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北师大初中数学八年级上册应用二元一次方程组——增收节支1教案

  • 新人教版高中英语必修3Unit 1 Festivals and celebrations-Discovering Useful Structure教学设计

    新人教版高中英语必修3Unit 1 Festivals and celebrations-Discovering Useful Structure教学设计

    4.That was an experience that frightened everyone. →That was _____________________. 答案:1. taking 2. being discussed 3. in the reading room 4. a frightening experienceStep 6 The meaning and function of V-ing as the predicative动词-ing形式作表语,它通常位于系动词后面,用以说明主语“是什么”或“怎么样”一种表示主语的特质、特征和状态, 其作用相当于形容词; 另一种具体说明主语的内容, 即主语等同于表语, 两者可互换。The music they are playing sounds so exciting. 他们演奏的音乐听起来令人激动。The result is disappointing. 结果令人失望。Our job is playing all kinds of music. 我们的工作就是演奏各种音乐。Seeing is believing. 眼见为实。Step 7 Practice1. It is ________(amaze) that the boy is able to solve the problem so quickly.2. Buying a car is simply _______(waste) money. 3. Please stop making the noise—it’s getting ________(annoy). 4. complete the passage with the appropriate -ing form.La Tomatina is a festival that takes place in the Spanish town Bunol every August. I think many food festivals are __________ because people are just eating. however, this festival is _________ because people don't actually eat the tomatoes. Instead, they throw them at each other! the number of people ________ part in this tomato fight, can reach up to 20,000, and it is a very __________ fight that lasts for a whole hour. The _______ thing is how clean Bunol is after the tomatoes are washed away after the fight. this is because the juice form tomatoes is really good for making surfaces clean!答案:1. amazing 2. wasting 3. annoying4. boring interesting taking exciting amazing

  • 新人教版高中英语必修3Unit 1 Festivals and Celebrations-Reading and Thinking教学设计

    新人教版高中英语必修3Unit 1 Festivals and Celebrations-Reading and Thinking教学设计

    The topic of this part is “Discover the reasons for festivals and celebrations.The Listening & Speaking & Talking part aims at talking about the experiences and feelings or emotions about the festivals and celebrations. This section aims at detecting the reason why the people celebrate the festivals, the time, the places, the types and the way of celebrations. It also explains why some traditions in the old celebrations are disappearing, like the firecrackers in the big cities and some new things are appearing like the prosperity of business or commerce. 1. Students can talk about what festivals they know and the reasons and the way of celebrating them.2. Students should learn the reading skills such as the headline and get the topic sentences, the structures of articles.3. Students can understand the past, the present situation of some festival around the world and why there are some changes about them. 4. Students can have the international awareness about the festivals.1. Students should learn the reading skills such as the headline and get the topic sentences, the structures of articles.2. Students can understand the past, the present situation of some festival around the world and why there are some changes about them.Step 1 Lead in---Small talkWhat festival do you like best ? Why ?I like the Spring Festivals because I can set off the fireworks, receive the lucky money and enjoy the Gala with my families.Step 2 Before reading---Pair workWhy do people celebrate different festivals ?The Spring Festivals is to celebrate the end of winter and the coming of spring and new life.The Mid-autumn Day is to celebrate the harvest and admire the moon.

  • 新人教版高中英语必修3Unit 1 Festivals and Celebrations-Listening &Speaking&Talking教学设计

    新人教版高中英语必修3Unit 1 Festivals and Celebrations-Listening &Speaking&Talking教学设计

    The theme of this section is “Talk about festival activities and festival experiences”.Festival and holiday is a relaxing and interesting topic for students. This part talks about the topic from the daily life of students’. In the part A ---Listening and Speaking, there are three conversations among different speakers from three countries(Japan, Rio and China), where the speakers are participating in or going to participate in the festivals and celebrations. So listening for the relationship among them is a fundamental task. Actually, with the globalization and more international communication, it is normal for Chinese or foreigners to witness different festivals and celebrations in or out of China. In the Conversation 1, a foreign reporter is interviewing a Japanese young girl who just had participated in the ceremony of the Coming-of-Age Day on the street and asking her feeling about the ceremony and the afterwards activities. Conversation 2, Chinese girl Li Mei is witnessing the Rio Carnival for the first time, and her friend Carla gives her some advice on the costumes which enables her to match with the carnival to have a good time. Conversation 3, a Chinese guide is showing a group of foreign visitors around the Lantern Festival and introducing the customs of the festival to them. The three conversations have a strong vitality and insert the festival and cultural elements from different countries. So perceiving the festivals and cultures from different countries is the second task. At the same time, the scripts also insert the targeted grammar --- v-ing as attributive and predicative, which students can perceive and experience in a real context and make a road for the further study. That is the third task. In the Part B--- Listening and Talking, the theme is “Talk about festival experience”, which is the common topic in our daily conversations. During the conversation, Song Lin, a Chinese student, asked Canadian friend Max about how to spend Christmas. In the conversation, Song Lin talked about experience and the feelings during the Chinese Spring Festival, during which there are not only some enjoyable things but some unpleasant things. After the listening, perhaps students find there are some similarities between Christmas and the Chinese Spring Festival as there are some differences in the origins and celebrations. For example, people always visit friends and relatives, decorate their houses, have a big dinner together, chat and give presents to each other.

  • 新人教版高中英语选修2Unit 1 Science and Scientists-Discovering useful structures教学设计

    新人教版高中英语选修2Unit 1 Science and Scientists-Discovering useful structures教学设计

    The grammatical structure of this unit is predicative clause. Like object clause and subject clause, predicative clause is one of Nominal Clauses. The leading words of predicative clauses are that, what, how, what, where, as if, because, etc.The design of teaching activities aims to guide students to perceive the structural features of predicative clauses and think about their ideographic functions. Beyond that, students should be guided to use this grammar in the context apporpriately and flexibly.1. Enable the Ss to master the usage of the predicative clauses in this unit.2. Enable the Ss to use the predicative patterns flexibly.3. Train the Ss to apply some skills by doing the relevant exercises.1.Guide students to perceive the structural features of predicative clauses and think about their ideographic functions.2.Strengthen students' ability of using predicative clauses in context, but also cultivate their ability of text analysis and logical reasoning competence.Step1: Underline all the examples in the reading passage, where noun clauses are used as the predicative. Then state their meaning and functions.1) One theory was that bad air caused the disease.2) Another theory was that cholera was caused by an infection from germs in food or water.3) The truth was that the water from the Broad Street had been infected by waste.Sum up the rules of grammar:1. 以上黑体部分在句中作表语。2. 句1、2、3中的that在从句中不作成分,只起连接作用。 Step2: Review the basic components of predicative clauses1.Definition

  • 新人教版高中英语选修2Unit 1 Science and Scientists-Learning about Language教学设计

    新人教版高中英语选修2Unit 1 Science and Scientists-Learning about Language教学设计

    Step 7: complete the discourse according to the grammar rules.Cholera used to be one of the most 1.__________ (fear) diseases in the world. In the early 19th century, _2_________ an outbreak of cholera hit Europe, millions of people died. But neither its cause, 3__________ its cure was understood. A British doctor, John Snow, wanted to solve the problem and he knew that cholera would not be controlled _4_________ its cause was found. In general, there were two contradictory theories 5 __________ explained how cholera spread. The first suggested that bad air caused the disease. The second was that cholera was caused by an _6_________(infect) from germs in food or water. John Snow thought that the second theory was correct but he needed proof. So when another outbreak of cholera hit London in 1854, he began to investigate. Later, with all the evidence he _7_________ (gather), John Snow was able to announce that the pump water carried cholera germs. Therefore, he had the handle of the pump _8_________ (remove) so that it couldn't be used. Through his intervention,the disease was stopped in its tracks. What is more, John Snow found that some companies sold water from the River Thames that __9__________________ (pollute) by raw waste. The people who drank this water were much more likely _10_________ (get) cholera than those who drank pure or boiled water. Through John Snow's efforts, the _11_________ (threaten) of cholera around the world saw a substantial increase. Keys: 1.feared 2.when 3. nor 4.unless 5.that/which 6.infection 7.had gathered 8.removed 9.was polluted 10.to get 11. threat

  • 新人教版高中英语选修2Unit 1 Science and Scientists-Reading and thinking教学设计

    新人教版高中英语选修2Unit 1 Science and Scientists-Reading and thinking教学设计

    Step 5: After learning the text, discuss with your peers about the following questions:1.John Snow believed Idea 2 was right. How did he finally prove it?2. Do you think John Snow would have solved this problem without the map?3. Cholera is a 19th century disease. What disease do you think is similar to cholera today?SARS and Covid-19 because they are both deadly and fatally infectious, have an unknown cause and need serious public health care to solve them urgently.keys:1. John Snow finally proved his idea because he found an outbreak that was clearly related to cholera, collected information and was able to tie cases outside the area to the polluted water.2. No. The map helped John Snow organize his ideas. He was able to identify those households that had had many deaths and check their water-drinking habits. He identified those houses that had had no deaths and surveyed their drinking habits. The evidence clearly pointed to the polluted water being the cause.3. SARS and Covid-19 because they are both deadly and fatally infectious, have an unknown cause and need serious public health care to solve them urgently.Step 6: Consolidate what you have learned by filling in the blanks:John Snow was a well-known _1___ in London in the _2__ century. He wanted to find the _3_____ of cholera in order to help people ___4_____ it. In 1854 when a cholera __5__ London, he began to gather information. He ___6__ on a map ___7___ all the dead people had lived and he found that many people who had ___8____ (drink) the dirty water from the __9____ died. So he decided that the polluted water ___10____ cholera. He suggested that the ___11__ of all water supplies should be _12______ and new methods of dealing with ____13___ water be found. Finally, “King Cholera” was __14_____.Keys: 1. doctor 2. 19th 3.cause 4.infected with 5.hit 6.marked 7.where 8.drunk 9.pump 10.carried 11.source 12.examined 13.polluted 14.defeatedHomework: Retell the text after class and preview its language points

  • 新人教版高中英语选修2Unit 1 Science and Scientists-Using langauge教学设计

    新人教版高中英语选修2Unit 1 Science and Scientists-Using langauge教学设计

    This happens because the dish soap molecules have a strong negative charge, and the milk molecules have a strong positive charge. Like magnets, these molecules are attracted to each other, and so they appear to move around on the plate, taking the food coloring with them, making it look like the colors are quickly moving to escape from the soap.Listening text:? Judy: Oh, I'm so sorry that you were ill and couldn't come with us on our field trip. How are you feeling now? Better?? Bill: Much better, thanks. But how was it?? Judy: Wonderful! I especially liked an area of the museum called Light Games.it was really cool. They had a hall of mirrors where I could see myself reflected thousands of times!? Bill: A hall of mirrors can be a lot of fun. What else did they have?? Judy: Well, they had an experiment where we looked at a blue screen for a while, and then suddenly we could see tiny bright lights moving around on it. You'll never guess what those bright lights were!? Bill: Come on, tell me!? Judy: They were our own blood cells. For some reason, our eyes play tricks on us when we look at a blue screen, and we can see our own blood cells moving around like little lights! But there was another thing I liked better. I stood in front of a white light, and it cast different shadows of me in every color of the rainbow!? Bill: Oh, I wish I had been there. Tell me more!? Judy: Well, they had another area for sound. They had a giant piano keyboard that you could use your feet to play. But then, instead of playing the sounds of a piano, it played the voices of classical singers! Then they had a giant dish, and when you spoke into it, it reflected the sound back and made it louder. You could use it to speak in a whisper to someone 17 meters away.? Bill: It all sounds so cool. I wish I could have gone with you? Judy: I know, but we can go together this weekend. I'd love to go there again!? Bill: That sounds like a great idea!

  • 初二学生国旗下讲话稿:构建和谐校园

    初二学生国旗下讲话稿:构建和谐校园

    我是初二7班xxx,今天我讲话的主题是“构建和谐校园”。和谐是事物存在的最佳状态,也是一切美好事物的共同特点。实现和谐,是古往今来人类孜孜以求的美好理想和愿望。而调动一切积极因素构建和谐文明的校园环境也将是一个永恒的主题。构建和谐校园需建立和谐的师生关系。师者,传道授业解惑也,是老师给了我们文化知识的启迪,使我们从无知到有知,从幼稚走向成熟。老师给了我们知识的雨露,我们要全身心的接受,珍惜老师的付出,尊重老师的劳动。师生互敬互爱,从而打造和谐的学习氛围。构建和谐校园需建立建立和谐的同学关系。关心帮助有困难的同学,让他们感受到和谐校园的温馨。

  • 大班科学教案:旋转的彩球(科学)

    大班科学教案:旋转的彩球(科学)

    2.幼儿操作材料:长铜丝、短铜丝若干,粗细不同的圆铅笔、吸管、小棒等若干,圆形彩纸片若干,浆糊、抹布,橡皮泥,别针。活动内容:1.演示彩球玩具,引起幼儿兴趣。⑴教师演示玩具,请幼儿观察现象。⑵介绍玩具的构造。①教师:这个玩具有几个部分组成的呢?②示范弹簧的制作方法。2.请幼儿来制作玩具。⑴幼儿尝试自己制作旋转彩球玩具,教师巡回指导。⑵幼儿玩一玩自己制作的玩具。⑶交流制作经验。教师:①你是怎样做旋转彩球的?你的彩球能滑下来吗?怎样滑下来的?②师生共同小结。3.讨论:为什么彩球下滑转动快慢不一样。⑴比一比:谁的小球转得快?⑵想一想:为什么彩球转的快慢不一样呢?弹簧粗的转得快还是弹簧细的转得快?⑶小结:原来有的小朋友他绕的弹簧比较细,所以彩球转的快;有的小朋友绕的弹簧粗,所以彩球转的慢些。4.怎样使彩球转得快些。⑴猜一猜:不改变弹簧的粗细能不能让彩球转得快些?⑵幼儿尝试,教师做必要的提醒和指导。⑶小结:活动延伸:1.将材料投放在科学角,供幼儿平时操作。提供橡皮泥,鼓励幼儿尝试将纸球换成橡皮泥,改变两边橡皮泥的重量,观察其下滑速度的变化。2.在日常生活中引导幼儿观察重力与速度变化的现象。活动建议:1.长短铜丝应分别为两种规格,利于幼儿对比。

  • 大班科学教案:科学幻想故事

    大班科学教案:科学幻想故事

    过程 活动(一)欣赏科幻故事 1、由教师讲科幻故事。如“机器人奇奇”、“我的梦”、“到月球上去”、“海底旅游”等。 2、组织幼儿观看科幻录像片。如“机器猫”、“可赛号”、“变形金刚”等。 3、让幼儿自由阅读关于科学知识或幻想故事的图书。 活动(二)创编科幻故事 1、续编故事:让幼儿根据自己知道的科幻故事中的人物、背景、情节继续编故事。

  • 大班科学教案:化学游戏:找动物

    大班科学教案:化学游戏:找动物

    活动目标: 1.运用化学小魔术,充分激发幼儿的探究兴趣和积极尝试的欲望。 2.通过游戏活动,使幼儿了解酚酞溶液遇到另一种药水(稀碱溶液)会变成红色的现象,真切地感受到大自然的奇妙。 活动准备: 1.稀碱溶液、酚酞溶液、清水。 2.毛笔、杯子、双面胶; 3.水彩纸数张,教师示范画一张(事先均用彩笔画好树林、房屋等,用毛笔蘸取稀碱溶液画狐狸、老虎、大灰狼隐藏在树林中,晾干),白纸数张(事先用稀碱溶液画上小动物,晾干)。 活动过程: 一、教师做化学小魔术,激发幼儿兴趣。 1.教师出示一张已用稀碱画了小动物的白纸,问:“纸上有什么?”“有小动物隐身在白纸里,可以用什么办法把它请出来?”(幼儿自由畅想)。 2.教师演示: 提问:“老师用什么方法把毛毛虫请了出来?” 3.引导幼儿对水和酚酞进行比较(用试一试、看一看、闻一闻的方法) 教师小结:刚才老师请毛毛虫用的不是水,而是一杯神奇的药水,它的名字叫酚酞。

  • 大班科学教案:冻冰花(科学、艺术)

    大班科学教案:冻冰花(科学、艺术)

    2.引导幼儿感受冬天气温的变化,探索水的形态变化与气温的关系。 3.引导幼儿学习动手制作冰花、欣赏冰花,培养幼儿的审美能力。活动准备: 1.矿泉水瓶、清水、细绳、花瓣、树叶、小石头等。 2.温度计若干。活动过程: 1.在天气不是很冷的时候布置幼儿回家制作冰花后,请带来冰花的幼儿讲讲怎样做的冰花,请没带冰花的幼儿讲讲为什么没带。让幼儿知道天气不太冷的时候室外是冻不出冰花的。 “你的冰花在哪里做成的?”(冰箱里) “你为什么不放在院子里或房间里冻冰花”? “为什么院子里、房间里冻不成冰花”?

  • 关于如何增强责任意识学习心得体会参考范文

    关于如何增强责任意识学习心得体会参考范文

    敬业也不例外,“爱岗敬业”就是教师职业的基本要求。所谓“爱岗”就是热爱教育,热爱学生,热爱本职工作。所谓“敬业”就是忠于职守,尽职尽责,教书育人。教师的责任心是职业情感的基础。当一个教师把爱岗敬业确认为自己的道德原则时,他就会产生对职业自豪感、荣誉感和幸福感。这些积极的情感又会使教师对工作表现出积极、热忱和全力以赴的态度。责任心又是教师自觉地依法执教、热爱学生、严谨治学、团结协作、尊重家长、廉洁从教、为人师表的基础和首要条件。许多实例表明,缺乏责任心的教师不可能严谨治学,工作也不可能有积极性。所以在教师职业道德修养中,增强责任心是至关重要的问题。世界各国的教师职业道德规范,尽管由于民族差异,文化背景不同,但是各国都把爱岗敬业、忠于职守作为对教师的基本要求。

  • 防灾减灾日国旗下讲话稿:增强防灾减灾意识,学会自我保护

    防灾减灾日国旗下讲话稿:增强防灾减灾意识,学会自我保护

    林宇轩尊敬的老师、亲爱的同学们:大家好!今天我国旗下讲话的主题是“增强防灾减灾意识,学会自我保护”。今天是5月12日,也是我国的第8个防灾减灾日。今年的主题是:城镇化与减灾。在XX年3月2日,经国务院批准,把每年的5月12日定为全国的防灾减灾日。这既体现了国家对防灾减灾工作的高度重视,也是构建和谐社会的重要举措。通过设立“防灾减灾日”,定期举办全国性的防灾减灾宣传教育活动,有利于进一步唤起社会各界对防灾减灾工作的高度关注,增强全社会防灾减灾意识,普及推广全民防灾减灾知识和避灾自救技能,提高各级综合减灾能力,最大限度地减轻自然灾害的损失。虽然灾难看似离我们很遥远,但是如果没有树立起正确的安全防范意识,即使在我们的校园中,也会容易出现安全事故。举一个简单的例子,篮球可能是男同学们最喜爱的课余活动之一,然而就是在这一片不大的场地中,倘若轻视了自我保护,也会给自己带来惨痛的教训。很可能就在一次碰撞中,因为没有做好自我保护,就因此受到伤害,出现骨折等现象。因此,上体育课、体锻课前要做好准备活动,运动时注意不要剧烈碰撞,以免撞伤或摔伤;活动时,要在体育老师的正确指导下,使用体育器材或参加运动,课余时间活动要注意安全。

  • 第九周国旗下讲话稿:增强安全意识,学会自我保护

    第九周国旗下讲话稿:增强安全意识,学会自我保护

    同学们,老师们:大家早上好!今天我国旗下讲话的题目是《增强安全意识,学会自我保护》。同学们,安全无小事,事事须小心。增强安全意识,学会自我保护,是杜绝安全事故发生的最好法宝。然而,我们许多同学思想上、心理上和行为上都忽视了安全工作的重要性。据中国青少年研究中心的全国性大型调查发现,安全事故已经成为14岁以下少年儿童的第一死因,并有逐年增加的趋势;全国每年约有1.6万名中小学生非正常死亡,平均每天有40多人,就是说几乎每天有一个班的学生从我们这个世界“消失”!一个个触目惊心、血泪交织的悲剧叫人扼腕叹息、心有余悸,更对我们敲响了安全的警钟。安全关系着我们的生命与健康,切不可麻痹大意。因此,我们一定要增强安全防范意识,提高自我保护能力。首先,要充分认识安全的重要性,树立高度的安全意识。在对待安全问题的态度上,有一种思想特别要不得!那就是认为提高安全意识,实施安全行为,是胆小怕事;而胆大妄为,敢于冒险是勇敢!这种思想是完全错误的!存在这种思想的人往往好出风头,不听教导,也最容易发生安全事故。比如,在公路上飞车的大多会发生交通事故,手持鞭炮燃放的大多会被炸伤,喜欢追逐打闹的大多会发生碰撞事故,喜欢舞刀弄枪的往往会造成伤害……

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