1 . The Biggest Stadiums in the World
People have been pouring into stadiums since the days of ancient Greece. In around 80 A.D., the Romans built the Colosseum, which remains the world’s best known stadium and continues to inform contemporary design. Rome’s Colosseum was 157 feet tall and had 80 entrances, seating 50,000 people. However, that was small fry compared with the city’s Circus Maximus, which accommodated around 250,000 people.
These days, safety regulations-not to mention the modern sports fan’s desire for a good view and comfortable seat — tend to keep stadium capacities (容量) slightly lower. Even soccer fans tend to have a seat each; gone are the days of thousands standing to watch the match.
For the biggest stadiums in the world, we have used data supplied by the World Atlas list so far, which ranks them by their stated permanent capacity, as well as updated information from official stadium websites.
All these stadiums are still functional, still open and still hosting the biggest events in world sport.
·Rungrado 1st of May Stadium, Pyongyang D.P.R. Korea. Capacity: 150,000. Opened: May 1,1989.
·Michigan Stadium, Ann Arbor, Michigan, U. S. Capacity: 107,601. Opened: October 1, 1927.
·Beaver Stadium, State College, Pennsylvania, U. S. Capacity: 106,572. Opened: September 17, 1960.
·Ohio Stadium, Columbus, Ohio, U. S. Capacity: 104,944. Opened: October 7,1922.
·Kyle Field, College Station, Texas, U. S. Capacity: 102,512. Opened: September 24, 1927.
1. How many people could the Circus Maximus hold?| A．104,944. | B．107,601. | C．About 150,000. | D．About 250,000. |
| A．Michigan Stadium. | B．Beaver Stadium. | C．Ohio Stadium. | D．Kyle Field. |
| A．They host big games. | B．They have become tourist attractions. |
| C．They were built by Americans. | D．They are favored by architects. |
2 . When it comes to being fit and healthy, we're often reminded to aim to walk 10,000 steps per day. This can be a frustrating target to achieve, especially when we're busy with work and other commitments.
The 10,000 steps a day target seems to have come about from a trade name pedometer sold in 1965 by Yamasa Clock in Japan. The device was called "Manpo-kei", which translates to "10,000 steps meter". This was a marketing tool for the device and has seemed to have stuck across the world as the daily step target. It's even included in daily activity targets by popular smart-watches, such as Fitbit.
In ancient Rome, distances were actually measured by counting steps. In fact, the word "mile" originated from the Latin phrase mila passum, which means about 2,000 steps. It's suggested the average person walks about 100 steps per minute，which would mean it would take a little under 20 minutes for the average person to walk a mile. So in order for someone to reach the 10,000-step goal, they would need to walk about five miles a day, nearly two hours of activity.
Researchers have investigated the 10,000 steps a day target. The fact that some studies have shown this step target improves heart health, mental health, and even lowers diabetes (糖尿病) risk, may, to some extent, explain why we have stuck with this number.
But while some research has shown health benefits at 10,000 steps, recent research from Harvard Medical School has shown that, on average, nearly 4,400 steps a day is enough to significantly lower the risk of death in women. This was when compared to only walking around 2,700 steps daily. The more steps people walked, the lower their risk of dying was, before leveling off at around 7,500 steps a day. No additional benefits were seen with more steps. Although it's uncertain whether similar results would be seen in men, it's one example of how moving a little bit more daily can improve health and lower risk of death.
1. From which does taking 10,000 steps for walkers originally come?| A．Ancient Rome. | B．Fitbit. | C．Mila passum. | D．Manpo-kei. |
| A．2000. | B．2700. | C．4000. | D．7500. |
| A．Remaining steady. | B．Increasing greatly. |
| C．Decreasing sharply. | D．Disappearing suddenly |
| A．The more you walk daily, the healthier you will be. |
| B．7,500 steps or so a day is the ideal number for women. |
| C．To be healthy you'd better walk ten thousand steps. |
| D．The number of effective steps is the same for men and women. |
3 . Could bike share programs lead to greater cycling safety?
In April 2015, Philadelphia introduced a bike share program. By 2019, there were more than 1,300 bikes and 400 pedal-assisted electric bicycles available. People used them for about 50,000 trips a month.
Before the introduction of the bike share program, the rate of bicycle-car accidents had been gradually increasing. By May 2015, the month after the introduction of the program, the rate was twice that of January 2010.
But the researchers, writing in the American Journal of Public Health, found that from that time through the end of 2018, the rate decreased by an average of 13 percent a year, despite the increases over those years in the number of bicycles on city streets, and even though Philadelphia made no major basic construction changes, like adding many protected bike lanes (自行车道).
The lead author, Ghassan B. Hamra, an assistant professor at the Johns Hopkins Bloomberg School of Public Health, said it appeared that there is safety in numbers: the more bikes on the road, the more car drivers adapt to their presence, and the safer cyclists may be.
“We all know that bike riding is a healthy activity, physically and mentally,” he said, “but there might be concerns that if you introduce a bike share program there will be negative consequences. We saw no evidence of that in Philadelphia.”
1. What has happened to the number of bicycle-car accidents with the introduction of the bike share program?| A．It has increased. | B．It has reduced. |
| C．It remains the same. | D．It is unknown. |
| A．Many protected bike lanes have been added. |
| B．Car drivers are more used to their presence. |
| C．More people take up bike riding as a healthy activity. |
| D．Negative consequences have appeared. |
| A．He is in favor of it. | B．He disapproves of it. |
| C．He brought it in. | D．He is concerned about it. |
| A．Sharing bikes, cutting accidents | B．Problems with sharing bikes |
| C．Basic construction changes | D．Share program in Philadelphia |
4 . The United States has a vast network of National Parks spread all around the country. Here are some National Parks for you.
Arches National Park, Utah
More than 2,000 natural stone arches make Arches National Park a special place in Utah. Travelers from around the world come to see brilliant sunsets that light up the sky each night. Hikers and rock climbers will love the endless options for exploring, while more low-key visitors are sure to love the camping.
Acadia, Maine
Super close to Bar Harbor, one of Maine's most beloved tiny towns, Acadia National Park tops travel guides for the Vacation State. Before making your way to Mt. Desert island, dine on the country's most famous fish and lake advantage of the opportunity to go whale watching on the Atlantic Ocean. When visiting Acadia, set aside some time to hike and go boating.
Mount Rainier, Washington
We couldn't leave the park with you slowly moving ice off the list. Washington's Mount Rainier National Park, found southeast of Seattle, has 25 of them (along with the famous volcano) as its attention-catching sight. The National Park says it's "the snowiest place on earth where snow is measured regularly." If snowcapped peaks aren't your thing, plan to visit the park when the weather is warmer.
Great Sand Dunes (沙丘), Colorado
You probably imagine the Rocky Mountains when you think about Colorado, but did you know that the Centennial state is also home to the United States' largest sand dunes? See them for yourself at Great Sand Dunes National Park, where you can go sand boarding or "fat biking". Though June temperatures are said to be some of Southern Colorado's best, a warm winter day can be an equally enjoyable time to see the dunes.
1. What do Arches National Park and Acadia have in common?| A．Tourists can hike in the parks. | B．They are located in tiny towns. |
| C．Both of the parks offer sea food. | D．They offer free guide to travellers. |
| A．Sunsets. | B．Whales. |
| C．Ice. | D．Sands. |
| A．Arches National Park, Utah | B．Acadia, Maine |
| C．Mount Rainier, Washington | D．Great Sand Dunes, Colorado |
5 . These days, it seems like everyone wants to go out into space and live on new planets.Rather than depend on another pre-existing planet, could we make a new, proper planet ourselves?
To start with, if we do want to be living on it, we should find a good place in space to put the new planet. We’d want it to be in a habitable zone, meaning the planet should be at the right distance from its star to make sure there would be perfect temperatures and most importantly, liquid(液态的) water.
We’d also need the right materials to make the planet. Our Earth is made up of many different elements(元素). If we made our own new planet we’d probably want it to have similar elements and a similar structure(结构) We’ d also want enough water to form some oceans.
But even if we get all of the materials creating a new planet like Earth could have many troubles. It might be something more like a huge space station. It would be pretty expensive if we wanted it to be super big.
We would probably also need a lot of food since there s going to be many scientists and astronauts out in space working on this project!
According to NASA, each astronaut uses about 0. 83 kilograms of food per meal, including 0.12 kilograms of packaging(包装) material. Without the weight of the packaging material, we’d need about 780 kilograms of food just to feed one astronaut for a year.
Putting all these together could make it possible to make our own planet one day! In reality, creating a new planet would probably require a very modern technology and there would be tons of other things to think about. And if this is even possible, it likely won’t happen for a very long time.
1. What's the first thing we should do if we want to create a new planet?| A．To prepare enough food. |
| B．To design its inner structure. |
| C．To find a proper place to set the planet. |
| D．To collect materials similar to our Earth. |
| A．Our Earth. | B．Outer space. |
| C．The new planet. | D．The ocean water. |
| A．About 0. 12 kilograms. | B．About 0. 71 kilograms. |
| C．About 0. 83 kilograms. | D．About 0.95 kilograms. |
| A．It is a waste of money and time. | B．It should be one of NASA’S next plans. |
| C．It is not a good idea for humans. | D．It won’t come true in the near future |
6 . As Internet users become more dependent on the Internet to store information, are people remember less? If you know your computer will save information, why store it in your own personal memory, your brain? Experts are wondering if the Internet is changing what we remember and how.
In a recent study, Professor Betsy Sparrow conducted some experiments. She and her research team wanted to know the Internet is changing memory. In the first experiment, they gave people 40 unimportant facts to type into a computer. The first group of people understood that the computer would save the information. The second group understood that the computer would not save it. Later, the second group remembered the information better. People in the first group knew they could find the information again, so they did not try to remember it.
In another experiment, the researchers gave people facts to remember, and told them where to find the information on the Internet. The information was in a specific computer folder (文件夹). Surprisingly, people later remember the folder location (位置) better than the facts. When people use the Internet, they do not remember the information. Rather, they remember how to find it. This is called “transactive memory (交互记忆)”
According to Sparrow, we are not becoming people with poor memories as a result of the Internet. Instead, computer users are developing stronger transactive memories; that is, people are learning how to organize huge quantities of information so that they are able to access it at a later date. This doesn’t mean we are becoming either more or less intelligent, but there is no doubt that the way we use memory is changing.
1. The passage begins with two questions to ________.| A．introduce the main topic | B．show the author’s attitude |
| C．describe how to use the Internet | D．explain how to store information |
| A．Sparrow’s team typed the information into a computer. |
| B．The two groups remembered the information equally well. |
| C．The first group did not try to remember the formation. |
| D．The second group did not understand the information. |
| A．keep the information in mind |
| B．change the quantity of information |
| C．organize information like a computer |
| D．remember how to find the information |
| A．We are using memory differently. |
| B．We are becoming more intelligent. |
| C．We have poorer memories than before. |
| D．We need a better way to access information. |
