市场经济体制下,该如何进行高等学校的专业设置和专业调整?
材料:
黄老师在讲授“鸦片战争”一课时,选取国产影片《鸦片战争》中的一段场景作为开场白,具体内容如下:
师:最近有一部影片在社会上引起热议,其中有这么一个场景:1839年中国南部一个海滩上,在一个泡满滚烫的生石灰水的水池边,聚集了大量民众和士兵。一位面容严肃,威风凛凛的清朝官员一声令下,整箱的鸦片被扔入池中。万众欢腾,钟鼓齐鸣。请同学们猜一猜,这部影片叫什么名字?
经过这样的一番解说,早已了然于胸的学生们脱口而出是《鸦片战争》。黄老师趁机说道:对。然而英国殖民者却恼羞成怒,为了维护万恶的鸦片贸易,一年后,满载大炮和士兵的英国舰队驶达广州外海,鸦片战争因此拉开了序幕,这就是本节课的主题……
问题:
请结合材料内容分析该教师的教学导入是否恰当,并说明原因。(16分)
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:某城镇普通高中三年级学生,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)》六级水平。学生课堂参与积极性一般。
语言素材:
A great Chinese scientist Father of the Chinese space programme Yu Ping(YP)is talking to her friend Steve Smith(SS)about Qian Xuesen and his work as a rocket scientist.
Part1
YP:What do you want to be when you grow up,Steve?
SS:I want to be an astronomer and visit stars.I wish to visit Mars one day.
YP:I think I'd like to work in the space industry,too. I'd like to be a rocket scientist like Qian Xuesen.
SS:What did he have to do to become a rocket scientist?
YP:Well,he first studied at university to be an engineer.Later he went to America to study for his doctor's degree.It was then he began to work on rockets.
SS:So it was lucky for our space programme that he came back to China.
YP:Very much so. There was no work on space rockets in China before his institute to design and build rockets to go into space.
Part2
SS:Do you think he wanted to travel into space in one of his rockets?
YP:I have no idea but I believe he looked forward to the first space flight by a Chinese astronaut.
SS: Yes. Now that China has sent satelites into space,I hope we' ll be the first to land on Mars.
That would really be something special and if I were that astronaut I would put Qian Xuesen's picture on Mars to show how much we admire his work.
YP: Indeed. He is rightfully called the father of the Chinese space programme. He is my hero and this is why I want to be a rocket scientist.
SS: Well, we'd better get on with our homework. We need good grades to get into university.
YP: Right you are. See you, then.
SS: See you.
案例:
[接第19题案例情境]
姜老师以“枚举法找回密码”讲授了枚举法解决问题后,给同学们布置了一个课后作业:芳芳的手机上有一个学习APP,登录密码是一个5位数。过了一个假期,芳芳再次使用时,却忘记了这个密码。不过芳芳很喜欢数字81和91,常常将81和91的倍数用作密码,芳芳还记得这个密码的中间一位(百位数)是1。你能设计一个程序帮她找回这个密码吗?请有能力的同学尝试使用多种方法,编程解决问题。
第二周上课前,姜老师批阅学生作业时,看到有些同学给出了两种程序。第一个程序是把这5位数字依次从0到9去试一遍,然后再筛选出合格的结果。第二个程序是先计算求出81和91的最小公倍数,然后再去尝试,筛选出合格的那个条件。姜老师心想:“明天枚举法第二课时'枚举法的方案选择'有素材了”。
问题:
(1)请分析姜老师设计的课后作业对学生的学习有哪些帮助。(10分)
(2)对比学生提交的两个程序,请分析姜老师为什么将两个程序作为“枚举法的方案选择”的教学素材。(10分)
金属铸造全冠修复,现脱落 。
临床冠短,咬合紧,
牙体预备聚合度较大,约15°角,金属全冠咬合面较薄 。
叩诊(-),戴入牙冠后接触点尚佳 。X线片显示
已行根管治疗,但根充不到位,欠填约4mm,牙周膜增宽 。全口牙龈龈缘及龈乳头暗红,水肿,龈乳头圆钝,点彩消失,质软 。牙石(++),色素(++),探诊出血,无牙周袋,牙齿无松动 。