Space is a dangerous place, not only because of meteors (流星 ) but also because of rays from the sun and other stars. The atmosphere again acts as our protective blanket on earth. Light gets through, and this is essential for plants to make the food which we eat. Heat, too, makes our environment endurable(可忍受的). Various kinds of rays come through the air from outer space, but enormous quantities of radiation(辐射) from the sun are screened off. As soon as men leave the atmosphere they are exposed to this radiation but their spacesuits or the walls of their spacecraft, if they are inside, do prevent a lot of radiation damage.
Radiation is the greatest known danger to explorers in space. The unit of radiation is called "rem". Scientists have reason to think that a man can put up with far more radiation than 0.1 rem without being damaged; the figure of 60 rems has been agreed on. The trouble is that it is extremely difficult to be sure about radiation damage - a person may feel perfectly well, but the cells of his or her sex organs may be damaged, and this will no be discovered until the birth of abnormal children or even grandchildren.
Missions of the Apollo flights have had to cross belts of high amount of rems. So far, no dangerous amounts of radiation have been reported, but the Apollo missions have been quite short. We simply do not know yet how men are going to get on when they spend weeks and months outside the protection of the atmosphere, working in a space laboratory. Drugs might help to decrease the damage done by radiation, but no really effective ones have been found so far.
1. According to the first paragraph, the atmosphere is essential to man in that ____.
A. it protects him against the harmful rays from space
B. it provides sufficient light for plant growth
C. it supplies the heat necessary for human survival
D. it screens off the falling meteors
2. We know from the passage that ____.
A. exposure to even tiny amounts of radiation is deadly
B. the effect of exposure to radiation is slow in coming
C. radiation is avoidable in space exploration
D. astronauts in spacesuits needn't worry about radiation damage
3. The harm radiation has done to the Apollo crew members ____
A. is significant B. seems overestimated
C. is enormous D. remains unknown
4. It can be inferred from the passage that ____.
A. the Apollo mission was very successful
B. protection from space radiation is no easy job
C. astronauts will have deformed children or grandchildren
D. radiation is not a threat to well-protected space explorers
45. The best title for this passage would be ____.
A. The Atmosphere and Our Environment B. Research on Radiation
C. Effects of Space Radiation D. Importance of Protection Against Radiation
David Beckham was born in 1975, in London, at a place called Leytonstone. When he was a young boy , his greatest passion was football. He played it whenever he had the chance. Sometimes he would go and watch a game with his friends. When David Beckham was 12 years old, he won the Bobby Charlton Soccer Skills award (奖金). This was an important step forward for this young boy, and it led him to go for a visit to a football training camp in Spain. As a boy he played for the schools of Essex and also for his county team.
In 1991, he became a trainee with Manchester United. This meant that he could practice football as much as he wanted to and play for the highly successful Manchester United Youth Cup team and Under-21 team. In April, 1995, he played his first football league game against Leeds United. During 1996, David became a regular member of the team and Manchester United won in both football seasons, with David scoring many goals.
His goals made him a household name. In the first game of the 1996—1997 season, he scored an surprising goal from beyond the halfway line; seeing the goalkeeper a little way out of his goal, Beckham sent the ball over the goalkeeper’s head and into the goal. It was a wonderful goal and Beckham became famous overnight. He continued to score astonishing goals, especially from free—kicks. The speed of one of his shots was timed at 157 kph. He also had the ability to make the ball go from left to right, or right to left, whenever he chose. Goalkeepers were never sure where the ball was going, and it regularly ended up in the goal. David Beckham won his first prize for football skills
A.in 1975 | B.in 1987 | C.in 1991 | D.in 1996 |
Which word can take the place of the underlined word “passion” in paragraph 1?
A.skill | B.prize | C.success | D.interest |
The unusually surprising way that he scored goals
A.made him popular in many British homes | B.helped him to gain many prizes for Essex |
C.kept him playing for Leeds United | D.offered him the chance to join the national team |
Which of the following shows the right order of what happened to Beckham?
a. Beckham played his first football league game.
b. Beckham won the Bobby Charlton Soccer Skills award.
c. Beckham played for Manchester United Youth Cup team.
d. Beckham went to Spain to join a football training camp.
e. Beckham played for the schools of Essex.
A.e, b, a, d, c | B.e, d, a, c, b | C.b, d, e, c, a | D.b, e, d, a, c |
The passage is mainly talking about
A.when Beckham became famous all over Britain |
B.how Beckham became a successful football player |
C.why Beckham could win in football league games |
D.what abilities Beckham had to score so many goals |
Moods, say the experts, are feelings that tend to become fixed, influencing one’s outlook for hours, days or even weeks. That’s great if your mood is a pleasant one, but a problem if you are sad, anxious, angry or simply lonely.
Perhaps the best way to deal with such moods is to talk them out; sometimes, though, there is no one to listen. Modern pharmacology(药理学)offers a lot of tranquilizers(镇静剂)What many people don’t realize, however, is that scientists have discovered the effectiveness of several non-drug methods to set you loose from an unwanted mood. These can be just as useful as drugs, and have the added benefit of being nonpoisonous. So next time you feel out of sorts, don’t head for the drug-store but try the following methods.
Of all the mood-altering self-help techniques, aerobic exercise seems to be the most efficient cure for a bad mood. “If you could keep up the exercise, you’d be in high spirits, ” says Kathryn Lance, author of Running for Health and Beauty.
Researchers have explained biochemical and various other changes that make exercise compare favourably to drugs as a mood raiser. Physical exertion such as housework, however, does little. The key is aerobic exercise—running, cycling, walking, swimming or other repetitive and sustained activities that increase the heart rate, increase blood circulation and improve the body’s use of oxygen. Do some of the activities for at least 20 minutes a session three to five times a week.What is the main subject discussed in the passage?
A.How to beat a bad mood. | B.How to talk bad moods out. |
C.How to do physical exercises. | D.How to join in aerobic exercises. |
According to the passage, all of the statements are true EXCEPT that
A.climbing is an efficient cure for a bad mood |
B.moods can have a bad effect on people’s health |
C.aerobic exercise can help people get rid of bad moods |
D.pharmacology has provided people with many tranquilizers |
“Feel out of sorts” in paragraph 2 could best be replaced by “”
A.put things in order | B.are in high spirits |
C.are in a bad mood | D.search for tranquilizers |
It can be inferred from the passage that
A.some drugs are more effective than physical exercises |
B.a person does not need aerobic exercise if he is in a good mood |
C.the best way to overcome a bad mood is to talk to oneself |
D.when in a bad mood, one may not work very efficiently |
Our sense of smell, which we normally take for granted, is nowadays being increasingly used for purposes which might surprise us if we realized them.
One area in which smells are created to achieve particular results is marketing. For some time producers have taken advantage of our sense of smell with regard to household goods.
When pleasant smells are passed through a store’s air conditioning system, people tend to spend more time in the store and buy more. For example, the smell of chocolate is used in sweet stores, while the smell of leather and perfume are used in clothes stores.
In a test, people looked at the same types of shoes in two rooms—one filled with purified air, the other with a smell of mixed flowers. Eighty-four percent of the people preferred the shoes in the room with the smell of flowers. In fact, many said they would have paid up to US $ 10 more for a pair.
Smells also have other uses. Research has shown that certain smells can help to calm anxious people and increase their feeling of safety. Smells such as that of flowers and pine forests might therefore be used to relax patients in doctors’ and dentists’ waiting rooms, and to make the environment more pleasant and less stressful to them.
Some companies are experimenting with different smells to produce different efferent effects on their workers according to the time of day.
For example, early in the morning they might put the smell of lemon in the air conditioning system to wake people up. In the middle of the morning, when the atmosphere tends to become more tense, the smell of wood could be used to calm people down. Before lunchtime the smell of melting butter would encourage people to go to lunch on time. After lunch, when people often begin to lose attention, the smell of mint would increase their watchfulness.
While some of these uses of smells may e helpful and effective, not everyone would agree with their use to control customers in stores. It has been suggested by consumers’ organizations that one way to avoid this new subconscious(无意识)pressure to buy is to go shopping when people are less likely to be influenced by smells.We can conclude from the text that
A.smells are widely used in different shops | B.different smells can keep people feel happy |
C.smells are effective if used in suitable cases | D.hospitals take advantages of the sense of smell |
What kind of smell is effective when the students are having a lesson according to the text? Butter. B. Leather C. Wood D. Mint
The 4th paragraph proves that
A.pleasant smells attract people’s attention to stores |
B.people prefer the shoes with the smell of different flowers |
C.right smells increase people’s view of the value of a product |
D.people want to pay more money because of good smells |
What does the underlined word “them” in paragraph 5 refer to?
A.patients | B.doctors | C.smells | D.waiting rooms |
Everywhere you will always find “the white—haired boy”, sometimes called “the fair-haired boy” He gets special treatment, as if he were above everybody else. You will find him in school, in college, at home, or where you work.
In school, he is the teacher’s pet, her darling who can do nothing wrong. Sometimes she lets him do little jobs for her. He comes to class in the morning, all shiny and clean, He is always raising his hand, ready with an answer to the teacher’s questions. And he knows all the answers. He “gets into your hair”, especially if you are at the bottom of the class and the teacher thinks you are stupid. How you hate the white-haired boy!
In college, he walks—more often strides—across the school grounds as if he owned them. Sometimes he wears a colorful football or basketball shirt or sweater, with a bright red, or green or yellow college letter proudly worn on the front of it—as a big B, for Bullfinch University. What broad shoulders, what muscles he has! He makes the girls happy by just smiling at them. He has the mark of success on him.
At home, “the fair-haired boy” is mother’s choice, her favorite. Sometimes, he is the oldest son—at times, the youngest. If you are in between, you are out of luck.
On the job, you might meet another of these “white-haired boys”; you cannot escape him. For some strange reason, he is the man who always moves ahead. He gets better and better jobs, with more and more money. But you stand still, wondering why, and trying to explain to your-self why you hate him so much.
Then, you discover that there are others who share your feelings, ready to “let their hair down” —to tell you their private thoughts. One of them asks: “What does he have that I haven’t got?” You ask yourself the same question.
Finally, there comes a day when you decide to stop hating him. Is it perhaps because he has been made boss and you find yourself working for him?From the passage we can know that “the white-haired boy” refers to
A.a child who is mother’s favorite | B.a student who is hated by everybody |
C.a pet who is hated by everybody | D.a person who is lucky all the time |
What does the underlined sentence in paragraph 2 mean?
A.He sets a shining example to you | B.He makes you a little angry. |
C.He cuts your hair too short. | D.He does up your hair. |
In the author’s opinion, the reason why you finally stop hating the white-haired boy is that
A.you have no choice but to face the facts | B.you decide to try your best to be better than him |
C.you have been made boss by him | D.you are beginning to admire him |
Which of the following is the best title for the passage?
A.Try to Be Attractive | B.Let Your Hair Down |
C.The White-haired Boy | D.The Top Student |
What’s the purpose of the advertisement?
A.To introduce some wild animals to visitors. |
B.To invite visitors to walk in the wildlife park. |
C.To attract visitors to get close to the sea animals. |
D.To provide seafood for visitors to feed the sea animals. |
If a parent who is the member of the Aquarium is going to have the Trainer Tour with her child of ten, how much does she have to pay?
A.$ 175 | B.$ 140 | C.$ 35 | D.$ 31 |
Which of the following is true according to the advertisement?
A.The programs are changeable. |
B.There is no danger to a small child. |
C.You can phone 604—659—FISH to book the programs. |
D.Bigger groups of visitors are encouraged to save money. |