阅读下面的短文, 完成下面的任务。
A new study finds people in big cities walking faster than before. Is the pace (节奏) of life in our cities
increasing? Yes, according to a recent study. Last year researchers visited 32 cities and measured how fast
people walked. They timed adults to see how long it took them to walk 18 meters along the sidewalk.
Researchers found that walking speed today is about 10 percent faster than ten years ago. They also
learned that some of the biggest changes took place in Asian cities like Singapore and Guanzhou. The two
cities had the largest increase in walking speed. Nowadays, over half of people in the world live in cities.
Certainly the world's pace of life is becoming faster and cities are becoming more crowded.
1. 将划线部分译成汉语：
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根据短文回答问题
2. What does the new study find?
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3. For the study, how many cities did the researchers visit?
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4. In Asia, which cities had the largest increase in walking speed?
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5. Does the passage mention why so many people live in cities?
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