2 . Physical education, or PE, isn’t required for all high school students. In some schools, it isn’t offered for some different reasons. But should high school students have physical education? The answer is certainly “yes”.

Today many people don’t do sports. But as is known to all. doing sports is very important for an adult. Teaching teens the importance of a healthy lifestyle and making fitness plans now can help teens put exercise in the first place as an adult.

High school isn’t that easy. Many students are under a lot of stress. Stress can be harmful to a student’s studies and life. Doing sports can help them deal with stress better, helping them live a happier life at school.

The American Heart Association says that 10 million kids and teens suffer from obesity (肥胖). Teens should get 60 minutes of physical activity per day to control their weight and to help their bones get stronger. The increase in activities that don’t get teens to move around, such as computer games, means many teens don’t get their required exercise. PE classes act as a public health measure (措施) to encourage physical activities and help teens have healthy weights.

Not doing sports increases teens’ hazard of developing many diseases. An active lifestyle offers a good way of protection from these health problems. As much as 75 percent of health-care spending goes toward treating medical conditions that can be prevented by lifestyle changes, according to the American College of Sports Medicine.

According to the President’s Council on Fitness, Sports and Nutrition (PCFSN), students who performed five hours of physical activities each week improved their academic (学业的) performance. Students from programs with no physical activity, who used the extra time for classroom study, did not perform better on tests than those who gave up some study time in support of physical education.

4 . What if everyone in the world was exactly alike? The world would be extremely _______. I believe it’s important to _______ people for who they are. _______ are important and they should be respected. Many people throughout history, like Albert Einstein and Thomas Edison, did great things, but were _______ strange, because they had strong feelings about something. I can _______to these people, because I’ve been in that situation before.

It all started in elementary school when I _______ that I wasn’t like anyone else. I grew crazy about certain subjects. _______, these subjects didn’t interest other kids and my teachers.

I might be different, because I have more different ________ than other teenagers, but that doesn’t give them the right to be so ________ to me. Some kids make fun of me for what I like most. People also make fun of me for ________ facts about volcanoes, whales, and many other scientific things. My mom says that she has been able to be well informed by just listening to me, but I’ve even been ________ for being smart. Sometimes I wish I were like everyone else, but not ________, because I believe people should be respected for being different, and we’re all different in our own ways.

5 . One afternoon I toured an art museum while waiting for my husband to finish a business meeting. I was looking forward to a quiet view of the wonderful works.

A young couple viewing the paintings ahead of me chatted________between themselves. I watched them a moment and ________she was doing all the talking. I admired his patience for________her constant words. Annoyed by their noise, I moved on. I encountered them several times as I moved through the various rooms of art. ________I heard her constant talking, I moved away quickly.

I was standing at the counter of the museum gift store making a________when the couple approached the exit. Before they left,the man ________into his pocket and pulled out a white object. He turned it into a long cane (手杖) and then fought his way________into the coatroom to get his wife's jacket.

“He's a_________man,” the clerk at the counter said, “Most of us would________if we were blinded at such a young age. During his recovery, he made a________that his life wouldn't change. So, as before, he and his wife come in whenever there's a new art show.”

“But what does he get out of the art?” I asked, He can't see.”

“Can't see! You're wrong. He sees a lot. ________than you or I do,” the clerk said, “His wife________each painting so he can see it in his head.”

I learned something about patience, courage and love that day. I saw the________of a young wife describing paintings to a person without ________and the courage of a husband who would not allow blindness to change his life. And I saw the love________by two people as I watched this couple walk away arm in arm.

6 . If you think that running marathons will help you live a long and healthy life, new research may come as a shock. According to a recent scientific study, people who do a very strenuous workout are as likely to die as people who do no exercise at all.

Scientists in Denmark have been studying over 1,000 joggers (慢跑者) and non - joggers for 12 years. The death rates from the sample group indicate that people who jog at a proper pace two or three times a week for less than two and a half hours in total are least likely to die. The best speed to jog at was found to be about 5 miles per hour. The research suggests that people who jog more than three times a week or at higher speeds of over 7 mph die at the same rate as non - joggers. The scientists think that this is because strenuous exercise causes structural changes to the heart and arteries(动脉). Over time, this can cause serious effects.

Peter Schnohr, a researcher in Copenhagen, said, “If your goal is to decrease risk of death and improve life expectancy(寿命), jogging a few times a week at a proper pace is a good strategy. Anything more is not just unnecessary, and it may be harmful.”

The implications (暗示) of this are that moderate forms of exercise such as tai chi, yoga and walking may be better for us than “iron man events, triathlons and long - distance running and cycling. According to Jacob Louis Marott, another researcher involved in the study, “You don't actually have to do that much to have a good impact on your health. And perhaps you shouldn’t actually do too much”.

9 . There are around 100 tribes(部落)that live in global isolation, mostly in South America and India. The Sentinelese have lived on one of the Andaman Islands in Eastern India for 60, 000 years. They protect their island by fighting against people from outside. Their language is different from any other known language. Another Andaman tribe is the Jarawa. In the past, they were independent and fought against anybody trying to make contact with them. But in 1998, the Indian government built a road across their land, and since then, they’ve had more contact with the outside world.

Some Amazon tribes avoid contact because of unhappy memories. The Mashco-Piro left their vegetable gardens after rubber companies killed most of their tribe at the beginning of the 20th century. Those who survived became nomadic(游牧的)and started hunting animals in the forest.

The Awa live in the Amazon forests ofBrazil. Out of 350 members, 100 have no contact with the outside world. They left their villages and adopted a nomadic lifestyle around 1850 to escape attacks by Europeans. In the following years, farmers in nearby communities started cutting the trees to expand their farmland. The Awa lost most of their hunting land. The few Amazon tribes that still exist are fighting to keep their traditional way of life.

Survival, an organization that fights for the rights of tribal people, says that uncontacted tribes are the most vulnerable(弱势的)humans on the planet and that’s why their environment should be unavailable to the rest of us. After years of pressure, the organization got Brazil’s government to clear non-natives from the Awa land. All non-Awa people are leaving so the tribe can get their forest back.

But some think it's impossible for tribes to stay isolated forever in a connected world. Contact will be made one day. So the question is：Whose choice should it be, ours or theirs?

10 . After I graduated from the university, I got so pressured in finding a job. I did a lot of _________ both online and handing in person to a particular company. It occurred, one day I went to _________ my CV (履历) to a certain company and I wanted to meet the human resource manager in person because I believed it was a better _________ than leaving my CV at the reception.

Unfortunately, in this company the _________ did not allow me to see the human resource manager and _________ asked me to just leave the CV with her and that she would _________ it. I was really _________ since I knew she wouldn't do that and my CV will just be thrown in the trash can, I thought so because it usually _________ a lot in some other companies. So I just left with my head _________ and never thought about it again since I knew I would never get any __________ from the company.

Weeks passed and one day I received a call from a(an) __________ number and guess what...it was the human resource manager of that same company. I was really shocked since I did not __________ it at all. So he said he received my CV and that he would __________ it.

I was so happy and felt bad at the same time for __________ the receptionist the other day. This humbled me and it was a __________ to believe in people and not assume things just because of the norm.