题目内容：

    Ping-Pong Door

Do you want a ping-pong table in your room? But you may not have enough space. Now this door is here to help you. It can turn into a ping-pong table when you pull it down. After the ping-pong game is over, it goes back to being a common door. It was designed by Tobias Fränzel from Germany. Cool idea!

Dog Watch

The dog watch is actually a “clock for keeping time at a rate(比率) other than human time” and was invented in 1991. With this handy(便利的) watch, you can know time at your animal's rate instead of your own. According to the inventor, the watch multiplies(乘) every human second, minute and hour by seven, giving us “doggy time”. If a dog lives to be the age of 14, that translates into 98 human years!

Earthquake House

Big earthquakes can hit a house, possibly making the people in it get hurt. But our inventor has found a way, the Earthquake House!

His idea is simple. Build a round house that has earthquake sensors(传感器) in it. If the sensors know the big earthquake, the house will be free from its chains(链条). Don't worry. You always remain upright in it. We don't recommend this for a hillside home because there aren't any brakes to stop it!

Smell This

How do you know if your breath smells nice, or if it smells bad? It's difficult to know because it's very hard to smell the air that comes out of your own mouth. Smell This is useful for this situation. You just place the mask on your face, then breathe out through your mouth and breathe in through your nose.

1.If a dog lives to 5 years old, that translates to ________ human years.

A.25 B.30 C.35 D.40

2.In Paragraph 4, the underlined word “brake” means “________”．

A.something for repairing B.something for slowing or stopping

C.something for eating D.something for breathing

3.You can find such a passage in the materials EXCEPT ________.

A.newspapers B.magazines C.science books D.storybooks