Inventions make the world better，smarter and a little more fun.

The folding bike helmet(頭盔)

People hate to wear a helmet because it's thick and heavy. Morpher is a bike helmet made from plastics. It is just as strong as the traditional ones, but flexible(靈活的) enough to fold almost totally flat. Also it is much easier to carry.

Shoes that tie themselves

After we see the movie Back to the Future, almost everyone wants a pair of self－tying shoes. Now, thanks to Nike, the shoe dream comes true. When you press a button, the shoes can tie themselves.

The smart alarm clock—Hello Sense

An alarm clock, called Hello Sense, can improve your sleep. It can control the temperature, light and even air quality in your bedroom to help you have a perfect sleep environment. And it can record your sleep cycles.

Sweet potatoes that could save lives

The lack(缺乏) of vitamin A can cause blindness and many other illnesses for illnesses. In sub－Saharan Africa, plant experts are helping them grow a kind of new sweet potatoes. These potatoes can help them fight against some illnesses.

1.The folding bike helmet is ________.

A. thick and heavy

B. made from metal

C. not as strong as a traditional one

D. flexible enough to fold almost flat

2.Which company makes self－tying shoes?

A. Adidas. B. Kappa.

C. Nike. D. Li－Ning.

3.The smart alarm clock can NOT ________.

A. improve our sleep

B. control our weight

C. record our sleep cycles

D. control the temperature in the bedroom

4.If a child has a poor eyesight，he may be in the lack of ________.

A. vitamin A B. vitamin B

C. vitamin C D. vitamin D

5.You can find the passage in a ________.

A. newspaper B. story book

C. guide book D. cookery book

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