When I was young, I lived in a small village in Melaka, Malaysia with my parents and two brothers. ______ we were poor, we lived happily. The Lin family, living in the bicycle shop opposite our house, had an even ______ life.

Mr. Lin, the bicycle repairman, had six children. He couldn’t buy new clothes and get enough food for them. His children were always dressed in old clothes and looked very ______. My father was kind-hearted. He ran a grocery store (食品杂货店). He ______ took whatever food we could spare to Mr. Lin.

To make more money, Mr. Lin started selling second-hand ______ in his shop. He worked very hard. As time ______, the number of customers in his shop increased and a lot of bicycles were sold out. The business in his shop got better and better.

It was at this time that my father fell ill for no clear reason. My mother took him to see doctors many times, but he didn’t get better. Even worse, the business in the grocery store was in danger of failing. And one of us children had to stop schooling because we could not ______ the fees (费用).

Mr. Lin knew about our difficulties and came to help. He introduced my father to a famous doctor. And not long, the doctor healed (治愈) my father. Mr. Lin also raised money to support ______ education.

Thanks to Mr. Lin, things got better. Whenever I met up with Mr. Lin, I would thank him ______ his help. Mr. Lin said with a big smile, “I’m just repaying (回报) the ______ that your father has shown me.”

Astronauts would face dangers both getting to and surviving (生存) on Mars. Let’s learn about surviving a trip to Mars.

What would it take to keep people safe and healthy on a trip to Mars? Scientists are already working on it though the trip may be many years later.

Over the last 60 years, many spacecraft (航天器) have flown by, orbited (沿轨道运行) and even landed on the Red Planet. However, humans could work faster and smarter than machines. That’s why the United States, China and other countries want to send people to Mars. But surviving this trip would not be easy.

A trip to Mars would be the farthest journey in human history. Mars is about 225 million kilometers away, so it would take astronauts at least six months to reach there. However, it only takes a few days to get to the moon.

While space travel is never free of danger, it takes a lot more health risks to travel in space for a long time. For one thing, staying in space for long periods makes the human body weak. Also, it puts pressure behind the eyes and causes eye problems. But gravity (重力) machines could help.

Then there’s space radiation (辐射) to worry about. It might raise the risk of health problems. especially for astronauts who will have long journeys. Scientists are working out the problems. They have found taking certain vitamins (维生素) can help.

Astronauts will have to pack light to lift off from Earth. But they won’t be able to get things they need like astronauts on the space station do. Astronauts on the space station practice for this by growing lettuce and other food in space. Engineers are developing 3-D printing techniques which could allow future Mars astronauts to build tools as needed.

Cheng Feng is a teacher. However, to many of her students, the 33-year-old teacher is more than that. Cheng’s care for her students has made her “a mother” to them.

Over the past years, Cheng has gone into the mountains and worked in several poor schools in Poyang to help village children.

Right after graduation in 2011, Cheng became a teacher at Tutang Primary School in Youcheng Town of Poyang. Over the following four years, she did well at her job there.

Beitang Primary School is a poor school far away from her home. When Cheng found out it was on going to close because of a lack (缺少) of teachers, she decided to give up her life at Tutang Primary School and go there.

After arriving there, she learned that because of the poor educational conditions, many local parents had sent their children to schools further away. Cheng tried her best to encourage seventeen students to return. She called upon her college classmates to offer a helping hand. To make the students’ life more colorful, Cheng learned music, sports and art courses online and then taught the students. As things got well at Beitang Primary School, Cheng went to Siwanghu Primary School.

Cheng’s husband is 35 years old. He always supports Cheng’s choice. He has also served as a teacher in Poyang over the years.

“We should help the children to see further and dream bigger.” Cheng says.

61. 在我们的成长过程中，自律起着重要的作用。为了加强青少年的自我约束能力、某英语杂志社正在开展以“争做自律好学生”为主题的征文比赛。请你以How to be a self-disciplined student为题，写一篇英语短文参赛。

How to be a self-disciplined student

Self-discipline plays an important role in our life. We must be strict with ourselves in everyday life. ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________