We've talked about snails (蜗牛) and their slow move. But much of the time snails don't move at all. They're in their shells —sleeping .

    Hot sun will dry out a snail's body. So at the least sign of hot sun, a snail draws its body into its shell and closes the opening with a thin cover. Then it goes to sleep. A snail will die in a heavy rain. So whenever it rains, it goes inside its shell house and goes to sleep. A snail can sleep for as long as it needs to. It can take a short sleep. Or it can sleep for days at a time. And it spends all the winter months in its shell, asleep.

    In spring the snail wakes up. Its body, about three inches long, comes out of from the shell. When hungry, the snail looks for food. It can't see very well. Its eyes, at the ends of the top feelers are very weak. But its sense of smell is very strong. It helps the snail to the new greens. Then the snail's little mouth goes to work.

    A snail's mouth is no longer than the point of a pin(针). Yet it has 256,000 teeth! The teeth are so small that you can't see them. But they do their work. If you put a snail in a hard paper box, it will eat its way out. And if a snail wears out its teeth, it will grow new ones.

    Mostly, a snail looks for food at night .But on cloudy days it eats in the daytime. It eats all day long. A snail can go on eating for hours and never feel full.

假设你是李明，你的学校正在策划一次郊游活动，向学生征集活动方案。请你以A Wonderful Trip in the City Zoo为题，写一篇短文，介绍你推荐的地点the City Zoo。

内容包括：1. 动物园与学校的距离，采用何种交通工具，所需要的时间；2. 动物园里的一位动物明星（来自哪里，外表和特点）；3. 游客须遵守的规则（如禁止喂食；禁止喧哗等）。

作文要求：1. 不得出现真实姓名和校名；2. 词数80词左右（已给出的开头不计入总词数）3. 卷面工整，逻辑清晰。

A Wonderful Trip in the City Zoo

The school trip is coming. I think the City Zoo is a good place to have fun. 

In most parts of the world, many students help their schools make less pollution.  They join the Environment Club.  In the club, people work together to protect the environment. 

No-rubbish lunches.  How much do you throw after lunch? The Environment Club asks students to bring their lunches in bags that can be recycled.  The students try their best to make less rubbish. 

No-car days.  No-car days were started by 35 cities in France on 22nd September, 1998.  They were started to protect the environment.  By now, more than 1,000 cities around the world have had a no-car day.  In China, more and more people are taking part in the activity.  On a no-car day, nobody comes to school in a car—not the students and not the teachers! Cars give pollution to our air, so remember: Walk, jump, bike or run! Use your legs! It's lots of fun!

Turn off water! Do you know that some broken toilets could waste 20 to 40 ml of water an hour? In a year, that will fill a small river! In the Environment Club, the members mend those broken toilets. 

We have only one Earth.  Let's work hard together to make our world cleaner and more beautiful. 

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