We want to explore and try to better understand the world in which we live; Space exploration is one of the ways. Through the exploration of space, we can begin to unravel the mysteries of our universe, and to better know our living environment.

    Space exploration provides us with knowledge about the beginning of our solar system, our own planet and ourselves. It also helps answer the questions that have puzzled us for many years. Solar system exploration is important because it is good for us.

    Space technology has become an important part of our daily lives. Some technology uses satellites to communicate. Satellites are also used to examine the changes in the Earth's climate and seas, for weather report and for military. We also use satellites in food production. Because of the use of space technology in crops, fewer and fewer people will suffer hunger.

    The space program provides a chance for nations to work together. The cooperation(合作) promotes peace and understanding between governments and their people. Many governments have taken part in the space technology, including the United States, Russia, Japan, the European nations and India. In the near future, other nations will take part in it. In fact, the United States remains the leader in new space technology.

    "What? You too? I thought I was the only one." Have you ever said to someone? If so, you may have ended up becoming friends.

    It seems that similarity often helps form a friendship. Aristotle once said, "Some define (给……下定义) it (friendship) as a matter of similarity; they say that we love those who are like ourselves."

    Now, there are some scientific explanations for this idea. The scientists from the University of California said friends have similar brains, Scientific American reported.

    The scientists invited 42 university students to take part in a scientific test. Each student watched the same set of videos. At the same time, the scientists scanned (扫描) their brains and recorded their brain activities.

    According to their study, friends who watched the same videos reacted (反应) in similar ways. Similar parts of their brains lit up while watching the videos, especially the parts that were connected with motivation, learning and memory. However, people who weren't friends had different reactions to the same videos.

    "Having close friends whose brains react like ours may be rewarding because it reinforces (加强) one's own values, opinions and interests," lead scientist Carolyn Parkinson told Business Insider.

    But brain similarity is not the only thing that can result in a friendship. Scientists from the University of Leipzig, Germany, found that a friendship is also based on how physically close you are to someone. They did a scientific test on first-year college students who met in class for the first time. In this test, students who sat next to each other were more likely to become friends.

作文要求：（1）可在思维导图内容提示的基础上适当拓展信息；（2）不能照抄原文；不得在作文中出现真实的校名、地名和姓名；（3）词数80左右。作文的开头已给出，不计入总词数。

Li Hua

Hi! After reading your story,

This is a new school in Shenzhen, Guangdong. There are 55 classes from Grade One to Grade Nine. It is big. In this school, the students can sleep in their classroom at noon.

After lunch, students put all the desks and chairs in the middle of the classroom. Then they get beds out of the drawers（抽屉）. At last, all the students find their beds to sleep. After five minutes, the classroom turns into a special（特殊的）bedroom! "It is good to have a rest in the classroom!" said Liu Mingming, a student of Grade Six.

The head teacher Luo Can got the good the idea of the drawer bed. "It can help students learn better in the afternoon.", she said.

"The idea is so great. Good school and good head teacher!" said Chen Hong, one of the parents in the school.

In recent years, more and more farmers in China have moved to cities to work. Many of them leave their children behind in villages. These children are called left- behind ones. In China, there are more than 60 million left-behind children. It is about a third of the children in the countryside and almost a quarter of the country's children. 40% of them are under age 5. 

Left- behind children often face more problems than others. Safety is a big problem. Many children are too young to look after themselves. It is even sadder that some left- behind children die from drowning(溺水) or traffic accidents. 

Another problem is about psychological(心理的) health. Left-behind children are hungry for love. A report says that more than 16% of them think parents don't love them and over 80% always feel not safe. They are usually oversensitive(过度敏感的), and don't get along with others. 

Their education is also serious. According to a research, about 20% of left- behind children think they are not as good as others. Many are not interested in studying at school. They often don't do the homework and go to school late. Some children even take part in criminal(犯罪的) activities. 

To make left- behind children live a happy and healthy life, our government as well as many people has done a lot. Every one of us should give a hand to them. 

The Double Ninth Festival is one of the most important {#blank#}1{#/blank#}（festival）in China. It is {#blank#}2{#/blank#}special day for elderly people. It {#blank#}3{#/blank#}（begin）long ago. The festival is {#blank#}4{#/blank#}the ninth day of the ninth month in the lunar calendar（阴历）. As the Chinese word for"nine"has the same sound as the word for"long", people take the Double Ninth Festival to send {#blank#}5{#/blank#}（they）best wishes to elderly people. They do many activities {#blank#}6{#/blank#}（show）love and respect to the elderly. Generally, people celebrate the day by {#blank#}7{#/blank#}（spend）time with their older family members and climbing mountains in the hope that the elderly will live much longer. Also, they {#blank#}8{#/blank#}（usual）drink chrysanthemum wine（菊花酒）and wear a plant called zhuyu as the symbol of warding off evil and wishing for longevity. It is a {#blank#}9{#/blank#}（tradition）virtue（美德）in China to respect elderly people. That's {#blank#}10{#/blank#}the Chinese know that elderly people have knowledge and experience that young people can learn from.