提供各类精美PPT模板下载
当前位置:首页 > Word文档 >

北京冬奥会志愿者心得体会参考范文

  • 2022年湖北省鄂州市中考英语真题(解析版)

    2022年湖北省鄂州市中考英语真题(解析版)

    Dealing with a nosebleed(鼻出血)mightseem simple. But recently, the British RED Cross asked parents with youngchildren how to help a child with a nosebleed. About 65 percent of parents didnot ____11____the correct action to help.

  • 2022年湖北省荆州市中考英语真题(原卷版)

    2022年湖北省荆州市中考英语真题(原卷版)

    My earliest memory ofthese events began when I was around four years old. I was filled with ___12___ at that time. There were lots of ___13___ — crying, shouting, and doors slamming (砰地关上).

  • 2022年湖北省武汉市中考英语真题(解析版)

    2022年湖北省武汉市中考英语真题(解析版)

    The December day started like any other. Papacame back with his boat full of fish. Mama made breakfast for the family.Seven-year-old Joonas was doing his homework, while his two little brothers ranaround the yard. That day seemed peaceful, but Alejo ____16____ better.

  • 2022年湖北省恩施州中考英语真题(解析版)

    2022年湖北省恩施州中考英语真题(解析版)

    Once, herfather took her to the kitchen. He asked Jane to take a potato, an egg ____11____ two spoons of tea leaves. Jane was ____12____, andasked her father, “Do you want me to cook?”

  • 2022年湖北省宜昌市中考英语试题(解析版)

    2022年湖北省宜昌市中考英语试题(解析版)

    Duringwork hours in Becker’s bread shop, the kitchen is especially quiet except thesound of the machine. The quiet environment is not the result of the strictrules, but because all the workers are deaf. They use sign language tocommunicate with each other from time to time.

  • 2022年湖北省宜昌市中考英语试题(原卷版)

    2022年湖北省宜昌市中考英语试题(原卷版)

    Why do you need hobbies? A study has found thatpeople are more positive (积极的) when they take part in a relaxing activity. ___36___Scientists also think they might be good for your brain.

  • 2022年湖北省十堰市中考英语真题(解析版)

    2022年湖北省十堰市中考英语真题(解析版)

    My arms were shaking and my heart was beating ____19____ when I stood at thestarting line. ____20____the endless runway (跑道), I felt like a boat fighting against the windand rain. I ____21____myself that simply joining in was a victory (胜利) itself.

  • 2022年湖北省十堰市中考英语真题(原卷版)

    2022年湖北省十堰市中考英语真题(原卷版)

    My arms were shaking and my heart was beating ____19____when I stood at the starting line. ____20____ the endless runway (跑道), I felt like a boatfighting against the wind and rain.

  • 2022年湖北省武汉市中考英语真题(原卷版)

    2022年湖北省武汉市中考英语真题(原卷版)

    The December day started like any other. Papacame back with his boat full of fish. Mama made breakfast for the family.Seven-year-old Joonas was doing his homework, while his two little brothers ranaround the yard.

  • 2022年湖北省恩施州中考英语真题(原卷版)

    2022年湖北省恩施州中考英语真题(原卷版)

    Once, herfather took her to the kitchen. He asked Jane to take a potato, an egg ____11____two spoons of tea leaves. Jane was ____12____, and asked her father, “Doyou want me to cook?”

  • 2022年广西北部湾经济区中考英语真题(解析版)

    2022年广西北部湾经济区中考英语真题(解析版)

    Ibelieved that I was right and he was wrong, and Tony believed that I was wrongand he was right. Our teacher, a kind and smart lady, decided to teach us alesson. She brought us to the front of the class and placed him on one side ofher desk and me on the other. In the middle of her desk was a large and roundobject. I could clearly see that it was black. The teacher asked us what colorthe object was. “White,” Tony answered. I couldn’t believe he said the objectwas white! “Clearly, it was black!” Another argument started between Tony andme, this time about the color of the object.

  • 2022年广西北部湾经济区中考英语真题(解析版)

    2022年广西北部湾经济区中考英语真题(解析版)

    Ibelieved that I was right and he was wrong, and Tony believed that I was wrongand he was right. Our teacher, a kind and smart lady, decided to teach us alesson. She brought us to the front of the class and placed him on one side ofher desk and me on the other. In the middle of her desk was a large and roundobject. I could clearly see that it was black. The teacher asked us what colorthe object was. “White,” Tony answered. I couldn’t believe he said the objectwas white! “Clearly, it was black!” Another argument started between Tony andme, this time about the color of the object.

  • 2022年广西北部湾经济区中考英语真题(原卷版)

    2022年广西北部湾经济区中考英语真题(原卷版)

    Ibelieved that I was right and he was wrong, and Tony believed that I was wrongand he was right. Our teacher, a kind and smart lady, decided to teach us alesson. She brought us to the front of the class and placed him on one side ofher desk and me on the other. In the middle of her desk was a large and roundobject. I could clearly see that it was black. The teacher asked us what colorthe object was. “White,” Tony answered. I couldn’t believe he said the object waswhite! “Clearly, it was black!” Another argument started between Tony and me,this time about the color of the object.

  • 2022年广西北部湾经济区中考英语真题(原卷版)

    2022年广西北部湾经济区中考英语真题(原卷版)

    By usingthis method, the study found that red meats were the most unfriendly foods tothe environment. Keeping farm animals produces a large number of methane(甲烷)that keeps 30 times more heat than CO2. As well asmaking the earth warmer, eating too much red meat is known to increase the riskof a few illnesses, such as heart trouble.

  • 北师大版小学数学四年级下册《街心广场》说课稿

    北师大版小学数学四年级下册《街心广场》说课稿

    一、说教材本节课教学是探索积的小数位数与乘法的小数位数的关系,教材在编排上体现了以下特点:1、“街心广场”教材创设了计算街心广场面积,花坛面积和每块地砖的面积等情景,在活动中引导学生观察三个长方形长、宽、面积之间的关系,使学生初步感知到小数乘法可以先按整数乘法计算,再来确定积的小数点的位置。2、教材还通过情境图引导学生从不同角度来探索地板砖面积,女少可以从前两个整数乘法算式的得数,推想出小数乘法得数;可以通过单位名称的转换推出得数。3、教材通过尝试练习:试一试和填一填的活动,使学生归纳出两个乘数一共有几位小数,积就有几位小数的规律,这些都能激起学生独立探索的热情和创新意识。教学目标:1、结合三个长方形面积关系,促能学生探索积的小数位数与乘法的小数位数的关系。

  • 北师大版初中数学八年级下册中心对称说课稿2篇

    北师大版初中数学八年级下册中心对称说课稿2篇

    学生在观察和讨论后,由师生合作,归纳出中心对称的性质:(1)关于中心对称的两个图形,对称点所连线段都经过对称中心,而且被对称中心所平分;(2)关于中心对称的两个图形是全等图形.让学生尝试自己证明△ABC与△A′B′C′全等,然后在教师的引导下相互交流。接着,对“轴对称”和“中心对称”的概念进行比较,我采用列表格的方式,从三个方面分别让学生去填,意图让学生把新学的知识及时纳入到已学的知识体系中去。4、灵活运用体会内涵1)首先讲授例1。(1)选择点O为对称中心,画出点A关于点O的对称点A′;(2)选择点O为对称中心,画出线段AB关于点O的对称线段A′B′.(3)已知四边形ABCD和O点,画出四边形ABCD关于O点的对称图形。在老师的引导下,共同完成作图,并规范画图方法:要画一个多边形关于已知点的对称图形,只要画出这个多边形的各个顶点关于已知点的对称点,再顺次连接各点即可。在本次活动中,意图利用中心对称的性质进行作图,加强对中心对称性质的理解。

  • 北师大版初中数学九年级下册圆周角和圆心角的关系说课稿

    北师大版初中数学九年级下册圆周角和圆心角的关系说课稿

    (设计意图:因为圆中有关的点、线、角及其他图形位置关系的复杂,学生往往因对已知条件的分析不够全面,忽视某个条件,某种特殊情况,导致漏解。采用小组讨论交流的方式进行要及时进行小组评价。)(3) 议一议( 如图,OA、OB、OC都是圆O的半径∠AOB=2∠BOC, 求证:∠ACB=2∠BAC。)(设计意图:通过练习,使学生能灵活运用圆周角定理进行几何题的证明,规范步骤,提高利用定理解决问题的能力。)(三)说小结首先,通过学生小组交流,谈一谈你有什么收获。(提示学生从三方面入手:1、学到了知识;2、掌握了哪些数学方法;3、体会到了哪些数学思想。)然后,教师引导小组间评价。使学生对本节内容有一个更系统、深刻的认识,实现从感性认识到理性认识的飞跃。(四)、板书设计为了集中浓缩和概括本课的教学内容,使教学重点醒目、突出、合理有序,以便学生对本课知识点有了完整清晰的印象。我只选择了本节课的两个知识点作为板书。

  • 北师大初中数学九年级上册投影的概念与中心投影1教案

    北师大初中数学九年级上册投影的概念与中心投影1教案

    ∴∠AEP=∠ACB,∠APE=∠ABC,∴△AEP∽△ACB.∴PECB=APAB,即1.89=2AB,解得AB=10(m).∴QB=AB-AP-PQ=10-2-6.5=1.5(m),即小明站在点Q时在路灯AD下影子的长度为1.5m;(2)同理可证△HQB∽△DAB,∴HQDA=QBAB,即1.8AD=1.510,解得AD=12(m).即路灯AD的高度为12m.方法总结:解决本题的关键是构造相似三角形,然后利用相似三角形的性质求出对应线段的长度.三、板书设计投影的概念与中心投影投影的概念:物体在光线的照射下,会    在地面或其他平面上留    下它的影子,这就是投影    现象中心投影概念:点光源的光线形成的 投影变化规律影子是生活中常见的现象,在探索物体与其投影关系的活动中,体会立体图形与平面图形的相互转化关系,发展学生的空间观念.通过在灯光下摆弄小棒、纸片,体会、观察影子大小和形状的变化情况,总结规律,培养学生观察问题、分析问题的能力.

  • 北师大初中数学九年级上册投影的概念与中心投影2教案

    北师大初中数学九年级上册投影的概念与中心投影2教案

    五、回顾总结:总结:1、投影、中心投影 2、如何确定光源(小组交流总结.)六、自我检测:检测:晚上,小华在马路的一侧散步,对面有一路灯,当小华笔直地往前走时,他在这盏路灯下的影子也随之向前移动.小华头顶的影子所经过的路径是怎样的?它与小华所走的路线有何位置关系?七、课后延伸:延伸:课本128页习题5.1八、板书设计投影 做一做:投影线投影面 议一议:中心投影九、课后反思本节课先由皮影戏引出灯光与影子这个话题,接着经历实践、探索的过程,掌握了中心投影的含义,进一步根据灯光光线的特点,由实物与影子来确定路灯的位置,能画出在同一时刻另一物体的影子,还要求大家不仅要自己动手实践,还要和同伴互相交流.同时要用自己的语言加以描述,做到手、嘴、脑互相配合,培养大家的实践操作能力,合作交流能力,语言表达能力.

  • 北师大初中九年级数学下册圆周角和圆心角的关系教案

    北师大初中九年级数学下册圆周角和圆心角的关系教案

    解析:点E是BC︵的中点,根据圆周角定理的推论可得∠BAE=∠CBE,可证得△BDE∽△ABE,然后由相似三角形的对应边成比例得结论.证明:∵点E是BC︵的中点,即BE︵=CE︵,∴∠BAE=∠CBE.∵∠E=∠E(公共角),∴△BDE∽△ABE,∴BE∶AE=DE∶BE,∴BE2=AE·DE.方法总结:圆周角定理的推论是和角有关系的定理,所以在圆中,解决相似三角形的问题常常考虑此定理.三、板书设计圆周角和圆心角的关系1.圆周角的概念2.圆周角定理3.圆周角定理的推论本节课的重点是圆周角与圆心角的关系,难点是应用所学知识灵活解题.在本节课的教学中,学生对圆周角的概念和“同弧所对的圆周角相等”这一性质较容易掌握,理解起来问题也不大,而对圆周角与圆心角的关系理解起来则相对困难,因此在教学过程中要着重引导学生对这一知识的探索与理解.还有些学生在应用知识解决问题的过程中往往会忽略同弧的问题,在教学过程中要对此予以足够的强调,借助多媒体加以突出.

上一页123...636465666768697071727374下一页
提供各类高质量Word文档下载,PPT模板下载,PPT背景图片下载,免费ppt模板下载,ppt特效动画,PPT模板免费下载,专注素材下载!