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Scientists use computer games to study how ants fight. Computer games can sometimes be very helpful to scientists! A team of scientists in Australia played Age of Empires, a war game, to study ants. They tried to find ways to help local ants live better.

Argentinian ants are an invasive species (入侵物种) in Australia. When they meet with local meat ants, the two ant types fight. And usually, Argentinian ants win. This is dangerous. When local ants die and the invasive animals grow in number, the newcomers may eat a lot of plants and harm the local environment.

Scientists want to help local ants win. They built two characters in the game: Knights as the meat ants that are bigger in size but smaller in number, and Swordsmen as the Argentinian ants that are smaller in size but bigger in number. When the game starts, the characters start fighting with each other just like the two ant types do in real life.

After rounds (轮) of fighting, nine Knights lost to 50 Swordsmen on the flat ground. But the same team of Knights beat 70 Swordsmen in an uphill (上坡的) environment. It showed that the local meat ants could do better in complex environments. The scientists also did tests with real ants. The results were the same.

The team believes that cities can add more lower plants under trees. This way, there will be more complex environments, and the meat ants may win the “wars” against invasive ants.

【小题1】What will happen if local meat ants die and Argentinian ants grow in number?
A.Scientists will be very dangerous.
B.The two ant types will live better.
C.Local meat ants may eat up a lot of plants.
D.Argentinian ants may hurt the environment.
【小题2】The underlined word “complex” means “______”.
A.harmlessB.polluted
C.made of many different thingsD.made up of few harmful things
【小题3】What is the better way to help the meat ants beat invasive ants?
A.To build more characters in the game.
B.To grow more lower plants under trees.
C.To let Argentinian ants smaller in number.
D.To make the meat ants much bigger in size.
【小题4】What can be the best title for this text?
A.Helping local ants fightB.Playing computer games
C.Giving a good suggestionD.Protecting the environment
2024·辽宁沈阳·一模
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London has a population of over 7,000,000. From about the year 1800 until World War II, London was the biggest city in the world. But now there are many cities which are much bigger than it. London is famous for many things. Tourists come from all over the world to visit its famous buildings and hear the famous clock, Big Ben. Like many big cities, London has problems with traffic and pollution which stop the city from developing. Over one million people a day use the London underground(地铁), but there are still too many cars on the streets. The air isn’t clear, but it is anyhow(不管怎样) cleaner than it was 100 years ago. For me, the best things about London are the parks. There are a lot of parks in the city. Five of them are in the city center. But my children’s favorite place is Hamleys, the biggest toy shop in the world.
【小题1】When was London the biggest city in the world?
A.In 1750.B.In 1850.
C.In 1950.D.In the 21st century.
【小题2】What’s Big Ben in London?
A.It’s a toy shop.B.It’s a park.
C.It’s a clock.D.It’s a museum.
【小题3】How many people use the London underground every day?
A.Over half of its population.
B.Over three quarters of its population.
C.Over one million.
D.Over 7,000,000.
【小题4】How was the air in London 100 year s ago?
A.It was much cleaner than it is now.
B.It was the same as it is now.
C.It was the cleanest in the history of London.
D.It was not as clean as it is now.
【小题5】Which of the following statements is true in the passage?
A.There are not too many cars on the streets.
B.There are 5 parks in the city.
C.Many big cities have the problems with traffic and pollution.
D.Children’s favorite place is Hamleys, the biggest park in London.

The music band Coldplay is taking actions to protect the environment. This includes using their fans’ energy to help provide electricity for their performances. In this way, they use electricity without adding carbon gases (碳气体) to the air. The band hopes to cut the amount of CO2 given out by its business activities by 50 percent.

The Coldplay stars have added special dance floors and energy-storing bicycles to their latest world tour performance. The purpose is to get fans to help produce electricity by dancing and riding. Each dance floor can support many people. It creates electricity when people move on it. Each of the bikes can create an average of 200 watts (瓦特) of electricity. In order to encourage fans to dance or ride more during the performance, they even have competitions to find out which group of fans can create the most electricity.

“Being green is a good business model. That’s what we’d like to show,” said Coldplay lead singer Chris Martin. “The changes will bring a sense of belonging to the fans. Everything in our show is planned to bring everyone into the same group, singing together. It makes us feel part of a community.”

Coldplay has taken other steps to protect the environment. One of its tour stages (舞台) uses recycled steel. The band also hopes to set up the world’s first tour battery (电池) system, made from 40 recycled electric car batteries. The hope is to power the whole show with batteries.

“It’s very expensive to try these things for the first time,” said Martin, “but we are very happy that we are changing.”

Coldplay is just one music group working to help the environment. Some other famous bands are also taking such steps.

【小题1】What does Coldplay use their fans’ energy to do?
A.To create 200 watts of electricity.B.To provide power for their shows.
C.To cut their business activities by 50%.D.To make their performances wonderful.
【小题2】What does the underlined word “It” in the second paragraph refer to (指代)?
A.The floor.B.The band.C.The stage.D.The bicycle.
【小题3】How does Coldplay encourage fans to dance and ride more?
A.By helping them to buy bicycles.B.By living in the same community.
C.By traveling around the world with them.D.By having electricity-creating competitions.
【小题4】Which ways are introduced to protect the environment in the passage?
①Riding energy-storing bicycles.        ②Driving or taking electric cars.
③Recycling electric car batteries.        ④Building stages with recycled steel.
A.①②③B.②③④C.①③④D.①②④

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