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人教部编版语文九年级下册溜索教案

  • 第九周国旗下讲话稿:坚持梦想

    第九周国旗下讲话稿:坚持梦想

    尊敬的各位老师、亲爱的同学们:大家早上好!今天我演讲的题目是“坚持梦想”大家都知道古希腊著名哲学家苏格拉底,曾对同学们说,我们来做甩手游戏,就是把手使劲往前甩三百下,再往后甩三百下,但要求每天都做,同学们纷纷说游戏容易,保证能做好,一星期后,苏格拉底问同学们完成得怎么样?同学们全都举起了手,一个月后,当苏格拉底再统计时,全班还有90%的同学,一年后,当苏格拉底再向大家了解时,只有一位同学举起手,他就是后来成为大哲学家的柏拉图。这个甩手游戏从动作上看很简单,但每天坚持,却不是一件容易的事,它需要持之以恒,它需要有始有终,绝不能半途而废,学习也是认准自己的努力目标,坚持不懈地努力不断地鼓励自己这样我们就会体验到成功的喜悦和收获的快乐。

  • 第九周国旗下讲话稿:辛勤的赞歌

    第九周国旗下讲话稿:辛勤的赞歌

    老师、同学们:大家早上好:长亭外,古道边,芳草碧连天,是一种人生。凭栏处,潇潇雨歇,也是一种人生。到中流击水,浪遏飞舟又是一种人生。有一种美,令人惊艳,令人回味,令人追求,这是一种可以吸引目光的美,它——光彩夺目,有一种美,飘逸在浮云上,深埋在故垒下,这是一种可以吸引灵魂的美,它——深藏不露,有一种美,给生命带来激情,给生命带来温馨,这种美就是辛勤之美。而宿舍值班员,您的人生是默默无闻,是无私奉献,您的辛勤劳动犹如咖啡里的方糖,淳香浓郁,把我们中学生活调剂得有滋有味,您的辛勤劳动犹如路旁的一道风景,把我们的人生装饰的亮丽多彩。不知道多少次,同学们半夜赶回宿舍,宿舍门已锁,是值班员毫无怨言地给我们开门。不知道多少次,宿舍外垃圾成山,是值班员拿着工具给我们清理。不知道多少次,放假时,值班员送我们的离去,虽然没有说一句话,但那眼神我们每一个人都懂。

  • 建团百年心得体会范文模版

    建团百年心得体会范文模版

    青年应该勇于放飞梦想,追逐梦想。周总理的“为中华之崛起而读书”和马丁·路德·金的“我有一个梦想”等启示我们:年轻人绝不能缺少梦想。梦想是什么?就是有目标。我一直相信,目标比努力更重要。有个故事是这么说的:有个人好不容易揽到了一个工程,他便加班加点、认认真真的施工。完工后,不但没赚到钱,还挨了一顿揍。什么原因?人家让他挖一口井,他把图纸看倒了,盖了个烟囱。“磨刀不误砍柴工。”没有明确目标、找不准方向,就急于出发、急于求成,最终的结果很有可能就是南辕北辙,无功而返。我们伟大的中国梦也是有具体目标的,作为青年一代的我们,是实现目标的生力军,所以我们应该追梦,但更要正确的追梦。

  • 2022年海南省中考英语真题(解析版)

    2022年海南省中考英语真题(解析版)

    In the late autumn, John was badly ill andbecame bedridden (长期卧床的).After the doctor visited John several times, he told Sue, “His condition isquite ___22___.John seems to have lost all will to live. If he doesn’t want to live, medicineswill not help him.”

  • 2022年海南省中考英语真题(原卷版)

    2022年海南省中考英语真题(原卷版)

    YangHongwei, 56, was born into a kite-making family in Weifang. When she was young,she often saw kites with bright colors and different shapes in hergrandfather’s workshop.

  • 2022年河南省中考英语真题(原卷版)

    2022年河南省中考英语真题(原卷版)

    In the large yard stood thirteen trees ofdifferent sizes. One day, while Joey was playing with his sister under thetrees, he noticed that a tree trunk (树干) had a sad look. He raninto the house to tell his mom about it. She told Joey to find the reason whyit was sad.

  • 2022年河北省中考英语真题(原卷版)

    2022年河北省中考英语真题(原卷版)

    As a boy, Kevin visited national parks and helearned the Earth is in ___12___ condition. He felt worried, and hewanted to ___13___ the Earth. In 2009, he went to swim in water nearNorth Pole(北极)todraw people’s attention to the melting glaciers(融化的冰川).

  • 2022年江西省中考英语真题(原卷版)

    2022年江西省中考英语真题(原卷版)

    Long ago, a poor old couple lived on the coast.One day, an old storyteller came to their village. The old couple gave him ameal. In return, he gave them a coffee mill (磨粉机)and said, “Say, ‘Mill, please grind (磨粉)’,”

  • 2022年河南省中考英语真题(解析版)

    2022年河南省中考英语真题(解析版)

    In the large yard stood thirteen trees ofdifferent sizes. One day, while Joey was playing with his sister under thetrees, he noticed that a tree trunk (树干) had a sad look. He raninto the house to tell his mom about it. She told Joey to find the reason whyit was sad.

  • 2022年河北省中考英语真题(解析版)

    2022年河北省中考英语真题(解析版)

    As a boy, Kevin visited national parks and helearned the Earth is in ___12___condition. He felt worried, and he wanted to ___13___ the Earth. In 2009, he went to swim in waternear North Pole(北极)todraw people’s attention to the melting glaciers(融化的冰川).

  • 2022年江西省中考英语真题(解析版)

    2022年江西省中考英语真题(解析版)

    The app — called Sit With Us — is ___15___. If a student is having lunch in the afternoon,he or she can create an invitation. Other students can open the app and ___16___ that invitation. They can then use the app todecide when and where to ___17___.

  • 2022年福建省中考英语真题(原卷版)

    2022年福建省中考英语真题(原卷版)

    Thinking that her dream could never come true,Kelly was in low spirits and ____18____ her studies at school. Hermother did all she could to cheer her up, ____19____ Kelly refused tochange. She even took out all her anger and ____20____ on her mother.

  • 2022年福建省中考英语真题(解析版)

    2022年福建省中考英语真题(解析版)

    At the age of nine, Kelly dreamed of being abasketball player. But one day when she was playing basketball, she hurt herleft leg ____16____.

  • 2022年安徽省中考英语真题(解析版)

    2022年安徽省中考英语真题(解析版)

    Antarctica lies in the most southern part of theworld. It is the coldest area on Earth. There isn’t much rain, but there is alot of snow and wind. The lowest temperature was on 21 July in 1983 at -89.2℃!

  • 2022年安徽省中考英语真题(原卷版)

    2022年安徽省中考英语真题(原卷版)

    During 1907-1909, British explorer EarnestShackleton explored Antarctica on foot. In 1911, two explorers—a British mannamed Scott and a Norwegian named Amundsen—raced 1, 400 kilometres to the SouthPole (南极).Amundsen arrived first.

  • 2022年吉林省中考英语真题(原卷版)

    2022年吉林省中考英语真题(原卷版)

    Taiping nijiaojiao is made of the mudfrom the local mountain. It takes more than ten steps to make the clay toy, andthe key step is to knead (捏) it with your hands. You can knead the clay toyinto anything, like animals and plants. The blowhole is the most difficult partto make, for the size of the blowhole makes a difference to the sound. Whilecoloring, you can use traditional cultural elements (元素) thatcarry good meanings. It’s hard to make taipingnijiaojiao. But when you finally make it, you will feel proud of yourself.

  • 2022年吉林省中考英语真题(解析版)

    2022年吉林省中考英语真题(解析版)

    “Red Trip” in TonghuaTonghua is a good choice to have a “red trip”. It is aplace full of “red stories”. The well-known national hero Yang Jingyu oncefought here. Experience the “red spirit”!

  • 2022年北京市中考英语真题(解析版)

    2022年北京市中考英语真题(解析版)

    I joineda band (乐队)as a drummer in my middle school. I thought itwould be fun playing the drum and meeting new friends. At first it was easy,but a month later, it got difficult. I was the only one who couldn’t keep pace (节奏)with the other players. Our teacher,Angie, singled me out to keep practicing while everyone else got to relax. Ifelt ashamed (羞愧的)as my teammates watched me fail so many times.Finally I got so tired of practicing that I didn’t care about doing it right.

  • 2022年北京市中考英语真题(原卷版)

    2022年北京市中考英语真题(原卷版)

    When itcomes to a meaningful life, we might think of love, happiness and health. Alife filled with meaning is what most of us want for ourselves. Then, whatmakes a meaningful life?Manyresearchers agree that a meaningful life comes down to three factors (因素): havinglong-term goals, believing that one’s life matters, and feeling that one’s lifefits together and “makes sense”.But we believe there is more to consider. Sometimeslife enables us to experience small moments of beauty. When people are open toappreciating (欣赏) suchexperiences, these moments may improve how they see their own life. We callthis experiential appreciation (EA).

  • 【高教版】中职数学拓展模块:1.3《正弦定理与余弦定理》教案设计

    【高教版】中职数学拓展模块:1.3《正弦定理与余弦定理》教案设计

    教 学 过 程教师 行为学生 行为教学 意图 *揭示课题 1.3正弦定理与余弦定理. *创设情境 兴趣导入 在实际问题中,经常需要计算高度、长度、距离和角的大小,这类问题中有许多与三角形有关,可以归结为解三角形问题. 介绍 播放 课件 质疑 了解 观看 课件 思考 学生自然的走向知识点*巩固知识 典型例题 例6 一艘船以每小时36海里的速度向正北方向航行(如图1-9).在A处观察到灯塔C在船的北偏东方向,小时后船行驶到B处,此时灯塔C在船的北偏东方向,求B处和灯塔C的距离(精确到0.1海里). 图1-9 A 解因为∠NBC=,A=,所以.由题意知 (海里). 由正弦定理得 (海里). 答:B处离灯塔约为海里. 例7 修筑道路需挖掘隧道,在山的两侧是隧道口A和(图1-10),在平地上选择适合测量的点C,如果,m,m,试计算隧道AB的长度(精确到m). 图1-10 解 在ABC中,由余弦定理知 =. 所以 m. 答:隧道AB的长度约为409m. 例8 三个力作用于一点O(如图1-11)并且处于平衡状态,已知的大小分别为100N,120N,的夹角是60°,求F的大小(精确到1N)和方向. 图1-11 解 由向量加法的平行四边形法则知,向量表示F1,F2的合力F合,由力的平衡原理知,F应在的反向延长线上,且大小与F合相等. 在△OAC中,∠OAC=180°60°=120°,OA=100, AC=OB=120,由余弦定理得 OC= = ≈191(N). 在△AOC中,由正弦定理,得 sin∠AOC=≈0.5441, 所以∠AOC≈33°,F与F1间的夹角是180°–33°=147°. 答:F约为191N,F与F合的方向相反,且与F1的夹角约为147°. 引领 讲解 说明 引领 观察 思考 主动 求解 观察 通过 例题 进一 步领 会 注意 观察 学生 是否 理解 知识 点

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