1、Unit 9 Human BiologyLesson 2 Brain PowerPeriod 2RevisionRecall what you have learned in the class and write a short passage about how to increase brain power.Homework CheckMost people are aware of the need to keep their bodies healthy but what about their minds?Your brain is an 1 organ/order of the
2、body,just like your heart,so it needs to be exercised!I retired last year and I found that after 2 nearly/merely a few months,I was getting forgetful and often couldnt 3 locate/violate items such as my keys.I realised that I needed to make some changes to my lifestyle.Now I do 4 crossroads/crossword
3、s in the newspaper and other word 5 puzzles/puddles I find online.It helps keep me alert and my mind feels clear.I also realised that my diet was really poor and full of 6 junk/joint food.Now Ive increased my 7 uptake/intake of fruit and vegetables.They 8 contain/complain lots of vitamins and minera
4、l that are so good for my brain.Finally,and probably the most difficult for me was joining some new clubs.Its important at my age to get out of my 9 comfort/conflate zone.Making new friends and learning new skills keep the brain active.I joined a chess club in my local area and I enjoy it so much.Ap
5、plying and PracticingChoose the correct options to complete the paragraph.Kevin:What tips 1 _ so I can get fitter?Li Qi:Well,how much exercise do you do in a typical week?Kevin:I dont do any exercise at the moment.Li Qi:You 2 _ start doing some exercise then,otherwise youll never get fit.3 _ what yo
6、u like doing in your free time.tell meshould definitelyIll getwould you give meits important to could tryApplying and PracticingComplete the dialogue with the expressions below.would you give meshould definitelyTell meKevin:I like cycling.I used to cycle a lot when I was younger.Li Qi:All right.You
7、4 _ cycling to school instead of taking the bus,for example.5 _ do a little bit of exercise every day.Kevin:Yes,OK.6 _ my old bike out of the garage and try it tomorrow.tell meshould definitelyIll getwould you give meits important to could tryApplying and Practicingcould tryIts important toIll getAp
8、plying and Practicing()1 Not everyone can run marathon.You need to have a certain type of body and mind.()2 Start training a maximum of six months before a marathon otherwise you will be too exhausted.()3 Gradually build up the number of miles you run so you can improve your endurance without injury
9、.()4 Increasing the speed of your runs quickly teaches your body to burn fat as fuel.()5 Run at speeds that are a lot slower than you plan to run the race.()6 Participating in shorter races to build up to the marathon is a good idea.()7 Painkillers such as ibuprofen are not recommended for runners a
10、s they can increase the risk of lung and heart problems if used too much.FListen to two excerpts from a lecture about marathon training.Write T(true),F(false)or NI(no information).FTFTTNIApplying and PracticingChen Yis Marathon Training ProgrammeRace date:1 OctoberStart Training(1 _ before):1 2 _Jan
11、uary 10 miles per weekFebruary onwards 3 _Short runs:4 _ per weekListen again.Complete Chen Yis marathon training programme.10 monthsJanuary20 or 30 miles per week3 to 5 runsApplying and PracticingChen Yis Marathon Training ProgrammeLong run:Every 5 _Distance 6 _March enter some shorter races to bui
12、ld up 7 _Suggestion from Amy(who I met at the race last week)Try 8 _ to improve 9 _.To do:Buy a water belt to 10 _ and 11 _ _.7 to 10 days12-15 milesconfidencespeed workaerobic capacityhelp keep hydratedkeeprunning for longerApplying and Practicing1 The brain is the most important _ in the human bod
13、y.2 It _ over one hundred million _ cells.3 The nerve cells in our brain are connected by _.4 There are more possible connections in one brain than there are _ in the universe.5 Different parts of our brain are _ different parts of our body.6 There are different areas in the brain that _ different f
14、unctions.7 Scientists have _ different areas of the brain.containnerveelectrical impulseresponsible fororganatomlocaterelated toComplete the sentences using the correct form of the words and phrases below.organcontainsnerveelectrical impulsesatomsrelated toare responsible forlocatedApplying and Prac
15、ticing()How can I increase my brain power?Whats your advice?()Thats a good idea.Should I change my diet?()I advise you to do exercise that is good for your heart.()What should I eat then?()Is there any particular kind of exercise I could do to help?What do you suggest?()You could try eating fish,nut
16、s and seeds to increase your intake of Omega-3.()One thing you could do is to cut down on junk food.()OK,I was also wondering what else I could do.()It might be a good idea to increase your intake of Omega-3.()You could try learning a new language to keep the brain flexible.Order the following dialo
17、gue.13857649210NotesRead the following sentences and learn the expressions.These make up nerve cells,which are connected by electrical impulses.这些(脑细胞)构成了神经细胞，神经细胞由电脉冲连接起来。make up 形成；构成 e.g.Women make up 56%of the student numbers.Notes If your brain has the correct fuel,it can work at its best.如果你的大
18、脑能获得正确的养料，它就能保持最佳工作状态。at ones best 处在最佳状态 e.g.The peach blossoms are at their best now.Notes One thing you can do is to cut down on junk food.你能做的一件事就是少吃垃圾食品。cut down(on sth.)削减，缩减（尺寸、数量或数目）e.g.The doctor told him to cut down on his drinking.AssignmentSearch online in groups for information about epidemics and share with the class.Goodbye!
