题目内容：

    When it comes to U.S. middle school science and engineering, girls rule. Girls took the top five prizes at the 2019 Broadcom MASTERS, a competition for middle school students across the country.

The winners were announced last month. The winners were honored for their STEM successes, as well as for showing skills in critical thinking, communication, creativity and team-work. In first place was 14-year-old Alaina Gassler of West Grove, Pennsylvania. She designed a system to make driving safer by reducing blind spots — the areas that drivers cannot see outside their vehicle. Gassler developed the technology while in eighth grade. “She, along with the entire Class of 2019, are already leaders in their fields of science, technology, engineering and mathematics (STEM),” said Paula Golden, president of the Broadcom Foundation. “These young creators give every one of us hope for the future.”

The Broadcom MASTERS competition is a project of the Society for Science & the Public. It was set up to motivate young people to attend college and pursue careers in STEM fields. It was open to students in grades 6, 7 and 8 across the country.

The top prize winner, Alaina Gassler, says she got the idea for her project after seeing her mother struggle with blind spots in her family’s car. Blind spots lead to many accidents — about 840,000 accidents a year nationwide.

Gassler’s system helps drivers see “through” the A-frame pillar (A柱) — the part of the vehicle, in the front, that joins the top and front window. The A-frame pillar is important for safety, and cannot be removed. Gassler used a camera to help drivers look “through” the structure to see what is blocked. The camera sends video to a device that shows images on the other side of the pillar. The driver then can “see” what’s in the blind spot.

The young inventor won a $25,000 prize for her invention. She told Popular Mechanics she can make improvements on her device with that money. Gassler said she wants to improve the picture — making it easy to see in any weather, or any time of the day. She also told the magazine she hopes to sell her idea.

1.What does the writer try to convey by saying “girls rule” in Paragraph1?

A.Girls tend to break rules.

B.Girls prefer to control others.

C.Girls perform better in the competition.

D.Girls are superior to boys in all aspects.

2.Which best describes Paula Golden’s attitude toward these young creators?

A.Proud. B.Indifferent.

C.Critical. D.Cautious.

3.The purpose of the Broadcom MASTERS competition is to_____________.

A.offer students hands-on training

B.collect money for scientific research

C.arouse students’ interest in STEM fields

D.persuade students not to drop out of school

4.What drives Alaina Gassler to invent the system?

A.Her strong curiosity.

B.Her school’s task.

C.The breakdown of her family car.

D.Her mother’s experience.

5.What can we infer about Gassler’s system?

A.It gets rid of blind spots.

B.It is still far from perfect.

C.It has been put into market.

D.It can avoid accidents automatically.