It is difficult for doctors to help a person with a damaged brain. Without enough blood, the brain lives for only three to five minutes. More often the doctors can' t fix the damage. Sometimes they are afraid to try something to help because it is dangerous to work on the brain. The doctors might make the person worse if he operates on the brain.
Dr. Robert White, a famous professor and doctor, thinks he knows a way to help. He thinks doctors should make the brain very cold. If it is very cold, the brain can live without blood for 30 minutes. This gives the doctor a longer time to do something for the brain.
Dr. White tried his idea on 13 monkeys. First he taught them to do different jobs, then he operated on them. He made the monkeys' blood go through a machine. The machine cooled the blood. Then the machine sent the blood back to the monkeys' brains. When the brain' s temperature was 10°C, Dr. White stopped the blood to the brain. After 30 minutes he turned the blood back on. He warmed the blood again. After their operations the monkeys were like they had been before. They were healthy and busy. Each one could still do the jobs the doctor had taught them. The biggest difficulty in operating on the damaged brain is that _______.
| A．the time is too short for doctors |
| B．the patients are often too nervous |
| C．the damage is extremely hard to fix |
| D．the blood-cooling machine might break down |
The brain operation was made possible mainly by _______.
| A．taking the blood out of the brain |
| B．trying the operation on monkeys first |
| C．having the blood go through a machine |
| D．lowering the brain' s temperature |
With Dr. White' s new idea, the operation on the damaged brain _______.
| A．can last as long as 30 minutes | B．can keep the brain' s blood warm |
| C．can keep the patient' s brain healthy | D．can help monkeys do different jobs |
What is the right order of the steps in the operation?
a. send the cooled blood back to the brain
b. stop the blood to the brain
c. have the blood cooled down
d. operate on the brain
| A．a,b,c,d | B．c,a,b,d | C．c, b, d, a | D．b, c, d, a |
Function of Mass Media
Mass media are tools of communication. Mass media allow us to record and pass information rap-idly to a large, scattered(分散的）audience. They extend our ability to talk to each other by helping us overcome barriers caused by time and space.
There are various ways in which mass media make daily life easier for us. First, they inform and help us keep a watch on our world. They gather and pass on information we would be unlikely or unable to get on our own.
Second, mass media help us to arrange time and life. What we talk about and what we think about are greatly influenced by the media. When people get together, they tend to talk about certain happenings in the newspapers or on TV. Because we are exposed(暴露）to different points of view through different kinds of media every day, we are able to evaluate(评价）all sides of a certain issue.
Third, the media are used to persuade people. A good example is advertisements through the media. Newspapers, magazines and TV are filled with all kinds of colorful, persuasive advertisements. Though many advertisements may not say openly that they want you to buy a certain product, they describe their products in such a way that you may want to buy them.
Fourth, the media also entertain. All of the media make some effort to entertain their audience. For instance, even though the newspaper is primarily a medium of information, it also contains entertain-ment features(特征）. Television, motion pictures, fiction books and some radio stations and magazines are devoted mainly to entertainment. It is estimated that in the future, the entertainment
function of mass media will become even more important than it is now. This passage mainly tells us __________.
| A．something about the function of mass media |
| B．something about the development of mass media |
| C．how the media entertain us |
| D．the types of mass media |
How many ways in which mass media help make daily life easier are mentioned in this passage?
| A．Two. |
| B．Three. |
| C．Four. |
| D．Five. |
It can be known from the passage that __________.
| A．from mass media, we know what is happening in the world |
| B．sometimes we arrange our time and life according to mass media |
| C．mass media's main purpose is to pass the information of advertisements |
| D．mass media can make people feel easy |
From the passage we know that __________.
| A．mass media are the only tools of communication |
| B．mass media make our life much more difficult |
| C．the media tell people truth at any time |
| D．in the future mass media will make us more relaxed |
Games originally are entertainment. Contem-porary games are very realistic and for this reason they are a source of great experience for the player and develop the imagination. Games are entertain-ment and even more than that. The statistics (统计）of the New York University led by Green claim that the player preferring active games get improvement of some types of brain activity. In particular, game players deal with problems of simulta-neously(同时地） tracking several moving objects at the average level of 30% better than people who do not play active computer video games. The "gaming" violent experience may not be the cause of violent behavior in reality. None of the playing experience will become the priority in making important decisions concerning problems in real life. A game is an abstraction(抽象概念）. A player gets abstract tasks and acts according to abstract rules.
Games are also the possibility to be whatever a person wants to be and to rest from the outside world for some time. But what if a person gets so much excited with the game scenes that he becomes violent in reality? Then, it proves that the games cause people to become violent in reality. But a psychologically healthy person will never confuse these two different worlds. A game is a virtual world with visual images very similar to human's. These images are nothing but playing obstacles(障碍）. A game may potentially give the opportunity to "destroy the obstacles”that may not be destroyed according to the rules but it is more about personal choice whether to do it or not. This leads us to the conclusion that violence is not a consequence but the cause. People who are originally prone to violence may get into a temper by games and perform violence in the “ real world ”. But in this case violence in games is just a simple justification(正当的理由）of the violent nature of the player. The passage is __________.
| A．a story |
| B．a descriptive writing |
| C．an argumentative writing |
| D．a scientific essay |
In the first paragraph the author used the statistics to prove that __________.
| A．games can provide experience for the players |
| B．games can help develop players' imagination |
| C．games can cause violent behavior |
| D．games are more than entertainment |
What is the author's attitude towards the "computer games”？
| A．"Violent games" can lead to the performance of violence in the real world. |
| B．Violence is not a consequence of the “ computer games” but the cause. |
| C．Games are just entertainment and nothing more. |
| D．The virtual world and the real world are just the same. |
The best title for this passage is __________.
| A．Violent games cause violence |
| B．Games-resulting in violence? |
| C．The cause of violence |
| D．The consequence of games |
What is eBay? The simple answer is that it is a global trading platform where nearly anyone can trade practically anything. People can sell and buy all kinds of products and goods. Including cars, movies and DVDs, sporting goods, travel tickets, musical instruments, clothes and shoes—the list goes on and on.
The idea came from Peter Omidyar, who was born in Paris and moved to Washington when he was still a child. At high school, he became very interested in computer programming and after graduating from Tuft University in 1988，he worked for the next few years as a computer engineer. In his free time he started eBay as a kind of hobby, at first offering the service free by word of mouth. By 1996 there was so much traffic on the web-site that he had to upgrade (升级)and he began charging a fee to members. Joined by a friend, Peter Skill, and in 1998 by his capable CEO, Meg Whitman, he has never looked back. Even in the great. com crashes of the late 1990s, eBay has gone from strength to strength. It is now one of the the most visited online shopping websites on the Internet.
eBay sells connections, not goods* putting buyers and sellers into contact with each other. All you have to do is make an e-photo, write a description, fill out a sales form and you are in business： the world is your market place. Of course for each item (商品)sold eBay gets a percentage and that is a great deal of money. Every day there are more than sixteen million items listed on eBay and eighty percent of the items are sold.We learn from the text that eBay provides people with ________ .
| A．a way of buying and selling goods |
| B．a website for them to upgrade |
| C．a place to exhibit their own photos |
| D．a chance to buy things at low prices |
Why did Peter create eBay after graduating from university?
| A．For fun. |
| B．To make money. |
| C．For gathering the engineers. |
| D．To fulfill a task of his company. |
From "he has never looked back" in Paragraph 2 we learn that Peter ________ .
| A．did not feel lonely |
| B．was always hopeful |
| C．did not think about the past |
| D．became more and more successful |
How does eBay make money from its website?
| A．By bringing callers together. |
| B．By charging for each sale. |
| C．By listing items online. |
| D．By making e-photos. |
A 33-year-old financial analyst in California recently quit his job to devote himself to an unpaid job teaching math on the Internet, and his lessons are reaching almost 100，000 people a month. Sal-man Khan's voice is heard every day on the net—by tens of thousands of students around the world who are hungry for help in learning math. He has posted 1，200 lessons on YouTube—lessons that appear on an electronic blackboard, which range from basic addition to advanced mathematics for science and finance. And they are free.
Khan lives in Silicon Valley, with his wife, a doctor, and their new baby. He got the idea for his “Khan Academy" four years ago, when he taught a young cousin how to convert (转换）kilograms to grams. With Khan's help, the cousin got good at math, and Khan began a new career.
Now, Khan records his lessons himself, but he never goes on camera. “It feels like my voice in their head. You're looking at it and it feels like someone's over your shoulder talking in your ear, as opposed to someone at the blackboard, which is distant from you，” he said.
When Springfield High School in Palo Alto, California invited Khan to speak in person—he immediately connected to the students there.
The idea of short lessons that can be played over and over again attracted high school senior Bridget Meaney. She says she had trouble with math in the seventh grade. “I think the teachers are good, but they can't teach at a speed that's perfect for everyone，” she said. “I like the idea of learning something in class but then going back and pressing pause or rewind (倒回）and actually getting a deeper understanding of it. ”
Originally, Khan kept his lessons short because of YouTube restrictions (限制）. Now, he thinks short is better. “Education researchers now tell me that 10 minutes is how long someone can have a high level of concentration. And anything beyond that and your brain switches off，"he said.
For Khan, teaching math, science, and finance is just the beginning. He says he's ready to expand his YouTube site to include other subjects as well. What gave Khan the idea of teaching math online?
| A．His success in helping his cousin learn math. |
| B．His discovery that many students found learning math difficult. |
| C．A suggestion made to him at a local high school. |
| D．His interest in Internet teaching. |
Why does Khan never go on camera?
| A．He's too shy to show his face on camera. |
| B．It's restricted by YouTube for education videos. |
| C．He wants to keep distant from the viewers. |
| D．He wants to create a more relaxed learning atmosphere. |
Why does Bridget Meaney like Khan's lessons?
| A．Khan teaches seventh grade math better than her teacher. |
| B．The lessons can be watched repeatedly until fully understood. |
| C．She can perfectly follow the pace of Khan's teaching. |
| D．She cannot concentrate when learning in class. |
From the passage, we know that __________.
| A．Khan travels to many schools to promote his lessons |
| B．Khan plans to include more subjects in the future |
| C．Khan gives live math lessons every day for free |
| D．Khan set up the Khan Academy with his wife |
Most people have a general list before a job interview—updating a resume (简历)，ironing a professional suit, rehearsing an explanation for those two years spent after college. However, if tidying up the Facebook profile isn't on that list, maybe it should be.
According to a new study conducted by Harris Interactive for CareerBuilder. com45 percent of employers questioned are using social networks to screen people looking for jobs this year—more than double from a year earlier, when a similar survey found that just 22 percent of employers were researc-hing potential hires on social networking sites like Facebook, MySpace, Twitter and Linkedln.
The study, which questioned 2，667 managers and human resource workers, found that 35 percent of employers decided not to offer a job to a candidate based on the content uncovered on a social net-working site.
The report showed that Facebook was the most popular online destination for employers to do their online sleuthing(侦查），followed by Linkedln and MySpace. In addition，7 percent followed job applicants on Twitter. More than half of the employers who participated in the survey said that provocative(挑衅的）photos were the biggest factor contributing to a decision not to hire a potential employee, while 44 percent of employers aimed at references to drinking and drug use as red flags. Other warning signs included bad-mouthing of previous employers and colleagues and poor online communication skills.
While most of these may seem like obvious blocks, what consists of alarming behavior to a particular employer? Would photographs of a trip to the beach be considered inappropriate? To be on the safe side, it's probably wise to use the new privacy settings offered by Facebook to keep everything but the most innocuous(无害的）content away from the public eye. Your general list before a job interview should include all the following EXCEPT __________.
| A．a written form of your education and previous jobs |
| B．preparing appropriate clothes |
| C．tidying up your information on social net-works |
| D．rehearsing what the employer would say to you |
What can we learn from the passage?
| A．Social networks are not important in job hunting. |
| B．Online information about job hunters is not reliable. |
| C．We should be careful while sending photos to social networks. |
| D．Facebook is not so popular as it used to be. |
Why should the job seekers use the new privacy settings offered by Facebook?
| A．Because they can keep everything from being seen by others. |
| B．Because they can keep the employers from seeing the inappropriate content. |
| C．Because they can only allow a particular employer to see their data online. |
| D．Because they can allow their friends to see their trips to the beach. |
The passage is mainly intended for __________.
| A．employers |
| B．employees |
| C．people work for Facebook |
| D．job applicants |