Two Swedish design students have invented a totally new kind of bicycle helmet. People are saying it's invisible because you cannot see it on a cyclist's head. The "invisible" helmet is really a kind of airbag. It is inside a large collar. People wear it around their neck like a scarf. When the cyclist falls off his/her bike, the collar quickly fills with gas and an airbag surrounds the head. The two students, Anna Haupt and Terese Alstin, wanted to change the way people cycle. They said: "Bicycle helmets have always been the same. They're so bulky, like a hard mushroom on your head." They called their new invention the Huvding. The pair said it looks so fashionable that "people would be happy to wear it".
The inventors started research and development on the Huvding in 2005. They examined thousands of cycling accidents. They wanted to find out how to make the safest helmet. They then teamed up with a Swedish airbag company called Alva. Today, the Huvding company has a staff of 17 employees. They hope their helmet will change how people all over the world cycle. In their video, Haupt and Alstin said: "Cars are so yesterday. Bikes are the future." They also said their invention would make them millionaires. People can only buy the Huvding helmet online in Europe. It sells for around $530. The company did not say when it would be available in the rest of the world.
1.fill with 装满
例句：When we inhale, our lungs fill with air, which press the diaphragm downward.
2.be happy to 乐于
例句：We shall be happy to put you up.
3.team up with 与…合作
例句："If we got state and federal support, " she says, "we would team up with others in a heartbeat and grow an industry.
4.research and development 研究和发展
例句：She will use the two-year fellowship to carry out her work at the Institute for Research and Development in Dakar, Senegal.
1.Where are the two designers from?
2.What is inside the collar?
a) an airbag
b) a spare tyre
d) space for a mobile phone
3.On which part of the body do people wear the helmet?
a) down the back
b) on the lap
c) on top of the head
d) around the neck
4.What does the airbag get filled with?
5.What did the women say normal helmets look like?
a) a mess
b) a miracle
c) a mushroom
d) a mudguard
6.When did the women start R&D on their helmet?
7.How many cycling accidents did the women look at?
a) tens of thousands
c) hundreds and hundreds
8.How many people work for the helmet company?
9.What did the women say about cars?
a) they are "so yesterday"
b) they are dangerous
c) drivers need helmets
d) they are nicer than bicycles
10.When will the helmet be on sale outside Europe?
b) when the international website is ready
c) next week
d) no one knows