-
人教版高中英語必修1Nelson Mandela--A Modern Hero說課稿
In this step, give students a few minutes to read the passage . While they are reading, I will write some key words of the text on the blackboard. Then ask students to retell the passage according to the key words.By retelling, students can improve their ability of language organization and have an overall understanding of the article.Step 4 Group discussionIn this step, students will be divided into groups of 4 to discussion the following question: What qualities make a great person?After their discussion, invite a few groups to make a report to the class.This group discussion can practice students’ oral English and cultivate their abilities of cooperation and communication.Step 5. HomeworkLet students write a short passage to introduce a great person he or she admires.The homework can consolidate the knowledge the students have learned and cultivate their writing ability. Part 6 Blackboard Design（板書設(shè)計）That’s all my teaching procedures. Finally, I’d like to say sth about part 6 blackboard design. On the top is the title. On the left, there will be some new words and expressions. In the middle of the blackboard, I will write some useful sentence structures so that the students can know clearly what they’ve learned and then try to master the knowledge.OK. That’s all for my presentation. Thank you for your attention.
人教版高中英語必修1English around the world說課稿
(3)v. 給：提出；展現(xiàn)，顯現(xiàn)present sb. with sth. ; present sth. to sb. 把. . 交給；頒發(fā)；授予present sth. (for sth. )/present sth. to sb. e. g. Om his birthday, his friends presented him a collection of stamps. 在他生日時，他的朋友們送給他一套郵票作為禮物。The sword was presented by the family to the museum. 這家人把寶劍捐贈給了博物館。The committee will present the final report to Parliament in June. 委員會將在六月向議會提交最后的報告。You need to present yourself better. 你需要更善于展現(xiàn)自己。It is essential that we present a united front. 至關(guān)重要的是我們要表現(xiàn)得更加團結(jié)。Step 4 ConsolidationT:Now that we have got a general idea of these words and phrases. Lets make up some sentences using them to master them. Suggested sentences:1. Your duties include typing letters and answering the telephone. 2. It is one of the greatest roles that she has played. 3. A large number of people have applied for the job. 4. The number of the panda is declining. 5. I'11 go there, even if I have to walk. 6. He came up to me to ask for a light. 7. The novel is about a family who can't communicate with each other. 8. He based his plan on interests of most people. 9. Why doesn't he make use of his singing talent?Step 5 Summary and homeworkT:Today we dealt with several new words and phrases. After class I hope that youcan read them again and again to keep them in mind. That's all for today. You aredismissed.
人教版高中英語必修1Journey Down the Mekong說課稿
2. let the Ss complete the forms paragraph by paragraph. Purpose here is to help Ss to get the habit of reading a passage as a whole, and pay attention to the organization of the text, as a result the Ss will fully understand the whole passage.3. ask Ss to retell the passage with the help of the key words in the form.Since the Ss in the class are in different levels, so I let them to fill in the blank to understand the meaning of the words and phrases better. ( That’s all for the while-reading. Now let’s move to the fifth step.)Step V: Post-reading (10mins) ---DiscussionIn this part students are asked to discuss in groups and list Wang Kun’s and Wang Wei’s attitudes about the trip. After that, Ss are encouraged to express their attitudes with the whole class. Collect their answers and don’t forget to praise them even if their answers may not be perfect.In this activity, discussion provides a vivid and active learning environment for Ss to communicate in English with newly learned language items. (Finally it comes to the homework.)StepⅥ: Homework (1min)1. Ss are required to read the text again after class and figure out the meaning of some complex sentences.2. Do the exercises on P19; This can help Ss to consolidate what they’ve learnt and make preparation for the next lessonPart4. Blackboard design.（說板書設(shè)計）On the top, there is the title of this lesson. On the left, there are main ideas for each paragraph. On the right, there are some new words and expressions.Unit 3 Travel journalJourney down the MekongMain idea of each para.:Para1: deciding to take a great bike trip along the Mekong river.Para2: Different attitudes between Wang kun and Wang wei.
人教版高中政治必修3文化與經(jīng)濟、政治說課稿
（二）講授新課：1、講授重點：文化與經(jīng)濟、政治的關(guān)系。我首先帶領(lǐng)學(xué)生分析課本上的活動探究，了解日常生活中的常見活動，讓學(xué)生們觀看視頻材料幫助學(xué)生對文化活動、經(jīng)濟活動、政治活動進行辨別和分類。然后讓學(xué)生們舉例說明，綜合探究，最后通過集體討論得出文化與經(jīng)濟政治的關(guān)系：經(jīng)濟是基礎(chǔ)，政治是經(jīng)濟的集中表現(xiàn)，文化是經(jīng)濟和政治的反映，一定的文化由一定的經(jīng)濟和政治決定，又反作用于政治和經(jīng)濟。這個問題是本課重點。要引導(dǎo)學(xué)生循序漸進，集體討論，得出結(jié)論。2、突破難點：（1）文化與經(jīng)濟政治相互交融，在時代發(fā)展的進程中。首先播放上海世博會視頻，讓學(xué)生體會文化、經(jīng)濟、政治活動，另外我會引導(dǎo)學(xué)生積極舉生活中的事例，來說明問題，讓學(xué)生學(xué)會舉一反三，充分理解這一知識，讓學(xué)生明白文化與經(jīng)濟、政治的聯(lián)系，讓學(xué)生清楚文化滲透的力量有多大，幫助學(xué)生樹立反對文化霸權(quán)主義的意識。
人教版高中政治必修3體味文化說課稿
（二）引入內(nèi)容1、播放幻燈片，從名言引出思考，什么是文化，如何理解文化？學(xué)生探究，既可質(zhì)疑，也可談自己對文化的理解2、幻燈片，以三組幻燈，分三個階段，學(xué)生分別通過小組討論的形式，歸納總結(jié)文化現(xiàn)象的三個特征3、根據(jù)對文化現(xiàn)象的認識，歸納總結(jié)文化的內(nèi)涵及外延小活動：把不是文化的山、水、樹，由幾組同學(xué)畫出來，體會文化的含義4、一組判斷題，哪些是文化的，哪些不是5、理解文化的特點首先，根據(jù)前面，總結(jié)文化現(xiàn)象的特征，歸納出文化的普通性及特殊性其次，播放視頻，歸納總結(jié)文化是人類特有的現(xiàn)象第三，根據(jù)教材材料，小組探究總結(jié)，文化是后天習(xí)得的第四，借助小活動的材料，歸納，文化需要一定的物質(zhì)載體6、文化的作用首先、觀看視頻，小組探究總結(jié)，文化對于人的影響其次，觀看視頻，小組探究總結(jié)，文化對社會的影響
人教版高中政治必修3感受文化影響說課稿
（2）世界觀，人生觀，價值觀是人們文化素養(yǎng)的核心和標(biāo)志。一旦形成就會對人產(chǎn)生深遠持久的影響。（但隨著生活閱歷的變化，人們文化素養(yǎng)的提高，人們的“三觀”會發(fā)生變化。）總之“潛移默化”指每時每刻，不知不覺；是從文化對人影響的過程來看的。“深遠持久”指經(jīng)年累月，難以抹去；是從文化對人影響的結(jié)果上說的。3.課堂總結(jié)：首先啟動學(xué)生思維，教會學(xué)生把握知識主線，建構(gòu)知識體系，先由學(xué)生進行總結(jié)，然后教師進行必要的補充4、布置作業(yè)：布置作業(yè)。運用文化對人的影響的知識分析“近朱者赤，近墨者黑”，并且應(yīng)該如何處理朋友之間的關(guān)系。設(shè)計這個作業(yè)的意圖是既讓學(xué)生靈活運用所學(xué)知識，同時又讓學(xué)生回歸生活，如何處理朋友之間的關(guān)系。5、板書設(shè)計遵循板書設(shè)計的實用性、直觀性的原則，根據(jù)本課的教材特點，我采用結(jié)構(gòu)式板書，這樣設(shè)計比較直觀、系統(tǒng)，以便于學(xué)生能夠系統(tǒng)把握和理解知識。
人教版高中政治必修3聚焦文化競爭力說課稿
（1）文化與經(jīng)濟、政治在經(jīng)濟基礎(chǔ)上相互影響。①經(jīng)濟、政治和文化是社會生活的三個基本領(lǐng)域。其中，經(jīng)濟是基礎(chǔ)，政治是經(jīng)濟的集中表現(xiàn)，文化是經(jīng)濟和政治的反映。一定的文化由一定的經(jīng)濟、政治所決定，又反作用于一定的政治、經(jīng)濟，給予政治、經(jīng)濟以重大影響。②經(jīng)濟發(fā)展是文化發(fā)展的基礎(chǔ)。但這并不意味著文化的發(fā)展始終與經(jīng)濟的發(fā)展亦步亦趨。如同不能簡單地把精神文明看作是物質(zhì)文明的派生物和附屬品一樣，也不能簡單地認為文化是經(jīng)濟、政治的派生物和附屬品。文化有其自身的傳承性和相對的獨立性。那種認為只要物質(zhì)條件好了，精神文化自然而然地就會好起來，物質(zhì)條件差一點，精神文化就不可能搞好的觀點，不符合歷史發(fā)展的事實，是不正確的。③掀開歷史的畫卷，文化既有古今和地域之別，又有先進與落后、腐朽之分。不同的文化，對經(jīng)濟、政治的影響不同，對社會發(fā)展的作用也不同。不同民族的文化，影響不同民族和國家各具特色的發(fā)展道路。
人教版高中政治必修3體味文化說課稿
3、文化的力量。為了使學(xué)生能辨證地分析文化的力量，我設(shè)計了兩個問題進行探討：（1）是不是任何文化都能起促進作用？（2）你在聽或唱國歌時感受到一種什么樣的力量？這樣，學(xué)生在對比中學(xué)會辨證地分析文化的力量——先進的、健康的文化能促進社會發(fā)展和個人成長；落后的、腐朽的文化則阻礙社會發(fā)展和個人成長。同時還能提高學(xué)生的文化賞析能力，從而引導(dǎo)學(xué)生裝自覺參加健康有益的文化活動，抵制不良文化的影響，投身到社會主義精神文明建設(shè)中去。關(guān)于課堂練習(xí)，我準(zhǔn)備了5個針對性比較強的選擇題，從而加深鞏固本框題的重難點知識。最后，播放歌曲《走進新時代》，展示本課知識結(jié)構(gòu)，指出本框題需重點掌握的問題，結(jié)束本課教學(xué)。課后作業(yè)，我設(shè)計了這樣一個辨析的題目：文化是人們創(chuàng)造的全部財富的總和，它是人類特有的現(xiàn)象。
高中語文人教版必修三《動物游戲之謎》說課稿
科學(xué)是人類認識世界的重要工具，閱讀科普說明文不僅可以啟迪心智，了解更多知識。而且更夠激發(fā)學(xué)生對科學(xué)的興趣。學(xué)習(xí)這些文章要注重學(xué)生科學(xué)精神的培養(yǎng)，關(guān)注科學(xué)探索的過程，感受科學(xué)家在科學(xué)探索中表現(xiàn)的人格魅力。我們知道一些科學(xué)家就是因為閱讀了相關(guān)的科普文章才對某一學(xué)科產(chǎn)生興趣，從而走上成功之路的。我們在講解的時候可以跟學(xué)生列舉一些例子，讓學(xué)生認識到一篇好的科普文章的重大意義。
人教版高中英語必修4Body Language說課稿4篇
Textbook: Senior English for China (Book 4), by Liu Daoyi Time Allotment: 1 period (40 minutes)Date: March 20, 2014Teaching aids: blackboard, Multi-media, Power Point, chalk I. Text Analysis （教材分析）This unit is about body language, and the text selected in the reading part demonstrates the difference and similarity of body language in many parts of the world. Through learning this passage, students are required to raise their awareness of using body language in different parts of the world. As body language is closely related to our daily life, it is easy to arouse students’ interest in learning this text. Reading skills and speaking training are designed around the text.II. Teaching Objectives （教學(xué)目標(biāo)）By the end of the lesson, students will be able to:1. Language Skill Objective（語言技能目標(biāo)）: develop reading ability （skimming and scanning）as well as speaking ability.2. Cultural Knowledge Objective（文化知識目標(biāo)）: know about the cultural differences of using body language.3. Affective Objective（情感目標(biāo)）: increase students’ awareness of using body language correctly in different cultures. III.Teaching Focuses and Difficulties（教學(xué)重點和難點）1. Teaching Focuses（教學(xué)重點）: the difference and similarity of body language in many parts of the world.2. Teaching Difficulties（教學(xué)難點）: develop students’ reading abilities of skimming and scanning and ask the students to show their opinions with fluent English.
人教版高中英語必修4Women of achievement說課稿4篇
Good morning, distinguished judges:It’s my honor to talk about my teaching ideas with you. Today my topic is Women of Achievement. My presentation consists of six parts: the analysis of teaching material and student, teaching aims, key and difficult points, teaching and studying method, teaching procedures and blackboard design.First, let’s focus on the analysis of teaching material. This lesson is from New Senior English for China Student’s Book 4 Unit 1, the reading part. The main topic of the passage is the introduction of a student of Africanwildlife. After this lesson, the students will learn more information about her studying chimps in Africa, and their reading and speaking abilities can be developed as well.The next part is the analysis of students. My students are in senior high students. They have learnt English for many years, they’ve known many words and sentences, but their speaking and reading abilities are still not very good. So I will practice their speaking and reading abilities through different exercises.According to the New Standard Curriculum and the present situation, I set the teaching aims as follows: firstly, knowledge aims. Students can grasp some new words, such as worthwhile, move off. Moreover, students can understand the content of the passage and get familiar with the topic of studying chimps in wildlife. Secondly, ability aims. Students can use reading strategies such as skimming and scanning in reading process. Thirdly, emotional aims. Students can have the awareness of protecting animals and care about animals.Based on the above analysis, the key point of this lesson is to get the main idea and the detailed information from the passage; the difficult point is to talk about the wildlife protection and use reading strategies.
人教版高中英語必修2Cultural Relics說課稿2篇
Ⅲ. Analysis of the teaching material:The topic of this unit is cultural relics. Students are quite interested in topics about different cultures around the world. This is the second period of the whole unit. As a reading class, the passage mainly talks about the history of the amber room (how it was made, sent as a gift, lost and rebuilt).According to the new national curriculum, when teaching reading, much emphasis should be put on training the students’ reading skills.Ⅳ. Teaching objectives1. Language objectives:1) Students are required to master the key words and phrases occurred in the passage (e.g. amazing, decorate, belong, in return, less than etc.)2) Students are required to learn the attributive clause and acquire the sentence pattern.2. 1) Students are required to describe a certain thing by using the new sentence patterns.2) Students are required to master two kinds of reading skills—skimming and scanning, and learn to use them in their daily reading.3. 1) Students are required to know the history of the amber room.2) Students are required to appreciate cultural relics and understand the importance of protecting them.Ⅴ. Teaching important and difficult points1) the new words, phrases, and sentence pattern in the course of reading.2) Teaching difficult point: Help the students master two kinds of reading skills—skimmingand scanning and learn to apply them in daily use.Ⅵ. Teaching methods:Task-based method & Top-down model Ⅶ. Teaching aids: PPT, pictures, blackboard Ⅷ. Teaching procedure:
人教版高中英語必修5First aid說課稿6篇
In this class, I have 3 teaching aims, that is, knowledge aims, ability aims and emotion aims.1) Knowledge-Teach students new words and expressions, such as temporary, bleed,sprain choke, first aid, fall ill and so on.-Enable students to have a better understanding for some basic knowledge of first aid.2) Ability-Train students’ speaking, reading and writing abilities by different teaching activities, such as skimming, comprehending, team work, role play, retelling and writing.-Develop students’ reading strategy on how to move general idea to specific information.3) Emotion-Promote students’ awareness of giving first aid.- Cultivate students’ creativities.Then let’s come to my teaching methods and activities.III. Teaching methods and activities:To achieve different teaching aims, various kinds of teaching methods and activities will be adopted throughout this period, such as TBL (task-based learning), skimming, team work, brainstorm and others, which can offer students opportunities to fulfill tasks in which they can use language to achieve a specific outcome.IV. Teaching aids:Computer and blackboardV. Teaching important points:1) Make students have a clear mind for the structure of the text.2) Help students understand the theme of the text.VI. Teaching difficulties:1) So many new words may affect students’ understanding.2) How to get students to know about the functions of the skin and thecauses, characteristics and treatments for different degree burns,and the knowledge about giving first aid. VII. Blackboard design:
人教版高中英語必修5Great scientists說課稿4篇
通過寫文章梗概，培養(yǎng)學(xué)生綜合運用語言的能力，學(xué)習(xí)用恰當(dāng)?shù)挠⒄Z描述科學(xué)家的故事。這是本課的教學(xué)難點。教師可以使用完形填空的方式來幫助學(xué)生整理語篇，從而來降低難度。本課的教學(xué)重點的突破方法是：在閱讀前，讓學(xué)生初步了解得出科學(xué)觀點所需要的基本程序，從而輕松而自然地導(dǎo)入文章的閱讀；在閱讀過程中，由易到難設(shè)計快速閱讀和精讀的問題，層層推進各種閱讀活動，讓學(xué)生對閱讀內(nèi)容從整體感知到細節(jié)理解，最后深層讀懂整篇文章，同時加強閱讀策略的指導(dǎo)，讓每個學(xué)生都主動參與課堂教學(xué)活動，最終達到提高閱讀能力的目的。Step 4 Post-readingGroup Activities四人小組共同合作，在老師的適當(dāng)指導(dǎo)下，就以下2個問題展開討論，讓學(xué)生就所知、所學(xué)、所感和所想融入話題，然后抽若干同學(xué)代表作小組發(fā)言。1. What do you think about John Snow, and what should we learn from him?2. Cholera was 19th century disease, which two diseases are similar to cholera today? Why?
人教版高中英語必修5Life in the Future說課稿5篇
Good afternoon, everyone. It’s my great pleasure to be here sharing my lesson with you. The content of my lesson is Senior English for China Book5 Unit 3 Life in the Future. I’ll be ready to begin this lesson from six parts: Analysis of the teaching material, Analysis of the students, Teaching aims and important and difficult points, Teaching methods and aids, Teaching procedures, and Blackboard design. First, let me talk about the teaching material.Part 1 Analysis of the Teaching Material:This unit is about what human beings’ life will be like in about one thousand years. By studying of this unit, we’ll Enable the students to know the changes in humans’ life and some new inventions bringing about the change and develop the interest in science. This lesson plays an important part in the English teaching in this unit. This is an important lesson in Book Five. From this lesson, it starts asking the Ss to grasp contents of each passage. Therefore, this lesson is in the important position of the teaching material. If the Ss can learn it well, it will be helpful to make the Ss learn the rest of this unit.Part 2 Analysis of the SsAs Senior2 Ss, they are at different levels of English fluency, some of them have lost interest in English. So during the lesson, I arrange a variety of activities to let all of them join in to attract their interest and let them be confident and taste the joy of success.
人教版高中英語必修5Making the news說課稿4篇
今天我們來介紹一下必修五第四單元的授課方式。這個單元的題目是Making the news。應(yīng)該是學(xué)生比較感興趣的話題，學(xué)生往往對新聞工作充滿好奇，所以我們可以利用這個機會多設(shè)計一些師生互動和學(xué)生互動，來激發(fā)起學(xué)習(xí)的積極性，提高學(xué)習(xí)效率。同時我們可以利用這個單元不僅幫助學(xué)生掌握語言知識，培養(yǎng)語言能力，同時讓其了解新聞工作的重要性，培養(yǎng)起社會智能感。這個單元分為六個課時，它的教學(xué)目標(biāo)是這樣的：語言目標(biāo)是掌握詞匯表中的常用單詞和短語，掌握倒裝句的一些基本用法。 技能目標(biāo)是能初步掌握約會的基本句型并在真實的場景下正確運用。新聞報道類文章的寫作技能。采訪的基本規(guī)范和溝通技能。情感目標(biāo)是對新聞報道的客觀性和真實性有更好的理解。對新聞記者的職業(yè)有更深入的了解，并能體會其工作的重要性。下面我們來介紹一下第一課時的授課方式，第一課的教學(xué)目標(biāo)是這樣的第一課時的教學(xué)目標(biāo)語言目標(biāo):單詞：Occupation, journalist, editor, photographer, curious, personality, enthusiasm
人教版高中英語必修5The United Kingdom說課稿4篇
Teaching Aims:Knowledge 1. Get the students to learn the useful new words and expressions in this section. Aims:2. Let the students learn about how the UK was formed and the four groups of invaders.1. Develop students’ reading ability and let them learn different Ability reading skills. Aims:2. Enable students to learn to talk about the United Kingdom and the Union Jack Emotional 1. Let students know more about the UK2. Develop students’ sense of cooperative learning Aims:Teaching Important Points:1. Let the students learn about the countries of the United Kingdom and the Union Jack2. Get the students to read the passage and know about how the UK was formed and the four groups of invaders.3. Have the students learn different reading skills.Teaching Difficult Ponts:1. Develop students’ reading ability.2. Enable students to talk about the United Kingdom and the Union Jack.3. Let students learn how the UK was formed geographically and historically.Teaching Methods:Showing pictures, asking, exercising, listening, reading etc.Teaching Aids:A computer,a projector and a blackboard.Teaching Procedures: 1) Show a map of the world, ask students the following questions:Where is the UK?What’s the full name of the UK?2) Ask the students work in pairs to do the quiz on Page 9.Do you want to test how many things you know about the United Kingdom? Let’s have a small test.Using the map on P9, students answer the following questions:?How many countries does the UK consist of? What are they??England is divided into three main areas. Do you know what they are? 1) Scanning (10Minutes )Let the students hold the questions asked in pre-reading and read the passagequickly and then let them do the following exercise.Join lines to the right answer.
人教版高中英語必修2The Olympic Games說課稿2篇
Purpose of my design:To ask the students to do these two tasks will make the Ss predict the story of this passage. As a result, it will deepen Ss’ memory of this story because they will have their own understanding of this story.Step 3. While-readingTask 1. (Individual work _____min)Skimming: ask students to skim the text and the main ideas of each paragraph in this passage. Please read it quickly and then match the sentences with the letters.Task 2. (Individual work _____min)Scanning: read the text quickly and decide the whether the following statements are true or false and give reasons.Task 3. (Pair work _____min)Listen to the tape and fill in the banks. Then read the paragraph with expression to your partner.Task4 (individual work min)Listen to the tape again and write down the main idea in one sentence.Purpose of my design: Enable students to understand the given material better by using different reading skills. And proper competition can arouse the Ss’ interest in English learning. “Task-based” teaching method is used here todevelop the Ss’ ability of communication and also their ability of co-operation will be well trainedStep 4. Post-readingTask 1. (Individual work, pair work, group work, class work; _____min)Discussion (group of 4):1. If you were Hippomenes, would you run against Atlanta?2. Do you think Hippomenes deserved to win the race? Why or why not?Step 5. HomeworkPlease read the story again carefully after class and imagine: What will happen during the race between Hippomenes and Atlanta? Who do you think will win the race? Do you think Atlanta would marry Hippomenes? Write an end for the story with thses questions.Purpose of my design: Homework is so important and necessary for to master the knowledge they learned after class. It will check whether the Ss achieve the teaching aims.Part 5 Blackboard design
人教版新課標(biāo)高中地理必修2第五章第一節(jié)交通運輸方式和布局教案
（2）修建通向西藏的鐵路，要克服哪些自然障礙？①凍土的季節(jié)凍融作用使路基不穩(wěn)固，也使修路技術(shù)難度大，成本高②生態(tài)脆弱，植被破壞后難以修復(fù)③高原缺氧，使施工困難④廣布的荒漠，多山的地形都使建設(shè)難度加大（3）結(jié)合初中所學(xué)知識分析，未來穿行于青藏高原鐵路運輸線上的貨車中主要運輸?shù)呢浳镉心男?？以鹽湖中礦物為原料的化工產(chǎn)品，有色金屬及其加工產(chǎn)品，畜產(chǎn)品及外省運入的各種工業(yè)品等?！究偨Y(jié)新課】交通運輸網(wǎng)的基本要素包括：交通線（鐵路、公路、航道、管道）和交通點（港口、車站、航空港）；運輸網(wǎng)有單一和綜合運輸網(wǎng)二種形式。分國家級、省級和大區(qū)級三個層次。交通運輸網(wǎng)的點線布局受經(jīng)濟、社會、技術(shù)和自然等因素的影響。【課后作業(yè)】：完成高一地理第二冊填圖冊 第五章第一節(jié)
人教版高中生物必修2DNA的復(fù)制說課稿
設(shè)問：DNA復(fù)制后兩個子代DNA分子與親代DNA分子是否完全相同？為什么？通過設(shè)問，讓學(xué)生進一步理解和鞏固DNA復(fù)制的全過程。接下來讓學(xué)生總結(jié)出DNA復(fù)制的四大基本條件：① 模板：開始解旋的DNA分子的兩條單鏈；② 原料：是游離在核液中的脫氧核苷酸；③ 能量：是通過水解ATP提供；④ 酶：酶是指一個酶系統(tǒng)，不僅僅是指一種解旋酶。最后通過以上分析，總結(jié)出DNA復(fù)制的意義以及在生活中的應(yīng)用：意義：DNA通過復(fù)制，使遺傳信息從親代傳給子代，從而保證了物種的相對穩(wěn)定性，保持了遺傳信息的連續(xù)性，使物種得以延續(xù)。應(yīng)用：目前DNA分子廣泛應(yīng)用于刑事案件偵破等方面：如：DNA分子是親子鑒定的主要證據(jù)之一。把案犯在現(xiàn)場留下的毛發(fā)、血等進行分析作為破案的證據(jù)，與DNA有關(guān)。五、設(shè)計課堂練習(xí)：設(shè)計一題典型課堂練習(xí)：即有關(guān)半保留復(fù)制及計算的習(xí)題：