高中英语同步经典教案：unit 1 great scientists period 2（人教版必修5）.doc

《高中英语同步经典教案：unit 1 great scientists period 2（人教版必修5）.doc》由会员分享，可在线阅读，更多相关《高中英语同步经典教案：unit 1 great scientists period 2（人教版必修5）.doc（7页珍藏版）》请在淘文阁 - 分享文档赚钱的网站上搜索。

1、 Period 2ReadingThe General Idea of This PeriodThis is the second period of this unit. This period focuses on the reading passage, which is about John Snow and King Cholera. At the beginning of the period, the teacher can design some activities to draw the students attention to read. In order to att

2、ract the students attention, the teacher had better offer the students the opportunities to have a competition about some information about some scientists mentioned in the Warming up. Then the teacher can make full use of the questions in the Pre-reading. This step is designed to make for preparing

3、 for understanding the passage.Reading skills are very important for senior students. For the first reading, we intend to cultivate Ss skimming ability and scanning ability. First ask the students to scan it and tick out what.are mentioned in the passage. Then let the students read fast to find out

4、the main idea of each paragraph. In order to stimulate Ss to take part in the class activity more actively, the teacher can organize a group competition to see which group can finish the task fastest and best. For the second reading, the students are expected to know some details about the passage.

5、Later on, the teacher will present some questions for the students to answer and at the same time they are asked to finish filling in the chart. The third time is to read for further information. This part is designed to get Ss into the habit of reading a passage as a whole, that is, to get the gene

6、ral idea. Another purpose of this part is to ask Ss to pay attention to the details.To develop Ss further understanding ability, the teacher can design some questions, whose answers are beyond lines. So the teacher will help them to read between the lines, thus Ss can gradually get the ability to un

7、derstand the implied meanings. In this step, the teacher asks Ss to read it again in order to make them think about the organization of the whole passage, and this method can help them not only in their understanding this passage but also in writing a short passage.To consolidate the content of the

8、passage, Ss are required to retell it according to the main idea. In order to arouse the Ss interest; the teacher can hold a competition between groups. After the students understand the whole passage, they are asked to have a topic discussion.Teaching Important PointsHave a good understanding of th

9、e text by doing the exercises.Get the students to learn different reading skills, especially gist reading and comprehending beyond lines.Teaching DifficultiesKnow the meanings between lines and beyond lines.Learn different reading skills for different reading purposes.Teaching AidsMulti-media classr

10、oom and other normal teaching tools.Three Dimensional Teaching AimsKnowledge AimHave a good understanding of the text through the exercises.Ability AimsGrasp some reading skills.Develop the ability to describe some famous scientists.Emotional AimsEncourage the students to work hard at their lessons

11、in order to devote themselves to science.Teaching ProcedureStep 1 GreetingT: Hello, my friends.Ss: Hello, Miss Yang.Step 2 RevisionT: Yesterday we talked a lot about great scientists. Now Id like you to answer some questions to see how much you remember about them. Lets come to a group competition.

12、If you know the answer, you can just stand up. If you get your answer right, Ill give you ten marks. Are you ready? Listen carefully. Which scientist discovered that objects in water are lifted up by a force that helps them float? Any volunteer?S: Archimedes.T: Right. Who wrote a book explaining how

13、 animals and plants developed as the environment changed?S: Charles Darwin.T: Yes. Do you still remember the title of the book?S: On the Origin of Species.T: Very good. Who invented the first steam engine?S: James Watt.T: Youve done a good job. Who used peas to show how physical characteristics are

14、passed from parents to their children? S: Gregor Mendel.T: Can you say something about him?S: OK.His research gave birth to the science of genetics.T: Well done.Who discovered radium?S: Madame Curie.T: Yes, we know she is a great woman scientist. We should remember what she said. Life is not easy fo

15、r any of us. We must work, and above all we must believe in ourselves. We must believe that each one of us is able to do something well, and that, when we discover what this something is, we must work hard at it until we succeed.T: Who invented the way of giving electricity to everybody in large cit

16、ies?S: Faraday.T: You are right. Who was the painter that studied dead bodies to improve his painting of people?S: Leonardo da Vinci.T: Yes. Who invented a lamp to keep miners safe underground?S: Humphrey Davy.T: Who invented the earliest instrument to tell people where earthquakes happened?S: Zhang

17、 Heng.T: Do you know what he invented?S: He invented seismograph.T: Who put forward a theory about black holes?S: Stephen Hawking.T: He wrote a famous book. Whats the title of it?S: A Brief History of Time.T: All of you did a good job. For the time being, the first/second.group won the competition.

18、But there are a lot of chances for you to catch. We will continue our competition later.Step 3 New Words T: Today we are going to read a new passage about another scientist named John Snow. First lets come to new words first. Here are some definitions of some of the words from this text. Please work

19、 in pairs and match the words with their definitions. A. attendB. controlC handleD. blameE. absorbF. announceG. immediatelyH. be linked toI. in additionJ. expose1.have control, authority, power over2.part of a tool, bucket, drawer, etc.by which it may be held in the hand3.take or suck in4.at once or

20、 without delay5.uncover, leave uncovered or unprotected6.as well, besides7.be joined with, be connected with8.wait on, serve, look after9.fix on sb. the responsibility for sth. done or not done10.make knownSuggested answers: B1C2E3G4J5I6H7A8D9F10Step 4 Pre-readingT: There are so many scientists that

21、 we cant count them. But all the scientists must have their scientific attitude and scientific way to do scientific research. Now open your books on Page 1.Look at the questions in Pre-reading quickly and discuss them with your partner in two minutes.(Teacher gives the students two minutes to discus

22、s. After that, the teacher asks them to answer the three questions.)T: First, lets talk about infectious diseases. Can you name some? Lets come to a group competition again. If you get your answer right, Ill give you ten marks.Ss: Bird flu, SARS, cholera.T: What do you know about cholera?S: Cholera

23、was a 19th century disease. S: Cholera was spread by germs.S: It was the most deadly disease of its day.S: People who are infected with it will be easy to die.S: . T: Excellent. Now, lets come to Question 2.How can we prove a new idea in scientific research? What order would you put them in?Ss: find

24、 a problemmake up a questionthink of a methodcollect resultsanalyse the resultsrepeat if necessarydraw a conclusion.Step 5 ReadingFirst reading: ScanningT: Here is another great scientist. Maybe you are not familiar with him. Look at his picture on Page 2.John Snow was the great scientist who defeat

25、ed King Cholera. Scan the passage and tick out what are mentioned in the passage? I will give you two minutes.(1) John Snows wish(2) John Snows attending Queen Victoria(3) two theories explaining the cause of Cholera(4) John Snows examination of the source of the water(5) evidence for the cause of C

26、holera(6) the source of all water supplies(7) the spread of Cholera by germs in polluted waterSuggested answers: (1) (3) (4) (5) (7) are mentioned in the passage.Second reading: Skimming to find out the main idea for each paragraphT: Skim each paragraph and find out the main idea for each one. When

27、you want to find the main idea of each paragraph, you especially pay attention to the first sentence and the last one, which may help you find the main idea quickly. I will give you three minutes to do it.(The teacher offers three minutes for the students to do it. Later asks some students to answer

28、.)Suggested answers: Third reading: Detailed-reading to answer questionsT: Now, lets read the passage carefully to learn about more details. Later I will let you answer some questions and fill in the chart. Lets come to a group competition again. If you get your answer right, Ill give you twenty mar

29、ks.Scientific Report by John SnowThe problemThe causeIdea 1Idea 2The methodThe resultsIdea 1 or 2? Why?The conclusion1. What problem existed in London at his time?2. How did cholera kill people?3. How did he prove the second theory was correct?4. What was the result after he looked into the cause of

30、 cholera?5. Which idea was right? Why?6. What conclusion did he draw?Suggested answers: Scientific Report by John SnowThe problemThousands of people died of cholera every time there was an outbreak. Neither its cause, nor its cure was understood.The causeIdea 1 Cholera multiplied in the air without

31、reason.Idea 2 People absorbed this disease into their bodies with their meals.The methodHe began to gather the information. He marked on a map where all the dead people had lived and the map gave a valuable clue about the cause of the disease. He looked into the source of the water.The resultsPollut

32、ed water carried the disease. People who drank the polluted water died of Cholera.Idea 1 or 2?Why?Idea 2 is correct. He found two other deaths in another part of London that were linked to the polluted water. With this extra evidence, he was able to announce that polluted water carried the disease.T

33、he conclusion“King Cholera” was defeated.Fourth Reading: Further understandingT: From the passage, we know that John Snow believed that Idea 2 was right. How did he finally prove it? If you get your answer right, Ill give you thirty marks.Ss: John Snow believed in the second theory but needed to pro

34、ve he was correct. So when another outbreak hit London in 1854 and it spread quickly through the poor neighbourhoods, he began to gather the information. He determined to find out why. He marked on a map where all the dead people had lived and the map gave a valuable clue about the cause of the dise

35、ase. He looked into the source of the water for Broad Street and Cambridge Street. He had shown that cholera was spread by germs and not in a cloud of gas. In addition, he found two other deaths in another part of London that were linked to the Broad Street outbreak. They died of cholera after drink

36、ing the polluted water. With extra evidence, he was able to announce that polluted water carried the disease. Finally King Cholera was defeated.T: You really did a good job. Do you think John Snow would have solved this problem without the map? Why? If you get your answer right, Ill give you thirty

37、marks.S: I think he would have solved the problem .But he would spend more time in testing the two theories and it would be more difficult for him to look into the cause of cholera.(The teacher should give them about two minutes to discuss, and join in the discussion at the same time. After that, th

38、e students will be asked to show their opinions to the whole class.)Step 6 ConsolidationT: In this period, we have learned a lot about John Snow and King Cholera. What have you learned from it? I will give you one minute to prepare for it. If your sentence is quite good, Ill give you thirty marks.(A

39、fter one minute.)S1: John Snow was a well-known doctor in London.S2: He attended Queen Victoria to ease the birth of her babies.S3: He got interested in two theories explaining how cholera killed people.S4: John Snow had shown that cholera was spread by germs and not in a cloud of gas.S5: John Snow

40、announced that polluted water carried the disease.S6: .T: Your sentences are so wonderful and amazing. I admire them very much. Who would like to retell the whole passage to us? If you can, Ill give you fifty marks.Ss: .Step 7 Topic discussionT: Now lets come to our topic. We know cholera was a 19th

41、 century disease. What disease do you think is similar to cholera today? Why? If you show quite a good opinion, Ill give you thirty marks. But first I will give you two minutes to discuss it with your partner.(The teacher should give them about two minutes to discuss, and join in the discussion at t

42、he same time. After that, the students will be asked to show their opinions to the whole class.)S: Since a lot of people die of bird flu, I think bird flu today is similar to cholera. Now the cause of bird flu is not quite clear, but scientists devote their lives to finding out the cause and the cur

43、e.S: In my opinion, SARS is quite similar to cholera. SARS is spread by germs in the air while cholera is spread by germs in the polluted water. A lot of people have been dying of SARS.Ss: .T: This time, the first/second group won the competition.Congratulations!T: Id like you to write a short passa

44、ge about John Snow according to the passage.The Design of the Writing on the BlackboardUnit 1Great scientistPeriod 2ReadingMain idea of each partScientific Report by John SnowThe problemThe causeIdea 1Idea 2The methodThe resultsIdea 1 or 2?Why?The conclusionResearch and ActivitiesUse your imaginatio

45、n to write a short passage about what may happen in the future. Imagine if you were to find out the causes of SARS, how would you do and what methods would you use to test your theory?You can imitate the structure of the reading passage, but you must make full use of your imagination to write what i

46、s different from the cause of cholera. Reference for TeachingWHO: Cholera in Chad Could Spread to Sudans DarfurThe government of Chad is calling for international assistance to fight a cholera outbreak in the country. The World Health Organization says it is concerned that the disease could spread t

47、o the Darfur region of western Sudan, which is already struggling with his own humanitarian crisis due to violence. The government of Chad says more than 2000 cases of cholera have been reported in the country, and it expects that number to more than double by the end of the rainy season in Septembe

48、r. Although, the majority of cases in Chad are being reported in the region surrounding the capital in the west. But the WHO says it is deeply worried that it could spread to neighboring Sudan and the refugee camps sprawled across its troubled western region of Darfur. An expert with the WHO, Claire-lis