Unit 3 Discover Useful Structures 导学案-2023-2024学年高中英语人教版（2019）选择性必修第一册

XB1U3 Discovering Useful Structures导学案 Class:_____ Group:_____ No._________ Name:__________ 教师评价:____ 【Learning aims】 After learning this class, you are able to 1.Learn how to annalyse and identify the uses of–ing forms 2.Strenthen what students have learnt about–ing forms as subjects 3.Put what has been taught into practice 【Leading-in】 Fill in the blanks 1. Visiting theme parks can bring you into different world. 2. (打篮球） is a good way to relax. 3. ____________________(上大学） is my dream. the –ing form used as subject -ing形式作主语，相当于一个名词, 多指抽象、概念性的动作，经常性或习惯性行为。 【Content】 I. -ing形式作主语，通常直接置于句首。谓语动词用单数形式。 【观察例句】 ⑴ Talking is easier than doing. ⑵ Learning new words is very important for me. ⑶ Reading aloud is a good way in learning a language. ⑷ Playing with fire is dangerous. [Exercise] Translating the following sentences. 1. 阅读是扩大你的词汇量的一个好方法。(enlarge) 2. 沉迷手机是浪费时间的。 3. 争论此类事情无益。 4. 参加这个活动是值得的。 **【主谓一致】 1.Playing basketball me happy.（make） 2.Laughing at others impolite.(be) 3.Watching TV and reading books ____ interesting.(be) 4.Listening, speaking, reading and writing ____ basic skills of a language.(be) 单个v-ing作主语，谓语动词用_____； 两个或两个以上表达不同意义的v-ing作主语，谓语动词常用_____. 二. 有时可用it作形式主语前置，真正的主语是 -ing形式。 但这种句子形式有一定的限制，作表语的只能是某些形容词或少数名词。 【观察例句】 ⑴ It's worth making the effort. ⑵ It is pleasant working with you. ⑶ It's no use crying over split milk. ⑷ It was a waste of time reading that book. 常用-ing形式作主语的句型有： It + be + a waste of time doing … It is/was no good/pleasure/use/useless doing … It is/was hardly/scarcely worth doing … It is/was worth/worthwhile doing … There is no sense in doing 单句语法填空 1． (talk) with your kid heart to heart is very important. 2．It is no use (regret) your past mistakes. 3． (read) is an art. 4．Climbing mountains (be) really fun. 5．It is no good (cry) over spilt milk. *【V-ing 和 to do 作主语的区别】 Singing is my hobby, and to sing at my friend's birthday pa