I want to speak to you about the state of the playground.     1    People are throwing their garbage everywhere. They leave garbage on the ground instead of using the garbage cans.       2    这对孩子们来说是一件危险的事情. Yesterday, a six-year-old kid fell and cut his hand on a broken bottle. Immediately,     3    the boy was taken to hospital. Also, the garbage makes the playground dirty and     4    没有人想去那儿

I would like you to handle this problem right away. For example,     5    you should buy more garbage cans and stop people from littering.

Please take my suggestions into serious consideration. I am waiting for your answer.

Best regards!

Jerry Broker

    1     Finally,we arrived in Loulan after several days of travelling.It was a stopping point on the famous Silk Road between the East and the West.The ruins of the Loulan Kingdom were discovered by Sven Hedin who also discovered a lot of treasures.     2     这片沙漠曾经是一片大树成荫的绿洲，but they were cut down and that resulted in the city being buried by sand.

Man has been interested in robots and     1     robots exist for quite some time. Scientists are always inventing new and better robots, which will play an important role in our future lives.

First,     2     smart robots will help us with the housework. They will take over jobs such as preparing meals, washing dishes, and sweeping the floor, so that we will have more free time to have fun.

Second, robots will help us with our work.     3     They will help us to do all the heavy and dangerous work, and help out in hospitals, schools and offices.

Third,     4    机器人将是我们的朋友. Whenever we feel sad, lonely or upset, we can have a chat with a robot. Robots will not only be good listeners but also     5     会给我们提供建议.

In conclusion, robots will be more and more intelligent and will benefit us in many ways.

Have you ever been surprised by the trend that young people would rather stay indoors than go outside?     1     This phenomenon (现象) has drawn great public concern. To this phenomenon, different people come up with various ideas. Some people are in favor of the idea of keeping indoors. They point out the fact that       2    . 待在家里可以省很多钱. They also argue that they would rather save time to do other things than waste time to walk around.     3    . However, other people stand on a different ground. They consider it is harmful to stay indoors. They firmly point out that people would be in poor health if they always stay indoors. Most young people watch TV, play computer games and search the Internet when they keep indoors.     4    . 年轻人需要做锻炼，享受新鲜的空气. As far as I am concerned, it does harm to stay indoors for a long period. We ought to enjoy the beautiful scenery outside and talk with people.     5    . Though with the wide use of the Internet, we can almost do everything at home, we have to enjoy our outdoor lives.