Why are people interested in eating raw foods or whole foods? One reason is that eating these types of food reduces the risk of acid accumulation in your body.
Raw and whole foods are usually digested more efficiently than cooked and refined foods. When we cook foods, we destroy the natural enzymes (酶) that are part of the food in its raw form. These enzymes were intended by nature to help us digest the food. When we consume food without these natural enzymes, our bodies either digest the food improperly or allow too many nutrients to be absorbed into the bloodstream. In both instances, the result is obesity. When too many nutrients are absorbed at once, the body grows fat. Improperly digested food moves slowly through the digestive tract, where it becomes increasingly acidic. To protect its vital organs from this acidic waste, the body changes the acid into fat and stores it safely away from the organs.
Processed foods contain chemical elements, which might confuse the appetite mechanism (新陈代谢) that tells us when we’ve had enough to eat; as a result, people often overeat. Processed foods also upset the digestive cycle. The body will either identify these foods as allergens and then store them safely away from the organs as fat, or the remains of undigested food will become acidic and enter the bloodstream as acid waste, which will stick to the blood vessel walls and block the passage of vital oxygen and nutrients heading for the body’s cells. The body’s metabolism becomes inactive, and the result is weight gain and obesity.
The accumulation of acid in the digestive tract makes digestion increasingly inefficient. When that happens, even healthy foods can become acidic and the food allergies will become more common.
To stop this vicious（恶性的）circle in its tracks, people need to consume food and supplements that will neutralize (使…中和) the acid already accumulated in body. Eating the right types of raw and whole foods can help. It’s also important to restore your enzyme balance. You need to identify and avoid the foods that cause acid accumulation and consume the foods that increase enzyme production. If you truly want to change and help your body heal itself, you need to take an active approach.What is the main purpose of this passage?
| A．To advocate eating more raw and whole foods. |
| B．To tell the differences between raw and processed foods. |
| C．To inform people of the harm of processed foods. |
| D．To warn people of the problem of obesity. |
It can be inferred from Para. 2 that __________.
| A．it is essential for people to protect their vital organs |
| B．foods with natural enzymes help people keep fit |
| C．we’d better be cautious about raw and whole foods |
| D．giving up cooked and refined foods is a new lifestyle |
Processed foods are unhealthy because they __________.
| A．destroy body’s cells | B．are difficult to digest |
| C．may lead to obesity | D．stop body’s metabolism |
What is likely to be talked about following the last paragraph?
| A．Active approaches to avoid acid. |
| B．Different causes of acid accumulation. |
| C．Correct ways to cook raw foods. |
| D．Suitable types of raw and whole foods. |
What can we learn from the text?
| A．Processed foods are good for our appetite mechanism. |
| B．Eating the right types of raw and whole foods does good to our body. |
| C．The accumulation of acid in the digestive tract makes digestion more effective. |
| D．Processed foods also comfort the digestive tract. |
I knew I was all right now. Nobody else would come ahunting after me. I got my traps out of the canoe and made me a nice camp in the thick woods. I made a tent out of my blankets to put my things under so the rain couldn't get at them. I caught a catfish and towards sundown I started my camp fire and had supper.
When it was dark I sat by my camp fire, feeling pretty satisfied; but by and by it got sort of lonesome, so I went and sat on the bank and listened to the current crashing along, and counted the stars and drift logs and rafts that came down, and then went to bed; there was no better way to put in time when you are lonesome; you can't stay so, and you soon get it over.
And so for three days and nights. No difference—just the same thing. But the next day I went exploring around the island. I was boss of it; it all belonged to me, and I wanted to know all about it; but mainly I wanted to spend the time. I found plenty of strawberries and green summer grapes; and the green blackberries were just beginning to show.
Well, I went fooling along in the deep woods till I judged I wasn't far from the foot of the island. I had my gun along, but I had shot nothing; it was for protection. About this time I almost stepped on a goodsized snake, and it moved quietly and smoothly through the grass and flowers, and I was after it, trying to get a shot at it. I clipped(疾驰) along, and all of a sudden I bounded(跳) right on to the ashes of a camp fire that was still smoking.
My heart jumped up among my lungs. I never waited to look further, but unlocked my gun and went sneaking back on my tiptoes as fast as I could. Every now and then I stopped a second among the thick leaves and listened, but my breath came so hard that I couldn't hear anything else. I moved quietly along another piece further, then listened again; and so on, and so on. If I saw a stump(树桩), I took it for a man; if I stepped on a stick and broke it, it made me feel that a person had cut one of my breaths in two and I only got half, and the short half, too.
There was no time to be fooling around. When getting to the camp, I got all my traps into my canoe again to have them out of sight. I put out the fire and threw the ashes around to look like an old last year's camp, and then climbed a tree.
I suppose I was up for two hours; but I didn’t see or hear anything—I only thought I heard and saw as much as a thousand things. Well, I couldn’t stay up there forever, so at last I got down, but I kept in the thick woods and on the lookout all the time. All I could get to eat was berries and what was left over from breakfast.The underlined part “put in time” in the second paragraph probably means _____.
| A．kill the time | B．take the time |
| C．employ the time | D．waste the time |
Why did the boy always carry his gun with him wherever he went?
| A．To show off his gun. |
| B．To hunt some animals for food. |
| C．To protect himself. |
| D．To play with it for fun. |
How did the boy feel when he saw the ashes of a camp fire that was still smoking?
| A．Surprised. | B．Excited. | C．Frightened. | D．Puzzled. |
Which of the following is TRUE according to the passage?
| A．The boy brought with himself a tent |
| B．The boy felt a bit lonely on the island. |
| C．The boy was surely the only person on the island at that time. |
| D．The boy might be bitten by some animal when the story happened. |
Getting rid of dirt, in the opinion of most people, is a good thing. However, there is nothing fixed about attitudes to dirt.
In the early 16th century, people thought that dirt on the skin was a means to block out disease, as medical opinion had it that washing off dirt with hot water could open up the skin and let ills in. A particular danger was thought to lie in public baths. By 1538, the French king had closed the bath houses in his kingdom. So did the king of England in 1546. Thus began a long time when the rich and the poor in Europe lived with dirt in a friendly way. Henry IV, king of France, was famously dirty. Upon learning that a nobleman had taken a bath, the king ordered that, to avoid the attack of disease, the nobleman should not go out.
Though the belief in the merit of dirt was long-lived, dirt has no longer been regarded as a nice neighbor ever since the 18th century. Scientifically speaking, cleaning away dirt is good to health. Clean water supply and hand washing are practical means of preventing disease. Yet, it seems that standards of cleanliness have moved beyond science since World War II. Advertisements repeatedly sell the idea: clothes need to be whiter than white, cloths ever softer, surfaces to shine. Has the hate for dirt, however, gone too far?
Attitudes to dirt still differ hugely nowadays. Many first-time parents nervously try to warn their children off touching dirt, which might be responsible for the spread of disease. On the contrary, Mary Ruebush, an American immunologist (免疫学家)， encourages children to play in the dirt to build up a strong immune system. And the latter position is gaining some ground.The kings of France and England in the 16th century closed bath houses because________.
| A．they lived healthily in a dirty environment |
| B．they thought bath houses were too dirty to stay in |
| C．they believed disease could be spread in public baths |
| D．they considered bathing as the cause of skin disease |
Which of the following best describes Henry IV’ s attitude to bathing?
| A．Afraid | B．Curious | C．Approving | D．Uninterested |
How does the passage mainly develop?
| A．By providing examples. |
| B．By making comparisons. |
| C．By following the order of time. |
| D．By following the order of importance. |
What is the author’s purpose in writing the passage?
| A．To stress the role of dirt. |
| B．To introduce the history of dirt. |
| C．To call attention to the danger of dirt. |
| D．To present the change of views on dirt. |
The garden city was largely the invention of Ebenezer Howard (1850-1928). After immigrating from England to the USA, and an unsuccessful attempt to make a living as a farmer, he moved to Chicago, where he saw the reconstruction of the city after the disastrous fire of 1871. In those days, it was nicknamed “the Garden City”, almost certainly the source of Howard’s name for his later building plan of towns. Returning to London, Howard developed his design in the 1880s and 1890s, drawing on ideas that were popular at the time, but creating a unique combination of designs.
The nineteenth-century poor city was in many ways a terrible place, dirty and crowded; but it offered economic and social opportunities. At the same time, the British countryside was in fact equally unattractive: though it promised fresh air and nature, it suffered from agricultural depression (萧条) and it offered neither enough work and wages, nor much social life. Howard’s idea was to combine the best of town and country in a new kind of settlement, the garden city. Howard’s idea was that a group of people should set up a company, borrowing money to establish a garden city in the depressed countryside, far enough from existing cities to make sure that the land was bought at the bottom price.
Garden cities would provide a central public open space, radial avenues and connecting industries. They would be surrounded by a much larger area of green belt, also owned by the company, containing not merely farms but also some industrial institutions. As more and more people moved in, the garden city would reach its planned limit--- Howard suggested 32,000 people; then, another would be started a short distance away. Thus, over time, there would develop a vast planned house collection, extending almost without limit; within it, each garden city would offer a wide range of jobs and services, but each would also be connected to the others by a rapid transportation system, thus giving all the economic and social opportunities of a big city.How did Howard get the name for his building plan of garden cities?
| A．Through his observation of the country life. |
| B．Through the combination of different ideas. |
| C．By taking other people’s advice. |
| D．By using the nickname of the reconstructed Chicago. |
According to Howard, garden cities should be built _____.
| A．as far as possible from existing cities. |
| B．in the countryside where the land was cheap. |
| C．in the countryside where agriculture was developed. |
| D．near cities where employment opportunities already existed. |
What can we learn about garden cities from the last paragraph?
| A．Their number would continue to rise. |
| B．Each one would continue to become larger |
| C．People would live and work in the same place. |
| D．Each one would contain a certain type of business. |
What could be the best title for the passage?
| A．City and Countryside |
| B．The Invention of the Garden City |
| C．A New City in Chicago |
| D．A Famous Garden City in England |
Human cloning technology could be used to reserve heart attacks. Scientists believe that they may be able to treat heart attack by cloning their healthy heart cells and injecting them into the areas of the heart that have been damaged, and other problems may be solved if human cloning and its technology are not forbidden.
With cloning, infertile couples could have children. Current treatments for infertility, in terms of percentages, are not very successful. Couples go through physical and emotionally painful procedures for a small chance of having children. Many couples run out of time and money without successfully having children. Human cloning could make it possible for many more infertile couples to have children than ever before.
We should be able to clone the bone marrow（骨髓） for children and adults suffering from leukemia（白血病）. This is expected to be one of the first benefits to come from cloning technology. We may learn how to switch cells on and off through cloning and thus be able to cure cancer.
Cloning technology can be used to test for and perhaps cure gene-related diseases. The above is just a few examples of what human cloning technology can do for mankind. This new technology promises unprecedented （前所未有的）advancement in medicine if people will release their fears and let the benefit begin.What does the underlined word “infertile” (paragraph 2) most probably mean?
| A．with physical and emotional problems |
| B．short of time and money |
| C．unable to give birth to children |
| D．separated from each other for a long time |
According to the text, one of the first expected benefits from cloning technology is in ______.
| A．the treatment of mental diseases |
| B．the reserve of heart diseases |
| C．the cure of gene-related diseases |
| D．the bearing of babies |
According to the writer, the main problem with the development of human cloning technology is that__________.
| A．it has brought about benefits so far |
| B．it may be out of human control |
| C．people still know little about it |
| D．people are afraid of such technology |
What exactly is intelligence? There aren’t any easy answers．Despite the progress that has been made in genetics and psychology, human intelligence has remained one of the most controversial areas of modern science，until now, that is, for the discovery of a gene linked to intelligence has made the experts think again．
Robert Plomin of the Institute of Psychiatry in London and his colleagues in the US have been looking into genetic make-up．From their research, they have discovered that a slightly different gene is more common in those with a high IQ．Plomin analyzed DNA from two groups of 51 children aged between 6 and 15．What he found was that the first group had an IQ of 136, putting them in the top 5% of the population, while the other group had an average IQ of 103．An analysis of their genes showed that 32% of children in the higher group had the gene in question, while only 16% in the second group did．However, there is a lot more research to be done, and Plomin himself is cautious at this early stage．He suggests that there are probably many genes that contribute to intelligence, rather than just one. Several studies have shown a strong link between IQ and career success, although some psychologists remain unconvinced about this．Professor Michael Rowe, who has written a book called Genius Explained, is one of these．“The people with the highest IQs are not usually the ones who do best in their careers．”
Many psychologists now believe that when it comes to intelligence, IQ isn’t everything．Many alternative views have been put forward recently．One example is the idea of multiple intelligences, which was developed in the 1980s by Harvard psychologist Howard Gardner．This offers a much broader view than the IQ theory, including creativity and communication skills as relevant factors in intelligence．
Tony Buzan, brain expert and author of Master your Memory, is enthusiastic about this belief, arguing that true geniuses do indeed appear to combine high levels of each type of intelligence．He lists Alexander the Great, Pablo Picasso and Albert Einstein as examples．At the same time, Buzan believes that everyone can develop their intelligence, only if they take the trouble to exercise their brain．Perhaps there’s hope for us all!What does the underlined word “This” in Paragraph 3 refer to?
| A．The development of intelligence |
| B．The idea of multiple intelligences |
| C．IQ isn’t everything for intelligence |
| D．Alternative views have been put forward |
Why does the author use data in Paragraph 2?
| A．To make a suggestion． | B．To draw a conclusion |
| C．To prove an idea． | D．To give an example |
What can we learn from the passage?
| A．Robert Plomin confirms genes have something in common |
| B．Howard Gardner thinks intelligence includes various factors |
| C．Michael Rowe approves of a strong link between IQ and career |
| D．Tony Buzan agrees geniuses exercise brain to improve intelligence |
What might be the best title of the passage?
| A．The relationship between genes and intelligence |
| B．IQ benefits a lot from high intelligence |
| C．How to develop intelligence． |
| D．What makes intelligence. |