语动词在谓语动词之后（动词不定式） The possum played dead to escape. 5 01 非谓语动词 “自从得了精神病，整个人精神多了。” Since I became a psyche, I have always been in high spirits.  时间特征 时间特征3 ：非谓语动词先于谓语动词 （明显先后关系） Having become a psyche, I have always been in high spirits. 6 01 非谓语动词 I have never head a song sung so terribly. I have never heard a person sing so terribly. 语态特征 （与逻辑主语的关系） 非谓语动词充当宾补时，根据宾语判断主动被动 7 01 非谓语动词 Playing the King of Glory, I am no match for a primary student. Played throughout the country, the King of Glory is the most successful game. 语态特征 非谓语动词充当状语时，根据主语判断主动被动 8 01 非谓语动词 The girl eating durian on bus was despised. It is hard to imagine the amount of durian eaten every year. 语态特征 非谓语动词充当定语时，根据被修饰词判断主动被动 9 非谓语动词基本公式 to do -主动+将来: He promised to make greater efforts in the future. doing-主动+进行: Walking in the rain, she felt quite tranquil. done -被动+完成: This is the first time I have heard the song sung in French. to be done-被动+将来: These are the words to be studied tomorrow. being done-被动+进行: The boy being scolded is Xiaoming. having done-主动+完成: Having finished the letter, she folded it. having been done-被动+完成: I forgot once having been taken to the sea. 10 To do 主动形式 被动形式 时间特征 一般式 to do to be done 不定式的动作与句中谓语动词的动作同时发生或在其后发生 进行式 to be doing / 不定式的动作与句中谓语动词的动作同时发生 完成式 to have done to have been done 不定式的动作发生在句中谓语动词的动作之前 11 To do 翻译句子 1. 节约时间就是延长生命。 __________________________________________________. 2.仰望星空，人们总是想要更多地了解太空。 ___________________________________________________________. 3. 我们认为Tom是我们班最棒的学生之一。 ___________________________________________________. To save time is to lengthen life. Looking at the stars, people have always