治疗头痛如何选择引经药?
设计任务:请阅读下面学生信息和语言素材,设计20分钟的英语听说教学方案。
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:
The Louvre
From the earliest times, man has been interested in art. People have often worked together to collect and save the world's art treasure. Fine art treasures from many countries are kept in an art museum called the Louvre in Paris, France. The works of art have been collected by the people of France over many centuries.
The Louvre has not always been a museum. The ftrst building was a fort. In 1190, it was the kings' castle with high walls and a round tower. It had a moat to keep out his enemies. Over the years, the number of buildings around the castle grew. By 1350, the castle was no longer needed as a fort. The Louvre became a palace home for French kings and queens.
When Francis I became king of France in 1515,he brought in artists from many countries. One of the artists was Leonardo da Vinci from Italy. Da Vinci's "Mona Lisa" is the best known painting in the museum today. In 1973, the Louvre became a public museum, just as it is now. It is a place where art treasures have been saved for everyone to enjoy.
材料
阅读下面材料并回答问题。
材料:
下面是某教师为“中华人民共和国的成立”一课设计的学生自主学习环节。
(1)个体学习:阅读课文学案中的材料,完成学案的基础知识题。
(2)小组交流:围绕中华人民共和国成立的相关知识分组进行交流。
(3)合作探究:结合学案中的材料,如人民英雄纪念碑的碑文、《共同纲领》的内容、图片《开国大典》、国旗、国歌等,以“中国人民从此站起来了”为主题,进行活动、发表感想。
(4)总结提升。
问题:
(1)你认为这位教师设计有哪些可取之处?(8分)
(2)历史教学中开展学生自主学习应遵循哪些原则?(8分)
背景资料
某新建办公楼工程,地下二层,地上二十层,框架剪力墙结构,建筑高度87m。
建设单位通过公开招标选定了施工总承包单位并签订了工程施工合同,基坑深7.6m,基础底板施工计划网络图(见图2):

基坑施工前,基坑支护专业施工单位编制了基坑支护专项方案,屨行相关审批签字手续后,组织包括总承包单位技术负责人在内的5名专家对该专项方案进行专家论证,总监理工程师提出专家论证组织不妥,要求整改。
项目部在施工至第33天时,对施工进度进行了检查,实际施工进度如网络图中实际进度前锋线所示,对进度有延误的工作采取了改进措施。
项目部对装饰装修工程门窗子分部进行过程验收中,检查了塑料门窗安装等各分项工程并验收合格;检查了外窗气密性能等有关安全和功能检测项目合格报告,观感质量符合要求。
问题:
1.指出基坑支护专项方案论证的不妥之处,应参加专家论证会的单位还有哪些?
2.指出网络图中各施工工作的流水节拍,如采用成倍节拍流水施工,计算各施工工作专业队数量。
3.进度计划监测检查方法还有哪些?写出第33天的实际进度检查结果。
4.门窗子分部工程中还包括哪些分项工程?门窗工程有关安全和功能检测的项目还有哪些?