One fresh sunny day, while I was swimming in the water, I felt something special going through my gills（腮）. It was a different kind of water. I also found many of my friends became sick. Some of them were dying. I was thinking about what I should do to save my friends, so I decided o do some research for my underwater life.

    My research started. At first, I noticed there were many bottles, cans and other kinds of rubbish in the water. Then I went on. I got closer and then I tasted many different kinds of liquid（液体）. To my surprise, I noticed a man pouring some liquid into the water. Others also saw him doing so and they decided to follow him. I hated it! I wish I could have told them that it was killing us!

    I think it is so stupid for people to do this to the earth that they are living on! I can't understand why they are doing this. Humans should stop throwing waste into the lakes or rivers. I want to have a normal life with my friends. People should stop being so selfish and care about the environment. If they do that, everyone will be fine and will have nothing to worry about. I suggest they follow my words. If so, I believe everyone will be able to live a happy life.

    Amy is a biologist working at a marine （海洋的） park. These kinds of parks provide fun and education for tens of thousands of people each year.

    Amy takes care of many animals in the park, but she also does important research. As she observes the animals that she looks after, she learns more about their needs and behavior. This information helps the animals in the park, but it can also be used to protect other members of the species（物种） in the wild.

    It's hard work to look after these animals. Their needs often change according to different hours of the day. So Amy must depend on her science knowledge and good number sense to help her make the right decisions all day long.

    Even though dolphins spend much of their time underwater, they are mammals. This means that they must come to the surface to take in air. Dolphins give birth to their young. They're not hatched from eggs. Just like all other mammals, mother dolphins must nurse, or feed milk to their babies.

    Amy and her team know this first﹣hand. One of their dolphins recently gave birth. A baby dolphin is not small, either. It was almost 1 meter long the day it was born. A big dolphin usually eats about 4% of its body weight in food every day. Amy knows that a mother dolphin that is nursing needs twice the food. So when the baby dolphin was born, Amy immediately doubled the mother's food every day.

    This is a street crossing. There are red and green lights at each corner. Drivers must watch the lights carefully.

    When there is a green light, the cars may go on. When there is a red light, the cars must stop.

    They must wait until the red light changes (变成)to green. Then they can go on. Sometimes the cars want to make a right turn or a left turn. They can make a right turn when the light is green or red. But they must wait until the green light is shining (闪亮) if they want to turn left. Some people are color-blind (色盲的). They can't see the difference (不同点) between red and green. These people mustn't drive, or there may be an accident (事故) .We must keep our street safe (安全的).

注意：

1.表达中必须包含所给要点，可以适当发挥，不要简单翻译。

2.词数 90 左右，开头已经写好，不计入总词数。

3.表达中请勿提及真实校名和姓名。

Students in our school are free to choose some special courses according to their interest.

……

The Golden Snub-nosed Monkey(金丝猴) is a special kind of monkey that mainly lives high up in the mountains in China, Vietnam and Burma. They have a flat nose that points up, which is really two nostrils(鼻孔). This helps them breathe well in the thin air up high in the mountains. Their fur is golden and very thick, which not only keeps them warm in the cold mountain weather but also helps them go well with their forest homes.

These monkeys like to live together in groups with a big, strong male monkey as their leader. The leader protects the group and guides them to food. They communicate with each other through sounds and body movements.

Golden Snub-nosed Monkeys spend most of their time in the trees. They love to climb trees and jump from branch to branch. They are very good at moving around in the trees. They eat mostly plants like leaves and fruits, but they also eat insects and small animals when available. Sadly, these animals are not common to see because of human activities. Many trees are cut down every year. We need to help protect these monkeys and their homes.

These monkeys are very beautiful and important for the mountains. They are a symbol of nature's beauty and a reminder of our duty to protect the environment. By learning about them and helping to keep their homes safe, we can make sure that people in the future can also see these wonderful animals that live in the mountains.

1.活动时间、地点；

2.活动目的；

3.活动内容（至少2个）。

Hello, everyone. I am going to introduce a meaningful activity designed by our school.