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人教版新課標小學數學四年級上冊直線、射線和角說課稿
讓學生通過觀察和比較，明確連接兩點的線段的長度叫做這兩點間的距離，兩點間的所有連線中線段的長度最短，進一步提升了學生的認識。二、認識角1、認識角的特征。談話：通過一點，可以畫無數條直線。那么通過一點，可以畫多少條射線呢？（無數條）操作：請你從一點起，在練習紙上畫出兩條射線？提問：從一點起畫兩條射線，組成的圖形叫什么？（板書：角）談話：想一想，剛才我們是怎樣畫出角的？什么樣的圖形是角？（從一點引出兩條射線所組成的圖形是角）請一個學生上黑板畫角，其余學生再畫一個與前面不同的角，并和同學說說自己畫的步驟。歸納：由一點引出的兩條射線所組成的圖形就是角。2.認識角的符號和各部分的名稱。談話：我們在二年級已經初步認識了角，通過今天的學習，我們將進一步加深對角的認識。請同學們打開課本第17頁，自學例2，并和小組里的同學說一說你又了解了哪些有關角的知識。
人教版高中政治必修2處理民族關系的原則：平等、團結、共同繁榮教案
一、教材分析普通高中思想政治課程標準及浙江省普通高中新課程實驗學科教學指導意見對本課時內容做了如下規(guī)定：基本要求：知道我國是統(tǒng)一的多民族國家；理解我國處理民族關系的三項基本原則及其相互關系；懂得處理民族關系的重要性，自覺履行維護國家統(tǒng)一和民族團結的義務。發(fā)展要求：聯(lián)系國內外的具體事例，加深理解我國處理民族關系的基本原則的重要性。本框題有如下內容不作拓展：我們偉大的祖國是各族人民共同締造的；我國新型民族關系的形成；實施西部大開發(fā)戰(zhàn)略對加快民族自治地方的經濟和社會發(fā)展的意義；我國能夠真正建立新型民族的原因?！短幚砻褡尻P系的原則：平等、團結、共同繁榮》是高一《政治生活》第三單元第七課內容，本課內容由三目構成，第一目：雪域高原的歷史性跨越，第二目：我國處理民族關系的基本原則，第三目：鞏固社會主義民族關系，我們該做什么，能做什么。
人教版高中政治必修2處理民族關系的原則-平等、團結、共同繁榮說課稿
環(huán)節(jié)四 情感升華，感悟生活播放《愛我中華》，感受祖國的偉大，民族的團結。設計意圖：使學生感受偉大的中華民族的精神，內心產生共鳴，抒發(fā)強烈的愛國熱情。教師帶領學生一起合唱，用歌聲結束本堂課內容，能再次喚起學生的愛國情感，使學生認識到：維護國家統(tǒng)一和民族團結是每個公民的義務。環(huán)節(jié)五 課堂小結 鞏固知識本節(jié)課我采用線索性的板書，整個知識結構一目了然，為了充分發(fā)揮學生在課堂的主體地位，我將課堂小結交由學生完成，請學生根據課堂學習的內容，結合我的板書設計來進行小結，以此來幫助教師在第一時間掌握學生學習信息的反饋，同時培養(yǎng)學生歸納分析能力、概括能力。本節(jié)課，我根據建構主義理論，強調學生是學習的中心，學生是知識意義的主動建構者，是信息加工的主體，要強調學生在課堂中的參與性、以及探究性，不僅讓他們懂得知識，更讓他們相信知識，并且將知識融入到實踐當中去，最終達到知、情、意、行的統(tǒng)一。
北師大初中七年級數學上冊線段、射線、直線教案1
解析：可以根據線段的定義寫出所有的線段即可得解；也可以先找出端點的個數，然后利用公式n（n－1）2進行計算.方法一：圖中線段有：AB、AC、AD、AE、BC、BD、BE、CD、CE、DE；共4＋3＋2＋1＝10條；方法二：共有A、B、C、D、E五個端點，則線段的條數為5×（5－1）2＝10條.故選C.方法總結：找線段時要按照一定的順序做到不重不漏，若利用公式計算時則更加簡便準確.【類型四】 線段、射線和直線的應用由鄭州到北京的某一次往返列車，運行途中?？康能囌疽来问牵亨嵵荨_封——商丘——菏澤——聊城——任丘——北京，那么要為這次列車制作的火車票有（）A.6種 B.12種C.21種 D.42種解析：從鄭州出發(fā)要經過6個車站，所以要制作6種車票；從開封出發(fā)要經過5個車站，所以要制作5種車票；從商丘出發(fā)要經過4個車站，所以要制作4種車票；從菏澤出發(fā)要經過3個車站，所以要制作3種車票；從聊城出發(fā)要經過2個車站，所以要制作2種車票；從任丘出發(fā)要經過1個車站，所以要制作1種車票.再考慮是往返列車，起點與終點不同，則車票不同，乘以2即可.即共需制作的車票數為：2×（6＋5＋4＋3＋2＋1）＝2×21＝42種.故選D.
【高教版】中職數學基礎模塊上冊：1.2《集合之間的關系》優(yōu)秀教案
學科數學 課 題 1.2 集合之間的關系班級 人數 授課時數2 課 型新課 周次 授課時間 教 學 目 的 知識目標：（1）掌握子集、真子集的概念； （2）掌握兩個集合相等的概念； （3）會判斷集合之間的關系. 能力目標：培養(yǎng)學生的分析問題能力解決問題的能力． 情感目標：通過師生互動，學生之間的討論分析，加強合作意識。 教學重點集合與集合間的關系及其相關符號表示． 教學難點真子集概念的理解．
人教版新課標小學數學四年級下冊小數點位置移動引起小數大小變化說課稿
4、實際生活中的應用。提問學生：小數點位置移動引起小數大小的變化這規(guī)律在學習和生活有什么應用？（讓學生思考在學習中，點錯小數點的位置，小數的大小就不一樣了。如果在銀行統(tǒng)計時點錯右漏寫小數點會怎樣？）教育學生做事認真細心。（四）小結質疑，自我評價這節(jié)課我們學習了什么？小數點位置移動引起小數大小的變化規(guī)律是怎樣的？質疑：對今天的學習還有什么疑問嗎？（培養(yǎng)學生敢于質疑，勇于創(chuàng)新的精神）評價：首先自評，學生對自己學得怎樣，用什么方法學習，印象最深的內容是什么進行評介。接著可以生生互評或師生互評，教師重點表揚大部分學得好的同學或全班的同學，增強學生的自信心和榮譽感，使他們更加熱愛數學。（五）作業(yè)布置：1、回憶一遍操作探索發(fā)現規(guī)律的整個過程，進一步培養(yǎng)學生良好的學習方法和習慣。2、預習97頁，例2和例3，做書上98頁練習第三題。
新人教版高中英語必修3Unit 1 Festivals and Celebrations教學設計一
本板塊的活動主題是“談論節(jié)日活動”（Talk about festival activities），主要是從貼近學生日常生活的角度來切入“節(jié)日”主題。學生會聽到發(fā)生在三個國家不同節(jié)日場景下的簡短對話，對話中的人們正在參與或將要親歷不同的慶?；顒印ｋS著全球化的進程加速，國際交流日益頻繁，無論是國人走出國門還是外國友人訪問中國，都已成為司空見慣的事情。因此，該板塊所選取的三個典型節(jié)日場景都是屬于跨文化交際語境，不僅每組對話中的人物來自不同的文化背景，對話者的身份和關系也不盡相同。1. Master the new words related to holiday: the lantern, Carnival, costume, dress(sb)up, march, congratulation, congratulate, riddle, ceremony, samba, make - up, after all. 2. To understand the origin of major world festivals and the activities held to celebrate them and the significance of these activities;3. Improve listening comprehension and oral expression of the topic by listening and talking about traditional festivals around the world;4. Improve my understanding of the topic by watching pictures and videos about different traditional festivals around the world;5. Review the common assimilation phenomenon in English phonetics, can distinguish the assimilated phonemes in the natural language flow, and consciously use the assimilation skill in oral expression. Importance:1. Guide students to pay attention to the attitude of the speaker in the process of listening, and identify the relationship between the characters;2. Inspire students to use topic words to describe the festival activities based on their background knowledge. Difficulties:In the process of listening to the correct understanding of the speaker's attitude, accurately identify the relationship between the characters.
新人教版高中英語必修3Unit 2 Morals and virtues教學設計一
(2) students are divided into groups according to the requirements of activity 3. Each student shares a story of personal experience or hearing-witnessing kindness, and then selects the most touching story in the group and shares it with the whole class. Before the students share the story, the teacher can instruct them to use the words and sentence patterns in the box to express. For example, the words in the box can be classified:Time order: first of all, then, after that, later, finally logical relationship :so, however, although, butTeachers can also appropriately add some transitional language to enrich students' expression:Afterwards, afterwards, at last, in the end, eventuallySpatial order: next to, far from, on the left, in front ofOtherwise, nevertheless, as a result, therefore, furthermore, in addition, as well asSummary: in a word, in short, on the whole, to sum up, in briefStep 8 Homework1. Understand the definition of "moral dilemma" and establish a correct moral view;2. Accumulate vocabulary about attitudes and emotions in listening texts and use them to express your own views;3. Complete relevant exercises in the guide plan.1、通過本節(jié)內容學習，學生能否理解理解“道德困境”的定義；2、通過本節(jié)內容學習，學生能否通過說話人所表達的內容、說話的語氣、語調等來判斷其態(tài)度和情緒；3、通過本節(jié)內容學習，學生能否針對具體的道德困境發(fā)表自己的看法和見解，能否掌握聽力理訓練中的聽力策略。
新人教版高中英語必修3Unit 3 Diverse Cultures教學設計一
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.
北師大初中數學七年級上冊直線、射線、線段說課稿
（六）當堂達標（練習二、三 10分鐘）練習二讓學生口答，通過練習，鞏固學生對直線、射線、線段表示方法的掌握。練習三讓學生去黑板板演，教師檢驗對錯并重點強調幾何語言的表述。文字語言和圖形語言之間的轉化是難點，著重練習文字語言向圖形語言的轉化，提高幾何語言的理解與運用能力。當堂達標是檢查學習效果、鞏固知識、提高能力的重要手段。通過練習，學生會體驗到收獲和成功，發(fā)現存在的不足，教師也及時獲得信息反饋，以便課下查漏補缺。 （七）小結（3分鐘）教師提問“這節(jié)課我們學了哪些知識？”請學生回答，教師做適當補充。課堂小結對一節(jié)課起著“畫龍點晴”的作用，它能體現一節(jié)課所講的知識和數學思想。因此，在小結時，教師引導學生概括本節(jié)內容的重點。
小學數學人教版四年級下冊《乘、除法的意義和各部分間的關系》說課稿
尊敬的各位評委老師： 你們好！我說課的內容是義務教育教科書人教版小學數學四年級下冊第一單元第5-6頁的內容《乘除法的意義和各部分間的關系》。下面我談談本節(jié)課的教學設想，不妥之處，懇請各位教師指正。一．我對教材的理解（教材分析）——參考教學參考書《乘除法的意義和各部分間的關系》是人教版小學四年級下冊第一單元四則運算中第2課時的教學內容。本課是在學生對整數乘除法有了較多的接觸，積累了豐富的感性認識并掌握了相應的基礎知識和技能的基礎上進行抽象、概括，上升到理性的認識。為后面學習的四則運算打基礎，也為以后學習小數、分數的意義和關系做鋪墊。二．學情分析（根據考評要求，可不說）因為年齡特征決定了四年級學生活潑好奇好動，雖具一定的抽象思維能力，但仍然以形象思維為主；就知識層面上，已經學習了簡單整數乘除法，對整數乘除法及各部分名稱有初步的感性認知，初步具備了理性認知學習的基礎；同時又存在個體差異，多數學生思維活躍，數學興趣濃厚，表現欲望強烈，少數學生缺乏積極性，學習被動。
北師大初中九年級數學下冊圓周角和圓心角的關系教案
解析：點E是BC︵的中點，根據圓周角定理的推論可得∠BAE＝∠CBE，可證得△BDE∽△ABE，然后由相似三角形的對應邊成比例得結論．證明：∵點E是BC︵的中點，即BE︵＝CE︵，∴∠BAE＝∠CBE.∵∠E＝∠E(公共角)，∴△BDE∽△ABE，∴BE∶AE＝DE∶BE，∴BE2＝AE·DE.方法總結：圓周角定理的推論是和角有關系的定理，所以在圓中，解決相似三角形的問題常?？紤]此定理．三、板書設計圓周角和圓心角的關系1．圓周角的概念2．圓周角定理3．圓周角定理的推論本節(jié)課的重點是圓周角與圓心角的關系，難點是應用所學知識靈活解題．在本節(jié)課的教學中，學生對圓周角的概念和“同弧所對的圓周角相等”這一性質較容易掌握，理解起來問題也不大，而對圓周角與圓心角的關系理解起來則相對困難，因此在教學過程中要著重引導學生對這一知識的探索與理解．還有些學生在應用知識解決問題的過程中往往會忽略同弧的問題，在教學過程中要對此予以足夠的強調，借助多媒體加以突出.
北師大初中八年級數學下冊不等關系教案
A．20x－55≥350 B．20x＋55≥350C．20x－55≤350 D．20x＋55≤350解析：此題中的不等關系：現在已存有55元，計劃從現在起以后每個月節(jié)省20元．若此學生平板電腦至少需要350元．列出不等式20x＋55≥350.故選B.方法總結：用不等式表示數量關系時，要找準題中表示不等關系的兩個量，并用代數式表示；正確理解題中的關鍵詞，如負數、非負數、正數、大于、不大于、小于、不小于、不足、不超過、至少、至多等的含義．三、板書設計1．不等式的概念2．列不等式(1)找準題目中不等關系的兩個量，并且用代數式表示；(2)正確理解題目中的關鍵詞語的確切含義；(3)用與題意符合的不等號將表示不等關系的兩個量的代數式連接起來；(4)要正確理解常見不等式基本語言的含義．本節(jié)課通過實際問題引入不等式，并用不等式表示數量關系．要注意常用的關鍵詞的含義：負數、非負數、正數、大于、不大于、小于、不小于、不足、不超過，這些關鍵詞中如果含有“不”“非”等文字，一般應包括“＝”，這也是學生容易出錯的地方.
新人教版高中英語必修3Unit 1 Festivals and Celebrations教學設計二
1. Ss look at the picture and scan the passage to understand the main idea while teacher is giving the following questions to inspire Ss to think.*Where are those people?*What are they doing?*Why are they so excited?2. Ss complete the passage with the appropriate -ing form. Then discuss and check the answers with class.Answers: boring, interesting, taking, exciting, amazing3. The teacher raises questions for the students to discuss and encourages them to express their opinions.*Do you like La Tomatina? Why or why not?4. Each group representative reports the discussion result, the teacher gives feedback and the evaluation.Step 6 PracticeActivity 41. Ss complete the Ex 2 in Using structures.2. Check the answers after finishing the exercises.①The dragon boat races are the most exciting part of the Dragon Boat Festival.② The children were excited to go Easter egg hunting.③What an amazing performance! This is the best music festival I have ever been to.④We were amazed by her funny-looking hat.⑤His inspiring speech at the conference won the admiration/ favour of the audience.⑥This is a challenging game to test your memory and observation capabilities. 3. T asks Ss to finish Ex 3 and 4 in Using structures by themselves, then check the answers with class.Step 6 Homework1. Understand and master the functions and usage of the -ing form;2. Finish the other exercises in Using structures.1、通過本節(jié)內容學習，學生是否理解和掌握動詞-ing形式作定語和表語的功能和意義；2、通過本節(jié)內容學習，學生能否在理解文段內容的基礎上，根據上下文語境和表達邏輯，能正確運用動詞-ing形式描述節(jié)日慶典。3、通過本節(jié)內容學習，學生是否歸納和積累用于表達情緒的相關詞匯。
新人教版高中英語必修3Unit 2 Morals and Virtues教學設計二
Activity 41. Students complete the task of activity 4, then teachers and students check the answers. 2. The teacher organized the students to work together and asked them to use the tables and mind maps sorted out before to retold the important choices in Lin Qiaozhi's life and their resultsStep 5 Language points1. The teacher asks the students to read the text carefully, find out the core words and long and difficult sentences in the text and draw lines, understand the use of vocabulary, and analyze the structure of long and difficult sentences. 2. The teacher explains and summarizes the usage of core vocabulary and asks the students to take notes. 3. The teacher analyzes and explains the long and difficult sentences that the students don't understand, so that the students can understand them better. Step 6 Homework1. Read the text again, in-depth understanding of the text; 2. Master the use of core vocabulary and understand the long and difficult sentences. 3. Complete relevant exercises in the guide plan. 1、通過本節(jié)內容學習，學生是否理解和掌握閱讀文本中的新詞匯的意義與用法；2、通過本節(jié)內容學習，學生能否結合文本特點總結林巧稚的人生原則和人格品質特征；3、通過本節(jié)內容學習，學生能否針對人生抉擇發(fā)表自己的看法；能否全面地、客觀地、理性地看待問題，進而對道德和人性有更加深入的思考和理解。
新人教版高中英語必修3Unit 2 Morals and Virtues教學設計三
The joke set her crying.這個玩笑使她哭起來。Step 5 ReadingActivity 31. Students read the small text in activity 3. The teacher provides several small questions to check whether students understand the content of the text and the ideographic function of the -ing form in the text.*Where are those people?*Why did Dr Bethune come to China?*How did he help the Chinese people during the war?*What did Chairman Mao Zedong say about him?2. Ss try to rewrite some sentences using the -ing form. Then check the answers. When checking the answers, the teacher can ask different students to read the rewritten sentences and give comments.Answers:1. he became very interested in medicine, deciding to become a doctor.2. …after hearing that many people were dying in the war.3. Helping to organise hospitals, he taught doctors and nurses, and showed people how to give first aid./ He helped to organise hospitals, teaching doctors and nurses, and showing people how to give first aid.4. …praising Dr Bethune as a hero to be remembered in China.Step 6 PracticeActivity 4Students complete grammar activities 2 and 3 on page 69 of the workbook.Step 6 Homework1. Understand and master the functions and usage of the -ing form;2. Finish the other exercises in Using structures.1、通過本節(jié)內容學習，學生是否理解和掌握動詞-ing形式作賓語補足語語和狀語語的功能和意義；2、通過本節(jié)內容學習，學生能否正確使用動詞-ing形式描述人物的行為、動作及其經歷；3、通過本節(jié)內容學習，學生能否獨立完成練習冊和導學案中的相關練習。
新人教版高中英語必修3Unit 2 Morals and Virtues教學設計四
3.Teachers ask different groups to report the answers to the questions and ask them to try different sentence patterns.The teacher added some sentence patterns for students to refer to when writing.Step 4 Writing taskActivity 51.Write the first draft.Students first review the evaluation criteria in activity 5, and then independently complete the draft according to the outline of activity 4, the answers to the questions listed in the group discussion and report, and the reference sentence pattern.2.Change partners.The teacher guides the students to evaluate their partner's composition according to the checklist of activity 5 and proposes Suggestions for modification.3.Finalize the draft.Based on the peer evaluation, students revise their own compositions and determine the final draft.Finally, through group recommendation, the teacher selects excellent compositions for projection display or reading aloud in class, and gives comments and Suggestions.Step 5 Showing writingActivity 5T call some Ss to share their writing.Step 6 Homework1. Read the passage in this section to better understand the passage.2. Carefully understand the hierarchical structure of the article, and deeply understand the plot of the story according to the causes, process and results;3. Independently complete the relevant exercises in the guide plan.1、通過本節(jié)內容學習，學生是否理解和掌握閱讀文本中的新詞匯的意義與用法；2、通過本節(jié)內容學習，學生能否通過人物言行的對比分析道德故事的深層內涵；3、通過本節(jié)內容學習，學生能否根據故事的起因、經過和結果來深入理解故事的情節(jié)，從而了解文章的層次結構；4、結合現實生活案例發(fā)表自己的見解和看法,寫一篇觀點明確、層次分明的故事評論。
新人教版高中英語必修3Unit 3 Diverse Cultures教學設計三
The price is the same as(the price was)before the war.價格與戰(zhàn)前相同。(4)定語從句中的“關系代詞＋助動詞be”可以省略。The ticket(that/which was)booked by his sister has been sent to him.他妹妹訂的那張票已送到了他那里。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、通過本節(jié)內容學習，學生是否理解和掌握省略的用法；2、通過本節(jié)內容學習，學生能否根據上下文語境或情景恢復句子中省略的成分，體會使用省略的效果；3、通過本節(jié)內容學習，學生能否獨立完成練習冊和導學案中的相關練習。
新人教版高中英語必修3Unit 3 Diverse Cultures教學設計二
(2)Consolidate key vocabulary.Ask the students to complete the exercises of activity 6 by themselves. Then ask them to check the answers with their partners.(The first language:Damage of the 1906 San Francisco earthquake and fire.A second language: Yunnan - one of the most diverse provinces in China).Step 5 Language points1. The teacher asks the students to read the text carefully, find out the more words and long and difficult sentences in the text and draw lines, understand the use of vocabulary, and analyze the structure of long and difficult sentences.2. The teacher explains and summarizes the usage of core vocabulary and asks the students to take notes.3. The teacher analyzes and explains the long and difficult sentences that the students don't understand, so that the students can understand them better.Step 6 Homework1. Read the text again, in-depth understanding of the text;2. Master the use of core vocabulary and understand the long and difficult sentences.3. Complete relevant exercises in the guide plan.1、通過本節(jié)內容學習，學生是否理解和掌握閱讀文本中的新詞匯的意義與用法；2、通過本節(jié)內容學習，學生能否結合文本特點了解文章的結構和作者的寫作邏輯；3、通過本節(jié)內容學習，學生能否了解舊金山的城市風貌、文化特色，以及加利福尼亞州的歷史，體會多元文化對美國的影響。
新人教版高中英語必修3Unit 3 Diverse Cultures教學設計四
該板塊的活動主題是“介紹一個有顯著文化特征的地方”( Describe a place with distinctive cultural identity)。該板塊通過介紹中國城繼續(xù)聚焦中國文化。本單元主題圖呈現的是舊金山中國城的典型景象, Reading and Thinking部分也提到中國城,為該板塊作鋪墊。介紹中國城的目的主要是體現中國文化與美國多元文化的關系,它是美國多元文化的重要組成部分。中國城也是海外華人的精神家園和傳播中國文化的重要窗口,外國人在中國城能近距離體驗中國文化。1. Read the text to understand the cultural characteristics of Chinatown in San Francisco and the relationship between Chinese culture and American multiculturalism;2. Through reading, learn to comb the main information of the article, understand the author's writing purpose and writing characteristics;3. Learn to give a comprehensive, accurate, and organized description of the city or town you live in;Learn to revise and evaluate your writing.Importance:1. Guide the students to read the introduction of Chinatown in San Francisco and grasp its writing characteristics;2. Guide students to introduce their city or town in a comprehensive, accurate and organized way;3. Learn to comb the main information of the article, understand the author's writing purpose, and master the core vocabulary.
