Unit3 The World of Science Period3 Using language教案-2021-2022学年高中英语外研版（2019）必修第三册

Book3 Unit3 The World of Science Period3 Using language Topic Present perfect passive Teacher Teaching Aims: Let the students know more about the structure and usage of the present perfect passive. Teaching important Points: Help students to grasp the key points to use the present perfect passive. Teaching difficult points: Let the students know how to use the present perfect passive skillfully. Teaching methods: Introduction method Teaching type: Grammar 课 时 one Teaching procedure: Teaching contents: Step 1. Step 2. Step3. Summary Homework Review present perfect. 现在完成时除可以和for,since引导的状语连用外，还可以和下面的介词短语连用:during/in/over the last(past) few years(months, weeks...), in recent years, so far, up to now等。 We used to see each other regularly,but I haven’t heard from him since last year. 我们过去经常见面，但是自从去年以来我就没有收到他的来信了。 2.下列句型中常用现在完成时 (1)It has been+一段时间+since从句; (2)This(That/It) is the first (second...) time that...+现在完成时; (3)This(That/It) is the best/finest/most intere