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人教版高中生物必修2基因在染色体上说课稿

  • 人教版高中政治必修4价值与价值观精品教案

    人教版高中政治必修4价值与价值观精品教案

    一、教材分析我们使用的是人教版第四册《生活与哲学》教材,本框属于第四单元第十二课第一框题。其内容主要分两目,第一目主要介绍价值的含义、人是社会一切财富的创造者、人的价值在于创造价值和对社会的责任和贡献,以及对一个人的评价主要看他的贡献等内容。第二目主要介绍价值观的导向作用,内容包括价值观的含义、价值观对人们认识世界和改造世界的活动具有导向作用以及对人生道路的选择具有导向作用。二、教学目标知识目标:1、识记价值和价值观的基本含义;价值观的导向作用。2、理解人的价值是什么?如何评价人的价值。3、运用所学知识及相关哲学原理,分析物的价值和人的价值的 不同,从中加深对人的价值的理解评论分析为什么对一个人的评价要看他的贡献,而不是索取了多少。

  • 新人教版高中英语必修1Unit 1 Teenage Life-Reading for Writing教案

    新人教版高中英语必修1Unit 1 Teenage Life-Reading for Writing教案

    【教材分析】This teaching period mainly deals with reading for writing a letter of advice. Students are expected to learn the knowledge about how to write a suggestion letter. The teacher is expected to enable students to master some writing skills concerning suggestion letters and learn to write one.【教学目标与核心素养】1. Get students to have a good understanding of how to write a suggestion letter properly.2. Enable students to use some writing skills flexibly.3. Develop students’ writing and cooperating abilities.4. Strengthen students’ great interest in writing discourses.【教学重难点】1. How to enable students to have a good understanding of the skills of writing a suggestion letter2.How to enable students to write a good recommendation letter using some writing skills properly.【教学过程】Step 1: Lead in Begin the class with the lead-in questions: how to write a letter for advice? What kinds of aspects should be included? It is strongly recommended that the teacher should ask students to discuss the topic freely with their partners and brainstorm some ideas concerning the topic. In this way, students can come up with more ideas and avoid being nervous at the beginning of the class.Step 2: Read to discover details concerning advice letters’ writing style.The teacher is expected to ask students to read a letter offering some advice on page 18 silently and then request students to discuss the questions below.

  • 新人教版高中英语必修1Unit 4 Natural Disasters- Reading for writing教案

    新人教版高中英语必修1Unit 4 Natural Disasters- Reading for writing教案

    ①标题——标题应当简洁明了。②导语——导语是消息开头的第一段或第一句话,简明扼要地揭示出消息的核心内容。③主体——主体是消息的主要部分,要用充足的事实表现主题,对导语的内容作进一步的展开和阐述。④结束语——通常是对全文内容进行概括性的总结。3. 新闻报道增分句子(1)陈述事实常用的句型:①A terrible storm hit/struck ... , killing ..②It was a cool autumn night when the earthquake happened. A large number of buildings fell down and roads were destroyed, leaving a great many people homeless.地震发生在一个凉爽的秋夜。大量的建筑物倒塌,道路被毁,许多人无家可归。③With the help of the rescue team, people who were the trapped in the flood were saved.在救援队的帮助下,困在洪水中的人们得救了。(2)陈述观点常用的句型:①Clearly/Obviously/In my opinion/It seemed that people were shocked.显然/在我看来/似乎人们震惊了。②The whole city was in ruins after the earthquake.地震后整个城市成了一片废墟。(3)揭示原因常用的句型:Because of/As a result of/Thanks to the help of the army, people who got injured were sent to the hospital immediately.

  • 新人教版高中英语必修1Unit 4 Natural Disasters-Discovering Useful Structures教案

    新人教版高中英语必修1Unit 4 Natural Disasters-Discovering Useful Structures教案

    【教材分析】This teaching period mainly deals with the grammar: the restrictive relative clauses.This period carries considerable significance to the cultivation of students’ writing competence and lays a solid foundation for the basic appreciation of language beauty. The teacher is expected to enable students to master this period thoroughly and consolidate the knowledge by doing some exercise of good quality.【教学目标与核心素养】1. Get students to have a good understanding of the basic usages of the restrictive relative clauses.2. Enable students to use the restrictive relative clauses flexibly.3. Develop students’ speaking and cooperating abilities.4. Strengthen students’ great interest in grammar learning.【教学重难点】How to enable students to have a good understanding of the restrictive relative clauses, especially the uses of the relative words such as which, that, who, whom.【教学过程】Step1: 语法知识呈现定语从句(一)—关系代词的用法在复合句中, 修饰名词或代词的从句叫定语从句。定语从句通常由关系代词或关系副词引导,说明事物的具体信息,从句位于被修饰词之后。被定语从句修饰的词叫先行词,引导定语从句的词叫关系词,关系词指代先行词,并在定语从句中充当成分。关系词有两种:关系代词who, whom ,whose, that, which, as和关系副词when, where, why。

  • 新人教版高中英语必修1Unit 4 Natural Disasters-Reading & Thinking教案

    新人教版高中英语必修1Unit 4 Natural Disasters-Reading & Thinking教案

    5. Read to get detailed information about Paragraph 5.Q1. What shows the revival of Tangshan?Q2. How can Tangshan revive itself and get up on its feet again?Q3. In times of disasters, how can we go through it?T: In times of disasters, we should unify, show the wisdom and stay positive.Step 4 Activity 4 Highlighting the theme and reflecting1. Make a summary of the text.2. Further understand the titleQ: After our learning, why do you think the earth didn’t sleep on that night?T: An earthquake happened. The people in the earthquake suffered a lot, and the people outside Tangshan were concerned about the people there a lot.3. Reflect through discussion on what can be learnt after reading.T: Disasters are powerful. Unpreparedness can be deadly. Life is weak, but if people work together to help each other, disasters can be defeated.There is no love from disaster, but we have love in the human heart.Step 5 Assignment How does the writer convey that the earthquake was deadly, and that people were helpless during the earthquake? Try to find some attractive and impressive expressions and note them down.

  • 新人教版高中英语必修1Welcome Unit-Discovering Useful Structures & Listening and Talking教案

    新人教版高中英语必修1Welcome Unit-Discovering Useful Structures & Listening and Talking教案

    常跟双宾语的动词有:(需借助to的)bring, ask, hand, offer, give, lend, send, show, teach, tell, write, pass, pay, promise, return等;基本句型 五S +V + O + OC(主+谓+宾+宾补)特点:动词虽然是及物动词,但是只跟一个宾语还不能表达完整的意思,必须加上一个补充成分来补足宾语,才能使意思完整。 判断原则:能表达成—宾语 是…/做…注:此结构由“主语+及物的谓语动词+宾语+宾语补足语”构成。宾语与宾语补足语之间有逻辑上的主谓关系或主表关系,若无宾语补足语,则句意不够完整。可以用做宾补的有:名词,形容词,副词,介词短语,动词不定式,分词等。如:He considers himself an expert on the subject.他认为自己是这门学科的专家。We must keep our classroom clean.我们必须保持教室清洁。I had my bike stolen.我的自行车被偷了。We invited him to come to our school.我们邀请他来我们学校。I beg you to keep secret what we talked here.我求你对这里所谈的话保密。用it做形式宾语,而将真正的宾语放到宾语补足语的后面,以使句子结构平衡,是英语常用的句型结构方式。即:主语+谓语+it+宾补+真正宾语。如:We think it a good idea to go climb the mountain this Sunday.

  • 新人教版高中英语必修1Welcome Unit-Reading and Thinking教案

    新人教版高中英语必修1Welcome Unit-Reading and Thinking教案

    Step 2 New WordsUse ppt to show some words from the passage.Tell the students to remember the meanings.Step3 Skimming and Thinking1. Skim the text and decide which order Han Jing follows to talk about her first day. Time order or place order?Time order2. What is Han Jing worried about before she goes to senior high school?She is worried about whether she will make new friends and if no one talks to her, what she should do.Step 4 Fast Reading1. Match the main ideas with each paragraphParagraph 1:The worries about the new school day Paragraph 2Han Jing’s first maths classParagraph 3Han Jing’s first chemistry classParagraph 4Han Jing’s feelings about her first senior school dayStep 5 Careful Reading1. Fill in the chart with the words and phrases about Han Jing’s day. Answers: Senior high school, a little nervous; Her first maths class, classmates and teachers, friendly and helpful; Chemistry lab; new; great; annoying guy; Confident; a lot to explore2. Read the text again and discuss the questions.1) Why did Han Jing feel anxious before school?Because she was a new senior high student and she was not outgoing. What was more, she was worried about whether she can make friends.2) How was her first maths class?It was difficult but the teacher was kind and friendly. 3) What happened in the chemistry class? What would you do if this happened to you? A guy next to Han Jing tried to talk with her and she couldn’t concentrate on the experiment.

  • 新人教版高中英语必修1Welcome Unit-Reading for Writing教案

    新人教版高中英语必修1Welcome Unit-Reading for Writing教案

    教学目标知识目标:让学生更好理解如何恰当地写一个人的信息介绍,并能让学生熟练地使用一些写作技能。能力目标:培养学生的写作能力和团队协作能力。情感目标:提升学生对写作的兴趣。教学重难点 教学重点:如何能让学生更好地理解个人信息介绍。教学难点:如何能让学生通过适当地使用一些写作技能来写一篇较好的个人信息介绍。教学准备 多媒体、黑板、粉笔一、Pre-class1. Greetings2. Leading-inAsk students how to write a profile. What kinds of aspects should be included? The teacher asks students to discuss the topic with each other and put forward to much more ideas about the answer.二、While-class1. The teacher lets students to read the student profiles on Page 8 silently and then asks students to discuss the questions below.1. What is Ann like? How do you know?2. What are Thando’s hobbies?3. Where does Thando come from?4. What is Thando’s dream?5. What does “You will never see me without a book or a pen” mean?

  • 新人教版高中英语必修3Unit 3 Diverse Cultures教学设计三

    新人教版高中英语必修3Unit 3 Diverse Cultures教学设计三

    The price is the same as(the price was)before the war.价格与战前相同。(4)定语从句中的“关系代词+助动词be”可以省略。The ticket(that/which was)booked by his sister has been sent to him.他妹妹订的那张票已送到了他那里。Step 5 PracticeActivity 3(1) Guide students to complete the four activities in the Using Structures part of exercise book, in which activities 1 and 2 focus on ellipsis in dialogue answers, activity 3 focus on signs and headlines, two typical situations where ellipsis is used, and activity 4 focus on ellipsis in diary, an informal style.(2) Combine the examples in the above activities, ask students to summarize the omitted situations in groups, and make their own summary into a poster, and post it on the class wall after class to share with the class.(This step should give full play to the subjectivity of students, and teachers should encourage students to conclude different ellipsis phenomena according to their own understanding, they can conclude according to the different parts omitted in the sentence.)Step 6 Homework1. Understand and master the usages of ellipsis;2. Finish the other exercises in Using structures of Workbook.1、通过本节内容学习,学生是否理解和掌握省略的用法;2、通过本节内容学习,学生能否根据上下文语境或情景恢复句子中省略的成分,体会使用省略的效果;3、通过本节内容学习,学生能否独立完成练习册和导学案中的相关练习。

  • 新人教版高中英语必修3Unit 3 Diverse Cultures教学设计一

    新人教版高中英语必修3Unit 3 Diverse Cultures教学设计一

    Activity 81.Grasp the main idea of the listening.Listen to the tape and answer the following questions:Who are the two speakers in the listening? What is their relationship?What is the main idea of the first part of the listening? How about the second part?2.Complete the passage.Ask the students to quickly review the summaries of the two listening materials in activity 2. Then play the recording for the second time.Ask them to complete the passage and fill in the blanks.3.Play the recording again and ask the students to use the structure diagram to comb the information structure in the listening.(While listening, take notes. Capture key information quickly and accurately.)Step 8 Talking Activity 91.Focus on the listening text.Listen to the students and listen to the tape. Let them understand the attitudes of Wu Yue and Justin in the conversation.How does Wu Yue feel about Chinese minority cultures?What does Justin think of the Miao and Dong cultures?How do you know that?2.learn functional items that express concerns.Ask students to focus on the expressions listed in activity. 3.And try to analyze the meaning they convey, including praise (Super!).Agree (Exactly!)"(You're kidding.!)Tell me more about it. Tell me more about it.For example, "Yeah Sure." "Definitely!" "Certainly!" "No kidding!" "No wonder!" and so on.4.Ask the students to have conversations in small groups, acting as Jsim and his friends.Justin shares his travels in Guizhou with friends and his thoughts;Justin's friends should give appropriate feedback, express their interest in relevant information, and ask for information when necessary.In order to enrich the dialogue, teachers can expand and supplement the introduction of Miao, dong, Lusheng and Dong Dage.After the group practice, the teacher can choose several groups of students to show, and let the rest of the students listen carefully, after listening to the best performance of the group, and give at least two reasons.

  • 人教版高中地理必修1地球的圈层结构教案

    人教版高中地理必修1地球的圈层结构教案

    师:很好。由于存在地球大气圈、地球水圈和地表的矿物,在地球上这个合适的温度条件下,形成了适合于生物生存的自然环境。人们通常所说的生物,是指有生命的物体,包括植物、动物和微生物。据估计,现有生存的植物约有40万种,动物约有110多万种,微生物至少有10多万种。据统计,在地质历史上曾生存过的生物约有5亿~10亿种之多,然而,在地球漫长的演化过程中,绝大部分都已经灭绝了。现存的生物生活在岩石圈的上层部分、大气圈的下层部分和水圈的全部,构成了地球上一个独特的圈层,称为生物圈。生物圈是太阳系所有行星中仅在地球上存在的一个独特圈层。课堂小结:地球所有的外部圈层是相互渗透、相互影响,甚至相互重叠的,在太阳和人类生活的参与下,整个地球生机盎然;同时,它们起着保护地球的作用,可以减弱太阳和宇宙辐射对地表的影响,减少宇宙中的陨石对地球表面的撞击。外部各圈中的物质运动和循环,是促使地表物质和形态演变的重要动力。

  • 人教版高中地理必修1地球的运动教案

    人教版高中地理必修1地球的运动教案

    三维目标:知识和技能 1、了解地球自转和公转的方向及一些基本数据:周期、速度、公转轨道、黄赤交角。2、理解由于地球自转运动造成的昼夜交替、地方时差,掌握时间的有关换算,能正确判断晨昏线。3、理解地球自转和公转的关系,理解太阳直射点的南北移动的过程及其原因,并能演示其运动规律。4、理 解昼夜长短和正午太阳高度的季节变坏纬度变化 。过程与方法 1、通过运用地球仪演示地球的自传和公转现象,学生能够准确的画出夏至日到冬至日太阳照射地球的示意图2、能根据“二分二至日太阳照射地球示意图”分析全球各 地的昼夜长短和正午太阳高度的变化,分析同纬度地区不同季节和不同纬度地区相同季节的昼夜长短和正午太阳高度的变化。

  • 人教版高中地理必修1全球气候变化教案

    人教版高中地理必修1全球气候变化教案

    科学家预测,就地区而言,位于低纬度的大部分国家,农作物的产量将减少;而位于高纬度的国家,农作物产量有可能增加。由于不少发展中国家位于低纬度地区,因此,气候变化的这种区域差异性,可能会使发展中国家所面临的问题更为严峻。板书:3全球变暖将加剧水资源的不稳定性与供需矛盾。介绍:全球变暖会影响整个水循环过程,可能使蒸发加大,改变区域降水量和降水分布格局,增加降水极端异常事件的发生,导致洪涝、干旱灾害的频次和强度增加,以及地表径流发生变化。随着径流减少,蒸发增强,全球变暖将加剧水资源的不稳定性与供需矛盾。转折:既然全球变暖会引起很多不利影响,那么作为人类应如何面对这一挑战呢?这就是我们要讨论的第三个问题。板书:三、气候变化的适应对策讨论:请大家阅读结合教材P53气候变化的适应对策部分讨论人类应如何面对全球变暖这一问题 呢?

  • 人教版高中地理必修1太阳对地球的影响教案

    人教版高中地理必修1太阳对地球的影响教案

    当时,不只发生了太阳风暴,同时还有其它的现象发生,导致灾难巨大。 如果,这些现象单独地发生,结果就会是另外一个样子。正是由于这些因素综合起来,1859年的太阳风暴,才在人类历史上留下了浓墨重彩的一笔。太阳磁暴开始干扰通信日本卫星首个被“击中”日本航天机构29日声明,受强烈的太阳磁暴影响,28日晚,日本“儿玉(Kodama)”通讯卫星信号中断。 据美联社报道,在太阳黑子活动减弱后,“儿玉”通讯卫星恢复正常运转。 美欧研究人员28日发布新闻公告称,太阳当天发生了一次强烈的耀斑爆发,预示着新一轮太阳风暴将在今后一两天内抵达地球,地球上的通信等设施可能会因此受到部分干扰。与这次耀斑爆发相伴,太阳表面还产生了一股强大的日冕物质喷射,方向几乎直冲地球。研究人员说,喷射产生的带电粒子流正以约每小时750万公里的速度奔地球而来,其与地球磁场作用后可能会形成比较强烈的地磁暴,使地球两极出现极光,并可能对卫星运行和通信等造成干扰。

  • 人教版高中地理必修3森林的开发和保护教案

    人教版高中地理必修3森林的开发和保护教案

    角色扮演:学生扮演政府官员、热带丛林土著居民、 世界环保组织官员、开发商等角色,从角色的立场讨论亚马孙河流域热带雨林的开发活动规则: 每个小组认领一种角色,用5分钟的时间讨论和整理思路,然后推荐一位代表做中心发言,小组的其他同学可以随时补充。发言时请说 明所扮演的角色,尽可能多的发表建设性意见。如果需要,可以上台展示材料【学生互动】 风云辩论:雨林破坏谁之错?正方观点:雨林破坏,亚马孙地区 的国家和 居民应负主要责任反方观点: 雨林破坏,发达国家应负主要责任 【师生小结】 雨林的开发,既有发展中国家经济的需要,也有发达国家国际市场的牵动。保护雨林,是全人类的共同责任,尤其发达国家应该承担更多的责任。保护亚马逊雨林符合长远利益和全球利益。但这与雨林所在地国家的发展产生了矛盾,如何解决之一矛盾是雨林开发与保护的关键。【过渡承转】 绿色和平组织警告说,如果不采取有效措施制止对森林的破坏,80年内热带雨林可能完全从地球上消失。开发还是保护?这是雨林的两种前途,也

  • 高中数学人教版必修二直线的点斜式方程教案

    高中数学人教版必修二直线的点斜式方程教案

    【教学目标】知识目标:理解直线的点斜式方程、斜截式方程、横截距、纵截距的概念;掌握直线的点斜式方程、斜截式方程的确定.能力目标:通过求解直线的点斜式方程和斜截式方程,培养学生的数学思维能力与数形结合的数学思想.情感目标:通过学习直线的点斜式方程和斜截式方程,体会数形结合的直观感受.【教学重点】直线的点斜式方程、斜截式方程的确定.【教学难点】直线的点斜式方程、斜截式方程的确定.

  • 高中数学人教版必修二直线的点斜式方程教案

    高中数学人教版必修二直线的点斜式方程教案

    【教学重点】直线的点斜式方程、斜截式方程的确定.【教学难点】直线的点斜式方程、斜截式方程的确定.【教学过程】1、对特殊三角函数进行巩固复习;表1 内特殊三角函数值 不存在图1 特殊三角形2、巩固复习直线的倾斜角和斜率相关内容;直线的倾斜角:,;直线的斜率: , ;设点为直线l上的任意两点,当时,

  • 人教版高中政治必修3传统文化的继承教案

    人教版高中政治必修3传统文化的继承教案

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