Unit 3 The Internet Discovering useful structures 教学设计-2024-2025学年高中英语人教版（2019）必修第二册

周次 第五周 授课班级 高一5班 授课教师 刘倩 上课时间 周一第9节 课题 B2 Unit3 Grammar-The passive voice of the present perfect tense （现在完成时被动态） 学习目标 1.Students can learn the basic pattern and the usage of the perfect tense. 2.Students can use the structure precisely and freely. 感知与学习 一．Lead in----Watch a short video You have slain an enemy vs An enemy has been slain （Purpose:通过学生熟知的游戏台词让其感知现在完成时及其被动态的运用） 二．Presentation Review the knowledge about the present perfect tense and passive voice. （Purpose：通过复习现在完成时和被动语态，为现在完成时被动语态做好知识铺垫） Step1.定义 Step2结构 Step3用法 (1) 表示动作已完成, 强调过去的动作对现在造成的影响或结果, 主语和谓语之间为被动关系, 通常与already, yet, just, never, recently 等副词连用, 放在has/have的后面, 有时也可放在句末。 (2) 表示一个被动的动作或状态开始于过去, 持续到现在, 并可能持续下去, 常与for或since引导的时间状语连用, 或用于 “How long...？”句型中。 (3) 用在时间或条件状语从句中, 表示将来某时已完成的动作, 即用现在完成时的被动语态替代将来完成时的被动语态。 Step4 注意 1.不及物动词和不及物动词短语，没有被动语态。 如rise, happen, take place, break out, come about, survive, remain, last, die, disappear, end, fail, belong to, consist of... 2.虽然一般说来只有及物动词才有被动语态，但许多“不及物动词+副词或介词”构成的短语动词，相当于及物动词，也可以有被动语态，但变被动语态后，不可把介词或副词漏掉。 如laugh at, operate on , listen to , look after, take care of, think of , talk about , hand in, catch sight of, make use of, pay attention to, turn on… 3. borrow, begin, start, buy, marry, open, join，finish，return等非延续性动词的现在完成时的被动语态不能与表示一段时间的状语连用，如for four days等。若要表达相应的意思，需要改变动词或时态。 3. summary 练习检测 句型转换 1. My friend has bought a new smartphone made in China. →___________________________________________by my friend. 2. Since you have finished your work, you can have a rest now. →Since your work___________________, you can have a rest now. 3. An unknown virus has just attacked my computer. →_________________________________ by an unknown virus. 4. To their joy, they have solved the difficult problem all by themselves. →To their joy, the difficult problem __________________all by them. 5. They have translated the book into more than twenty languages. →_________________________________ into more than twenty languages. 6. We have not found a way to deal with the situation yet. →_________________________________ to deal with the situation yet. 7. The boss has appointed Tom manager of the engineering department to take the place of George. →__________________________________of the engineering department by the boss to take the place of George. 8. The team has developed a kind of intelligent robot. →_____________________________________________ by the team. 布置作业 完成课本34面assessing your progress部分练习 学科网（北京）股份有限公司 学科网（北京）股份有限公司 $$