27 world records were broken during the 2016 Summer Olympics. They fell in swimming running weightlifting and a number of other sports. But how do athletes continue to get better, jump longer, run or swim faster? Although scientists say that athletes have reached their limits (极限), records continue to fall. In almost every sport, athletes have become better since the Olympic Games begin.

    One reason is that and more people than ever before have access to sports and exercise. They start at an earlier age and can compete longer in their sport. In schools more and more natural talents can be discovered.

    Besides, athletes can train full-time instead of training after works. As medicine improves, athletes can stay in competition for a longer time and overcome injuries (损伤) faster. Many top athletes achieve their best results later on in their careers. Technology has also helped improve scores.

    One of the most important reasons, however, is the human mind. We always want to be better and faster that someone else. It can release (释放) great power in our body.

    So, where are limits? One of the most difficult questions to answer is how fast a human being can run. Many years ago, nobody thought a person could ever run within 10 seconds in the 100-metre race. But the record was broken at the 1968 Mexico City Olympics. A t the moment Sustain Bolt is the fastest man on Earth at 9.58 seconds. Scientists say that 9.48 may be the limit, but, who knows, maybe some runners will one day run within 9 seconds.

    There are millions of different animals in the world, but some are in danger, and some may soon die out. People can never see them again. Mark and David wanted to find some of these rare animals, so they climbed mountains, crossed rivers, and walked through rainforests.

    A Bat, a Cat or a Squirrel?

    Mark and David found the aye-aye. The aye-aye has bright eyes. It has ears like a bat, a body like a cat and a tail(尾巴) like a squirrel. Some people think the aye-aye brings bad luck. They killed(杀死) many of them, and cut down a lot of trees where the aye-aye lives as well.

    A Strange Parrot

    Mark and David found the biggest parrot in the world that cannot fly. Many years ago, some animals came to the place the parrots lived in, and killed many of them. Now there are only a few left.

    Another Special Animal

    Mark and David went looking for a manatee. A manatee looks like a seal and a hippo. In some places where manatees live, the water in the river gets low. Then the manatee swims to the place where there is more water. Many get stranded(搁浅), and some are killed by other animals and people, too.

    After Mark and David returned, they made a film about these animals. They want to show the world these strange but interesting animals. They want the world to know there are not many of them left, and they all have a place in our world.

When something is troubling us, it's natural to try and make it go away. We might head to the doctor or make a trip to the local drug store for medicine. Unluckily these methods can be expensive and it takes time.

But have no fear, because you might be able to come up with useful home remedies (治疗方法)with nothing more than a few simple ingredients from your house.

At one time or another, it seems everyone comes down with the flu. Along with taking it easy and getting plenty of rest, you can tur to chicken soup to make you feel better. Mothers from around the world have been making it for thousands of years for sick relatives. The hot soup warms you up and its pleasant smell helps to clear up your nose. It's often prepared with onions, carrots ... which all provide vitamins.

Nothing drives people mad quite like getting the hiccups (打嗝). In some cases, nothing seems to drive them away. Next time you've got a bad case of the hiccups, try this sweet solution. Take a full teaspoon with sugar and swallow it down. The sugar is thought to get your throat muscle (肌肉) to relax. Just don't overdo it, or you might have to take a trip to the dentist.

Headaches are another trouble. If you get one, try putting a pencil in between your teeth. A major cause of headaches is stress, and when we're worried, we often tighten our jaws (咬紧牙关), which pulls a muscle that connects to our head, and this action causes the pain, By placing a pencil in our mouths, we are giving our minds a signal to relax our jaws. This can reduce (减轻) the headaches almost immediately, But just remember not to bite(咬) it hard.

Who do you think is the greatest English writer of all time? I think that person should be William Shakespeare. His popular sayings, like "To be or not to be, that is a question", and his stories such as the tragedy(悲剧), Romance of Romeo and Juliet, are almost known in every corner of the world.

In 1594, William Shakespeare became a key playwright(剧作家) of a popular acting company in the city. Whether comedies or tragedies, Shakespeare's plays catch people's hearts with the complicated(复杂的) characters and plots(情节) that show truths about human nature.

His comedies are always full of romance, and they always have happy endings. That's why people enjoy his comedies a lot. His tragedies, however, can be very dark, Macbeth tells the story about a Scottish man who becomes the king by killing all his enemies(敌人).

Shakespeare's works have had a big influence(影响) on the English language. He was a master(大师) of words. He created about 1,700 English words, including everyday ones like "lonely", "hurry" and "critical", according to the New YorkPost.

Of course, Shakespeare wrote 400 years ago and his English was very different from that of today. His plays have been translated into many languages and are acted more often than any other playwright. There are over 400 films and TV dramas adapted(改编) from his works. Shakespeare is not for an age, but for all time.

When you are too sick or tired to eat, would you enjoy a bowl of ramen? It wouldn't matter how good the ramen is any more-you wouldn't enjoy it anyway. 

If the boss decides to give you another bowl of the world's best ramen and lets you invite someone to eat for free. But you do not have any loved ones to invite-not even a close friend. Your feelings of loneliness will make the ramen tasteless as well. 

Ramen is like the expensive things that many of us think we want in life. Nice cars, expensive houses and beautiful clothes. They are nice to have, but we shouldn't forget that the most important things in life are our health and our loved ones. We must first take good care of our health and our loved ones before we worry about having nice things. 

Being rich is not always about having more money; it can also come from the heart. Having a rich heart is about finding inner (内心的) peace. Once you have made it, you will be thankful for what you have and be less worried about what you don't have. Or all the riches in the world will not be able to fill your heart. 

The next time you are enjoying a bowl of delicious ramen with a loved one or a close friend, think about how lucky you are. When life brings you difficult problems and challenges, remember that these same people are there for you to help you get past difficult times.