C．Because it is very rich and has a lot of attractions.

　　D．Because foreign people prefer small towns.

　　解析：推理判断题。第二段的开头部分提到高淳县青少年厌倦了家乡的悠闲生活，下文提到正是因为这种生活才引起了Cittaslow的关注，桠溪将被指定为中国首个“慢城市”，由此可推断B项正确。

　　答案：B

　　4．It can be inferred from the passage that ________.

　　A．young people at Yaxi enjoy their life very much

　　B．China is more and more popular with foreign people

　　C．the first McDonald's in Europe was opened in Spain

　　D．the lifestyle of “slow city” will be good to environment and people

　　解析：推理判断题。根据最后一段中Cittaslow所倡导的理念可推测“慢城市”的生活方式对环境和人都有益。

　　答案：D

　　B

　　(2017·昆明毕业班检测)If teens could reduce the salt they take in every day by 3,000 milligrams (mg), they would cut their risk of heart disease and stroke (中风) greatly in adulthood, researchers say.

　　Based on the results of a computer modeling analysis, researchers found that a 3,000 mg reduction in sodium (钠) by teenagers could reduce hypertension by 30 percent to 43 percent when they become adults.

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