Nearly 10,000 young people from China, Bulgaria, Georgia, South Korea and South Africa came to Zhengzhou, Henan province, last weekend. They joined the finals of the Invention Convention China (ICC), a big competition for young inventors. More than 70,000 students took part in the event this year.

Their works were about a greener life, future travel, smart machines and protecting wildlife. Some works try to make life easier for old people. A three-judge panel will review each work from different ways, and the results will come out next week.

Among the competitors was Liu Kaiyuan, an 11-year-old boy from Shanghai. He made a “light-chasing simulator” for space stations. It shows how light moves inside a real space station. “Making it taught me how light works and how careful engineers must be,” Liu said.

Chen Ailin watched her two children present their works. The children designed a smart cup that keeps drinking water safe and an alarm that tells people the water temperature. Chen said the ideas came from their visits to a nursing home.

Officials said the event gives young people a stage to follow their scientific dreams. A judge said children’s minds are less limited than adults’, so science has no age limits. Another official said science has no borders. Children from different countries can share ideas and make friends through the event.

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1.1. Where did the ICC finals take place?

A In Shanghai.

B In Zhengzhou.

C In Beijing.

D In Nanjing.

解析：选B。B 细节理解题。根据第一段“They joined the finals of the Invention Convention China (ICC)”及其上文“came to Zhengzhou, Henan province”可知，决赛在郑州举行。故选B。

2.2. The underlined word “simulator” in Paragraph 3 means ______.

A a special light for space stations

B a big room for training

C a toy for children

D a machine that acts like real things

解析：选D。D 词义猜测题。根据第三段“He made a ‘light-chasing simulator’ for space stations. It shows how light moves inside a real space station”可知，simulator是展示光在真实空间站中如何运动的装置，即“模仿真实事物的机器”。故选D。

3.3. Why did Chen Ailin’s children make the smart cup and the alarm?

A To help people in need.

B To follow their scientific dreams.

C To win the competition.

D To show their love for science.

解析：选A。A 推理判断题。根据第四段“Chen said the ideas came from their visits to a nursing home”可知，孩子们是在参观养老院后产生这些创意的，可推断他们想帮助有需要的人。故选A。

4.4. What did the judge think of children’s minds?

A They are weaker than adults’.

B They are limited by age.

C They are freer than adults’.

D They are less useful than adults’.

解析：选C。C 观点态度题。根据第五段“children’s minds are less limited than adults’”可知，评委认为孩子的思维比成人更少受到束缚、更自由。故选C。

5.5. What is the best title for the passage?

A A Great Week in Shanghai.

B No Limits for Young Minds.

C How to Make Smart Machines.

D The History of Nursing Homes.

解析：选B。B 主旨大意题。全文围绕青少年发明大会展开，结尾以评委和官员的话点题：孩子的思维没有界限，科学没有年龄和国界的限制，故“No Limits for Young Minds”最能概括主旨。A/C/D均为单段细节，以偏概全。故选B。