1、新北师大版高中英语选择性必修三Unit 9 Human BiologyLesson2 Brain PowerbrainlungsstomachheartliverkidneyLead-in1.This organ weighs about a kilo and is made up of two sides.It is like a super computer that processes information.brainLets guess what organs they are.Lead-in2.This organ beats at regular intervals 100,00
2、0 times a day.With each beat,it circulates 80 ml of blood through the body!It pumps blood into the lungs,where it receives oxygen,before being pumped around the rest of the body.heartLead-in3.These organs absorb oxygen and get rid of carbon dioxide.They are found on either side of the heart.They rec
3、eive air as a result of breathing and when blood passes through,They give it oxygen.lungsLead-in4.This organ is like a bag which receives everything you eat.It digests your food and sends vitamins and minerals into the blood.stomachLead-inWhat is the most important organ among the different parts of
4、 body?It is the brain that determines how you stand out and get ahead.Lead-inActivate and shareHow much do you know about the brain?Different areas of the brain are responsible for different functions.额叶顶叶颞叶枕叶小脑协调Now lets test our brains.Circle the odd one out.Circle the odd one out.Match the words
5、from the box with their definitions.atom nerve billion cell organ()1.one thousand million()2.a part of the body that has a particular purpose,e.g.the heart()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
6、living matterbillionorganatomnervecellBefore listening to a lecture about the brain,read the statements and write T(true)or F(false).()1.The brain consists of only white matter.()2.The brain weighs just over a kilo.()3.The brain contains about one billion cells.()4.The brain uses 10%of the bodys ene
7、rgy.()5.The brain sends messages in the same way as a computer works.()6.There are more possible connections in your brain than there are atoms in the universe.Listen to the lecture and check your answers to Activity and correct the false ones.1.The brain consists of only white matter.2.The brain we
8、ighs just over a kilo.3.The brain contains about one billion cells.4.The brain uses 10%of the bodys energy.5.The brain sends messages in the same way as a computer works.6.There are more possible connections in your brain than there are atoms in the universe.grey and white matter.over one hundred bi
9、llion cells.20%Listen again.Complete the information you hear about the brain.Then tell your partner what you have learnt about the brain.What matter does it consist of?Grey and white matterHow much does it weigh?How much bodys energy does it use?How many cells does it contain?just over a kilo20%ove
10、r one hundred billion cellsHow are messages sent?The brain cells make up _,which are connected by _.The brain sends messages using _.nerve cellselectrical impulseselectrical impulsesWhat have we learnt about the brain in the last ten years?There are different areas in the brain,which are _.We now kn
11、ow which parts of the brain _ different parts of our _ from them.The brain also has different areas for different kinds of _.You have one area for your _ and another area for _.responsible for different functionsare related tobody and feelingsthinkingfirst languagea foreign language that you learn w
12、hen you are olderComplete the summary with the words from the lecture.The brain consists of 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 are more possible connections in one brain
13、than there are 5._.grey and whitejust over a kilo20%one hundred billion cellsatoms in the universeScientists have mapped different areas of the brain that are responsible for 6._.There are also different areas for different types of thinking,such as learning your own language and learning a 7._ lang
14、uage.different functionsforeignYou will listen to a call-in radio programme with five persons.One person is the presenter,and one person is a guest professor.The other three people will ask the professor questions.Listen to the programme and complete the table.What problem do they have?What can they
15、 do?Anna:_ Memory isnt as good as it used to be,so do brain exercises really work?challenge their brain with learning new things they are not good atWhat problem do they have?What can they do?John:_ on junk food,_ of Omega-3fatsBella:_ Exams is coming up,so he wonders if there are certain foods that
16、 are good for the brain.Is there any particular kind of exercise that can improve the health of her brain?cut down increase the intakedo exercise that is good for the heart,such as walking and runningEat healthy foods.They contain vitamins and minerals that are important for the nervous system.Get a
17、 lot of playtime(exercise).Wear a helmet when you ride your bike or play other sports that require head protection.Dont drink alcohol,take drugs,or use tobacco.Use your brain by doing challenging activities,such as puzzles,reading,playing music,making art,or anything else that gives the brain a work
18、out!So what can we do for the brain?Asking for advice1 _ try them?2 _,Professor Kim?3 So what kind of activities _?4 Is there any particular kind of exercise?_?Giving Advice1 _ try learning a new language2 _ is to cut down on junk food.3 _ increase your intake of 4 _ do exercise that is good for you
19、r heart.Listen and imitate.Complete the Talk Builder.Should IWhats your adviceYou couldOne thing you can doIt might also be a good idea toWhat should I doI advise you todo you suggestTalk BuilderAsking for and Giving AdviceAsking for adviceGiving adviceCould I ask for your/some advice on/about.?What
20、 do you think I should do?What would you do in this situation?Can you give me some advice?Should I?I think you should.Why dont you.?What/How about.?Have you tried/considered.?If I were you,I would.Youd better.I advise you toWhat do you advise me to do?If you were me what would you do?I would appreci
21、ate your advice on/about.Could I ask what your reaction would be.?Whats your advice?What should I do?You ought(not)to.I(dont)think you should/ought to.It might(not)be a good/bad idea to.One thing you could/should/have to do is.1.What matter does it consist of?句意：它是由什么物质组成的？consist of 由组成；由构成例句：The c
22、ommittee consists of ten members.这个委员会由十个成员组成。consist in 在于；存在于例句：His work as a consultant consisted in advising foreign companies on the siting of new factory.身为一名顾问，他的工作是为外国公司在新厂选址问题上提供建议。Language Points2.These make up nerve cells,which are connected by electrical impulses.句意：这些（脑细胞）构成了神经细胞，神经细胞由电
23、脉冲连接起来。make up 形成；构成例句：Women make up 56%of the student numbers.女生占学生人数的56%。make up 编造；虚构（故事、借口等）例句：Its unkind to make up stories about others.编造别人的故事是不友善的。3.If your brain has the correct fuel,it can work at its best.句意：如果你的大脑获得正确的养料，它就能保持最佳工作状态。at ones best 处在最佳状态例句：The most rewarding result of doin
24、g work is that I get to know when and where to be at my best.在工作的过程中，我最大的收获就是懂得了应该在何时何地保持最佳状态。The peach blossoms are at their best now.桃花开得正盛。4.One thing you can do is to cut down on junk food.句意：你能做的一件事就是少吃垃圾食品。cut down(on sth)消减，缩小（尺寸、数量或数目）例句：The doctor told him to cut down on his drinking.医生劝他少喝酒。cut down 砍倒（树木）例句：That man cut down a tree with a chainsaw.那个男人用链锯砍倒了一棵树。
