Unit 3 Section Ⅱ Faster, higher, stronger　Using language—Grammar & Integrated skills课件(共56张PPT+ 学案）

英语　选择性必修 第一册 WY Section Ⅱ　Using language—Grammar & Integrated skills Grammar(动词 ing形式/动名词作主语) ①Since then, finding ways to grow more rice has been his life goal. ②Spending money on himself or leading a comfortable life also means very little to him. ③Just dreaming for things, however, costs nothing. ④Mary's being late for class made her teacher angry. ⑤It is no use arguing with him about such a matter. (1)以上动名词短语(黑体部分)在句中作主语的是_____。 (2)例句④中为_____作主语。 (3)例句⑤中it作_____。 答案：(1)①②③④⑤　(2)动名词的复合结构　(3)形式主语 一、动名词的概念及形式 1．动名词由动词原形加－ing构成，与现在分词形式相同。动名词可以起名词的作用，在句中作主语和宾语等；同时，它还保留着某些动词的特征，如有完成式和被动语态，可以有自己的宾语和状语。 2．以动词do为例，动名词的形式为： 肯定式 doing 否定式 not doing 完成式 having done 被动式 being done/having been done 二、动名词作主语 1．在句首直接作主语，往往表示经常性、习惯性的动作。 ①Reading aloud is a good way to learn a language. 大声朗读是学习语言的一种好方法。 ②Wasting a person's time is the same as killing him for his property. 浪费别人的时间无异于谋财害命。 单句表达 ①玩火危险。 _____ is dangerous. ②看电影是我最喜欢的消遣。 _____ is my favorite pastime. ③夏天游泳是一项好的体育运动。 _____ in summer. 答案：①Playing with fire　②Watching films　③Swimming is a good sport 2．it作形式主语，句中的动名词作真正的主语。 It's a waste of time doing sth 做某事是浪费时间 It's useless/worthwhile doing sth 做某事没用/是值得的 It's no good/use/fun doing sth 做某事没好处/没用/没意思 ①It is a waste of time persuading such a person to join us. 劝说这种人加入我们是浪费时间。 ②It is no use waiting for other people to make decisions for you. 等别人替你做决定是没有用的。 单句语法填空 ①It is a waste of time _____ (try) to persuade him to give up playing computer games. ②It is worthwhile _____ (read) such a wonderful novel. ③It's no use _____ (complain) without taking action. 答案：①trying　②reading　③complaining 3．“There be＋no＋动名词”结构中，动名词作主语，表示不允许、禁止某种行为的发生或存在。 ①There is no denying that the environment is from bad to worse. 不可否认环境状况正在逐步恶化。 ②There is no joking about such matters. 这种事开不得玩笑。 名师点津 动名词的逻辑主语原则上是在动名词前用物主代词或名词所有格。 ①Her coming to help encouraged all of us. 她来帮忙鼓舞了我们所有人。 ②Tom's winning the first prize last year impressed me a lot. 汤姆去年得了一等奖使我印象深刻。 单句表达 ①不能说出他要做什么。 _____ what he is going to do. ②未来的事无法知道。 _____ what may happen. 答案：①There is no telling　②There is no knowing 4．动名词作主语，谓语动词用单数。 Working in these conditions is not a pleasure but a suffer. 在这种工作条件下工作不是一件愉快的事而是一件痛苦的事。 单句语法填空 ①Playing computer games _____ (be) a waste of time. ②_____ (sing) is his hobby. 答案：①is　②Singing 三、动名词作主语与不定式作主语的区别 动名词作主语时，通常表示抽象动作，往往是 ... ...