Sciencecantexplainthepowerofpe

首页 / 高中英语 / 试题详细

更新 2022-09-03
科目英语
题型阅读理解
难度中等
浏览 964

Science can't explain the power of pets, but many studies have shown that the company of pets can help lower blood pressure (血压) and raise chances of recovering from a heart attack, reduce loneliness and spread all-round good cheer.
Any owner will tell you how much joy a pet brings. For some, an animal provides more comfort than a husband or wife. A 2002 study by Karen Allen of the State University of New York measured stress (紧张) levels and blood pressure in people— half of them pet owners —while they performed 5 minutes of mental arithmetic (算术) or held a hand in ice water. Subjects(研究对象) completed the tasks alone, with a husband or wife, a close friend or with a pet. People with pets did it best. Those tested with their animal friends had smaller change in blood pressure and returned most quickly to baseline heart rates. With pets in the room, people also made fewer math mistakes than when doing in front of other companions. It seems people feel more relaxed (放松) around pets, says Allen, who thinks it may be because pets don't judge.
A study reported last fall suggests that having a pet dog not only raises your spirits but may also have a effect on your eating habits. Researchers at Northwestern Memorial Hospital spent a year studying 36 fat people and their equally fat dogs on diet-and-exercise programs; a separate group of 56 people without pets were put on a diet program. On average, people lost about 11 pounds, or 5% of their body weight. Their dogs did even better, losing an average of 12 pounds, more that 15% of their body weight. Dogs owners didn’t lose any more weight than those without dogs but, as some researchers say, they got more exercise indeed.
What does the text mainly discuss?

A．What pets bring to their owners.

B．How pets help people calm down.

C．People's opinions of keeping pets.

D．Pet's value in medical research.

We learn from the text that a person with heart disease has a better chance of getting well if_________.

A．he has a pet companion

B．he has less stress of work

C．he often does mental arithmetic

D．he is taken care of by his family

According to Allen, why did the people do better with pets around when facing difficult tasks?

A．They have lower blood pressure.

B．They become more patient.

C．They are less nervous.

D．They are in higher spirits.

The research mentioned(提到) in the last paragraph reports that________.

A．people with dogs did more exercise

B．dogs lost the same weight as people did

C．dogs liked exercise much more than people did

D．people without dogs found the program unhelpful

登录免费查看答案和解析

相关试题

Blue Collar
Graduates from China's " blue-collar " vocational schools have an employment rate of 95. 6 percent, but many lose their jobs because of unrealistic expectations, according to a senior official with the Ministry of Education(MOE).
MOE figures show a total of 3. 64 million students graduated from vocational schools last year, of whom 3. 48 million found jobs. The employment rate for these students was 95. 6 percent.
"The employment rate for blue-collar workers has stayed high since 1999 and above 90 percent since 2002," Wang Jiping, the MOE's deputy head of vocational education section, said on Wednesday. "However, the figure is not the cause for optimism because it only indicates that people get employed. "
He said many students find jobs, but are unable to stay in the posts for reasons such as overly high expectations for salaries or poor performance.
Wang said vocational school graduates needed more guidance to find jobs that could use their skills and meet "rational" demands for wages (工资), so that they can stay in the posts.
"The government is to set up a national information platform to better show market demand for blue collar talents", he said.
MOE figures show 73. 23 percent of the 3. 64 million graduates from vocational middle schools found jobs in companies and factories, 10 percent started their own businesses, and 16. 37 percent went on to further study.
Wang said the demand for highly skilled workers boosted the development of vocational education. _____________ , the MOE called for vocational schools to set up more market-oriented training courses with which students could easily find jobs.
55. Many vocational school graduates lose their jobs for the following reasons EXCEPT _________according to the text.
A. their high expectations for salaries          B. their poor performance
C. their lack of working experience                  D. their unrealistic expectations
56. The underlined word boosted in the last paragraph can be replaced by _______.
A. improved         B. prevented              C. ended         D. started
57. Among the vocational school graduates last year about ________took up their own business.
A.540,000             B360,000                          C.150,000             D.70,000
58. Which of the following is the best sentence to be put into the blank of the last paragraph?
A. To develop vocational education                   B. To build up graduates' own business
C. To offer graduates more jobs                         D. To meet the demand

题型：未知
难度：未知

收藏答案/解析

Most people think the first pies were made by early Romans. They may have learned about pie making from the Greeks. These pies were sometimes made in"reeds (芦苇叶)", which were used for the purpose of holding the filling (馅 ), and were not eaten.
The Romans spread the word about pies around Europe and the word"pie"became a popular word in the 14th century. The first pie recipe (食谱) was also published by the Romans.
Pies first appeared in England as early as the twelfth century. The early pies were mostly meat pies. There was actually more crust(皮)than filling. Often these pies were made from fowl ( 家禽) and the fowl's legs were left to hang over the side of the dish and used as handles. Fruit pies were probably first made in the 1500s. It is said that Queen Elizabeth I made the first cherry pie.
Pie came to America with the first English settlers. The early settlers cooked their pies in long narrow pans. As in the Roman times, the early American pie crusts were often not eaten, but simply used to hold the filling during baking(烘焙).
Over the years, pie has become what it is today --- "the most traditional American dessert". Pie has become so much a part of American culture that we now often use the phrase "as American as apple pie".
51. Which people might probably first grasp the skill to make pies?
A. The Romans.     B. The Greeks.    C. The Englishmen.    D. The Americans.
52. Which of the following is NOT true about pies?
A. English settlers brought pies to America.
B. Early Romans ate not only pies but also the crusts.
C. The Romans first published pie recipe.
D. The word “pie ” became popular because of the Romans` efforts.
53. What can best show pies have become part of American culture?
A. Americans use long narrow pans to cook pies.
B. People use "as American as apple pie" to show something about American characteristics.
C. Americans don't eat crusts but use them to hold the filling during baking.
D. Pies are the most traditional American dessert.
54. The best title of this passage is "______________".
A . The History of Pies                        B. Pies, the Delicious Food
C. Pies, American Dessert                D. How to Make Pies

题型：未知
难度：未知

收藏答案/解析

Alone in the wilderness. Nothing but jungle. A world of shadow with the rays of light falling like blonde hair from the crowns of the giant trees. Jungle in the midday sun. Everything motionless. Not a sound from sky or earth. Complete silence. Only some coconuts falling, at long intervals, very far away. The world reduced to the soft touch of cool grass along my naked back, and a sweet smell of rich soil and vegetation. Stretched out with closed eyes beside my heavy burden of fruit and firewood, I enjoyed the feeling of fresh blood streaming through every part of my body and fresh jungle air filling every corner of my lungs.
Resting motionless, I could see the sun through my closed eyelids, alone in the sky, as lonely as I, and as motionless and silent as everything else. The earth had surely stopped turning and somewhere on this planet there was supposed to be roaring traffic in busy streets. What a crazy, unbelievable thought!
Another coconut fell, to make the world come to a complete standstill. I had to roll over onto my stomach to feel that at least I could move and make noises. Then I found company. A little brown ant was struggling to find its way with a bit of dry straw through the jungle of leaves and grass below my nose. I wondered if I could give the little fellow a lift with its burden, but it showed not the slightest sign of tiredness and struggled on with all six legs, head first or head last, waving its feelers energetically as if the trip had just started. Who ever saw a tired ant? Tiredness, disagreeable tiredness, is restricted to hunted animals, slaves and modern man. It is as great an effort for an office clerk to walk five blocks with a loaded brief-case as it is for a jungle-dweller to cross a valley with a goat on his back. It is as hard to get up and climb or run when you have been seated for years as it is to get up and walk when you have been in bed for months. The body is strange. Spare it, and you get really tired for almost nothing; use it, and almost nothing makes you really tired.
I rose to my feet. I had heard a horse neighing down in the valley. Above me, on the open highland plains, there were wild horses. But down in the valley there was never a horse unless there was a man on it. Somebody was making his way up the valley and my wife was alone.
71．The author mentions coconuts’ falling to          .
A．show his loneliness                                                           B．add beauty to the jungle
C．express his love of nature                                               D．stress the absolute silence
72.   What’s the right order of the following events?
① I heard a horse neighing down in the valley.
② I went to the jungle.
③ I found an ant carrying a bit of dry straw.
④ I lay on the ground to have a break.
⑤ I picked fruits and chopped firewood.
A. ②③⑤①④                 B. ⑤③②④①                          C. ②⑤④③①                 D. ⑤④③②①
73．How does the author feel about the ant?
A．He admired its attitude toward work.
B．He was amazed at its tireless efforts.
C．He showed sympathy for the little ant.
D．He was content to have it as a companion.
74．It can be inferred from the last paragraph that the author would probably          .
A．work harder than before                                                 B．talk to the man on the horse
C．make his way home                                                          D．stay in the valley
75．We can learn from the passage that the author          .
A．enjoyed being alone                                                          B．experienced a world of quietness
C．missed his busy life in the city                                        D．had an unforgettable adventure

题型：未知
难度：未知

收藏答案/解析

Sports can help you keep fit and get in touch with nature．However, whether you are on the mountains, in the waves, or on the grassland, you should be aware that your sport of choice might have great influence on the environment.
Some sports are resource-hungry．Golf, as you may know, eats up not only large areas of countryside, but also tons of water．Besides, all sorts of chemicals and huge amounts of energy are used to keep its courses (球场) in good condition．This causes major environmental effects．For example, in the dry regions of Portugal and Spain, golf is often held responsible for serious water shortage in some local areas．
There are many environment-friendly sports．Power walking is one of them that you could take up today．You don’t need any special equipment except a good pair of shoes; and you don’t have to worry about resources and your purse．Simple and free, power walking can also keep you fit．If you walk regularly, it will be good for your heart and bones．Experts say that 20 minutes of power walking daily can make you feel less anxious, sleep well and have better weight control.
Whatever sport you take up, you can make it greener by using environment-friendly equipment and buying products made from recycled materials．But the final goal should be “green gyms”．They are better replacements for traditional health clubs and modern sports centers．Members of green gyms play sports outdoors, in the countryside or other open spaces．There is no special requirement for you to start your membership．And best of all, it’s free.
67．The author thinks the golf is resource-hungry because of the following EXCEPT that ________.
A．Golf wastes large areas of countryside
B．Golf runs out of much water
C．Golf is bad for people’s health
D．Keeping golf court in good condition needs too much energy
68．According to the passage, which of the following is an environment-friendly sport?
A．hiking in the hills                                                  B．swimming in the pool
C．playing basketball in the gym                            D．motor racing in the desert
69．The reason why the author uses power walking as an example mainly is that ________.
A．it improves our health                                  B．it is an outdoor sport
C．it is recommended by experts                                                D．it uses fewer resources
70．The passage is developed mainly by ________.
A．examples and explanation                                              B．comparison and persuasion
C．facts and descriptions                                                      D．figures and conclusion

题型：未知
难度：未知

收藏答案/解析

Special trees that grow faster, fight pollution, produce better wood, and even sense chemical attacks are being planted by scientists in the US．
When 40 per cent of Hawaii's US$14 million-a-year papaya （木瓜）industry was destroyed by a virus five years ago, work began on creating genetically engineered（转基因的）trees．
Researchers successfully introduced seeds that were designed to resist the virus．Since then, more and more people have been testing genetically engineered trees．Some researchers put special bacteria into trees to help them grow faster and produce better wood．Others are trying to create trees that can clean polluted soil．Meanwhile fruit farmers are looking for trees that are strong enough to resist worms, and paper companies want trees that produce more wood and therefore more paper．
The Pentagon （五角大楼） even gave the researchers US$500,000 this year after they developed a pine tree that changes its colours if it senses a chemical attack．So far, the poplar, eucalyptus （杨树与桉树）, apple and coffee trees are among those being engineered．All this can be done today because we have a better understanding of tree genomes （基因组）．
However, some people fear that the genetically engineered trees will cause dangerous results．They are worried that the new trees will breed with natural species and change the balance of the forest environment．
“It could be destructive,” said Jim Diamond, an environmentalist. “Trees are what is left of our natural environment and home to many endangered species.”
But researchers insist that science could give nature a fighting chance against both natural and man-made dangers．They hope to answer the critics by stopping the new trees from breeding, so their effect on the environment can be controlled．
63．Which kind of tree is not the ones that scientists are planting in the US?
A．Trees that worms can't hurt．
B．Genetically engineered trees．
C．Trees that can resist wind better．
D．Trees that can protect themselves at a chemical attack．
64．What caused the American scientists to work on special trees?
A．Tree genomes are mapped out so scientists know how to improve trees．
B．Great numbers of trees have been lost due to attacks by viruses．
C．Researchers successfully introduced seeds designed to resist the virus．
D．They think science could give nature a fighting chance against both natural and man-made dangers．
65．Which of the following was probably the first kind of trees being engineered?
A．Papaya． B．Pine． C．Apple． D．Poplar．
66．Why did critics think engineered trees dangerous? Because ________．
A．these trees can destroy the balance of nature
B．everything except trees has been genetically engineered
C．trees are home to many endangered species
D．these trees may affect normal trees

题型：未知
难度：未知

收藏答案/解析