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北師大初中八年級數(shù)學下冊因式分解教案
解：設另一個因式為2x2－mx－k3，∴(x－3)(2x2－mx－k3)＝2x3－5x2－6x＋k，2x3－mx2－k3x－6x2＋3mx＋k＝2x3－5x2－6x＋k，2x3－(m＋6)x2－(k3－3m)x＋k＝2x3－5x2－6x＋k，∴m＋6＝5，k3－3m＝6，解得m＝－1，k＝9，∴k＝9，∴另一個因式為2x2＋x－3.方法總結(jié)：因為整式的乘法和分解因式互為逆運算，所以分解因式后的兩個因式的乘積一定等于原來的多項式．三、板書設計1．因式分解的概念把一個多項式轉(zhuǎn)化成幾個整式的積的形式，這種變形叫做因式分解．2．因式分解與整式乘法的關系因式分解是整式乘法的逆運算．本課是通過對比整式乘法的學習，引導學生探究因式分解和整式乘法的聯(lián)系，通過對比學習加深對新知識的理解．教學時采用新課探究的形式，鼓勵學生參與到課堂教學中，以興趣帶動學習，提高課堂學習效率.
北師大初中八年級數(shù)學下冊中心對稱教案
探究點三：作中心對稱圖形如圖，網(wǎng)格中有一個四邊形和兩個三角形．(1)請你畫出三個圖形關于點O的中心對稱圖形；(2)將(1)中畫出的圖形與原圖形看成一個整體圖形，請寫出這個整體圖形對稱軸的條數(shù)；這個整體圖形至少旋轉(zhuǎn)多少度能與自身重合？解：(1)如圖所示；(2)這個整體圖形的對稱軸有4條；此圖形最少旋轉(zhuǎn)90°能與自身重合．三、板書設計1．中心對稱如果把一個圖形繞著某一點旋轉(zhuǎn)180°，它能夠與另一個圖形重合，那么就說這兩個圖形關于這個點對稱或中心對稱．2．中心對稱圖形把一個圖形繞著某一點旋轉(zhuǎn)180°，如果旋轉(zhuǎn)后的圖形能與原來的圖形重合，那么這個圖形叫做中心對稱圖形．教學過程中，強調(diào)學生自主探索和合作交流，結(jié)合圖形，多觀察，多歸納，體會識別中心對稱圖形的方法，理解中心對稱圖形的特征.
北師大初中八年級數(shù)學下冊旋轉(zhuǎn)作圖教案
解析：整個陰影部分比較復雜和分散，像此類問題通常使用割補法來計算．連接BD、AC，由正方形的對稱性可知，AC與BD必交于點O，正好把左下角的陰影部分分成(Ⅰ)與(Ⅱ)兩部分(如圖②)，把陰影部分(Ⅰ)繞點O逆時針旋轉(zhuǎn)90°至陰影部分①處，把陰影部分(Ⅱ)繞點O順時針旋轉(zhuǎn)90°至陰影部分②處，使整個陰影部分割補成半個正方形．解：如圖②，把陰影部分(Ⅰ)繞點O逆時針旋轉(zhuǎn)90°至陰影部分①處，把陰影部分(Ⅱ)繞點O順時針旋轉(zhuǎn)90°至陰影部分②處，使原陰影部分變?yōu)槿鐖D②的陰影部分，即正方形的一半，故陰影部分面積為12×10×10＝50(cm2)．方法總結(jié)：本題是利用旋轉(zhuǎn)的特征：旋轉(zhuǎn)前、后圖形的形狀和大小不變，把圖形利用割補法補全為一個面積可以計算的規(guī)則圖形．三、板書設計1．簡單的旋轉(zhuǎn)作圖2．旋轉(zhuǎn)圖形的應用教學過程中，強調(diào)學生自主探索和合作交流，經(jīng)歷觀察、歸納和動手操作，利用旋轉(zhuǎn)的性質(zhì)作圖.
四年級下冊綜合實踐活動教學計劃及教案
一、教材分析 1、教材內(nèi)容及所處地位綜合實踐活動是在新一輪基礎教育課程改革中應運而生的新型課程。所謂綜合實踐活動，主要指以學生的興趣和直接經(jīng)驗為基礎，以與學生學習生活和社會生活密切相關的各類現(xiàn)實性、綜合性、實踐性問題為內(nèi)容，以研究性學習為主導學習方式，以培養(yǎng)學生的創(chuàng)新精神、實踐能力及體現(xiàn)對知識的綜合運用為主要目的一類新型課程。具有以下特點： 1、基于興趣與直接經(jīng)驗。2、回歸生活世界。3、立足實踐。4、著眼創(chuàng)新。5、以研究性學習為主導學習方式：（1）以轉(zhuǎn)變學生的學習方式為出發(fā)點。（2）強調(diào)知識的聯(lián)系和綜合運用。（3）注重過程。（4）強調(diào)開放。（5）重視師生互動。四年級下冊綜合實踐活動課程要培養(yǎng)學生對生活、學習的積極態(tài)度，使他們具備一定的交往合作能力、觀察分析能力、動手操作能力；要讓他們初步掌握參與社會實踐的方法，信息資料的搜集、分析和處理問題的方法以及研究探索的方法；使學生形成合作、分享、積極進取等良好的個性品質(zhì)，成為創(chuàng)新生活的小主人。2、單元內(nèi)容分析本教材包括?方法與指導?和?活動與探究?兩部分內(nèi)容， ?方法與探究? 主要是讓學生掌握如何進行采訪，通過一系列活動，掌握采訪的準備、注意事項、具體實施，及最后的交流總結(jié)，培養(yǎng)學生交往能力。 ?活動與探究?包括六個主題，主題一我們身邊的標志，通過讓學生認識標志，體會含義。學會分類，最后學會制作標志，循序漸進，蘊含了創(chuàng)新、守規(guī)、審美等能力的培養(yǎng)；主題二早餐與健康通過談論，調(diào)查、分析討論培養(yǎng)學生交流總結(jié)能力，樹立健康生活意識；主題三，有趣的絲網(wǎng)花，通過制作培養(yǎng)學生合作、審美、動手能力；主題四巧手做風箏繼續(xù)對學生進行培養(yǎng);主題五植物的扦插與嫁接，與現(xiàn)實生活聯(lián)系密切，通過活動掌握方法，體驗快樂，體驗勞動的樂趣；主題六爭做小小志愿者，通過了解體驗志愿者的活動，豐富閱歷，培養(yǎng)學生的服務意識，自身獲得提升與發(fā)展。教材的重點、難點：重點：學會交流，提升能力；認識各種標志，學會制作；學會健康的生活；通過制作絲網(wǎng)花、風箏、植物的扦插于嫁接，學會制作，提高動手能力，通過體驗小小志愿者，提高服務意識。難點：教學中讓學生親身參與、主動實踐，在實踐中綜合運用所學知識解決各種實際問題，提高解決實際問題的能力。學習基礎：四年級學生已具備了一定的實踐能力，因此要逐步培養(yǎng)學生一些探究問題的方法，提高學生的動手意識，能夠從生活和學習中挖掘自己感興趣的活動主題，能夠試著和同學展開小組合作學習，在有效的活動中不斷提高學生的動手與創(chuàng)新的潛能。
二年級數(shù)學下冊第二單元表內(nèi)除法教案
一、教材簡析 本單元教學內(nèi)容主要有：除法的初步認識、用2～6的 乘法口訣求商，解決實際問題。除法的初步認識分兩個層次：第一，以生活中常見的“每份同樣多”的實例合活動情境，讓學生建立“平均分”概念。第二，在“平均分”概念的基礎上引出除法運算，說明除法算式各部分的名稱。用口訣求商遵循由易到難的原則。解決問題是結(jié)合除法計算出現(xiàn)的。首先在除法的初步認識教學中 孕伏解決問題的內(nèi)容。然后在用2～6的乘法口訣求商之后編入了解決有關平均分的實際問題和需要用乘法和除法兩步計算解決簡單實際問題的內(nèi)容。
冀教版二年級數(shù)學下冊排列問題教案
1．自學文本出示書中情境圖：有21架飛機要參加飛行表演，怎樣飛呢？想請同學們幫忙設計編組方案，下面小組同學合作，用學具擺一擺，設計出自己的編組方案，看哪個小組設計的方案最多？學生小組合作，邊擺學具邊說方案。2．交流研討哪組想到前面來匯報一下你們制定的飛行方案？（不必強調(diào)平均分，如有小組同學說出每組有7（3）架，可以分成3（7）組，或每7（3）架一組，可以分成3（7）組，老師在給予肯定的同時可以問其它小組擺法一樣嗎？之后板書算式：21÷7=3，21÷3=7。如果學生沒說出平均分，老師可引導說：有時表演的每組也可同樣多)
一年級朗文教材下冊1B Chapter 1 B
l 通過學習該單元的內(nèi)容，學會正確讀出小動物的單詞及其復數(shù)形式。如：dog(s ), cat(s), bird(s), rabbit(s), hamster(s), turtle(s);l 掌握基本句型： What are these ? They are .... What are those ? They are ....l 學會用英語來描述自己喜歡的寵物。l 培養(yǎng)學生仔細觀察圖片，獲取關鍵信息的能力；l 培養(yǎng)辯證思維及策劃、合作和交流的能力。l 激發(fā)學習英語的興趣，同時培養(yǎng)積極參與、樂于合作、大方交流的情感態(tài)度。
一年級朗文下冊1B 教材 Chapter 1 A
l 通過學習該單元的內(nèi)容，學會正確讀出小動物的單詞如：dog cat bird rabbit hamster turtle;l 掌握基本句型： What is this ? It is a .... What isthat ? It is a .....l 學會用英語來描述自己喜歡的寵物。l 培養(yǎng)學生仔細觀察圖片，獲取關鍵信息的能力；l 培養(yǎng)辯證思維及策劃、合作和交流的能力。l 激發(fā)學習英語的興趣，同時培養(yǎng)積極參與、樂于合作、大方交流的情感態(tài)度。
人教版新課標小學數(shù)學五年級下冊整數(shù)加法運算定律推廣到分數(shù)加法教案
教學目標1、通過教學，學生懂得應用加法運算定律可以使一些分數(shù)計算簡便，會進行分數(shù)加法的簡便計算．2、培養(yǎng)學生仔細、認真的學習習慣．3、培養(yǎng)學生觀察、演繹推理的能力．教學重點整數(shù)加法運算定律在分數(shù)加法中的應用，并使一些分數(shù)加法計算簡便．教學難點整數(shù)加法運算定律在分數(shù)加法中的應用，并使一些分數(shù)加法計算簡便．教學過程設計一、復習準備（演示課件：整數(shù)加法運算定律推廣到分數(shù)加法）下載1．教師：整數(shù)加法的運算定律有哪幾個？用字母怎樣表示？板書：a＋b＝b＋a（a＋b）＋c＝a＋（b＋c）2．下面各等式應用了什么運算定律？①25＋36＝36＋25 ②（17＋28）＋72＝17＋（28＋72）③6.2＋2.3＝2.3＋6.2 ④（0.5＋1.6）＋8.4＝0.5＋（1.6＋8.4）教師：加法交換律和結(jié)合律適用于整數(shù)和小數(shù)，是否也適用于分數(shù)加法呢？這節(jié)課我們就一起來研究．二、學習新課（繼續(xù)演示課件：整數(shù)加法運算定律推廣到分數(shù)加法）下載1．出示：下面每組算式的左右兩邊有什么關系？
人教版新目標初中英語七年級下冊How was your weekend教案2篇
Teaching Goal:1. General aims:Talk about recent past events2. Particular aims:A. Language Focus.Talk about recent past events and think of the past events.B. Language goalsHow was….?It was …What did …do over the weekend?C. Language structures:(1). How was your weekend? I was great. Pay attention to no form.(2). What did you do over the weekend? I played soccer. We went to the beach.D. Useful words and phrases:Words: was, did, went, beach, over, project, test, wasn’t, false, number, geography, spend, week, most, mixture, their, had, little, cook, read, saw, change, everyone, sit, sat, no, anythingPhrases: did one’s homework, played soccer, cleaned my room, went to the beach, played tennis, went to the movies, on Saturday morning, over the weekend, cook … for, what about, do some reading, have a party, talk show, go shoppingE. Grammar language:Present simple past tenseRegular and irregular verbsF. Learning strategies:Tour and holidaysG. Interdiscipinary:H. Emotion and manner:Teaching time: 5 periodsTeaching procedures:Period One教學步驟、時間 教師活動 學生活動 媒體應用Step 1Free talk 3’ Ask some questions like:Who’s on duty today?What’s the weather like? Answer and talk about something.讓同學們回答下列問題1. Do you like weekend? (Let some students answer)It takes them three minutes to talk about the question.2. Why do you like weekend? (let the students answer) Most of the students like the weekend此時教師用漢語問：“在周末期間問你干了什么?這句話用英語這么回答?Let the students guess.At last the teacher give them right answer3. What did you do over the weekend?(板書、學習)
人教版新目標初中英語七年級下冊Where is the post office教案2篇
Period 2 (3a----Section B 2c)Preview(Pre-task): Key points: What laAdd another information about their pen pals----their language on the cardnguage does she/he speak?She/He speaks....Does she/he have any brothers and sisters? Does she/he speak English?Preview(Pre-task): Add another information about their pen pals----their language on the cardKey points: What language does she/he speak?She/He speaks....Does she/he have any brothers and sisters? Does she/he speak English?Step 1 Revision1.Revisionand dictation of the new words 2.Revise the drills they learned yesterday.(by pairwork and grammar exercise)Step 2 Leading-inT has a conversation with one student. The conversation is following:---Do you have a pen pal?---Yes, I do.---What's your pen pal's name? ---His/Her name is....---Where is your pen pal from? ---He/She is from...---Where does he/she live? ---He/She lives in....---What language does he/she speak?He/She speaks...Write the new words on the Bb. They are following: EnglishChineseJapaneseFrenchStep 3 LearnLearn the new words with the whole class.Finish 3a with the students3b Pairwork T still does an example with one student Then the Ss practise in pairs. The example is following:--Curry Muray is my pen pal. He is from the United States.---What language does he speak?
人教版新目標初中英語七年級下冊I want to be an actor教案2篇
三、教學建議第一課時：1. Lead in (Vocabulary)A) Before class, teacher should collect some pictures of working places. For example: Bank, TV Station, Restaurant, Police Station, Hospital ...B) In class, show students the pictures (PowerPoint, OHP). Ask students to tell the name of the working places and the name of the jobs.Shop assistant, doctor, actor, reporter, police office, waiter, bank clerk, studentC) Do exercise 1a and 3a.2. Bingo GameAsk groups of students to make up pairs of cards with a job on one and the related workplace on the other. For example, waiter / restaurant, teacher / school, doctor / hospital. Encourage students to use both the job / workplace combinations in the book and the ones that students came up during class discussions. Be sure they have twice as many sets of cards as there are students in the group. They can make two sets of cards for a single job / workplace, if necessary. Then have each group mix up its set of cards and hand their cards out in random order. Each time a student gets a pair of cards that match, he or she can lay these cards down. The goal is to have no cards in your hand at the end.3. Task OneA) Ask students to work in pairs and ask the partner what does he / she want to be in the future.e. g. :What do you / does he / does she want to be?I want to be a.Why?Because it's (adj).B) Vocabulary: Section B, 1a4. Homework 1.2.
人教版新目標初中英語七年級下冊It’s raining教案2篇
1 Each group choose one place to describe and what you are doing in it Choose one place, and describe what they are doing 2 Move around the room and give suggestions Talk about it and write it down 3 Ask one to show their works and act it Choose one of each group to make a report 4 Evaluate the best group and the best reporter Choose the best one Homework Ask your friends their ideal place and write about it教學反思：新課程標準中強調(diào)學生在課堂中的主體地位，在綜合課中他們的主體地位就更加突出。在各個活動中給不同程度的學生不同層次的任務，讓各層面的學生都有表現(xiàn)發(fā)揮的機會，從而產(chǎn)生對英語的興趣。使用照片圖片多媒體來輔助教學，效果更好。同時讓了解其他國家風景，風俗的同學介紹ideal place，增加學生的背景知知識，實現(xiàn)跨學科交流的目的。教案點評：采用任務型教學模式，在各個活動中給不同程度的學生不同層次的任務，讓各層面的學生都有表現(xiàn)發(fā)揮的機會，從而產(chǎn)生對英語的興趣。使用照片圖片多媒體來輔助教學，效果更好。讓了解其他國家風景，風俗的同學介紹ideal place，增加學生的背景知識，實現(xiàn)跨學科交流的目的。
人教版新目標初中英語七年級下冊Where did you go on vacation教案
句型: Where did you go on vacation? I went to summer camp．Did she go to Central Park？Yes，she did．No, she didn’t語法：一般過去時特殊疑問句、一般疑問句及肯、否定回答。課時安排4課時第一課時：Section A：la，1b，lc，2a，2b，2c 第二課時：Section A：3a，3b，4第三課時：Section B：1，2a，2b，2c第四課時：Section B：3a，3b，3c，4 and Self Check第一課時教學目標掌握描寫假期生活的形容詞。假期里自己所做事情的簡單表達。談論假期做的事情及當時情況。談論假期時旅游的天氣，旅游者以及食物等。教學過程一、導入播放一首英文歌曲：Let’s travel 說明：通過讓學生聽節(jié)奏歡快迪斯尼英語歌曲Let’s travel.引入本節(jié)課談論的話題vacation and travel. 讓歌曲使學生的思維活躍，增強課堂氣氛，激發(fā)學生提高學習英語的興趣。T：How is the trip ?Ss : It’s pretty good/ happy/exciting /relaxing/busy/dangerous/ fantastic說明：這個問題是為了操練形容詞。建議讓多個Ss作答。鼓勵他們用不同的形容詞。上述個別形容詞本應在第二課時中出現(xiàn)，但可以在warming-up中第一次非正式出現(xiàn)。這些形容詞也可在老師的評價語中適時出現(xiàn)，以加深學生對詞匯的印象。
人教版新目標初中英語九年級下冊Rainy days make me sad教案
1. 教材分析本單元以how do things affect you？為話題, 從顏色、天氣、音樂、廣告、產(chǎn)品等方面談論了外界事物如何影響人的心情。要求學生掌握表達某物或某事給人帶來的感覺、看法或影響等。共設計了四個部分的內(nèi)容：Section A 該部分有4個模塊：第一模塊圍繞Which restaurant would you like to go to?這一話題展開思維（1a）、聽力（1b）、口語（1c）訓練；第二模塊圍繞How does music affect you? 進行聽力（2a-2b）、口語訓練（2c）；第三模塊繼續(xù)圍繞how do colors in the restaurant affect you這一話題展開訓練，訓練形式為閱讀和問題體驗（3a）和小組活動（3b）；第四模塊仍就How do things affect you這一話題以調(diào)查的形式展開討論。Section B該部分有4個模塊：第一模塊圍繞產(chǎn)品廣告對人們的影響這一話題以“配對”（1a）與“列舉”（1b）兩種形式展開訓練；第二模塊繼續(xù)圍繞How do things affect you? 進行聽力（2a-2b）、口語對話訓練（2c）；第三模塊圍繞“Advertising”這一話題展開閱讀（3a-3b）和寫作（3c）訓練；第四模塊圍繞How posters affect you這一話題以口語訓練形式展開小組活動。
人教版新目標初中英語九年級下冊Could you please tell me where the restrooms are教案
Step Ⅰ RevisionCheck homework． Ask a few students to read the article in 3a．Then ask a few students to read their guides．Step Ⅱ Part 1Look at the words in the box． Ask a student to read them． Make sure the students understand the meaning of the words． You are to fill in the blanks with the words． In some cases, students may need to use another form of the word, for example adjusting for tense or subject/ verb agreement．Ask students to fill in the blanks on their own．Check the answers． Step ⅢPart 2Go through the instructions with the class．Look at the example with the students．Ask students what the answer would be．Ask a student to read the question and answer it．Excuse me, could you tell me where the bank is, please?The bank is across the street from the shopping malt．Get students to complete the work in pairs．Check the answers． Ask a few students to read their questions．Step Ⅳ Just for Fun!Ask all the students to read the conversation． Ask: What is funny about this cartoon? Help students to explain． A Martian is a person from the planet Mars．There is no such thing as Martian food on Earth, and the clerk looks silly because he is trying to think of where there is a Martian restaurant．Invite some pairs of students to present this conversation to the rest of the class．Step Ⅴ Summary and HomeworkIn this class, we’ve done much writing practice using the key vocabulary words and the target language presented in this unit． After class, please finish the questions in 2 in your exercise books． Then finish the exercises on pages 47～48 of the workbook as well．The Seventh Period Ⅰ Teaching Aims and Demands1． Knowledge Objects（1） Key Vocabularyimage, adventure, jealousy, hero, crime, journey, brave, no longer, show interest in, take it easy, become interested in, plain looks（2）Text:Grown-ups like cartoons, too．2． Ability Objects（1） Fast-reading to get a general idea of the text．（2） Careful-reading to get the detailed information in the text．
人教版新目標初中英語九年級下冊I’ll help clean up the city parks教案
Talk about offering help (P60)I’ll help clean up the city parks.A: I’d like to work ...B: You could help ...Talk about ways to tell people about the Clean-Up Day (P61)We need to ...We can’t ...I’ll ...Talk about the work the volunteers do (P62)These three students all volunteer their time to help other people.Somebody loves to ... / helps ... / plans to ... / wants to ...A: What do you like doing?B: I like ... A: What kind of volunteer work do you think I could do?B: You could ...1. 重點詞匯advertisement, fix, repair, pleasure, blind, deaf, shut, carry, specially, fetch2. 認讀詞匯hunger, homeless, cheer, clean-up, sign, establish, major, commitment, elementary, veterinarian, coach, similar, call-in, strategy, disabled, organization, unable, support, appreciate, donation, part of speech, pronoun, adverb, preposition, conjunction, donate, Jimmy, Sally3. 詞組clean up, cheer up, give out, put off, set up, think up, take after, fix up, give away, put up, hand out, work out, at once
人教版新目標初中英語九年級下冊We’re trying to save the manatees教案2篇
本單元主要圍繞著有關瀕臨滅絕的動物這一話題，學習了應該怎樣保護我們的環(huán)境，以及就某一問題展開辯論。目標提示語言目標能夠運用所學知識，就某一問題展開辯論。認知目標1、復習一些語法：現(xiàn)在進行時、一般現(xiàn)在時、用used to 表示一般過去時、現(xiàn)在完成時、一般過去時的被動語態(tài)。2、學會表達同意和不同意。3、學會以下基本句型：We’re trying to save the manatees.Manatees eat about 100 pounds of food a day.There used to be a lot of manatees.In 1972,it was discovered that they were endangered.Some of the swamps have become polluted.情感目標了解一些瀕臨滅絕的動物的生活習性和瀕臨滅絕的原因，教育學生應該如何保護環(huán)境。教學提示充分利用多媒體等教學設備，創(chuàng)設與本課話題相關的情境，如各種不同種類的動物、動物園以及有關環(huán)境的畫畫等等。圍繞著本單元的教學目標，設計一些貼近學生實際的教學任務，如讓學生談論自己最喜歡的動物，如何拯救瀕危動物，如何保護環(huán)境等等。讓學生根據(jù)所學知識，就動物園是否對動物有利以及其他的話題進行辯論。
人教版新目標初中英語九年級下冊You’re supposed to shake hands教案
教學目標：1. 掌握本單元一些重點詞匯的寫法和用法。2. 學會自如談論餐桌禮儀。Step 1 RevisionAsk some students to retell the customs at the table in France in the passage in 3a.Step 2 Self checkPart 1. Fill in each bland with the correct word given. Students do the exercises by themselves at first. Then check the answers. Ask the students to comprehend the sentences and help them point out uses of some words, like “arrive (at / in) sw., spend time / money on sth , spend time / money (in) doing sth.”Part 2. Read about Fan Ling’s experience in a western restaurant. Understand the passage. Point out some key points in the passage.1. be / get used to doing sth. 習慣做某事2. begin with = start with 以….開頭3. crowd v. 擠滿，塞滿 the crowd 人群 crowded adj. 擁擠的Then students discuss about how she would solve her problem. Ask some to share their stories with others.Part 3. Complete the crossword by looking at the sentences on the left. Then check the answers.
人教版新目標初中英語七年級下冊What does he look like教案3篇
所需要用到的句子：Who is that?That is Jack. I like him.Why do you like him?I like him because he is interesting.Task 4: 設計理想中的人類Step one: 設計理想中的人類的外貌。把全班同學分成若干小組，學生可以邊說邊在紙上畫出他們的模樣。Step two: 設計理想中人類的性格。學生們可以把那些能描述性格的單詞寫在圖畫的旁邊。Step three: 每組選出一名同學，其他同組同學提問，他作簡單回答，并說明原因。所需用到的句子：What does he or she look like?He or she ...What is he or she like?He or she is ...Why?Because ...Task 5: 挑戰(zhàn)性活動調(diào)查性格是天生的還是后天形成的，讓每個同學回家去調(diào)查一下自己成長過程中性格是否有變化，具體是怎樣的，為什么會這樣？ Teaching Aims:1. Enable students to have a general understanding of how to talk about people's physical appearance.2. Enable students to tackle some essential vocabularies and patterns about describing people. Provide them with necessary skills and methods.3. Create various chances for students to describe the persons they're familiar with, such as classmates, family members, teachers, idols, etc.