(共29张PPT)
Lesson 2 P56-57
新北师大选择性必修Book 3
Unit 9 HUMAN BIOLOGY
BRAIN POWER
brain
lungs
stomach
heart
liver
kidney
1.This organ weighs about a kilo and is made up of two sides. It is like a super computer that processes information.
brain
Let’s guess what organs they are.
2. This organ beats at regular intervals 100,000 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.
heart
3. These organs absorb oxygen and get rid of carbon dioxide. They are found on either side of the heart. They receive air as a result of breathing and when blood passes through, They give it oxygen.
lungs
4. This organ is like a bag which receives everything you eat. It digests your food and sends vitamins and minerals into the blood.
stomach
What is the most important organ among the different parts of body
It is the brain that determines how you stand out and get ahead.
Now let’s test our brains.
Circle the odd one out.
Circle the odd one out.
1
Pair Work. Match the words from the box with their definitions.
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 living matter
atom nerve billion cell organ
billion
organ
atom
nerve
cell
2
Before listening to a lecture about the brain, read the statements and write Tor F.
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 body’s 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.
F
T
F
F
T
T
3
Listen to the lecture and check your answers to Activity 2. Correct the false ones.
1. The brain consists of only white matter.
1. The brain consists of grey and white matter.
3. The brain contains about one billion cells.
3. The brain contains over one hundred billion cells.
4. The brain uses 10% of the body’s energy.
4. The brain uses 20% of the body’s energy.
4
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 matter
How much does it weigh
How much body’s energy does it use
How many cells does it contain
just over a kilo
20%
one hundred billion cells
How are messages sent The brain cells make up ____________, which are connected by ____________. The brain sends messages using __________________.
What have we learnt about the brain in the last ten years There are different areas in the brain, which are ________________________. We now know 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 _________________________________.
nerve cells
electrical impulses
electrical impulses
responsible for different functions
are related to
body and feelings
thinking
first language
a foreign language that you learn when you are older
Complete the summary with the words from the lecture.
5
The brain consists of _____________ matter. It weighs _______________. It uses __________ of the body’s energy. It contains over ____________________ which make up nerve cells. These nerve cells are connected by electrical impulses.
just over a kilo
grey and white
20%
one hundred billion cells
There are more possible connections in one brain than there are _________________. Scientists have mapped different areas of the brain that are responsible for _______________. There are also different areas for different types of thinking, such as learning your own language and learning a ________ language.
atoms in the universe
different functions
foreign
6
Listen to a student phone-in programme and complete the table.
What problem do they have What can they do
Anna:
Memory isn’t as good as it used to be, so do brain exercises really work
challenge their brain with learning new things they are not good at
John:
Bella:
What problem do they have What can they do
Exams are coming up, so he wonders if there are certain foods that are good for the brain.
cut down on junk food, increase the intake of Omega-3 fats
Is there any particular kind of exercise that can improve the health of her brain
do exercise that is good for the heart, such as walking and running
7
Listen and plete the Talk Builder.
Asking for and Giving Advice
Asking for Advice
1. _______________ try them
2. ___________________, Professor Kim
3. So what kinds of activites ________________
4. Is there any particular kind of exercise ...
__________________
Should I
What’s your advice
do you suggest
What should I do
Asking for and Giving Advice
Giving Advice
1. _____________ try learning a new language
2. ____________________ is to cut down on junk food.
3. __________________________ increase your intake of ...
4. ________________ do exercise that is good for your heart.
You could
One thing you can do
It might also be a good idea to
I advise you to
8
Search online in groups for more ways to increase brain power. Then give a short presentation to the class.
More ways to increase brain power:
Eat brain-boosting food.
Get enough sleep.
Get enough exercise.
Cut down on stress.
Learn something new.
Try to make a short presentation with the information.
新北师大选择性必修Book 3
Language points P56-57
Unit 9 HUMAN BIOLOGY
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 committee 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。
2. 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:
It’s 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 one’s best 处在最佳状态
例句:
The most rewarding result of doing 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。
Thank you!