Scientistsuse computer games to study how ants fight. Computer games can sometim-组卷网

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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 “______”.