. 1. 【环保】Last Saturday, we went to Xishan by bus. It was March 12th, Tree Planting Day. We went to Xishan to plant trees. Our teacher divided us into three groups: the first group used spades to dig holes; the second group was in charge of bringing young trees and putting them into the holes. Then, the first group filled the holes. The last group carried the water for the young trees. At last, we totally planted five trees. We were all very delighted. Trees are helpful to our environment, because they can stop the wind . So we should plant more trees.Although we are so tired, we are happy! Because we are proud of ourselves!2. 【城市变化，环保】I was so happy to get your letter yesterday. I knew that you missing hometown so much. I will introduce the great changes in Tianjin nowadays. Ten years ago, there was only one subway. Now, six subway lines provide more convenience for people; and more subway lines are being built. In the near future, people can get anywhere by subway. People pay more attention on the environmental health. More trees were planted and more parks were built. And the living standards also enhanced much, people can earn more money and enjoy their lives. In a word, the living standard has been improved. I hope that you can be back and enjoy the life in Tianjin . 3. 【英语夏令营】The English Summer Camp will be held between August 6th and August 16th in the Meeting Hall of our school. In the English Summer Camp, you can give a lecture and have a debate with other students. Many experts will be invited to give experience about English learning with you. Moreover, you can participate a wonderful English party. At last, we will tour our city. Welcome students to take part in the English Summer Camp. Dont forget to write a journal to talk about your feelings on the English Summer Camp.4. 【梦想】Do you know what I want to be in the future? I have a dream, my dream is to be a doctor. I liked to saving the patients when I was a child. To make my dream come true, I will try my hard to enter a medical college in the future. I am good at math, Chinese and English. I think I will be good at physics, chemistry and biology, because those are all helpful to my future career. I often talk my dream to my friends and also get encouragement from them. If my dream comes true, I will try my best to cure more patient.5. 【进入美国家庭夏令营，学英语】I want to participate in the Summer Camp of Entering American Family. I like English very much, not only the language itself but also western culture. To take part in the Summer Camp, I hope that I can learn more about American history and culture and improve my English. I like reading books, listening music and travel. I am also interested in cooking. My English is very well, so I will communicate easily with American families. Thank you very much and look forward to your reply.6. 【环保】I took part in the “Environment Protector” activities with my classmates today. In the morning, we met in the Xigu Park at nine oclock. I saw much litter on the road, dirty pictures on the wall and some gum on the road. It was quite terrible. Then, we picked up the litter, clean the wall and wiped the gum. After a whole day of hard work, the park became cleaner and more beautiful. Now, its time for all the people to protect the environment. Its our duty. It needs each of us to improve the environment. We should make our city more and more beautiful.7. 【学英语】Everybody wants to study English well. It is not only because we can get high marks in English exam, but also English is useful to our future life. How to study English well? It is quite a question. Here are my ways to share with you. First, I take lots of notes in every class, and try my best to memorize them. Second, I always watch English movies and listen to English tapes to improve my pronunciation and listening. Next, studying with a group is also a good way to learn.At last, in daily life, I use English as often as possible. These ways are very useful. I think you will do well in English, too.8. 【爱好】I enjoy reading books very much, because there are lots of interesting things in them. Two years ago, I didnt like reading very much. I had plenty of time, but I spent lots of time on playing with computers. When I was very young, I didnt think reading book was interesting, because I found nothing more interesting than the computer games. Ive changed now. I enjoy reading novels, because therere lots of interesting stories. I love to read Harry Potter. Thats a good novel. I know that it is one of the best-sellers in England. I always lose myself in the interesting stories.9. 【学英语】Everybody has different ideas about learning English, but I think I learn English for enjoying life. There are more and more people coming from different countries, and the most familiar language to them is English. So, if I want to introduce myself and make friends with them, I need to learn English. English is also good for travel