UCLA scientists report for the first time on the only known frog species that can communicate using purely ultrasonic(超声）calls, whose frequencies are too high to be heard by humans. Known as Huia cavitympanum, the frog lives only on the Southeast Asian island of Bomeo(婆罗洲）.
Ultrasounds are high-pitched sounds more than 20 kilohertz(kHz) in frequency, which exceeds the upper limit of sounds detectable by humans and is far higher than the 5 to 8 kHz frequencies most amphibians (两栖动物)，reptiles and birds are capable of hearing or producing. Key parts of the ear must be specially adapted to detect ultrasounds.
The frogs can hear sounds up to 38 kilohertz, the highest frequency that any amphibian species has been known to hear, the scientists report. Humans can hear up to about 20 kHz and typically talk at 2 or 3 kHz.
While most of the more than 5，000 frog species worldwide have eardrums that are flat on the side of the head, Huia cavitympanum has eardrums recessed in the side of the skull, similar to mammals.
Peter Narins, UCLA distinguished professor of physiological science and of ecology and evolutionary biology, and Victoria Arch, a UCLA graduate student in ecology and evolutionary biology, spent several nights in the remote area where the frogs live.
" We had very little information suggesting that they would be in this location，" said Arch, lead author of the study. " We found them our first night out. "
The study was published on April 29 in the online journal PLOS ONE, a publication of the Public Library of Science, and is available at
http://dx. plos. org/10. 1371/journal, pone. 05413. Huia cavitympanum mainly live __________.
| A．in all over the world |
| B．in many parts of China |
| C．only on the Southeast Asian island of Borneo |
| D．only on the certain countries' marsh |
This kind of new-found frog can hear each other with up to __________ kHz ultrasounds.
| A．2-3 | B．5 -8 |
| C．more than 20 | D．38 |
If people can hear ultrasounds as frogs do, they should __________.
| A．hear as frogs do carefully |
| B．have a pair of good enough ears like frogs |
| C．concentrate their energy on them |
| D．turn them into common sounds |
According to the passage we can infer that __________.
| A．the result of study is concluded not easily |
| B．some scientists have done a lot of work for the result |
| C．all the frogs have the ability with 38 kHz frequency |
| D．this kind of frogs is as important as animals |
This passage probably appears __________.
| A．on the newspaper | B．on the textbook |
| C．on the website | D．on the report |
What is a lifestyle and how is that different from a life? A lifestyle is about brand names and buying identity or fame. Lifestyle gives a false sense of peace and acceptability that comes from others recognizing what you’ve bought into (as well as bought). If your car, clothes, and home are expensive, you’re sophisticated(世故的) and stylish. If you have the right kind of job or go to the right social gatherings, then you receive the insincere approval of others. This means that your self-esteem(自尊) is always at the mercy of others, with no appreciation of you as an individual.
A life, on the other hand, is very different. A life is what you lead when you know what matters most to you. It is very simple and comes from being connected to what you know is important and being willing to put that first, no matter what others may think. When you create a life vs. a lifestyle, your self-esteem comes from what’s inside you, not what others think about you.
Lifestyle is expensive financially and personally, because it costs a great deal to keep up appearances and do what you think is socially acceptable. A life is not expensive. Rather than using personal or financial resources, a life generates energy and staying power. It’s about liberating yourself from the mindless consumption that society expects. It is about making the choices that are in line with your values, instead of using up your bank account or energy for no heart-driven reason.
How can you make the change? Understand the difference between a life and a lifestyle. Analyze your current lifestyle to see what is costing you in money, time, stress, and energy to maintain it. Let go and make room for what is really important to you, what supports you and brings you joy. Remember who you are from within, not what you own!Which of the following examples best explains “what is life about”?
| A．We work long hours in a job that we do not enjoy. |
| B．We focus on what we wear, or what kind of car we drive. |
| C．We find out what our true beliefs and values are and choose to live by these. |
| D．We think that how others see us is more important than what we think of ourselves. |
What method does the author use to explain his opinion in the third paragraph?
| A．Making comparison. | B．Giving an example. |
| C．Giving a definition. | D．Giving a reason. |
To make the change, we need to______________________.
| A．be directed from within | B．be directed from outside |
| C．be driven by social values | D．be driven by others’ opinions |
What is the author’s purpose of writing this passage?
| A．To describe what life is. |
| B．To introduce what lifestyle is. |
| C．To promote life instead of lifestyle. |
| D．To tell the differences between life and lifestyle. |
Researchers claimed that waitresses who wear red get up to 26 percent extra in tips than they would wearing other colors. However, the team finds that the sexes tip very differently—with the bigger tips coming only from male customers.
No matter what color they wear, female diners will give the same kind of amounts for service every time. Yet men, whether they realize it or not, add anything between 15 and 26 percent more to a waitress in red than they would if it was the same waitress wearing a different color.
The test was simple. Take 11 waitresses in five restaurants over a six-week period and ask them to wear the same kind of T-shirt every day but change the colors. Previous research has suggested waitresses could earn more if they acted charmingly or wore more make-up than their colleagues. But this study, by the Journal of Hospitality and Tourism Research, only changed the color of the T-shirt. Every other aspect from make-up to behavior remained the same.
When wearing either black, white, green, blue or yellow T-shirts, the size of the tips from both male and female customers was almost identical. But when they wore red, the size of the tips went up by between 15 and 26 percent from male customers, yet stayed the same from female ones.
A total of 272 restaurant customers were studied by researchers Nicolas Gueguen and Celine Jacob for the international journal of the tourism industry.
Even as a T-shirt, it shows just how much the color red is thought, by men, to increase the physical and sexual attractiveness of woman, said the researchers.
The researchers wrote: As red color has no negative effect on women customers, it could be in their interest to wear clothes at work.The underlined word “identical” in Para. 4 probably means____________________.
| A．different | B．similar | C．the same | D．close |
According to the passage, in the research by the Journal of Hospitality and Tourism Research waitresses could earn more by _________________.
| A．wearing red T-shirts |
| B．putting on attractive make-up |
| C．changing the color of T-shirts |
| D．behaving themselves |
Which of the following is right according to the passage?
| A．Bright color can increase the physical and sexual attractiveness of women. |
| B．Waitresses in red make no difference to female customers. |
| C．Make-up makes no difference to man customers. |
| D．Whether male customers tips more or not depends on service. |
What is the main idea of the passage?
| A．People tip differently if waitresses wear different make-up. |
| B．Waitresses who wear red get more tips than they would wearing other colors. |
| C．Male customers are more interested in the red color. |
| D．Red color has no negative effect on female customers. |
Like many languages spoken by people, Ayapaneco is dying. Only two people in the world still speak it, and they won't talk to each other.
Spoken in Mexico for centuries, Ayapaneco is one of 68 surviving languages in the mainly Spanish-speaking nation. The two speakers are Manuel Segovia and Isidro Velazquez. Though they live only 500 meters from each other in the village, the two men seldom talk to each other. Daniel, an American expert, who is working to make a dictionary of Ayapaneco, says the two men “don’t have a lot in common,” and that Segovia can be “active” while Velasquez tends to mind his own business and stay at home.
While Segovia still speaks to his wife and son in Ayapaneco, neither of them can manage more than a few words. Velasquez hardly speaks his native tongue any more. Daniel is working to preserve the language in dictionary form before its last surviving speakers pass away. According to Daniel, Ayapaneco and the other languages began dying out with the introduction of public Spanish education in the mid-20th century. For decades, local children weren’t allowed to speak anything else. Many people to cities, starting in the 1970s, also helped the dying out of native languages.
Ayapaneco is the name given to the language; Segovia and Velazquez call it “Nuumte Oote”, which means “true voice”. Neither man, however, speaks the same language. The dictionary will contain two versions(版本) of the language when it comes out later this year. Those behind the dictionary aren’t the only ones trying to save Ayapaneco. The National Language Institute plans to hold classes so that Segovia and Velasquez can pass on what they know to children.
It is thought that there are about 6,000 languages spoken on earth and that about half will disappear over the next 100 years. Let’s hope the “true voice” isn’t one of them.Which are the main reasons why the language Ayapaneco started dying out?
a. No teacher liked to teach it.
b. Local children had to speak Spanish.
c. many villagers went to live in cities.
d. The surviving speakers didn’t like to use it.
| A．a, b | B．a, c | C．b, d | D．b, c |
How does the National Language Institute try to save Ayapaneco?
| A．Write a dictionary of Ayapaneco. |
| B．Let Ayapaneco be taught at school. |
| C．Introduce a public Ayapaneco education. |
| D．Ask villagers to speak Ayapaneco. |
From the text we learn that the author____________________.
| A．agrees that it is natural that Ayapaneco should die out |
| B．thinks Daniel’s effort to preserve Ayapaneco won’t work |
| C．thinks highly of Ayapaneco and wants people to learn it |
| D．hopes that Ayapaneco will not die out in the future |
MUMBAI, India —The children in their party clothes on the stage were very excited when they received the award. And the two of them said, "It’s unbelievable!"
Nine-year-old, Rubina Ali, and Azharuddin Ismail, 10, were living a very different life and obviously loving every minute of it. The two, some of the child stars of the Oscar-winning Slum dog Millionaire(《贫民窟的百万富翁》)movie, know the Indian slums very well. That was where they grew up, and it is where they will return at the end of their Hollywood dream trip.
But before going back home, there was an interview with the host, Ryan Seacrest. During the interview they smiled and repeated their disbelief in what was happening to them. To their surprise, their movie won first place in the Oscars. When the two received the award, it was late morning in the children’s home city of Mumbai, where family, friends and many fellow residents of the slums watched the result from Hollywood.
"I don’t really know what the Oscars are," Rubina’s mother said. "I’m just glad my daughter looks happy, though she told me she missed Indian food."
"Our children lead a dog’s life," Rubina’s mother said, pointing out the rubbish everywhere, the open drains (下水道) and the lack of education opportunities.
In a few days they will be back in Mumbai and back in the slums which are their home. Fortunately, according to media reports, the movie’s director, Danny Boyle, has promised to help the children chosen from the slum and make sure they will go to a proper school.
The two don’t need to worry about their daily lives because of the Oscar success of Slum dog Millionaire. But the poverty and lack of opportunity —the central theme of the movie—is always all around.Which of the following is NOT true about the two children?
| A．They were both excited about receiving the award. |
| B．They had been having a difficult life in India. |
| C．They were interviewed before they went back home. |
| D．They were the only two child stars in the movie, Slum dog Millionaire. |
What can we infer from the text?
| A．The two children have played in other movies before. |
| B．Rinoms’s mother also went to the Hollywood. |
| C．Rubina may not get used to the American food. |
| D．They will travel to other countries before returning home. |
What will happen to the two children after they return to India?
| A．They will go back to the miserable life. |
| B．They will play in movies as famous actors. |
| C．They will leave school to learn acting. |
| D．They will have a better education. |
According to the author, the value of the movie is that ________.
| A．it has been given an Oscar Award |
| B．it has made the two children famous |
| C．it has become popular all over the world |
| D．its central theme has become known to the public |
One year, my school report made my parents angry. On Christmas Eve, all the presents were stolen, along with our TV. My parents told me that there were no presents because Santa was very angry with my behavior over the past year. The next year on Christmas Eve I slept downstairs with a plastic sword waiting for Santa to make sure that he didn't steal the new TV. The next morning, when I woke up, I saw Santa standing there. As soon as I saw that there were no presents, I grabbed my plastic sword and ran at him, shouting angrily: "THIEF! THIEF!"
Jack
When I was young, we always had a specific room for the Christmas tree. My mom never really liked the location, so one year she moved the tree into another room. I was convinced that Santa would not know where the tree was and would get lost in our house. I was worried that he would be mad and put me on the "bad" list and would not give me any gifts because he couldn't find the tree. I came up with the idea to make signs leading from the fireplace to the tree. They said things like: "Tree this way" or "Santa, put the gifts over here." When my big brother saw them he began to laugh his head off.
Lucy
Does everyone remember going to the mall and sitting on Santa’s lap to have his picture taken at Christmas time?
Well, I used to think that if I did that, Santa would get mad because he would have to go all around the world and give every kid the chance to have his picture taken with him. Of course his lap would hurt and he would be very fired. I thought he might keep a copy of the picture and that would be how he decided who would be on his naughty list.
My mom couldn't get me onto Santa's lap until she made him promise I wouldn't end up on his naughty list.
LydiaWhich of the following would be the best title for the passage?
| A．Belief in Santa |
| B．The Excitement on Christmas |
| C．Christmas Gifts |
| D．Christmas Celebration |
The real reason why Jack's TV was taken away is that ______________.
| A．his parents were too careless |
| B．his parents thought he had watched too much TV |
| C．Santa Claus was not satisfied with Jack’s behavior |
| D．Santa gave the TV to another child as a present |
Which of the following is NOT the reason why Lucy didn't want the tree to be moved?
| A．Santa would not know where the tree was. |
| B．Santa would be angry and would not give her any gifts. |
| C．Her big brother might laugh at her. |
| D．Santa might think she was a "bad" child. |
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