Unit 2 Grammar 动词不定式作主语课件-2022-2023学年高中英语人教版（2019）选择性必修第三册

高中英语选择性必修三 Unit 2 动词不定式作主语 复习： 不定式作表语 翻译：尊重别人就是尊重自己。 To respect others is to be respected. 第一件事就是找个地方住。 The first thing was to find a place to stay. 你要做的就是好好休息，遵医嘱。 What you have to do is to have a good rest and follow the doctor's advice. 这个课程的目的是培养我们对英语学习的兴趣和听说的实践能力。 The purpose of this programme is to develop our interest in English learning and practical abilities in listening and speaking. 新知： 不定式作主语 一.形式： To hesitate means failure. 犹豫不决就意味着失败。 It’s honored to give a speech with the title of “Be Smart Online Learners”. 我很荣幸能做以“做聪明的在线学习者”为题目的演讲。 How to construct the theoretical framework is very important. 怎样构建理论框架很重要。 二、意义： 不定式作主语,常常表示一次具体的动作 比较： Her job is taking care of children. 她的工作是照料小孩。（泛指概念） Her job is to take care of the children. 她的工作是照料这些小孩。（特指本次的工作） 三、用法： 1.直接放句首 To change bad habits is never easy. 2.放在句中或句尾作真正主语，句首用it It took extra time to do the job properly. 三、运用： 1.语法填空 　　　 　 　（control） the air pollution is necessary. It is out duty 　　 (protect) the country against its enemies. To control/Controlling to protect (2019全国卷Ⅲ) On our way to the house, it was raining so hard that we couldn’t help wondering how long it would take _________ (get) there. to get 写作佳句： 1.说是一回事，做又是另一回事。 To say is one thing and to do is another. 2.爱与被爱是一个人能获得的最大幸福。 To love and to be loved is the greatest happiness one can get. 3.想不下苦功就能学会外语是不可能的。 _____________________________________ without making painstaking effort. 4.最近，过低碳生活很受欢迎。 Recently, it is very popular to live a low-carbon life. It is impossible to learn a foreign language 高老链接： (2021·全国甲卷)The Xi'an City Wall is the most complete city wall that has survived China's long history.It_________ (build) originally to protect the city______ the Tang dynasty and has now been completely restored.It is possible _________ (walk) or bike the entire 14 kilometers. was built in to walk 作业： 完成本课时的语篇练习 $