Women are friendly. But men are more competitive. Why? Researchers have found it’s all down to the hormone oxytocin(荷尔蒙催生素). Although known as the love hormone, it affects the sexes differently.
“Women tend to be social in their behavior. They often share with others. But men tend to be competitive. They are trying to improve their social status,” said Professor Ryan.
Generally, people believe that the hormone exytocin is let out in our body in various social situations and our body creates a large amount of it during positive social interaction（互动）such as falling in love or giving birth.
But in a previous experiment Professor Ryan found that the hormone is also let out in our body during negative social interactions such as envy.
Further researches showed that in men the hormone oxytocin improves the ability to recognize competitive relationships, but in women it raises the ability to recognize friendship.
Professor Ryan’s recent experiment used 62 men and women aged 20 to 37.
Half of the participants（参与者）received oxytocin. The other half received placebo（安慰剂）.
After a week, the two groups switched with participants. They went through the same procedure with the other material.
Following each treatment, they were shown some video pictures with different social interactions. Then they were asked to analyze the relationships by answering some questions. The questions were about telling friendship from competition. And their answers should be based on gestures, body language and facial expressions.
The results indicated that, after treatment with oxytocin, men’s ability to correctly recognize competitive relationships improved, but in women it was the ability to correctly recognize friendship that got better.
Professor Ryan thus concluded: “Our experiment proves that the hormone oxytocin can raise people’s abilities to better distinguish different social interactions. And the behavior differences between men and women are caused by biological factor（因素）that are mainly hormonal.” What causes men and women to behave differently according to the text?
| A．Placebo. |
| B．Oxytocin. |
| C．The gesture. |
| D．The social status. |
What can we learn from Professor Ryan’s previous experiment?
| A．Oxytocin affects our behavior in a different way. |
| B．Our body lets out oxytocin when we are deep in love. |
| C．Our body produces oxytocin when we feel unhappy about others’ success. |
| D．Oxytocin improves our abilities to understand people’s behavior differences. |
Why did Professor Ryan conduct the recent experiment?
| A．To test the effect of oxytocin on the ability to recognize social interactions. |
| B．To know the differences between friendship and competition. |
| C．To know people’s different abilities to answer questions. |
| D．To test people’s understanding of body language. |
The author develops the text by _______.
| A．explaining people’s behavior |
| B．describing his own experiences |
| C．distinguishing sexual differences |
| D．discussing research experiments |
___1____ Maybe you thought that they were just happy. After all, you probably sing or whistle when you are happy.
However, they sing most of the time for a very different reason. ____2___ Some scientists believe that birds do sing some of the time just because they are happy.
Do you know what a “territory” is? A territory is an area that an animal, usually the male, claims(声称)as its own. ____3___ No other families of the same species are welcome. Your yard and house are your territory where only your family and friends are welcome. If a stranger should enter your territory and threaten you, you might shout. Probably this would be enough to frighten him away. If so, you have actually scared the stranger away without having to fight him. A bird does the same thing. But he expects an outsider almost any time, especially at nesting(筑巢)season. So he is screaming all the time, whether he can see an outsider or not.__4__.
Birds sing loudest in the spring when they are trying to attract a mate and warn others not to enter the territory of theirs. You can see that birds have a language all their own. ___5__
| A．Only he and his family are welcome there. |
| B．Most of it has to do with attracting mates and setting up territories. |
| C．Have you ever wondered why birds sing? |
| D．Their singing is actually a warning to other birds to stay out of their territory. |
E. Have you ever wondered why birds sing?
F. Most of the language is widely used.
G. This screaming is what we call a bird’s song, and it is usually enough to keep an outsider away.
“Write All About It”
Centerville High School Essay（论文）Contest
Rules
1. Students are asked to submit essays of 500 to 700 words of their own work. Any essay containing material plagiarized(剽窃) from another source will be disqualified.
2. Manuscripts should be typed double-spaced, with the student’s name, address, and grade level on a separate sheet of paper.
3. Essays must be turned in by 4:00 p.m. on November 30. They can be brought to Mrs. Elton in Room 104 or to Mr. Markham in the school library.
Essay-Writing Tips
1. Catch your readers’ interest－Your opening should immediately pull your readers into your essay. Asking a question or starting with an anecdote, quotation, or surprising statement are some good ways to do this.
2. Create a picture－Use active words that show your readers what is happening. Instead of telling your readers vaguely that “the room was disordered,” paint a picture using active verbs and lively adjectives.
3. Have a purpose－Well-written essays do more than just describe an incident or express a viewpoint, they also communicate a message.
4.Check for mistakes－Read your paper over to check for mistakes. Ask another student to read your paper and make suggestions. Another pair of eyes will often spot a mistake you’ve overlooked.
5. Format your essay－Neatly type your essay on white paper. Choose an attractive cover for submission. The computer lab will be open after school from 3:15 to 4:45 p.m. each day this month so that students can use the computers.
Prizes
Winning essays will be published in the Centerville Times. Everyone who takes part in it will also receive a free pass to enter one school activity this year.
First Prize:$ 50 savings bond
Second Prize:Dictionary and reference book
Third Prize:Pen set and journalWhich of the following rules is set for the essay contest?
| A．Students can write something exactly as it is written in other books. |
| B．Students’ personal information should be listed on another piece of paper. |
| C．Essays must be brought to Mr. Markham in the computer lab on November 30. |
| D．The students winning second prize will be awarded a dictionary and a book. |
Which of the following writing tips is given in the passage?
| A．Drawing a picture to go with the essay. |
| B．Trying to communicate an important idea to readers. |
| C．Asking a teacher to find the mistakes you haven’t found. |
| D．Making the essay short enough to hold the readers’ interest. |
The article is written to ____.
| A．convince the students of the prizes available |
| B．explain how to write a good essay |
| C．inform the students of the essay contest |
| D．show how to organize an essay contest |
Researchers at San Diego Zoo have been studying what has been described as the “secret language” of elephants. They have been monitoring（监测） communications between animals that cannot be heard by human ears.
The elephant’s call will be familiar to most people, but the animals also give out growls (低吼). Their growls, however, are only partly audible (听得见的); two-thirds of the call is at frequencies that are too low to be picked up by our hearing. To learn more about the inaudible part of the growl, the team attached (附在……上面) a microphone sensitive to these low frequencies and a GPS tracking system to eight of the zoo’s female elephants. The researchers could then relate the noises the animals were making to what they were doing. Matt Anderson, who led the project, told BBC News, “We’re excited to learn how they interact and contact with one another.”
The team has already learned that pregnant females use this low frequency communication to announce to the rest of their long gestation (妊娠期) of over two years, in the last 12 days we see the low part of the growl, which we can’t hear. This we believe is to announce to the rest of the herd that the baby is upcoming,” said Dr Anderson.
The researchers believe that this also warns the elephants to look out for coming danger. “You may think that a baby calf of about 300 pounds would not be as open to predation (捕食) as other species,” he says. “But packs of hyenas (袋狼) are a big threat in the wild.”
Female elephants are only in season for around four days every four years and these calls can be heard by males more than two miles away.Why some elephants’ call is called “secret language”?
| A．Because it can’t be heard by human ears. |
| B．Because it can only be heard by female elephants. |
| C．Because people don’t know its meanings. |
| D．Because people haven’t studied it completely. |
By using a sensitive microphone and a GPS tracking system, the researchers wanted to find out .
| A．where the elephants usually go |
| B．what the elephants’ growls really mean |
| C．how mother elephants raise baby calves |
| D．how elephants protect their babies. |
A pregnant elephant uses inaudible growls to.
| A．show the location where she is staying |
| B．ask for help when she losses her way |
| C．scare away the enemy |
| D．let others know she will have a baby |
What is the passage mainly about?
| A．The elephants can speak like people. |
| B．The wild elephants’ ways to fight against enemies. |
| C．The “secret language” between elephants. |
| D．The special life of female elephants. |
Kataria is the founder of the worldwide laughter movement. The celebration of world Laughter Day is a positive activity for world peace and is intended to build up a global sense of brotherhood and friendship through laughter. The first “World Laughter Day” gathering took place in Mumbai, India, on 11th January 1998. 12,000 members from India and international Laughter Clubs attended it. Now there are over 5,000 Laughter Clubs worldwide on all 5 continents.
“HAPPY-DEMIC” was the first World Laughter Day gathering outside India. It took place on 9th January 2000. In Copenhagen, Denmark , more than 10,000 people gathered at Town Hall Square. The event went into Guinness Book of World records. “World Laughter Day” is now organized on the first Sunday of May every year. Hundreds of people gather worldwide on that day to laugh together.
Today, many people fear widespread international terrorism（恐怖主义）. The world has never faced so much unrest before. People are at war within themselves. Laughter is a universal language, which has the ability to unite humanity without religion（宗教）. Laughter can build a common connection between various religions and create a new world order. The idea may sound over-ambitious (野心太大的), and maybe it is. But maybe it is not. It is our deep belief that laughter and only laughter can unite the world, building up a global sense of brotherhood and friendship.
Studies also say that laughter helps your body do the following: lower blood pressure; lighten depression; reduce stress; work out the heart, especially for those who are unable to perform physical exercise. So in life, when you can laugh, you should laugh loudly and with your entire body—because it’s good for you.The purpose of celebrating World Laughter Day is ____.
| A．to build up a global sense of brotherhood and friendship through laughter |
| B．to build a common connection between various religions |
| C．to reduce stress and lighten depression |
| D．to lower blood pressure |
The first World Laughter Day gathering outside India took place ____.
| A．on 11th. January, 1998 |
| B．on the first Sunday of May |
| C．on 9th. January, 1996 |
| D．on 9th. January, 2000 |
The author’s attitude towards laughter movement is ____.
| A．positive | B．negative | C．uninterested | D．objective |
The passage is mainly about _______.
| A．World Laughter Day and its significance |
| B．the worldwide laughter movement |
| C．a universal language |
| D．laughter |
Given Australia’s size and the fact that early settlements were far apart, Australian society is remarkably homogeneous (同种的). Its citizens are fundamentally prosperous and the way of life in the major cities and towns is much the same however many miles divide them. It takes a sharp ear to identify regional accents. However, there is some difference in lifestyle between city dwellers and the country people. Almost 90 per cent of the population lives in the fast-paced cities along the coast and has little more than a passing familiarity with the desert. The major cities preserve pockets of colonial heritage, but the overall impression is modern, with new buildings reflecting the country’s youth. In contrast, the rural communities tend to be slow-moving and conservative. For many years, Australia was said to have “ridden on the sheep’s back”, a reference to wool being the country’s main money earner. However, the wool industry is no longer dominant. Much of Australia’s relatively sound economy is now achieved from natural coal and wheat, and by being the largest diamond producer in the world. Newer industries such as tourism and wine making are also increasingly important. Australians are generally friendly and relaxed, with a self-deprecating sense of humor. On the whole, Australia is a society without hierarchies (等级制度), an attitude generally held to stem from its prisoner beginnings.
Yet, contrary to widespread belief, very few Australians have true prisoner origins. Within only one generation of the arrival of the First Fleet in 1788, Australia had become a nation of immigrants. Originally coming almost entirely from the British Isles, today one in three Australians comes from elsewhere. Australia’s liberal postwar immigration policies led to an influx of survivors from war-torn Europe, most notably Greeks, Italians, Poles and Germans.
The emphasis has shifted in recent years and today the majority of new immigrants are from Southeast Asia. Today Australia is a ‘blend of nations’ and although some racism exists, it has generally been a successful experiment and the country is justifiably proud to have one of the most harmonious multicultural communities in the world.What does the writer mean by saying “It takes a sharp ear to identify regional accents.” in the first paragraph?
| A．Australians speak Standard English with no local accents whatsoever. |
| B．You have to practice a lot to learn to understand the different accents. |
| C．The Australian regional accents are very difficult to understand indeed. |
| D．There is not much difference between the accents in different areas of Australia. |
Which of the following statements is TRUE according to the passage?
| A．Most Australians have ancestors who were prisoners. |
| B．The Australian economy is dependent on sheep exports. |
| C．The majority of people living in Australia come from Europe. |
| D．The pace of life is different in the city and in the country. |
The underlined pronoun ‘it’ in the final paragraph refers to “_______”.
| A．Community | B．racism | C．blend of Nations | D．Southeast Asia |
We can infer from the passage that _____.
| A．there are no signs of Australia’s colonial past in its modern cities |
| B．Australia’s recent immigration policy encourages immigrants from Southeast Asia |
| C．immigrants from Southeast Asia have brought racial problems |
| D．“riding on sheep’s back” resulted in slow development in rural communities |