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
阅读下列短文，从每小题所给的四个选项(A. B. C和D) 中，选出最佳选项。
| Is veg food healthier than non-veg food? I feel this is a very common topic that people speak on．Please give me your opinions on this topic． |
||
| Rao 12-18-08 |
So far as veg food is concerned, it is also proved to be a healthy and nutritious diet, but has very few items which can provide us with proteins, but if you see non-veg food like eggs, chicken, and many more, such foods have a large content of proteins in them. |
|
| Sai 12-19-08 |
Man basically is herbivorous（食草的）. If we look at the animal kingdom We can see that all the herbivorous animals have the similar dental（牙齿的） structure, which clearly shows that the human being also ought to be vegetarian by birth. It is only the living conditions that make man carnivorous（食肉的）. The vegetarian foods are easily digestible. |
|
| Santos 12-20-08 |
Non-veg food items are better than veg items. A healthy person requires complete diet and veg+ meat makes the diet complete. The only caution that needs to be taken is not to have non-veg items on a daily basis. Once in a week or couple of weeks will be best. |
|
| Krishna 01-03-09 |
When we eat non-veg, we are all veg by nature. The chicken that we eat feeds on grains, the mutton that we eat feeds on grass, and the fish that we eat feeds on simple plants. So non-veg food by logic（逻辑）is better and suited for hauman beings. |
|
| Khan 01-05-09 |
Non-veg food is equally important in our diet as it helps in many ways, especially fish and other seafood as fish contains omega 3 which makes our immune system（免疫系统）stronger. Do you know that most of the veg food put together does not contain as much omega 3 as fish alone contains! |
|
| Khan 01-05-09 |
Non-veg food is equally important in our diet as it helps in many ways, especially fish and other seafood as fish contains omega 3 which makes our immune system（免疫系统）stronger. Do you know that most of the veg food put together does not contain as much omega 3 as fish alone contains! |
|
According to Rao, what is the problem with veg food?
| A．It damages our immune system. | B．It has few nutrients. |
| C．It contains too much omega | D．It is lacking in protein. |
In the opinion of Sai, humans are born vegetarian because humans______.
| A．have the same teeth structure as plant-eating animals |
| B．believe that veg foods are good for their teeth |
| C．belong to the plant-eating animal family |
| D．can adapt to the living conditions like plant-eating animals |
What advice is given by Santos?
| A．To have a saily veg+ meat diet. |
| B． Not to eat non-veg food every day. |
| C．To eat digestible food every day. |
| D．Not to eat food without protein. |
Tell a story and tell it well, and you may open wide the eyes of a child, open up lines of communication in a business, or even open people’s mind to another culture or race.
People in many places are digging up the old folk stories and the messages in them. For example, most American storytellers get their tales from a wide variety of sources, cultures, and times. They regard storytelling not only as a useful tool in child education, but also as a meaningful activity that helps adults understand themselves as well as those whose culture may be very different from their own.
“Most local stories are based on a larger theme,” American storyteller Opalanga Pugh says, “Cinderella(灰姑娘), or the central idea of a good child protected by her goodness, appears in various forms in almost every culture of the world.”
Working with students in schools, Pugh helps them understand their own cultures and the general messages of the stories. She works with prisoners too, helping them know who they are by telling stories that her listeners can write, direct, and act in their own lives. If they don’t like the story they are living, they can rewrite the story. Pugh also works to help open up lines of communication between managers and workers. “For every advance in business,” she says, “there is a greater need for communication.” Storytelling can have a great effect on either side of the manager-worker relationship, she says.
Pugh spent several years in Nigeria, where she learned how closely storytelling was linked to the everyday life of the people there. The benefits of storytelling are found everywhere, she says.
“I learned how people used stories to spread their culture,” she says. “What I do is to focus on the value of stories that people can translate into their own daily world of affairs. We are all storytellers. We all have a story to tell. We tell everybody’s story.”What do we learn about American story tellers from Paragraph 2 ?
| A．They share the same way of storytelling. |
| B．They prefer to tell stories from other cultures. |
| C．They learn their stories from the American natives. |
| D．They find storytelling useful for both children and adults. |
The underlined sentence (Paragraph 4) suggests that prisoners can _____.
| A．direct films |
| B．settle down in another place |
| C．start a new life |
| D．become good actors |
Pugh has practised storytelling with _____ groups of people.
| A．2 | B．3 | C．4 | D．5 |
What is the main idea of the text?
| A．Storytelling can influence the way people think. |
| B．Storytelling is vital to the growth of businesses. |
| C．Storytelling is the best way to educate children in school. |
| D．Storytelling helps people understand themselves and others. |
In most languages, a greeting is usually followed by “small talk”. Small talk means the little things we talk about at start of a conversation. In English-speaking countries people often make small talk about the weather: “Nice day, isn’t it?” But there is something special about small talk. It must be about something which both people have the same opinion about. The purpose of small talk is to let both people agree on something. This makes meeting people easier and more comfortable. People usually agree about the weather, so it is a safer topic for small talk. But people often disagree about religion or politics so these are not suitable topics for small talk in English. The topics for small talk also depend on where the conversation is taking place. At football matches, people make small talk about the game they are watching: “Great game, isn’t it?” At bus stops, people may comment about the transport system: “The bus service is terrible, isn’t it?”
Greetings and small talk are important parts of conversation in any language. The way people greet each other and the things they talk about, however, may be different from one language to another. This shows that there is much more to learn when we learn a language than just the vocabulary and the grammar of the language. We also have to learn the social behavior of the people who speak it.Small talk __________ .
| A．is a kind of conversation with short words |
| B．is a greeting when people meet each other |
| C．is to let people disagree about something |
| D．is something we talk about to start with a conversation |
Why do people need small talk?
| A．To choose a topic for conversation. |
| B．To agree about the weather. |
| C．To let meeting people become easier and more comfortable. |
| D．To learn a language. |
The passage suggests that when we learn a language ,__________．
| A．we should grasp the importance of the language |
| B．we should know the culture of the language |
| C．we should only master the grammar and vocabulary |
| D．we should learn about the transport system of the country |
Maybe it is true that we do not know what we have got until we lose it, but it is also true that we do not know what we have been missing until it arrives. Giving someone all your love is never an assurance that they will love you back. Do not expect love in return; but if it does not, be content it grows in yours.
It takes an hour to like someone, and a day to love someone, but it takes a lifetime to forget someone. Do not rely on one's appearance, it can deceive. Do not rely on wealth, even that fades away. Rely on someone who makes you smile, because it takes only a smile to make a dark day seem bright.
There are moments in life when you miss someone so much that you just want to pick them from your dreams and hug them.
Dream what you want to dream; go where you want to go; be what you want to be, because you have only one life and one chance to do all the things you want to do.
May you have enough happiness to make you sweet, enough trials to make you strong, enough sorrow to keep you human, enough hope to make you happy.
Always put yourself in others' shoes. If you feel that it hurts you, it probably hurts the other person, too.
The happiest of people do not necessarily gave the best of everything; they just make the most of everything that comes along their way. Happiness waits for those who cry, those who have been hurt, those who have searched, and those who have tired, for only they can appreciate the importance of people who have touched their lives.
The brightest future will always be based on a forgotten past. You cannot go on well in life until you let your past failures and heartaches go off.
When you were born, you were crying and everyone around you was smiling. Live your life so that when you die, you are the one who is smiling and everyone around you is crying.The writer thinks the trouble with some people is that they __________.
| A．always take a long view about problems |
| B．look at problems all-sidedly |
| C．can be good at doing with problems |
| D．deal with problems one-sidedly |
Which of the following statements is true according to the passage?
| A．We often don't know what we have lost until it happens. |
| B．If it takes you an hour to love someone, you will easily forget her. |
| C．If you give someone your love, you are sure that she will give her love to you in return. |
| D．If someone accepts your love and he doesn’t give you his love in return, you should be angry with him. |
If you put yourself in another's position, ___________.
| A． you should depend on wealth |
| B．you shouldn't do those things that will hurt you and other people |
| C．you will do what you want to do however dangerous it is to people |
| D．you should depend on other people |
In the last paragraph of the passage, the writer is actually telling us that a man in the world should be one who __________.
| A．can accept the suggestions made by others |
| B．can live happily and forget the past |
| C．does good for the people and is respected by them |
| D．has made a lot of money for himself when he dies |
I was very sympathetic with world leaders burdened with resolving conflicts between nations. When my three children were young, in most days it was hard to keep my house from becoming a war zone. It got worse as they grew older. Three years ago, Zack, then 16, couldn’t make it through a day without playing tricks on his sisters, Alex and Taryn, then 11 and 9.
My husband and I tried to understand his adolescent moodiness. We begged, reasoned, punished, and left heartfelt notes on his bed about how his behavior was hurting our family. His response was a shrug and “I say it because it’s true”.
I even tried telling the girls to fight back. But it was a bad idea. Now I had three kids at war. At wit’s end, I poured my heart out to my sister in an e-mail. She wrote back, “Don’t e-mail me. E-mail him.”
Our son was online every day, mailing and instantly messaging his friends. So what if I was within shouting distance? Maybe he would actually hear me this way. There’d be no yelling or door slamming（猛然关闭）. Zack wouldn’t feel under attack. And with a few simple keystrokes, he could respond. Or not. Zack didn’t reply for days. When he finally did, his entire message was four words. I expected the worst, but then smiled when I read them, ”You are right. I’m sorry.” The kids still fought, of course, but Zack scaled back the abuse (恶习). Best of all, I now have an effective way to communicate with not one but three easily annoyed teens. They don’t tune me out as much. They don’t like to listen to me nag (唠叨) .Or as Alex says, “You’re so much nicer online.”
All I know is that the house is quiet, and we’re talking. In fact, Taryn just instantly messaged me from upstairs. It’s time to take her to softball practice.The purpose of this passage is to tell us _________ .
| A．how to solve family problems |
| B．how a mother shows her love to her children |
| C．how to treat kids in a more sensible way |
| D．the value of understanding between parents and children |
By the first sentence of the passage, the author really means to be_______.
| A．humourous | B．sympathetic | C．serious | D．inspiring |
How did Zack react when the author first tried to stop his bad behavior？
| A．He was annoyed and got worse. |
| B．He talked back to the author. |
| C．He felt sorry and changed. |
| D．He was persuaded and acted politely. |
Zack stopped fighting with his sisters because _________ .
| A．his mother learned how to mail him |
| B．his mother stopped yelling and nagging |
| C．his sisters learned to instantly message him |
| D．his mother had more friendly communications with him online |