必修五第二单元Extensive reading
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Unit2 Extensive ReadingPuzzles in GeographyI. Warming-up1.How many countries does the UK consisat of?A. twoB. threeC. four2. How long does it take to fly fromBeijing airport to London HeathrowAirport?A. about 6 hoursB. about 11 hoursC. about 16 hours3. Who rules the UK: the Prime Minister or the Queen?A. the QueenB. the Prime MinisterC. both4. What are the provinces called in England?A. countiesB. departmentsC. states5. Which is the longest river in England?A. the River AvonB. the River ThamesC. the River SevernII. Pre-reading Appreciate the pictures.III. While-readingTask 1. ListeningWhat is the main idea of the text?A. How many countries make up the United Kingdom.B. Explain how England is divided into three zones.C. The reason why London became the cultural capital of England.D. A brief introduction to the UK about its foundation and development based ongeography, history and culture, etc.Task 2. Skimming Match the main idea of each paragraph.Para. 1 A. Explains what the term “Great Britain” means and how it came about.Para. 2 B. States the topic of the passage.Para. 3 C. Explains differences in the four countries.Para. 4 D. Explains the importance of London as a cultural and political center in the UK.Para. 5 E. The evidence of the invaders can be found in the British countryside. Para. 6 F. Explains how England is divided into three zones.Task 3. Scanning1.Multiple choices(1) England and Wales were joined to Scotland in the ______ century.A. thirteenthB. seventeenthC. early twentieth centuryD. 1060s(2) From Para. 4, we know that____________________________.A. England, Wales and Scotland form Great Britain.B. most of the population settle in the north.C. the cities are as large as those in China.D. British people love football very much.(3) We can draw a conclusion that ______.A. none of the cities in England are as big as those in China.B. the four countries work together in the currency and legal system.C. every city in England has historical architecture built by Romans.D. evidence of different invaders can be found all over the UK.1.The oldest castle in London was constructed by Norman rulers in 1066.2.London has the oldest port built by the Normans in the 1st century AD.3.The oldest building in London was begun by the Anglo-Saxons in the1060s.4.The first invaders Norman left their towns and roads.5.The Vikings influenced the vocabulary and place-names of the North ofEngland.IV. Fill in the blanks with proper words.The full name of England is the ___________ of Great Britain and Northern Ireland.Itconsists of four parts, they are ________, _________, ______ and __________. People always think ______ is a part of England. The flag of the UK is called the ___________.The four countries have different __________ and _______ as well as different _______. ________ is the largest of the four countries and it is ________ three parts. Most of the people settled in the ______, but most of the large industrial cities in the _________ and the ______. The capital of the UK is _______, which has many great places of interest.。
高一英语《Extensive Reading》教学设计关于三峡的资料:船出了西陵峡,经过一段宽谷的航行后就进入了长江三峡的另一座古城巴东。
长江三峡的巫峡就从巴东县的官渡口开始,结束于四川省巫山县的大宁河口,全长42km,巫峡以巫山得名。
她幽深秀丽,千姿百态,以俊秀著称天下。
峡谷内长年云遮雾绕,细雨蒙蒙,及易形成巫山云雨的奇妙景观。
谷深峡长,奇峰突兀,江流曲折,百转千回,船行其间,宛若进入奇丽的画廊,充满诗情画意,令人叹为观止。
不少观光游客游过巫峡之后,感触颇深地说:“要知中国画与中国山水的关系,不到巫峡不明白。
”唐朝诗人元稹曾赋诗曰:“曾经沧海难为水,除却巫山不是云。
”可见巫山云雨乃是天下云雨之冠了。
要求学生模仿课文,叙述三峡工程。
Step III Practice.根据问答提示,写一篇短文。
(可做口头练习)1. Where is the Palace Museum ? (in the center of Beijing)2. How big is it ? (an area of 72 hectares)3. When was it first built? (in the early 15th century)4. How many people did it take to work on it? (1,000,000)5. How long did the building of the project last? When was it finished?(14 years,1492)6. What happened to some of the houses during the later years?(rebuild)7. Who used to live in it ? (twenty-four emperors)8. When didi it become a museum and open to the public ? (1925)答案:The Palace Museum is in the center of Beijing. It covers an area of 72 hectares(公顷). It was first built in the early 15th century. It took 1,000,000 people to work on it. The building of the project lasted 14 years and was finished in 1420. During the later years, some of the houses were rebuilt. Twenty-four emperors used to live in it. It was not until 1925 that the Palace Museum became a museum. Since then the place has been open to the public.Step IV PracticeP90 Ex 3.Step V Homework1.If we have no time to do the writing above in class, we can leave it as homework2.Read the text again and again.。
Book 5 Unit 2 The United Kingdom----Sightseeing in LondonDate: Dec. 16th Class: 210 Teacher:●Teaching Aims1.By the end of the class, Ss will be able to learn more information about London.2.By the end of the class, s will be able to master some reading skills such as scanning and skimming, so as to get the main idea and find some detailed information of the reading quickly.3.By the end of the class, Ss will be able to write a letter of travel plan.●Emphases and Difficulties1. Ss will be able to learn the useful words and phrases in the text, such as delight, fancy, splendid, thrill, in memory of and so on.1.Ss will be able to talk and write a travel plan.2.Ss will have difficulties in understanding some complicated sentences and putting their own words into correct sentences and finally a complete passage.●Teaching MethodsCommunicative learning method; Multimedia teaching method●Teaching AidsA set of multimedia equipment●Teaching ProceduresStep 1 Pre-reading(1) Lead-in:T: What’s the date today?Ss: Dec. 16thT: What’s the festival is Dec. 25th ?Ss: Christmas!(2)Santa Claus’ magic time①T: If Santa Claus gave you a 7-day holiday and a lot money, what will you do?Ss: sleeping, shopping, traveling......②Talk about some places to visit.Hangzhou, Beijing, Tibet →America, Australia, the UK③Get enough preparation before traveling.Culture, traffic rules.......Step 2 While-Reading(1)SkimmingWhat’s the mai n idea of the passage?A. Introduce some famous sites of London.B. Zhang Pingyu's first visit to London.C. Introduce the history and culture of London.(2)ScanningMake a list of Zhang Pingyu’s tour of London and her comments on each place.①The first dayThe tower of London → St.Paul’s Cathedral→ Westminster Abbey→ Big Ben→Buckingham Palace②The second dayGreenwich Observatory (famous and interesting)③The third dayHighgate Cemetery (strange and thrilled)④The next dayWindsor CastleStep 3 Post-Reading(1)Discussion: travel plan designZhang Pingyu wrote a letter to ask for help. Ss discuss in groups of four to recommend some places of TongXiang for her to visit and help her make a travel plan as well.Travel PlanDay1 Day2 Day3 Places to goThings to doTips: ①乌镇Wuzhen ②凤凰湖Fenghuang Lake ③桐乡世贸中心Tongxiang’s World Trade Center ④新世纪公园New Century Park(2)Enjoy a poemThe world is so big that I want to have a look.The earth is round, I want to wander around.There is such a lot of things on the world to see.That wonderful world is waiting for me.世界那么大,我想去看看!Step 4 HomeworkOrganize the information in the above chart and write a short letter to help Zhang Pingyu in the following format.Dear Zhang Pingyu,I am so excited to hear that you are going to have a travel here in Tongxiang_______________________________________________________________________ _______________________________________________________________________________ _______________________________________________________________________________ _______________________________________________________________________________ _______________________________________________________________________________ _______________________________________________________________________________ I will pick you up at the bus station.Best Wishes!yours,Li Hua。
Unit 2 第5课时Extensive Reading 导学案泛读材料1:选用教材中Using language中的阅读素材< Sightseeing in London>1.Which scenic spot didn‟t Zhang Pingyu visit?A.The Tower of LondonB.Westminster Abbey.C.Big benD.The White House2.What is the Buckingham Palace used for?A.It is used as Queen‟s house.B.It is used as King‟s house.C.It is used for the goverment.D.It is used for shopping.3.When did the St. Paul‟s Cathedral build?A. In 1566B.In 1666C.In 1878D.In 18884.How long did Zhang Pingyu stay?A. 2B.3C.4D.55.What made her thrilled?A.Many cultures displayed in the museum.B.Many visitors came here.C.The imaginary line divides the world into two partsD.She would see the Queen.泛读材料2:选用课外的相关话题的阅读素材,如:A simple piece of clothesline hangs between some environmentally friendly Americans and their neighbors.On one side stand those who see clothes dryers (干衣机) as a waste of energy and a major polluter of the environment. As a result,they are turning to clotheslines as part of the “what-I-can-do environmentalism (环境保护主义).”On the other side are people who are against drying clothes outside,arguing thatclotheslines are unpleasant to look at. They have persuaded Homeowners Associations (HOAs) access the U.S. to ban outdoor clotheslines,because clothesline drying also tends to lower home value in the neighborhood. This has led to a Right-to-Dry Movement that is calling for laws to be passed to protect people‟s right to use clotheslines.So far,only three states have laws to protect clothesline. Right-to-Dry supporters argue that there should be more.Matt Reck,37,is the kind of eco-conscious (有生态意识的) person who feeds his trees with bathwater and reuses water drops from his air conditioners to water plants. His family also uses a clothesline. But on July 9,2007,the HOA in Wake Forest,North Carolina,told him that a dissatisfied neighbor had telephoned them about his clothesline. The Recks paid no attention to the warning and still dried their clothes on a line in the yard. “Many people say they are environmentally friendly but they don‟t take matters into their own hands,” says Reck. The local HOA has decided not to take any action,unless more neighbors come to them.North Carolina lawmakers are saying that banning clotheslines is not the right thing to do. But HOAs and housing businesses believe that clothesline drying reminds people of poor nei ghborhoods. They worry that if buyers think their future neighbors can‟t even afford dryers,housing prices will fall.Environmentalists say such worries are not necessary,and in view of global warming,that idea needs to change. As they say,“The clot hesline is beautiful. Hanging clothes outside should be encouraged. We all have to do at least something to slow down the process of global warming.”1. One of the reasons why supporters of clothes dryers are trying to ban clothesline drying is that ______.A. clothes dryers are more efficientB. clothesline drying reduces home valueC. clothes dryers are energy-savingD. clothesline drying is not allowed in most U.S. states2. Which of the following best describes Matt Reck?A. He is a kind-hearted man.B. He is an impolite man.C. He is an experienced gardener.D. He is a man of social responsibility.3. Who are in favor of clothesline drying?A. Housing businesses.B. Environmentalists.C. Homeowners Associations.D. Reck‟s dissatisfied neighbors.4. What is mainly discussed in the text?A. Clothesline drying: a way to save energy and money.B. Clothesline drying: a lost art rediscovered.C. Opposite opinions on clothesline drying.D. Different varieties of clotheslines.泛读材料3:选用课外的相关话题的阅读素材,如:The Queen‟s English is now sounding less upper-class, a scientific study of the Queen‟s Christmas broadcasts has found. Researchers have studied each of her messages to the Commonwealth countries since 1952 to find out the change in her pronunciation from the noble Upper Received to the Standard Received.Jonathan Harrington,a professor at Germany‟s University of Munich,wanted to discover whether accent (口音) changes recorded over the past half century would take place within one person. “As far as I know,there just is nobody else for whom there is this sort of broadcast records,” he said.He said the noble way of pronouncing vowels (元音) had gradually lost ground as the noble upper-class accent over the past years. “Her accent sounds slightly less noble than it did 50 years ago. But these are very,very small and slow changes that we don‟t notice from year to year.”“We may be able to relate it to changes in the social classes,” he told The Daily Tele graph,a British newspaper. “In 1952 she would have been heard saying …thet men in the bleck het‟. Now it would be …that man in the black hat‟. Similarly she would have spoken of …the citay‟ and …duty‟,rather than …cite‟ and …dutee‟,and …hame‟ rather than …home‟. In the 1950s she would have been …lorst‟,but by the 1970s …lost‟.”The Queen‟s broadcast is a personal message to the Commonwealth countries. Each Christmas,the10-minute broadcast is put on TV at 3 pm in Britain as many families are recovering from their traditional turkey lunch (传统火鸡午餐).The results were published (发表) in the Journal of Phonetics.1. The Queen‟s broadcasts were chosen for the study mainly because ______.A. she has been Queen for many yearsB. she has a less upper-class accent nowC. her speeches are familiar to many peopleD. her speeches have been recorded for 50 years2. Which of the following is an example of a less noble accent in English?A. “duty”B. “cite”C. “hame”D. “lorst”3. We may infer from the text that the Journal of Phonetics is a magazine on ______.A. speech soundsB. Christmas customsC. TV broadcastingD. personal messages4. What is the text mainly about?A. The relationship between accents and social classes.B. The Que en‟s Christmas speeches on TV.C. The changes in a person‟s accent.D. The recent development of the English language.答案:泛读材料1:DABBA泛读材料2:BDBC泛读材料3:DBAC。
课题名称:Unit 2 The United Kingdom课程模块及章节:Book 5 Unit 2 Period 8 (Extensive Reading)二次备课教学背景分析(一)课标的理解与把握本课时是Using language: Reading (P14), 读的部分主要介绍英国伦敦的一些名胜。
通过图片展示,使学生感受异国文化,增强学生的文化意识,培养学生跨文化理解的能力。
本课时把Using Language中的Reading和Workbook中的READING TASK整合为一节“泛读课”。
(二)教材分析Using Language 通过增加阅读篇目“SIGHTSEEING IN LONDON”,让学生了解英国首都伦敦的名胜古迹。
本课时的内容是旅行参观游记,根据课文内容让学生学会如何使用某些形容词和动词形象地描述一个景点的位置、方向和距离。
这是高考作文中常见的一个方面。
学好对某一景点或旅游胜地的介绍和描述对学生的学习和生活会有很大帮助。
(三)学情分析本人所任教班级的学生大部分英语基础薄弱,词汇量少,只能从简单入手。
在本教学设计中,教师将结合学生的兴趣及学习实际,对教材设置做了一些处理,使更多的学生能在老师的指导下参与到课堂活动中。
教学目标1.通过阅读课文获取主要信息完成相关练习。
2.能根据课文中所提出的问题,发表自己的看法。
3.培养学生自主学习和合作探究的意识。
教学重点和难点教学重点:掌握本课文中的词汇,理解课文。
教学难点:深度了解“英国”的构成及语言和文化的发展并就“几个著名景点”用英语进行介绍和进一步的描述。
教学资源、教学手段和主要教学方法教学用具:The multimedia and other normal teaching tools教学方法:Task-based teaching and learning; cooperative learning教学过程教学环节教师为主的活动学生为主的活动设计意图导入新课 1.Ask the students toreview the words learntin this unit.2.Revision and Lead-in:Talk about London withthe students. 小组成员合作学习,然后几位同学作汇报。
Unit 2 The United KingdomExtensive ReadingTeaching goals1. Target Languagea. 重点词汇和短语sightseeing, available, delight, tower, royal, uniform, splendid, statue, munism, thrill b. 重点句式Worried about the time available, Zhang Pingyu had ... P14But she was thrilled by ... P142. Ability goalsEnable the students to plan a tour around certain places.3. Learning ability goalsHelp the students know more about the historical sites in London.Teaching important & difficult pointsHelp the students identify different kinds of tour and talk about the most interesting place for the tour.Teaching methodsTask-based activities.Teaching aidsA puter and a projector.Teaching procedures & waysStep I Revision and Lead-inTalk about London with the students.T: London has been a capital city for nearly 1,000 years, and many of its ancient buildings still stand. Have you found any information about London?S1: The most famous sites in London are the Tower of London, Westminster Abbey and St. Paul’s Cathedral. But most visitors also want to see the House of Parliament, Buckingham Palace, which is the Queen’s London home.S2: Once, London was a small Roman town on the north bank of the Thames, but slowly it grew into one of the world’s major cities with more than 7 million people. Different areas of London seem to be like different cities. And it also has many big parks, full of trees, flowers and grass. Sitting on the grass in the middle of Hyde Park or Kensington Gardens, you are in the country, miles away.S3: Many people think that London is all gray, but in fact red is London’s favorite color. London is at its best when people are celebrating. Then the flags, the cheering crowds and the carriages and horses all sparkle in the sunshine —if it’s not raining, of course! However, it is often foggy. That’s why it’s called “fog city”. Ask the students to read the passage and do the exercises after the passage.T: “Sightseeing in London”is about a Chinese girl’s first visit to London. It tells us how it would feel to visit London for the first time. Now read and find the answers to the questions after the text.Step ⅡReadingTask 1: Ask the students to read the text to get the main idea.T: Now please read the text and find the answers to the following questions.Show the questions on the screen.1. How did Zhang Pingyu plan her tour?2. What were the buildings mentioned in the text? What were they famous for? Who built them? What happened to them?Sample answers:1. First, she made a list of the sites she wanted to see. Then she planed her four-day trip.2. The buildings mentioned in the text were:Tower, built by Norman invaders of AD 1066, it is a solid, stone, square tower which remained standing for one thousand years; St Paul ’s Cathedral, built after the terrible fire of London in 1666, looked splendid; Westminster Abbey, contains statues in memory of dead poets and writers; Greenwich, the longitude line; Big Ben; Highgate Cemetery; Windsor Castle.Task 2: Ask the students to study the structure of the text “Sightseeing in London ”. Show the following.Task 3: Deal with reading task:A particular British celebrationAsk the students to read the passage quickly for the first time to find out the main idea of the text. Then ask them to read the text again carefully to obtain some details and do the exercises after the text.T: Guy Fawkes Night is celebrated in Britain annually on November 5th. The event is acpanied by firework displays, the lighting of bonfires and the ceremonial effigy-burning of one Guy Fawkes. The origin of this celebration es from the event which took place in 1605 and was a conspiracy known as “The Gunpowder Plot ”, intended to take place on November 5th of that year (the day set for the opening of Parliament). Now read the text and then find the answers to the exercises. Sample answers to Exercise 1:Oct. 10: one of Fawkes ’ Catholic friends, named Catesby, asked him if he would support a plan to change the government and replace it with another.Oct. 27: Fawkes and Cat esby arranged to buy a house close to the Houses of Parliament.The third day 1. High gate Cemetery2. The Library of theBritish Museum3. Windsor CastleGreenwichOct. 28-31: Catesby and Fawkes bought large containers of gunpowder and stored them in the cellar.Nov. 6: the king and all his advisers would be in the parliament for the meeting. Sample answers to Exercise 2:S1: I would not like to be King James, because he kept changing his mind. He would say, “I could not be tolerant of their religion.”And he took actions to stop people believing in Catholic.S2: I would like to be Robert Catesby. He would say like this: The king is never so tolerant of the Catholics. So I decided that a violent action is the only answer. The thing to do was to blow up the Houses of Parliament. In doing so, we would kill the King, maybe even the Prince of Wales, and the Members of Parliament who were making life difficult for the Catholics. And to carry out the plan, Catesby and his men got hold of 36 barrels of gunpowder —and stored them in a cellar, just under the House of Lords.S3: I would be an eyewitness: As the group worked on the plot, it became clear that innocent people would be hurt or killed in the attack, including some people who even fought for more rights for Catholics. Some of the plotters sta rted having second thoughts. One of the group members even sent an anonymous letter warning his friend, Lord Monteagle, to stay away from the Parlia-ment on November 5th.S4: I would not like to be Guy Fawkes. Because he would say, “some of us have betrayed, so we should start the plan in advance.”So he tried to start the fire. Butthe soldiers found him before he could do anything and he was taken to the Tower of London to be killed.S5: If King James had kept his promise, nothing would have happened.Step ⅢHomeworkAsk the students to review the words learnt in this unit.。
Unit 2 第5课时Extensive Reading 导学案泛读材料1:选用教材中Using language中的阅读素材< Sightseeing in London>1.Which scenic spot didn’t Zhang Pingyu visit?A.The Tower of LondonB.Westminster Abbey.C.Big benD.The White House2.What is the Buckingham Palace used for?A.It is used as Queen’s house.B.It is used as King’s house.C.It is used for the goverment.D.It is used for shopping.3.When did the St. Paul’s Cathedral build?A. In 1566B.In 1666C.In 1878D.In 18884.How long did Zhang Pingyu stay?A. 2B.3C.4D.55.What made her thrilled?A.Many cultures displayed in the museum.B.Many visitors came here.C.The imaginary line divides the world into two partsD.She would see the Queen.泛读材料2:选用课外的相关话题的阅读素材,如:A simple piece of clothesline hangs between some environmentally friendly Americans and their neighbors.On one side stand those who see clothes dryers (干衣机) as a waste of energy and a major polluter of the environment. As a result,they are turning to clotheslines as part of the “what-I-can-do environmentalism (环境保护主义).”On the other side are people who are against drying clothes outside,arguing thatclotheslines are unpleasant to look at. They have persuaded Homeowners Associations (HOAs) access the U.S. to ban outdoor clotheslines,because clothesline drying also tends to lower home value in the neighborhood. This has led to a Right-to-Dry Movement that is calling for laws to be passed to protect people’s right to use clotheslines.So far,only three states have laws to protect clothesline. Right-to-Dry supporters argue that there should be more.Matt Reck,37,is the kind of eco-conscious (有生态意识的) person who feeds his trees with bathwater and reuses water drops from his air conditioners to water plants. His family also uses a clothesline. But on July 9,2007,the HOA in Wake Forest,North Carolina,told him that a dissatisfied neighbor had telephoned them about his clothesline. The Recks paid no attention to the warning and still dried their clothes on a line in the yard. “Many people say they are environmentally friendly but they don’t take matters into their own hands,” says Reck. The local HOA has decided not to take any action,unless more neighbors come to them.North Carolina lawmakers are saying that banning clotheslines is not the right thing to do. But HOAs and housing businesses believe that clothesline drying reminds people of poor nei ghborhoods. They worry that if buyers think their future neighbors can’t even afford dryers,housing prices will fall.Environmentalists say such worries are not necessary,and in view of global warming,that idea needs to change. As they say,“The clot hesline is beautiful. Hanging clothes outside should be encouraged. We all have to do at least something to slow down the process of global warming.”1. One of the reasons why supporters of clothes dryers are trying to ban clothesline drying is that ______.A. clothes dryers are more efficientB. clothesline drying reduces home valueC. clothes dryers are energy-savingD. clothesline drying is not allowed in most U.S. states2. Which of the following best describes Matt Reck?A. He is a kind-hearted man.B. He is an impolite man.C. He is an experienced gardener.D. He is a man of social responsibility.3. Who are in favor of clothesline drying?A. Housing businesses.B. Environmentalists.C. Homeowners Associations.D. Reck’s dissatisfied neighbors.4. What is mainly discussed in the text?A. Clothesline drying: a way to save energy and money.B. Clothesline drying: a lost art rediscovered.C. Opposite opinions on clothesline drying.D. Different varieties of clotheslines.泛读材料3:选用课外的相关话题的阅读素材,如:The Queen’s English is now sounding less upper-class, a scientific study of the Queen’s Christmas broadcasts has found. Researchers have studied each of her messages to the Commonwealth countries since 1952 to find out the change in her pronunciation from the noble Upper Received to the Standard Received.Jonathan Harrington,a professor at Germany’s University of Munich,wanted to discover whether accent (口音) changes recorded over the past half century would take place within one person. “As far as I know,there just is nobody else for whom there is this sort of broadcast records,” he said.He said the noble way of pronouncing vowels (元音) had gradually lost ground as the noble upper-class accent over the past years. “Her accent sounds slightly less noble than it did 50 years ago. But these are very,very small and slow changes that we don’t notice from year to year.”“We may be able to relate it to changes in the social classes,” he told The Daily Tele graph,a British newspaper. “In 1952 she would have been heard saying ‘thet men in the bleck het’. Now it would be ‘that man in the black hat’. Similarly she would have spoken of ‘the citay’ and ‘duty’,rather than ‘cite’ and ‘dutee’,and ‘hame’ rather than ‘home’. In the 1950s she would have been ‘lorst’,but by the 1970s ‘lost’.”The Queen’s broadcast is a personal message to the Commonwealth countries. Each Christmas,the10-minute broadcast is put on TV at 3 pm in Britain as many families are recovering from their traditional turkey lunch (传统火鸡午餐).The results were published (发表) in the Journal of Phonetics.1. The Queen’s broadcasts were chosen for the study mainly because ______.A. she has been Queen for many yearsB. she has a less upper-class accent nowC. her speeches are familiar to many peopleD. her speeches have been recorded for 50 years2. Which of the following is an example of a less noble accent in English?A. “duty”B. “cite”C. “hame”D. “lorst”3. We may infer from the text that the Journal of Phonetics is a magazine on ______.A. speech soundsB. Christmas customsC. TV broadcastingD. personal messages4. What is the text mainly about?A. The relationship between accents and social classes.B. The Que en’s Christmas speeches on TV.C. The changes in a person’s accent.D. The recent development of the English language.答案:泛读材料1:DABBA泛读材料2:BDBC泛读材料3:DBAC。