人教版（2019）选择性必修第三册Unit 1 Art Using Language 语法内容：动词不定式作表语2 学案 （含答案）

选择性必修三 Unit 1 语法内容：动词不定式作表语2 一、动词不定式作表语的形式 情景导学 Perhaps the best way to understand Western art is to look at the development of Western painting over the centuries. 可能最好的了解西方艺术的方式是研究几个世纪以来西方绘画的发展。 (教材P2) During the Middle Ages, the purpose of Western art was to teach people about Christianity.在中世纪,西方艺术的目的是教人们认识基督教。 (教材P2) In this work, Monet's aim was to convey the light and movement in the scene... 在这幅作品里,莫奈的目的是传递场景中的光与运动…… (教材P3) What they attempted to do was (to) ask the question, “What is art ” 他们试图做的就是问这样一个问题:“什么是艺术 ” Our goal is to be admitted into the famous universities. 我们的目标是被著名的大学录取。 用法归纳 (1)以上句子中,系动词is或was后的动词不定式在句中作①　　 。 (2)动词不定式作表语时主语常是aim、way、goal、ambition、hope、idea、intention、plan、purpose、suggestion等或以它们为中心词的名词短语,以及②　　 引导的主语从句。 (3)动词不定式作表语,一般式为to do,被动式为③　　　 　　 。 ①表语 ②what ③to be done 二、动词不定式作表语和动名词作表语的区别 情景导学 My job is teaching. 我的工作是教书。 My job is to teach you English this term. 我的工作是这学期教你们英语。 His dream is to go to Harvard University while mine is to go to Peking University. 他的梦想就是上哈佛大学,而我的梦想是上北京大学。 There is no denying that our duty is serving the people heart and soul. 无可否认,我们的职责是全心全意为人民服务。 用法归纳 在表示抽象的、笼统的动作时多用④　　 作表语,在表示具体的、个别的动作时多用⑤　　 作表语,此外动词不定式还可以表示将要发生的动作。 ④动名词 ⑤动词不定式 三、动词不定式作表语时的特殊用法 情景导学1 What you ought to do now is (to) be more patient with and kinder to your children. 你现在应该做的是对你的孩子更有耐心、更和善。 In the evening, the only thing he did was (to) browse the blog. 晚上他做的唯一的事就是浏览博客。 用法归纳1 当主语部分含有实义动词do的某种形式时(do、did、does),作表语的动词不定式通常可省略⑥　 　 。 ⑥to 情景导学2 The house is to let, and those who are interested can contact the landlord. 这个房子要出租,有意向的人可以联系房东。 Who is to blame for the population decline of the tigers in that area 谁应该为那个地区老虎数量的下降负责任 用法归纳2 动词不定式to let和to blame用主动形式表示⑦　　 含义。 ⑦被动 即时巩固 Ⅰ.单句语法填空 1.The girl's intention of performing this song is 　　　 　 (convey) her deep love for her mother. 2.The best way to build sincere friendship is 　　　　 (trust) each other. 3.My plan for keeping healthy is 　　　　 (insist) on working out each day. 4.My main purpose is 　　　　 (help) them out when they get into trouble. 5.My favourite sport is　　　　 (climb)the mountain, but this afternoon what I want to do is　　　　 (swim)in the gym. Ⅱ.完成句子 1.这位高中生的愿望是代表学校参加英语演讲比赛。 What the senior high school student desired to do was 　　　　　　　　 the English speech contest on behalf of his school. 2.我最大的梦想是在我大学毕业后成为一 ... ...