You finish a workout and feel great. Then you get up the next morning and your exercised muscles feel sore. You find it hard to lift your arms and brush your teeth, or bend down to pick up a book. What has happened?
Scientists call this soreness 24 to 48 hours after your exercise “delayed onset (延迟发作) of muscle soreness”, or DOMS. It is caused by microscopic damage to muscle fibers, which releases chemicals. The chemicals irritate (刺激) nerve fibers and cause pain.
Muscle soreness is a good sign. It means that you have challenged your muscles and are getting stronger. Everyone experiences it, even the best athletes. But it can be avoided by using the right exercise methods. Here are some tips:
* Warm up before you work out. This is helpful to avoid muscle soreness, but more importantly to avoid injury. It starts circulation to the muscles and warms the muscles and tendons, getting them ready for exercise.
* Stretch after your workout. After exercising, make sure you stretch your muscles for 15 to 20 seconds before they cool down. They will be warm and elastic (弹性的) so they will stretch well.
* Don’t do too much too soon. Whether it’s jogging, running, whatever workout routine you are starting, just do half of the exercise volume the first week to introduce your muscles to the exercises.
If you are already feeling muscles soreness, here are some ways to help relieve it.
* Get a massage (按摩). Lightly massage the sore muscle and gradually increase the depth of the massage. It might be painful in the beginning but it will gradually ease the muscle soreness.
* Take a hot bath. Nothing beats a long soak in a hot bath for muscle soreness. The heat will increase circulation and provide a soothing (舒缓) effect.
* Flush your muscles. Run hot (as hot as you can bear) water over the sore muscles for two minutes and then immediately switch to cold water for 30 seconds. Repeat this process five times. This has the effect of opening and closing your blood vessels (血管). It will flush the acid (酸物质) from them and ease the soreness.
* Exercise gently. Go for a slow walk and breathe deeply. This helps reduce muscle soreness by increasing blood flow to the sore muscles.
72. What is the purpose of this article?
A. To tell readers to exercise more for fitness.
B. To warn readers of the side effects of exercise.
C. To give readers advice on how to avoid and relieve muscle soreness.
D. To introduce good forms of exercise.
73. The article suggests that before exercise we should ______.
A. stretch our muscles B. have a massage
C. have a hot shower D. warm up our muscles
74. From this article we can conclude that muscle soreness is caused by ______.
A. damaged muscle fibers B. damaged nerve fibers
C. a bad circulation to the muscles D. exercise injuries
75. Judging from the article, which of the following statements is TRUE?
A. Only beginners get muscle soreness.
B. Muscle soreness means you have physical problems and should stop exercising.
C. Muscle soreness is a good sign because it means that the muscles are getting stronger.
D. Muscle soreness can be relieved by increasing the amount of exercise.
Thomas Edison was one of ten said to be the greatest genius of his age. There are only a few men in all of the history, who have changed the lives of other men as much as the inventor of the first useful electric light. But Edison could never be happy only because someone said he was a genius.“ There is no such thing as genius,” Edison said. He said that what people called genius was mostly hard work.
But Edison was a dreamer as well as a worker. From his earliest days as a child he wondered about the secrets of nature. Nature, he often said, is full of secrets. He tried to understand them; then, he tried to learn what could usefully be done with them.
Edison enjoyed thinking. He knew that most people will do almost anything instead of the difficult work of thinking, especially if they do not think very often. But he knew, too, that thinking can give men enjoyment and pleasure.
Edison could not understand how anyone could be uninterested in life. As he loved to think, he also loved to work. On the day he became 75 years old, someone asked him what ideas he had about life. “ Work,” he answered. “Discovering the secrets of nature and using them to make men happier.” He said he had enough inventions in his mind to give him another 100 years of work. Which of the following is NOT true according to the passage?
| A．Edison invented the electric light. |
| B．Many other people have changed Edison’s life. |
| C．Edison has changed the life of many other people. |
| D．Few men in history can change other people’s life. |
Edison thought .
| A．he could be happy if he was a genius |
| B．genius plays the most important part in one’s success |
| C．hard work could do better than genius |
| D．genius could do better than hard work |
Edison was .
| A．very much interested in nature |
| B．interested in discovering the secrets of nature |
| C．interested in changing people’s ideas |
| D．uninterested in making people happier by discovering the secrets of nature |
In Edison’s opinion, .
| A．thinking can supply people with enjoyment and pleasure as well as help |
| B．people’s success lies mostly in genius |
| C．hard work is the second important thing in making people successful |
| D．there are few secrets for him to discover later |
Adults usually do not remember most of the things that are taught by their teachers at school. But this story is one such lesson that I will never forget. Every time I drift off course, I think of this story.
It was a normal Monday morning, and my teacher was teaching us on important things in life and about devoting ourselves to what is important to us. This is how the story went:
An old man lived in a certain part of London, and he would wake up every morning and go to the sub-way. He would get onto the train right to Central Lon-don, and then sit at the street corner and beg. He would do this every single day of his life. He sat at the same street corner and begged for almost 20 years.
His house was dirty, and a stench (恶臭) came out of the house and it smelled terrible. The neighbors could not stand the smell any more, so they called for the police officers to clear the place. The officers knocked down the door and cleaned the house. There were small bags of money all over the house that he had collected over the years.
The police counted the money, and they soon realized that the old man was a millionaire (百万富翁). They waited outside his house expecting to share the good news with him. When the old man arrived home that evening, one of the officers told him that there was no need for him to beg any more as he was a rich man now, a millionaire.
But the old man said nothing at all; he went into his house and locked the door. The next morning he woke up as usual, went to the subway, sat at the street corner and continued to beg.
Clearly, this old man had no great plans, dreams or anything significant (有意义的) for his life. We learn nothing from this story other than staying focused on the things we enjoy doing. The underlined part in the first paragraph may mean ______.
| A．I get tired of learning my subjects | B．I fail to listen to lessons attentively |
| C．I go in the wrong direction of life | D．I wouldn’t like to go to school |
The neighbor called the police because ______.
| A．the old man kept begging money from them every day |
| B．there was something dangerous in the old man’s house |
| C．the old man wouldn’t buy tickets for the train |
| D．they couldn’t bear the smell from the old man’s house |
When the old man knew he was a millionaire, he ______.
| A．remained calm | B．became excited | C．felt worried | D．became nervous |
What lesson do we learn from the story?
| A．Make great plans for your life. | B．Keep on doing what you like. |
| C．Do something that is good to society. | D．Depend on yourself rather than others. |
Young people and older people do not always agree. They sometimes have different ideas about living, working and playing. But in one special program in New York State, adults and teenagers live together in a friendly way.
Each summer 200 teenagers and 50 adults live together for eight weeks as members of a special work group. Everyone works several hours each day. They do so not just to keep busy but to find meaning and fun in work. Some teenagers work in the forests or on the farms near the village. Some learn to make things like tables and chairs and to build houses. The adults teach them these skills.
There are several free hours each day. Weekends are free, too .During the free hours some of the teenagers learn photo-taking or drawing. Others sit around and talk or sing. Each teenager chooses his own way to pass his free time.
When people live together, they should have rules. In this program the teenagers and the adults make the rules together. If someone breaks a rule, the problem goes before the whole group. They talk about it and ask, “Why did it happen? What should we do about it?”
One of the teenagers has said something about it: “You have to stop thinking only about yourself. You learn how to think about the group.” In one special program in New York State, young and older people_________.
| A．don’t work well together |
| B．live together like friends |
| C．teach one another new ways of building houses |
| D．spend eight weeks together, working as farmers |
All the members work some time every day mainly to_______.
| A．lead a busy life |
| B．learn new skills of farming |
| C．get used to the life on the farms |
| D．find useful things and pleasure in work |
Living together__________.
| A．the teenagers don’t have to obey the rules |
| B．the members have to obey the rules the adults make |
| C．the members have no free time but on weekends |
| D．the members should not break the rules they make together |
The last paragraph shows that the teenager thinks this the program is_________.
| A．unpleasant |
| B．tiring |
| C．helpful |
| D．boring |
The best title for the passage is ____________ .
| A．The Rules of Living Together |
| B．Life in New York State |
| C．Teenagers and Adults Together |
| D．Free Hours in the Special Work Group |
As prices and building costs keep rising, “the do-it-yourself”（DIY）trend（趋势） in the US continues to grow.
“We needed furniture for our living room,” says John Kose, “and we didn’t have enough money to buy it.” So we decided to try making a few tables and chairs. John got married six months ago, and like many young people these days, they are struggling （努力）to make a home when the cost of living is very high. The Koses took a 2-week course for $ 280 at a night school. Now they build all their furniture and make repairs around the house.
Jim Hatfield has three boys and his wife died. He has a full-time job at home as well as in a shoe-making factory. Last month, he received a car repair bill for $420. “I was very upset about it. Now I’ve finished a car repair course. I should be able to fix the car myself. ”
John and Jim are not unusual people. Most families in the country are doing everything they can save money so they can fight the high cost of living. If you want to become a “do-it-yourself”, you can go to DIY classes. And for those who don’t have time to take a course, there are books that tell you how to do things yourself.We know from the passage that many people ________ .
| A．seldom go to a department store to buy things |
| B．take DIY courses run by the government |
| C．like to learn to make their own furniture |
| D．find it hard to pay for what they need |
John and his wife went to evening classes to learn how to _______ .
| A．improve the quality of life |
| B．save time and money |
| C．make or repair things |
| D．run a DIY shop |
When the writer says that Jim has a full-time job at home, he means Jim ______.
| A．keeps house and looks after his children |
| B．does his own car and home repairs |
| C．does extra work at night |
| D．make shoes in his home |
Jim Hatfield decided to become a do-it-yourself when ______ .
| A．he had to raise the children all by himself |
| B．he could not possibly do two jobs |
| C．the car repair class was not helpful |
| D．his car repairs cost too much |
How can people learn DIY?
| A．Go to classes. |
| B．Read books. |
| C．Go to classes and read books. |
| D．The passage doesn't tell us. |
“If you want to see a thing well, reach out and touch it!”
That may seem a strange thing to say. But touching things can help you to see them better. Your eyes can tell you that a glass ball is round. But by holding it in your hands, you can feel how smooth and cool the ball is. You can tell how heavy the glass it. When you feel all these about the ball, you really see it.
With your skin, you can feel better. For example, your fingers can tell the difference between two coins in your pockets. You can feel a little drop of water on the back of your hand, too. You can even feel sounds against your skin. Have you wanted to know why some people like very loud music? They must like to feel the sounds of music.
All children soon learn what “Don’t touch!” means. They hear it often. Yet most of us keep on touching things as we grow up. In shops, we touch things we might buy: food, clothes. To see something well, we have to touch it.
The bottom of our feet can feel things, too. You know this when you walk on warm sand, cool grass or a hard floor. All feel different under your feet.
There are ways of learning to see well by feeling. One way is to close your eyes and try to feel everything that is touching your skin. Feel the shoes on your feet, the clothes on your body, the air on your skin. At first, it is not easy to feel these things. You are too used to them.
Most museums are just for looking. But today some museums have things for visitors to touch. Their signs say, “Do touch!” there you can feel everything on show.
If you want to see better, reach out and touch. Then you will really see. By touching things ___________.
| A．you will have a strange feeling |
| B．you will learn how to reach out your hand |
| C．you can see them well |
| D．you can tell what colors they are |
According to the passage, which of the following CANNOT feel things?
| A．Skin. |
| B．Fingers. |
| C．Feet. |
| D．Eyes. |
Why does it say “At first, it is not easy to feel these things?” Because ___________
| A．the things are used by people too |
| B．people feel the things too much |
| C．people know how to use the things |
| D．these things are familiar to you |
You can see the sign "Do touch!"_____________________.
| A．in every museum |
| B．in most museums |
| C．in some museums |
| D．only in one museum |
The best way to see the world well is to ___________________.
| A．touch by feeling |
| B．see or to feel |
| C．read |
| D．see and feel |