4 . A satellite is an object in space that orbits around another. It has two kinds — natural satellites and artificial satellites. The moon is a natural satellite that moves around the earth while artificial satellites are those made by man.

Despite their widespread impact on daily life, artificial satellites mainly depend on different complicated makeups. On the outside, they may look like a wheel, equipped with solar panels or sails. Inside, the satellites contain mission-specific scientific instruments, which include whatever tools the satellites need to perform their work. Among them, high-resolution cameras and communication electronics are typical ones. Besides, the part that carries the load and holds all the parts together is called the bus.

Artificial satellites operate in a systematic way just like humans. Computers function as the satellite’s brain, which receive information, interpret it, and send messages back to the earth. Advanced digital cameras serve as the satellite’s eyes. Sensors are other important parts that not only recognize light, heat, and gases, but also record changes in what is being observed. Radios on the satellite send information back to the earth. Solar panels provide electrical power for the computers and other equipment, as well as the power to move the satellite forward.

Artificial satellites use gravity to stay in their orbits. Earth’s gravity pulls everything toward the center of the planet. To stay in the earth’s orbit, the speed of a satellite must adjust to the tiniest changes in the pull of gravity. The satellite’s speed works against earth’s gravity just enough so that it doesn’t go speeding into space or falling back to the earth.

Rockets carry satellites to different types and heights of orbits, based on the tasks they need to perform. Satellites closer to the earth are in low-earth orbit, which can be 200-500 miles high. The closer to the earth, the stronger the gravity is. Therefore, these satellites must travel at about 17,000 miles per hour to keep from falling back to the earth, while higher-orbiting satellites can travel more slowly.

6 . I have struggled with feelings of unworthiness since forever. My most painful moments were at parties. My friends made fun of me because I was rhythmically (有节奏地)__________ and I couldn’t get my__________ body to imitate the latest dance moves. I was never chosen to dance. I felt like I didn’t__________.

Around age 12, I decided that the way to__________ these feelings of unworthiness was perfection. If I was just perfect then I would fit in. But this strategy didn’t__________.My self-esteem (自尊心) was high when I got good grades and felt__________, but crashed when I didn’t do well__________, or was left out.

After several years of spiritual growth, it__________ me that for many of us, self-worth is tied to our__________. We experience low self-worth__________ we fail or lose approval. So I have begun to cultivate an unconditional self-worth. It’s not about doing things perfectly.__________, “Unconditional self-worth” is the______ that you deserve to be alive, to be loved and cared for.

The__________ to unconditional self-worth is not always easy. It takes courage to free yourself from the __________ you’ve placed on your worth. But this journey is beautiful and worth taking. So I challenge you to embrace yourselves and find your metaphorical (隐喻的) __________ floor and move freely.

7 . In his 1936 work How to Win Friends and Influence People, Dale Carnegie wrote: “I have come to the conclusion that there is only one way to get the best of an argument — and that is to avoid it.” This distaste for arguments is common, but it depends on a mistaken view of arguments that causes problems for our personal and social lives — and in many ways misses the point of arguing in the first place.

Carnegie would be right if arguments were fights, which is how we often think of them. Like physical fights, verbal (言语的) fights can leave both sides bloodied. Even when you win, you end up no better off. You would be feeling almost as bad if arguments were even just competitions — like, say, tennis tournaments. Pairs of opponents hit the ball back and forth until one winner comes out from all who entered. Everybody else loses. This kind of thinking explains why so many people try to avoid arguments.

However, there are ways to win an argument every time. When you state your position, formulate (阐述) an argument for what you claim and honestly ask yourself whether your argument is any good. When you talk with someone who takes a stand, ask them to give you a reason for their view and spell out their argument fully. Assess its strength and weakness. Raise objections (异议) and listen carefully to their replies. This method will require effort, but practice will make you better at it.

These tools can help you win every argument — not in the unhelpful sense of beating your opponents but in the better sense of learning about what divides people, learning why they disagree with us and learning to talk and work together with them. If we readjust our view of arguments — from a verbal fight or tennis game to a reasoned exchange through which we all gain respect and understanding from each other — then we change the very nature of what it means to “win” an argument.

A poetry reading competition

10 . Concerned by the recent economic hardship, BG Cares, on Saturday, gave out food to poor Nigerians in Yaba, urging well-meaning Nigerians to be their neighbors’ keepers.

BG Cares, which led a group of _______ in Nigeria on a ride for charity(慈善), said it was working to show _______ towards members of society. Speaking at the event _______ “Jollof to the Street”, President of the Bikers, Kayode Palmer, said, “It is why we ride. Altruism(利他主义) has been the driving force behind BG Cares’ commitment(投入) to _______ others.”

A statement by BG Cares _______ said that it was driven by the determination to change the _______ stories about the biking community, which could help to clear up the misunderstanding between bikers and non-bikers. The statement   _______ , “At the heart of their programme lie their charity outreaches(外展服务), which have become a part of their task to create a positive effect in the lives of those _______ .”

The yearly“ Jollof to the Street” charity ride has become a _______ for the group, showing their values of kindness. Through the BG Cares, the group works with other charitable organizations, making a(n) ________ effort in bringing positive change. BG Cares hopes that their charity ride will serve as a powerful ________ for others to join hands and make a ________ in Nigeria.

BG Cares expresses heartfelt appreciation to all their ________ , partners and volunteers, whose giving made the “Jollof to the Street” charity ride a ________ . Their continued support   ________ BG Cares to continue improving the lives of poor communities across Nigeria.