Unit 2 Grammar and usage 课件-2022-2023学年高中英语牛津译林版（2020）必修第三册

Grammar & Usage (II) To-infinitives as attributives and adverbials of result Unit 2 Natural disasters 什么是非谓语动词? 非谓语动词有哪三种基本形式? 非谓语动词可以在句子中充当哪些成分? Learning Procedure Step1.Lead-in 指出下列句子中的谓语动词和非谓语动词 The girl making up is very lovely. 非谓语 谓语 这个化妆的女孩很可爱 指出下列句子中的谓语动词和非谓语动词。 The girl making up is very charming. 非谓语 谓语 We enjoyed the show given by these girls. 非谓语 谓语 我们喜欢这些女孩表演的节目。 Before the performance, they practiced many times to make sure that they could dance perfectly. 谓语 非谓语 谓语 动词 非谓语 动词 在句子中充当谓语的动词； 在句子中不充当谓语的动词；没有人称和数的变化 非谓语 不定式（to do) 动词ing形式 动词ed形式 非谓语在句子中可以做哪些成分？ 主，宾，定, 状, 表，补等 原则：一个句子中只能有一个谓语 如果一个句子里出现两个动词，可以用and或but来连接，把这两个动词并列起来作谓语。如果再有多的动词，就把它当作非谓语动词，用to do, ed, ing来表现。 动词不定式 动词不定式不能作句子的谓语，但它具有动词的一些特征，可以带有自己的宾语、状语及主语等。 非谓语动词 非谓语动词首先是一种动词形式，其次是这种动词形式不能做谓语，综合这两点，我们将其叫做非谓语动词。 一个句子当中，已经存在一个主句（谓语动词）,又没有连词的情况下, 还有别的动词出现时。 已经存在一个主句（谓语动词） 又没有连词的情况下, 还有别的动词出现时。 She got off the bus, but left her handbag on her seat. She got off the bus, leaving her handbag on her seat. 名称 语 法 功 能 主语 宾语 表语 定语 状语 宾语补足语 不定 式 √ √ √ √ √ √ 动名 词 √ √ √ √ 现在 分词 √ √ √ √ 过去 分词 √ √ √ √ To have a healthy diet keeps us fit. To finish your homework on time every day is your duty. 1.不定式作主语 形式主语 It keeps us fit to have a healthy diet. It is your duty to finish your homework on time every day. 熟记以下句型： It is + adj. + to do sth. It is + a/an + n (pleasure ,pity, crime, honor…) + to do sth It is +adj.+ for sb. +to do sth. It is +adj(表人品的)+ of sb.+ to do sth. It took(sb) some time / courage/ wisdom… +to do sth. It is no use/good /useful/ useless / a waste of time + doing sth. Practice makes perfect 每天阅读是很有用的。 对她来说获得这个奖是一个巨大的荣誉。 从超市买菜比从菜农那里买要贵。 It's more expensive to buy vegetables from supermarkets than from farmers. It is useful to read every day. It's a great honor for her to win this award 1. __________ is my dream _____________(travel) to the moon by spaceship. 2.It is an honor _________(get) the gold medal in the Olympics 3.It is necessary for us _______(be) cons