Ronald Hoffman born in 1937 is Polish-born American organic chemist and Nobel laureate(桂冠). As a theoretical chemist, Hoffmann studied energy levels in chemical bonds during chemical reactions. He put computers to use to solve his problems and, despite the complexity of his research, was able to explain his theories and discoveries to the non-specialist. For his work he was awarded the 1981 Nobel Prize in chemistry, which he shared with Fukui Kenichi.
Born in Poland, Hoffmann settled in New York City as a child and became a United States citizen. He received his undergraduate degree in premedical studies from Columbia College in 1958. He attended Harvard University, where he received his PhD. degree in chemical physics in 1962. He joined the faculty of Cornell University in the mid-1960s and remained there throughout his career.
Hoffmann and Nobel laureate chemist Robert Burns Woodward developed rules, based on quantum mechanics, to determine how energy levels in atomic electron orbits influence how a chemical reaction takes place. These simple rules, known as the Woodward-Hoffmann rules, allowed chemists to predict reaction results and was quickly accepted and put to use in a wide variety of situations.
Hoffmann later turned his research to a variety of problems related to discovering the molecular structure of inorganic and organometallic compounds. Hoffmann is also known for what is called the Isolobal Analogy, which is yet another discovery linking all areas of chemistry. It is useful in predicting the behavior of new molecules based on the orbit structure of the components used to form them.
Aided by computers, Hoffmann was able to generate a vast amount of data to support his ideas. Unlike the scientific papers of many chemists, Hoffmann's publications contain little raw data but instead are filled with diagrams and pictures to explain his results. His drawings of shaded balloons to indicate eigenvectors, a unit used in mathematics, are now the accepted scientific notation for illustrating this value.
What can be inferred from the above passage about Hoffman?
| A．He left his homeland when he got the Nobel Prize. |
| B．He went to the United States to gain his Nobel Prize. |
| C．He might find the Unites States a better place to learn chemistry. |
| D．His family may have settled in the United States. |
How did Hoffman make his research popular?
| A．He applied some computer skills to help explain his ideas. |
| B．He established a special computer system to help. |
| C．He drew some forms explaining his ideas. |
| D．He did series of experiments to prove his ideas. |
The underlined word “generate” in this passage might most probably mean “______”.
A. bring in B. break down
B. move away D. keep secret
Why was Ronald Hoffman awarded the 1981 Nobel Prize for chemistry?
| A．He established rules to predict chemical reactions . |
| B．He succeeded applying computer science to chemistry research. |
| C．He shared what he had achieved with another scientist named Fukui Kenichi. |
| D．He succeeded in both chemistry and computer researches. |
Educating Girls Is a Real Lifesaver
Clare Short knows it. Every developing economist knows it. The World Bank knows it. The education of girls is the surest way to reduce poverty.
The reason is simple. All the evidence shows that taking girls out of the fields and homes, and putting them behind desks, raises economic productivity, lowers infant and maternal(产妇) death rates, reduces birth rates, and improves environmental management.
Why, then, are 90 million primary school-age girls around the world not in school? For the same reason that when Charles Dickens was writing David Copperfield 150 years ago girls were absent from the British education system: Men in power mostly prefer it that way, or are not interested enough in changing the situation to commit energy and money to doing so.
The countries with the poorest record for having women in positions of power or influence have the worst figures for girls’ education. High-profile intervention(介入) by organizations such as the World Bank has begun successfully with several countries, and more of the same will probably be needed to bring change in conservative, male-run states.
Even if there were no development payoff from gender equality in schools, the education of girls would still be a cause worth fighting for. Education is a human right, and the denial of it to girls is a scar on the community in the twenty-first century.
To be born a girl in a rural area in Nepal, Pakistan, Indonesia, Morocco, Togo, or Sudan — half a dozen of the most shameful performers — means being condemned to a life without school, education, or clean water, marriage and babies coming too early, too many births, children who die of preventable diseases, backbreaking work in the fields, subordination(从属) to husband and his family, and an early death.
Every year, almost 12 million children under the age of five needlessly die of infectious diseases associated with poverty. But each additional year spent by their mothers in primary school lowers the risk of premature child deaths by about 8 percent. In Pakistan, an extra year of school for 1,000 girls could prevent sixty infant deaths.
With women and girls being the main farmers in Africa and southern Asia, their education offers a chance to develop more efficient farming practices, improve output, and raise awareness of the ecological needs of the land with tree planting and farming. Therefore, the world community cannot afford to ignore this avenue of change.Which is Not the reason why educating girls reduces poverty?
| A．It improves environmental management. |
| B．It raises economic productivity. |
| C．It creates more children. |
| D．It lowers maternal death rates. |
What does the underlined word “it” in Paragraph 3 refer to?
| A．The poor economy at that time. |
| B．Girls’ absence from school. |
| C．Energy and money. |
| D．The education of girls. |
Which of the following is TRUE according to the passage?
| A．The countries where women have great influence and are in power always do worse in girls’ education. |
| B．Some organizations such as the World Bank haven’t taken the lead in girls’ education. |
| C．Some girls in Sudan and Indonesia are bound to live a life without education when they are born. |
| D．Each extra year of school for girls has nothing to do with the birthrate and maternal deaths. |
How many more infants will survive when 100 girls stay in school for another year?
| A．5 | B．6 | C．8 | D．12 |
What does the author think of girls’ education?
| A．essential | B．terrible |
| C．indifferent | D．helpless |
Beer and fried chicken — Thanks to a South Korean drama currently on air, Man From the Stars, this new mix-and-match junk food trend has become popular among young audiences, despite its unhealthy nature. Indeed, South Korean TV dramas, or K-drama for short, have been a major force in the South Korean pop-culture wave that has captured the hearts of young Chinese audiences. According to iQiyi, a video website that features Man From the Stars, by Feb 15, the number of views for the TV drama hit 370 million in China.
“It is interesting to explore what elements of those dramas appeal to audiences. It’s obviously more than just pretty faces,” says Yan Feng, a professor of Chinese literature at Fudan University. Reflected by audiences, culture critics and insiders of the industry, youth fantasy, creative storylines, cultural proximity in East Asia, and well-organized production all add up to K-drama’s success, along with, of course, those handsome and cute faces dressed in the latest fashion trends.
“Everyone fancies a perfect partner, handsome or beautiful,” says Zhou Ying, a professor at Chongqing Technology and Business University. “The South Korean TV industry is feeding this need.” After Lee Min-ho appeared on CCTV’s annual Spring Festival gala, he became the most famous South Korean in China. Only weeks later, Kim Soo-hyun, lead actor in Man From the Stars, swept the country. Apart from pretty faces, fashion is another highlight of the series. Each time actors from the series wear a new set of outfits, similar clothes experience a sales boom online, according to Xiao Yi, a Taobao store owner.
As is known, with love triangles, incurable diseases, and Cinderella tales, storylines in South Korean dramas may seem a bit commonplace. While The Man From the Stars challenges this by putting aliens and time travel into these existing stories, Peng Sanyuan, a screenwriter, says a focus on detail is a key factor in the success of these dramas. “In order to accurately target audiences and find emotional reflections with them, more and more female writers are working in the industry,” says Peng about her experience of exchanging ideas with South Korean colleagues. According to the experts, South Korean writers somehow make sense of these plots, no matter how unlikely it seems.Why has beer and fried chicken become so popular among Chinese young people at present?
| A．Because the food tastes very great. |
| B．Because they want to change the trend. |
| C．Because the food is good for their health. |
| D．Because they are deeply affected by the Korean TV drama. |
What makes Man From the Stars different from other K-dramas according to the last paragraph?
| A．Female writers | B．Creative stories |
| C．Pretty faces | D．Fashionable clothes |
Not long ago, few little girls imagined they could grow up to be astronauts. In 1983, that changed. Sally Ride made history by becoming the first American woman to travel into space.
Ride died at the age of 61. “Sally was a national hero and a powerful role model,” President Barack Obama said in a statement.
Ride became interested in space when she was a kid. “If you asked me when I was 12 whether I wanted to be an astronaut, I’m sure I would have said yes,” she told TFK in a 2010 interview. “But I didn’t even think about that as a possible career.”
After studying physics in college and graduate school, Ride got her chance. She was accepted into NASA’s astronaut training program in 1978, and then chosen to be the first American female in space. In 1983, she blasted into space aboard the Challenger shuttle. “There is no amusement park ride on Earth that even comes close. It can’t be more wonderful,” she said.
Ride returned to space on the Challenger a second time in 1984. In the two missions, she spent a total of 343 hours in orbit. After that, she remained involved with the space program and also worked to share her passion for space with kids. She wrote five science books about space for children, and started her own science education company.
Ride knew that she held a unique place in history. “I realized how important it was for a woman to break that barrier and open the door for other women to be able to do the same exciting things that men had been doing,” she said.
Since Ride’s historic trip, more than 40 other American women have traveled to space. They all had Ride to thank for opening the door to the final frontier.
Which of the following is true?
| A．Sally was the first person to travel to space in America. |
| B．Sally wanted to be an astronaut even when she was a pupil. |
| C．Sally was interested in space, so she chose astronautics as her major. |
| D．Sally graduated from college and first traveled to space in 1983. |
From the fifth paragraph, we know that Sally .
| A．was good at doing business |
| B．wanted to be rich by doing business |
| C．became a famous writer at last |
| D．had a lasting interest in space |
What can we infer from the text?
| A．Sally inspired many American women to travel to space. |
| B．Sally made great contributions to American economic development. |
| C．Women astronauts used to be looked down upon in American history. |
| D．The government did not allow women to become astronauts in the past. |
We know that cigarette smoking kills． So, producers made electronic cigarettes as a safer smoking choice - safer than tobacco． Although e-cigarettes contain the drug nicotine like cigarettes, they do not use tobacco and you do not light them． They are powered by battery （电池）．
However, if e-cigarettes are so safe, why has the United States Center for Disease Control（CDC） seen an increase in telephone calls about e-cigarette poisonings?
The answer is children． Most of the calls are from people worried about children who have played with the devices, In the period of one month this year, the Center said 215 people called the Center with e-cigarette concerns． More than half of these calls were for children aged five and younger． The devices had made them sick．
Tim McAfee is director of the Center's Office on Smoking and Health, He says the problem is regulation． Meaning, the U．S． federal government does not control e-cigarettes even though they contain liquid nicotine． Mr．McAfee adds that liquid nicotine is a well-known danger． Mr．McAfee explains that nicotine poisoning happens when it gets into the skin, gets into the eyes or is swallowed． It can cause stomach pain or a sense of unbalance． And too much nicotine can kill,
Tim McAfee says e-cigarettes do not create the level of risk to people that tobacco products do．He notes that almost 500,000 Americans die each year from cigarettes． "So, cigarettes are the winner in that contest．" E-cigarettes do not contain hundreds of harmful chemicals that are found in real cigarettes． So, the U．S．Surgeon General Boris D． Lushniak has suggested that e-cigarettes may be a useful tool for adults trying to end their tobacco use．
But McAfee worries that teenagers may think electronic cigarettes are harmless． They could become addicted to the nicotine and then start smoking real cigarettes． In other words, he fears that for young people fake e-cigarettes could be a "gateway" to the real thing．What do the producers think of e-cigarettes?
| A．Dangerous． | B．Expensive． |
| C．Safer． | D．Cheaper． |
Why did the CDC receive so many calls about e-cigarettes?
| A．Parents feared that their children might get poisoned. |
| B．Parents found the device useless in quitting smoking． |
| C．Children swallowed the liquid nicotine from the device． |
| D．Children might get addicted to playing with the device． |
You are the collector in the gallery of your life. You collect. You might not mean to but you do. One out of three people collects tangible（有形的）things such as cats, photos and noisy toys.
There are among some 40 collections that are being shown at “The Museum Of”—the first of several new museums which, over the next two years, will exhibit the objects accumulated by unknown collectors. In doing so, they will promote a popular culture of museums, not what museums normally represent.
Some of the collections are fairly common—records, model houses. Others are strangely beautiful—branches that have fallen from tree, for example. But they all reveal （显露）a lot of things: ask someone what they collect and their answers will tell you who they are.
Others on the way include “The museum of Collectors” and “The Museum of Me”. These new ones, it is hoped, will build on the success of “The Museum Of”. The thinkers behind the project want to explore why people collect, and what it means to do so. They hope that visitors who may not have considered themselves collectors will begin to see they, too, collect.
Some collectors say they started or stopped making collections at important point: the beginning or end of adolescence—“it’s a growing-up thing; you stop when you grow up,”says one. Other painful times are mentioned, such as the end of a relationship. For time and life can seem so uncontrollable that a steady serial（顺序排列的）arrangement is comforting.
How will the new museums promote a popular culture of museums?
| A．By collecting more tangible things. |
| B．By showing what ordinary people have collected. |
| C．By correcting what museums normally represent. |
| D．By accumulating 40 collections two years from now. |
What can be learned about collectors from their collections?
| A．Who they are. |
| B．How old they are. |
| C．Where they were born. |
| D．Why they might not mean to collect. |
Which of the following is an aim of the new museums?
| A．To help people sell their collections. |
| B．To encourage more people to collect. |
| C．To study the significance of collecting. |
| D．To find out why people visit museums. |
According to the last paragraph, people may stop collecting when they
| A．become adults |
| B．feel happy with life |
| C．are ready for a relationship |
| D．feel time to he uncontrollable |
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