北师大版 (2019)选择性必修 第三册Unit 9 Human BiologyLesson 2 Brain Power背景图ppt课件

这是一份北师大版 (2019)选择性必修 第三册Unit 9 Human BiologyLesson 2 Brain Power背景图ppt课件，共28页。PPT课件主要包含了brain，lungs，stomach，heart，liver，kidney，Lead-in，billion，organ，atom等内容，欢迎下载使用。

1.This rgan weighs abut a kil and is made up f tw sides. It is like a super cmputer that prcesses infrmatin.
Let’s guess what rgans they are.
2. This rgan beats at regular intervals 100,000 times a day. With each beat, it circulates 80 ml f bld thrugh the bdy! It pumps bld int the lungs, where it receives xygen, befre being pumped arund the rest f the bdy.
3. These rgans absrb xygen and get rid f carbn dixide. They are fund n either side f the heart. They receive air as a result f breathing and when bld passes thrugh, They give it xygen.
4. This rgan is like a bag which receives everything yu eat. It digests yur fd and sends vitamins and minerals int the bld.
What is the mst imprtant rgan amng the different parts f bdy?
It is the brain that determines hw yu stand ut and get ahead.
Activate and share
Hw much d yu knw abut the brain?
Different areas f the brain are respnsible fr different functins.
Nw let’s test ur brains.
Circle the dd ne ut.
Match the wrds frm the bx with their definitins.
atm nerve billin cell rgan
( ) 1. ne thusand millin( ) 2. a part f the bdy that has a particular purpse, e.g. the heart( ) 3. the smallest piece f smething that can exist alne( ) 4. a tiny part f the bdy that helps carry messages t and frm the brain( ) 5. a unit f living matter
Befre listening t a lecture abut the brain, read the statements and write T (true) r F (false).
( ) 1. The brain cnsists f nly white matter.( ) 2. The brain weighs just ver a kil.( ) 3. The brain cntains abut ne billin cells.( ) 4. The brain uses 10% f the bdy’s energy.( ) 5. The brain sends messages in the same way as a cmputer wrks.( ) 6. There are mre pssible cnnectins in yur brain than there are atms in the universe.
Listen t the lecture and check yur answers t Activity and crrect the false nes.
1. The brain cnsists f nly white matter.2. The brain weighs just ver a kil.3. The brain cntains abut ne billin cells.4. The brain uses 10% f the bdy’s energy.5. The brain sends messages in the same way as a cmputer wrks.6. There are mre pssible cnnectins in yur brain than there are atms in the universe.
grey and white matter.
ver ne hundred billin cells.
Listen again. Cmplete the infrmatin yu hear abut the brain. Then tell yur partner what yu have learnt abut the brain.
just ver a kil
ver ne hundred billin cells
nerve cells
electrical impulses
respnsible fr different functins
are related t
bdy and feelings
first language
a freign language that yu learn when yu are lder
Cmplete the summary with the wrds frm the lecture.
The brain cnsists f 1. _____________________ matter. It weighs 2. _____________________. It uses 3. _____________________ f the bdy’s energy. It cntains ver 4. _____________________ which make up nerve cells. These nerve cells are cnnected by electrical impulses. There are mre pssible cnnectins in ne brain than there are 5. _____________________.
grey and white
just ver a kil
ne hundred billin cells
atms in the universe
Scientists have mapped different areas f the brain that are respnsible fr 6. ________________. There are als different areas fr different types f thinking, such as learning yur wn language and learning a 7. ________________ language.
different functins
Yu will listen t a call-in radi prgramme with five persns. One persn is the presenter, and ne persn is a guest prfessr. The ther three peple will ask the prfessr questins. Listen t the prgramme and cmplete the table.
Memry isn’t as gd as it used t be, s d brain exercises really wrk?
challenge their brain with learning new things they are nt gd at
Exams is cming up, s he wnders if there are certain fds that are gd fr the brain.
Is there any particular kind f exercise that can imprve the health f her brain?
increase the intake
d exercise that is gd fr the heart, such as walking and running
Eat healthy fds. They cntain vitamins and minerals that are imprtant fr the nervus system.Get a lt f playtime (exercise).Wear a helmet when yu ride yur bike r play ther sprts that require head prtectin.Dn't drink alchl, take drugs, r use tbacc.Use yur brain by ding challenging activities, such as puzzles, reading, playing music, making art, r anything else that gives the brain a wrkut!
S what can we d fr the brain?
Asking fr advice1 _________________ try them?2 _________________, Prfessr Kim?3 S what kind f activities _________________?4 Is there any particular kind f exercise…? _________________?Giving Advice1 _________________________ try learning a new language…2 _________________________ is t cut dwn n junk fd.3 _________________________ increase yur intake f …4 _________________________ d exercise that is gd fr yur heart.
Listen and imitate. Cmplete the Talk Builder.
What’s yur advice
One thing yu can d
It might als be a gd idea t
What shuld I d
I advise yu t
d yu suggest
Talk Builder
Asking fr and Giving Advice
ASKING FOR AND GIVING ADVICE
1. What matter des it cnsist f ?
句意：它是由什么物质组成的？
cnsist f 由……组成；由……构成例句：The cmmittee cnsists f ten members.这个委员会由十个成员组成。cnsist in 在于；存在于例句：His wrk as a cnsultant cnsisted in advising freign cmpanies n the siting f new factry.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 Pints
2. These make up nerve cells, which are cnnected by electrical impulses.
句意：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；构成例句：Wmen make up 56% f 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：It’s unkind t make up stries abut thers.编造别人的故事是不友善的。
3. If yur brain has the crrect fuel, it can wrk 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 ne’s best 处在最佳状态例句：The mst rewarding result f ding wrk is that I get t knw when and where t 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 blssms are at their best nw.桃花开得正盛。