E
When an ant dies, other ants take it out of the nest, often within an hour after its death. This behavior interests scientists and they wonder how ants know for sure—and so soon—that another ant is dead.
One scientist recently came up with a way to explain this ant behaviour. Dong-Hwan Choe is a biologist, a scientist who studies animals and plants. He found that ants have a chemical on the outside of their bodies that signals to other ants, “I'm dead—take me away” when it is dead.
But there's a question to answer: As we know, if an ant is dead, it stops moving. But when an ant is sleeping or knocked unconscious, it is also not moving. However, other ants don't move the living ant out of the nest. How do they know this ant is not dead? Choe found that ants have another chemical on their bodies, which tells nearby ants something like
, “Wait—I'm not dead yet”when it is not dead. Choe suspects that when an ant dies, the chemical that says, “Wait I'm not dead yet”quickly goes away. When other ants detect the“dead”chemical without the“not dead yet”chemical, they move away the body.
To test his theory , Choe and his team put different chemicals on ants. When the scientists used the “I'm dead” chemical, other ants quickly moved the treated ant away. When the scientists used the“Wait—I'm not dead yet”chemical, other ants left the treated ant alone. Choe believes this behavior shows that the“not dead yet”chemical overrides the“dead” chemical when picked up by other ants. And that when an ant dies, the “not dead yet” chemical fades away. Other nearby ants then detect the remaining“dead”chemical and remove the body from the nest.
Understanding this behavior can help scientists figure out how to stop ants 
from invading new places and causing problems.
57. What is the function of the first paragraph?
A. Leading the following paragraphs.
B. Showing the main idea of the passage.
C. Introducing the background of the passage.
D. Giving a summary of the passage.
58. Which of the following has the closest meaning to the underlined word “overrides” in the fourth paragraph?
A.is weaker than B. is stronger than C. is better than D. is worse than
59. What can we learn from the passage?
A. Living ants can also be taken away when they are not moving.
B. When an ant dies, it can tell others using a certain chemical.
C. A living ant can pretend to be dead using a special chemical.
D. Ants often use chemicals to communicate with each other.
60. Which of the following descriptions about Dong-Hwan Choe is right?
A. Choe did this study in order to stop ants from invading new places.
B.
Choe is a biologist who is only interested in animals, especially in ants.
C. Choe first came up with an idea to explain this ant behavior，and then did some tests to prove his theory.
D. Choe did the research on this ant behavior on his own
Along the river banks of the Amazon and the Orinoco there lives a bird that swims before it can fly, flies like a fat chicken, eats green leaves, has the stomach of a cow and has claws (爪) on its wings
when young. They build their homes about 4.6m above the river, an important feature (特征) for the safety of the young. It is called the hoatzin.
In appearance, the birds of both sexes look very much alike with brown on the back and cream and red on the underside. The head is small, with a large set of feathers on the top, bright red eyes, and blue skin. Its nearest relatives are the common birds, cuckoos. Its most striking feature, though, is only found in the young.
Baby hoatzins have a claw on the leading edge of each wing and another at the end of each wing tip. Using these four claws, together with the beak (喙), they can climb about in the bushes, looking very much like primitive birds must have done. When the young hoatzins have learned to fly, they lose their claws.
During the drier months between December and March hoatzins fly about the forest in groups of 20 to 30 birds, but in April, when the rainy season begins, they collect together in smaller living units of two to seven birds for producing purposes.
| 1． |
What is the text mainly about?
|
| 2． |
Young hoatzins are different from their parents in that
|
| 3． |
What can we infer about primitive birds from the text?
|
| 4． |
Why do hoatzins collect together in smaller groups when the rainy season comes?
|
EDGEWOOD - Every morning at Dixie Heights High School, customers pour into a special experiment: the district's first coffee shop run mostly by students with special learning needs.
Well before classes start, students and teachers order Lattes, Cappuccinos and Hot Chocolates. Then, during the first period, teachers call in orders on their room phones, and students make deliveries.
By closing time at 9.20 a.m., the shop usually sells 90 drinks.
"Whoever made the chi tea, Ms. Schatzman says it was good," Christy McKinley, a second year student, announced recently, after hanging up with the teacher.
The shop is called the Dixie PIT, which stands for Power in Transition. Although some of the students are not disabled, many are, and the PIT helps them prepare for life after high school.
They learn not only how to run a coffee shop but also how to deal with their affairs. They keep a timecard and receive paychecks, which they keep in check registers.
Special-education teachers Kim Chevalier and Sue Casey introduced the Dixie PIT from a similar program at Kennesaw Mountain High School in Georgia.
Not that it was easy. Chevalier's first problem to overcome was product-related. Should schools be selling coffee? What about sugar content?
Kenton County Food Service Director Ginger Gray helped. She made sure all the drinks, which use non-fat milk, fell within nutrition (营养) guidelines.
The whole school has joined in to help.
Teachers agreed to give up their lounge (休息室) in the mornings. Art students painted the name of the shop on the wall. Business students designed the paychecks. The basketball team helped pay for cups.
| 1． |
What is the text mainly about?
|
| 2． |
The Dixie PIT program was introduced in order to
|
| 3． |
How did Christy McKinley know Ms. Schatzman's opinion of the chi tea?
|
| 4． |
We know from the text that Ginger Gray．
|
Directions: Read the following passage, Answer the questions according to the
information given in the passage.
Secret Santas
On Christmas morning, Linda wakes up, and tries to imagine the wide-eyed surprise of children in another household as they unwrap the presents she carefully chose for them. Linda has never met the children, but that's all part of the joy of giving as secret Santas, she says.
"It's an amazing feeling to buy gifts on an anonymous (匿名的) basis," says Linda.
"It brings a whole new meaning to the holidays."
Linda and Tony are an American couple living in Toronto, Canada, and Linda did charitable work as a member of the American Women's Club of Toronto. As the name suggests, members are U.S. citizens living in Toronto, who join together for fellowship and community service.
To find her "adopted" family, Linda goes to the local schools and requests a wish list for a family that's struggling to survive. Last year she helped a single mother with three children. The mother works as a cleaning lady in a nursing home.
"The list is always heartbreaking. They have an opportunity to ask for anything and do just the opposite, asking for basic clothes or simple toys," she says. "We always buy the kids a new winter coat, hats, and gloves." She also buys gifts for the parents.
Last year Linda asked the mother for a second wish list--one that didn't include the basics. "Every child should have a Christmas that sticks with them for a lifetime." She purchased iPods for the two older children and a video game system for the youngest."I have learned a very valuable lesson in all of this," says Linda. "Pay attention to what's going on in your own backyard--no matter where you live."
The joy of giving as secret Santas is much sweeter when the gift is anonymous.
| 1． |
What reaction does Linda imagine the children will have? |
| 2． |
Why did Linda join the American Women's Club of Toronto? |
| 3． |
Why did Linda ask for a second wish list? |
| 4． |
What kind of people does "secret Santas" in the passage refer to? |
People from East Asia tend to have more difficulty than those from Europe in distinguishing facial expressions--and a new report published online in Current Biology explains why.
Rachael Jack, University of Glasgow researcher, said that rather than scanning evenly
(均匀的) across a face as Westerners do, Easterners fix their attention on the eyes.
"We show that Easterners and Westerners look at different face features to read facial expressions," Jack said. "Westerners look at the eyes and the mouth in equal measure, whereas Easterners favor the eyes and neglect (忽略) the mouth."
According to Jack and her colleagues, the discovery shows that human communication of emotion is more complex than previously believed. As a result, facial expressions that had been considered universally recognizable cannot be used to reliably convey emotion in cross-cultural situations.
The researchers studied cultural differences in the recognition of facial expressions by recording the eye movements of 13 Western Caucasian and 13 East Asian people while they observed pictures of. expressive faces and put them into categories: happy, sad, surprised, fearful, disgusted, angry, or neutral. They compared how accurately participants read those facial expressions using their particular eye movement strategies.
It turned out that Easterners focused much greater attention on the eyes and made significantly more errors than did Westerners. "The cultural difference in eye movements that they show is probably a reflection of cultural difference in facial expressions," Jack said. "Our data suggest that whereas Westerners use the whole face to convey emotion, Easterners use the eyes more and mouth less."
In short, the data show that facial expressions are not universal signals of human emotion. From here on, examining how cultural factors have diversified these basic social skills will help our understanding of human emotion. Otherwise, when it comes to communicating emotions across cultures, Easterners and Westerners will find themselves lost in translation.
1. The discovery shows that Westerners ___________
A. pay equal attention to the eyes and the mouth
B. consider facial expressions universally reliable
C. observe the eyes and the mouth in different ways
D. have more difficulty in recognizing facial expressions
2. What were the people asked to do in the study?
A. To make a face at each other. B. To get their faces impressive.
C. To classify some face pictures. D. To observe the researchers' faces.
3. What does the underlined word "they" in Paragraph 6 refer to?
A. The participants in the study.
B. The researchers of the study.
C. The errors made during the study.
D. The data collected from the study.
4. In comparison with Westerners, Easterners are likely to ___________
A. do translation more successfully
B. study the mouth more frequently
C. examine the eyes more attentively
D. read facial expressions more correctly
5. What can be the best title for the passage?
A. The Eye as the Window to the Soul
B. Cultural Differences in Reading Emotions
C. Effective Methods to Develop Social Skills
D. How to Increase Cross-cultural Understanding
When Mary Moore began her high school in 1951, her mother told her, "Be sure and take a typing course so when this show business thing doesn't work out, you'll have something to rely on." Mary responded in typical teenage fashion. From that moment on, "the very last thing I ever thought about doing was taking a typing course," she recalls.
The show business thing worked out, of course. In her career, Mary won many awards. Only recently, when she began to write Growing Up Again, did she regret ignoring her morn," I don't know how to use a computer," she admits.
Unlike her 1995 autobiography, After All, her second book is less about life as an
award-winning actress and more about living with diabetes (糖尿病). All the money from the book is intended for the Juvenile Diabetes Research Foundation (JDRF), an organization she serves as international chairman. "I felt there was a need for a book like this," she says."I didn't want to lecture, but I wanted other diabetics to know that things get better when we're self-controlled and do our part in managing the disease."
But she hasn't always practiced what she teaches. In her book, she describes that awful day, almost 40 years ago, when she received two pieces of life-changing news. First, she had lost the baby she was carrying, and second, tests showed that she had diabetes. In a childlike act, she left the hospital and treated herself to a box of doughnuts (甜甜圈). Years would pass before she realized she had to grow up--again---and take control of her diabetes, not let it control her. Only then did she kick her three-pack-a-day cigarette habit, overcome her addiction to alcohol, and begin to follow a balanced diet.
Although her disease has affected her eyesight and forced her to the sidelines of the dance floor, she refuses to fall into self-pity. "Everybody on earth can ask, 'why me?' about something or other," she insists. "It doesn't do any good. No one is immune (免疫的) to heartache, pain, and disappointments. Sometimes we can make things better by helping others. I've come to realize the importance of that as I've grown up this second time. I want to speak out and be as helpful as I can be."
1. Why did Mary feel regretful?
A. She didn't achieve her ambition.
B. She didn't take care of her mother.
C. She didn't complete her high school.
D. She didn't follow her mother's advice.
2.We can know that before 1995 Mary___________。
A. had two books published
B. received many career awards
C. knew how to use a computer
D. supported the JDRF by writing
3. Mary's second book Growing Up Again is mainly about her __________
A, living with diabetes
B, successful show business
C. service for an organization
D. remembrance of her mother
4. When Mary received the life-changing news, she __________
A. lost control of herselfB. began a balanced diet
C. Med to get a treatment D. behaved in an adult way
5. What can we know from the last paragraph?
A. Mary feels pity for herself.
B. Mary has recovered from her disease.
C. Mary wants to help others as much as possible.
D. Mary determines to go back to the dance floor.