Unit 5 A delicate world Using language 教案-2022-2023学年高中英语外研版（2019）选择性必修第二册

Unit5 A delicate world Period3 Using language Topic It as an empty object Teacher Teaching Aims: 1.Guide the students to find and summarize the usage and composition of it as a empty object. 2.Guide the students to think about the formation and use of it as a empty object. Teaching important Points: Guide the students to practice the use of it as a empty object in a real context to strengthen the grammar. Teaching difficult points: Guide the students to rewrite some sentences using it as a empty object. Teaching methods: Introduction method Teaching type: Grammar 课 时 two Teaching procedure: Teaching contents: Step1: Leading-in Step2: Step3; Summary it常可代替不定式(短语)、动名词(短语)或从句在句子中作形式宾语，而将真正的宾语放在句子后面。 用法 1．it作形式宾语代替动词不定式(短语) (1)think/find/feel/consider/make/regard...＋it＋形容词＋不定式(短语) I find it pleasant to work with him.(it作形式宾语，代替不定式短语to work with him) 我觉得和他一起工作很愉快。 They felt it difficult to finish the work in such a short time.(it作形式宾语，代替不定式短语to finish the work in such a short time) 他们认为在这么短的时间内完成这项工作是困难的。 (2)think/find/feel/consider/make/regard...＋it＋名词＋不定式(短语) She thinks it her duty to help us.(it作形式宾语，代替不定式短语to help us) 她觉得帮助我们是她的责任。 I think it my honor to be invited to speak here.(it作形式宾语，代替不定式短语to be invited to speak here) 我觉得应邀在这里演讲是我的荣幸。 2．it作形式宾语代替动名词(短语) 动词＋it＋no good/no use/useless/a waste of time/worth one's while等＋doing... I'll make it worth your while telling me about his secret. 告诉我他的秘密，我会酬谢你的。 He thought it no use trying to convince them. 他认为企图说服他们没有用。 3．it作形式宾语代替从句 (1)动词＋it＋介词短语＋that从句 I took it for granted that they were not coming. 我想他们准是不会来了。 (2)动词＋it＋名词＋that从句 We all thought it a pity that the conference should have been canceled. 会议取消了我们都感到很遗憾。 (3)动词＋it＋形容词＋that从句 I find it necessary that we should spend more time practising spoken English. 我发现我们有必要花更多时间练习英语口语。 (4)动词appreciate/hate/love/like/dislike＋it＋if/when引导的宾语从句 He will appreciate it if they invite him. 如果他们邀请他，他将非常感激。 She hates it when he bragged that he was the most