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人教版高中語文必修1《荊軻刺秦王》教案
教學(xué)目標：1、知識與能力：①了解荊軻刺秦王的歷史背景和過程，整體感知課文。②掌握文言文中重要的字、詞、句解釋，提高翻譯能力。③學(xué)會從人物的對話、動作、神態(tài)描寫入手，分析主要人物形象。2、情感與態(tài)度：正確看待荊軻刺秦王這一事件，學(xué)會歷史而辯證地評價人物。重點難點：評價歷史事件，分析人物形象。教學(xué)方法：朗讀法、提問法、討論法課時安排：三課時教學(xué)過程：第一課時一、導(dǎo)入：（課前展示雕塑照片）來到正定講課，我感到非常高興，一進縣城，就被這里濃郁的歷史文化氣息所感染。我們住在華陽假日酒店，外面正在興建文化廣場，剛才的照片就是在那里拍攝的。在此，我進一步了解到正定這座文化古城悠久的歷史淵源，這里有南越王趙佗，常勝將軍趙云，一代名家顏真卿等等，可謂物華天寶、人杰地靈。因此我相信我們正定中學(xué)的同學(xué)們一定都非常優(yōu)秀。這也讓我更深刻地體會到一個道理：語文的外延就是生活的外延。
人教版高中語文必修1《再別康橋》教案2篇
教學(xué)過程：一、交流誦讀課文技巧?！?jié)奏、韻腳、感情……（5分鐘）二、再讀確定自己的學(xué)習主題（15分）1、主題提示：音樂美、繪畫美、建筑美簡介詩歌“三美”追求聞一多先生是我國現(xiàn)代文學(xué)史上集詩人、學(xué)者和斗士于一身的重要詩人。他不但致力于新詩藝術(shù)美的探索，提出了音樂美、繪畫美、建筑美的詩歌\"三美\"的新格律詩理論主張，還努力進行創(chuàng)作實踐，寫出了許多精美詩篇。他的新格律詩理論被后人稱為現(xiàn)代詩學(xué)的奠基石，影響深遠?！对姷母衤伞肥锹勔欢嘞壬盗性娬撝凶钪匾囊黄?。在這篇論文中，他系統(tǒng)的提出\"詩的實力不獨包括音樂的美（音節(jié)）、繪畫的美（詞藻），并且還有建筑的美（節(jié)的勻稱和句的均齊）。\"這一關(guān)于新詩\"三美\"主張遂成為新格律詩派的理論綱領(lǐng)。
人教版高中語文必修2《演講》教案2篇
一個世紀前，一位了不起的美國人簽署了奴隸解放宣言，而我們今天就站在他的塑像下面。對于千千萬萬身受不公正待遇之苦的黑奴來說，這份劃時代的文件，是一座光芒萬丈的希望燈塔，是結(jié)束他們被束縛之漫漫長夜的快樂黎明。我有一個夢，有朝一日在喬治亞州的丘陵地帶，奴隸的后代與奴隸主的后代，將能夠兄弟般地相處。我有一個夢，有朝一日甚至密西西比州，這個充滿不平與壓迫的州，將轉(zhuǎn)化成一片自由與公正的綠洲。我有一個夢，我的四個孩子，有朝一日將可以生活在這樣一個國度里：在此人們不是根據(jù)他們的膚色，而是根據(jù)他們的品行來衡量他們。我今天有一個夢！我有一個夢，有朝一日在阿拉巴馬州，盡管目前有許多惡毒的種族主義者，盡管州長叫嚷著要與聯(lián)邦政府對抗，有朝一日在阿拉巴馬州，黑人孩子與白人孩子將會像兄弟姊妹那樣親密無間。
人教版高中語文必修2《荷塘月色》教案3篇
請問，作者究竟聽到歌聲沒有？”學(xué)生回答：“沒有。”“這里是比喻，因為這里用得是‘仿佛’一詞……”對，是比喻。也就是說，作者是用歌聲來比喻荷香，是吧？“但是，“荷香與歌聲有什么可比的共同點嗎？”“荷香與歌聲都是斷斷續(xù)續(xù)、若有若無的。”“而且朦朦朧朧的。”“對。“荷香和歌聲都是‘縷縷’的、‘渺茫’的。這是比喻。這是一種特殊的比喻，錢鐘書先生把它叫做‘通感’。人們通過視覺、聽覺、觸覺、味覺、嗅覺等五官感知外界事物時，在一般情況下，彼此不能交錯；但在特殊情況下，五官功能卻能出現(xiàn)互相轉(zhuǎn)化、彼此溝通的現(xiàn)象叫“通感”，也叫“移覺”。舉幾個例子來說明：詩人艾青曾寫詩這樣描繪日本著名指揮家小澤征爾：‘你的耳朵在偵察，你的眼睛在傾聽……’這也是通感。又如：“那笛聲里有故鄉(xiāng)綠色平原上青草的香味，有四月的龍眼花的香味，有太陽的光明?！保üL《葉笛》）
人教版高中語文必修2《巴黎圣母院》教案2篇
【教學(xué)設(shè)想】一、選題設(shè)想《巴黎圣母院》是雨果的代表作，無論從思想內(nèi)容還是藝術(shù)風格都有明顯的浪漫主義特征：奇異曲折、扣人心弦的故事情節(jié)；妙趣橫生、別出心裁的奇遇巧合；強烈鮮明的美丑、善惡對比；豐富生動、珠璣迸發(fā)、富有哲理意味的語言。通過導(dǎo)讀，來消除學(xué)生對外國名著的畏難情緒，增加學(xué)生課外閱讀的興趣和信心；讓學(xué)生整體把握作品，窺一斑而識全豹，讓學(xué)生高屋建瓴，了解其旨意，以極為精確而又充滿意蘊的文字，對名著的概述及精要部分做了介紹；引導(dǎo)學(xué)生自主探究，交流合作，培養(yǎng)學(xué)生的獨立思考的學(xué)習慣，指點進行名著閱讀的門徑。作為導(dǎo)讀課，教師應(yīng)注意不可“越位”，在學(xué)生學(xué)習的過程中，教師的“導(dǎo)”固然重要，學(xué)生的“讀”更不可或缺，應(yīng)避免以“導(dǎo)讀”來代替名著閱讀。因此，《巴黎圣母院》的教學(xué)定位為基于課內(nèi)，面向課外，以求達到以學(xué)帶讀，以讀促學(xué)的目的。
人教版高中語文必修5《逍遙游》教案
六、到此為止，我們了解到，作者對“笑”鯤鵬和別人的蜩與學(xué)鳩、斥鴳、宋榮子都一一作了否定。那么請大家討論一下，1、作者對鯤鵬和“知效一官，行比一鄉(xiāng)，德合一君，而征一國者”是不是肯定呢？明確：也都作了否定。否定后者好理解，關(guān)鍵是否定前者不好理解，因為“鯤鵬展翅”早已作為積極的意象被人們廣泛引用。但在本文中，作者在講述這一寓言故事時，突出的不是鯤鵬本身，而是風力，“故九萬里，風斯在下矣，而后乃今培風；背負青天，而莫之夭閼者，而后乃今將圖南”。對風力作用的突出，實際上就是對鯤鵬的否定。作者寫了“笑”的雙方，對“笑”的一方蜩與學(xué)鳩、斥鴳、宋榮子都作了否定，對被“笑”的一方鯤鵬和“知效一官，行比一鄉(xiāng)，德合一君，而征一國者”也都作了否定，并且對順便提及的野馬、塵埃、芥、大舟、朝菌、蟪蛄、冥靈、大椿、彭祖、列子等事物或者人物也都作了否定。這種全盤否定的態(tài)度，如果我們借用本文中的一個形象的詞語，可以說是：笑！是的，本文也可以說是：莊子“笑”萬物！
人教版高中歷史必修1開創(chuàng)外交新局面教案
（3）中國積極發(fā)展與周邊國家的睦鄰友好關(guān)系，以建設(shè)和平的周邊環(huán)境：成立并積極參與上海合作組織的活動時間：2001年10月地點：上海與會者：中國、俄羅斯、哈薩克斯坦、吉爾吉斯斯坦、塔吉克斯坦、烏茲別克斯坦六國文件：《上海合作組織成立宣言》性質(zhì)：是一個以互信求安全、以互利求合作的新型區(qū)域合作組織 意義：對加強中國與俄羅斯及中亞各國的政治和經(jīng)濟合作，起到重要作用。中國積極參與上海合作組織的活動，并發(fā)揮了主導(dǎo)作用?！颈菊n小結(jié)】★ 1971年中國恢復(fù)在聯(lián)合國的合法席位，打破了美國實行的孤立中國的政策?！镏忻纼蓢`活務(wù)實的方向努力，乒乓外交打開了中美兩國的大門，尼克松訪華、《中美聯(lián)合公報》和《中美建交公報》的發(fā)表促成了1979年兩國的建交，中美關(guān)系走向正?；?
新人教版高中英語必修1Unit 1 Teenage Life-Discovering Useful Structure教案
（形容詞短語most beautiful的構(gòu)成形式為:副詞+形容詞，該短語在句中作定語修飾名詞bird）④A good friend is someone who makes you really happy.好朋友就是能讓你真正高興的人。（形容詞短語really happy的構(gòu)成形式為:副詞+形容詞，該短語在句中作賓語補足語）[即學(xué)即練]畫出下例句中的形容詞短語并指明構(gòu)成形式如:It is less cold today than it was yesterday.構(gòu)成形式: 副詞+形容詞（1）Our country is becoming more and more beautiful.（2）The road is long enough.（3）The medicine is good for stomach.三、副詞短語（Adverb Phrases）副詞短語:指以一個副詞為中心構(gòu)成的短語，在句中的功能相當于副詞，可以修飾動詞、形容詞或副詞。常見副詞短語的構(gòu)成形式有:（副詞）+副詞如: much more beautifully①He did his work here yesterday.他昨天在這里工作。（副詞短語here yesterday修飾動詞did）②Bill did the work very well.比爾做的這份工作很好。副詞短語very well修飾動詞did③We are all entirely responsible for our action（副詞短語all entirely, 修飾形容詞短語responsible for）
新人教版高中英語必修1Unit 2 Travelling Around-Reading and Thinking教案
Good expressions that students can choose to use: help the travelers choose which tour to take1. In my opinion, you could/might choose…, because you prefer to…2. …could be a perfect choice for you, for…3. As far as I am concerned, you would enjoy…, for…4. …would probably suit you, because you enjoy/love/hate doing…Step 5 Passage ConsolidationLanguage appreciation:1. You can then spend three days exploring the rainforest with a local guide and enjoying the plants and animals unique to the rainforest. 在接下來的三天里，您可以在當?shù)貙?dǎo)游的陪同下，深入雨林進行探索，欣賞雨林特有的動植物。本句主體結(jié)構(gòu)為spend some time doing sth. 2. Inca builders cut stones to exact sizes so that nothing was needed to hold walls together other than the perfect fit of the stones. 印加的建筑工人將石頭切割成精確的尺寸，僅僅憑著石頭間的完美契合，即可穩(wěn)固墻體。本句為so that引導(dǎo)的結(jié)果狀語從句。nothing與the perfect fit為并列成分; other than在句中意為“除了”。Step 6 HomeworkSuppose you will travel to Peru, write a short essay about your three-day tour plan.
新人教版高中英語必修1Welcome Unit-Discovering Useful Structures教案
II Learn the technical terms-2.1. What can be used as “Subject, Object, Predicative, Direct Object, Indirect Object and objective complement” in a sentence?2. What can be used as “adverbial” in a sentence?3. What can be used as “verb” in a sentence?Answers to questions 1-3:1. Nouns, pronouns and appellations can be used as “Subject, Object, Predicative, Direct Object, Indirect Object and Objective Complement”. Besides, adjectives can be used as “Predicative and Objective Complement” in a sentence.2. Adverbs and prepositional phrases can be used as “Adverbial”.3. Verbs with actual meaning can be used as “Verb” in a sentence. Auxiliary verbs alone cannot be used as “Verb” in a sentence.III Learn to recognize the sentence structures.1. SV structure. For Example:(1) A bird flies.S V(2) A monkey jumps.S V(3) A fish swims.S V√ In SV structures, verbs are “intransitive verbs”.2. SVO structure. For Example:(1) A sheep eats grass.S V O(2) They like bananas.S V O(3) He wants candy.S V O√ In SVO structures, verbs are “transitive verbs”.3. SP structure. For Example:(1) This is great.S P (2) He looks well.S P (3) She became a teacher.S P √ In SP structures, Predicatives are formed by “l(fā)ink verbs” and “adjectives or nouns”.√ link verbs: be, become, grow, look, feel, taste, etc.4. SV IO DO structure. For Example:(1) He asked me a question.S V IO DO(2) Danny wrote me a letter.S V IO DO(3) Billy brought Sam a kite.S V IO DO√ In SV IO DO structures, the verbs are transitive and are followed by two objectives – pronouns or nouns as Indirect Objective, and nouns as Direct Objectives.
新人教版高中英語必修1Welcome Unit-Discovering Useful Structures & Listening and Talking教案
常跟雙賓語的動詞有：（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＋謂＋賓＋賓補）特點：動詞雖然是及物動詞，但是只跟一個賓語還不能表達完整的意思，必須加上一個補充成分來補足賓語，才能使意思完整。 判斷原則：能表達成—賓語 是…/做…注：此結(jié)構(gòu)由“主語+及物的謂語動詞+賓語+賓語補足語”構(gòu)成。賓語與賓語補足語之間有邏輯上的主謂關(guān)系或主表關(guān)系，若無賓語補足語，則句意不夠完整?？梢杂米鲑e補的有：名詞，形容詞，副詞，介詞短語，動詞不定式，分詞等。如：He considers himself an expert on the subject.他認為自己是這門學(xué)科的專家。We must keep our classroom clean.我們必須保持教室清潔。I had my bike stolen.我的自行車被偷了。We invited him to come to our school.我們邀請他來我們學(xué)校。I beg you to keep secret what we talked here.我求你對這里所談的話保密。用it做形式賓語，而將真正的賓語放到賓語補足語的后面，以使句子結(jié)構(gòu)平衡，是英語常用的句型結(jié)構(gòu)方式。即：主語+謂語+it+賓補+真正賓語。如：We think it a good idea to go climb the mountain this Sunday.
新人教版高中英語必修1Welcome Unit-Reading for Writing教案
教學(xué)目標知識目標：讓學(xué)生更好理解如何恰當?shù)貙懸粋€人的信息介紹，并能讓學(xué)生熟練地使用一些寫作技能。能力目標：培養(yǎng)學(xué)生的寫作能力和團隊協(xié)作能力。情感目標：提升學(xué)生對寫作的興趣。教學(xué)重難點 教學(xué)重點：如何能讓學(xué)生更好地理解個人信息介紹。教學(xué)難點：如何能讓學(xué)生通過適當?shù)厥褂靡恍懽骷寄軄韺懸黄^好的個人信息介紹。教學(xué)準備 多媒體、黑板、粉筆一、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?
新人教版高中英語必修2Unit 1 Cultural Heritage-Reading and Thinking教案二
1. This section focuses on "Understanding how a problem was solved”, which is aimed to guide students to analyze and discuss the challenges and problems faced by cultural heritage protection during the construction of Aswan Dam, as well as the solutions. On the basis of understanding, students should pay attention to the key role of international cooperation in solving problems, and attach importance to the balance and coordination between cultural heritage protection and social and economic development. Students are encouraged to face challenges actively, be good at cooperation, and make continuous efforts to find reasonable ways and means to solve problems.2. Enable students to understand the main information and text structure of the reading text;3. Motivate students to use the reading strategy "make a timeline" according to the appropriate text genre;4. Enable students to understand how a problem was solved;5. Enable students to understand the value of protecting cultural heritage by teamwork and global community;1. Guide students to pay attention to reading strategies, such as prediction, self-questioning and scanning.2. Help students sort out the topic language about protecting cultural relics and understand the narrative characteristics of "time-event" in illustrative style3. Lead students to understand the value of protecting cultural heritage by teamwork and global community;
新人教版高中英語必修2Unit 1 Cultural Heritage-Reading For Writing教案
This report is short, concise and has typical news content and language features. The title uses the verb phrases, embodying the characteristics of being concise and general. The introduction is the first two sentences in the first paragraph, describing the general situation of the cultural heritage protection project, including time, place, characters, events and other news elements, so that readers can see the main points of the news report at a glance. The main body is the second and third paragraphs, which report the important historical and cultural value of Mogao Grottoes and the production of Mogao Grottoes Material digital photos, which are of great significance to the inheritance of historical culture and the promotion of international cultural understanding, exchange and cooperation. Direct citation is used in the report, as well as background introduction and other news writing techniques.1. Get students to have a good understanding of some features about a news report by reading the text.2. Instruct students to write a summary about a news report properly using some newly acquired writing skills in this period.3. Develop students’ writing and cooperating abilities.4. Strengthen students’ great interest in writing discourses.1. Stimulate students to have a good understanding of how to a summary about a news report 2. Cultivate students to write a news report properly and concisely.Step 1: Lead in Do you think it is necessary for us to circulate our cultural heritage to the world? Why or why not?Do we need to learn more about other countries’ cultural heritage? Why or why not?Step 2: Read to discover details concerning the main body of the news report.
新人教版高中英語必修2Unit 3 The Internet-Discovering Useful Structure教案二
This teaching period mainly deals with grammar “The Present Perfect Passive Voice.” To begin with, teachers should lead students to revise what they have learned about the Present Perfect Passive Voice. And then, teachers move on to stress more special cases concerning this grammar。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 exercises. 1. Guide students to review the basic usages of the Present Perfect Passive Voice2. Lead students to learn to use some special cases concerning the Present Perfect Passive Voice flexibly.2. Enable students to use the basic phrases structures flexibly.3. Strengthen students’ great interest in grammar learning.1. Help students to appreciate the function of the Present Perfect Passive Voice in a sentence2. Instruct students to write essays using the proper the Present Perfect Passive Voice.觀察下列句子特點，總結(jié)共同點。1．(教材P28)Much has been written about the wonders of the World Wide Web．2．(教材P28)But the Internet has done much more for people than simply make life more convenient．3．(教材P28)Many people have been helped by the club．4．(教材P28)She no longer feels lonely, and her company has become quite successful．5．(教材P32)Today I thought I’d blog about a question that has been asked many times—how do you stay safe online and avoid bad experiences on the Internet?
新人教版高中英語必修2Unit 3 The Internet-Listening &Speaking＆Talking教案二
From the pictures in the text and the title--- choose the best app, we can know that this part is about how to save money by using apps.Step 2 While-listening1. Laura and Xiao Bo are talking about apps. Listen to their conversation and find out what apps they want.Xiao Bo is looking for a(n) exercise app to help him get in shape.Laura would like an app for getting rich and another that will make her grades better.2. Listen again. Are the sentences true T or false F?1). Both of Xiao Bo's apps keep track of the steps he takes._____2). Xiao Bo's second app can help him make a fitness plan._____3). Laura needs an app that will help her get discounts.______4). Laura needs an app that will add money to her bank account._______F T F T3. Listen once more and tick the sentence you hear. Underline the words used to express predictions, guesses, and beliefs.Predictions, Guesses, and Beliefs________It might help me walk more.________My guess is that it wouldn't work.________I imagine this app would help me get fit faster________I suppose that would be good.________I guess you could save a little with this app.________I suppose there would be some problems, too.________I believe this app could help me get thinner.
新人教版高中英語必修2Unit 5 Music-Listening and Speaking教案
This lesson is about music. Students can classify the types of music through the instruments and its sound and can talk about their preferences about music, even join some activities and play a role in them according to their musical talents. On the basis, they are guided to use the languages to express their preferences and some plosive sounds and their rules.1. Classify the music types through the instruments and its sound.2. Listen and understand what the speakers’ preferences are and the reasons; talk about their own preferences and give their own reasons, using these sentences: “What kind of music do you like? And why? “ “Because it makes/gives me energy/peaceful.../touches my heart...”.3. Learn some plosives and the rules.4. Join some activities and play a role in them according to the talents. 1. Listen and understand what the speakers’ preferences are and the reasons;2. talk about their own preferences and give their own reasons, using these sentences: “What kind of music do you like? And why? “ “Because it makes/gives me energy/peaceful.../touches my heart...”.3. Learn some plosives and incomplete plosives and its rules.Step 1 Lead inPoint at the pictures on P50 and ask Q1: What are the people doing in the pictures below?Q2: What kind of music they are?Then play the MP3s one by oneStep 2 ListeningTask 1: A reporter from the school newspaper is interviewing students about music. Listen to the interviews. Draw lines between the words to make complete sentences. Some words will not be used.
新人教版高中英語必修2Unit 5 Music-Reading for Writing教案二
The Internet celebrity Gao Yifeng. Years ago, he owned 5 companies and the staffs over 1,000, but during the economy crisis, he became nothing but debt. He was so worried that his hair became white overnight. There was a time when he wanted to killed himself. But after listening to the song Start Over by Liu Huan, he decided to cheer himself up. He started a steamed bun shop and gradually became a national chain shops. Now he became successful again.Walter Haddon said, “Music is the medicine of a troubled mind.” Music contains such a pleasant and inspiring force. Music gave him courage and bravery. When he listened to the song, it made his spirit fly like a kite in the wind. Music gave him strength and brought him relief. It was the rock I leant on to become strong and to get through those hard times. I hope none of us have to go through the same kind of suffering that he did. At the same time, we all go through various periods when we feel sad or alone. During those times, music can help us in the same way that it helped him. I hope we all will somehow begin to treasure music and make it a part of our life. Thank you for your listening !5.Revise your writing each other.Does he/she explain how music has changed his/her/someone else’s life?Are some of the rhetorical devices included and used properly ?Does he/she talk about how music makes him/her/someone feel?Is the first word in each sentences capitalised?Does he/she use correct punctuation ?
人教版高中地理必修2城市化精品教案
1．改善城市環(huán)境：治理河流、控制大氣污染物、大力加強綠化建設(shè)為改善城市環(huán)境，上海市全面展開對大氣、河流、噪聲等多方面的治理工作。如蘇州河的治理、降低城市污染物濃度、加強綠化建設(shè)，截止1990年，市區(qū)綠化覆蓋率達到20.3%。2．改善城市交通、改善居住條件擴寬主干道，修建環(huán)城公路，修筑了南浦大橋和揚浦大橋，新修城市高架公路和地鐵，改造住宅。3．控制城市規(guī)模建立衛(wèi)星城，開發(fā)新區(qū)，有效地控制城市中心區(qū)的規(guī)模。思考：什么時候許多國家采取措施保護和改善城市環(huán)境？你認為可以采取哪些措施來保護和改善城市環(huán)境？上海市保護和改善城市環(huán)境的措施：上海的衛(wèi)星城有哪些？上海新建了哪個新區(qū)？目前浦東新區(qū)在上海的地位如何？建立衛(wèi)星城和開發(fā)新區(qū)可以起到什么作用？上海市為改善交通條件，做了哪些工作？
人教版高中地理必修3第一章第一節(jié)地理環(huán)境對區(qū)域發(fā)展的影響教案
教學(xué)重點：1．比較分析地理環(huán)境差異對區(qū)域發(fā)展的影響2．分析區(qū)域不同發(fā)展階段地理環(huán)境的影響教學(xué)難點：1．區(qū)域的特征2．以兩個區(qū)域為例，比較分析地理環(huán)境差異對區(qū)域發(fā)展的影響教具準備：有關(guān)掛圖等、自制圖表等教學(xué)方法：比較法、案例分析法、圖示法等教學(xué)過程：一、區(qū)域1．概念：區(qū)域是地球表面的空間單位，它是人們在地理差異的基礎(chǔ)上，按一定的指標和方法劃分出來的。2．特征：（1）區(qū)域具有一定的區(qū)位特征：不同的區(qū)域，自然環(huán)境有差異，人類活動也有差異。同一區(qū)域，區(qū)域內(nèi)部的特定性質(zhì)相對一致，如濕潤區(qū)的多年平均降水量都在800毫米以上。但自然環(huán)境對人類活動的影響隨著其他條件的變化而不同。（2）具有一定的面積、形狀和邊界。①有的區(qū)域的邊界是明 確的，如行政區(qū)；②有的區(qū)域的邊界具有過渡性質(zhì)，如干濕地區(qū)。