北师大版高二 选修 7

Unit 21

Lesson 2

Brain Power

Lesson 2

Brain Power

Match the Key Words with the

definitions(1-5).

atom, billion, 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

organ

cell

atom

nerve cell

Complete the sentences with the followingwords .

atom , billion , cell , nerve cell ,organ , function , sight , hearing ,fear

Key words study

atom , billion , cell , nerve cell ,organ , function , sight , hearing , fear

1.He watched the boat until it is out of .

2.How many are there in the universe ?

3.The medicine is made to kill cancer .

4.The eye is the of sight .

5.The population of China reaches up to

1.3 .

sight

atoms

cells

organ

billion

atom , billion , cell , nerve cell ,organ , function , sight , hearing , fear

6.The of the heart is to pump

blood through the body .

7.A is a tiny part of the body that

helps carry messages to and from the brain .

8.He showed no in facing

the big difficulty .

function

nerve cell

fear

Listen to a science lesson. Use the Strategies to complete the gaps in this summary.

The brain consists of grey and (1) _____

matter. It weighs (2) ______________. It

uses (3) _____of the body’s 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 have 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.

atoms in theuniverse

different functions

sight and hearing

are more possible connections in one

Our eyes and ears send signals (8)

picture of the outside 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 these signals and builds up

all the time

1. How do you think the teacher feels

about his subject?

Listen to the lesson again and answer these questions. Listen to the lesson again and answer these questions.

Enthusiastic.

2. What example does he use to

explain the way the brain controls

different parts of the body?

A computer.

3. What does he compare to a film

studio?

The areas of the brain related to

controlling sight and hearing.

Listen to a student phone-in

program about revising for

exams and complete the table.

What advice do they give?

Caller Advice

Caller 2get some exercise , don’t

drink a lot of coffee

Caller 3give yourself rewards and a

break

Caller1

plan the revision, make a list of the things you’ve got to study and do the most important things first

Vocabulary: Phrasal Verbs

Match the words and expressions below with the verbs in the text.

appear, discover, look at…in detail (×2),

make a note of, mention, pass, postpone,

start, understand, learn…from

Last month, I had an important English

exam. I decided not to (1)________ put

off studying (as I normally do!) and got

up early every morning to (2) ________

postpone

start

get down to work straight away. I’m a

“morning person” and I (3) ___________

got a lot out of my revision sessions. I

always began by (4) ________________

going over a practice test I had done -

checking my answers and (5) __________

finding out what I’d got wrong. I also tried

to (6) __________ work out why I’d made

mistakes. If I didn’t understand something,

learned… from

looking at…in detail

discovering

understand

I’d (7) _____________ write it down and

then (8) _______ bring it up in class with

my teacher. She was very helpful and

she (9) _______________ went through

all of the things that would probably

(10) ______ come up in the exam. In the

end the exam wasn’t so bad after all and

I think I (11) ______ got through it.

Mind you, I still haven’t had my results

yet!

make a note of

appear

passed

looked at…in detail

mention