C
Apparently，we are safe neither at home nor in the business office．We use water in both places，but the research shows that chemicals added to our local water supply to kill harmful bacteria can have unwanted side effects．These chemicals can cause potential harm through drinking and in seemingly harmless activities as cleaning one’s house．They are released(set free)from water by daily actions like water running out of tap，spraying from garden pipes，or splashing in dishwashers and washing machines．As the water is moving．these chemicals are released into the air and then breathed in. Once inside our bodies, they start to affect our health.
Does this mean we should stop bathing? No, say the scientists, but we should put allpollution into perspective. Activities at home such as the burning of coal, cooking oil, or even candles release carbon monoxide and particulates such as cigarette ashes which have been proven as harmful to health as working or living near heavy traffic. New tugs, bedding, and even clothing give off that“new smell, ”which is a sure sign of chemicals. In the office, newly applied paint, newly purchased telephones and other telecommunications equipment, and computers release polluting chemicals, too. As offices and homes often have inadequate ventilation (通风), these chemicals can build up to become health problems. Their poisonous effects are only now being slowly recognized.
These facts suggest that, at a minimum, proper airing of newly purchased goods with an obvious chemical smell is a wise warning. Home and office windows should be opened during good weather. Even one’s car needs to be ventilated as well while in the garage.
We need further research to understand better other potential health dangers, too. For example, the effects of overcrowding of schools (carbon dioxide build-up ), the factory work environment ( an endless list of potentially dangerous substances ), and even home heating and cooling (the air conditioner may be our enemies, not our friends) have only recently started to come to light. Until we understand the effects of our new technological environment better, we can only hope that“there is no place like home.”
64．What is the main idea of the first paragraph?
A．The air we breathe in is harmful.
B．The water in everyday use is unsafe.
C．Chemicals are added to the drinking water.
D．Chemicals are released in the running water.
65．In Paragraph 2, the underlined sentence means that .
A．bathing should be done with caution
B．homes and offices should be aired often
C．any pollution should be taken into consideration
D．we should prevent any pollution from doing harm to us
66．What is the purpose of the passage?
A．To call on us to guard our water
B．To show us that no place is like home.
C．To make us aware of the pollution around us.
D．To argue that neither homes nor offices are safe.
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 believed disease could be spread in public baths |
| C．they thought bath houses were too dirty to stay in |
| D．they considered bathing as the cause of skin disease |
Which of the following best describes Henry IV’s attitude to bathing?
| A．Approving. | B．Afraid.. |
| C．Curious | 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. |
BEIJING - A research team led by Chinese scientists have discovered dietary modulation of gut microbiota（膳食干预肠道菌群）can alleviate both genetic and simple obesity in children.
The findings of the team, led by Zhao Liping with Shanghai Jiaotong University, Yin Aihua with the Guangdong province children's hospital, and Tang Huiru with Chinese Academy of Sciences, have been published on EBioMedicine, a renowned medical journal co-sponsored by Cell and The Lancet in July.
The team identified bacterial genomes specifically for producing obesity-related metabolites（代谢物）, and said an improved gut microbiota can significantly help to treat genetic obesity such as Prader-Willi Syndrome (PWS).
Beginning in childhood, PWS affected kids develop an insatiable appetite, leading to chronic overeating and obesity.
The scientists used a diet therapy with beneficial gut bacteria on trial patients and found considerable diminished appetite, weight loss and improved health conditions on the patients.
The paper concluded dysbiosis（失调）of gut microbiota is highly related with both genetic and simple obesity in children, implicating dietary modulation of gut microbiota a potentially effective treatment method.Which of the following factors contributes to child obesity ?
| A．dietary modulation of gut microbiota |
| B．beneficial gut bacteria |
| C．an improved gut microbiota |
| D．dysbiosis of gut microbiota |
Which can replace the underlined word “diminished”？
| A．unsatisfied | B．increased |
| C．decreased | D．good |
Where is the passage extracted?
| A．Medicine book | B．Science book |
| C．Doctor’s instructions | D．News report |
Which might be the best title for the passage?
| A．Chinese scientists discover treatment to child obesity. |
| B．The reasons for genetic obesity in children has been found. |
| C．Obesity-related research has been done by Chinese scientists. |
| D．An effective treatment to obesity has been found. |
Visitors worry that London is an expensive city but there really are so many free things to do here. The following ideas should get you started.
All of London's major museums are free, but most offer some special exhibitions for a fee. My favorite is the Museum of Londonwhere you can learn the history of London from Roman times to today. And I love theGeffrye Museumwhich shows English domestic interiors and helps bring to life what it was really like to live in London.
I regularly hear people tell me theQueen Mary's Rose Gardens in Regent's Parkis their favorite spot in London, and who am I to argue? I would also recommend St. James's Park as it offers one of the best views ofBuckingham Palace. Hyde Park is enormous and Kensington Gardens nearby includes the ever popular Diana Memorial Playgroundand thePeter Pan Statue.
No visit to London is complete without seeing this military tradition. The Queen's Guard in London changes in the Forecourt inside the gates ofBuckingham Palaceat 11.30am every day in the summer and every other day in the winter. Get there early and view the spectacle from outside the front gates.
Trafalgar Square is one of Britain's greatest visitor attractions and was designed by John Nash in the 1820s and constructed in the 1830s. This iconic square has many sights to see including Nelson's Columnand theNational Gallery. It is both a tourist attraction and the main focus for political demonstrations. Every December, Norway donates a marvelous Christmas tree, to thank Britain for liberation from the Nazis.Where can visitors find thePeter Pan Statue?
| A．in Regent's Park. | B．in St. James's Park. |
| C．in Hyde Park. | D．in Kensington Gardens. |
Which of the following desrciptions is True ?
| A．In theGeffrye Museumvisitors can learn the history of London from Roman times to today. |
| B．The Queen Mary's Rose Gardens is in Buckingham Palace. |
| C．There is the Queen's Guard change inside the gates ofBuckingham Palaceat 11.30 am every day all year around. |
| D．Trafalgar Square is both a tourist attraction and a place for political demonstrations. |
The writer wrote the passage to ________.
| A．compare some free places in London. |
| B．advertise some free places in London. |
| C．recommend some free places in London. |
| D．expose some free places in London. |
In 1977, Irene Pepperberg of Harvard University began studying what was on another creature’s mind by talking to it. Her first experiments began with Alex. Alex was a one-year-old African grey parrot and Irene taught him to produce the sounds of the English language. “I thought if he learned to communicate, I could ask him questions about how he sees the world.”
At the time, most scientists didn’t believe animals had any thoughts. They thought animals were more like robots but didn’t have the ability to think or feel. Of course, if you own a pet, you probably disagree. But it is the job of a scientist to prove this and nowadays more scientists accept that animals can think for themselves.
“That’s why I started my studies with Alex,” Irene said, “Some people actually called me crazy for trying this.”
Nowadays, we have more and more evidence that animals have all sorts of mental abilities. Sheep can recognize faces. Chimpanzees (黑猩猩) use a variety of tools and even use weapons to hunt. And Alex, the parrot became a very good talker.
Thirty years after, the Alex studies began. Irene was still giving him English lessons until his recent death. For example, if Alex was hungry, he could say “want grape”. Alex could count to six and was learning the sounds for seven and eight. “He has to hear the words over and over before he can correctly say them.” Irene said, after pronouncing “seven” for Alex a few times in a row. Alex could also tell the difference between colors, shapes, sizes, and materials (e.g.wood and metal). Before he finally died, Alex managed to say “seven”.
Another famous pet that proved some animals have greater mental skills was a dog called Rico. He appeared on a German TV game show in 2011. Rico knew the names of 200 different toys and easily learned the names of new ones. When Rico became famous, many other dog owners wanted to show how clever their pets were. Another dog called Betsy could understand 300 words.
One theory for dogs’ ability to learn a language is that they have been close companions to humans for many centuries and so their ability to understand us is constantly evolving (进化). While animals can’t do what humans do yet, some scientists believe that examples like Alex and Rico prove that evolution develops intelligence, as well as physical appearance. Irene wanted to find out __________.
| A．what a parrot thinks | B．why a parrot can speak |
| C．how parrots make sounds | D．if parrots speak English |
Alex learnt new words by __________.
| A．singing them | B．reading them |
| C．writing them | D．rehearing them |
The two dogs mentioned in the article could _______.
| A．understand some words |
| B．recognize strange voices |
| C．copy human gestures |
| D．tell different colors |
The article concludes that ___________.
| A．our pets understand what we say |
| B．dogs may speak to humans one day |
| C．humans are related to chimpanzees |
| D．mental ability can evolve in animals |
Elizabeth Mitchell’s new “Liberty’s Torch” is the fascinating story of how the Statue of Liberty came to be. The Statue of Liberty’s rough history is explored in “Liberty’s Torch”.
Frederic Auguste Bartholdi is an all-but-forgotten figure in American history. He was, however, responsible for one of the most enduring symbols of the United States: the Statue of Liberty. A Frenchman from Alsace, he designed and built the Statue of Liberty which stood on Bedloe’s Island in New York Harbor. How this statue came to be is the fascinating subject of Elizabeth Michell’s new book “Liberty’s Torch”.
The power of Mitchell’s narrative is convincing(令人信服的). We recognize the Statue of Liberty now as a symbol of hope and opportunity for a nation of immigrants. At the time, though, people could not see that－nor did they even imagine that. Instead, the construction of the statue was born of one man’s desire to set up a great monument.
For this reason, perhaps, “Liberty’s Torch” relies on Bartholdi as the connecting thread. Bartholdi went to Egypt to make photographic copies of the main monuments. On the boat, Bartholdi met and began a lifelong relationship with Ferdinand de Lesseps, the man who would build the Suez Canal. Maybe it was this friendship, or maybe it was seeing Egypt’s huge monuments, but finally the trip inspired Bartholdi’s dream to create the largest statue ever built. Failure to bring this to completion in Egypt, followed by his exile (流放) from Paris, led Bartholdi to sail to America.
By explaining the Statue of Liberty’s hard history and showing Bartholdi’s brave spirit, Mitchell has done a great service.It can be inferred from the text that ________.
| A．American people have never forgotten Frederic August Bartholdi |
| B．the Statue of Liberty wasn’t originally regarded as a symbol of hope |
| C．Bartholdi finished the Suez Canal |
| D．Bartholdi was a famous architect from Egypt. |
What was the main reason for Bartholdi to build the Statue of Liberty?
| A．To finish his education in the arts. |
| B．To mark his friendship with Ferdinand. |
| C．To create something better than Egyptian monuments. |
| D．To achieve his dream to create the largest statue. |
What type of writing is the passage?
| A．A travel guide. | B．A book review |
| C．An announcement | D．An architecture report. |