Wind power is a very clean source of energy. This is how wind power works. Wind makes windmills (风车) spin (旋转). When the windmills spin, they make electricity. Then we can use the electricity. A lot of people think that wind power is new, but that’s not true. 【小题1】 We still do those things today, but these days we mostly use wind power to make electricity.

Wind power is a very popular source of energy. Most people think that we should use it more and more. First of all, it’s clean. 【小题2】 Second, we can use wind power forever. After all, we will always have wind. Also, wind power is cheap, and it’s getting even cheaper.

A lot of people don’t understand wind power very well. They believe that there are problems with wind power, but many of those problems are not real. For example, some people say that windmills are dangerous for birds. They used to be true, but it isn’t true any more. 【小题3】 New windmills spin slowly, and they aren’t dangerous for birds.

【小题4】 One problem is that many people think windmills are very ugly. This is a problem for people, because windmills are often in very pretty areas. Also, wind doesn’t blow all the time, so we can’t use wind power all the time. Finally, windmills are noisy.

Wind power is becoming more and more common. 【小题5】 About 2. 5 percent of the world’s power comes from the wind. For some countries, that number is a lot higher. Wind power gives Denmark (丹麦) more than 25 percent of its electricity.

Alice Lee is a high school student studying at a private school． She is doing some voluntary work at an after﹣school program to help students from poor families．

On the first day of her work， she noticed that many kids were lining up for free sandwiches and fruits． She was surprised． One of the organizers explains that many of these students don't get enough to eat at home． So a school lunch or an after﹣meal might be the most food they would get all the day． She has also been told that some hungry kids can receive free lunches， but others are only allowed reduced﹣price meals， and those students' families have to pay for the part of their food．

Lee was shocked， she decided to offer help to those who are suffering from hunger， "I want other kids to understand that if you see a problem， you don't have to wait to be an adult to fix it，" says Lee． She and a group of friends are using their programme skill to create a new app called Food of Thought， which will allow parents， students， and even kind﹣hearted strangers to donate money to lunch accounts for students in a nearby school．