题干

环境保护

云南丽江古城“城依水存,水随城在”,1997年被列入“世界文化遗产名录”后,游客剧增。据2005年监测,河流流经古城前后,水质由优变为较重污染。

据资料分析丽江古城河水污染的原因,并提出治理河水污染的建议。

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答案(点此获取答案解析)

原因:游客剧增,旅游(服务)业迅速发展,生活污水量猛增且(未经处理、不达标)排入河中。

建议:合理控制进入古城的游客量,将游客接待转向新城区,逐渐实现古城“外住内游”;严格执行污水达标排放,控制生活污水直接向河中排放,兴建污水排放管网;兴建污水处理设施,提高生活污水集中处理率。

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B

    During the summer holiday, some students might have been busy with traveling, summer camps and all kinds of courses. But a special group of Chinese middle school students decided to taste the hardship of life outside school.

    Twelve students in a big city sold vegetables at a local market together. Within 12 days, they made more than 1,500 yuan.

    Among them, the oldest is 21 years old, while the youngest is just 10. They are all cousins in a big family and eight of them are from rural areas.

    “Compared to traveling, such social practice connects us and makes us learn how tough our parents are,” said Dalin, 18, to the City Morning Post. Dalin, a senior high graduate, and her 12-year-old brother Xiaolin came up with the idea.

    They learned to work hard to sell their veggies. Every morning they had to wake up at 3 o'clock. Some of them went to the fanner's market to buy vegetables. Some of them went to the local market lo lake up a temporary stall(临时摊位). To lower the cost, they learned to bargain(讲价) with the sellers.

    At abou16:30 am, they began to sell vegetables. They peddled(吆喝) loudly to attract(吸引) customers. After several days, they got some experience, too.

    For example, it was better to put vegetables in order and bigger ones on top. When the vegetables are too heavy, they should give customers an extra plastic bag.

    When they finally packed up and went home, they had a small meeting. Everyone took notes and shared their feelings.

    “We are tired,” said Dalin. “but we gained a lot.