阅读以下关于“海陆的变迁”一课的教材分析和学情分析,回答问题。
教材分析:
“海陆的变迁”一节是七年级《地理》上册第=章“陆地和海洋”的重要组成部分.主要讲述了地球表面海陆分布的原因,是承接第一节“大洲和大洋”对地球海陆面貌认识的进一步深化,让学生认识到地球表面是处在不断的运动变化过程中的,对学生逐步树立海陆变迁的辩证唯物主义观点,未来的学习与发展具有重要意义,
学情分析.
学生刚刚学习了第一章“地球和地图”,第二章第一节“大洲和大洋”,知道了地球表面海陆分布大势,为本节课的学习提供了必备的知识基础。但初一学生根据其年龄、心理特点和已有知识水平,要顺利完成本节课的学习目标仍需采用直观演示的方法降低难度。
写出“海陆的变迁”一课的教学设计,包括设计理念、教学目标、教法分析和具体教学过程。
阅读下面的材料,根据要求作文。
兔子是短跑冠军,但是不会游泳;松鼠是爬树冠军,但是也不会游泳;鸭子教练逼着兔子和松鼠学游泳,结果费了九牛二虎之力,成效却不大。鸭子教练还不明原因地嚷嚷:“成功来自99%的汗水,加油!加油!”
根据上述材料给你的启示,联系实际,写一篇议论文。
要求:用规范的现代汉语写作。自定立意,自拟题目,自选文体,不少于800字。
阅读下列文字,回答相关问题。
有两位教师在讲解铁的重要化合物的相关内容时,分别采用演示实验和探究实验创设两种不同的教学情境。
教师1:依据实验特点,亲自演示实验,边演示边提醒学生观察,然后带领全班同学讨论实验现象及其原因,最后教师对知识进行总结梳理。
教师2:让学生提前进行预习,并根据教学目标,教学重、难点和学生的实际水平,将学生分成若干小组,每组自行设计实施实验,教师巡回指导,组内讨论得出结论,每组派代表汇报。最后教师对知识进行总结梳理。
问题:
(1)请分析和评价上述两位教师的教学特点。(6分)
(2)简述中学化学演示实验设计应遵循的原则。(7分)
患儿,男,8个月 。腹泻、发热伴呕吐2天,加重1天伴尿少 。于当年10月就诊 。
2天前开始腹泻,每日10余次,为蛋花状水样便,量多,无脓血,无腥臭味 。有发热,轻咳,时有呕吐,为奶汁 。1天来呕吐加重,达5~6次 。精神差,尿量明显减少,近6小时无尿 。
查体:T38℃、P126次/分,呈嗜睡状,皮肤干燥,弹性差,眼窝、前囟深凹,手脚凉 。唇干、色红,咽充血明显 。呼吸较深长,心率126次/分,心音低钝,律齐,未闻杂音 。肠鸣音10次/分,肝脾未触及 。无脑膜刺激征 。
辅助检查:血常规:WBC6 .0×10
/L,N0 .30,L0 .70 。血钠126mmol/L,血钾3 .6mmol/L 。粪常规:黄色稀便,白细胞0~1个/HP 。
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:某城镇普通高中一年级(第二学期)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:
Good teacher
To be a good teacher,you need some of the gifts of a good actor;you must be able to hold the attention and interest of your audience;you must be a clear speaker,with a good,strong,pleasing voice which is fully under your control;and you must be able to act what you are teaching,in order to make its meaning clear.
Watch a good teacher,and you will see that he does not sit still before his class: he stands the whole time he is teaching;he walks about,using his arms,hands and fingers to help him in his explanations,and his face to express feelings. Listen to him,and you will hear the loudness,the quality(音色)and the musical note of his voice always changing according to what he is talking about.
The fact that a good teacher has some of the gifts of a good actor doesn't mean that he will indeed be able to act well on the stage,for there are very important differences between the teacher's work and the actor's.The actor has to speak words which he has learnt by heart;he has to repeat exactly the same words each time he plays a certain part,even his movements and the ways in which he uses his voice are usually fixed beforehand(预先).What he has to do is to make all these carefully learnt words and actions seem natural on the stage.
A good teacher works in quite a different way. His audience takes an active part in his play: they ask and answer questions, they obey orders, and if they don't understand something, they say s0. The teacher therefore has to meet the needs of his audience, which is his class. He cannot learn his part by heart, but must invent it as he goes along.
I have known many teachers who were fine actors in class but were unable to take part in a stage-play because they could not keep strictly to what another had written.