Module 5Unit 1 Great Scientists教学设计07.docx

1、Module 5 Unit 1 Great Scientists教学设计07Module 5 Unit 1 Great ScientistsReading: John Snow Defeats “King Cholera”Class type: readingClass Duration: 40 minutes1. Teaching content analysisThe reading material is from PEP NSEFC Module5 Unit1-Great Scientists. The topic of this reading passage is the proc

2、ess of defeating cholera by John Snow. The passage follows the steps of scientific research: find a problemmake a questionthink of a methodcollect dataanalyze datafind supporting evidencedraw a conclusion. The first paragraph finds a problem: What is the cause of cholera? The second paragraph raises

3、 a question: Does people absorb cholera into their bodies with their meals? Then, in the third paragraph, it describes the method of collecting data on those who fell ill or died and where they lived, and the process of collecting data. The fourth paragraph talks about that John Snow put information

4、 on a map to find out where people died or did not die. In the para.5, he found out where they got water and analyzed the water to see if it is the cause of the deaths. In the next paragraph, John Snow found other evidence to support the analysis. Finally, he drew a conclusion that it was certain th

5、at polluted water carried the virus. From this passage, students can get familiar with how to organize scientific research. Moreover, in recent years, this kind of infectious diseases, such as H7N9 and ZIKA, happens quite often, which has raised a lot of concerns. The passage also has practical sign

6、ificance to students.2. Learner analysisAs high school students, the students have little previous knowledge about cholera because it happens much less than before and was far from their daily life. In order to make the lesson more fluent, the background information should be presented. The students

7、 in my class are not active so that interesting activities should be designed to motivate them.3. Teaching key and difficult pointsKey points: some key words and phrases: expert, attend, suggest, absorb, suspect, defeat, expose, linkneither nor, be to blame, be determined to do, look into, etc. gras

8、p the structure of the text and understand the content.train reading skills: predicting, skimming, scanning.Difficult points: make clear about the correct stages about scientific research. develop students independent-study ability with the help of reading skills.4. Teaching objectivesa. Language kn

9、owledge and skillsBy the end of this lesson, students will be able tomaster some key words and phrases: expert, attend, suggest, absorb, suspect, defeat, expose, link, neither nor, be to blame, be determined to do, look into, etc.predict the main idea of the reading passage according to the title.gr

10、asp the structure of the text by skimming.find out some specific information about the passage by scanning.b. Learning process and methodsBy the end of this lesson, students will be able tolearn autonomously and cooperatively in different activities before, during and after municate actively with th

11、eir partners in making clear about the correct stages about scientific research.c. Emotions and valuesBy the end of this lesson, students will be able tomake clear about the correct stages about scientific research.understand and be grateful to the contributions made by great scientists.5. Teaching

12、methods and aidsTeaching methods: Three-stage module; Task-based Language Teaching; Active Exploration MethodTeaching aid: PPT6. Teaching processStage 1 Pre-reading (6 minutes)Activity 1 ( 1 minute)Demonstrate: Pictures of ZIKA. Whats wrong with them? What will happen to the person if dangerous germ

13、s or viruses attacked him?(Show the noun phrase: infectious diseases)Activity 2 ( 1 minute)Brainstorming: Do you know any infectious diseases in the 21st century?(Show some pictures of these diseases: SARS; H7N9; EBOLA; ZIKA.)Activity 3 ( 2 minutes)Scanning： An infectious disease in the 19th century

14、?(Introduce “Cholera” and “King Cholera”.) Who is John Snow?Justifications: these activities are designed to raise students interest when they list some infectious diseases and lead in the topic of Cholera and John Snow.T:Good morning, class. During the break-time, we have watched a piece of news ab

15、out ZIKA virus. (黑板：virus; it is bad for our health) Do you notice these babies in the news? Whats wrong with them?(呈现两张baby的图片，请学生回答)Look at their heads. They look quite unusual, right? Because they are infected by ZIKA virus. (黑板：be infected by; ) This virus has caused the 29 deaths. If such virus

16、es or dangerous germs attack and spread among people, or we can say thousands of people are exposed to them, we call this kind of disease infectious diseases.(黑板：be exposed to)Do you know any other infectious disease in the 21st century? You can discuss with your partner.(学生讨论回答)Any volunteers? Put

17、your hands up.(学生举出例子后，追问When did it break out? Which country was hit seriously?) (ppt顺序：SARS H7N9 EBOLA ZIKA)These infectious diseases broke out in the 21st century, right? And do you know in the 19th century an infectious disease caused so many thousands of deaths?(学生如果回答不出，please read the title o

18、f passage on page 2)Yes, it was cholera. Cholera is one of infectious diseases. It can be mild or even without symptoms(征兆), but a severe case can lead to death without immediate treatment(治疗).(黑板：severe；it means extremely bad.)But why did the title call it “King Cholera”? Can you find the reason in

19、 the para.1?(1. This was the deadly disease of its day.)(2. Neither its cause nor its cure was understood.)(3. So many thousands of terrified people died every time there was an outbreak.)Although it is King Cholera, it was still defeated by a great person. Who is he?(John Snow)Do you know anything

20、about John Snow?(学生：a famous doctor in London; an expert; Queen Victorias personal physician)(黑板：expert; it can a noun: a person of special skill or an adjective, skillful.)Here is some other information about John Snow. We can see that he had a short life, but he made great achievement. John Snow i

21、s one of the fathers of epidemiology (流行病学), because of his work in finding the cause of a cholera outbreak in England, in 1854. Now lets learn how John Snow defeats “King Cholera”.Activity 4 (1 minute)Predict the main idea of the text according to the title. Whats the main idea of the passage?A. Jo

22、hn Snow was a well-known doctor in London.B. The cause of Cholera was polluted water.C. The source of all drinking water should be examined.D. How did John Snow collect, analyze data and find the cause of the disease and solved it.(Answer: D)Activity 5 (1 minute)Put into correct order.Find a problem

23、make a questionthink of a methodcollect dataanalyze datafind supporting evidencedraw a conclusionJustifications: these activities are designed to train students predicting skill and to lay the foundation for the reading habit.T:First of all, lets read the title again.From the title, can you choose t

24、he main idea of this passage?(学生阅读四个选项做出选择。)Which one is the main idea of this passage? (邀请学生回答)Great! The main idea of this passage is about how John Snow collected, analyzed data and found cause of the disease and solved it.John Snow wanted to save those people who are exposed to cholera. So he be

25、gan to do a scientific research. We all know that when we do a research, there are some stages to follow. Generally speaking, there are seven stages of the scientific research. Can you put them into a right order?(学生回答；若没有正确答案，则跳过，之后处理。如果学生答出，在黑板上写下7步骤)(黑板：problem; question; method; collecting; anal

26、ysis; evidence; conclusion)Stage 2 While- reading (27 minutes)Activity 6 (minutes)Para.1Q: What is the first thing to do if John Snow wants to control cholera?A: The first thing to do is to find the cause of cholera.(Stage1)Activity 7 (minutes)Read Para.2, and find two theories. Fill in the blanks.T

27、wo theories:1. Cholera multiplied in the air. A cloud of dangerous gas until it found its victims.2. People absorbed this disease into their bodies with their meals.(Stage2)Activity 8 (minutes)Para.3Q: How to prove(证明) the 2nd theory is correct?A: By making an enquiry. Where did he collect data or g

28、ather information?In the poor neighborhood.Activity 9 (minutes)Para.4&5: Complete the chart.Q: Did John Snow foresee the results? What did he discover? Why was the water in the pump to blame? Can you use your own words?Activity 10 (minutes)Para.6Can you help John Snow to complete this death record?Q

29、: But do you notice the last sentence in para.6? What does it talk about?Activity 11 (minutes)Para.7Q: What did John Snow suggest?Justifications: these activities are designed to train the skill of close-reading. Students can understand the whole process of John Snows scientific research step by ste

30、p.T:So in this research, what is the first thing to do if John Snow wants to control cholera?(学生若回答不出，提示：read the last sentence of the first paragraph.)The first thing to do is to find the cause of cholera. Here, we have found the problem of this research: What is the cause of cholera? This is the S

31、tage 1: Find a problem.(黑板：在problem旁写Para.1)John began to guess the reason. Then two theories attracted him. What are they?(给学生阅读第二段的时间，邀请学生完成填空)(Cholera multiplied in the air. A cloud of dangerous gas until it found its victims.)“Multiplied” here means “greatly increased”. “Victims” means “someone was attacked by cholera”.(People absorbed this disease into their bodies with the meals.)“Absorb.into” means “take in ” Which theory does John Snow want to prove?(Ss: second one)How do you know that?(John Snow suspected that the second theory was correct.)Great! So here John Snow made a qu