初中化学课上老师讲解《燃烧和灭火》孙老师抛出问题，碳+氧气燃烧成二氧化碳，硫+氧气燃成二氧化硫，铁+氧气燃烧成四氧化铁，问他们的共同点是什么？学生讨论发言，师生共同总结概念，燃烧是指氧气和可燃物进行发光发热产生剧烈的氧化反应。
孙老师拿出准备好的烧杯里边有高温热水，分别放入三个装有红磷、石头和白磷的试管进行实验，从而知道燃烧有三个条件，第一个要有氧气，第二个要有可燃物，第三个达到温度的最低温度，三者缺一不可。
讲完燃烧之后，紧接着讲灭火，孙老师播放幻灯片展示案例，并提问学生，如何通过燃烧条件得知灭火。从而得出灭火有三个条件，第一个要隔离隔绝氧气，第二个要隔绝可燃物，第三个要降低最低温度，孙老师边问边讲，最后拿出工具、沙子、水、毛巾，找出几个同学跟同学一一示范，让学生自己讲解灭火的原理。
最后孙老师进行举一反三联系生活实际提问，比如炒菜时，油锅中的油不慎着火怎么办？电线老化短路，引发火灾怎么办？堆放的纸箱着火常用何种灭火方法扑灭？森林火灾的有效方法是什么？学生一问一答？课堂气氛十分活跃。
请结合材料讲一讲孙老师运用了哪些教学方法，请进行具体分析。
【分析题】
针对事件1，施工单位拒绝更换专职安全管理人员的情况，监理工程师应如何处理，并说明理由。
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【分析题】
【分析题】
根据提供的信息和语言素材设计教学方案，用英文作答。
设计任务：请阅读下面学生信息和语言素材，设计20分钟的英语阅读教学方案。
教案没有固定格式，但须包含下列要点：
●teaching objectives
●teaching contents
●key and difficult points
●major steps and time allocation
●activities and justifications
教学时间：20分钟
学生概况：某城镇普通高中二年级（第一学期），班级人数40人，多数学生已经达到《普通高中英语课程标准（实验）》七级水平。学生课堂参与积极性一般。
语言素材：
Business
Motorola set out a special training plan programme for children last week with the aim of developing children's business skills and preparing them for a future as entrepreneurs.
Eighty-seven children aged between 12 and 16 from Beijing and Tianjin attended the one-week training programme called Youth Discovery directed by Motorola University's (MU) instructors and marketing specialists. The children learned about dealing with a practical problem-marketing and worked out a marketing plan by themselves. Last week 26 children of Motorola employees in Tianjin completed their training in the MU-Tianjin Learning Center.
Through the training programme, children learnt how to get information through different kinds of sources, determine end-user needs, make up messages of value to customers, and communicate using various means and equipment.
Educators acted only as team directors, providing children to discover their own answers. The children gave their solutions to Motorola's management and their parents on the last day of the programme.
The children, most of whom were primary and middle school students, presented themselves freely. The students said that they preferred the open and practical way oflearning.
Youth Discovery, started by Motorola's former president Robert Galvin, designed and carried out by Motorola University, aimed to bring the talents of young people into full play and encouraged them to discover how their skills can contribute to a team to help it reach an aim.
