chapter

11

You Can Produce Electricity!

CD2

In 1988, a plane called Daedalus flew 115 kilometers between the16

Greek islands of Crete and Santorini.

Santorinifor the plane came from the pilot; he used his legs like someone
modern machines, people built huge structures like the Great Wall of

In a small village in Malawi, Africa, children shout excitedly

島（asplace for all the village children. As they spin around and around, a 10
their movement to bring water up from under theThey may be many kilometers away from rivers, and river water is notalways clean.

19police officer 警察官

医療機器

In the future, people like policelost（場

as they hurried to work.

merry-go-round playpump（写真型The squares were made of）行

square 四角形

special 30

materials that make electricity when they change shape.

参文脈
失In December 2008, most people walking across Hachiko Square,Tokyo, probably did not notice four yellow squares on the ground

Malawi（広場）

Whenpeople stepped on the squares, the shape of the materials changed
and they produced electricity. The squares were only there for twenty

problem
厄介問題，困難days, but in事that time they produced enough power to make a TV

work for 1,400 hours! Imagine putting these squares under all the roads 35
in Tokyo. One day, we may turn our streets into power stations!

Getting clean water from under the ground can be 15

difficult, because pumps with engines are expensive to use and theythat we make when we move.

lost energy and keep it in batteries. They could use the power forground.
In Africa, getting clean water is a problem for many people.

medical device

computers, radios, or other devices.

長城照）

already have watches and small medical devices which can use energy
officers and soldiers may wear devices on their legs to “catch” this 25島）

be back 戻

they play on a merry-go-round play pump. It is the favorite meetingpump uses

this energy. And this energy can be used for other purposes. We

the Great Wall of
China
万里

China using the power of their bodies. Today, that power is back.
17

地中海

5

When you run, you have a lot of energy which comes from the 20
movement of your body. When you suddenly stop, your body loses（元々神話 登場人 名前。技能 発明）
Crete島today’s planes, but this plane did not have any engines. The power
In a time before

18

Daedalus

It is a very short flight forriding a bicycle to make the plane go forward.

16 〜 2120

味使。

power station
発電所

Moving people can produce a lot of energy, but what about

energy = electricity

often break. These merry-go-round “play pumps” mean that villages

people who cannot move around ̶ sick people or people sitting on

and schools can have clean and safe drinking water ̶ and thetrains? Even when we are resting, our bodies produce enough energy

children can have fun too!

to power two laptops! Most of this energy is heat. Now people are 40

rest 休憩脈「動」 意味）

power（他）〜

developing medical devices which get their power by changing bodyheat into electricity.

power = electricity
energy同 意laptop（文動Soon doctors will use them to do things likegetting information about their patients’ blood, for example.

Thiswill be useful in places like Africa, where many villages do not haveelectricity.
2145

We can use body ① heat in other ways too. Every day, 250,000
people use Stockholm’s Central Station.

They eat and drink, carryheavy bags, and run to catch trains ̶ and a lot of ② heat is produced
as they do these things. Inside the station, ③ heat pumps take ④ heat

heat pump 熱from the air and use it to ⑤ heat water for a building close to the 50station. It is a great way to get free energy ̶ all you need is a lot ofpeople!
26(563 words)

27