D
Far from the land of Antarctica(南极洲), a huge shelf of ice meets the ocean. At the underside of the shelf there lives a small fish, the Antarctic cod.
For forty years scientists have been curious about that fish. How does it live where most fish would freeze to death? It must have some secret. The Antarctic is not a comfortable place to work and research has been slow. Now it seems we have an answer.
Research was begun by cutting holes in the ice and catching the fish. Scientists studied the fish’s blood and measured its freezing point.
The fish were taken from seawater that had a temperature of -1.88℃ and many tiny pieces of ice floating in it. The blood of the fish did not begin to freeze until its temperature was lowered to -2.05℃. That small difference is enough for the fish to live at the freezing temperature of the ice-salt mixture.
The scientists’ next research job was clear: Find out what in the fish’s blood kept it from freezing. Their search led to some really strange thing made up of a protein(蛋白质) never before seen in the blood of a fish. When it was removed, the blood froze at seawater temperature. When it was put back, the blood again had its antifreeze quality and a lowered freezing point.
Study showed that it is an unusual kind of protein. It has many small sugar molecules(分子) held in special positions within each big protein molecule. Because of its sugar content, it is called a glycoprotein. So it has come to be called the antifreeze fish glycoprotein, or AFGP.
68. What is the text mainly about?
A. The terrible conditions in the Antarctic.
B. A special fish living in freezing waters.
C. The ice shelf around Antarctica.
D. Protection of the Antarctic cod.
69. Why can the Antarctic cod live at the freezing temperature?
A. The seawater has a temperature of -1.88℃.
B. It loves to live in the ice-salt mixture.
C. A special protein keeps it from freezing.
D. Its blood has a temperature lower than -2.05℃.
70. What does the underlined word “it” in Paragraph 5 refer to?
A. A type of ice-salt mixture. B. A newly found protein.
C. Fish blood. D. Sugar molecule.
71. What does “glycol-” in the underlined word “glycoprotein” in the last paragraph mean?
A. sugar B. ice C. blood D. Molecule
BRISBANE—Australian Olympic chief John Coates has said Greek athlete Katerina Thanou should not be awarded the Sydney Olympics 100 metres gold medal handed back by Marion Jones.
Jones, who this week admitted to steroid（类固醇）use in the build up to the Sydney Games, has returned the three gold medals and two bronzes she won in 2000.
But Thanou, the silver medalist in Sydney, was herself banned for two years after she failed to appear for a drug test at the 2004 Athens Olympics.
“I’d like to think that Katerina Thanou would not be awarded the gold medal,” Coates told the Australian Associated Press on Tuesday, “but there may be some legal difficulties for the International Olympic Committee (IOC) to overcome in order to reach that conclusion.”
Jamaica’s Tayna Lawrence won the 100m bronze medal in Sydney behind Jones and Thanou.
Coates also said he expected the United States Olympic Committee (USOC) to hand back the medals won by the women's 4x100m and 4x400m relay teams.
Two of Jones’s team mates in the 4x100m team which finished third in Sydney, Torri Edwards and Chryste Gaines, have also served doping（兴奋剂）bans.
The U.S. women’s 4x100m relay team won the gold medal ahead of Jamaica and Russia.
“On the relays, it’s my expectation that the United States Olympic Committee will be required to also hand back the medals won by the other ladies who competed with Jones in the two relays,” Coates said.
“That is normal practice.”
The United States Olympic Committee (USCO) has publicly apologized to the organizers and competitors of the 2000 Sydney Games and the Australian public for Jones’s actions.
As part of the USOC’s apology, president Peter Ueberroth promised that the U.S. would send a clean team to next year’s Beijing Olympics.
1. What is the best title of the passage?
A. Jones has returned the Sydney medals
B. Thanou should not receive Sydney gold
C. Steroid use at Sydney Olympics
D. The U.S would send a clean team to Beijing Olympics.
2. Thanou should not get the Sydney gold medal because________.
A. she didn’t pass the drug test.
B. she served doping ban at Sydney Olympics.
C. she didn’t take the drug test at Sydney Olympics.
D. she ran second at Sydney Olympics.
3. Which of the following statements is True?
A. Jones has got five gold medals at Sydney Olympics.
B. The USCO has returned medals in the two relays.
C. Thanou should receive Sydney gold medal.
D. Jones also took part in the women’s 4x100m relay race.
4. Why did Coates expect the USOC to hand back the medals won in the relay races?
A. Because the IOC required them to do so.
B. Because they didn’t take the first place in the relay races.
C. Because some of the runners of the U.S served doping bans.
D. Because they felt sorry for Jones’s actions.
5. What would probably happen next according to the passage?
A. Thanou would receive Sydney gold.
B. Jamaica’s Tayna Lawrence would receive Sydney gold.
C. Thanou wouldn’t be allowed to take part in the Beijing Olympics.
D. Fewer or no American athletes will serve doping drugs in Beijing Olympics.
Marie Curie was a Polish physicist and chemist who lived between 1867-1934. Together with her husband, Pierre, she discovered two new elements (radium and polonium, two radioactive elements that they extracted chemically from pitchblende ore) and studied the x-rays they emitted. She found that the harmful properties of x-rays were able to kill tumors. By the end of World War I, Marie Curie was probably the most famous woman in the world. She had made a conscious decision, however, not to patent methods of processing radium or its medical applications.
Marie Curie was born November 7, 1867 in Poland and died on July 4, 1934. Her co-discovery with her husband Pierre Curie of the radioactive elements radium and polonium represents one of the best known stories in modern science for which they were recognized in 1901 with the Nobel Prize in Physics. In 1911, Marie Curie was honored with a second Nobel prize, this time in chemistry, to honor her for successfully isolating pure radium and determining radium's atomic weight.
As a child, Marie Curie amazed people with her great memory. She learned to read when she was only four years old. Her father was a professor of science and the instruments that he kept in a glass case fascinated Marie. She dreamed of becoming a scientist, but that would not be easy. Her family became very poor, and at the age of 18, Marie became a governess. She helped pay for her sister to study in Paris. Later, her sister helped Marie with her education. In 1891, Marie attended the Sorbonne University in Paris where she met and married Pierre Curie, a well-known physicist.
Marie Curie contributed greatly to our understanding of radioactivity and the effects of x-rays. She received two Nobel prizes for her brilliant work, but died of leukemia, caused by her repeated exposure to radioactive material.
What is the main idea of the passage?
To give us a general introduction to Madame Curie.
To show us how Madame Curie discovered radium.
To tell us how Madame Curie developed as a scientist.
To tell us how Madame Curie received two Nobel Prizes.
Madame Curie was given the Nobel Prize in chemistry because_________.
she discovered radium
she separated pure radium and calculated its atomic weight
she discovered polonium
she didn’t patent methods of processing radium
Which of the following statements about Madame Curie is Not True?
Madame Curie made great contributions to medical science.
Madame Curie was very smart and ambitious when she was a child.
Madame Curie received two Nobel Prizes in physics.
Madame Curie’s husband helped her a lot in her research.
4. We can infer from the third paragraph that_________.
①Madame Curie got married when she was at college.
②Madam Curie had a great ambition when she was young.
③Madame Curie loved teaching more than anything else.
④Madam Curie must have met a lot of difficulties to get high education.
⑤Her father had a great influence on Madam Curie’s future career.
⑥Madam Curie was very smart when she was a child
A. ①②④⑤⑥ B.②④⑤⑥ C. ②③④⑤⑥ D. ①②③④⑤
5. Which is the right order about Madam Curie according to the passage?
a. married Pierre b. attended University c. discovered radium
d. determined radium’s atomic weight e. won the Nobel Prize in physics
A. b, c, a, d, e B. b, a, c, d, e C. b, a, c, e, d D. b, c, a, e, d
Arts and culture is lived and breathed in every corner of Canada. Due to a racial and immigrant （移民）population the variety and richness of art and sports is very evident.
Since the Second World War, Canada has produced an impressive amount of writing. From novels to poetry, the selection is wide. Native writers are also becoming better known across Canada in recent years.
Musicians are reaching a higher level of recognition in the world music scene. Everything from Country to Pop, Classical to Heavy Rock can be found across Canada and across the globe performed by Canadian artists.
Film Crew in Canada The National Film Board is the primary producer of movies in Canada. However, many Hollywood studios are turning to Canada as a source for locations and as an alternative to the more expensive USA. Many well known actors, directors, screen writers and movies come from Canada and often scoop awards for their work.
French art was the first to appear in Canada along the St Lawrence in and around Quebec. Since then the volume of art and artists has increased. Canadian photography as well as painting by Canadians are not well known outside of Canada but recognition is increasing.
Sport is a major part of today's society in Canada. Hockey is the most popular spectator sport with more participants taking part in curling. American style football and baseball are also very popular and all of these sports are played across Canada.
1. What would be the best title of the passage?
A. A brief introduction to Canada B. Canadian arts, culture and sports
C. Canadian artists D. Canadian arts and culture are world famous
2. Canada has many forms of art and culture because it has ________.
A. a long history B. a large area
C. a large population D. a variety of nations and immigrants
3. Many Hollywood studios come to settle in Canada because_______.
A. The cost in Canada is lower than that in the USA.
B. Canada has many well known actors and directors.
C. They want to work together with the movie producers in Canada.
D. They want to make movies about Canada.
4. Which group of Canadian artists are well known all over the world today?
A. Native writers and screen writers B. Photographers and actors
C. Painters and writers D. Musicians and actors, directors
5. Which of the statements about Canada is Wrong?
A. Canadian Arts has been much influenced by French people.
B. Canadian people love sports very much.
C. There are many big film-making companies in Canada.
D. Canadian Arts and artists are becoming better known.
Any diet on which you eat fewer calories than you need to get through the day — like an 800-calorie-per-day diet can be dangerous. Diets that don't allow any fat also can be bad for you. Everyone needs a certain amount of fat in their diet — up to 30% of total calories — so no one should eat a completely fat-free diet.
Don't have diets that restrict （限制）certain food groups, either. A diet that requires you to say no to bread or pasta or allows you to eat only fruit is unhealthy. You won't get the vitamins and minerals you need. And although you may lose weight, you'll probably gain it back as soon as you start eating normally again.
Some people start dieting because they think all the problems in their lives are because of weight. Others have an area of their lives that they can't control, like an alcoholic parent, so they focus on something they can control — their exercise and food intake.
People who diet may get lots of praise from friends and family when they start losing pounds, which makes them feel good. But eventually a person reaches a weight level — and doesn't lose as much weight as before because the body is trying to keep a healthy weight, so they aren't any happier.
Some people may find it hard to control their eating, so they stick with an extreme diet for a little while, but then eat tons of food. Feeling guilty about the binge, they use laxatives（泻药）. Eating too little to maintain a healthy weight or eating only to throw up the calories are both eating disorders, which are harmful to a person's health.
1. Which is not the result of restricting certain food groups?
A. lose weight for a short periodB. unhealthy
C. short of nutrition D. hungry
2. The reasons why some people start and keep dieting DON’T include__________.
A. They think their trouble comes from their weight.
B. They have an alcoholic parent.
C. Other people’s praise when they lose some weight.
D. There is something they can’t control except food intake.
3. The underlined phrase in the last paragraph refers to _________.
A. a fat-free diet B. a special diet
C. eating too muchD. eating too little
4. Which of the following statements is true?
A. A person needs about 800 calories each day.
B. A person who doesn’t eat bread is unhealthy.
C. An improper diet may cause eating disorder.
D. Fat takes up the most part of calories inside body.
5. According to the passage, when people want to lose weight, they should_________.
A. avoid eating some food that can lead to being fat B. control their eating amount and times
C. have a healthy and balanced diet D. throw up some of what they eat
Together. 35 years.
Alvin Ailey American Dance Theater
They make you sway. With a dance form all their own. Originating as an intimate, innovative dance company, it has evolved into an international force. Taking the spirit of African—American culture and translating it into dance and community programs for more than 35 years. A heritage of bringing together a repertoire of Ailey classics and great dance masterpieces along with exciting new works by emerging artists. Modern Vibrant. Athletic. Colorful. Involving. Because it is dance in step with the people. Part of the neighborhood, their pulse beats—beats—beats of life. Lifting spirits. Able to leap tall buildings in a single bound. Pirouetting the globe. Soaring, moving as one, moving dance into the future. Join Philip Morris in its 12th year of supporting Alvin Ailey American Dance Theater. And celebrate the achievement of the Ailey past as they boldly step forward.
9. What does the advertisement ask people to do?
A. To see a play. B. To watch a match.
C. To ball there. D. To see Philip Morris.
10. How is the company?
A. Modern and involving. B. Intimate and innovative.
C. Athletic and colorful. D. Vibrant and innovative.
11. What does Alvin Ailey American Dance Theater hold this activity for?
A. To develop the spirit of African—American culture.
B. To leap tall buildings in a single bound.
C. To pirouette the globe.
D. To celebrate the achievement of the Ailey past.