北師大高中英語(yǔ)必修二Module 2Unit 6教學(xué)設(shè)計(jì)教學(xué)設(shè)計(jì)及學(xué)案

1、Module 2 Unit 6 教學(xué)設(shè)計(jì)第一課時(shí)First Period（Reading）教材分析 本課是本單元的第一課。教材圍繞三個(gè)著名的畫(huà)家以及他們的作品展開(kāi)。大部分學(xué)生對(duì)繪畫(huà)不是很了解，所以需要對(duì)相關(guān)簡(jiǎn)單的知識(shí)進(jìn)行介紹并引出話題詞匯。本單元的Warm-up 部分做了很好的鋪墊，學(xué)生在此基礎(chǔ)上了解三位畫(huà)家及其作品，并學(xué)會(huì)如何描述繪畫(huà)作品。 本課的難點(diǎn)在于對(duì)話題詞匯的積累，以及運(yùn)用適當(dāng)?shù)脑~匯來(lái)描述繪畫(huà)作品。因此在幾個(gè)活動(dòng)中分層次幫助學(xué)生識(shí)記并運(yùn)用這些詞匯。 本課計(jì)劃按兩課時(shí)進(jìn)行：第一課時(shí)的重點(diǎn)是獲取有關(guān)畫(huà)家的相關(guān)信息及話題詞匯。第二學(xué)時(shí)的重點(diǎn)是鞏固詞匯，歸納表示時(shí)間地點(diǎn)以及動(dòng)作的介詞，并在語(yǔ)

2、境中學(xué)會(huì)運(yùn)用。教學(xué)內(nèi)容 話題： A Matter of Taste 詞匯: 話題詞匯: realistic, abstract, scenery, landscape, light/dark, bright, soft, straight/wavy，shade 短語(yǔ)及搭配: combine with, be fixed on, leave the audience guessing, 語(yǔ)法: 表時(shí)間、地點(diǎn)以及動(dòng)作的介詞第一課時(shí)First Period教學(xué)目標(biāo)：At the end of this lesson, students will be able to:1. get to know t

3、hree famous painters and their masterpieces;2. learn to describe paintings with the words learned教學(xué)過(guò)程：教學(xué)活動(dòng)設(shè)計(jì)意圖互動(dòng)模式&時(shí)間Lead-inStep 1Invites Ss to talk about if they have been in an art exhibition and what they think of it? 通過(guò)對(duì)日常生活的回憶, 引出話題。Individual Work1Warm-up Step 2Show Ss some pictures and introd

4、uce some key elements of painting and use these topic words to describe different paintings.熟悉話題詞匯Individual work and pair work4 Step 3Ss listen to the tape and identify pictures on Page 35話題詞匯在聽(tīng)力材料中重現(xiàn)Individual work2Pre-readingStep 4Show Ss pictures and teach the new words.運(yùn)用圖片預(yù)教詞匯Individual work 2

5、Step 5Ss talk about which one satisfies their tastes and who painted the three paintings.在新語(yǔ)境下使用話題詞匯并引出課文內(nèi)容Group work3While-readingStep 6Ss read the text quickly and check their predictions有目的的快速讀課文,檢測(cè)預(yù)測(cè)Individual work2Step 7Read the text, then discuss the following questions with your partners.1. W

6、ho is famous for drawing pretty women?2. Who is more good at drawing simple pictures we often see in our life?3. Who held exhibitions abroad to advance Chinese art? 4. Why did Chen Yifei use black as the background of Poppy?5. What is Xu Beihongs masterpiece?After getting some knowledge of the paint

7、ers and T shows some other paintings and Ss try to guess whose paintings they are.提取信息,從整體上把握文章Pair work 7Step 7Ss try to fill in the blanks and find out how to introduce a famous painter.提取細(xì)節(jié)信息,重現(xiàn)詞匯Individual work and pair work 5Step 8Ss try to locate the key words used to describe paintings.提取細(xì)節(jié)信息

8、,重現(xiàn)詞匯Group work4Step 9Ss give a description of the three paintings with the help of the key words 內(nèi)化信息Pair work4After-readingStep 10T shows seven pictures and each group choose one picture to describe.T choose some groups to present their interview in front of the class.在新的語(yǔ)境下練習(xí)使用話題詞匯Group work6第二課時(shí)

9、Second Period（Grammar）教學(xué)目標(biāo)：At the end of this lesson, students will be able to :1. use the new words in a new context2. use prepositions of time, place and movement3. use the prepositions and topic words learned to describe a picture教學(xué)過(guò)程：教學(xué)活動(dòng)設(shè)計(jì)意圖互動(dòng)模式&時(shí)間ReviewStep 1T helps Ss to recall all the topic

10、vocabulary and brainstorm some other topic words回顧上節(jié)課內(nèi)容并適當(dāng)拓展新詞匯Group work5Step 2T asks Ss to finish exercise 3 to practice the topic words of the text在新語(yǔ)境中練習(xí)課文的單詞Individual work.4Step 3T shows a passage with gaps. Ss discuss about the missing words and read them out在新語(yǔ)境中練習(xí)話題詞匯Group work5Grammar lear

11、ning Step 4Ask Ss to locate all the prepositions from the text and classify them.在課文的語(yǔ)境中理解介詞的用法, 并歸納不同的介詞用途Pair work.5Step 5With the help of the picture, Ss try to finish ex.6 by filling in the blanks with prepositions .在新語(yǔ)境中練習(xí)，通過(guò)和圖片對(duì)照更直觀的理解介詞的含義Individual work.6Language in useStep 6Ask students to

12、bring a picture or a photo they like and describe it to your group members. 在真實(shí)的語(yǔ)境中，學(xué)生用本課詞匯和語(yǔ)法進(jìn)行表達(dá)Group work.15第一課時(shí)學(xué)案 I Word BankA: Key Words about painting:colours: _style: _subject: _shapes: _lines: _B: Fill in the blanks with the key words1. This is a _ painting of _ with _ colours and _shapes/_

13、background. 2. This is a(n) _ painting of _ with _ colours and_shapes. II Read and answer the following questions1. Who is famous for drawing pretty women? 2. Who is more good at drawing simple pictures we often see in our life? 3. Who held exhibitions abroad to advance Chinese art? 4. Why did Chen

14、Yifei use black as the background of Poppy? 5. What is Xu Beihongs masterpiece? III Read to learn: Find the specific informationA: Fill in the blanks with missed key words used to introduce the painters LifeXu Beihongimportant in, _, between and, held exhibitions to_Qi Baishigreatest, early youth, b

15、etween and, _and painted, _, _, such as, style, leave _Chen Yifei_, soft _of, _sold for ,B: How many things should be included to introduce a famous painter? C: Key words used to describe the three paintings?Description of the well-known paintingsRacing Horse Cabbage Poppy第二學(xué)時(shí)學(xué)案I Word Bank: words re

16、lated to painting Familiar words Unfamiliar wordsFill in the blanks with words related to painting.For thousands of years, artists have recorded and _ both the outside world and _. Some have sought _, others_.In the middle ages, some just extended to be _. During the Renaissance, art grew more _, fo

17、r works of great _ produced by Leonardo da Vinci, Michelangelo , Raphael , Durer, Andult. As times changed, so did art, yielding a rich diversity of _ and _. _ were equally varied. Painting with _, Ran created masterpieces of _ and _. Georges Seurat painted thousands of tiny dames. Jackson Pollock p

18、aint on _. Painting today often seems a mixture of a _ and _ culture with _ technology also contributing to _ the art form. II Find out the prepositions of time, place and movement in the text_his lifetime_the cabbage_ 1933 _ 1940_her knees_this painting_ the woman_the houses bodyClassify all the pr

19、epositions Expressions of timeExpressions of placeExpressions of movementLesson 2 Great Buildings教材分析本課是第六單元的第2課，是一節(jié)聽(tīng)說(shuō)技能課。本單元的話題是“設(shè)計(jì)”，而本課的話題是設(shè)計(jì)領(lǐng)域里很直觀、形象的一個(gè)方面 - “偉大的建筑”，因?yàn)樗褍?yōu)秀的設(shè)計(jì)形諸于實(shí)踐之中。本課的重點(diǎn)在于能聽(tīng)懂關(guān)于建筑的大致介紹，并就熟悉的建筑進(jìn)行口頭描述。在授課中可以引導(dǎo)學(xué)生欣賞中國(guó)著名的建筑作品。本課計(jì)劃按兩課時(shí)進(jìn)行：第一課時(shí)的重點(diǎn)在聽(tīng)，在聽(tīng)力過(guò)程中了解一些世界著名建筑的建筑類別、建成時(shí)間、材料及特點(diǎn)；培養(yǎng)在聽(tīng)力

20、練習(xí)后對(duì)聽(tīng)力難度進(jìn)行評(píng)估的能力。第二課時(shí)的重點(diǎn)是口頭表達(dá)，能模仿聽(tīng)力文章，對(duì)熟悉的建筑進(jìn)行描述。教學(xué)內(nèi)容話題：Great Buildings聽(tīng)力：Great Buildings詞匯：重點(diǎn)詞匯：ancient, modern, concrete, balcony, tower, statue, castle, skyscraper 相關(guān)詞匯：marble, ruin, architect, decoration, parade 短語(yǔ)及搭配: kind of, type of, sort of, be situated, as if第一課時(shí)First Period教學(xué)目標(biāo)在本課結(jié)束時(shí)，學(xué)生能夠：1

21、. 在聽(tīng)力過(guò)程中了解一些世界著名建筑的建筑類別、建成時(shí)間、材料及特點(diǎn)2. 培養(yǎng)在聽(tīng)力練習(xí)后對(duì)聽(tīng)力難度進(jìn)行評(píng)估的能力教學(xué)過(guò)程教學(xué)活動(dòng)Activities設(shè)計(jì)意圖Intentions互動(dòng)模式&時(shí)間IP & timeLead-inStep 1 Key words 1: PeriodT shows Ss several pictures of great buildings in human history and leads the students to categorize them into two groups based on the time when they were builtPP

22、T 3101 通過(guò)圖片展示，引導(dǎo)學(xué)生欣賞人類歷史上的偉大建筑，激起學(xué)生對(duì)建筑的興趣2 學(xué)習(xí)與建筑時(shí)間相關(guān)的詞匯CW5Step 2Key words 2: MaterialsT shows Ss several pictures of buildings in different styles and Ss learn the relevant vocabularyPPT 11學(xué)習(xí)與建筑材料相關(guān)的詞匯CW2Step 3Key words3: stylesT shows Ss several pictures of buildings in different styles and Ss lear

23、n the relevant vocabulary PPT 12-13學(xué)習(xí)與建筑類型相關(guān)的詞匯CW4Step 4Key words 4: featuresT shows Ss several pictures of different building materials and Ss learn the relevant vocabularyPPT 14-15學(xué)習(xí)與描述建筑特色相關(guān)的詞匯CW3Step 5Ss finish Exercise 1 and check the answersPPT 16對(duì)在聽(tīng)力材料中即將出現(xiàn)的四個(gè)建筑有初步的了解，有助于學(xué)生對(duì)聽(tīng)力練習(xí)做一定預(yù)測(cè)CW3Step 6

24、Ss listen to the material in Ex.3 & 4PPT 17-18培養(yǎng)對(duì)建筑類話題的聽(tīng)力CW22Step 7Ss listen to the material again and finish Ex. 5學(xué)習(xí)sort of, kind of等用于緩和語(yǔ)氣的表達(dá)法CW6Homework1 Review the new vocabulary 2 Finish Ex. 1&2&3 on page 80 in Language Power 第二課時(shí)Second Period教學(xué)目標(biāo)在本課結(jié)束時(shí)，學(xué)生能夠：1. 對(duì)一個(gè)建筑物從建筑時(shí)間、建筑材料、特色和類型這四個(gè)方面進(jìn)行口頭描述

25、2. 運(yùn)用本課表達(dá)寫(xiě)一篇描述建筑的文章教學(xué)過(guò)程教學(xué)活動(dòng)Activities設(shè)計(jì)意圖Intentions互動(dòng)模式&時(shí)間IP & timeLead-inStep 1 Ss finish Ex. 6 and learn about the way of using stresses on different words to emphasize different aspects.PPT 3學(xué)習(xí)重音的使用CW5Step 2T gives a model of the description of a building from 6 aspects: Name, Period, Location, S

26、tyle, Materials, FeaturesPPT 4回憶鞏固第一課時(shí)所學(xué)詞匯，掌握介紹建筑的大致脈絡(luò)CW5Step 3T asks Ss to work in pairs and describe one of their favorite buildings to each other without telling the name of the building. The other Ss then try to guess what building their partner is talking about. Ss do the description according

27、to the given model in Step 2PPT 5給學(xué)生充分的時(shí)間準(zhǔn)備，為在全班同學(xué)面前展示做鋪墊。學(xué)生使用詞匯和句型進(jìn)行綜合性表達(dá)，并體現(xiàn)語(yǔ)言的交際性。PW28Step 4 T asks several Ss to introduce their favorite buildings to the whole class and the rest of the students to guess. 展示活動(dòng)成果，鼓勵(lì)學(xué)生用英語(yǔ)進(jìn)行表達(dá)的興趣。CW7HomeworkWrite an essay about one of your favorite buildings. 第一課時(shí)

28、學(xué)案Ex. 3kinds of buildingsstyle/periodmaterialsfeatures1 palaceancientmarblebalcony, statues第二課時(shí)學(xué)案Sample description:The National Stadium is located in Beijing, China. It was built in 2007 and the major building materials are concrete and steel. It has another interesting name, Bird Nest, because it

29、looks like a bird nest from the outside. We Chinese people take pride in this great building and its considered to be a masterpiece in architecture. Lesson 3 Chinese Paper Art教材分析本課是第六單元的第三課，是一節(jié)語(yǔ)言技能課。本單元的話題是“設(shè)計(jì)”，主要講的是藝術(shù)，而本課的“中國(guó)剪紙藝術(shù)”與第一節(jié)課的“繪畫(huà)藝術(shù)”非常相關(guān)，因此本課可以利用談?wù)摰谝还?jié)課的繪畫(huà)而自然過(guò)渡到本話題。本節(jié)課重點(diǎn)訓(xùn)練利用課本提供的重點(diǎn)詞匯描述和談?wù)摷?/p>

30、紙，并且通過(guò)不同的閱讀方法培養(yǎng)學(xué)生不同的閱讀技能，并使學(xué)生認(rèn)識(shí)到剪紙藝術(shù)在傳統(tǒng)中國(guó)文化中的重要地位。本節(jié)課可分兩個(gè)課時(shí)進(jìn)行。第一個(gè)課時(shí)的重點(diǎn)是閱讀理解，學(xué)會(huì)通過(guò)閱讀提取重要信息，同時(shí)在課文語(yǔ)境中接觸和體會(huì)關(guān)系代詞引導(dǎo)的定語(yǔ)從句，了解定語(yǔ)從句的用法和功能；第二課時(shí)的重點(diǎn)是對(duì)語(yǔ)法的處理。主要通過(guò)學(xué)生在語(yǔ)境中體驗(yàn)其用法并發(fā)現(xiàn)其規(guī)則的方式，幫助學(xué)生掌握和正確使用關(guān)系代詞引導(dǎo)的定語(yǔ)從句。Language Power 中有關(guān)語(yǔ)法的練習(xí)有些可以在教學(xué)中使用，有些則可以留作家庭作業(yè)。教學(xué)內(nèi)容 話題：Chinese Paper Art閱讀：The Art of Paper詞匯：重點(diǎn)詞匯：paper cut, p

31、aper cutting, decoration, religious, pattern 相關(guān)詞匯：phoenix, dragon, rooster, bat, purple, offering 短語(yǔ)及搭配：from an early age, date back to, put up, try out語(yǔ)法：關(guān)系代詞引導(dǎo)的定語(yǔ)從句 第一課時(shí) First Period教學(xué)目標(biāo)在本課結(jié)束時(shí)，學(xué)生能夠：1. 使用關(guān)鍵詞描述剪紙作品；2. 閱讀文章提取基本和具體信息；3. 談?wù)搶?duì)不同剪紙的喜好；4. 認(rèn)識(shí)到剪紙?jiān)谥袊?guó)傳統(tǒng)文化中的重要地位。教學(xué)過(guò)程教學(xué)活動(dòng) Activities設(shè)計(jì)意圖Intention

32、s互動(dòng)模式& 時(shí)間IP& timeLead-inStep 1T asks Ss to think about the title of the unit and the topic of lesson 1, and then naturally shows them the pictures of paper cuts and shows the teaching objectives. PPT 1-2回顧和激活已有知識(shí),自然過(guò)渡到本課話題。CW3Pre-readingStep 2T asks Ss to work in pairs talking about the paper cuts o

33、n the textbooks. PPT 3-6 通過(guò)討論這些圖片幫助學(xué)生熟悉話題和相關(guān)詞匯。PW5While-readingStep 3Ss skim the passage quickly to get the general main aspects of the passage.學(xué)案IPPT 7第一遍閱讀：通過(guò)略讀找出文章中的主要話題，培養(yǎng)學(xué)生略讀找大意的能力。IW3Step 4Ss scan the passage quickly to answer several specific questions and learn some important words in the co

34、ntext.學(xué)案IIPPT 8-9第二遍閱讀：通過(guò)查讀找出文章主要時(shí)間和相關(guān)信息并在語(yǔ)境中處理重要詞匯。IW5Step 5Ss read the passage carefully to get some detailed information and learn some other key words in the context.學(xué)案IIIPPT 10-13第三遍閱讀：通過(guò)細(xì)讀獲得文章細(xì)節(jié)信息，了解詳細(xì)內(nèi)容，幫助學(xué)生通過(guò)上下文猜測(cè)理解詞義。PW10Post-readingStep 6Ss work in groups to talk about which kind of paper

35、cuts they would like to try.學(xué)案IVPPT 14幫助學(xué)生內(nèi)化有關(guān)剪紙的已學(xué)知識(shí)及詞匯，并在已學(xué)知識(shí)基礎(chǔ)上表達(dá)自己的觀點(diǎn)。GW10Step 7T summarizes what has been learned in this lesson and Ss have a brief review about the text.PPT 15幫助學(xué)生總結(jié)回顧本節(jié)課內(nèi)容，進(jìn)一步鞏固已學(xué)知識(shí)。CW3Step 8Ss talk about the important position of paper cuts in Chinese traditional culture.PPT

36、 16通過(guò)討論剪紙?jiān)谥袊?guó)傳統(tǒng)文化中的地位升華學(xué)生對(duì)剪紙文化的認(rèn)識(shí)。PW6Homework1. Read the passage carefully and underline all relative clauses in it.2. Finish the handout of relative clauses.第二課時(shí) Second Period教學(xué)目標(biāo)在本課結(jié)束時(shí)，學(xué)生能夠：1. 找出帶有who, that, which, whose, whom 的定語(yǔ)從句；2. 知道who, that, which, whose, whom 在定語(yǔ)從句的用法；3. 掌握定語(yǔ)從句中何時(shí)能夠省略who, t

37、hat, which, whom；4. 使用帶有who, that, which, whom，whose的定語(yǔ)從句談?wù)撊撕褪陆虒W(xué)過(guò)程教學(xué)活動(dòng) Activities設(shè)計(jì)意圖Intentions互動(dòng)模式& 時(shí)間IP& timeRevisionStep 1Ss underline all the relative clauses in the text and find relative pronouns “who, that, which, whose, whom” in the text. PPT 4讓學(xué)生獨(dú)立找出課文中所有定語(yǔ)從句及關(guān)系代詞，既復(fù)習(xí)了已學(xué)內(nèi)容又讓學(xué)生在文章中關(guān)注和體會(huì)定語(yǔ)從句的

38、具體使用。IW5Language StudyStep 2Ss Fill the table with “who, that, which, whose, whom”.學(xué)案IPPT 5學(xué)生通過(guò)研讀課本中的定語(yǔ)從句初步歸納關(guān)系代詞的基本用法。PW5Step 3Ss observe the expressions closely and try to work out when “who, that, which, whose, whom” can be left out.學(xué)案IIPPT 6-7學(xué)生繼續(xù)研讀例句，通過(guò)互相合作發(fā)現(xiàn)何時(shí)關(guān)系代詞可以省略。PW5Step 4Ss do some pract

39、ice.PPT 8-9發(fā)現(xiàn)語(yǔ)法規(guī)則后馬上進(jìn)行相關(guān)練習(xí)進(jìn)行鞏固。IWPW5Language in useStep 5Ss work in pairs to add relative clauses to complete the sentences so that they say something true about themselves.PPT 10-11半控制的練習(xí)主要是帶動(dòng)學(xué)生關(guān)注句子結(jié)構(gòu)，同時(shí)使內(nèi)容有一定的自由度和趣味性。PW8Step 6Ss work in groups to talk about some famous idiom stories by using relat

40、ive clauses.學(xué)案IIIPPT 13-16學(xué)生此時(shí)對(duì)關(guān)系代詞引導(dǎo)的定語(yǔ)從句已經(jīng)掌握，此時(shí)用它講故事既有自由度又有趣味性。GW12Step 7Ss evaluate the stories of the other groups.通過(guò)小組互相評(píng)價(jià)提升學(xué)生對(duì)定語(yǔ)從句的認(rèn)識(shí)和理解。GW5Homework1. Groups work: Write down one idiom story. 2. Page 41: Ex.103. Page 82/ 5,6第一課時(shí)學(xué)案I. Read the text quickly and try to decide which of the followin

41、g are talked about in the text. 1. the history of paper cuts 2. the sales of paper cuts 3. the types of paper cuts 4. the customs of paper cutsII. Read the text again and answer the following questions.1. When were paper cuts of animals found in China? 2. How many types of paper cuts do people like

42、to make today? 3. How do you know that there is a long tradition of paper-cutting in China? III. Read the passage carefully for specific information. Introduction: It is a art with a history. It dates back to . By the Southern Song Dynasty, . It is used for . 1) 2) Paper cuts 3) It is used for .The

43、types 1) 2) be used as It is used for . 1) 2) IV. If you have a chance to learn paper-cutting, which kind of paper cuts will you like to try? Why?Tips: 1 21.animals(horse, sheep and so on);2.flowers;3.figures;4.characters1.because it can be used to decorate-2. because it can be used on a present-3.b

44、ecause it can be used for -第二課時(shí)學(xué)案I. Fill the table with “who, that, which, whose, whom”. Relative PronounsRefer topeoplepeoplethingspeople; thingspossessionII. Look at these expressions from the text and decide when can “who, whom , that ,which” be left out. 1. a paper cutting expert (whom) I interv

45、iewed2. something (that) he learned3. a young farmer who wanted a wife4. paper cuts which show the Chinese character.5. parents whose child has recently been bornIII. Tell idiom stories. (Group work) Requirements: 1. All the members take turns to tell the story. 2. Use 2 or 3 attributive clauses in

46、proper places. 3. Other groups: *Guess the idiom*Pick out the attributive Clauses *Talk about whether the attributive clauses are properly used a thing which/that/whosea person who/that/whom/whosea place which / thata day which / thatLesson 4 Dream Houses 教材分析 本課是第六單元的第四節(jié)課，是一節(jié)閱讀技能課。本課重點(diǎn)是了解房子的一些基本詞匯，

47、例如房子的類型以及房間的構(gòu)成等，并在了解的基礎(chǔ)上通過(guò)閱讀文章的掌握加深對(duì)這一話題的理解，為接下來(lái)的Communication Workshop的寫(xiě)作內(nèi)容作鋪墊和準(zhǔn)備。本課可作為兩個(gè)課時(shí)講，第一個(gè)課時(shí)主要針對(duì)背景詞匯和房屋類型有一個(gè)簡(jiǎn)單的介紹，然后通過(guò)閱讀領(lǐng)會(huì)如何在文章的語(yǔ)境中使用這些詞匯，并通過(guò)略讀和細(xì)讀掌握文章信息；第二課時(shí)主要針對(duì)詞匯，一方面復(fù)習(xí)詞匯，第二方面分辨英式英語(yǔ)和美式英語(yǔ)，并運(yùn)用已知詞匯和句式來(lái)口頭描述理想中的房屋。教學(xué)內(nèi)容 話題：Dream Houses閱讀：The House on Mango Street重點(diǎn)：掌握如何運(yùn)用已知詞匯描述房屋; 分辨英式英語(yǔ)和美式英語(yǔ) 第一課時(shí)

48、 First Period教學(xué)目標(biāo)在本課結(jié)束時(shí)，學(xué)生能夠：5. 了解房屋類型和構(gòu)成的關(guān)鍵詞匯6. 閱讀文章提取基本和具體信息；7. 運(yùn)用已知詞匯描述自己的家。教學(xué)過(guò)程教學(xué)活動(dòng) Activities設(shè)計(jì)意圖Intentions互動(dòng)模式& 時(shí)間IP& timeLead-inStep 1T shows Ss the pictures of an apartment and house to introduce the topic of the lesson. PPT 1-3回顧和激活已有知識(shí),自然過(guò)渡到本課話題。CW3Step 2 T shows four pictures and asks Ss to think about the difference between hous