Listening and Speaking introduces the topic of “talking about how to become an astronaut”. This period is aimed to inform students some details about the requirements of being an astronaut. Students can be motivated and inspired by the astronauts. Teachers ought to encourage students to learn from them and let them aim high and dream big.Listening and Talking introduces the theme of "talk about life in space". This part also informs students more details about life in space and can inspire students to be curious about this job. 1. Guide students to listen for numbers concerning dates, years and ages etc2. Cultivate students' ability to talk about how to become an astronaut and life in space ; 3. Instruct students to use functional sentences of the dialogue such as “ first of all, I am not sure, so what might be .. I guess.. I wonder…I am curious…)appropriately.1. Guide students to understand the content of listening texts in terms of the whole and key details; 2. Cultivate students' ability to guess the meaning of words in listening; discuss with their peers how to become a qualified astronaut and describe the life in space.Part 1: Listening and SpeakingStep 1: Lead inPredictionThe teacher can ask students to predict what the listening text is about by looking at the pictures.About how to become an astronaut./the requirements of an astronautStep 2: Then, play the radio which is about an interview a. And after finishing listening for the first time, the students need to solve the following tasks.
Q4: What is the function of the International exploration ?Having astronauts from different countries on boardQ5: What can you learn from Para 4 ?China has made great achievements in exploring spaceQ6: What is the attitude to the space exploration ?SupportiveStep 6 Post reading---RetellPeople have always wanted to learn more about space. Before the mid-20th century, most people felt (1)_________ (travel) into space was an impossible dream. However, (2)____ the help of scientists, peoplesucceeded in realizing their dream (3) _________ (explore) space. On 4 October 1957, the Sputnik 1 satellite (4) ____________(launch) by the USSR. (5) ________________ scientists try to make sure nothing goes wrong, accidents can still happen. These disasters made everyone(6)___________(disappoint), but people still believe in the importance of (7) ________(carry) on space exploration. In 2003, China became the third country to (8)_____________ (independent) send humans into space. Then Shenzhou 6 and 7 completed (9)____ second manned orbit and the first Chinese spacewalk. In spite of the difficulties, scientists hope future (10)__________ (discovery) will not only enable us to understand the universe but also help us survive well into the future.Answers: 1. travelling 2. with 3. to explore 4. was launched 5. Although6. disappointed 7. carrying 8. independently 9. a 10. discoveriesStep 6 Post reading---Critical thinkingQ1: What do you think of the space exploration ? I think it is beneficial to us. Through further study of space, people will make full use of it in the future, such as the space experiments by Wang Yaping in Tian Gong 1.Q2: If you are determined to be an astronaut, what should you prepare at present ?First of all, I should study hard to get a related college degree. Besides, I must keep mental and physical healthy.Step 7. HomeworkTry to summarize the structure of the article by a mind map.
⑦在我看来, 探索太空是值得的。As far as I am concerned, it is worthwhile to explore the space.Step 10 Writing---draftRecently, students in our class have had heated a discussion on whether space is worth exploring. Students hold different ideas about it.30% of us think space exploration is not worthwhile. They think space is too far away from us and our daily life and is a waste of money. And the money spent on space exploration can be used to solve the earth’s problems such as starvation and pollution.On the other hand,70% think space is worth exploring because we have benefited a lot from it,such as using satellites for communication and weather forecast. What’s more,with further space research,we may solve the population problem by moving to other planets one day. Also,space research will enable us to find new sources to solve the problem of energy shortages on the earth.As far as I am concerned, it is worthwhile to explore the space. Not only can it promote the development of society but also enrich our life. Step 11 Pair workExchange drafts with a partner. Use this checklist to help your partner revise his/her draft.1.Does the writer explain why he/she changed/wanted to change?2.Does the writer tell how the changes have improved or will improve his/her life?3.Is the text well-organised?4.Does the writer use words and expressions to show similarities and differences?5.Are there any grammar or spelling errors?6.Does the writer use correct punctuation?
The theme of this unit focuses on “space exploration.” Students will learn about the training and experience needed to become an astronaut. The text is mainly about the development of space exploration. On the one hand, the text helps students to have a good understanding about the great feats humans have achieved, on the other hand, they will further understand the contributions that we Chinese have achieved, and feel confident and proud about our homeland and strengthen their love for our country. The teacher should instruct students to aim high and study harder to make great progress in the space career if possible.1. Read about the development and value of space exploration.2. Explore the mysteries of the universe and the achievements in space exploration.3. Skillfully use the vocabulary of this text to cultivate self-study ability 4. Develop cooperative learning ability through discussion.1. Enable the Ss to talk about the development and value of space exploration.2. Guide the Ss to summarize the main idea of each paragraph as well as the main idea of the text.3. Help Ss comprehend the main reasons for space exploration. Multi-media, textbook, notebooks.Step 1: Warming up and predictionLook at the title and the pictures of the text and predict what the text will be about?2. What are the main reasons for space exploration?
The theme of the section is “Describe space facts and efforts to explore space”. Infinitives are one of non-finite verbs, as the subjects, objects, predicative, attributes and adverbials. This unit is about space exploration, which is a significant scientific activity, so every scientific activity has strong planning. Therefore, using the infinitives to show its purpose, explanations or restrictions is the best choice.1. Learn the structure, functions and features of infinitives.2. Learn to summarize some rules about infinitives to show purpose and modify.3. Learn to use infinitives in oral and writing English. 1. Learn the structure, functions and features of infinitives.2. Learn to summarize some rules about infinitives to show purpose and modify.3. Learn to use use infinitives in oral and writing English.Step 1 Lead in---Pair workLook at the following sentences and focus on the italicized infinitives. In pairs, discuss their functions. 1. I trained for a long time to fly airplanes as a fighter pilot..(作目的状语)2. As we all know, an astronaut needs to be healthy and calm in order to work in space..(作目的状语)3. First of all, you must be intelligent enough to get a related college degree..(作目的状语)4. Some scientist were determined to help humans realise their dream to explore space..(作定语)5. On 12 April 1961, Yuri Gagarin became the first person in the world to go into space..(作定语)Summary:1. 不定式的结构:to+do原形。2. 分析上面的句子,我们知道在描述太空探索时,动词不定式不仅可以用来表目的,还可以用来作定语,表修饰。
The themes of this part are “Talk about how to become an astronaut” and “Talk about life in space”. As Neil Armstrong said “Mystery creates wonder and wonder is the basis of man’s desire to understand. Space is difficult for human to reach, therefore, humans are full of wonders about it. However, if wanting to achieve the dream of reaching the Moon, some of our human should work hard to be an astronaut at first. Part A(Talk about how to become an astronaut) is a radio interview in a radio studio, where the host asked the Chinese astronauts about his story how to become an astronaut. Yang Liwei told his dreamed to be an astronaut since childhood. Then he worked hard to get into college at 22. The next 10 years, he gradually became an experienced pilot. At the same time, to be an astronaut, he had to study hard English, science and astronomy and trained hard to keep in good physical and mental health and to practise using space equipment. Part B (Talk about life in space) is also an interview with the astronaut Brown, who is back on the earth. The host Max asked about his space life, such as his emotion about going back the earth, the eating, shower, brushing, hobbies and his work. Part A and Part B are interviews. So expressing curiosity about the guests’ past life is a communicative skill, which students should be guided to learn.1. Students can get detailed information about how Yang Liwei became an astronaut and Max’s space life.2. Students learn to proper listening strategy to get detailed information---listening for numbers and taking notes.3. Students can learn related sentences or phrases to express their curiosity like “ I wish to know...” “I’d love to know...”4. Students can learn more about the space and astronauts, even be interested in working hard to be an astronaut
反思感悟用基底表示空间向量的解题策略1.空间中,任一向量都可以用一个基底表示,且只要基底确定,则表示形式是唯一的.2.用基底表示空间向量时,一般要结合图形,运用向量加法、减法的平行四边形法则、三角形法则,以及数乘向量的运算法则,逐步向基向量过渡,直至全部用基向量表示.3.在空间几何体中选择基底时,通常选取公共起点最集中的向量或关系最明确的向量作为基底,例如,在正方体、长方体、平行六面体、四面体中,一般选用从同一顶点出发的三条棱所对应的向量作为基底.例2.在棱长为2的正方体ABCD-A1B1C1D1中,E,F分别是DD1,BD的中点,点G在棱CD上,且CG=1/3 CD(1)证明:EF⊥B1C;(2)求EF与C1G所成角的余弦值.思路分析选择一个空间基底,将(EF) ?,(B_1 C) ?,(C_1 G) ?用基向量表示.(1)证明(EF) ?·(B_1 C) ?=0即可;(2)求(EF) ?与(C_1 G) ?夹角的余弦值即可.(1)证明:设(DA) ?=i,(DC) ?=j,(DD_1 ) ?=k,则{i,j,k}构成空间的一个正交基底.
人教版新课标教材必修一的“表达交流”部分,有一个专题是“人性的光辉——写人要凸显个性”。其中的“写法借鉴”部分列举了两则人物描写实例,并归纳出人物描写的几个要点。其训练的思路和方法是很明显的,但所列举的人物描写的实例却不够典型。而必修一第三单元正好是学习写人记事散文,其中的两篇自读课文《记梁任公先生的一次演讲》《金岳霖先生》又是写人记事非常典型的文章,故而我尝试将这两篇文章作为实例和。写人要凸显个性。写作指导结合起来教学。这样设计还有一个目的,那就是解决课程改革中教学内容多而课时紧张的矛盾,提高课堂教学效率。师:今天,我们一起来学习“写人要凸显个性”。这两堂课分四个步骤来完成:一、先学习教材中关于写人方法的介绍,约15分钟;二、快速阅读第三单元的《记梁任公先生的一次演讲》和《金岳霖先生》两篇文章,具体感受其写人的方法,约30分钟;
第11段很短,只点出了这是“在妇女身上搞不育试验的地方”,但在最末又加了一句“否则他会羞红了脸的”,这是为什么?那肯定是一个极为肮脏,极为残酷的地方。据资料记载:当时的希特勒制定一项令所有被征服或占领国家的民族充当奴隶并且逐渐消亡的隐密性种族灭绝计划——高效率、大规模的强制绝育。为此,数以百计的纳粹医生、教授、专家甚至护士,在行政管理专家的通力合作下,相继提出了几十种绝育方法,十余种实施方案,并且在奥斯维辛、拉芬斯布吕克、布亨瓦尔特、达豪等十多个大型集中营内对数以万计的犹太、吉普赛囚犯、因从事抵抗运动而被捕的政治犯和男女战俘进行了残酷的手术试验,造成他们大量死亡或者终身残疾、终身不育。这样残酷的毫无人性的手段,任谁也不愿看到。
我选取这两组例子的目的就是要学生在阅读对比中明白“横看成岭侧成峰。远近高低各不同”的道理。要让学生明白:看同一景物,观者所处的方位不同,角度不同,收到的效果也不同。最后教师明确:要写出景物的特征,首先得仔细观察,并注意观察点的变化。然后追问:抓住景物的特征还有哪些要求?让学生带着问题再来看多媒体出示的夜晚荷塘图和泰山松的有关图片,先让学生尝试描写,然后再出示《荷塘月色》和《雨中登泰山》中和图片有关的两段描写。这两段分别是:“曲曲折折的荷塘上面,弥望的是田田的叶子……仿佛远处高楼上渺茫的歌声似的。”(《荷塘月色》),“但是把人的心灵带到一种崇高境界的,是那些“吸翠霞而夭矫的松树……都让你觉得他们是泰山的天然主人,好象少了谁都不应该似的。”(《雨中登泰山》)。
二、说学生本届高一学生经过了三年初中课改,在心理上,他们渴望表现的欲望和自主探究的欲望比较强烈,对有兴趣的知识表现出高度地热情,并具有一定的团结协作能力,但还是应该正视一个并不乐观的现实——在写作方面,学生知识还停留在简单的记叙及表达方式综合运用上,至于巧妙构思、谋篇布局很是空白。即便已经经过高中一个学期的学习,但还是有大部分学生依然基础较为薄弱,甚至出现不知从何下笔的现象。三、说教法与学法“老师搭台,学生唱戏”1、教法:本课将安排两课时(一课时学习一课时练笔),采用 PPT 多媒体课件教学,尝试用角色扮演法、图片展示法和多媒体教学等方法,教学中应该重视学生的参与性和探究性。2、学法:学生应该充分利用多角度创设的学习情境来激发自身学习的兴趣和热情,分组讨论,小组互助等形式让学生积极自主参与、进行问题探究学习。理论依据:建构主义理论“学生是学习的中心”的阐释,教师应该做学生主动建构意义的帮助者、促进者。
当代社会生活的变化比以往任何时代都要快。语言尤其是词汇记录了这些发展变化,因而也涌现了大量的新词新语。据统计,近几年每年大约要出现1000个左右的新词新语,而字典、词典的多次修订、增补就反映了这种情况。但相对来说,也有一些流行语又逐渐受到冷遇,甚至退隐。为了更好的对新词新语与流行文化作一番检视与探究,那让我们考察一下它们是怎么产生的吧?老师先给同学们列举四种途径:大屏幕3。同学们能再举出以上途径的一些例子吗?老师列举(4)其实不只这些,那还有哪些途径呢?找同学说并举例。说的非常好,请同学们看老师的例子,总结(5)。从新词新语的产生途径可以看出,这些鲜活得像画一样的新词就是这个时代跳动的血小板,它涉及当代社会的重大事件、现象与时弊,以及人们日常生活的各个层面如人生意义、生活方式、爱情、友情、就业、消费、时尚等,时代性强,传播面广,反映着当代社会时局与人们文化心态的变化。
师:“两开”是什么意思啊?注解里是怎么说的?第二次开,也就说他在这个地方已经待了两年了,这里是他回家的路途中,是不是?路途中他停留了两年时间。好的,你先请坐。你觉得残菊不能两开,在理解上好像存在一些误差。赵勇:因为菊花古往今来代表着对家乡的思念。师:菊花代表对家乡的思念?(下面学生齐笑)这种说法牵强了些,菊花在古代象征着高洁,梅兰竹菊是四君子嘛。赵勇:写这首诗时,他已经打算回故乡了,所以不应该写“残菊”,写“残菊”的话……师:事实上,他回不了故乡。好的,请坐。再想想,“残菊”意味着什么?破败。“丛菊”呢?茂盛。那这里说“两开他日泪”,“两开”是什么意思?开了两了次了,这说明他在这里已经待了两年了。那“他日泪”又是什么意思?赵勇:应该是他看到这里的菊花开得这么茂盛,就想到了故乡的菊花也是开的茂盛的时候。如果是“残菊”的话,那故乡的菊也会开得很残败。(下面学生齐笑)
1)他们在初中的生物学学习中已具备了一定的关于光合作用的基础知识,也做过“绿叶在光下制造淀粉”这个实验。2)他们具备物质转变和能量变化等相关的化学知识。3)在前面的《降低化学反应活化能的酶》一节的学习中已经学习过简单的对照实验和相关的实验设计原则,使本节课最后的实验设计得以顺利进行。4)他们具有一定的 分析问题的能力,实施问题探究教学是可行的。三、教法和学法根据上述对教材和学生的分析,本节采用以下教法和学法:1)实验法:以实验说明结论。生物学的教学就是实验的教学过程,实验的展示形式有学生分组实验、老师示范实验、动画和图片演示实验等,让实验现象说明问题,而不是直接让学生记住结论。2)问题探究教学发:以问题引发兴趣。整个教学过程要设置好问题,层层展开,层层递进,让新知识与旧知识融为一个整体,让学生在步步上升中攀登到知识的顶峰。3)比较学习法,同时采用多媒体辅助教学,解决光合作用抽象的过程。
(三)教学重、难点1、教学重点:结合课文,了解演讲辞针对性强、条理清楚、通俗易懂、适当的感情色彩等特点。2、教学难点:深入理解文章内涵,联系现实,体会本文的现实意义二、说学情高中学生在初中阶段已经接触过演讲辞了,对演讲词的特点已经有了一些基本的知识,因此本轮的教学应该让他们在此基础上有所提高。本文是学生在高中阶段第一次接触演讲辞,有必要让他们了解演讲辞的特点及课文如何体现这些特点的。随着年龄的增长,生活阅历的增加,高中学生正逐渐形成自己对世界、对人生的看法,蔡元培先生的这篇文章能很好地激发他们对当前的高中学习和未来的大学生活进行思考。此外,学生对北大的历史及蔡元培先生作这番演讲的时代背景了解不深,应作出补充说明。
一、说教材《别了,不列颠尼亚》是编排在人教版《普通高中课程标准实验教科书语文1(必修)》第四单元的课文,是精读课文《短新闻两篇》中的一篇,另一篇是《奥斯维辛没有什么新闻》。这一单元的学习内容是新闻和报告文学,还有两篇作品分别是中国报告文学三大里程碑之一的《包身工》和记录中国航天事业辉煌发展的《飞向太空的航程》。在当今信息大爆炸的时代,如何快速获得信息,如何在新闻中解读事件的真相,感悟生活的内涵成为语文教学的又一重大任务。因此这一单元的编入便更多地具有了时代意义,体现了语文学科与日常生活的密切关系。不仅如此,新闻特写和报告文学的选入,拓宽了学生对新闻类文章的了解,体现语文学科的工具性作用。在选文的过程中,新教材同时注重语文学科的人文性,四篇作品不仅传递着新鲜、真实的信息,同时更张显人文性的厚度,他们以饱满的情感,纵横的历史经验。
4、问题策略。引导学生提出问题、提出有价值的问题,是探究性学习的难点,也是课堂教学最有活力、最具创造力的亮点。我设计的课堂问题有:诗歌着力赞颂刘焦坚贞爱情和反抗精神,但他们许多地方却表现的非常顺从呢?焦母如此专横固执,为什么在焦刘悲剧发生后又要求合葬呢?这些由诗句生发的问题,会深深打动作学生的心灵,诱导学生去读诗,去背诗,去体味诗。5、手段方法。借助多媒体课件10个幻灯片、课文音频诵读资料、课文相关的文字资料,采用诵读法、讨论法、探究法等教学方法进行本课教学。6、板书设计:板书是教学内容的浓缩。根据教学重点和本诗特色,我的板书分预设和生成两块。预设板书设计有文章标题、情节结构、艺术特色三部分。文章标题孔雀东南飞情节结构被遣——誓别——抗婚——殉情——化鸟艺术手法①人物对话的个性化②铺陈排比的手法③起兴和尾声
一 减数分裂高一生物减数分裂说课稿各位评委、老师:大家好,我今天说课的题目是高中生物必修2第二章第一节〈〈减数分裂与受精作用〉〉第一部分减数分裂第一课时精子形成过程。接下来我就从以下几个方面来说说这一节课。一、说教材1.教材地位和作用《减数分裂》这一部分内容不仅是第二章的重点内容,也是整本书的重点内容之一。它以必修一学过的细胞学知识、染色体知识、有丝分裂知识和初中生殖种类知识为基础。通过学习,使学生全面认识细胞分裂的种类、实质和意义,为后面学习遗传和变异,生物的进化奠定细胞学基础。2.教学目标(1)知识目标:掌握减数分裂的概念和精子的形成过程;理解减数分裂和受精作用的意义。(2)能力目标:通过观察减数分裂过程中染色体的行为变化,培养学生识图、绘图能力以及比较分析和归纳总结的能力。
在学习语文经验交流会上,季老师举着我的《采花酿蜜集》,对大家说:“人日积月累辛勤采撷,终于酿出了知识的琼浆。大家都应这样,争做知识的富户啊!”老师有点激动,低低地爬在鼻梁上的眼镜突然滑了下来,正好落在那集子上。大家笑了,季老师也笑了。就这样,我的写作有了进步,好几篇作文登上了班级《学作园地》。从此,我爱上了语文,更深深地爱上了季老师。高中升学考前那个星期天的夜晚,季老师旧病复发,累倒了。半夜,老师们把他送进了公社卫生院。第二天,同学们都悄悄去卫生院看望。我去的时候,季老师正在挂滴流。可是,下午季老师又出现在讲台上,他脸色憔悴,声音沙哑……我手捧《采花酿蜜集》走近季老师,思绪的溪水从远方流了回来。“季老师”,我把本子捧给老师,深情地叫了声。季老师接过本子,仔细翻阅着,脸上露出了笑容,像是闻到了郁郁芳香的蜜汁似的。“进步不小呀!”季老师说着,又在本子扉页上题了
我还运用多媒体投影幻灯片给学生设置两组相互对照的选项,让同学们根据幻灯片选择:你赞同每组中那一种价值取向?一组是功名、进取、高官、厚禄与自然、隐逸、本性、自由。另一组是科学、发展、强大、集中与诗意、和谐、柔弱、个体。经过合作探究,讨论解答,学生结合陶渊明的归隐对第一组讨论探究的应该比较容易,而对第二组的理解探究会出现一定的难度,教师可以就学生的情感价值观方面适当的给予点拨引导:幻灯片上面的第二组文字通过对比,给我们提供了两种价值取向,你是要通过科学、发展、强大和集中来实现遨游太空等童话,那就势必会令我们放弃了诗意的童话,只关注工业的发展,城市面积的扩大,乡村田园必将减少 。你还是要维护生态平衡,保护一切的多样性呢?我认为诗意永远要领导科学,梅罗和陶渊明就共同表达了八个字——诗意、和谐、柔弱和个体。你的本性在田园,当我们身心疲惫时,我们都需要一个心灵的家园,所以我希望大家无论做何选择都能够守住我们那片宁静、祥和的心灵家园。