1、北師大版高中英語必修二unit4 lesson3 Virtual Reality reading 學(xué)案設(shè)計(jì)Unit4 Cyberspace-Lesson3 Virtual Reality一、學(xué)習(xí)目標(biāo)1 .透徹理解課文內(nèi)容。2 .對新學(xué)到的單詞和句型等能學(xué)以致用。3 .學(xué)習(xí)條件狀語從句。二、重難點(diǎn)分析1 .對課文里長難語句的理解以及句子成分分析。2 .學(xué)習(xí)條件狀語從句。三、學(xué)習(xí)過程Step 1:預(yù)習(xí)課文I .用15分鐘閱讀，粗通課文的大意，回答下面的問題。II ) What's the main idea of the text?A. The weekend life of Cathy

2、and Tom.B. The life that students hope for living in the futureC. The imagination of virtual reality 's holiday and study situationD. Imagination of how to live in the future(2) Which of the following is true?A. In the virtual reality holiday, we wouldn ' experience something directly.B. Tom

3、e will go camping with his families this weekend.C. Tom will send the website address to Cathy when he gets to school.D. It's not hard for us to imagine the virtual reality studying situation.(3) From the text, we can infer that.A. Cathy has lots of work to do this weekend.B. In the future, we w

4、ill not have to go to our destinations in the flesh at all.C. We will not only be able to travel around the world, but go to study in world famous universities we wanted to.D. Cathy dislikes to spend a long time traveling on planes during holiday.(4) According to the text, which of the following is

5、not right?A. It's a doubt that whether Tom will go camping this weekend.B. It's likely that we will go anywhere we like using modern technology in virtual reality.C. Tom will help Cathy with her project in any case.D. We needn't pack a suitcase during virtual reality holidays.(5) Where c

6、an we find the text?A. technical reportB. science and imagination fictionC. amusement bookD. student's diary(提示：C A D C B)2.利用10分鐘獨(dú)立解決不懂的詞句，用紅色筆做好疑難標(biāo)記。Step 2:學(xué)習(xí)重點(diǎn)單詞1. suggest vt.提議，建議I suggested going for a walk.我建議去散步。拓展：suggest作“建議”講，后接名詞、動(dòng)名詞、從句作賓語。其后的賓語從句用虛 擬語氣，即謂語動(dòng)詞的結(jié)構(gòu)是“( should+ )動(dòng)詞原形”。2. f

7、lesh n. U肉，肉體 in the flesh 本人親身Tigers are flesh eating animals.虎是食肉動(dòng)物。拓展：(1)辨析：flesh是指(人體的)肉、(果實(shí)的)果肉和(蔬菜的)葉肉。 muscle人 體肌肉。meat是供人們食用的肉，但不包括魚、禽的肉。 pork "豬肉"，beef "牛肉"， mutton "羊肉"，fish "魚肉"，duck "鴨肉"，chicken "雞肉"等。(2)搭配：gain flesh/weight =pu

8、t on flesh/weight "發(fā)胖，長肉”；lose flesh/weight "變 瘦”。漢語中的 血肉之軀”用英語表達(dá)是“flesh and blood。"3. historical adj.歷史的，有關(guān)歷史的Let's look at this from a historical standpoint.讓我們從歷史的觀點(diǎn)來看待這一切。拓展：historical 和 historic 辨析historical意思是“歷史的，歷史學(xué)的”，是指不管重要與否而在過去存在的所有事物, 也指與歷史或過去的研究有關(guān)的事物。The film is based

9、 on historical events.這部電影是根據(jù)歷史事件拍攝的。historic指“歷史上有重要意義的”、“歷史上有名的”，也用于形容那些因與歷史事 件或人物有聯(lián)系而有名或有趣的事物。October 1st 1949 is a historic day.1949年10月1日是個(gè)具有歷史意義的日子。4. imagine vt.想象（接名詞、動(dòng)名詞、從句作賓語）I imagine you are tired from the journey.我想你旅途勞累了。拓展：imagination n.想象；想象力What she has in mind is beyond imagination

10、.她心中所構(gòu)思的超乎人們的想象。imaginative adj.想象的，喚起想象力的The plan is very imaginative in conception.這個(gè)計(jì)劃在構(gòu)思上很有想象力。5. pack vt. &vi.收拾（行李）,打包We will leave tomorrow but I haven't begun to pack yet!我們明天動(dòng)身，但我現(xiàn)在還沒開始收拾行李呢！拓展：pack sth. into someplace = pack someplace with sth. 把裝入pack sb.sth.= pack sth. for sb.給某人

11、裝入 Step 3:學(xué)習(xí)重點(diǎn)句子1. Just think, if we had virtual reality holidays, we wouldn't have any problems with the weather.請想一想，如果我們有了虛擬現(xiàn)實(shí)的假期，我們將不會(huì)在天氣方面有什么麻煩。解析：本句用了與現(xiàn)在相反的、表假設(shè)的虛擬語氣，條件從句中謂語動(dòng)詞用過去時(shí)態(tài)，主句中謂語動(dòng)詞用“ would +動(dòng)詞原形”。本文中多次出現(xiàn)虛擬語氣句子，如：What's more, we wouldn't have to spend a long time travelling

12、on planes to get to our holiday destinations.還有，我們將不必為了度假而在飛機(jī)上待很長時(shí)間了。2. What's more, we wouldn't have to spend a long time travelling on planes to get to our holiday destinations.另外，我們不必坐長時(shí)間的飛機(jī)去度假目的地。解析：we wouldn't have to是虛擬語氣，是承接 if we had virtual holiday 而言的。3. We would not only be ab

13、le to travel around the world , but also go to study in any world famous universities we wanted to.我們不僅能周游世界，而且還能到我們所想要去的任何一所世界名牌大學(xué)學(xué)習(xí)。解析：not onlybut also是一個(gè)并列連詞，所連接的兩部分必須一致，連接動(dòng)詞時(shí)，動(dòng) 詞的時(shí)態(tài)、語態(tài)須一致。如：We should not only be brave, but also be careful.我們不僅要大膽，而且要仔細(xì)。not only.but also連接并列的主語時(shí)，主謂一致采用就近原則。如：Not

14、only the door but the windows are open.(連接并歹U主語)不僅門開著，窗戶也開著。Step 4:條件狀語從句條件狀語從句可分為兩種：真實(shí)條件句和非真實(shí)條件句/虛擬條件句。真實(shí)條件句意味著句中的動(dòng)作很可能發(fā)生。 兩種從句的重點(diǎn)都在于時(shí)態(tài)搭配。主句和從句的先后次序無關(guān)緊要。1 .真實(shí)條件句(1) if從句：一般現(xiàn)在時(shí)(表將來)，主句：一般將來時(shí)will do.I will buy it if the price is fair.如果價(jià)格公平，我會(huì)買下它。(2) if從句：一般現(xiàn)在時(shí)， S. +情態(tài)動(dòng)詞+ V.If your documents are in o

15、rder, you may/can leave at once.如果你的證明文件都齊備了你可以馬上就走。(3) if從句：一般現(xiàn)在時(shí)，祈使句If you want to lose weight, eat less bread.如果你想減肥，少吃面包。注意：在真實(shí)條件句中，主句不能用be going to表示將來，該用shall, will。（錯(cuò)）If you leave now, you are never going to regret it.（對）If you leave now, you will never regret it.（4）表示真理時(shí)，主句謂語動(dòng)詞便不用shall（will）

16、 +動(dòng)詞原形，而直接用一般現(xiàn)在時(shí)的動(dòng)詞形式。如：If you heat ice, it turns to water.如果把冰加熱，它就化成水。四、同步練習(xí)（一）把單詞與其釋義搭配起來。1. crasha. the act of destroying2. affectb. a person who enters other people' s computer programmes in secret3. harmc. to break violently or noisily4. hacker d. to set upon with violent force5. disappear

17、 e. injure, damage6. destructionf. to pass out of sight7. attackg. to have an influence or effect on解析：1. crash的意思是“使猛烈撞擊”，與c相同。2. affect的意思是"影響”,與g相同。3. harm的意思是"傷害”,與e相同。4. hacker的意思是"黑客"，與b相同。5. disappear的意思是"消失”,與f相同。6. destruction的意思是"毀壞"，與a相同。7. attack的意思是&qu

18、ot;攻擊"，與d相同。答案：1. c 2.g 3.e 4.b 5.f 6.a 7.d（二）用括號中所給詞的適當(dāng)形式填空。1. What M Millie, do ） if she （be） here?解析：根據(jù)here這個(gè)詞，可以得知此句的句意為“如果 Millie在這兒，她會(huì)怎么做？”和現(xiàn)在事實(shí)相反，用虛擬語氣。答案：would Millie do; were2. If the weather (permit) , I (go) hiking) this weekend.解析：用一般將來時(shí)，從句中因?yàn)槭怯锌赡馨l(fā)生的，用一般現(xiàn)在時(shí)。答案：permits; will go hiking3. If an earthquake (happen) tomorrow, what (you, do) ?解析：表示將來，明天發(fā)生地震的可能性很小，故用虛擬語氣。答案：happened/were to happen/should happen; would/should you do五、自我測評單項(xiàng)選擇題。1. If I were the teacher, I.A. will be more kindB. am more kindC. was more kind