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When most people think of rodents(啮齿动物), they either think of pests like mice and rats, or cute animals, like guinea pigs or squirrels. What does not usually come to mind is the grass-chewing, water-loving, dog- sized capybara (水豚). Weighing up to 66 kilograms, the capybara is the world's largest rodent. And that might be the least interesting thing about this wonderful animal.

Native to South America, capybaras are found in grasslands near lakes or rivers. They are excellent swimmers and spend much of their time in the water. They have webs between their toes to help them swim even better. Moreover, the position of their eyes, ears, and noses on the tops of their heads helps them fully dive in the water to hide from predators (捕食者). They love the water, and they can even sleep underwater, with only their noses above the surface.

Like many other rodents, capybaras live in large social groups. What's unusual, however, is how friendly capybaras are with other animal species. The internet is full of images showing smaller animals sitting on capybaras. But despite these giant rodents' social natures and cuteness, they don't make very good pets. They can be territorial(有地盘意识的) with larger animals, and they have been known to bite humans when they feel threatened.

Capybaras continue to lose some of their cuteness when one takes a look at their diet. Their main food is grass, but like many grass-eating animals, they are not able to fully take in their meal the first time it passes through their digestive system(消化系统). So, capybaras frequently eat their own droppings to get additional nutrients from previous meals. There are lots of reasons to love capybaras, but this probably isn't one of them.

Shanghai residents （居民） passing through the city's eastern Huangpu district earlier this month might have discovered an unusual sight a "walking" building.

An 85-year-old primary school has been lifted off the ground in its entirety and relocated using new technology named the "walking" machine.

In the city's latest effort to protect historic structures, engineers used nearly 200 mobile supports under the five-story building, according to Lan Wuji, chief technical supervisor of the project.

The supports act like robotic legs. They're split into two groups which in turns rise up and down, like the human step. The sensors （感应器）help control how the building moves forward, said Lan.

In recent years, China's rapid modernization has seen many historic buildings destroyed to clear land for skyscrapers and office buildings. But there has been growing concern about the architectural heritage （遗产）loss as a result of destruction across the country.

It is true Shanghai has been China's most progressive city when it comes to heritage preservation. The survival of a number of 1930s buildings in the famous bund district and 19th-century "shikumen"（or "stone gate"） houses in the repaired Xintiandi neighborhood has offered examples of how to give old buildings new life.

The city also has a track record of relocating old buildings. In 2018, the city relocated a 90-year-old building in Hongkou district, which was then considered to be Shanghai's most complex relocation project to date.

The Lagena Primary School, which weighs 7, 600 tons, faced a new challenge-it's T-shaped, while previously relocated structures were square or rectangular（长方形的）, according to Xinhua.

Experts and technicians met to discuss possibilities and test a number of different technologies before deciding on the "walking machine", Xinhua said.

On the first day of fourth grade, my teacher, Mrs. Brown, told my class a story about her husband Rob, who is a brain cancer survivor. After what Mrs. Brown experienced with Robs' illness, she decided to devote part of her life to an organization called Be head Strong, which works to support families with a member suffering from brain cancer.

Along with typical math and science, throughout the year, Mrs. Brown shared stories with us about people in Be Head Strong who had overcome some tough and unfair battles. Mrs. Brown never showed any sadness or confusion toward the disease. She instead spoke only with words of determination to find a cure. Whether news from Be Head Strong was good or bad, she always looked at the situation as an opportunity to improve and do more.

My parents taught me from a very young age that making wise choices with my money is important. I would always set aside most of my $ 

2.50-a-week allowance. By the end of the school year, I had saved over one hundred dollars, $ 

131.30 to be exact. One day was wondering what to do with it. I did not feel like any game or toy was worth the time I had spent saving. I thought about the stories Mrs. Brown told us, then I decided that was where I wanted my money to go. 

As the last day of school approached, my mom helped me wrap the heart-shaped box full of dollars and coins. After all the other kids had left on the last day of school, I handed Mrs. Brown the present. As she opened it, I told her that I wanted the money to go to Be Head Strong to help people like Rob. She broke into tears and hugged me tightly.

People may not always realize how big of an influence one kind gesture can make One teacher encouraged a decision in my life that has changed the way how I live.

Freshman year of high school is a big transition (过渡) for any student.

Luckily, you're not the only person going through this, and plenty of others have made the transition before you too.

One of the ways in which high school is different from middle school or junior high the most is the higher expectations. You'll find that you're expected to keep closer track of your own schedule and responsibilities with fewer people checking up on you. At the same time, your classes are likely to become more challenging, and you might be participating in new school activities as well.

Some students find it hard to keep up with everything at first, which is totally normal. One way to prepare in advance: for these higher expectations is to make sure that you have organized schedules in place before you start high school.

Another important skill for meeting these higher expectations is building a strong support network. No matter how strong a student you are, at some point you will need some help. Keeping healthy relationships with your friends and teachers is a great way to make sure that you have people who are willing to help when you need them.

Try to get to, know at least some of your teachers beyond your classroom communication. Be an active learner during class and stay after class to ask questions. Take advantage of email or class messaging systems. The better your teachers know you, the better prepared they'll be to help when you need them.

It's important for you to keep in mind as you start high school that no one is perfect. Transitions are hard for everyone, and starting high school is a big transition. These challenges provide a great chance to reinvent yourself.

Changing your life can come in small, easy steps. You can transform yourself and live a better life by making positive changes along the way. Here are some choices that will lead to your transformation.

Choose to change bad habits

Some bad habits seem to stick around without us even realizing it.. You can overcome them, find better alternatives, and get through your struggle to become a better you! Do it for yourself more than anything.

Choose to grow

It's easy to get stuck in a fixed way of life.. In choosing to grow, you build character, develop your strengths, become aware of what needs improvement, and turn into the well­rounded person you need to be to succeed.

Choose to seek a balanced life

Where do you need balance? Are you all work, no play? Or the opposite? . If you're spending too much time working or locked away alone, find the time for social interaction and having fun. If you haven't committed to a schedule in a while, make the decision to start following one.

This is vital to human existence. We need the loving bonds created by family members and friends. Personal relationships are key to emotional growth and social stability.

Choose to live your passion

Whatever your dream is, you can have it. The person you wish to be and the things you wish to achieve are within you. Make the choice to pursue those passions at whatever cost. It may mean clearing out your schedule or doing something you've never done.. 

A. Choose to spend time with those you love

B. Choose to organize your schedule flexibly

C. Make the choice today that you won't be ruled by them

D. Neither extreme will lead you to a pleasant life for very long

E. However, with re­evaluation and growth comes a beautiful freedom

F. It's good to change, and you've only got so many years to refresh yourself

G. However, the reward from success and personal accomplishment will be worth it

Rich, heavy food is a major part of the end of the year holidays in the United States. People in the U.S. celebrate Thanksgiving on the third Thursday of November. People around the world celebrate Christmas on December 25. Both holidays involve (包含) traditions of cooking very large meals. The food at these meals usually has lots of sugar, salt, and butter in it. Turkey and pie are some of the most common foods in these holidays.

Terri Price has hosted a holiday party on the last Saturday before every Christmas for 30 years. It started when her children were very, very small. She has been preparing many of the dishes for most of the 30 years.

But over time, some traditions do change. The Neveldines are a family who hope to be healthier by changing what they eat. Mick Fury, the Neveldine's oldest child, said this change is important during the holidays and the rest of the year, too.

Mick and his wife, Michelle, try to eat only organic food. Organic food is any plant or animal food product made without the use of unnatural chemicals or processes. But, Mick is not the only Neveldine who changed their diet. Felicia Neveldine, Mick's sister, decided nine years ago to become avegan. A vegan is a person who does not eat or use animal products of any kind.

Felicia became a vegan because of her concern for the treatment of animals and the environmental effects of animal farming. She said that her change in diet also improved her health.

Choosing these special diets means the Neveldines choose their foods carefully. Mick grows a garden behind his house where he gets fresh vegetables.

Holiday traditions may not change, but the way these traditions happen just might.