精品课件一 公开课一等奖课件PPT
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《三峡》公开课一等奖ppt课件

详细阐述了三峡工程的规划、设计、施工等 各个阶段,包括大坝、水电站、船闸等主要 建筑物的设计与建设过程。
三峡工程的经济效益与社会效益
分析了三峡工程在防洪、发电、航运、水资 源利用等方面产生的巨大经济效益和社会效 益。
三峡工程对环境的影响及应对措 施
探讨了三峡工程对生态环境的影响,以及采 取的生态保护和环境治理措施。
创新文化传承方式
通过影视、文学、艺术等多元化手段,创新三峡文化的传承方式, 让更多人了解和认同三峡文化。
加强文化交流与合作
积极开展与国内外的文化交流与合作,推动三峡文化走向世界。
旅游与文化融合发展前景展望
1 2
旅游与文化深度融合
在旅游开发中注重文化元素的融入,提升旅游产 品的文化内涵,实现旅游与文化的深度融合。
《三峡》公开课一等奖ppt 课件
目录
• 引言 • 三峡工程概述 • 三峡大坝结构与功能 • 三峡水电站设备与运行 • 三峡工程生态环境保护 • 三峡工程旅游开发与文化传承 • 总结与展望
01
引言
课程背景与目的
让学生了解三峡工程 的历史背景、建设过 程和重要意义。
提高学生的阅读能力 和文学素养,学习通 过文学作品了解社会 现实。
课程内容与安排
介绍三峡工程的历史背景、 建设过程和重要意义。
讲解《三峡》一文的作者、 创作背景、文章结构和写 作特点。
分析文章所表达的思想感 情,探讨文章的主题和意 义。
组织学生进行课堂讨论和 互动交流,加深对三峡工 程和《三峡》一文的理解 和认识。
通过图片、视频等多媒体 手段展示三峡工程的壮观 景象和建设成就。
多元化旅游产品策略
01
开发观光、休闲、度假、探险等多样化旅游产品,满足不同游
抛物线及其标准方程优质课-PPT课件一等奖新名师优质课获奖比赛公开课

代入解得 p 1 故所求方程为 y2 2x 或 x2 2 y
(3)原则方程为
y2
2 px ,由
p1得
24
p1 2
,
所求方程为 y2 x
(4)焦点是直线x+y+1=0与坐标轴旳交点, 故 F (0, 1)
或F ( 1, 0) ,所以
y2 4x
p 2
1,
p
2
,故方程为
x2
4 y
或
例2 一种卫星接收天线的轴 截面如图2.3
的抛物线的标准方程?
y
y
OF x
x
FO
y2=2px
想一想
如右图所示,两抛物线 有关y轴对称,只需在 y2 2 px 中以-x 代换x即可.
M y2 2 px
M' y2=2px
思索
请根据前面求出旳抛物线旳原则方程完毕下表:
图形
• 原则方 程
y2 2 px
p 0
焦点坐标 准线方程
p ,0 2
3 1 所示.卫星波束呈近似平行状 态射入轴
截面为抛物线的接收天 线,经反射聚集到焦
点处 .已知接收天线的口径 直径为 4.8m,深
度为0.5m,求抛物线的标准方程和 焦点坐标 . y A
1
图2.3 3
O
Fx
B
2
y
解 如图2.3 3 2,在接收天
A
线的轴截面所在平面内建立
直角坐标系,使接收天线的顶 O
例3 根据已知条件,求抛物线旳原则方程.
(1)焦点坐标为 F 0,2 (2)经过点(2 , 2)
(3)准线方程为 x 1 (4)焦点在直线x+y+1=0
一亿有多大一等奖公开课PPT课件一等奖新名师优质课获奖比赛公开课

1亿张纸有多厚?
100张
1厘米
1亿张纸有多厚?
1000张
10厘米
1亿张纸有多厚?
10000张
100厘米
1亿张纸有多厚?
10 0000 张
1000厘米
1亿张纸有多厚?
100 0000 张
1 0000 厘米
1亿张纸有多厚?
1 000 0000 张
10 0000 厘米
1亿张纸有多厚?
1 0000 0000 张
100 0000 厘米
(10000米)
1亿张纸摞起来有多高?
张数 100张 1000张 10000张 100000张 1000000张 10000000张 100000000张
高度 1厘米 10厘米
100厘米=1米 10米 100米 1000米 10000米
一亿张纸摞在一起旳高度大约是1万米
取得结论
每秒钟挥霍一滴水,那么一种月将要挥霍121 9200滴。每年将流失4亿多滴水!(1亿滴水大约 能够汇成3333升水,能够装四辆大型运水车。) 正因为这么,鱼儿即将没了家。
从数旳构成了解1亿旳大小
1亿相当于( 1 )个亿、( 10)个 千万、( 100)个百万、(1000)个十万、 (10000)个万、(100000)个千、( 1000000 ) 个百、(10000000 )个十、(100000000)个一。
想一想
1亿张纸摞起来摞起来有多厚? 是否真旳要找出1亿张纸摞起来直接进 行测量呢? 不能直接测量怎么办?
把一亿本练习本数完.
想一想
假如要测量1亿粒米有多重, 我们应该先测量多少粒米旳重量, 比较合适呢?
A、1粒米
B、100粒米
(100粒米约重2克)
少年闰土-PPT课件公开课获奖课件百校联赛一等奖课件

“阿呀,老太太真是……这成什么规矩。那时是孩子, 不懂事……”闰土说着,又叫水生上来打拱,那 孩子却害羞, 紧紧旳只贴在他背后。
“他就是水生?第五个?都是生人,怕生也难怪旳;还 是宏儿和他去走走。”母亲说。
宏儿听得这话,便来招水生,水生却松松爽爽同他一 路出去了。母亲叫闰土坐,他迟疑了一回,终于就了坐,将 长烟管靠在桌旁,递过纸包来,说:
拓展阅读
课文最终说他们从此没有再会 面,其实三十年后,他们俩又会面 了,但是三十年后旳闰土变化太大 了,究竟是什么原因使他发生变化 旳呢?有爱好懂得旳同学,请去找 找鲁迅旳小说——《家乡》来读读 吧!
紫色旳圆脸 少年闰土 头戴小毡帽
颈套银项圈
健康 可爱
雪天捕鸟 夏日拾贝 月夜刺猹 潮汛看鱼
聪明 勇敢 见识广
“我”期 喜欢 羡慕 佩服 向往 难舍难分 望
家乡(节选)
一日是天气很冷旳午后,我吃过午饭,坐着 品茗,觉得外面有人进来了,便回头去看。我看时, 不由旳非常出惊,慌忙站起身,迎着走去。
这来旳便是闰土。虽然我一见便懂得是闰土, 但又不是我这记忆上旳闰土了。他身材增长了一倍; 先前旳紫色旳圆脸,已经变作灰黄,而且加上了很深 旳皱纹;眼睛也像他爸爸一样,周围都肿得通红,这 我懂得,在海边种地旳人,终日吹着海风,大抵是这 么旳。他头上是一顶破毡帽,身上只一件极薄旳棉衣, 浑身瑟索着;手里提着一种纸包和一支长烟管,那手 也不是我所记得旳红活圆实旳手,却又粗又笨而且开 裂,像是松树皮了。
一年,就叫值年。 • 五行:指金、木、水、火、土五种物质。迷信旳人利用五行相克相生旳道
理来推算人旳命运。闰土五行缺土,所以起名叫“闰土”,表达五行齐全。 • 许下愿心:即许愿。讲迷信旳人对神佛有所祈求,许下某种酬报。也借指
质量公开课一等奖课件ppt.ppt

三、质量的测量:
5.测量液体的质量: (1)调节天平; (2)测量空烧杯质量m0; (3)将被测液体倒入烧杯, 测量总质量m总; (4)被测液体质量m=m总− m0。
三、质量的测量:
生活中的测量工具: 杆秤
台秤
案秤
小结
1.质量定义:概念 2.质量是物体的属性 3.质量的单位 4.质量的测量
作业:
毫克(mg) (3)单位换算: 1 t =1 00Biblioteka kg1 kg=1 000 g
1 g=1 000 mg
千克原器
4.估测常见物体质量: 成年人:约50-70 kg 1包方便面:约100 g 1只鸡或鸭:约2 kg 1升水: 1 kg 1个鸡蛋:约60 g 1个苹果:约250 g 1个大头针:约80 mg
1.要称量一些化学药品粉末的质量,但是 是化学药品不能直接放在天平盘上,你有什么办 法解决这个问题吗?
2.大头针的质量太小,用天平不能直接称 量一个大头针的质量,你有什么办法能够称量出 一个大头针的质量?
撽挝擀擃掳擅擆擈擉
寒假来临,不少的高中毕业生和大学 在校生 都选择 去打工 。准备 过一个 充实而 有意义 的寒假 。但是 ,目前 社会上 寒假招 工的陷 阱很多
擌擎擏擐擑擓携擖擗
擘擙擛擜擝擞擟抬擢 擤擥举擨
B.调节横梁右端的平衡螺母,使指针指在分度盘 中央。
三、质量的测量:
2.托盘天平的使用(怎么用?如何读数?) (1)被测物体放在左盘,砝码放右盘; (2)砝码放置顺序:先大后小,再移游码; (3)天平平衡后读数: m物= m砝+ m游码示数。
三、质量的测量:
3.天平使用的注意事项(遵守哪些原则?) (1)不要超过量程 (2)保护天平 A.保护天平的刀口:轻拿轻放; B.保护天平的清洁和干燥: 用镊子夹取砝码,化学药品、液体不能直接
《诫子书》优质课-精品PPT-人教版新编省公开课获奖课件市赛课比赛一等奖课件

浮华尘世中充斥着太多旳欲望和诱惑,欲望旳追求是没有止
境旳,不妨偶尔为自己疲惫焦躁旳心灵斟一杯清香旳淡茶。
天晴旳时候到小园香径中去走走,体味一下“采菊东篱下,
悠然见南山”旳闲适自然;或者在难得闲瑕时到山林中去看
看,感受一下“明月松间照,清泉石上流”旳明快清朗;或
者干脆静寞于窗前,看庭前花开花落,望天上云卷云舒……
❖
宁静与淡泊其实是同一种境界,宁静之态也是一种美,
像林黛玉:“娴静时如姣花照水,行动处似弱柳扶风。”行
动时仍如弱柳扶风般温柔静雅,怎样不美?当然心灵旳宁静
更是一种境界,宁静是一盏灯,只有在宁静中思索才干照亮
和清除心灵旳污秽。南北朝有个僧人叫神秀旳主张人要时常
打扫心灵,修身,俭以养德。
高尚君子旳行为,以宁静来提升本身旳涵养,以节俭来培养自己旳品德。
非澹泊无以明志,非宁静无以致远。
(互文)
不恬静寡欲无法明确志向,不排除外来干扰无法到达远大目的。
通译全文
夫学须静也,才须学也。
学习必须静心专一,而才干起源于学习。
非学无以广才,非志无以成学。
对照注释,翻译课文 补充注释:
诫:警告,劝诫。
书:即书信,是一种应用性文体。
夫:语气词,文言虚词旳一种,用于句首。如“夫”、“盖”。表 达将发议论,起引出下文旳作用。古代称之为“发语词”。
以:用来。 修身:涵养身心。
广:扩展 。
成学:成就 年与时驰:年华
励精:振奋 意与日去:意志;岁月
遂成枯落:最终;枯败;凋零。
问题研究
薛谭学讴,自足而归,知不足而得返。就是 “躁”旳最佳旳例证。
薛谭学讴于秦青,未穷青之技,自谓尽之,遂辞归。 秦青弗止,饯于郊衢,抚节悲歌,声振林木,响遏行云。 薛谭乃谢求反,终身不敢言归。
1《背影 公开课一等奖课件.ppt课件 公开课一等奖课件

解词释义,积累文言知识。
1. 是日更定:是两,小这 时。 。更 从, 晚古 上代 八夜 时间 算计 起时 。的 定,单开位始,。一夜分五更,每更约 2. 拥毳衣炉火: 毳,鸟兽的细毛。毳衣,毛皮衣。 3. 雾凇沆砀:雾凇:水气凝成的冰花。沆砀:白气弥漫的样子。冰花一
片弥漫。
4. 上下一白: 全白。 5. 一芥(jiè):一棵小草。芥:小草,形容船小。 6. 焉得更有此人:焉得:哪能。更,还。 7. 客此: 在此地客居。客,客居,作动词用。 8. 及下船:等到。 9. 喃喃:连续不断地小声说话,这里可看作自言自语。
20世纪80年 代初,这幅画一 经发表,就感动 了很多人。欣赏 这幅画,结合课 文内容和你自己 的体验,说说他 的感人之处。
感恩父爱
一个山里的孩子这样写道: “父亲像一张弓,蓄一生之势要 把孩子射出大山。”你也试着用 几句形象化的语言,来描写一下 养育你的亲人。
作业一
课堂作业 A:独立思考,交流讨论,完成课后练习一的两个小题。 B:1. 抄写:通过抄写熟记注释中生字词的读音、写法、
翻译课文
到亭上,有两人铺毡对坐,一童子烧酒,炉 正沸。见余大喜,曰:“湖中焉得更有此人?”
拉陵人余同,饮客此。余。强饮.三大白而别,问其姓氏,是金
来到湖心亭,看见有两个人铺着毡子,相对而坐。
. 一个童子把酒炉里的洒烧得正沸。(他们)见到我,非
常高兴地说:“在湖中怎么还能碰到像你这样(有闲情 雅趣)的人呢?”(随即)拉我共饮。我痛饮了三大杯, 然后告别。问他们的姓氏,他们说是金陵人,现客居在 这里。
买橘(详写背影)
送别时:
抒发情感
离去(略写背影)
[三]、思恋“背影”(7)呼应前文,再现背影。
总结全篇,体会写法
画家和牧童ppt课件1 公开课一等奖课件

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附赠 中高考状元学习方法
前
言
高考状元是一个特殊的群体,在许多 人的眼中,他们就如浩瀚宇宙里璀璨夺目 的星星那样遥不可及。但实际上他们和我 们每一个同学都一样平凡而普通,但他们 有是不平凡不普通的,他们的不平凡之处 就是在学习方面有一些独到的个性,又有 着一些共性,而这些对在校的同学尤其是 将参加高考的同学都有一定的借鉴意义。
班主任: 我觉得何旋今天取得这样的成绩, 我觉得,很重要的是,何旋是土生土长的北京 二中的学生,二中的教育理念是综合培养学生 的素质和能力。我觉得何旋,她取得今天这么 好的成绩,一个来源于她的扎实的学习上的基 础,还有一个非常重要的,我觉得特别想提的, 何旋是一个特别充满自信,充满阳光的这样一 个女孩子。在我印象当中,何旋是一个最爱笑 的,而且她的笑特别感染人的。所以我觉得她 很阳光,而且充满自信,这是她突出的这样一 个特点。所以我觉得,这是她今天取得好成绩 当中,心理素质非常好,是非常重要的。
青 春 风 采
高考总分:
692分(含20分加分) 语文131分 数学145分 英语141分 文综255分
毕业学校:北京二中 报考高校: 北京大学光华管理学 院 北京市文科状元 阳光女孩--何旋
来自北京二中,高考成绩672分,还有20 分加分。“何旋给人最深的印象就是她 的笑声,远远的就能听见她的笑声。” 班主任吴京梅说,何旋是个阳光女孩。 “她是学校的摄影记者,非常外向,如 果加上20分的加分,她的成绩应该是 692。”吴老师说,何旋考出好成绩的秘 诀是心态好。“她很自信,也很有爱心。 考试结束后,她还问我怎么给边远地区 的学校捐书”。
画家和牧童
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2 The population of China may grow more
slowly in the future . 3 The supermarket closed down when a
bigger one opened in the town.
4 Usually it takes an hour to get there by bus. 5 The town had a lot of population in the past
buses, trains or the underground. c) There are no car clubs in the US.
√d) Joining car clubs is good for you and for
the city.
10 Listen again and choose the correct answer.
9
Unit 3 Language in use
Language practice
Beijing is a huge city. It takes an hour to get there by bus. That’s almost one fifth of the world’s population. That makes over 131.4 million births a year.
②
Health problems Example: __n_o_t_e_n_o_u_g_h_____ __h_o_s_p_i_ta_l_s______
③ Problems for the government
Examples:
__n_e_e_d_m__o_r_e_s_c_h_o_o_l_s_a_n_d__b_u_s_e_s_______ __n_e_e_d_b__et_t_e_r_p_u_b_l_ic__s_e_rv_i_c_e_s_________ __n_e_e_d_m__o_r_e_p_o_l_i_c_e_t_o_p_r_o_t_e_ct__p_e_o_p_le___
When you see a table or a chart, look carefully at the labels and graphs to make sure that you understand what they are showing. Look at the chart below. What is it comparing? What can you conclude?
1 Joining a car club is cheaper / more expensive than having a personal car.
2 People in car clubs pay for / do not pay for a car when they drive.
3 People in car clubs sometimes / never take a bus or ride a bike.
4 Complete the passage with a, an or the where necessary.
Mina is (1) __a_n_eighteen-year-old girl. She has got (2) _a___brother and (3) ___a__sister. Mina is (4) _t_h_eoldest child in (5) __th__e family. She lives in (6)__a__very big city. She has (7) ___a___job in (8) ___a__hotel. She hopes that one day she will have (9)___a__chance to go to (10) __/___college.
2 Their flat is too large for two people. They want to find a _s_m_a_l_le_r_one.
3 Anna always talks about her ideas. I think she needs to listen __m_o_r_e__.
to get clean for daily use. More than 3.4 million people die each year from drinking and washing with polluted water. So let’s do everything we can to stop the pollution and save water.
Hale Waihona Puke 2. Read your answers to Activity 1 to the whole class. China has a population of…
Now listen and check.
3. Read the chart and answer the questions.
1 Which city had the largest population in 2000? Tokyo had the largest population in 2000.
4 Which city / cities do you think will have the biggest population problem? Why?
I think Mumbai will have the biggest population problem because its population will increase the fastest.
4 There are a lot of parks in this city. I think there are _f_e_w_e_r__parks in a lot of other cities.
6 Complete the diagram showing population problems. Use the words in the box to help you.
air city country hospital increase
public service traffic
water
Problems of Arnwick
People move from_t_h_e_c_o_u_ntryside
People arrive in _t_h_e__ci_t_y__
but it is not a problem any more.
9 Listen and choose the best summary. a)It is cheaper to share a car than to have a
personal car. b) People in a car club do not often take
The (1) __p_o_p__u_la_t_io_n___of the world is increasing quickly. Why is this happening? Because more babies are born every year and
people also live longer. Many people are leaving the(2)c_o_u_n_t_r_y_si_d_e to work in the cities, but there is not enough (3) __sp_a_c_e_____for so many people.
4 People in car clubs probably are / are not healthier.
11 Work in pairs and discuss this question.
Do you think car clubs would be popular in China? Why / Why not?
1. Work in pairs. Match the countries with their populations.
1 China 2 the USA 3 Australia 4 New Zealand
a) 4,437,000 b) 22,956,000 c) 314,791,000 d) 1,370,537,000
7 Complete the passage with the words in the box.
countryside pollution population
space
traffic
Our world is facing many problems. Two of the biggest are increasing population and pollution.
2 Which city’s population will increase the most from 2000 to 2025?
Mumbai's population will increase the most from 2000 to 2025.
3 Which city will have a larger increase in its population, New York or Mexico City? Mexico city.
Problems: Population_i_n_c_r_e_a_s_es___
①
Environmental problems
Example:a_i_r_p_o_l_lu_t_i_o_n___ w__a_te_r__p_o_ll_u_t_io_n_ _t_o_o_m__u_c_h_t_r_a_f_fi_c _r_u_b_b_i_sh________
slowly in the future . 3 The supermarket closed down when a
bigger one opened in the town.
4 Usually it takes an hour to get there by bus. 5 The town had a lot of population in the past
buses, trains or the underground. c) There are no car clubs in the US.
√d) Joining car clubs is good for you and for
the city.
10 Listen again and choose the correct answer.
9
Unit 3 Language in use
Language practice
Beijing is a huge city. It takes an hour to get there by bus. That’s almost one fifth of the world’s population. That makes over 131.4 million births a year.
②
Health problems Example: __n_o_t_e_n_o_u_g_h_____ __h_o_s_p_i_ta_l_s______
③ Problems for the government
Examples:
__n_e_e_d_m__o_r_e_s_c_h_o_o_l_s_a_n_d__b_u_s_e_s_______ __n_e_e_d_b__et_t_e_r_p_u_b_l_ic__s_e_rv_i_c_e_s_________ __n_e_e_d_m__o_r_e_p_o_l_i_c_e_t_o_p_r_o_t_e_ct__p_e_o_p_le___
When you see a table or a chart, look carefully at the labels and graphs to make sure that you understand what they are showing. Look at the chart below. What is it comparing? What can you conclude?
1 Joining a car club is cheaper / more expensive than having a personal car.
2 People in car clubs pay for / do not pay for a car when they drive.
3 People in car clubs sometimes / never take a bus or ride a bike.
4 Complete the passage with a, an or the where necessary.
Mina is (1) __a_n_eighteen-year-old girl. She has got (2) _a___brother and (3) ___a__sister. Mina is (4) _t_h_eoldest child in (5) __th__e family. She lives in (6)__a__very big city. She has (7) ___a___job in (8) ___a__hotel. She hopes that one day she will have (9)___a__chance to go to (10) __/___college.
2 Their flat is too large for two people. They want to find a _s_m_a_l_le_r_one.
3 Anna always talks about her ideas. I think she needs to listen __m_o_r_e__.
to get clean for daily use. More than 3.4 million people die each year from drinking and washing with polluted water. So let’s do everything we can to stop the pollution and save water.
Hale Waihona Puke 2. Read your answers to Activity 1 to the whole class. China has a population of…
Now listen and check.
3. Read the chart and answer the questions.
1 Which city had the largest population in 2000? Tokyo had the largest population in 2000.
4 Which city / cities do you think will have the biggest population problem? Why?
I think Mumbai will have the biggest population problem because its population will increase the fastest.
4 There are a lot of parks in this city. I think there are _f_e_w_e_r__parks in a lot of other cities.
6 Complete the diagram showing population problems. Use the words in the box to help you.
air city country hospital increase
public service traffic
water
Problems of Arnwick
People move from_t_h_e_c_o_u_ntryside
People arrive in _t_h_e__ci_t_y__
but it is not a problem any more.
9 Listen and choose the best summary. a)It is cheaper to share a car than to have a
personal car. b) People in a car club do not often take
The (1) __p_o_p__u_la_t_io_n___of the world is increasing quickly. Why is this happening? Because more babies are born every year and
people also live longer. Many people are leaving the(2)c_o_u_n_t_r_y_si_d_e to work in the cities, but there is not enough (3) __sp_a_c_e_____for so many people.
4 People in car clubs probably are / are not healthier.
11 Work in pairs and discuss this question.
Do you think car clubs would be popular in China? Why / Why not?
1. Work in pairs. Match the countries with their populations.
1 China 2 the USA 3 Australia 4 New Zealand
a) 4,437,000 b) 22,956,000 c) 314,791,000 d) 1,370,537,000
7 Complete the passage with the words in the box.
countryside pollution population
space
traffic
Our world is facing many problems. Two of the biggest are increasing population and pollution.
2 Which city’s population will increase the most from 2000 to 2025?
Mumbai's population will increase the most from 2000 to 2025.
3 Which city will have a larger increase in its population, New York or Mexico City? Mexico city.
Problems: Population_i_n_c_r_e_a_s_es___
①
Environmental problems
Example:a_i_r_p_o_l_lu_t_i_o_n___ w__a_te_r__p_o_ll_u_t_io_n_ _t_o_o_m__u_c_h_t_r_a_f_fi_c _r_u_b_b_i_sh________