国际交流英语视听说B3U7PPT课件下载推荐.ppt

1、,Questions,Which do you trust more when youre sicknatural medicines from plants or chemical medicines?,Example Answer 1When Im sick,I trust natural medicines from plants more than chemical medicines prescribed by a doctor because plant medicines are milder and less dangerous.,Questions,Which do you

2、trust more when youre sicknatural medicines from plants or chemical medicines?,Example Answer 2When Im sick,I trust chemical medicines prescribed by a doctor more than natural medicines from plants because doctors are very well-educated.They can give me exactly the right medicine for my illness in e

3、xactly the right dosage.,Questions,What do you think the advantages or disadvantages are of knowing which diseases you are more likely to get because of your DNA?,Example Answer 1The advantages of knowing which diseases youre likely to get include being able to watch for those diseases and live a li

4、festyle that will make those diseases less likely.,Questions,What do you think the advantages or disadvantages are of knowing which diseases you are more likely to get because of your DNA?,Example Answer 2The disadvantages of knowing which diseases youre likely to get include having stress and worry

5、 about a disease you may or may not get.,Questions,Exploring the Theme,Unit 7 Traditional and Modern Medicine,Look at the photos and the graphic and read the captions.Then discuss the questions.What information on this page surprises you?How has modern medicine improved patients lives?What is your e

6、xperience with these or other home remedies?,Traditional and Modern Medicine,Green TeaStudies have shown it to be acancer fighter.,Traditional and Modern Medicine,Red Chili PepperEat it when your nose is stuffed-up and youll breathe easily.,Traditional and Modern Medicine,GarlicIt can kill a virus,s

7、o eat it to help prevent colds and flu.,Traditional and Modern Medicine,GingerIts tasty and it prevents travel sickness and other nausea.,Traditional and Modern Medicine,Modern medical engineeringhas made it possible,in some cases,for a blind person to see,a deaf person to hear,and a person without

8、a hand to pick up a key.The patient in this photo is picking up a key with the Proto 1 arm.,Traditional and Modern Medicine,Night falls over lavender（薰衣草）fields in northeast Tasmania.Lavender has been used for hundreds of years as a natural remedy for a variety of health problems including colds and

9、 headaches.,Traditional and Modern Medicine,Proto 1:a U.S.government project to create a better artificial arm.It was able to give its user a sense of touch through connections to the users nerves and to move more like a natural arm.It was the predecessor to the Proto 2 project.Proto 1 义肢计划,Traditio

10、nal and Modern Medicine,What information on this page surprises you?,Example Answers Im surprised that garlic can kill a virus,and lavender flowers are used as medicine.Im also surprised that a high-tech artificial hand can be accurate enough to pick up a key.,Traditional and Modern Medicine,How has

11、 modern medicine improved patients lives?,Example Answers Modern medicine has improved patients lives in many ways.Antibiotics can keep people from dying from an infection.Other medicines can help keep diabetes from damaging peoples bodies.Surgery can help people with heart disease to live longer,an

12、d can sometimes remove cancer from the body.,Traditional and Modern Medicine,What is your experience with these or other home remedies?,Example Answers I drink a lot of green tea because I like the taste and because its supposed to be good for the body.Ive also used eaten ginger when my stomach does

13、nt feel well.I havent tried garlic to cure a cold or chili peppers when my nose is stuffed up,but I like both foods,so Ill eat them the next time I have a cold.Another home remedy I know is to take a spoonful of honey for a sore throat,or to eat a soup made with ginseng to warm up and improve blood

14、circulation.,Traditional and Modern Medicine,Analytical Listening,Unit 7 Traditional and Modern Medicine,empirical a.以科学实验（经验）为依据的；经验主义的Sullivan 沙利文（人名）chicory n.菊苣periwinkle n.长春花medication n.药物，药剂variable n.变量inhibit v.抑制，约束,Listening 1,A medication used to treat heart disease comes from the leave

15、s of the digitalis plant（洋地黄）.,Listening 1,Before Listening,Listening 1,A|Understanding Listener Response.Read and listen to part of a conversation in a professors office.,A|Understanding Listener Response.,Listening 1,Professor:First of all,it costs a lot of money to develop any new drug,and then t

16、o do empirical studies on it and get government approval.Its just a long,expensive process.Student:Sure,but isnt it worth it if the new drug can save lives?,B|Discussion.Discuss the questions with a partner.,Listening 1,1.Is the professor explaining benefits or problems connected with new drug devel

17、opment?2.What do you think is the purpose of the students question?,Example Answers The professor is explaining problems associated with new drug development.,1.Is the professor explaining benefits or problems connected with new drug development?,Listening 1,Example Answers The students purpose is t

18、o get clarification about something he doesnt understand.,2.What do you think is the purpose of the students question?,Listening 1,In some listening situations,were not expected to do anything except understand the speaker.In other situations,however,its important to respond to what we hear.Asking q

19、uestions while listening makes us active participants in the conversation or presentation.We might ask questions to get clarification,to give a reaction such as surprise or interest,or to add new ideas.,Listening 1,C|Asking Questions.Take turns saying the sentences below to your partner.Then your pa

20、rtner should respond to each sentence with a question.Try to ask different types of questions（clarification,reaction,new idea）.,Listening 1,C|Asking Questions.,Listening 1,1.I heard that theres a bad virus going around.2.I felt awful yesterday,so I tried a natural remedy.3.My chemistry course is a l

21、ot of work,but its really interesting.4.I dont know what to do.My paper is not going to be finished on Friday.5.A new restaurant opened up in my neighborhood.6.My father got a promotion at work.,C|Asking Questions.,Listening 1,Example Answers1.A:I heard that theres a bad virus going around.B:What ki

22、nd of symptoms are people getting?2.A:I felt awful yesterday,so I tried a natural remedy.B:Did it work?3.A:My chemistry course is a lot of work,but its really interesting.B:What have you been learning about?,To be continued,C|Asking Questions.,Listening 1,Example Answers4.A:I dont know what to do.My

23、 paper is not going to be finished on Friday.B:Have you talked to your professor about it?5.A:A new restaurant opened up in my neighborhood.B:What kind of restaurant is it?6.A:My father got a promotion at work.B:Will he be working more now?,A|Listening for Main Ideas.Read the questions.Then listen t

24、o the whole conversation between the professor and the student and answer the questions.,A Conversation in a Professors Office,Listening,Listening 1,1.Why has the student gone to talk with the professor?_,To be continued,The student has gone to talk with the professor because he has some questions a

25、bout the lecture the professor gave.,A|Listening for Main Ideas.,Listening 1,2.What questions does the student ask while the professor is giving her explanation?a.Sure,but isnt it worth it if the new drug can save lives?b._ _c._ _d._ _,Do those things really make a difference?,Can medicines actually

26、 kill people?,Are those clinical trials expensive.,B|Listening for Details.Listen again and complete the students notes.,Developing new drugs from plants:Problems1.studies（$）_2.government _（takes a long time）3.many variables w/trad._a.might get the wrong _ of plantb.might pick at wrong _c.（age）plant

27、 might be too _d._ might be growing nearby,Listening 1,To be continued,cost a lot of money,approval,remedies,sub-species,time of day,wrong,some other plant,B|Listening for Details.Listen again and complete the students notes.,Scientists1.must identify active _ from plant2.same _ in tablet or injecti

28、on3.test drugs effects with large _ trials,Listening 1,chemical,amount,clinical,Listening 1,After Listening,Critical Thinking.Discuss the questions with your partner.,1.Why is it so difficult to develop new medications from plant-based remedies?Use the notes as well as your own words and ideas.2.Tra

29、ditional Chinese Medicine（TCM）is quite popular in China.Do you think it is effective?,Example Answers Its difficult to develop new medicines from plant-based remedies for a number of reasons.First,the cost of doing studies of the drug is high,and it can take a long time to get government approval.There are also many variables when it comes to plants,so its important to find the right sub-species of the plant,pick it at the right age an