B3 U3 B

合集下载

运输问题模型

运输问题模型


目标可以减少,说明当前
解不是最优解
闭回路法调整
选x22进基,找到闭回路
x12 5-
x14 1 +
x22 +
x24 5-
X22最多增加5
x12 5-5 x22 + 5
x14 1 +5 x24 5-5
X22进基,x12和x24经过调整同时变成 零。但是要注意只有一个变量出基。
例如:令x12出基
B1
B2
B3
B4
产量
A1 A2 A3 销量
× 2
3 1
× 8
3 ,0
×
9
10
×
3
4
4
4
2
8
4,0
79 2 5,2 5 7,3 6
B1
B2
B3
B4
产量
A1 A2 A3 销量
×
×
2
9
10
7
3
×
×
2
1
3
4
2
×
4
8
4
2
5
3 ,0
8
4,0 6,4
9 5,2,0 7,3
B1
B2
B3
B4
产量
A1 A2 A3 销量
7
-1
2
5
1
3
4
2
7
3
4
3
8
4
2
5
3 ,0
8,5 4,0 6,4,0
9,5 5,2,0 7,3,0
重新计算检验数
A1 u1=0
A2 u2=-5
A3 u3=-5 销量
B1

集装箱箱型代码

集装箱箱型代码
H5
H6
H7
H8
H9
U/5
敞顶式集装箱
UT
-端或两端开口
-端或两端开口并有活动的上端梁
-端或两端以及一测或两侧开口
-端或两端以及一测或两侧开口并有活动的上梁
-端或两端开口以及一测部分开口和另一侧全部开口
-全部敞顶,带固定的侧壁(无开门)
-备用号
U0
U1
U2
U3
U4
U5
U6
-备用号
-备用号
-备用号
U7
表1
代码/原代号
箱型
箱型群组代码
主要特征
箱型代码
G/0
通用集装箱(无通风装置)ห้องสมุดไป่ตู้
GP
-端或两端有箱门
-货物的上方有透气罩
-端或两端设有箱门,并且在一侧或两侧亦设"全开式"箱门
-端或两端设有箱门并且在一侧或两侧亦设"局部"箱门
-备用号
-备用号
-备用号
-备用号
-备用号
-备用号
G0
G1
G2
G3
G4
G5
G6
G7
U8
U9
P/6
平台(和台架式)集装箱
-上部结构不完整
-固端结构
-折端结构
-带完整的上部结构的台架式集装箱
PL
PF
PC
PS
-平台集装箱
-双固端结构
-固定角柱,活动侧柱或活动顶结构
-可折的完整端结构
-可折角柱,活动侧柱或活动顶结构
-散顶、敞端(骨架式)
-备用号
-备用号
-备用号
-备用号
P0
P1
P2

PHASE伺服电机说明书,安装尺寸

PHASE伺服电机说明书,安装尺寸

电机可选配件/Available Options .............................................................................................. 4
电机和机器保护/Motor and Machine Protection ..................................................................... 5
Grade R (reduced tolerance) according to IEC 72- DIN 0530
Cylindrica l without keyway, tolerance j6, for interference mounting with shrink rings; axial threaded hole; sizes 3,5,7: universal shaft with ground half-key Natural convection IC0041; sizes 10 and 13, designed for process lines and sustained operation at high speed, option F, forced cooling over frame with fan servo controlled by the motor, overall protection grade IP 54; sizes 7, 10 a nd 13: water cooling (option C) with IP 67 protection
任意
法兰B5
最小化的EMC干扰
IP 67

PEP小学英语四年级上册《U3B3 Read and Write》精品教案

PEP小学英语四年级上册《U3B3 Read and Write》精品教案

PEP小学英语四年级上册《U3B3 Read and Write》精品教案A Friendship Trip教学内容:Unit3 B Read and write教学目标:1. 四会掌握Ww, Xx, Yy, Zz的大小写字母及单词boy, girl, friend.的书写。

2. 能够听、说认读每个字母的三个例词:window, watermelon, walkman, taxi, box, six, yellow, yo-yo, yacht, zoo, zipper.3.了解英语俗语:A fried in need is a friend indeed. 对学生进行爱的教育,培养学生乐于交朋友的情感。

教学重点:四会字母和单词的掌握: Ww, Xx, Yy, Zz, boy, girl, friend.教学难点:1. 小写字母x,y的书写。

2. 单词zipper的发音。

教学准备:课件,练习纸,练习题,彩色粉笔。

教学过程:一、Preparation1. 师生合唱字母歌,活跃气氛。

T:Hello,boys and girls.S: Hello,Miss Wang.First,let's sing an ABC song.Oh, a nice song.2. Free talk:自由交谈,引出话题。

T: I am your new teacher. You know I'm Miss Wang. But what's your name?You, please. What's your name?S: My name's...T: Nice to meet you, Miss/Mr...S: Nice to meet you, too..... ....T: Wait, boys and girls.Do you have a friend?S: Yes.T: You, please. Do you have a friend?S: Yes.T: Boy or girl?S: Boy/Girl.T; What's his/her name?S:... ...T: Very good. Sit down please.You, please. Do you have a friend?S:..二、Presentation/Practice:1.讲故事,记单词:T:I have a friend, too. He is a boy. His name is Zebra. Look,he comes. 课件呈现Zebra的图片,介绍:This is Zebra. 领读Zebra.呈现西安动物园的图片:介绍:He lives in Xi'an Zoo. 领读zoo.But now he is unhappy. (课件呈现难过表情)Let's go to Xi'an Zoo and visit him. Ok?(放慢速度)S: Ok.T: Let's go to Xi'an. (出示去西安的图片)Here I take a box for Zebra.(呈现box图片),领读box.Let's see what's in it..呈现watermelon.图片,示范读,出示单词,领读。

高中-英语-人教版(2019)-必修 第三册-B3 U3 writing 知识点

高中-英语-人教版(2019)-必修 第三册-B3 U3 writing 知识点

interesting sights, smells, and sounds of China. Portsmouth Square is also a key site,
being the centre of Chinatown. It has a long and famous history, with the author
1). With the problem _s_e_tt_le_d____(settle), he went home happily. 2). The teacher told the students to settle down to _s_tu_d_y_i_n_g_(study) the text. 3). After he _s_e_t_tl_e_d__(settle) down in the city, he wrote her a letter to invite her to visit his new house.
4. Does the city/town introduction contain all the important information?
contain vt. 包含;含有;容纳 contain oneself 控制自己 container n. 容器
① I'm glad to find the book which _c_o_n_ta_i_n_s(contain) all the information Ineed. ②I'm so angry that I couldn't __c_o_n_ta_i_n_m__y_s_e_lf_(控制我自己). 既学既练 ①There are 60 students in our class,_c_o_n__ta_i_n_in_g__(contain) 35 boys and 25boys. ②The _c_o_n_t_a_i_n_e_r__(contain) contains many kinds of fruits, including apples. ③Hearing the news, he couldn”t containh_i_m_s_e_l_f (he) and burst into laugh.

B3-U3-课文

B3-U3-课文

Unit 3 HumanitariansReading 1 John Bul Dau and the “Lost Boys of Sudan”1 In Northeastern Africa from 1983 to 2005, when Sudan was one country, the Second Sudanese Civil War was fought between the north and south. During that time, about two million people died from war, hunger, and disease. Five million people were displaced, including the 27,000 “Lost Boys of Sudan” who were driven from their villages by the war. Among these boys was a resilient, persevering, and courageous born leader named John Bul Dau.2 Dau’s challenges began in 1987, when he was 13 years old. His village in the south was attacked by government troops from the north. As bullets from guns shrieked and his village burned, Dau made an escape. In the chaos, he became separated from his family and had to survive on his own. After a while, he joined thousands of other boys as they escaped on foot. We now know these boys as the “Lost Boys of Sudan.” At that time, Dau didn’t know that his journey would be over 1,000 miles (1,609 kilometers) long and last 14 years. He didn’t know that he would survive his many trials, and show leadership, compassion, endurance, and the courage of a hero.3 Many of the boys who escaped the fighting had been taking care of their cattle when the soldiers attacked their villages. They ran when they saw the soldiers coming and hid anywhere they could. At first, the boys were alone but eventually they came together as a group. As Dau and the other “Lost Boys” walked across Sudan, they faced many life-threatening challenges. Every day was a test of strength, courage, and endurance.4 As the soldiers went after them, the boys encountered the added dangers of wild animals, hunger, thirst, and illness. Some boys were killed by lions. At night, the boys hid in trees to get away from the wild animals. They ate grass, tree leaves, and mud. Hunger and thirst were their constant companions. Like a herd of desperate antelope, they searched for water in a dry wilderness while keeping an eye out for their hunters. Their tongues were like sandpaper and their stomachs an empty, bottomless hole. They were barefoot and wore thin pieces of clothing that didn’t protect them from the sun during the day and the cold desert at night. Many died, as death followed them like a hungry animal. And all the time, fear and loneliness hung over them like a dark cloud, and they thought constantly of their parents and longed to see their families again.5 Yet Dau persevered courageously by putting one foot in front of the other along the endless journeyahead. He did not only think of himself. Caring and compassionate, he looked after the younger children, some only two or three years old. As one of the older boys, he led several groups on their journey over hundreds of miles. He was a young leader and a source of comfort for the suffering children.6 Finally, the boys reached a refugee camp in Ethiopia. It must have seemed like finding a lake in the desert. They found shelter there for almost four years. But war broke out there too, so the boys escaped back to Sudan. The Ethiopian soldiers pushed them to the border, where they had to cross the Gilo River. The soldiers shot at them, so the boys jumped into the water. Many drowned because they couldn’t swim. Others were eaten by crocodiles. And many were shot before they reached the other side.7 Back in Sudan the boys went to a refugee camp, but there was no relief from their suffering. The government of the North heard that the boys had returned. Twice every day the military bombed the camp. The boys decided to move again. With the Northern Sudanese soldiers following them, many of the boys were killed or taken along the way. Somehow, Dau and the other survivors found the strength and courage to continue their escape to safety. Again, Dau showed his leadership, courage, and compassion as he cared for and led groups of boys on their journey.8 Finally, they reached a refugee camp in Kenya, where Dau stayed for the next 10 years. Now 17, he attended school for the first time in his life. He started out with only sticks to write his numbers and letters on the ground. Nevertheless, Dau was a hardworking student. Determined not just to survive but somehow to succeed, he received the Kenya Certificate for Secondary Education.9 Over the years, people around the world learned about the “Lost Boys”. In the United States, several organizations started programs to resettle the refugees. In 2001, Dau became one of the 3,800 chosen to begin new lives in the U.S. He joined 140 who were brought to Syracuse, New York. Like so many others, Dau experienced culture shock in his new country. He felt like a fish out of water in the modern city. Everything was so different from anything he had ever known or experienced before. On his first trip to a supermarket, he may as well have been on the moon. But as he had shown time and again, John Bul Dau was a resilient young man. Eventually, he adjusted to his new life, and with his usual courage, determination, and hard work, he made another journey—this time on the road to success. Working 60 hours a week at two and sometimes three jobs, he earned enough to bring his mother and sister from Sudan. He also received an associate’s degree and a bachelor’s degree from Syracuse University.10 Dau’s success was far from the end of his story. The leadership, compassion, and caring he showed as a young man followed him into adulthood and led him to start three nonprofit organizations. In 2003, hehelped start the Sudanese Lost Boys Foundation of Central New York to raise money for education and medical expenses of the other “Lost Boys” living in the United States. Then in 2005, Dau was one of the founders of the American Care for Sudan Foundation, which raises money to build and operate clinics in Southern Sudan. In 2006, Dau told his life story in a co-authored book, God Grew Tired of Us. He wrote his story so people would learn about the “Lost Boys” and the people of Southern Sudan. A documentary was made with the same name, and it won awards. Dau believes there is a reason why he survived—to help his people.11 Today, John Dau is the president of both the John Dau Foundation and the South Sudan Institute. In his efforts to bring peace, hope, and help to the people of South Sudan he has won many awards and raised millions of dollars. Dau has also become a well-known speaker. He tells people to always be hopeful and to never give up, even when things are at their worst. Dau doesn’t only speak those words. He is a living example of courage, resilience, and perseverance under the most hopeless and unimaginable circumstances. “Keep trying,” he tells people. “You can’t give up.”Reading 2 Patrick Meier, Crisis Mapper1 What can speed humanitarian response to tsunami-ravaged coasts? Expose human rights atrocities? Launch helicopters to rescue earthquake victims? Outwit corrupt regimes?2 A map.3 But not just any map. Patrick Meier pioneers the lifesaving new field of crisis mapping and makes it available, accessible, and free to humanitarian organizations and volunteers across the globe. As director of crisis mapping at the nonprofit technology company Ushahidi and co-founder of the Standby Volunteer Task Force, he is helping to revolutionize the power and effectiveness of relief efforts worldwide.4 Imagine the chaotic scene on the ground as any natural disaster or human rights crisis unfolds. Then imagine an online map lit up with crucial information pouring in, real time, reflecting exactly what is happening, what is most urgently needed, and precisely where.5 Welcome to the 24/7 world of crisis mapping, where texts, tweets, emails, and mobile phone photos and videos meet the world’s most highly respected, official players in humanitarian response. Meier isbringing the two worlds together for the first time, connecting an explosion of social media and satellite imagery with the United Nations, U.S. Marines and Coast Guard, the World Health Organization, Amnesty International, and other groups that can mobilize help when the worst crises hit.6 Situational awareness is key to allocating resources and coordinating logistics,” says Meier. “These dynamic ever-changing maps are like having your own helicopter. They provide a bird’s-eye view as events unfold across time and space. Gaining information like this straight from crisis zones is a game changer; these technologies didn’t exist just a few years ago.”7 Meier’s nonprofit company, Ushahidi, provides free, open-source platforms that allow anyone in the world to gather information and use it to create live, crowdsourced, multimedia maps. Ushahidi, which means “witness” in Swahili, began during Kenya’s post-election violence in 2008.8 “It was a simple Google map of Kenya with a form people could fill out to describe what they saw during the violence,” he explains. “An SMS option was also provided so people could send text messages.” Since then, the technology has been refined and used in more than 140 countries with software available in 20 languages.9 When crises occur, the Standby V olunteer Task Force gathers messages, photos, video, and high-resolution satellite imagery and integrates them on a live Ushahidi map. More than 800 volunteers from 80 different countries make up the decentralized network that works closely with local and international responders. The trained, tech savvy mappers mobilize at a moment’s notice. Since they occupy every time zone, work can continue around the clock. “Anyone can join and use a skill set they already have or learn a new one,” says Meier. “These people are passionate about helping and making a difference.”。

高中英语单词转换强化训练U3 B3

高中英语单词转换强化训练U3 B3

高中英语单词转换强化训练U3 B3(为语法填空题作铺垫)贵阳市乌当中学高力超必修3Unit 31. birthplace(词根、相关单词)2. bring up(同义词、同义词组)3. novel (同义词)4. adventure(同义词)5. author(同义词)6. scene (同义词)7. pavement (同义词)8. businessman (另一个名词、形容词、副词)9. permit (同义词、反义词)10. ahead (反义词, 同义词、同义词组)11. go ahead (同义词组)12. by accident(同义词组)13. fault (同义词)14. spot(同义词)15. passage (同义词)16. account (同义词、同义词组)17. account for (同义词组)18. seek (同义词)19. patience (形容词、副词)20. contrary(同义词组)21. unbelievable (反义词、反义动词、名词)22. dessert(同义词)23. amount (同义词)24. take a chance (同义词、同义词组)25. rude (同义词、反义词)26. manner(同义词)27. genuine (同义词)28. rag (同义词组)29. indeed(同义词)30. as for (同义词、同义词组)31. bow (同义词)32. barber(同义词)答案:1. birth, birthday2. raise, train, develop, teach, educate, present, put forward, come up with3. fiction, story, fancy, unfamiliar, fresh, abnormal, unusual4. risk5. writer6. round, spot, site, scenery, view, sightseeing7. sidewalk8. business, busy, busily9. allow, pass, passport, licence, forbid10. before, forward, in advance11. go forward12. by chance, once in a while, carelessly13. mistake, shortcoming, disadvantage, weakness, failure, trouble14. recognize, find, discover, place, site15. fare, channel, section16.think, consider, hold, regard as, take for, explain, state, account for, declare, explanation, reason, calculation17.result in, lead to, bring about, give rise to18. search, look for, search for, explore19. patient, patiently20. the other side, wrong side, opposite21. believable, believe, unbelief22. sweet23. quantity, number24. risk, adventure, take a risk, take risks25. impolite, polite26. politeness, habit, behavior, way, fashion, pattern27. real, sincere28. cloth waste29. really, truly30. about, on, as to31. bend down32. hairdresser。

用地性质分类表代码新

用地性质分类表代码新
U31
消防设施用地
消防站、消防通信及指挥训练中心等设施用地
U32
防洪设施用地
防洪堤、防洪枢纽、排洪沟渠等设施用地
U9
其他公用设施用地
除以上之外的公用设施用地,包括施工、养护、维修设施等用地
G 绿地与广场用地
绿地与广场用地
公园绿地、防护绿地、广场等公共开放空间用地
G1
公园绿地
向公众开放,以游憩为主要功能,兼具生态、美化、防灾等作用的绿地
G2
防护绿地
具有卫生、隔离和安全防护功能的绿地
G3
广场用地
已游憩、纪念、集会和避险等功能为主的城市公共活动场地
对居住和公共环境有一定干扰、污染和安全隐患的工业用地
M3
三类工业用地
对居住和公共环境有严重干扰、污染和安全隐患的工业用地
W物流仓储用地
物流仓储用地
物资储备、中转、配送等用地,包括附属道路、停车场以及货运公司车队的站场等用地
W1
一类物流仓储用地
对居住和公共环境基本无干扰、污染和安全隐患的物流仓储用地
W2
为社会提供福利和慈善服务的设施及其附属设施用地,包括福利院、养老院、孤儿院等用地
A7
文物古迹用地
具有保护价值的古遗迹、古墓葬、古建筑、古窟寺、近代代表性建筑、革命纪念建筑等用地。不包括已作其他用途的文物古迹用地
A8
外事用地
外国驻华使馆、领事馆、国际机构及其生活设施等用地
A9
宗教设施用地
宗教活动场所用地
类别代称
类别名称
内容
大类
中类
小类
R(居住用地)
居住用地
住宅和相应服务设施的用地
R1
一类居住用地

B3 U3语法(名词性从句-宾语从句&表语从句)

B3  U3语法(名词性从句-宾语从句&表语从句)

Pay attention: 如果主句是过去的时态,那么 从句的时态一定要用相对应的过去的某种时 态。当从句是客观真理,定义、公理、定理 时用一般现在时。
He asked whether his father will come back. had He said that he has seen it. The teacher said that the earth travels around the sun.
C. what the matter is
B. what was the matter
D. what the matter is
6. She told me that she________ you in London a year before.
A. had met B. met C. would meet D. has met
Exercises:
I. Choose the best answer
1.Can you tell me
the railway station ?
A. how I can get to
B. how can I get to
C. where I can get to D. where can I get to
1 ---I drove to Zhuhai for air show last week.
A you had a few days off? ---Is that ____
A. why B. when C. what D. where 2 His health is getting worse and worse. The reason is ____ C he drinks too much.

人教版八年级英语上册U3 Section B (2a—2e)基础练习(含答案)

人教版八年级英语上册U3 Section B (2a—2e)基础练习(含答案)

人教版八年级英语上册U3 Section B (2a—2e)基础练习(含答案)Ⅰ. 根据句意及首字母提示完成单词1. It is n________ for children to have enough time to exercise every day.2. I have a good friend. He is a m________ for me.3. If you study harder, you will get better g________.4. I never forge t the s______ “No pains, no gains”.5. He doesn't study math well and we s________ help him more after class.Ⅱ. 用所给词的适当形式填空1. His sister is quieter and more serious than most ________(kid).2. She likes to have friends who are ________(difference) from her.3. His words make me ________(feel) better.4. Gina is very outgoing, so it's easy for her ________(make) friends.5. That's why I like ________(share) my toys with her.Ⅲ. 单项选择1.—Do you enjoy ________ in this city?—Yes, I do.A. to liveB. livingC. liveD. to living2. Larry is different ________ his classmates. He's always quiet.A. forB. fromC. toD. on3. ________ you don't give up(放弃), your dreams will come true.A. As long asB. As soon asC. As well asD. As often as4. The picture is very ________ that one. There are only a few differences.A. strict withB. worried aboutC. similar toD. different from5.—Is the film interesting?—I thought it would be. But ________,it's very boring.A. in factB. in allC. such asD. because ofⅣ. 完成句子1.他的答案和我的一样。

新高考总复习全效新方略与教材话题对应表

新高考总复习全效新方略与教材话题对应表
《新方略》
新方略
人教
U1 外貌特征 U2 性格与行为特征 U3 人体与动作 U4 家人、朋友与周围的人 U5 生活起居 U6 社交礼仪 U7 问题与冲突 U8 学校生活(一) U9 学校生活(二) U10 学校生活(三) U11 语言学习 U12 文学艺术 U13 现代科技 U14 互联网 U15 传媒 U16 工作与职业(一) U17 工作与职业(二) U18 工作与职业(三) U19 成功与失败 U20 兴趣与爱好 U21 文娱 U22 节假日及活动 U23 购物 U24 饮食 U25 健康与医疗 U26 体育运动 U27 旅游 U28 交通 U29 经济生活 U30 人文社会 U31 刑事与战争 U32 人口、自然与环境 U33 生物 U34 天气与自然灾害 U35 时间 U36 空间、存在与特征 U37 计量 U38 变化 U39 表达观点 U40 原因、目的与结果 U41 让步、条件与对比
B4U1;B5U1 B1U5;B5U1
B1U1;B7U4 B7U1 B4U3;B4U4
B1U2 B2U1; B6U1; B6U2;B8U4 B2U3;B3U4; B5U1; B5U3;B7U2;B8U3
B5U4
B4U1 B2U2;B2U5 B2U5 B3U1; B4U5 B3U3 B3U2;B3U3 B3U2;B5U5; B6U3 B2U2 B1U3; B3U5; B5U2;B7U5
B4U2;B7U5;B8U1;B8U5
B6U4;B6U5 B2U4;B7U3;B8U2 B1U4
B3U5;B5U2
B1U5;B2U1
U42 态度(一)
U43 态度(二) U44 社会交往(一)
U45 社会交往(二)
U46 情感(一) U47 情感(二) U48 前缀(一) U49 前缀(二) U50 名词后缀(一) U51 名词后缀(二) U52 名词后缀(三) U53 形容词后缀(一) U54 形容词后缀(二) U55 动词与副词后缀 U56 合成名词 U57 其他合成词 U58 高考常考动词 U59 高考常考短语动词 U60 高考常考短语

第三章一维射影几何学

第三章一维射影几何学

或者称为A,B两点所成的点偶与C,D两点所成的点偶
成调和共轭
例1:三角形的内角平分线与外角平分线 A
AB BD AC DC
AB BE AC EC
∴ D E
BC, DE 1
B C 定理6:设 AB, CD 1 0为CD的中点,则 0C 2 0 A 0 B
例1:已知点A(1,4,1),B(0,1,1),C(2,3,-3)在一 条直线上,试求在这条直线上的第四点D的齐次坐标,使交比 (AB,CD)=-4 解:将A,B两点取为基点,C点表为A,B两点的线性组合
x1 a1 b1
x2 a2 b2
x3 a3 0 b3
x =u a +v b A B
C
定义2 线束:动直线绕一个定点旋转所产生的图形称为线束。 那个定点称为线束的心。
设 L1[a1 , a2 , a3 ], L2 [b1 , b2 , b3 ] 为过定点的直线 L [u1 , u2 , u3 ]
定理4:只限于一对点之间的交换,则交比值转变为其倒数
定理5:交换中间两点,则交比值转变为1与原值之差
由定理3~定理5可知:24个交比一般取六个不同的数值:
AB, CD BA, DC CD, AB DC, BA 1 (2) AB, DC BA, CD CD, BA DC , AB (3) AC, BD BD, AC CA, DB DB, CA 1 1 (4) AC , DB BD, CA CA, BD DB, AC
第二种情况
1
AC AD BC BD
AC BD ABC 1 AB, CD AD BC ABD

平面单元等效结点荷载计算

平面单元等效结点荷载计算

b1 y2 y3
1,2,3轮换
c1 x3 x2
u
1 2 A [(a1
b1x
c1 y)u1
(a2
b2 x
c2
y)u2
(a3
b3 x
c3 y)u3 ]
v
1 2 A [(a1
b1x
c1 y)v1
(a2
b2 x
c2
y)v2
(a3
b3 x
c3 y)v3 ]
2024年5月
2
1. 位移函数
若令:
N1
1 2A
0
1
0
ai
b
2024年5月
kn1
0
knn an
Rn
19kni
b
4. 边界条件的处理
图示结构,对边界支承条件处理后,整体刚度矩阵修改为:
1 0 0 0 0 0 0 0 0 0 0 0
1 P1y
** *
* * 0 0 * * * 0
* * * * 0 0 * * * 0
k1i
k1n a1 P1
算机处理) α>>1
ki1
kii
kin
ai
kiib
kn1
kni
knn an Pn
第i行展开之后:
ki1a1 kiiai kinan kiib 两边同除以:
1
(ki1a1
kii1ai1 kii1ai1
近似满足ai b的条件
由于引入位移约束条件通常在整体刚阵及节点载荷形 成后进行(也有在此之前进行的,如直接删除法),即此 时[K]、{R}中的元素均已按一定顺序分别储存于相应的数 组,故引入位移约束时,要求尽量不要打乱[K]、{R}的储 存顺序。

U3B3 Happiness-w

U3B3 Happiness-w
in line with: in accordance to
养老金将会跟着通货膨胀的水平增长。 养老金将会跟着通货膨胀的水平增长。 Pensions will be increased in line with inflation. Income tax fluctuates in line with the change in one’s earning. Collocations: 专业, 专业, 行业 line of business 给人写短信(便条) 给人写短信(便条) drop sb. a line 正确, 正确,对的 on the right lines 是某人的专长 be in sb.’s line 对某事采取坚定的态度 take a firm line on
19. 在自身找到积极的力量 find the positive force in oneself 20. 肤浅的快乐 superficial pleasures 21. 我们的公益观 22. 一套清晰的理念 our concept of the common good a clear set of ideas
Useful Expressions
12. 得失平衡的游戏 13. 永无止境的竞争 14. 能力偏低的人 15. 自己没有获益 16. 事实上 17. 内在的价值 18. 一个空前的个人主义的 时代
a zero-sum game rat race people in the bottom half of the ability range at no gain to oneself in effect intrinsic worth an age of unprecedented individualism
8. 和平均水准相比有所上升 move up relative to the norm 9. 当休闲与工作的天平偏向 balance between leisure and work shifted towards work 工作 10. 以自己为参照物 11. 来源于 relative to itself derive from

模糊数学及其应用5

模糊数学及其应用5
B A o R (b1 b2 b3 b4 b5 )
m m min( , ai ri1 ) min( , ai ri 2 ) min( , 1 1 1 i 1 i 1 (0.202 0.210 0.258 0.182 0.148)
a
i 1
m
i
ri 3 ) min( , 1
第六讲 模糊综合评判
在现实生活中,常常需要对某些事物进行评价。 根据我们的经验知,不论对什么事物进行评价,若 只考虑一个因素,而且又有明确的衡量标准,则问 题很容易解决。比如若只比较A、B两人的大小,则 只需要比较两人的年龄即可。但要考虑多个因素, 而且有些因素的评价标准又不那么确切,只是一个 模糊概念,比如A、B两人谁更优秀?这时评价问题 就变得非常复杂。为了对这种情况进行评价,汪培 庄在20世纪80年代初提出了综合评判模型。此模型 以它简单实用的特点,迅速波及到国民经济和工农 业生产的方方面面。
b j (a1 * r1 j ) *(a2 * r2 j ) **(am * rmj ) ,

j 1,2,,(1) n

(1)式是模糊综合评判的一般模型,记为 M (*, 。王光远 *) (1984)根据对运算符“ ”的不同定义,总结出了四种不同 的模糊综合评判模型。这四种模糊综合评判模型分别为:
a
i 1
m
i

m
i
ri 5 )
用此模型算得的评语集B的最大值是。若用极大隶属度原则 进行综合评判,该公园属于三级——“有点烦恼”。
2012-12-7 10
55 65 1 0.202 0.210 0.258 0.182 0.148 75 73.64 S 0.202 0.210 0.258 0.182 0.148 85 95

九上u32d课文翻译人教版

九上u32d课文翻译人教版

九上u32d课文翻译人教版原文:How I learned to learn EnglishLast year my English class was difficult.First of all,it wasn’t easy for me to understand the teacher when shetalked.To begin with,she spoke too quickly,and I couldn’t understand every ter on,I realizedthat it doesn’t matter if you don’t understand every word.I was also afraid to speak in class,because I thought my classmates might laugh at me.I couldn’t always make plete sentences either .Then I started to watch English-language TV.It helped a lot.I think that doing lots of listening practice is one of the secrets of beaing a good learner.Another thing that Ifoundvery difficult was English grammar.So I decided totake lots of grammar notes in every class.The Istarted to write my own original sentences using the gramm ar I was learning.It’s amazing how much this helped.Now I am enjoying learning English and I got an A this term.My teacher is very impressed.8页reading原文:How do we deal with our problems ?Rich or poor, young or old, we all have problems. And unless we deal with our problems, we can easily bee unhappy. Worrying about our problems can affect how we do at school. It can also influence the way we behave with our families. So how do we deal with our problems? There are many ways.By learning to forgetMost of us have probably been angry with our friends, parents or teachers. Perhaps they said something you didn’t like, or you felt they were unfair. Sometimes, people can stay angry for years about a small problem. Time goes by, and good friendships may be lostWhen we are angry, however, we are usually the ones affected. Perhaps we have seen young children playing together. Sometimes they have disagreements, and decide not to talk to each other. However, this usually does not last for long. This is an important lesson for us: we can solve a problem by learning to forget.By regarding problems as challengesMany students often plain about school. They might feel they have too much work to do sometimes, or think the rules are too strict.We must learn how to change thes e “problems” into “challenges”. Education is an important part of our development. As young adults, it is our duty totry our best to deal with each challenge in our education with the help of our teachers.By thinking of something worseBy paring yourself to other people, you will find your problems are not so terrible. Think about Stephen Hawking, for example, a very clever scientist, who regards his many physical problems as unimportant. He can't walk or even speak, but he has bee very famous and successful. We are probably quite healthy and smart. Let’s not worry about our problems. Let's face the challenges instead.翻译:我们如何处理我们的问题?无论是富有还是贫穷,年轻还是年老,我们都有问题。

HY2213全系列

HY2213全系列

.
© 2012 HYCON Technology Corp
DS-HY2213-V02_SC page3
HY2213
1 节锂离子/锂聚合物电池充电平衡 IC
1. 概述
HY2213 系列芯片,内置高精度电压检测电路和延迟电路,适用于多节电池组的单节锂 离子电池充电平衡控制的电平监视芯片。 本芯片适合于多节电池组对 1 节锂离子电池的进行充电平衡控制。
3. 应用
多节锂离子可再充电电池组
© 2012 HYCON Technology Corp
DS-HY2213-V02_SC page4
HY2213
1 节锂离子/锂聚合物电池充电平衡 IC
4. 方框图
5. 订购信息
产品名称定义
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© 2012 HYCON Technology Corp
.
电池充电平衡IC应用电路示例 ................................................................................................................... 8 工作说明 .................................................................................................................................................... 9 正常工作状态 ......................................................................................................................................... 9 过充电状态 ............................................................................................................................................ 9 待机状态 ................................................................................................................................................ 9 特性曲线(典型数据) ............................................................................................................................ 10 封装信息 .................................................................................................................................................. 11 SOT-23-6 封装 .................................................................................................................................... 11 修订记录 .................................................................................................................................................. 12

拓广平面上的齐次坐标

拓广平面上的齐次坐标

§ 1.2 拓广平面上的齐次坐标
六、有关齐次坐标的基本结论(Thm.1.5~1.9;1.5'~1.9')
注 关于点列的参数表示
齐次参数表示 将(4)中的c=la+mb的形式称为以相异二点a,b为
基点的点列的齐次参数表示或双参数表示. l, m R, l 2 m2 0. 非齐次参数表示 令 m / l. 则有c a b. 称为以a,b为基点
定理1.10 在实射影平面上, 方程
u1x1 u2 x2 u3x3 0
(1.6)
表示直线或点. 当xi为流动变量而ui为常数时表示直线[u1,u2,u3]; 反之表示点(x1,x2,x3).
由定理1.10, 线坐标映射ψ可以由点坐标映射φ诱导.
§ 1.3 射影平面
二、实射影平面的模型
所谓模型(实现)是对一般集合P, L的元素赋予具体意义, 使之满 足定义1.9. 我们可以在任何模型上展开射影几何研究.
注2 将点与直线的齐次关联关系(1.4)两边同时除以u3x3, 得到 点与直线的非齐次关联关系为
Ux Vy 1 0.
(1.5)
显然,得到(1.5)的基础是u3x3≠0. 因此,无穷远直线上的点和过 原点的直线均不满足非齐次关联关系.
从非齐次关联关系角度:过原点的直线、无穷远直线上的点 没有非齐次坐标,也没有非齐次方程!
§ 1.2 拓广平面上的齐次坐标
三、直线的齐次坐标方程
定理 1.2 在齐次坐标下,直线的方程为
3
ui xi 0.
i 1
反之,(1.1)表示直线. 称(1.1)为直线的齐次方程.
(1.1)
注1
定理1.2的证明中, 从(2)到(3)的“即”, 由x3≠0到可以 x3=0, 已经将通常直线拓广.
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Unit 3 My Friends第四课时【学习内容】B部分Let’s talk, Let’s chant和C部分Let’s check..【课标与教材分析】课程标准要求学生能进行简短的对话,能在教师帮助和图片提示下进行简短对话。

义务教育是全民教育的重要组成部分,义务教育阶段的英语课程应面向全体学生。

课程要体现以学生为主体的思想, 在教学目标、教学内容、教学过程、教学评价和教学资源的利用与开发等方面都应考虑全体学生的发展需求,课程应成为学生在教师指导下构建知识、发展技能、拓展视野、活跃思维、展现个性的过程。

英语学习在很大程度上是个性化的活动,学习者由于年龄、性格、认知方式、生活环境等方面的差异而具有不同的学习需求和学习特点。

只有最大限度地满足个体需求才有可能获得最大化的整体教学效益。

本课时要学习B部分Let’s talk, Let’s play.和C部分Let’s check.三部分内容。

Let’s talk部分内容比较多,对话比较长,配有三幅情景图辅助教学;Let’s play部分主要通过所给的提示句型进行任务教学,巩固所学句型,让学生在实际生活中运用所学内容。

调节气氛,激发学生建立友爱之情。

C部分Let’s check主要是听力能力测试。

【学情分析】学生在上节课的学习中,初步接触了关于兴趣爱好的表达方法,本节课教师要引导学生进行巩固练习。

同时还要培养学生运用句型、运用语言的能力。

优等生要能熟练表演句型,学困生能会读重点句型。

【学习目标】一、知识技能目标1. 能熟练朗读并模仿本节课主要句型:He has…../She has……。

2. 能表演本节课对话。

3. 能在实际生活中运用本节课对话(创编对话,“任务型”教学)。

4. 了解知识点:He / She has…: 对外貌特征的描述。

二、情感态度目标培养学生互相帮助,互相合作的能力。

【学习重点、难点】教学重点:让学生熟练掌握He has…../She has……。

教学难点:1.区别What's her name?与What's his name?2.区分A boy or girl? 选择疑问句的使用。

【学习准备】师生都准备B Let’s learn中的单词卡片、老师准备多媒体课件、录音机、磁带、VCD、Mike 和John的头饰等。

【学习过程】一、热身(Warm-up)(此环节用时5分钟)(一)我说我秀说唱做演,激情引趣(二)歌曲、歌谣中情绪热身Let’s chant师生一起说做上节课的(第25页)Let’s chant。

(三)复习旧知中知识热身1. 游戏:See it, say it快速认读课件中出现的单词。

2. Free talkT: What do you like?S1: I like sports.T: Who is your friend?S2: Li Fei.T: A boy?S2: Yes.T: What’s his name?S2: His name is Zhao Kai.T: What is like?S2: He is tall and strong.【设计意图】通过做动作和游戏比赛,既复习了上节课的内容,又为本课学习奠定了基础,师生之间自然交流导入新课。

二、呈现(Presentation)(此环节用时10分钟)(一)话题交流,导入新课教师承接Free talk,问一名女生。

T: What do you like?S1: I like music.T: Do you have a friend?S2: Yes.T: Boy or a girl?S2: A girl. (引导学生回答)T: who is she?S2: Her name is Li Ying.(二)情景创设,理解语意1.教师指着本班几个男生询问Who’s he ?(个别回答然后一起回答)He is … He has…接着教师指着本班几个女生询问Who’s she?(个别回答然后一起回答)She is …She has…2.教师穿插指男生、女生逐步提高速度,练习问答Who’s he ? He is …He has…Who’s she? She is …She has…既能使学生集中精力又强化练习突破难点。

(三)交际练习,版式呈现1. 小组内根据实际情况循环询问对方的朋友。

2. 通过板书呈现重点句型(四)问题视听,整体感知1. Watch VCD整体感知对话,回答问题:Does Mike have a friend? Boy or girl? Who’s he?2. Watch VCD again进一步理解对话。

【设计意图】创设情境可以让学生更好的理解语意,在师生交际中呈现新语言,学习新语言。

三、练习(Practice)(此环节用时10分钟)(一)跟读模仿,歌谣强化1. Listen and imitate.听录音模仿对话。

通过听录音纠正学生的发音,培养学生良好的语音语调,初步形成一定的语感语速。

2. 给课件中的人物配音。

注意学生的语音语调及表情、动作。

3. 分角色朗读对话。

师生读,男、女生读,Pair work读。

让学生在不同形式的模仿中进一步理解对话,为在实际生活中运用语言打基础。

4. Let’s play.出示课本上的My friend描述句型,帮助学生描述,大家互相猜描述的是哪个同学,激发学生热爱之情。

(二)游戏巩固,表演生成1. 游戏教师示范蒙上自己的眼睛慢慢走到一名学生身边问:Boy or girl? 学生根据实际情况回答,教师继续问: Who’s she? / She has…学生根据实际情况回答。

2. 小组表演对话。

学生们戴上Mike和John的头饰进行表演。

【设计意图】通过身体语言和课件来帮助学生理解并且运用本节课的主要句型,在巩固的基础上结合身边的事物进行练习,训练学生的思维,激发他们地参与欲望。

四、拓展(Extension)(此环节用时10分钟)(一)活动运用,任务落实1. 任务活动中运用——学以致用两人一组创编对话。

(描述本班的朋友)A: I have a friend.B: Boy or girl?A: A girl.B: Who’s she?A: Guess. She has big eyes and long hair. She’s tall. She’s quiet. She likes music. What’s her name?B: Her name is Liu Yun.A: Yes. / You’re right.B: I have a friend, too. He has small eyes, big ears. He is tall and strong. He likes sports. What’s his name?A: His name is Li Qiang.B: Yes. / You ’re right.2. 练习任务中落实——随堂检测【当堂测试题】Read and order( 2 ) Boy or girl?( ) I have a friend.( ) A girl.( ) Her name is Sarah.( ) What ’s her name?答案:2 1 3 5 4(二)总结赏析,情感升华A friend in need is a friend indeed. 患难中的朋友是真正的朋友。

(三)作业分层,自主拓展1.2.背诵对话。

3. 创编新对话。

【设计意图】通过任务活动,体现任务型教学及对学生综合运用语言能力的培养;随堂检测能帮助老师及时了解学生知识掌握的情况;分层作业可以使不同层次的学生在自己原有的基础上得到锻炼和提高。

【板书设计】【课后反思】这一节课下来我自己感觉教学过程很顺利,学生们都积极踊跃,乐于其中,我很开心。

另外我深深地感觉到有很多不足的方面:在平常的对话教学中,学生对表演创编这一环节做得更到位,孩子能达到“Perfect Talk ”的等级,在本节课中,孩子们仅是基本表演了对话,由于不是自己所教的学生,可能对话话创编的习惯没有,这也是我们下一步对低年级对话教学所努力的方向。

第五课时【教材内容】本课时为B部分第二课时,主要学习long/short hair, a green bag, brown shoes, blue glasses 几个单词。

【课标与教材分析】课程标准要求学生能认读所学词语,能读懂教材中简短的要求或指令。

义务教育是全民教育的重要组成部分,义务教育阶段的英语课程应面向全体学生。

课程要体现以学生为主体的思想, 在教学目标、教学内容、教学过程、教学评价和教学资源的利用与开发等方面都应考虑全体学生的发展需求,课程应成为学生在教师指导下构建知识、发展技能、拓展视野、活跃思维、展现个性的过程。

英语学习在很大程度上是个性化的活动,学习者由于年龄、性格、认知方式、生活环境等方面的差异而具有不同的学习需求和学习特点。

只有最大限度地满足个体需求才有可能获得最大化的整体教学效益。

教学重点:学生掌握本节课中的5个基本词汇:long/short hair, a green bag, brown shoes, blue glasses。

并结合M y friend has…进行练习达到在实际情境中运用的目的。

教学难点:注意单词glasses的发音【学情分析】本部分主要是学习单词, 学生对单词long/short, a green bag, brown, blue很熟悉了本课时内容掌握好不同的教授方法,学生很容易接受。

【学习目标】一、能力目标:1. 能够在学习本课单词的基础上,进行练习达到在实际情境中运用的目的。

2. 能够完成Say and draw部分的游戏。

二、知识目标:1. 能够听、说、认读本课单词。

2. 能够听懂、会说本课句型。

三、情感目标:使学生愿意在小组活动中积极与他人合作,互相帮助,共同完成学习任务。

【教学准备】多媒体课件、本课图片及词卡【教学过程】一、Warming up/Revision(热身/复习)(一) 我说我秀(二) 歌曲、歌谣中情绪热身P25 let’s chant(三)复习旧知中知识热身1. 快速闪现上课时所学重点句型。

2. 利用单词卡片复习A Let’s learn部分的单词。

3. 复习句型I hav e…利用A Let’s learn部分的单词卡片以及学生身边的同学操练巩固句型。

(四)评价分组中注意力热身Boy group and girl group。

【设计意图】通过卡片复习单词,运用单词,并且进一步地巩固上节课所学的句型,为本课的教学做好铺垫。

二、Presentation/Practice(新课呈现/操练)(一)话题交流,导入新课T:I have long hair.(二) 创设情境理解语意1.教授long /short hair(1)学习:教师出示课前准备好的大象和小老鼠的图片,带领学生对其特征进行描述。

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