solar panels in space的作用（太空利用太阳能）
Some people think that older children should be required to take care of the younger children. Others think that this should be done by parents or other adults. Which one do you prefer？
3. 原因三： 对环境好，因为对自然环境的危害比较小。
3. 会破坏ozone layer，有很多ultraviolet radiation，对人和动物都会造成很大的危害，所以根本不环保。
choose： older children take care
1. Culturally， older children have been entrusted with the role of the care-taker in a family of more than one child. This is because they are often told to take care of their little brothers or sisters by their parents. Adding that they see their parents in the same way， it is plainly easy for them to identify themselves as parents. For example， girls usually like to tell stories to their younger brothers and sisters， or feed them when their mothers are busy with housework. Boys are like superheroes protecting their flesh and blood from any potential danger. So under certain circumstances， older children are good helpers in nurturing.
2. Furthermore， learning to nurture their younger family can help them better prepare for their adult life. Today， many children are spoiled and self-centered. Some of them are even indifferent to others. Consequently， they will have hard time socializing with others in future. In this respect， they are supposed to be taught how to be a responsible citizen. Even though they have very limited abilities in terms of taking care of others， this can make them more responsible and more thoughtful people. So this practice provides them an opportunity to grow up， not only grow old.
3. Finally， older children also can enhance family relationship. Many working women have trouble keeping a healthy balance between their family and their work. They often complain about their husbands and have been sick and tired of endless housework and baby-sitting. In this situation， older children can be a good helper in a family， who can reduce their mothers’ workload by doing some small things， making a better family atmosphere. This is definitely a positive way to keep family members stay together. Moreover， they will harvest good relationship with their younger brothers and sisters.
2. Do you agree or disagree with the following statement： These days， children spend more time in doing homework or participating in organized activities related to school or sports. However， they should be given more time to do whatever they want.
3. Younger school children should be required to study art and music in addition to math， language， science and history.