新视野大学英语1教案U5.docx

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1、新视野大学英语1教案U5新视野大学英语(第二版)1BOOK One (The Second Edition)Unit 5The Battle Against AIDSI .Aims:Students will be able to:1. grasp the main idea and structure of the text;2. appreciate the narrative skills demonstrated in the text;3. master the key language points and grammatical structures in the text;4.

2、 conduct a series of reading, listening, speaking and writing activities related tothe theme of the unit.II. New Lexis:AIDS acquire immune deficiency syndrome diagnose infect HIV virus rural constitute segment alarm federal implement organization emerge combat resource creative educational client pu

3、blication appointment educate literacy literature solve illustrate establish buster risk pressure define redefine marital plague establishment emphasize regardless solution crisis cure represent epidemic threaten racial distract efficiencybe infected with in place of suffer from hand out set up at r

4、isk regardless of guard against wipe out distract sb. from sth. sign up forIII. Structure:1. To solve this problems, ask people in the community to create low-1iteracy AIDS education publications.2been slow in implementing programs to stop the spread of AIDS.IV. Pre-reading Activities1. What is AIDS

5、?Acquired Immure Deficiency Syndrome （后天性免疫缺陷综合症）.It is a disease that limits the body s ability to fight infection. A person with AIDS has a very weak immune system, turning normally mild or rare diseases into potentially fatal !新视野大学英语（第二版）1conditions.2. What is HIV?Human Immunodeficiency Virus （人

6、类免疫缺陷病毒）.AIDS is different from HIV in that the former usually causes death while HIV may lead to AIDS.3. What do you know about World AIDS Day?December, 1st was established as World AIDS Day in 1988. It is the international day of coordinate action （协调彳丁切,against AIDS.4. How many ways can HIV sprea

7、d?contact with infected bloodmother-to-chiId sex5. Who is most 1ikely to become infected?Anyone can become infected with HIV. HIV is transmitted sexually or through drug use by contaminated blood.V. Background Information:What does the Red Ribbon stand for?It is an international symbol （标忐）of AIDS a

8、wareness. People wear the ribbon, particularly around World AIDS Day, to show care and concern （关注） about HIV and AIDS.What We Still Don t Know About AIDSIn the 2 0 years since the first cases of AIDS were detected, scientists say they have learned more about this virall） disease than any other.Yet

9、Peter Piot, who directs the United Nations AIDS program, and Stefano Vella of Rome, president of the International AIDS Society, and other experts say reviewing unanswered questions could prove useful as a measure of progress for AIDS and other diseases.Among the important broader scientific questio

10、ns that remain：Why does AIDS predispose infected persons to certain types of cancer and infections?A long-standing belief is that cancer cells constantly develop and are heldthat belief. non-Hodgkins lung, the mostimmune system,in check by a healthy immune2) system. But AIDS has challenged People wi

11、th AIDS are much more prone3) to certain cancers like lymphomas and Kaposi s sarcoma4), but not to breast, colon and common cancers 2新视野大学英语(第二版)1in the United States. This pattern suggests that an impaired at least the type that occurs in AIDS, does not allow common cancers to develop.What route do

12、es HIV take after it enters the body to destroy the immune system?When HIV is transmitted sexually, the virus must cross a tissue barrier to enter the body. How that happens is still unclear. The virus might invade directly or be carried by a series of different kinds of cells.Eventually HIV travels

13、 through lymph5) vessels6) to lymph nodes and the rest of the lymph system. But what is not known is how the virus proceeds to destroy the bodys CD-4 cells that are needed to combat invading infectious agents.How does HIV subvert the immune?) sys-tem?Although HIV kills the immune cells sent to kill

14、the virus, there is widespread variation in the rate at which HIV infected people become ill with AIDS. So scientists ask： Can the elements of the immune system responsible for that variability be identified? If so, can they be used to stop progression to AIDS in infected individuals and possibly pr

15、event infection in the first place?What is the most effective anti-HlV therapy?In theory, early treatment should offer the best chance of preserving immune function. But the new drugs do not completely eliminate HIV from the body so the medicines, which can have dangerous side effects, will have to

16、be taken for a lifetime and perhaps changed to combat resistance. The new policy is expected to recommend that treatment be deferred until there are signs the immune system is weakening.Is a vaccine8） possible?There is little question that an effective vaccine is crucial to controlling the epidemic9

17、）. Yet only one has reached the stage of full testing, and there is wide controversy over the degree of protection it will provide. HIV strains that are transmitted in various areas of the world differ genetically. It is not known whether a vaccine derived from one type of HIV will confer protection

18、 against other types.In the absence of a vaccine, how can HIV be stopped?Without more incisivelO）, focused behavioral research, prevention messages alone will not stop the global epidemic.Stage I PresentationA. Vocabulary1. acquire vt. get by skill or ability, by ones own efforts or behavior（由技术、能力、

19、努力或行为而）获得;学到acquire a good knowledge of English 熟谙英文acquire a reputation for dishonesty 蒙上不诚实恶名acquire a taste for brandy养成喝白兰地的嗜好3新视野大学英语（第二版）12. immune: abe immune to sth. /sb对.有免疫力;不受.影响This blood test will show whether or not youre immune to the disease.这次验血将表明你对这种病是否有免疫。I am immune to the noise

20、 from the factory.我对那家工厂的噪音已习以为常了。3. diagnose 诊断vt. diagnose sb. with diagnose + illness/sb. s condition as The woman is diagnosed with diabetes （糖尿病）.The doctor diagnosed the illness as cancer.4. infect: vt. cause others to have a disease or illness; affect; influencebe infected with: make someone

21、get a diseaseHe infects everyone around him with his enthusiasm.他的热情感染了身边的每个人。It is estimated that over thirty mi 1lion people are now infected with the virus,估计目前有超过3, 000万人感染上了该病毒。5. constitute vt. form sth. from partsHow many students constitute your study group?Twelve months constitute a year.6.

22、 alarmvt. cause sudden fear or worry; give a warning or feeling of danger to使恐慌,使担忧;警告枪声惊动了千百只鸟。The noise of the shot alarmed hundreds of birds.n.U sudden fear and worry 恐慌,担忧;C a piece of equipment that warns people about danger, the time, etc. 报器;闹钟a fire alarm 火警set the alarm (-clock) for 6 clock

23、 把闹钟拨到 6 点e. g. Ue jumped up in alarm.他惊慌地跳了起来。7. organizationn. a group of people with a special purposeWhat do these organizations mean?WHO World Health OrganizationOPEC Organization of Petroleum Exporting Countries4新视野大学英语（第二版）1NATO North Atlantic Treaty OrganizationFAO Food and Agriculture Organ

24、ization of the United Nation联合国粮农组织UNESCO United Nationst Educational, Scientific and Cultural Organization 联合国教科文组织8. emergevi. come to appearThe sun emerged from behind a cloud.vi. become knownDifferent ideas emerged in the heated discussion.9. illustratevt. make clear by giving pictures or exampl

25、esThese graphs illustrate the results of the experiment.他用统计数据来说明观点。He illustrated his point with statistics.10. riskvt. place in dangerThe soldier risked his life to save the drowning girl.士兵冒着生命危险去救落水的女孩。n. dangerThe disease is spreading, and all children under 5 are at risk.疾病在蔓延,5岁以下的儿童都有被传染的危险。

26、More phrasesat risk: in danger 处境危险take/run the risk of (doing) sth.冒着的危险at any risk , at all risks不管冒什么风险at the risk of (doing) sth.冒着的危险take/run the risk to do sth. 冒险which is right?1) I am risking my job. T2) I am taking the risk of losing my job. T3) I am at the risk of losing my job. F11. distr

27、act sb. from sth. = take sb. s attention from sth. 使分心Most Chinese parents think puppy love will distract their children from their school work.多数中国父母认为早恋会让孩子学习分心。新视野大学英语(第二版)1街上的嘈杂声使我不能专心读书。The noise in the street distracted me from my reading.12. sign up for=put ones name on a list to take part in

28、 sth, 玻名参加上个学期她报名参加了青年志愿者组织。She signed up for the Young Volunteer team last semester.B. Text Study1. Part Division of the Text2. Structure AnalysisA. The Writing Model of the Passage:Problem + Solution + Evaluation + Summary The basic structure of this pattern is problem-solution-evaluation. There a

29、re some possible differences in the pattern but the basic parts are problems and solutions.Now, find the problem, solution and evaluation of this passage.problems1. AIDS has killed many Americans, and still many with the HIV virus are expected to die. (Para. 1)2. Women and youth in some communities

30、are making up the fastest segment of people with AIDS. (Para. 2)3. American governments have been slow in stopping the spread of the disease. (Para. 3)SolutionsA number of local organizations have emerged. The South Carolina AIDS Education Network is one of them. (Paras. 3-4)6新视野大学英语（第二版）14. The org

31、anization operates its educational programs out of a beauty shop. (Paras. 4-5)5. The network began helping the hair stylists set up similar programs in their shops. (Para. 6)6. It has developed several techniques useful to other groups doing similar work. (Para. 7)a. Speak to your community in a way

32、 they can hear. (Paras. 8-9)b. Train teenagers to educate their peers. (Para. 10)c. Redefine “at risk“ to include women from different backgrounds and marriagestatus. (Paras. 11-12)EvaluationThese programs are not the only solutions to the crisis but, until there is a cure for AIDS, they are only sa

33、fe measures against the virus. (Para. 13)SummaryWe must not let cultural, racial, or social barriers distract us from the job that must be done. Nor can we let political inefficiency stop us from our task. Everyone must become an educator and learn to live. (Para. 14)B. The way to develop paragraphs

34、:A General Statement + Problem-solution-evaluationThe writer lists some ways of winning the war against AIDS. Each method is presented in a general statement. He tries to argue for idea in a problemsolution-evaluation way.Train teenagers to educate their peers.The problem The solution The evaluation

35、The problem AIDS is spreading fastest among teenagers in the rural South.The solution Establish an AIDS Busters program. The program trains youth（from 8 to 26） to go into the community and teach AIDSlessons to their peers.The evaluationa. Young people make the lessons simple.b. They explain the risk

36、 of catching AIDS to their friends much better than an adult can.c. They help parents understand the peer pressure their children experience.Method 1 & 3 are developed in the same way. Work with your partner and find the details.7新视野大学英语（第二版）13. Difficult sentences1. To solve this problem, ask peopl

37、e in the community who can draw wel1 to create low- literacy AIDS education publications.sb/sth + attributive clauseI dont like the way he talks to others.More PracticeIM11 never forget the city我和玛丽在那里度过童年时光）.（全家人认为这是个了不 起的荣誉）.we need to educate, since What do “they and “people refer to?They = These

38、 books, people = the pictures这些书籍也展示一些看上去和那些需要接受教育的人很相似的图片,3. such alarming numbers, the federal and state governments have always been slow in implementing programs to stop the spread of AIDS.Despite.,尽管,还是Despite a lot of difficulties, he managed to finish the work within three weeks,尽管有许多困难,他还是设法

39、在三周内完成了工作。Ue failed in the exam a third time despite his continuous hard working.他第三次考试未通过,尽管他一直都很努力。4. Like no other plague before, the AIDS epidemic threatens to wipe out an entireleave sth./sb. .让某人/物处于某状态The trial left a lot of questions unanswered.Dont leave her waiting outside in the rain.别让她在

40、外边雨中等着。I wish youd stop leaving the door open. Its cold outside.外面那么冷,我希望你不要再让门开着。(L65)Sth. /Sb. is ，是,电脑是种电子装置,这种装置能够储存信息并能根据一套被称为程序的指令做事情。好老师是那些能够引起学习者学习兴趣的老师。A computer is an electric machine that can store information and do things with it according to a set of instructions called a program.The

41、greatest teachers are the ones who can arouse students interests to learn. 8新视野大学英语(第二版)1Stage II ReproductionGroup work. Suppose you are committee members of the South Carolina AIDS Education Network. Now a meeting is being held to find solutions to the spread of AIDS. After the meeting, send your

42、representative to report your solutions, which are expected to be reasonable, convincing and effective. Make good use of the information in Section A.After discussion, wewve worked out some solutions to the problems we are faced with. To begin with, immediate actions should be taken to collect money

43、 to keep our organization goingStagelll SummarySince it was diagnosed in 1970s, AIDS has killed thousands of Americans. Women and youth in rural Southern communities are most likely to be infected with AIDS. In place of the spread of AIDS and lack of government activity to stop it, some local organi

44、zations emerged. The South Carolina AIDS Education Network formed to help reduce the number of AIDS cases. In some communities, handing out AIDS literature and expecting people to read it is not very effective because many people cannot read. Besides, AIDS is spreading fastest among teenagers in the

45、 rural South. So these groups have developed some best methods of combating the spread of AIDS, which include: speak to your community in a way they can hear; train teenagers to educate their peers; and redefine “at risk“ to include women from different backgrounds and marriage status. In other word

46、s, everyone should sign up for the war against AIDS.StagelV Practical Writing Invitation较正式的宴会请柬多用于隆重的社交场合,因此行文中不使用第一人称I或we,而使 用第三人称,如Mr,等。英文请柬常在最后加上R. S. V. P.,是法文repondez s9 il vous plait的缩写,意思是Please replyoSample 1Mr. Sun Zhiwei requests the pleasure of the company of Mr. and Mrs. Zhang Hua to di

47、nner 7:00 p. m. on Friday, 18th January at Room 402, 102 Jianguo Road (W) R. S. V. P.Sample 1谨定于一月十八日星期五下午七时在建国路102号402室举行晚宴。9新视野大学英语（第二版）1敬请张华先生和夫人光临。孙志伟李翔先生:兹定于二零零九年五月五日星期F!上午十一点在和平饭店举行女儿孙佳与张汉先生的婚 礼。敬请光临孙志军敬约赵梅Sample 2Mr. and Mrs. Li Xiang accept with pleasure Mr. and Mrs. Sun Zhijun s kind invita

48、tion to the wedding reception of their daughter Sun Jia and Mr. Zhang Han Sunday, the fifth of May at eleven clock forenoon Peace Hotel.以上是对结婚请柬的回复。此信也可简化如下:Mr. and Mrs. Li Xiang accept with pleasure Mr. and Mrs. Sun Zhijuns kind invitation for Sunday, the fifth of May.Sample 2Mr. and Mrs. Li Xiang regret that they will be unable to accept Mr. and Mrs. Sun Z