Hold your hands together and you feel the heat from them.Did you know that this heat could be a kind of energy？
Ann Makosinski，a girl from British Columbia，Canada，made a flashlight（手電筒） that only uses the heat from your hands as power.The invention won top prize in last year's Google Science Fair's 15～16 age group.Makosinski was just 15 then.
Makosinski has been interested in human energy since Grade 6.
She said as humans，we produce heat every minute.She wanted to make use of that to light up the flashlight.
She found a kind of tiles（瓷片）.These tiles produce electricity when one side is heated and the other side is cooled.
She made the flashlight empty and put the tiles both inside and outside of it.Holding the flashlight with your hands would make the tiles heat up on one side.At the same time，the air cools the tiles on the inside of the flashlight.
The electricity that was made by the tiles was enough for an LED light，but it did not make so much voltage（電壓）.Without voltage，flashlights will not light up.
To deal with the problem，Makosinski spent months finding information on the Internet and doing experiments at home.She said sometimes she thought it would never work，but she knew "You just have to keep going".
In the end，she made a circuit（電路）by herself and it worked!
Makosinski is working on getting a patent（專利）for her flashlight.
（1）Which of the following is TRUE about the flashlight？ DD
A．It was invented by a girl from Britain.
B．It only uses the heat from people's heads.
C．It won the second prize in Google Science Fair.
D．It had tiles both inside and outside of it.
（2）How old is Ann Makosinski now？ DD
A．13 .
B．14.
C．15.
D．16.
（3）What does the underlined word "that" refer to？ CC
A．A special type of tiles.
B．Electricity produced by tiles.
C．Heat produced by humans.
D．2020 Google Science Fair.
（4）How did Ann Makosinski deal with the problem of voltage？ CC
A．She put tiles inside and outside of the flashlight.
B．She held the flashlight with her both hands.
C．She worked hard to make a circuit on her own.
D．She worked on getting a patent for her flashlight.
（5）Which phrases can best describe Makosinski？ DD
A．Being gifted and pretty.
B．Helping scientists warmly.
C．Working at school carefully.
D．Sticking firmly to her interest.
【答案】D；D；C；C；D
【解答】
【點(diǎn)評(píng)】
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發(fā)布：2024/4/20 14:35:0組卷：29引用：1難度：0.7
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