Lesson2BrianPower.ppt

1、Lesson 2 Brain Power,Unit 21 Human Biology,A Quit,With what do we see?,With what do we hear?,With what do we smell?,With what do we talk and eat?,With what do we think?,We think with our brain.,motor area,spinal cord,balance area,visuosensory area,information processing area,auditory area,language a

2、rea,sensation area,behavioral and emotional area,discourse area,gustatory area,Duty report： Background: About the brain The brain is the major organ of the nervous system, responsible for thought, memory, language and emotion. It is protected by the skull（头盖骨，脑壳）, which encases（包住、围绕） it and the cer

3、ebrospinal fluid（脑髓液） which cushions（给安上垫子） it. Memory works in three ways: iconic memory (形象记忆)briefly remembers things seen for a split second(一瞬间), short-term memory stores things for about five minutes, long-term memory can store things for a lifetime.,The brain has to forget certain things in o

4、rder to make room for new memories. The brain sends and receives messages as impulses（脉冲） of electrical energy（电能）. The energy travels via（通过） nerve cells, called neurons（神经元）, which run down the spinal cord （脊椎）to the rest of the body.,Ex.1:Match the Key Words with the definitions (1-5).,atom, bill

5、ion, cell, nerve cell, organ,1. one thousand million 2. a part of the body that has a particular purpose, e.g. the heart, the liver 3. the smallest piece of something that can exist alone 4. a tiny part of the body that helps carry messages to and from the brain 5. a unit of living matter,billion,or

6、gan,cell,atom,nerve cell,Listening strategies: Before you listen, read the text and predict what kind of information you need, e.g.the first gap in Exercise 2 is probably a colour. Remember, you may need more than one word. Underline some important words in the text before each gap, e.g. consist of,

7、 weighs. While you are listening, listen for these important words-the information you need should follow them. You can complete the gaps using abbreviations(缩写词) at first-this saves time. Then write them in full.,1,Ex2:Listen to a science lesson. Use the Strategies to complete the gaps in this summ

8、ary.,The brain consists of grey and (1) _ matter. It weighs (2) _. It uses (3) _of the bodys energy. It contains over (4) _ which make up nerve cells. These nerve cells are connected by electrical impulses. There,white,just over a kilo,20,100 billion cells,brain than there are (5) _ _. Scientists ha

9、ve mapped different areas of the brain which are responsible for (6) _. The areas of the brain related to controlling (7) _ could be compared to miniature film studios.,different functions,sight and hearing,are more possible connections in one,Our eyes and ears send signals (8),picture of the outsid

10、e world. Scientists have also identified areas responsible for different emotions, such as (9) _, love and laughter. There are also different areas for different types of thinking, such as learning your own language and learning a (10) _ language.,fear,foreign,_, and it is our brain that interprets

11、these signals and builds up a,all the time,Ex4: Listen to a student phone-in programme about revising for exams and complete the table.,Listen and write down the professors advice. Brain: The brain _ grey and _ It only weighs _. How to get us through our exams: You must _. You must _. 3. You must _.

12、,is made up of,white matter,about a kilo,eat a healthy diet,get enough sleep,cater to the brain needs,Listen to the second part and write down the three callers advice. Caller 1 Dan:,1. plan the revision,2. make a list,3. do the most things first,Listen to the second part and write down the three ca

13、llers advice. Caller 2 Charlotte:,1. get some exercise,2. dont drink a lot of coffee,Listen to the second part and write down the three callers advice. Caller 3 Mike:,1. give yourself reward.,2. give yourself a break,Ex5: Please turn to P136 to read the tapescript and then find these useful expressi

14、ons to complete the Function File with these words .,must, ought to, should, shouldnt, advise, need to, if I were you, have got to, could, theres no point（做某事无用）, its important to, what tips, I find that,Giving and Asking for Advice,You (1) _ eat a healthy diet and get enough sleep. (2) _ have you g

15、ot for me and our listeners? I think (3) _ plan your revision. I think you (4) _ make a list of all the things youve got to study.,must,What tips,its important to,should,(5) _ you give us some advice? (6) _, Id get some exercise. You (7) _ get some fresh air. You (8) _ drink lots of coffee. You (9)

16、_ give yourself rewards. Id (10) _ you to treat yourself. You (11) _ give yourself a break. (12) _ after a certain amount of time I cant concentrate any more and (13) _ in that.,Could,If I were you,ought to,shouldnt,need to,advise,have got to,I find that,theres no point,高考链接：建议信A Letter of Suggestio

17、n 假定你叫李华，最近，你的好友林浩来信说他不知如何做好考前复习准备工作。请你用英语给他回一封信，提出一些建议，帮助他顺利通过考试。 提示： 1、注意饮食、运动与睡眠。 2、制定复习计划及落实 3、专心考试提高效率 Please give your friend advice orally . Strongly recommend: be supposed to,Dear Lin Hao， Im glad to receive your letter. From your letter, I know you have the problem of how to get you through

18、 exams. The following are my suggestions./ My suggestions are as follows. First, to keep your brain in perfect condition, you must eat a healthy diet and get enough sleep. You ought not to drink a lot of coffee before going to bed because it can keep you awake. It is important to ensure your brain t

19、o have enough oxygen so you should get some exercise. Second, to prepare well for exams, you are supposed to plan your revision by making a list of all the things youve got to study and if I were you, I would do the most important things first. Third, you need to concentrate on your exam papers whil

20、e taking exams, which will help you finish exams more efficiently. I hope my advice will be helpful lo you. May you pass and get good results in all the exams. I am looking forward to your good news. Yours, Li Hua,Dear Lin Hao， Im glad to receive your letter. From your letter, I know you have the pr

21、oblem of how to get you through exams. The following are my suggestions./ My suggestions are as follows. First, to keep your brain in perfect condition, you must eat a healthy diet and get enough sleep. You ought not to drink a lot of coffee before going to bed because it can keep you awake. It is important to ensure your brain to have enough ox