1 . If you cannot live without your car, Zurich might be the last city you would like to visit. In Zurich, people are welcome, but cars are not! Over the past 20 years, this city has used smart ways to make traffic lighter.
One is to keep the same number of parking spaces. For example, if 50 new parking spaces are built in one part of the city, then 50 old spaces in other parts are taken away for other uses. So the total number doesn't change. Some are unhappy that there are never enough spaces. That is just what the city has in mind: If people find parking more difficult, they will drive less.
Also, the number of cars in the city is counted (数). Over 3,500 little computers are put under Zurich roads to check the number of cars that come into the city. If the number is higher than the city can deal with (处理), the traffic lights on the roads that enter the city will be kept red. So drivers who are traveling into Zurich have to stop and wait until there are fewer cars in the city.
Now, you may ask why Zurich is doing this. This is simply because the city wants to make more spaces for its people.
1. The writer tells us how to keep the same number of parking spaces by _______.| A．giving a reason | B．giving an example |
| C．sharing a story | D．drawing a picture |
1. Zurich only welcomes people with mini cars
2. Zurich is a small city with a long history
3. it's difficult to find a parking space in Zurich
4. you can't drive into Zurich at any time you want
| A．1, 3 | B．2, 3 | C．3, 4 | D．1, 4 |
| A．People will build more parking spaces under Zurich roads. |
| B．All the computers under Zurich roads will stop working. |
| C．Drivers will stop and wait before traveling into Zurich. |
| D．The lights on the roads in Zurich will be always kept red. |
A． | B． | C． | D． |
2 . It’s not easy to get your papers (论文) published in top science journal Nature. However, Cao Yuan, 24-year-old Chinese scientist, had two papers that he co-wrote published in Nature on May 6. People call him “a genius (天才) born after 1995.”
Cao is a doctoral student (博士生) studying at MIT, a top university in the US. In 2018, he topped Nature’s list of the top 10 people of that year. Cao’s papers are about grapheme (石墨烯)—the thinnest and strongest material in the world. Scientists first discovered it in 2004.
Cao has found “switch (开关)” inside this material. By turning this “switch” on, the material can be used as superconductor ) But when it’s turned off, the material can become an insulator (绝缘体). His finding has opened up whole new field of superconductor physics (超导体物理学). It could allow scientists to find cheaper and easier ways to use electricity.
Cao finished middle and high school in China in just two years. At 14, he enrolled (入学) in School of the Gifted Young (少年班) at the University of Science and Technology. This is a special program that turns gifted teenagers into world-class talents.
His greatest strength (优势) is probably his ability to learn independently, according to his high school physics teacher Huang Jiatang. As a teenager, Cao was unafraid to challenge teachers and ask difficult questions, Huang recalled.
He doesn’t worry about possible failures in his research, either. “He just rolled up his sleeves and continued working (卷起袖子努力干),” Cao’s professor Pablo Jarillo-Herrero of MIT said to Nature.
1. What has Cao Yuan found?| A．A new material called graphene. |
| B．How to turn superconductors into insulators. |
| C．A “switch” inside graphene. |
| D．A cheaper and easier way to use electricity. |
a. He studied at MIT.
b. He had two papers published in Nature.
c. He studied at the University of Science and Technology.
d. He has found “switch (开关)” inside this material.
| A．c-a-b-d | B．c-a-d-b | C．a-c-d-b | D．c-d-a-b |
| A．He enrolled in MIT, a top university in the US, at 14. |
| B．He was just like any other student in middle school. |
| C．He showed his talent for science in an early age. |
| D．He was not satisfied with what he learned at school. |
| A．He likes to challenge teachers. | B．He likes to take on challenges. |
| C．He solves difficulties easily. | D．He has failed many times. |
