What does an astronaut eat in space? This is a question that will puzzle many, as people rarely think of that. In the early space-travel years, astronauts ate dehydrated (脱水的) foods that were eaten through straws （吸管）. In today’s space-age, the food that they eat is totally different. They eat food in the same way as people do on Earth.
Astronauts are able to prepare and eat a variety of foods in space. Some can be eaten in their natural form, like fruits, while some need to add water, like noodles. However, there are no refrigerators, so the food has to be prepared and eaten without being stored for a long time. When the astronauts are hungry, they simply eat the food by opening the food packages and with a fork, knife, and spoon.
Just like people on Earth, astronauts also eat three meals a day which include breakfast, lunch and dinner. Sometimes they also eat snacks. The US space agency NASA has found out that an astronaut’s diet reduces by about 70% on a space mission, though he has a wide range of foods to choose from like nuts, chicken, beef, seafood, and candies. Drinks in the spaceship include coffee, tea, juices, and lemonade.
Astronauts can also request a particular food that they would like to have in space. Scientists are always experimenting and trying out different space foods that can be offered to astronauts when on space missions.
45. Now astronauts eat ________ in space.
A. dehydrated (脱水的) foods B. food as people do on Earth
C. totally different D. food with a lot of water
46. The food the astronauts prepared ________ .
A. can’t be stored for a long time B. can be put into refrigerators
C. can be stored for a long time D. can’t be kept in the food packages
47. In space, astronauts ________ like people on Earth.
A. only have nuts, chicken and beef B. onlyhave lunch for a day
C. only drink coffee, tea and lemonade D. also eat three meals a day
48. What are scientists experimenting and trying out?
A. Some very special snacks. B. How astronauts can sleep well.
C. Different space foods for astronauts. D. How to get some fruits for astronauts.
Slang is a popular, less official and often very current form of language. It is an important part of a living language and is constantly changing as language changes. Slang is often playful, direct and sometimes less respectful than the more official and traditional version of language. So now I'm going to lay it on you! To “lay it on” is American slang for “to tell” or “to explain.”
Slang can take many forms. For example, slang can be local to one city or area. In Washington, D.C. there is a whole set of slang to describe politics and business in the city. For example, the term POTUS stands for President of the United States. POTUS can often be found with his wife, FLOTUS, the first lady of the United States.“Inside the Beltway” is a popular expression that describes the area of Washington, D.C. The beltway is the large highway that circles the city.
The Internet has helped create a whole new kind of computer-related slang. An “angry fruit salad” is an expression that describes a Web site with too many bright colors. “Netiquette” is slang for correct behavior when using the Internet.
Young people often develop the latest slang. For example, to say Special English “rocks” or is “phat” means Special English is really great. A “kegger” is a party where beer is served. If something is “wack” it is wild and crazy.
Different professions often have their own slang as well. For example, medical workers might refer to a complaining patient as a “gomer”. A "tough stick" is someone whose veins are difficult to find when he or she needs to have blood taken.
No matter how well you speak English, there are always new and interesting slang words to discover. There are entire dictionaries for describing slang. Many experts do not even agree on what is and what is not slang. Often slang words later become a part of officially accepted language. Official or not, slang is an energetic and exciting part of the American language that continues to change.
46. Which of the following is not true for slang compared with the official language?
A. Playful B. Direct C. Less respectful D. More official
47. It can be inferred from the passage that______.
A. if you speak English very well, there is no problem for you to understand English speakers
B. slang words are created by people in their daily life
C. English speakers are clear whether it is a slang
D. slang words will never be accepted as official language
48.Which of the following is not mentioned to have helped create slang?
A. The internet. B. Young people. C. President of the United States. D. Professions
49. Where do you think is the passage adapted from?
A. A radio speech B. A magazine. C. A textbook. D. A newspaper.
50. Which of the following can be the best title of this passage?
A. What is slang? B. Slang is popular. C. Who creates slang? D. Slang is a language.
Alzheimer's disease affects millions of people around the world. American researchers say the disease will affect more than one hundred million people worldwide by the year twenty fifty. That would be four times the current number. Researchers and doctors have been studying Alzheimer's patients for a century. Yet the cause and cure for the mental sickness are still unknown. However, some researchers have made important steps towards understanding it.
Several early signs of the disease involve memory and thought processes. At first, patients have trouble remembering little things. Later, they have trouble remembering more important things, such as the names of their children.
There are also some physical tests that might show who is at risk of developing Alzheimer's disease. The tests look for proteins in brain and spinal cord fluid. The proteins appear to be found only in people with the disease. The protein tests correctly identify the presence of the disease in about ninety percent of patients.
Now, a much simpler physical test to predict Alzheimer's risk has been developed. Researchers found that trouble with the sense of smell can be one of the first signs of Alzheimer's. Using this information, they developed a test in which people were asked to identify twelve familiar smells. These smells included cinnamon, black pepper, chocolate, paint thinner, and smoke.
The study continued for five years. During this period, the same people were asked to take several tests measuring their memory and thought abilities. Fifty percent of those who could not identify at least four of the smells in the first test had trouble with their memory and thinking in the next five years.
Another study has shown a possible way to reduce a person's chances of developing Alzheimer's disease in old age. Researchers in Chicago found that people who use their brains more often are less likely to develop Alzheimer's disease. Those who read a newspaper, or play chess or word games are about three times less likely to develop the condition.
Researchers say they still do not know what causes Alzheimer's disease. But they say these findings might help prevent the disease in the future.
41. What’s the main idea of the passage?
A. Some early signs of the Alzheimer's disease.
B. Some physical tests about Alzheimer's disease.
C. The research about Alzheimer's disease.
D. The patients of Alzheimer's disease.
42. What’s the current number of Alzheimer’s patients?
A. 100 million B. 25 million C. 400 million D. 2050 million
43. What is not the early signs of the Alzheimer's disease according to the passage?
A. Poor memory B. Proteins exist in the brain.
C. Trouble with the sense of smell. D. Less use of the brain.
44. What does the underlined word “it” in paragraph 1 refer to?
A. Alzheimer's disease. B. Alzheimer's patients. C. The cause and cure. D. The research.
45. According to the passage, we can learn that _______.
A. there are no proteins in the brains of the people with no Alzheimer's disease
B. the people who often use their brains will not get Alzheimer's disease
C. researchers and doctors have found ways to cure Alzheimer's disease
D. the people who have the trouble with the sense of smell will certainly suffer from Alzheimer's disease
Greece declared a national state of emergency on Saturday as scores of forest fires that have killed at least 46 people continued to burn out of control, leaving some villages trapped within walls of flames, cut off from firefighters.
Although most of the fires have been on the Peloponnesian Peninsula, some broke out on the outskirts of Athens on Saturday, forcing the evacuation of homes and closing a major road linking the capital to the main airport for several hours. The national fire brigade said that by evening it had brought those blazes under control, including one that came within about six miles of the city.
The country has been vulnerable to fire this summer because of drought and three consecutive heat waves that sent temperatures soaring over 100 degrees. More than 3,000 forest fires have destroyed thousands of acres of wooded areas since June; the earlier fires killed nine people. The latest spate of fires on the peninsula started Friday. Strong, hot winds have spread the flames.
Firefighters expect the death toll to rise, because they have not yet been able to search some areas that had been overrun by flames.
Hardest hit by the fires were a dozen small villages t around the town of Zaharo in the western peninsula, where at least 12 people, including some who may have been trying to flee by car, were killed. Scores of other residents, including elderly and disabled people, remained trapped in their homes, phoning in to local television and radio stations, crying for help.
Late Saturday, Mr. Karamanlis, Prime Minister of Greece appeared on national television and declared that he was mobilizing all of the country’s resources to control the fire. Mr. Karamanlis also suggested that the recent fires might have been purposely set. “So many fires sparked simultaneously in so many regions is no coincidence,” he said, “We will get to the bottom of this and punish those responsible.”
The overstretched national fire services are being helped by an estimated 6,000 soldiers mobilized for the operation. A fleet of water-dumping aircraft was expected from France, Germany and Norway, after Greece appealed to the European Union for “urgent assistance.”
51.The writer mainly wants to tell us that ______ in the passage.
A. firefighters battles fearlessly in Greece to control the fire
B. constant fires in Greece have caused great life and wealth lose
C. Greece is facing great danger as forest fires continue to break out
D. Greek government is investigating the cause of recent forest fires
52. We can know from the passage that ______.
A. Athens, capital of Greece was not threatened in the fire
B. Greek government did not take effective measures to control the fire
C. many people had to leave their homes to avoid fire
D. all people endangered by the fire have already got immediate and proper help
53. According to the passage, which of the following might not contribute to the recent forest fires in Greek?
A. Storm thunders in summer
B. Lack of rainfall
C. Extremely hot weather this summer
D. Hot and strong wind
54. We can learn from the passage that ______.
A. now the fire crisis in Greece has come to an end
B. assistance from EU members is expected to come to help Greece
C. firefighters in Greece so far can still manage the situation
D. the number of people who die in the fire is expected not to rise any more
55. Mr. Karamanlis believes the forest fires in Greece _______.
A. is a happening by chance B. is a natural disaster
C. might be caused by human on purpose D. is a punishment of nature
I used to watch her from my kitchen window. She seemed so small as she muscled her way through the crowd of boys on the playground. The school was across the street from our home and I would often watch the kids as they played during break. I remember the first day I saw her playing basketball. I watched in wonder as she ran circles around the other kids. She managed to shoot jump shots just over their heads and into the net. The boys always tried to stop her but no one could. I began to notice her at other times, basketball in hand, playing alone.
One day I asked her why she practiced so much. Without a moment of hesitation she said, “I want to go to college. The only way I can go is to get a scholarship. I am going to play college basketball. I want to be the best. My Daddy told me if the dream is big enough, the facts don’t count.” Well, I had to give it to her—she was determined. I watched her through those junior high years and into high school. Every week, she led her school team to victory.
One day in her senior year, I saw her sitting in the grass, head in her arms. I walked across the street and sat down in the cool grass beside her. Quietly I asked what was wrong. “Oh, nothing,” came a soft reply, “I am just too short.” The coach told her that at 5’5” she would probably never get to play for a top ranked team—much less offered a scholarship—so she should stop dreaming about college. She was heartbroken and I felt my own throat tighten as I sensed her disappointment. I asked her if she had talked to her dad about it yet. She told me that her father said those coaches were wrong. They just did not understand the power of a dream. He told her that if she truly wanted a scholarship and that nothing could stop her except one thing — her own attitude.
The next year, as she and her team went to the Northern California Championship game, she was offered a scholarship and on the college team. She was going to get the college education that she had dreamed of.The author was probably the girl’s .
| A．neighbor | B．friend | C．mother | D．teacher |
Why was the girl heartbroken?
| A．She was considered too short to be a top player. |
| B．Her coach stopped her training because of her height. |
| C．She couldn’t be on a college basketball team. |
| D．She wouldn’t be admitted by an ideal college. |
We can learn from the passage that .
| A．her family wouldn’t like to pay her college fee |
| B．her father forced her to play basketball in collage |
| C．being a top basketball player can win you a scholarship for college |
| D．she wouldn’t like to turn to his father for help when in difficulty |
Which word can best describe her father?
| A．Encouraging. | B．Optimistic. | C．Stubborn. | D．Cruel. |
Which proverb best matches the story?
| A．Practice makes perfect. | B．Rome was not built in a day. |
| C．Where there is a will, there is a way. | D．Pride comes before a fall. |
For some people, the sight of a mouse can be reason to scream. For other mice, the same sight can be reason to sing.
Mice will probably 21sing their way to any concert, but researchers in the United States have found 22that mice do, 23, sing.
Scientists already knew that mice make ultrasonic(超声波) sounds—noises that are too high-pitched(高音的) for people to hear 24special equipment.
To find out whether mice put such sounds together in song-like 25, the researchers recorded the sounds of 1 mice. Using computer 26, they were able to separate the sounds into specific types of syllables(音节), and found the mice produced about 10 syllables per second.
The results showed that nearly all of the mice repeated sequences(顺序) of syllables in different patterns. That’s enough to meet the definition of what scientists 27song. But not all scientists are 28 _ that what the mice are doing is 29singing. To prove it, the researchers must show that there’s learning involved. And, they need to __ 30why the mice sing.
21. A. almost B. even C. never D. usually
22. A. coincidence B. evidence C. guidance D. instance
23. A. at once B. by means C. for example D. in fact
24. A. during B. inside C. through D. without
25. A. fashions B. instructions C. patterns D. styles
26. A. access B. printer C. screen D. software
27. A. call B. hear C. sing D. write
28. A. accustomed B. convinced C. involved D. qualified
29. A. actually B. obviously C. simply D. unlikely
30. A. figure out B. get about C. run across D. talk over