试讲-大学英语教案-第1册第9单元教案
Book1
Unit9 Is there life on Earth?
Teaching Hours: 50 minutes
Students’ Level:freshmen of non-English majors in the 1st semester.
Teaching Objectives:
1.About the warming-up, get students know something about environment
pollution and protection.
2.About background knowledge, get students know some information about the
eight planets in solar system especially the Venus and the Earth.
3.About the global reading, students are supposed to have a good understanding of
the text, not only capable of finding out answers about comprehension questions but also able to summarize the main idea of the text.
4.About the classroom presentation, students are to practice their spoken English
through a given topic.
Key Teaching Points:
1. Bad effects of environment pollution and some ways of environment protection.
2. The development, structure and the main idea of the story.
Teaching Procedures:
Part I Warm-up Questions (10mins)
Ask students some questions as a lead-in to the text.
1. Women used to be referred to as the weaker sex. What do you think?
2. Do you think there is real equality between the sexes in present-day China?
3. Who is the heroine you admire most? Give your reasons.
Part II Background information (10mins)
1. Eight Planets in the Solar System
They are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto.
2. Venus
Venus is the second planet in distance from the sun and nearest to the Earth of all the planets in the solar system. Except for the sun and the moon, Venus is the brightest object in the sky. The planet is called “the morning star” when it appears in the east in the sunrise, and “the evening star” when it is in the west at sunset.
The surface temperature of Venus averages about 475 degrees centigrade and its atmosphere is about 95% carbon dioxide (CO2). Oxygen is rare there. The high temperature and near absence of oxygen on Venus make it unlikely that life as we know it could exist there.
It is satirically interesting that Art Buchwald has chosen the planet Venus as the setting for his story. His satire is most deeply felt when he has the Venusian professor say that if the Venusians can learn to breathe in an Earth atmosphere, then they can live anywhere else.
3. Earth
The earth is the third planet in the system and the moon is always circling around it. It looks like a big blue marble; from high above the Earth and from the moon, the planet gleams and shines. It’s really a beautiful planet, but her beauty is not only because of the view, but also her vitality.
The earth, the planet we human have been living on for thousands of years, is the only planet whose environment is suitable for creatures in the solar system. The earth is the cradle of life. It’s high time that we took actions to protect our planet. Part Three Global Reading (20mins)
1. Introductory Remarks
This is a science fiction story, isn’t it? The title “Is there life on Earth?” produces a strong air of humor, arousing readers’interest immediately. Surely, you will enjoy your reading.
1) Questions about the Text
① What caused the excitement on the planet Venus?
For the first time Venusian Scientists managed to land a satellite on the planet Earth, and it has been sending back signals as well as photographs ever since.
②What led the Venusian scientists to believe that there’s no life on Earth?
For one thing, Earth’s surface in the area of Manhattan is composed of solid concrete and nothing can grow there. For another, the atmosphere is filled with carbon monoxide and other deadly gases and nobody could possibly breathe this air and survive.”
③Why does professor Zog think it impossible to land a flying saucer on Earth without its being smashed?
There’re metal particles that move along certain paths. They emit gases, make noise and keep crashing into each other. There are so many of these paths and so many metal particles that it is impossible to land a flying saucer without being smashed by one.
2) Structure of the Text
While global reading, students should be able to work out the structure of the text. Part I (Para 1-3)
A press conference was held at the Venus Institute of Technology.
Part II (Para 4-15)
Reasons why there’s no life on Earth
P art III (Para 9-10)
Decisions that they would proceed their flying saucer program.
3) The Main Idea of the Story
The author has meant this essay to appear as a piece of science fiction, a story taking place on the planet Venus. It is written from the point of view of “Venusians”who are exploring the possibility of life on Earth. On a press conference held at the Venus Institute of technology, professor Zog declared that there’s no life on Earth because of various problems found on Earth such as too much solid concrete, deadly atmosphere, and polluted water. In this way, the author implies that pollution on our earth is very severe, and it’s high time we did something to stop it.
Part Four Classroom presentation (10 mins)
One or two students are expected to give a classroom presentation on the given topic of “environment problems of today's China (such as the dust storm in Aksu Region).”
Example:
Dust storms can carry large amounts of dust, which can sweep across whole Aksu Region in April and May.
Dust storms have also been shown to increase the spread of disease across the world. Virus spores in the ground are blown into the atmosphere by the storms with the minute particles and interact with urban air pollution. In addition, dust storms also reduce visibility affecting aircraft and road transportation. Many people are hurt during dust storms by automobile accident.
The effects of dust storms can be reduced by using environmental control strategies. Take appropriate control of dust raising factors such as increasing the vegetation cover where possible. It helps in stabilization of the soil, sand dunes and form windbreaks
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人教版九年级化学全一册第九单元集体备课教案教学反思
第九单元溶液 课题1 溶液的形成 本课题包含三部分内容。 第一部分通过学生的探究，使学生在客观上认识溶液的特征，从微观上认识溶液是溶质粒子分散到溶剂中形成的均一、稳定的体系，在此基础上使学生建立一个有关溶液的较为科学的概念，进而认识溶质、溶剂及其关系。 第二部分介绍溶解时的吸热或放热现象，通过学生思考，自己设计实验方案，探究物质在溶解过程中的吸热或放热现象。 第三部分通过实验简单介绍了乳化现象，以激发学生学习化学的兴趣。 本课题内容容易引起学生的学习兴趣，但从微观角度理解溶液的形成有一定的难度，理解乳化现象也有一定难度，故在教学中充分利用探究实验，并联系生活实际，使学生对乳化现象有较直观的了解。 第1课时溶液的概念、特征和组成 【教学目标】 1.知识与技能 （1）认识溶解现象，知道溶液、溶剂、溶质的概念。 （2）了解溶液在生产和生活中的重要作用。 2.过程与方法 （1）学习科学探究和科学实验的方法，观察、记录、分析实验现象。 （2）学习采用对比的方法认识对相同问题的不同解决方法。 3.情感态度与价值观 （1）增强学习化学的兴趣。 （2）培养勇于探索的精神。 【教学重点】 建立溶液的概念，认识溶液、溶质、溶剂三者的关系。 【教学难点】 从微观上认识溶液。
【教具准备】 NaCl溶液、CnS0 4溶液、CuC1 2 溶液、KMnO 4 溶液、FeCl 3 溶液、NaCl固体、糖、 CuS0 4 晶体、水、玻璃棒、100mL烧杯(若干）、药匙、碘、汽油、高锰酸钾固体、酒精、试管(若干)等。 【导入新课】 展示已配制好的五种溶液:NaC1、CuS0 4、CnCl 2 、KMn0 4 、FeCl 3 。让学生观察，并 设疑:这些漂亮的液体让你们想到了什么？ 【学生活动】 学生各抒己见，发表自己的见解。 【分析小结】 其实，我们看到的液体都是溶液。我们今天就要来学习第一课题──溶液的形成，学了本课题后同学们的猜想与假设自然有了答案。 【活动与探究1】 几种固体物质溶于水（请同学依据实验填写下表）。 药品：NaCl、糖、CuS0 4 晶体、水 仪器:玻璃棒、100mL烧杯三个、药匙 【交流现象】 请一组同学解释实验过程及现象:食盐、糖、硫酸铜晶体都溶于水中且硫酸铜晶体溶解后的液体是蓝色的。 【得出结论】 三种物质都溶于水，得到混合物颜色有差异。 【提出问题】 为什么物质会消失在水中？原因是什么？对此你有何猜想？小组讨论一下看是否能形成共识。 【分析小结】 是固体小颗粒分散到水中，形成一种混合物，这种混合物就是溶液。 【引导观察】 溶液的颜色是否均一？溶液中是否有固体析出？
大学英语第一册第一课
UNIT 1 Want to know how to improve your grades without having to spend more time studying? Sounds too good to be true? Well, read on... How to Improve Y our Study Habits Perhaps you are an average student with average intelligence. Y ou do well enough in school, but you probably think you will never be a top student. This is not necessarily the case, however. Y ou can receive better grades if you want to. Y es, even students of average intelligence can be top students without additional work. Here's how: 1. Plan your time carefully. Make a list of your weekly tasks. Then make a schedule or chart of your time. Fill in committed（指定的时间）time such as eating, sleeping, meetings, classes, etc. Then decide on good, regular times for studying. Be sure to set aside enough time to complete your normal reading and work assignments. Of course, studying shouldn't occupy all of the free time on the schedule. It's important to set aside time for relaxation, hobbies, and entertainment as well. This weekly schedule may not solve all of your problems, but it will make you more aware of how you spend your time. Furthermore, it will enable you to plan your activities so that you have adequate time for both work and play. Plan your time carefully: topic sentence Supporting sentences 展开句 Fill in/out :write in; complete sth by putting whatever is needed Listen carefully and fill in the numbers you’ve heard from the tape. decide on: choose from two or more possibilities or make a decision about I’ve decided on leaving for New Y ork the day after tomorrow. Be sure (to do sth): not fail (to do sth) Be sure to leave adequate time for play. Be sure to write to us as soon as you get there. Be sure not to be late again. set aside：keep or save for special use or purpose Why don’t you set aside some money so that you can use it when you’re in need? as well: also , too This book tells Lu Hsun’s writings, and his life as well. With the changes in their social role, women’s position in the family has been improved as well. Be/ become aware of: know sth; know(what is happening) Are you aware of the importance of learning a foreign language? 2. Find a good place to study. Choose one place for your study area. It may be a desk or a chair at home or in the school library, but it should be comfortable, and it should not have distractions. When you begin to work, you should be able to concentrate on the subject. concentrate on/ upon : give all one’s attention or efforts, etc. to I can’t concentrate on my studies, for I’m homesick.思乡 Airsick晕飞机 seasick 晕船 3. Skim before you read. This means looking over a passage quickly before you begin to read it more carefully. As you preview the material, you get some idea of the content and how it is organized. Later when you begin to read you will recognize less important material and you may skip some of these portions. Skimming helps double your reading speed and improves your comprehension as well. Look over: examine; inspect I looked hurriedly over the apples in the basket and took one that looked good. They looked over several kinds of new bikes before making up their minds to buy. My sister is busy looking over her mail. 4. Make good use of your time in class. Listening to what the teacher says in class means less work later. Sit where you can see and hear well. Take notes to help you remember what the teacher says.
万能试讲教案大学科试讲万能
语文学科 一、教学目标 （一）小学 【知识与技能】 学生会认____________等______个生字，会写________等______个生字。【过程与方法】 通过__________的方法，学会文章_________的特色。 【情感态度价值观】 学生通过________内容，理解并认识_____________。 （二）初中 【知识与技能】 学生理解____________等生字含义，有感情朗读课文。 【过程与方法】 通过__________的方法，领会文章_________的特色。 【情感态度价值观】 学生通过________内容，培养_____________的价值观。 （三）高中 【知识与技能】 学生理解_文本___________内涵，有感情朗读课文。 【过程与方法】 通过__________的方法，领会文章_________的特色。 【情感态度价值观】 学生通过________内容，培养_____________的价值观。
二、教学重难点 【重点】 学生知道_______；学生锻炼______的能力。【难点】 学生培养________的行为习惯和观念。 三、教学方法 讲授法、小组讨论法、情景教学法 四、教学过程 环节一：导入 播放视频________。 提问学生：____________，引出本课内容。 环节二：新授 活动一整体感知 学生默读课文并思考______问题。 学生回答，其他同学补充，教师点评。 再次引导学生齐读课文，加深对_____问题理解 活动二深入研读 教师多媒体播放视频：__________，并提出问题：问题1：________。 问题2：________。 小组讨论，老师针对点评，并作出评价。 教师总结：_________。 环节三：巩固提升
青岛版一年级数学第八九单元集体备课教案
《我换牙了》教学设计淄川经济开发区西山联校许丽萍 教学内容： 青岛版小学数学一年级上册第八单元信息窗 教学目标： 1.经历并初步体验数据收集、整理、描述的过程，会用分类数数的 方法将数据整理成简单的条形统计图，统计表； 2.初步感受统计的思想和方法，感受统计和生活的联系，从而体会 统计的意义和作用。 3.通过小组合作，培养学生合作，交流的能力。 教学重点、难点： 掌握统计整理的方法，能够根据统计图中的数据，进行简单分 析，并能对调查的事件作出合理的推断。 课时：2课时 教学准备：学生课间活动录像片段，课件，统计图、统计表、课本 第一课时新授 教学过程： 课前预习：在家里和妈妈或者爸爸一起数一数自己换过几颗牙 （一）、导入： 观看游戏录相，调查换牙情况。 师生观看录相。
录相：学生在操场上做各种游戏，笑得开心，画面最后定在一个缺 牙孩子的笑脸上。（配音：下课了，孩子们都高兴来到了操场上，有的在跳绳，有的在转呼啦圈，还有的在……真有意思！） 师：他们玩得真高兴！刚才看录相时，我发现有几个小朋友在笑， 你在笑什么 生：他的牙掉了，留下了一个空空的洞。 师：其实，这没什么好笑的，因为每个小朋友都要掉牙，小朋友 们，你们知道吗小朋友的牙齿叫做乳牙，一共有20颗，小朋友到6岁的时候，乳牙就要开始掉落，然后又会重新长出新的牙齿，这个 阶段叫做换牙。小朋友们，你们换牙了吗开始换牙的孩子举起手 来！ 生纷纷举手示意自己换过牙。 师：我知道我们的小朋友很多都已经开始换牙了，课前我也让同学 们和家长一起数了自己换牙的数目，那么，你换了几颗牙 生：3颗、2颗、4颗…… 师：同学们有的换2颗牙，有的换3颗牙，还有的换的更多，如果我想了解咱们全班同学换2颗牙的有多少人，换3颗4颗的分别有多少人，有什么好的办法吗先动脑思考，再在小组内讨论一下。 生：“可以举手”、“让所有掉两颗牙的站在一起”、“把自己换 了几颗牙写在纸上”……
最新人教版四年级数学上册第九单元 集体备课教案
◎教学笔记 9总复习 总复习内容主要涉及本册教科书中四个主要内容,分别是大数的认识、乘法和除法的运算、空间与图形、统计与数学广角。通过总复习，学生对本学期所学的知识进行整理和复习，进一步巩固数的概念，提高计算能力和解决问题的能力，发展空间观念、统计观念，获得自身数学能力提高的成功体验，全面达到本学期的教学目标。正因为总复习的目的就是对本学期所学知识进行归纳整理，使之条理化、系统化，所以教学中要把握两个关键点：一是查漏补缺，进一步巩固深化数学知识和技能；二是沟通联系，构建知识体系，深化对知识的理解，提高学生综合运用知识解决实际问题的能力。 本册教科书四大版块的内容学生基本已经掌握，欠缺的是厘清知识脉络、查漏补缺的能力以及科学有效的复习方法。所以复习的重点应该放在引导学生复习巩固的基础上，让学生初步形成数感、符号意识、空间观念和数据分析观念，提高运算能力及解决问题的能力，并逐步掌握复习方法，形成良好的学习习惯。 1.抓住重难点知识，查漏补缺是复习课的一项主要内容，辨析含糊不清的认知，巩固强化薄弱环节则是复习课的重要任务。例如，复习“大数的认识”的一项重点内容就是大数的读写法，一方面抓住其重点内容“中间、末尾有0的数的读写法”进行复习，另一方面还要关注学生的思维易受知识负迁移的影响而产生思维障碍点。 2.复习课要加强各部分内容之间的联系，完善知识结构，建构知识网络。例如，复习“图形与几何”时，结合本册教科书知识较为零散、概念多的特点，教师要引导学生进行适当的系统整理，在构建知识网络的过程中，使学生更加直观、清晰地了解图形间的联系和区别，明确概念，内化理解。 3.复习时，既要加强知识间的横向联系，更要加强知识间的纵向联系。例如，复习“乘法和除法的运算”时，可以把因数和积的关系、商变化的规律与乘、除法口算结合起来复习，使学生进一步理解口算算理，并能灵活运用这些规律进行口算，使口算更准确、迅速。如学生前面学习60÷20时，对于为什么可以利用6÷2进行口算的原理不是很清楚，学习商不变性质之后，就可以说清其中的道理了。复习笔算乘、除法时还可进一步阐述乘、除法的互逆关系，在解决问题的过程中，通过让学生学会分析数量关系，知道何时用乘法，何时用除法等。