ACaliforniateenhasattractedtheattentionoftechgiantsGoogleforherpotentiallyrevolutionaryinventionwhichchargesaphonein20secondsflat.Thesuper-fastchargingdevicehasbeencalledasupercapacitor(超级电容器)by18-year

题目详情

A California teen has attracted the attention of tech giants Google for her potentially revolutionary invention which charges a phone in 20 seconds flat.

The super-fast charging device has been called a supercapacitor(超级电容器)by 18-year-old Esha Khare of Saratoga—as she took $ 50 000 from the Intel International Science and Engineering Fair which took place in Phoenix.

The device will make waiting hours for a phone to charge a thing of the past and the invention packs energy into a smaller space than traditional phone batteries and holds the charge for longer.

The supercapacitor is flexible and tiny and is able to handle 10 000 recharge eyeles more than normal batteries by a factor of 10. So far Khare has only used her supereapacitor to power an LED—but she sees a bright future that one day will see her invention powering cell phones cars and any device that requires a rechargeable battery.

Heading to Harvard Khare told CBS San Francisco that this is only the start and that she will be “ setting the world on fire” from here. “My cell phone battery always dies ” she told NBC News when asked what inspired her to work on the energy-storage technology. Specializing in nanochemistry(纳米化学) allowed Khare to reduce the size of her invention.

Esha Khare lonut Budisteanu and Henry Wangjune Lin got the top three prizes at this year’s Intcl Inernational Science and Engineening Fair in Phoenix. Khare explained her award-winning revolutionary invention. “ It is also flexible so it can be used in rollup(卷曲)displays and clothing and fabric ” she added. “ It has different applications and advantages over batteries in that sense.”

An 18-year-old girl has managed to figure out something that multi-national corporations have not. This has led to.

5. The reason that the device attracted the attention of Google is that it______.

A. can be bent B. can power cars

C. can charge a phone in 20 seconds D. can handle 1 000 recharge cycles

6. What inspired Esha Khare to invent the device?

A. The market demands B. Cash prize of $ 50 000

C. Heavy weight of her cell phone B. Frequent death of her cell phone battery

7. The underlined phrase “ setting the world on fire” in Paragraph 5 means_______

A. meeting with many difficulties B. making more breakthroughs

C. improving her invention D. troubling the world

8. What can we infer about the future of Esha Khare’s device?

A. It will have a brilliant future B. It will be donated to the world