What do earmuffs，swim fins and Popsicles have in common？They were invented by curious，creative kids-some as young as you.
   "Kids are creative thinkers with their own ideas for solving problems.Going through the invention process-identifying a challenge，designing a solution and testing to see if it works-is empowering，" said Tim Pula，an invention and innovation specialist at the Smithsonian Institution， " For kids who are comfortable with problem-solving and risk-taking，the future is a world of possibilities，" Pula added.
   The future looks bright for the Leschinsky siblings of Mahwah，New Jersey，Mark Leschinsky invented a self-disinfeeting hazmat （protective） suit for health care workers when he was 9 years old It earned him a place in the National Gallery for America's Young Inventors in 2015.The next year he was joined by his brother，Gary，who invented an allergy-alert watch when he was 8，Doth products have received U.S.patents，protecting the boys' rights as inventors.Because they were too young to file the applications，their dad did it for them. "I want to make a difference by helping people，" said Mark，now 15. "If there's a problem that can be solved，I want to be involved."
   Gary，now 14，has a personal tie to his invention. "Like millions of kids，I struggle with food allergies on a daily basis，" he said. "Children with allergies often are unaware that a reaction has started，" Gary said.So he created a watch-like device with sensors that measure itching（刺癢），sweating，heart rate and other body responses.A severe attack can quickly become life-threatening.Gary's watch has a built-in alert for a parent or guardian.
   Watching her brothers has inspired 12-year-old Barbara Leschinsky.An inventor since age 7，she created a toothbrush that gives a reward when used properly.Now she's working with Gary and Mark on a face shield that cleans itself with germ-freo air. "It's cool that you can make something that makes others，lives easier，" said Barbara，who hopes more girls and women get involved in innovation.

（1）What is the main idea of the article？

C

C

A．Kids are the best inventors.
B．Kids' future is a world of possibilities.
C．Some inventors were very young when they made a difference.
D．Inventive New Jersey siblings prove that good ideas can come at any age.
（2）Why was Gary Leschinsky interested in creating an allergy-alert device？

A

A

A．He had personal experience struggling with his own food allergies every day.
B．He wanted to help other kids determine which types of food they can eat.
C．He thought it could teach kids with food allergies how to treat themselves.
D．He believed it could reduce food allergies.
（3）Why did Barbara Leschinsky decide to become an inventor？

B

B

A．Because she learned about the inventions her brothers made when they were young boys.
B．Because she was inspired by watching her older brothers come up with new inventions.
C．Because she thought she could invent a hazmat suit to protect health care workers.
D．Because she wanted to join the Smithsonian Institution as a young inventor.