Unlike chemists and physicists, who usually do their experiments using machines, biologists and medical researchers have to use living things like rats. But there are three Nobel prize-winning scientists who actually chose to experiment on themselves – all in the name of science, reported The Telegraph.
1. Werner Forssmann (Nobel prize winner in 1956)
Forssmann was a German scientist. He studied how to put a pipe inside the heart to measure the pressure inside and decide whether a patient needs surgery.
Experiments had been done on horses before, so he wanted to try with human patients. But it was not permitted because the experiment was considered too dangerous.
Not giving up, Forssmann decided to experiment on himself. He anaesthetized (麻醉) his own arm and made a cut, putting the pipe 30 centimeters into his vein. He then climbed two floors to the X-ray room before pushing the pipe all the way into his heart.
2. Barry Marshall (Nobel prize winner in 2005)
Most doctors in the mid-20th century believed that gastritis was down to stress, spicy food or an unusually large amount of stomach acid. But in 1979 an Australian scientist named Robin Warren found that the disease might be related to a bacteria called Helicobacter pylori.
So he teamed up with his colleague, Barry Marshall, to continue the study. When their request to experiment on patients was denied, Marshall bravely drank some of the bacteria. Five days later, he lost his appetite and soon was vomiting each morning – he indeed had gastritis.
3. Ralph Steinman (Nobel prize winner in 2011)
This Canadian scientist discovered a new type of immune system cell called the dendritic cell. He believed that it had the ability to fight against cancer.
Steinman knew he couldn’t yet use his method to treat patients. So in 2007, when doctors told him that he had cancer and that it was unlikely for him to live longer than a year, he saw an opportunity.
With the help of his colleagues, he gave himself three different vaccines based on his research and a total of eight experimental therapies. Even though Steinman eventually died from his cancer, he lived four and a half years, much longer than doctors had said he would.What’s the main purpose of the article?
| A．To introduce a few Nobel prize winners who did experiments on themselves. |
| B．To list difficulties that scientists went through in order to make important discoveries. |
| C．To explain why some scientists chose to experiment on themselves. |
| D．To introduce some dangerous experiments that Nobel prize winners did on themselves. |
Which of the following is TRUE according to the article?
| A．Forssmann’s experiment ended in failure. |
| B．Forssmann had the pipe pushed all the way into his heart. |
| C．Barry Marshall succeeded by drinking some Helicobacter pylori. |
| D．Barry Marshall’s experiment on himself confirmed that most doctors’ belief about gastritis |
was correct.The underlined word “gastritis” in Paragraph 5 probably means ______.
| A．a kind of bacteria |
| B．a kind of stomach disease |
| C．a new type of therapy |
| D．a large amount of stomach acid |
From the text, we can conclude that Ralph Steinman ______.
| A．discovered a new type of cancer cell called the dendritic cell |
| B．tried different therapies containing the dendritic cell on himself |
| C．had his request to experiment on patients denied |
| D．believed that he was better than doctors at treating cancer |
How often do you change your hairstyle or ask for new dresses? You may try to follow trends in Western countries，but your peers(同龄人)in the United States don't care as much about fashion(时尚)as you do．
A recent survey among high school students in China，Japan，South Korea and the US found that Asian teenagers care more about their looks than young people in the US．
This survey was held in 156 high schools in the four countries. More than 7,000 teenagers were questioned about their view on life and the world.
South Koreans, at 83 percent, cared most about their appearance. They were followed by the Chinese and Japanese while US students showed the least interest in fashion at only 33 percent.
“The different results show differences of cultural background,” said Sun Yunxiao from the China Youth and Children Research Centre.
He explained that in the US there are many different standards of beauty, so teens are more likely to be confident about their appearance.
US teenagers’ high self-confidence is showed in survey. About 85 percent are happy with themselves. The percentage of self-confident Chinese students stands at only 30 percent.
Strong ambition( 雄心) is seen in Chinese high schools. Only two in five high school students are satisfied with “an average living”. Koreans are next at 48 percent，Japanese come in at 66 percent and Americans are at 71．
“According to the survey，Chinese students are happy. But Chinese students need to be more independent and learn how to relax．”said Sun．According to the survey，_________ cared little about their appearance．
| A．the Chinese teenagers |
| B．the American teenagers． |
| C．the Korean teenagers |
| D．the Japanese teenagers |
Sun Yunxiao’s words means ___________.
| A．the different standards of beauty cause the different attitudes toward fashion |
| B．the Chinese teens should have a stronger desire to make a difference． |
| C．the Chinese students are satisfied with the society most |
| D．the Chinese students agree that they should follow their own interests rather than those of others |
The underlined word “standards’’ in the sixth paragraph means __________.
| A．rules | B．backgrounds | C．values | D．interests |
From the 8th paragraph we may 1earn that __________．
| A．Asian teenagers care more about their looks than young people in the US |
| B．US students showed the most individuality(个性)among the four countries |
| C．Chinese students need to be more independent and learn how to relax |
| D．American students have the least ambition among the four countries |
What does the passage mainly talk about?
| A．A survey about the attitudes towards the fashion． |
| B．How Asian teenagers care more about their looks than young people in the US． |
| C．Why Chinese students are happy． |
| D．Why Chinese students should be more independent and learn how to relax |
Many famous museums throughout the world can offer you good chances to admire art. Washington, D.C has the National Gallery of Art，Paris has the Louver, London, the British Museum. Florida International University(FIU) in Miami also shows art for people to see. And it does so without a building, or even a wall for its drawings and paintings.
FIU has opened what it says is the first computer art museum in the United States. You don’t have to visit the University to see the art. What you need is just a computer linked to a telephone. That’s enough.
You can call the telephone number of a University computer and connect your own computer to it. All of the art is stored in the school computer. It is computer art, produced electronically by artists on their own computers. In only a few minutes, your computer can receive and copy all the pictures and drawings.
Robert Shostak is director of the new computer museum. He says he started the museum because computer artists had no place to show their work.
A computer artist could only record his pictures electronically and send the records, or floppy discs, to others to see on their computers. He could also put his pictures on paper. But to print good pictures on paper, the computer artist will have to need a very expensive laser printer.
Robert Shostak says the electronic museum is mostly for art or computer students at schools and universities. Many of the pictures in the museum are made by students. Mr Shostak said the FIU museum will make computer art more fun for computer artists because more people can see it. He says artists enjoy their work much more if they have an audience. And the great number of home computers in America could mean a huge audience for the electronic museum.The main purpose of this text is to give information about____________.
| A．famous museums throughout the world |
| B．an electronic art museum in Miami, U.S.A |
| C．art exhibitions in Florida International University |
| D．the latest development in computer art in the USA |
To see the art in FIU museum, which of the following should you have at first?
| A．some records or floppy discs |
| B．a computer and a printer |
| C．your own pictures and drawings |
| D．a computer connected by telephone line |
_________ are stored in the electronic museum in FIU.
| A．Paintings drawn by computer |
| B．Different styles of paintings |
| C．Some very traditional paintings |
| D．Drawings done by students of FIU |
The museum was started when ___________.
| A．FIU wanted to encourage computer scientists |
| B．Robert Shostak decided to help computer artists |
| C．art students needed a place to show their works |
| D．computer scientists wanted to do something about art |
The words “an audience” in the last paragraph refers to ___________.
| A．art students |
| B．computer owners |
| C．exhibits in the museum |
| D．those who will enjoy art |
What kind of sports impressed you most during your childhood? Maybe racing around the playground or skipping rope for hours would bring you pleasure. At that time you weren’t thinking of fitness, you were just thinking of entertainment. But in this age of high-tech home equipment and underused gym memberships, the simple joy of jumping rope has been forgotten. I think rediscovering it probably will give you a total-body exercise.
Although considered an excellent form of exercise, jumping rope has never received widespread acceptance because of two reasons. First,most people recognize jumping rope as an excellent form of cardiovascular (心血管的) exercise, but they also believe that it is simply too difficult. In other words, they don’t think they’ll be able to continue jumping for the near 20 minutes in order to achieve a beneficial physical effect. Second, many regard it as somewhat boring and overly repetitive —not as something fun or enjoyable.
As a matter of fact, jumping rope can be great fun as long as you find a proper way to practise it. Instead of doing the usual two-foot bounce(跳) over and over again, players good at rope-jumping often change their pattern every 10 or 20 jumps. A single bounce, a double –bounce , a skip, a knee-up, side swings , as well as a variety of other easy-to-learn free-style rope-jumping .
Nowadays researchers are discovering that jumping rope also prepares the brain for learning . It is an exercise allowing both brain hemispheres（半球）to perform equallyto each other . In short, jumping rope can be a life-long activity requiring little equipment, time and space , yet leading to a much healthier life.The main purpose of the first paragraph is to tell us that .
| A．people would rather have exercise in a gym than do sports outside |
| B．there seems to be too much advanced equipment for people to use |
| C．racing around the playground was regarded as children’s favorite sport |
| D．jumping rope has escaped from people’s memories in modern society |
One reason that can explain why rope jumping has not spread widely is that_____.
| A．it benefits the cardiovascular system |
| B．it is too difficult for people to learn to jump |
| C．it is believed to be boring and repetitive |
| D．it requires little equipment, time and space |
The first sentence in Paragraph 3 implies thatin rope jumping .
| A．there is only one proper way to follow |
| B．the usual way should not be used again |
| C．the easiest way is always the best one |
| D．there are different kinds of ways to follow |
According to the researchers , jumping rope .
| A．only prepares the brain for learning |
| B．is suitable for students only |
| C．helps both brain hemispheres work together |
| D．can be dangerous for old people |
What is the author’s attitude towards rope jumping ?
| A．He strongly argues against it. |
| B．He is in favour of it. |
| C．He is sitting on the fence of it . |
| D．He knows little about it . |
You probably know you should say "please" and "thank you" at restaurants. You probably know the rules of a library. You know you should respect and be nice to your classmates. But do you have music manners?
Keep It Down! You have to notice the volume of your music. You should not play your music so loud that everyone around you can hear it. Some people might even get angry. Usually, when you play the music loud on an MP3 player, other people can't hear the words of the song. They just hear a loud sound. No one wants to listen to this. Very loud music can also be bad for your ears. So even if you are alone when listening to your MP3 players, you shouldn't turn it up too high.
Take Them Off! You need to know when to turn your MP3 off and put it away. Libraries, and schools don't allow MP3 players. There are other places, like museums, that don't have rules, but it would be rude to have your MP3 player on. Sometimes, it doesn't make sense to listen on your MP3 player at event. Why would you listen to music at a play, a movie or a sporting event? You would miss what is going on and others would wonder why you even came.
Take One Out! Once in a while it's okay just to take out one earphone and not the other. Imagine you are listening on your MP3 player when someone asks you the way. It would not be rude to take out one earphone, tell him the way, and put back the earphone and continue listening. You can also do this when you order food at a fast-food restaurant or when you answer the telephone
It's Your Choice! There are times when you need to decide what is best. For example, some people can listen to music on their MP3 players when reading books, while others think it is disturbing. In cases like this, you need to do what seems right for you.The underlined word "volume" in Paragraph 2 probably means "_________."
| A．the type of music |
| B．the length of a song |
| C．the amount of a sound |
| D．the color of an MP3 player |
We should turn down the music when we are alone because loud music_________.
| A．may annoy others |
| B．can hurt our ears |
| C．is bad for MP3 players |
| D．will make us tired |
If we listen to our MP3 player at a play, _________.
| A．the theatre won't allow it |
| B．the actors will get angry |
| C．others won't hear the play well |
| D．we may miss part of the play |
We can take one earphone out when we _________.
| A．show others the way |
| B．enjoy a movie at the cinema |
| C．watch a sporting event |
| D．answer the telephone at museums |
The main idea of this passage is about _________.
| A．MP3 manners |
| B．music lovers |
| C．music players |
| D．MP3 earphones |
Are you interested in travelling in the dangerous mountains in America? Here are some tour plans for you to choose.
Tour 1 Garland Valley
Bring your drink and lunch for this walk in a beautiful area of the Blue Mountains. Garland Valley is close to the town of Garland but is part of the National Park. Many wild animals live in this area, including many rare birds. This is a great walk for bird-lovers. The trip lasts four hours. Book in advance. Cost: $ 15 When: May 8, May 15
Tour 2 Flashlight Adventure
Put on your warm clothes, bring a flashligh and a pair of glasses, and come for a night walk along the Dungog Valley. A guide will lead the tour. Many of the animals you will see on this trip can only be seen at night. The guide will tell you about the lives of the animals you see. Numbers are strictly controlled on night trips, so be sure to book early. This walk lasts two and a half hours.
Cost: $ 12 When: May 8, May 15, May22
Tour 3 Black Bear Count
There have been fires in this area in the last few years and the Office of the National Park is not sure how many black bears are still living. Some bears have been seen since the fires, and the Office has asked for young people to help count them. The entire trip will last three hours. Remember to book in advance.
Cost: Free When: May 8
Advice to be followed:
☆ Please bring enough water and food for all walks.
☆ Wear good walking shoes-no high heels.
☆ Wear a hat for day walks.
☆ Dress warmly for night walks.
☆ Children must be with an adult.
☆ Make sure your flashlight works well and bring extra batteries for night walks.
☆ Follow all instructions from guides during the walks. The mountains are so
dangerous that you have to care.Where are these tours likely to take place?
| A．In a modern noisy city. |
| B．In a special kind of zoo |
| C．In a park in the mountains. |
| D．In three different countries. |
On which tours had you better wear a hat according to advice?
| A．Tour 1 |
| B．Tour 2 |
| C．Tour 2&3 |
| D．Tour 1& 3 |
On which trip are you likely to see animals that are active at night but may sleep during the day?
| A．Flashlight Adventure |
| B．Garland Valley. |
| C．Black Bear Count |
| D．None of the trips. |
Which of the following statements is TRUE?
| A．Extra batteries are needed for Tour 1 & 3. |
| B．All three tours require booking in advance. |
| C．It’s clearly advised to wear a hat for Tour 2. |
| D．Tour 3 will take the longest hours to finish. |
What is the best title for the passage?
| A．Some Adventure Tours in America |
| B．Hunting around the Great Mountains |
| C．Interesting Tours in Different Parks |
| D．Discovery Tours in the Mountains |