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New research at Yale University has provided the strongest evidence that humans are evolving（进化）- and suggests that women of the future will be shorter, heavier, and healthier, and will have children for longer.
As medicine has allowed people who would previously have died young to live to childbearing age and beyond, many have assumed that natural selection no longer works on our species. But Prof Stephen Stearns, the evolutionary biologist at Yale University behind the study, says: "That's just plain false." While survival to reproductive age（生育年龄） is no longer such a barrier（障碍） for humans, other evolutionary pressures – including sexual selection and reproductive fitness – are still working away in full force. If the trends the research detected are representative and continue for another 10 generations, Prof Stearns says that the average woman in 2409AD will be 2cm shorter and 1kg heavier, will bear her first child five months earlier.
Prof Stearns and his team studied the medical histories of 14,000 residents of the Massachusetts town of Framingham, using medical data from a study going back to 1948 and spanning three generations. It looked at 2,238 women past reproductive age – so that they had had all the children they were going to – and tested their height, weight, cholesterol（胆固醇）, blood pressure, and other traits, to see if there was a correlation with the number of children they had borne. It found that shorter, heavier women had more children than lighter, taller ones. Women with lower blood pressure and cholesterol were also more likely to have large families. Women who gave birth early or had a late menopause were likely to have more children as well. More importantly, however, these traits were then passed on to their daughters, who also, on average, had more children.
The study has not determined why these factors are linked to reproductive success, but it is likely that they indicate genetic, rather than environmental, effects. Prof Stearns’ team controlled for other factors, including social and cultural change.
Research suggesting humans are evolving has been carried out before, but this is believed to be the first that directly compares reproductive success of individuals with physiological changes（生理变化）.
72. What is the main idea of the passage?
A. Natural selection no longer works on our species, especially the woman.
B. Woman of the future will be shorter, heavier, and healthier, and will have children for longer
C. Some genetic, rather than environmental effects has more influence on the evolvement of the humans.
D. Evolutionary pressures are still working in full force on the evolvement of the humans.
73. Which of the following statements is False about the women’s evolvement according to the research?
A. women will shorter
B. women will be fatter
C. The time for the women to have baby will be longer
D. women will be cleverer
74. Which factor is the most promising related to reproductive success?
A. Genetic B. Social C. Environmental D. Cultural
75. This passage may most likely be taken from .
A. a geography magazine
B. a medicine and technology research journal
C. a daily newspaper
D. an entertainment book
Which is safer --- staying at home, traveling to work on public transport, or working at the office? Surprisingly, each of these carries the same risk, which is very low．However, what about flying compared to working in the chemical industry? Unfortunately, the former is 65 times riskier than the latter! In fact the accident rate of workers in the chemical industry is less than that of almost any of human activity, and almost as safe as staying at home．
The trouble with the chemical industry is that when things go wrong they often cause death to those living nearby．It is this that makes chemical accidents so newsworthy．Fortunately, they are extremely rare．The most famous ones happened at Texas City （1947）, Flixborough （1974）, Seveso （1976）, Pemex （1984） and Bhopal （1984）．
Some of these are always in the minds of the people even though the loss of life was small．No one died at Seveso, and only 28 workers at Flixborough．The worst accident of all was Bhopal, where up to 3,000 were killed．The Texas City explosion of fertilizer killed 552．The Pemex fire at a storage plant for natural gas in the suburbs of Mexico City took 542 lives, just a month before the unfortunate event at Bhopal．
Some experts have discussed these accidents and used each accident to illustrate a particular danger．Thus the Texas City was caused by tons of ammonium nitrate, which is safe unless stored in a great quantity．The Flixborough fireball was the fault of management, which took risks to keep production going during essential repairs．The Seveso accident shows what happens if the local authorities lack knowledge of the danger on their doorstep．When the poisonous gas drifted over the town , local leaders were incapable of taking effective action．The Pemex fire was made worse by an overloaded site in an overcrowded suburb．The fire set off a chain reaction of exploding storage tanks．Yet, by a miracle, the two largest tanks did not explode．Had these caught fire, then 3,000 strong rescue team and fire fighters would all have died．Which of the following statements is TRUE?
| A．Working at the office is safer than staying at home． |
| B．Travelling to work on public transport is safer than working at the office． |
| C．Staying at home is safer than working in the chemical industry． |
| D．Working in the chemical industry is safer than traveling by air． |
Chemical accidents are usually important enough to be reported as news because .
| A．they are very rare |
| B．they often cause loss of life |
| C．they always occur in big cities |
| D．they arouse the interest of all the readers |
According to the passage, the chemical accident that caused by the fault of management happened in_________．
| A．Texas city | B．Flixborough |
| C．Seveso | D．Mexico City |
From the passage we know that “ammonium nitrate” is a kind of _____．
| A．natural gas, which can easily catch fire |
| B．fertilizer, which can't be stored in a great quantity |
| C．poisonous substance, which can't be used in overcrowded areas |
| D．fuel, which is stored in large tanks |
From the discussion among some experts we may conclude that _____．
| A．to avoid any accident we should not repair the facilities in chemical industry |
| B．the local authorities should not be concerned with the production of the chemical industry |
| C．all these accidents could have been avoided or controlled if effective measures had been taken |
| D．natural gas stored in very large tanks is always safe |
Many cities have subways and underground public transportation to take locals and tourists alike rapidly around the city．However, there’s something different about riding a London subway．It may not look different, but the historical value of one of England’s most popular forms of transportation is enough to make riding the subway a must when visiting London．With a little under 300 different stations, the subway can take you almost anywhere you need to go．
Riding a London subway, a person from other countries will notice one major difference: in London, people do not look at each other．In fact, eye contact is avoided at all times．That’s not rudeness ―people are just too busy to bother looking．
Busy doing what, you ask? Well, they’re certainly not using the time for a moment of quiet thinking．Nor are they reading a book．New technology has replaced quiet habits．Today the only acceptable form of book on the London underground is an e-book．
Apple must earn a fortune from London commuters（使用月票上下班者）．Since the launch of the iPhone in 2007, over 40,000―yes, that’s 40,000 “apps” have been designed．
Commuters love them because they are the perfect time-fillers．One “app”, called iShoot, is a game that features tanks．Another one, Tube Exits, tells passengers where to sit on the train to be closest to the exit of their destination．iSteam clouds the iPhone screen when you breathe into the microphone．You can then write in the “steam” on your phone screen．
For those without an iPhone, another Apple product, the iPod, may be the distraction（消遣）of choice．It’s not just teenagers who “plug in” to their music－iPods are a popular way to pass the time for all ages．
And if games, e-books and music aren’t enough to keep you occupied, then perhaps you would prefer a film? The development of palm DVD technology means many commuters watch their favorite TV shows or films on the way to work．With all these distractions, it’s amazing that people still remember to get off the train．Those who want to save time to reach where they go can download ______ to their iPhones．
| A．iShoot | B．Tube Exits | C．iSteam | D．iPod |
People in London do not make eye contact on the subway because ______
| A．they are going to work and have no time to communicate with each other |
| B．they love reading books and do not want to be disturbed |
| C．they feel sleepy because of getting up early |
| D．they are busy playing games, reading e-books, listening to music or watching films |
The underlined word “apps” in the fourth paragraph means ______．
| A．computers | B．programs downloaded for the iPhone |
| C．computer companies | D．fortune from London commuters |
Which word best describes the writer’s attitude towards commuters’ behaviors?
| A．for | B．against | C．neutral | D．hateful |
The main idea of the passage is that ______．
| A．London commuters are unfriendly to strangers |
| B．Apple has earned a lot of money from selling 40,000 apps |
| C．technology is changing how London commuters spend their traveling time |
| D．riding a London subway is a must when visiting London |
Two friends have an argument that breaks up their friendship forever, even though neither one can
remember how the whole thing got started. Such sad events happen over and over in high schools across the country. In fact, according to an official report on youth violence, “In our country today, the greatest threat to the lives of children and adolescents is not disease or starvation or abandonment, but the terrible reality of violence”. Given that this is the case, why aren’t students taught to manage conflict the way they are taught to solve math problems, drive cars, or stay physically fit?
First of all, students need to realize that conflict is unavoidable. A report on violence among middle school and high school students indicates that most violent incidents between students begin with a relatively minor insult. For example, a fight could start over the fact that one student eats a peanut butter sandwich each lunchtime. Laughter over the sandwich can lead to insults, which in turn can lead to violence. The problem isn’t in the sandwich, but in the way students deal with the conflict.
Once students recognize that conflict is unavoidable, they can practice the golden rule of conflict resolution: stay calm. Once the student feels calmer, he or slid should choose words that will calm the other person down as well. Rude words, name-calling, and accusation only add fuel to the emotional fire. On the other hand, soft words spoken at a normal sound level can put out the fire before it explodes out of control.
After both sides have calmed down, they can use another key strategy for conflict resolution: listening. Listening allows the two sides to understand each other. One person should describe his or her side, and the other person should listen without interrupting. Afterward, the listener can ask non-threatening questions to clarify the speaker’s position. Then the two people should change roles.
Finally, students need to consider what they are hearing. This doesn’t mean trying to figure out what’s wrong with the other person. It means understanding what the real issue is and what both sides are trying to accomplish. For example, a shouting match over a peanut butter sandwich might happen because one person thinks the other person is unwilling to try new things. Students need to ask themselves questions such as these: How did this start? What do I really want? What am I afraid of? As the issue becomes clearer, the conflict often simply becomes smaller. Even if it doesn’t, careful thought helps both sides figure out a mutual solution.
There will always be conflict in schools, but that doesn’t mean there needs to be violence. After students in Atlanta started a conflict resolution program, according to Educators for Social Responsibility, “64% of the teachers reported less physical violence in the classroom; 75% of the teachers reported an increase in student cooperation; and 92% of the students felt better about themselves”. Learning to resolve conflicts can help students deal with friends, teachers, parents, bosses, and coworkers. In that way, conflict resolution is a basic life skill that should be taught in schools across the country.This article is mainly about .
| A．the lives of school children |
| B．the cause of arguments in schools |
| C．how to deal with school conflicts |
| D．how to analyze youth violence |
From Paragraph 2 we can learn that .
| A．violence is more likely to occur at lunchtime |
| B．the eating habit of a student is often the cause of a fight |
| C．students tend to lose their temper easily |
| D．a small conflict can lead to violence |
Why do students need to ask themselves the questions stated in Paragraph 5?
| A．To make clear what the real issue is |
| B．To get ready to try new things. |
| C．To find out who is to blame |
| D．To figure out how to stop the shouting match. |
After the conflict resolution program was started in Atlanta, it was found that .
| A．more teachers felt better about themselves in schools |
| B．there was a decrease in classroom violence |
| C．there was less student cooperation in the classroom |
| D．the teacher-student relationship greatly improved |
The writer’s purpose for writing this article is to .
| A．complain about problems in school education |
| B．teach students different strategies for school life |
| C．advocate teaching conflict management in schools |
| D．inform teachers of the latest studies on school violence |
“Just take a deep breath.”“Don’t think about it.”“You’re more likely to die in a car wreck on the way to the airport than you are in a plane crash.” These are just some words given to people with a fear of flying. But as Tom Cruise, playing Lt. Daniel Kaffee in the movie A Few Good Men, said, “I get sick when I fly because I’m afraid of crashing into a large mountain. I don’t think Daniel will help.”
But there’s a new application that just may. Today, the VALK Foundation, a Dutch group that’s a partnership between KLM Royal Dutch Airlines and the University of Leiden, launches the app in the US. The VALK Foundation was one of the first centers for research and fear-of-flying treatment in the world and is the organizer of three world conferences on fear of flying.
The foundation said the app, called Flight App VALK, is the first scientifically-developed, web-based treatment for people who suffer from mild to moderate fear of flying.
“The fear of flying application we have created aims to transfer all of the knowledge we have developed through our program into a mobile application that will help ease travelers’ fears,” said Dr. Lucas van Gerwen, director of the VALK Foundation. Dr. van Gerwen is also a psychologist and professional pilot with more than 30 years experience.
The foundation said up to 30% of adults are fearful fliers. The Flight App is designed to help relax passengers before and during flights by educating users about flight safety and turbulence. It explains the sounds and sensations they can expect during departure, flight and landing. And, if a passenger’s flight stress reaches a panic level, they press a special panic button which provides audio and written information to help decrease stress levels. Most importantly, the Flight App can be used during the flight in the airplane mode. Once downloaded, the program does not require Internet connection in the air.By saying the words at the beginning of the passage, people are expected to ______.
| A．decrease their fear of flying |
| B．get rid of their doubt about plane |
| C．have a good time on their flight journey |
| D．use some medicine to cure their fear of flying |
According to the passage, the VALK Foundation ______.
| A．is a group focusing on psychology on the flight |
| B．was the first center to do research into fear of flying |
| C．organize the world conferences on fear of flying annually |
| D．focuses on researching and offering treatment on fear of flying |
Flight App VALK is aimed to ______.
| A．help passengers experience the fear of flying |
| B．help relax passengers before and during flights |
| C．treat people who suffer from mild fear of flying |
| D．teach people the basic knowledge of taking flight |
What does the last paragraph mainly tell us?
| A．Many adults are suffering from fear of flying |
| B．It’s convenient for people to use the Flight App |
| C．Many planes will be installed with the Flight App |
| D．The Flight App can decrease stress levels effectively |
In which column of a newspaper can we read this passage?
| A．Culture | B．Entertainment |
| C．Technology | D．Education |
Looking back on my childhood. I am convinced that naturalists are born and not made. Although we were brought up in the same way, my brothers and sisters soon abandoned their pressed flowers and insects. Unlike them, I had no ear for music and languages. I was not an early reader and I could not do mental arithmetic.
Before Word War I we spent our summer holidays in Hungary. I have only the dim memory of the house we lived in, of my room and my toys. Nor do I recall clearly the large family of grandparents, aunts, uncles and cousins who gathered next door. But I do have a crystal clear memory of dogs, the farm animals, the local birds and above all, the insects.
I am a naturalist, not a scientist. I have a strong love of the natural world, and my enthusiasm has led me into varied investigations. I love discussing my favorite topics and enjoy burning the midnight oil reading about other people’s observations and discoveries. Then something happens that brings these observations together in my conscious mind. Suddenly you fancy you see the answer to the riddle. Because it all seems to fit together .This has resulted in my publishing 300 papers and books. Which some may light honor, with the title of scientific research.
But curiosity a keen eye, a good memory and enjoyment of the animal and plant world do not make a scientist? One of the outstanding and essential qualities required is self-discipline, a quality I lack. A scientist can be made a naturalist. If you can combine the two, you get the best of both worlds. According to the author, a born naturalist should first of all be _____
| A．full of ambition | B．self-disciplined |
| C．full of enthusiasm | D．knowledgeable |
The first paragraph tells us that the author _____
| A．lost his hearing when he was a child |
| B．didn’t like his brothers and sisters |
| C．was interested in flowers and insects in his childhood |
| D．was born to a naturalist’s family |
The author says that he is a naturalist rather than a scientist probably because he thinks he ____.
| A．just rends about other peoples observations and discoveries. |
| B．Lacks some of the qualities required of scientist. |
| C．Has a great deal of trouble doing mental arithmetic. |
| D．Come up with solutions in most natural ways. |
The author can’t remember him relatives clearly because__
| A．He didn’t live very long with them |
| B．He was too young when he lived with them. |
| C．The family was extremely large |
| D．He was fully occupied with observing nature. |
Which of the following statements is true?
| A．The author believes that a born naturalist can not be scientist. |
| B．The author read a lot of books about the natural world and oil industry |
| C．The author’s brothers and sisters were good at music and languages. |
| D．The author spent a lot of time working on riddles. |
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