In this task, you're given an article and an answer. Your task is to generate the question for the answer based on the given article.

[Q]: Article: Most of us remember our teachers well. Three successful Americans talk about the teachers who encouraged them. Kevin Henkes is an excellent author and illustrator whose books include Lilly's Purple Plastic Purse, The Year of Billy Miller, and Kitten's First Full Moon, which won the Caldecott medal. "I grew up in the school days of silent hallways and desks in neat,evenrows. One day, our forth-grade teacher allowed the class to move the desks out of rows intogroups of four. It might seem like a small thing now, but it taught me that you could do things differently; you could think outside the box. That teacher helped me view my world differently. Good teachers can change lives." Katherine Applegate has won many awards for her books, including the Newbery Medal for The One and Only Ivan. She also created the Animorphs series with her husband, Michael Grant."My sixth-grade teacher in Michigan sensed that 1 wanted to write,so one day she sent me home to write about the word'blue'in as many ways as possible. Because of that,for the first time in my life, I thought of myself as someone with special skills as a writer, someone who was unique. My teacher's actions said'I see something special in you.'" In his role as U.S.Secretary of Education, Arne Duncan is in charge of the department that collects data and directs research on America's schools."My high school English teacher was amazing. She challenged us to express our ideas clearly in class and in our writing. There was no such thing as a bad question. She wanted to hear from us and encouraged us to speak up and express ourselves. She pulled things out of me that I didn't know I had inside. I think that is the genius of good teachers."
Answer: by asking her to write in various ways.
[A]: How did the teacher encourage Katherine Applegate?

[Q]: Article: Astronomers say they are on the point of finding planets like Earth orbiting other stars, which is a key step in determining if we are alone in the universe. A top NASA official and other leading scientists say that within four or five years they should discover the first Earth-like planet where life could develop, or may have already. A planet close to the size of Earth could even be found sometime this year. At the annual American Astronomical Society conference this week, each discovery involving so-called "exoplanets" --those outside our solar system -- pointed to the same conclusion:Quiet planets like Earth where life could develop probably are plentiful. NASA's Dew Kepler telescope and a lot of new research from the suddenly hot and competitive exoplanet field caused noticeable buzz at the meeting.Scientists are talking about being at "an incredible special place in history" and closer to answering the question. "Are we alone? For the first time, there's an optimism that sometime in our lifetimes we're going to _ that," said Simon Worden,an astronomer who heads NASA's Ames Research Center. "If I were a betting man, which I am, I would bet we're not alone." "These are big questions that reflect upon the meaning of the human race in the universe," the director of the Vatican Observatory, the Rev. Jose Funes, said Wednesday in an interview at this week's conference. Worden told The Associated Press: "I would certainly expect in the next four or five years we'd have an Earth-sized planet in the habitable zone."
Answer: Finding an Earth-like planet
[A]: What is very important in determining if we are alone in the universe?

[Q]: Article: At the recent O&P Extremity Games, I had the opportunity to observe a new generation of athletes with disabilities who were skateboarding and rock climbing. These young people really showed the promise of how rewarding physical activities are! We disabled can - and should be -- as active as anyone else. When we get and stay active, we will feel better, be able to do more, have healthier bodies, and look better. It is a fact that exercise actually produces energy and builds on itself. The more we exercise, the fitter our bodies are, and thus the more energy we have to enjoy recreation and the pleasure of life. Not everyone is cut out to be a competitive athlete, but there are things that we can do to strengthen our physical well-being. Experts recommend that spending as little as 30 minutes each day on physical activities provides benefits including lower risk of heart disease, cancer, high blood pressure, diabetes and other serious diseases. Taking steps to become physically fit does not have to mean acquiring expensive training equipment or a gym membership. Exercise can include simple walking and running, gardening, cleaning the house, swimming, tennis, bicycling (stationary or on the road) and so on. The key is to do it on a regular basis. Healthy lifestyles also require good nutritional habits. When choosing foods, nutritionists advise whole grains, flesh fruits and vegetables, fish, and lean cuts of poultry and meat. The benefits of drinking eight full glasses of water a day are also _ . Water provides the means for nutrients to travel to all our organs, improves skin tone , regulates body temperature and contributes to muscle strength and control, which is confirmed by scientists. Fitness results in completing the tasks of daily living, working a full day, and still having energy to participate in recreational activities. By being fit, you'll find that you enjoy recreational activities even more because you won't be tired or suffer from gore muscles. It is time, folks, to get moving. So let's all get out there and do some exercise!
Answer: He intends to call on people to do exercise.
[A]:
What's the author's purpose of writing the passage?