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高中數(shù)學(xué)人教版必修二直線的點(diǎn)斜式方程教案
【教學(xué)目標(biāo)】知識(shí)目標(biāo)：理解直線的點(diǎn)斜式方程、斜截式方程、橫截距、縱截距的概念；掌握直線的點(diǎn)斜式方程、斜截式方程的確定．能力目標(biāo)：通過求解直線的點(diǎn)斜式方程和斜截式方程，培養(yǎng)學(xué)生的數(shù)學(xué)思維能力與數(shù)形結(jié)合的數(shù)學(xué)思想．情感目標(biāo)：通過學(xué)習(xí)直線的點(diǎn)斜式方程和斜截式方程，體會(huì)數(shù)形結(jié)合的直觀感受．【教學(xué)重點(diǎn)】直線的點(diǎn)斜式方程、斜截式方程的確定．【教學(xué)難點(diǎn)】直線的點(diǎn)斜式方程、斜截式方程的確定．
高中數(shù)學(xué)人教版必修二直線的點(diǎn)斜式方程教案
【教學(xué)重點(diǎn)】直線的點(diǎn)斜式方程、斜截式方程的確定．【教學(xué)難點(diǎn)】直線的點(diǎn)斜式方程、斜截式方程的確定．【教學(xué)過程】1、對(duì)特殊三角函數(shù)進(jìn)行鞏固復(fù)習(xí)；表1 內(nèi)特殊三角函數(shù)值 不存在圖1 特殊三角形2、鞏固復(fù)習(xí)直線的傾斜角和斜率相關(guān)內(nèi)容；直線的傾斜角：，；直線的斜率： ， ；設(shè)點(diǎn)為直線l上的任意兩點(diǎn)，當(dāng)時(shí)，
人教版高中地理必修1氣壓帶和風(fēng)帶教案
知識(shí)和技能 1、指導(dǎo)學(xué)生繪制氣壓帶和風(fēng)帶分布示意圖，從中分析大氣運(yùn)動(dòng)的規(guī)律性，并培養(yǎng)和提高學(xué)生繪制原理形成示意圖的地理技能。2、運(yùn)用海陸熱力差異原理進(jìn)行解釋，加強(qiáng)學(xué) 生對(duì)半球冬夏季氣壓中心的形成和分布的理解解。3、使學(xué)生理解氣壓帶和風(fēng)帶對(duì)氣候的影響。過程與方法 1、通過三圈環(huán)流模擬演示，培養(yǎng)學(xué)生的空間思維能力。2、通過對(duì)海陸分布對(duì)大氣環(huán)流影響的兩圖示的對(duì)比分析，讓學(xué)生讀圖思考?xì)鈮簬?、風(fēng)帶的分布規(guī)律和原因。3、利用成因分析法引導(dǎo)學(xué)生探究氣壓帶和風(fēng)帶對(duì)氣候的影響機(jī)制。情感、態(tài)度與價(jià)值觀1、培養(yǎng)學(xué)生辯證唯物主義觀。2、培養(yǎng)學(xué)生理論聯(lián)系實(shí)際的能力。教學(xué)重點(diǎn)1、氣壓帶和風(fēng)帶的分布。2、北半球氣壓中心冬夏分布及對(duì)氣候的影響。3、氣壓帶和風(fēng)帶對(duì)氣候的影響。
人教版高中地理必修1水資源的合理利教案
知識(shí)和技能 1、了解水資源的概念和衡量水資源的具體指標(biāo)。2、運(yùn)用圖表說明全球和我國(guó)水資源的時(shí)空分布不 均的特點(diǎn)。3、說明在不同生產(chǎn)力條件下，水資源的數(shù)量和質(zhì)量對(duì)人類生存和發(fā)展的意義。4、樹立水資源可持續(xù)利用的觀念，了解解決水資源供需矛盾的策略。過程與方法 1、自組學(xué)習(xí)。2、案例分析法3、合作探究教學(xué)法。情感、態(tài)度與價(jià)值觀1、辯證的看待人類對(duì)水資源的利用情況。2、樹立資源利用的可持續(xù)發(fā)展觀點(diǎn)。教學(xué)重點(diǎn)1、水資源對(duì)人類生存和發(fā)展的意義。2、合理利用水資源。教學(xué)難點(diǎn)說明在不同的生產(chǎn)力條件下，自然資源的數(shù)量、質(zhì)量對(duì)人類生存與發(fā)展的意義。教具、資料多媒體課件課時(shí)安排1課時(shí)教學(xué)過程：一、水資源及其分布 1．概念：廣義——水圈內(nèi)的水量總體狹義——陸地上的淡水資源（即通常所指）
人教版高中歷史必修1抗日戰(zhàn)爭(zhēng)教案
【備課資料】百團(tuán)大戰(zhàn)八路軍從8月20日起，在華北敵后出動(dòng)105個(gè)團(tuán)，約40萬兵力，在2500公里長(zhǎng)的戰(zhàn)線上，發(fā)動(dòng)了規(guī)模最大的“以徹底破壞正太路若干要隘，消滅部分?jǐn)橙私財(cái)嘣摼€交通”為目的的舉世聞名的“百團(tuán)大戰(zhàn)”。八路軍提出“不留一根鐵軌、不留一根枕木、不留一個(gè)車站、不留一個(gè)碉堡、不留一座橋梁”的口號(hào)，“讓敵人用腳同我們賽跑”，“讓敵人用牛驢搬炮彈、飛機(jī)大炮”。八路軍展開攻堅(jiān)戰(zhàn)，端掉敵一系列據(jù)點(diǎn)。據(jù)有關(guān)資料記載，從8月20日到12月5日，在歷時(shí)三個(gè)半月的“百四大戰(zhàn)”中，我軍共進(jìn)行大小戰(zhàn)斗1824次，斃傷日偽軍25800余人，俘日偽軍18600余人，繳獲了大批武器、彈藥和軍用食品等；破壞鐵路470多公里，公路1500多公里，橋梁、車站、隧道等260余處，使正太鐵路停運(yùn)月余；攻克日偽據(jù)點(diǎn)2993個(gè)，鞏固和擴(kuò)大了抗日軍民占領(lǐng)區(qū)。
人教版高中歷史必修1馬克思主義的誕生教案
【合作探究】分析說明巴黎公社是無產(chǎn)階級(jí)建立政權(quán)的第一次偉大嘗試（1）從巴黎公社產(chǎn)生的情況來看，它是在巴黎無產(chǎn)階級(jí)通過暴力革命，推翻反動(dòng)的資產(chǎn)階級(jí)政府的基礎(chǔ)上，通過普選建立起的新型國(guó)家。（2）從巴黎公社的政權(quán)的領(lǐng)導(dǎo)人和階級(jí)成分來看，通過民主選舉產(chǎn)生的公社委員會(huì)的成員，大多數(shù)是工人，其中有些委員會(huì)雖然從事不同的職業(yè)，有的不是馬克思主義者，但公認(rèn)是公認(rèn)階級(jí)的代表。（3）從巴黎公社實(shí)行的政策措施來看，這是最能說明公社性質(zhì)的一個(gè)方面。公社在建設(shè)新政權(quán)的同時(shí)，打碎資產(chǎn)階級(jí)國(guó)家機(jī)器，做出建立無產(chǎn)階級(jí)專政國(guó)家機(jī)器的偉大嘗試。公社的社會(huì)經(jīng)濟(jì)措施和其他民主措施，都在一定程度上體現(xiàn)了它的無產(chǎn)階級(jí)性質(zhì)。沒收逃亡資本家的工廠，觸及資本主義私有制，具有明顯的無產(chǎn)階級(jí)性質(zhì)。
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(bǔ)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(gè)副詞為中心構(gòu)成的短語，在句中的功能相當(dāng)于副詞，可以修飾動(dòng)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(dòng)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(dòng)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 1 Teenage Life-Reading and Thinking教案
【教材分析】The topic of this unit is about teenage life, which belongs to the theme context of “humans and oneself”.As teenagers who shoulder the responsibility of “Chinese great dream”, they must fully know themselves, including their strengths, weaknesses and challenges etc. They are supposed to improve themselves continuously and readily study their subjects, and thus foster their strategies and confidence in lifelong studies.This period is entitled the freshmen challenges, which mainly concerns some big challenges for new students in Senior high school. In this period, a teacher should lead students to find out what their challenges are and guide them to figure out how to crack the challenges and better themselves. More importantly, a teacher should instruct students to absorb new language points and appreciate the language. Besides, a teacher must instruct students to acquire some skills concerning reading efficiently and inspire them to talk more about their new school life, especially their new problems and solutions both at school and in life.【教學(xué)目標(biāo)與核心素養(yǎng)】1. Enable students to acquire the basic usage of the new words and expressions concerning the freshmen challenges and learn to use them flexibly.2. Enable students to have a good understanding of the freshmen challenges in the new senior high school which is quite different from junior middle school.3. Develop students’ sense of cooperative learning and individual thinking capability. 4. Develop students’ different learning skills to solve different reading comprehensive problems.
新人教版高中英語必修1Unit 4 Natural Disasters- Reading for writing教案
①標(biāo)題——標(biāo)題應(yīng)當(dāng)簡(jiǎn)潔明了。②導(dǎo)語——導(dǎo)語是消息開頭的第一段或第一句話，簡(jiǎn)明扼要地揭示出消息的核心內(nèi)容。③主體——主體是消息的主要部分，要用充足的事實(shí)表現(xiàn)主題，對(duì)導(dǎo)語的內(nèi)容作進(jìn)一步的展開和闡述。④結(jié)束語——通常是對(duì)全文內(nèi)容進(jìn)行概括性的總結(jié)。3. 新聞報(bào)道增分句子（1）陳述事實(shí)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.地震發(fā)生在一個(gè)涼爽的秋夜。大量的建筑物倒塌，道路被毀,許多人無家可歸。③With the help of the rescue team, people who were the trapped in the flood were saved.在救援隊(duì)的幫助下，困在洪水中的人們得救了。（2）陳述觀點(diǎn)常用的句型:①Clearly/Obviously/In my opinion/It seemed that people were shocked.顯然/在我看來/似乎人們震驚了。②The whole city was in ruins after the earthquake.地震后整個(gè)城市成了一片廢墟。（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.
新人教版高中英語必修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.【教學(xué)目標(biāo)與核心素養(yǎng)】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.【教學(xué)重難點(diǎn)】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.【教學(xué)過程】Step1: 語法知識(shí)呈現(xiàn)定語從句（一）—關(guān)系代詞的用法在復(fù)合句中, 修飾名詞或代詞的從句叫定語從句。定語從句通常由關(guān)系代詞或關(guān)系副詞引導(dǎo)，說明事物的具體信息，從句位于被修飾詞之后。被定語從句修飾的詞叫先行詞，引導(dǎo)定語從句的詞叫關(guān)系詞，關(guān)系詞指代先行詞，并在定語從句中充當(dāng)成分。關(guān)系詞有兩種：關(guān)系代詞who, whom ,whose, that, which, as和關(guān)系副詞when, where, why。
新人教版高中英語必修1Unit 4 Natural Disasters-Listening and Speaking教案
【教材分析】高考聽力材料的選用非常重視語言真實(shí)性和交際性的原則，語言材料一般來源于實(shí)際生活，對(duì)話的內(nèi)容大都取材于日常生活，即衣、食、住、行、工作、學(xué)習(xí)、天氣、生活環(huán)境等話題，可分為校園、公共場(chǎng)所、家庭等方面，如: shopping, finding the way, doing one’s homework, seeing a doctor, making a phone call, weather report, asking for different kinds of information等。新教材的特點(diǎn)就是利用生活中真實(shí)文本，只是降低難度，讓學(xué)生注重語言的應(yīng)用，將是我們高考把握方向的重要因素?！窘虒W(xué)目標(biāo)與核心素養(yǎng)】學(xué)習(xí)能力目標(biāo)：在聽力當(dāng)中，學(xué)生應(yīng)該有效規(guī)劃學(xué)習(xí)方法，選擇恰當(dāng)?shù)牟呗耘c方法。這節(jié)課的訓(xùn)練目標(biāo)是讓學(xué)生有正確的預(yù)測(cè)和抓住問題的關(guān)鍵信息，從而用心去聽來找尋關(guān)鍵信息。根據(jù)生活中實(shí)際情況和高考常見語境，我們不難發(fā)現(xiàn)提前預(yù)測(cè)和抓住題干中的w很重要，即what, where, when, why等等。
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.
新人教版高中英語必修1Welcome Unit-Discovering Useful Structures & Listening and Talking教案
常跟雙賓語的動(dòng)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(bǔ)）特點(diǎn)：動(dòng)詞雖然是及物動(dòng)詞，但是只跟一個(gè)賓語還不能表達(dá)完整的意思，必須加上一個(gè)補(bǔ)充成分來補(bǔ)足賓語，才能使意思完整。 判斷原則：能表達(dá)成—賓語 是…/做…注：此結(jié)構(gòu)由“主語+及物的謂語動(dòng)詞+賓語+賓語補(bǔ)足語”構(gòu)成。賓語與賓語補(bǔ)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(bǔ)足語，則句意不夠完整?？梢杂米鲑e補(bǔ)的有：名詞，形容詞，副詞，介詞短語，動(dòng)詞不定式，分詞等。如：He considers himself an expert on the subject.他認(rèn)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(qǐng)他來我們學(xué)校。I beg you to keep secret what we talked here.我求你對(duì)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(bǔ)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(bǔ)+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1Unit 5 Languages Around the World-Reading and Thinking教案
【教材分析】本節(jié)課是高中英語第一冊(cè)的最后一個(gè)單元的閱讀和思考部分，文章難度明顯增加，體現(xiàn)在以下幾個(gè)方面：文章題材是說明文，比較難理解；話題生疏，涉及到歷史等知識(shí)；生詞量增大，而且在語境中理解詞匯的要求提高。面對(duì)這些，教師的難度和高度也要有所提升，通過探討說明順序，了解背景知識(shí)等幫助他們找到說明文閱讀的方法。【教學(xué)目標(biāo)與核心素養(yǎng)】1. 文化意識(shí)目標(biāo)新課程中指出，文化意識(shí)是對(duì)中外文化的理解和對(duì)優(yōu)秀文化的認(rèn)同。文化意識(shí)的的培養(yǎng)有助于學(xué)生增加國(guó)家認(rèn)同和家國(guó)情懷，成為有文明素養(yǎng)和社會(huì)責(zé)任感的人。我們這個(gè)單元很好體現(xiàn)了這一點(diǎn)，通過了解漢字書寫的體系和發(fā)展，學(xué)生可以有一種文化自豪感，同時(shí)也能夠幫助學(xué)生深入挖掘這篇文章，從而想到更多和中國(guó)文化相關(guān)的方面。2. 學(xué)習(xí)能力目標(biāo)
新人教版高中英語必修1Unit 5 Languages Around the World-Reading for Writing教案
Step 3: Read to sum upRead it again and sum up the problems of the three students, and then write down the advice that was given from others.Step 4: Work in pairs. List your learning problems in English and brainstorm some useful advice.Useful expressions ? I don't know how to…... Is a big difficulty for me. I cannot ...? You might try …. It's very important to…? I have no idea how/what .My biggest problem is .... ? I (also) have trouble with. My advice is …. This worked for me.? l cannot understand the teachers’ English in class.Step 5 Homework：為提高我校學(xué)生的英語口語水平，我們將舉辦英語演講比賽(English- speaking contest)，請(qǐng)你根據(jù)下面的信息，以學(xué)生會(huì)(the Students‘ Union)的名義寫一份海報(bào)，歡迎全校同學(xué)參加，屆時(shí)特邀本校美籍教師史密斯先生頒獎(jiǎng)。? 報(bào)名時(shí)間 9月30日以前(報(bào)名:signup)? 報(bào)名地點(diǎn) 學(xué)生會(huì)辦公室? 比賽時(shí)間 10月9日晚7:00~9:00? 比賽地點(diǎn) 學(xué)校大會(huì)議室? 獎(jiǎng)勵(lì) 前8名
新人教版高中英語必修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.
新人教版高中英語必修1Welcome Unit-Reading for Writing教案
教學(xué)目標(biāo)知識(shí)目標(biāo)：讓學(xué)生更好理解如何恰當(dāng)?shù)貙懸粋€(gè)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(biāo)：培養(yǎng)學(xué)生的寫作能力和團(tuán)隊(duì)協(xié)作能力。情感目標(biāo)：提升學(xué)生對(duì)寫作的興趣。教學(xué)重難點(diǎn) 教學(xué)重點(diǎn)：如何能讓學(xué)生更好地理解個(gè)人信息介紹。教學(xué)難點(diǎn)：如何能讓學(xué)生通過適當(dāng)?shù)厥褂靡恍懽骷寄軄韺懸黄^好的個(gè)人信息介紹。教學(xué)準(zhǔn)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?
人教版高中地理必修1大規(guī)模的海水運(yùn)動(dòng)教案
4．海洋污染（1）閱讀書本P64，由學(xué)生歸納：（2）展示圖片資料：“威望號(hào)油輪泄漏事故”【討論】石油污染將對(duì)該海區(qū)的生態(tài)環(huán)境造成怎樣的影響？【小結(jié)】本節(jié)課我們從四個(gè)方面了解了洋流對(duì)地 理環(huán)境和人類活動(dòng)的影響，重點(diǎn)學(xué)習(xí)洋流對(duì)氣候和對(duì)漁場(chǎng)形成的影響。同學(xué)們聽說過“厄爾尼諾”現(xiàn)象嗎？“厄爾尼諾”現(xiàn)象會(huì)影 響秘魯漁場(chǎng)的漁獲量；也會(huì)對(duì)氣候產(chǎn)生影響，導(dǎo)致全球氣候異常。『探究“神奇的厄爾尼諾”現(xiàn)象』學(xué)習(xí)小組交流【小結(jié)】“厄爾尼諾”現(xiàn)象還有許多不解之謎，其中之一是形成原因，尚未能解釋清楚。有人認(rèn)為是南半球東南信風(fēng)減弱造成的，也有人認(rèn)為是大氣環(huán)流減弱造成的結(jié)果；且“厄爾 尼諾”現(xiàn)象發(fā)生有沒有自身的規(guī)律？發(fā)生周期長(zhǎng)短受什么制約？等等，這些謎團(tuán)等待我們?nèi)ヒ灰唤忾_。
人教版高中地理必修1常見天氣系統(tǒng)教案
知識(shí)和技能 ⑴從圖片和簡(jiǎn)易圖中，了解氣團(tuán)（冷氣團(tuán)、暖氣團(tuán)）的概念；鋒的概念與分類；低壓（氣旋）、高壓（反氣旋）、高壓脊、低壓槽的概念。⑵從氣溫、氣壓、濕度、降水、風(fēng)等幾方面分析各種天氣系統(tǒng)的形成及其氣流特點(diǎn)，并綜合出各種天氣系統(tǒng)控制下的天氣狀況過程與方法 ⑴讓學(xué)生能閱讀和簡(jiǎn)單分析天氣圖，解釋天氣變化現(xiàn)象；⑵用案例說明氣象災(zāi)害發(fā)生的原因和危害；⑶結(jié)合我國(guó)常見的天氣系統(tǒng)說明其對(duì)人們生產(chǎn)和生活的影響情感、態(tài)度與價(jià)值觀激發(fā)學(xué)生探究天氣的形成和變化的興趣和動(dòng)機(jī)，培養(yǎng)學(xué)生求真、求實(shí)的科學(xué)態(tài)度，提高地理審美情趣教學(xué)重點(diǎn)1.鋒面系統(tǒng)。(鋒面系統(tǒng):一是要區(qū)別冷暖鋒的成因，二是要掌握鋒面兩側(cè)的氣壓、溫度、濕度、風(fēng)和天氣差異)2.低壓、高壓系統(tǒng)。（要掌握其成因、氣壓特征、氣流特征及其天氣特點(diǎn)四個(gè)方面。）