阅读某初中水平四的快速跑教学设计片段，回答问题。教学目标：（1）在途中跑时不低头、不耸肩，眼平视，蹬地有力。（2）发展速度素质，进一步提高身体协调能力。（3）形成克服困难的坚强意志品质和合作精神。教学重点：不同形式起跑。教学难点：较强的反应能力与跑的速度。教学过程：（1）调动情绪阶段：课堂常规，教师领做一套徒手操。（2）师生互动阶段：跑姿练习。（3）掌握技能阶段：快速起动与加速跑练习。不同姿势听不同信号起跑。（4）创新思维，陶冶情操阶段：抢绳游戏。快速跑移物换物接力游戏。（5）稳定情绪，恢复身心阶段：配乐（小白船）韵律操。（6）评价阶段：教师指导学生自我评价。教师评价小结，肯定本课学生的表现并给予鼓励。问题：（1）谈谈本案例的设计理念。（2）请对本案例的成功之处进行评析。

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• 幼儿体育的内容包括（）

  A、参加体育活动的兴趣

  B、走、跑、跳、投掷、攀登等动作协调灵活

  C、随音乐节奏做徒手操、模仿操和轻器械操

  D、运动中的安全、守规则、谦让、合作

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• 共用题干第一篇
  Walking to Exercise the Brain
  Do you think sitting and studying all the time will improve your grades?Think again.Getting some exer-
  cise may help,too.
  New research with old people suggests that taking regular walks helps them pay attention better than if
  they didn't exercise.
  Previous research had shown that mice learn,remember,and pay attention better after a few weeks of
  working out on a running wheel.Mice that exercise have greater blood flow to the brain than those who don't.
  Their brain cells also make more connections.
  Neuroscientists（神经科学家）from the University of Illinois at Urbana Champaign wanted to find out if
  the same thing is true for people.First,they measured the physical fitness of 41 adults,ages 58 to 77,after
  each person walked 1 mile.Then,participants looked at arrows on a computer screen and had to use computer
  keys to show which way one particular arrow was pointing.
  Adults who were physically fit were faster at the arrow task,and their answers were just as accurate as
  their less-fit peers,the researchers found.The fitter participants also had more blood flow to a part of their
  brain responsible for paying attention and making decisions.
  In a second study , 15 elderly people who completed a 6-month aerobic-training（有氧运动）course were
  faster at attention tasks compared with 14 seniors who just did stretching and toning exercises（韵律操）for
  the same amount of time.
  So,even going for a walk every 2 or 3 days for just 10 to 45 minutes can help.That should be good news
  for the elderly.
  The effects of exercising on the brains of younger people haven't been studied yet. Still,it can't hurt to
  take occasional breaks and go for a walk or run around with friends.Whatever you do,though,don't try to
  read and walk at the same time.You could end up hurting yourself! After taking exercise for a few weeks,the mice were found to have______________ A:higher blood pressureB:faster heartbeatC:more blood flow to the brain D:better appearance

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• 初中体育《体操分腿腾跃，展示太极拳》一、考题回顾二、考题解析【教学过程】(一)开始部分1.课堂常规：体委整队，报告人数，师生问好，教师简要介绍教学内容，检查服装，安排见习生。导入：在体操跳马比赛中哪个技术动作难度比较大，并且是用中国人的名字命名的?对就是程菲跳，跳马属于支撑跳跃项目，今天我们就来学习一下支撑跳跃的一个基础动作，纵向分腿腾跃。(二)准备部分1.复习24式太极拳技术动作(前十式)起势;野马分鬃;白鹤亮翅;搂膝拗步;手挥琵琶;倒卷肱;左揽雀尾;右揽雀尾;单鞭;云手。2.徒手操热身组织教学：四列横队，体操队形。要求：动作到位，节奏感强。(三)基本部分1.教师示范注意观察教师踏跳过程中踏板的哪个位置，有几次发力动作。组织教学：学生列队站在纵箱两侧。2.讲解：快速助跑，积极有力踏跳，领臂含胸，稍屈髋向前上方腾起，两臂主动前伸远撑箱，提臀、分腿，迅速顶肩推手、制动腿，抬上体。空中挺身、并腿，屈膝落地。3.练习(1)集体俯撑蹬地后摆腿推手成分腿屈体立撑练习。(2)山羊分腿腾越练习：①逐渐加大踏板与山羊之间的距离。②适当提高山羊高度练习，提高后摆和加大腾起高度。(3)在器械远端画出标志线，要求学生手撑远端白线。要求：①善于观察，善于发现问题，并及时解决问题和纠错。②善于调动学生练习的积极性和竞争的意识。4.比赛：分腿腾越接力比赛比赛规则：学生分成四组，进行采用分腿腾越接力方式进行下杠，比哪一组完成的动作准确，完成速度快。(四)结束部分1.放松活动—配乐拉伸组织教学：四列横队体操队形要求：伴随音乐进行拉伸放松活动，身心充分放松。2.课堂小结：教师总结学练情况，表扬先进，激励全体学生。3.宣布下课、师生再见、回收器材。【答辩题目解析】1.体操保护与帮助的意义?2.本节课如何突破重难点?

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