IT'S a mystery that has puzzled scientists. Five years ago, researchers found an area in the Atlantic Ocean seabed, where a part of the Earth's outer layer, or crust（地壳）, is missing. A thick layer of dark green rock, which is usually found deep inside the planet, lies exposed.
The crust, mantle(地幔) and core（地核） are the main layers that make up the planet. The mantle rests between the crust and the core.
Last month, a team of 12 British scientists set off on a six-week trip to study the hole in the crust.
The hole is about 4,800 meters below sea level and is believed to be more than 48,000 meters long and more than 48,000 meters wide. Scientists think that there are other nearby gaps. "It is like a window into the interior (内部) of the Earth," says scientist Bramley Murton, who is part of the research team.
The site where the hole is located is part of a ridge (山脉) of undersea volcanoes. There, two of the plates that make up the Earth's surface meet. The plates are always moving. When the plates move away from each other, lava rushes up from the mantle to fill the gap and form a new crust. But this did not happen in the area where the hole is located.
The hole is giving researchers a good opportunity to study what's below the Earth's surface. The team will use a special robotic tool to film the area and get samples of the exposed mantle. They hope to study everything from the chemistry of the oceans to how the Earth's surface behaves under the sea. What's the title for the passage?
| A．How to study the earth. |
| B．The formation of the earth. |
| C．A hole in the earth. |
| D．Studying the inside of the earth. |
For the main layers of the earth, which one is right?
| A．crust, mantle, core | B．seabed, crust, mantle |
| C．seabed, mantle, core | D．crust, seabed, core |
How does the hole come into being?
| A．It's because of a volcano eruption. |
| B．It's because of the plates movements |
| C．It's because lava rushes up from the mantle |
| D．It's not clear from the passage. |
By studying the hole, the scientists want to do the following except____.
| A．knowing what's below the Earth's surface |
| B．getting samples of the exposed mantle |
| C．getting the film of the hole |
| D．studying the chemistry of the oceans |
Beauty has always been regarded as something admirable. Almost everyone thinks attractive people are happier and healthier, have better marriages and have more respectable jobs. Personal consultants (顾问) give them better advice for finding jobs. Even judges are softer on attractive persons. But in the executive circle (政界), beauty can become a liability.
While attractiveness is a positive thing for a man’s rise, it is harmful to a woman. Handsome male executives were considered as having more honesty than plainer men; effort and ability were thought to be the reasons for their success. Attractive female executives were considered to have less honesty than unattractive ones; their success was attributed not to ability but to factors such as luck. All unattractive women executives were thought to have more honesty and to be more capable than the attractive female executives.
Why are attractive woman not thought to be able? An attractive woman is thought to be more feminine (女性的) and an attractive man more masculine (男性的) than the less attractive ones. Thus, an attractive woman has an advantage in traditionally female jobs, but an attractive woman in a traditionally masculine position appears to lack the "masculine" qualities required．
This is true even in politics. Anne Bowman recently published a study on the effects of attractiveness on political candidates (候选人). She asked 125 undergraduate students to rank two groups of photographs, one of men and one of women in order of attractiveness. The students were told the photographs were of candidates for political offices. They were asked lo rank them again, in the order they would vote for them.
The results showed that attractive males completely defeated unattractive men, but the woman who had been ranked most attractive always received the fewest votes.In traditionally female jobs, attractiveness _____.
| A．strengthens the feminine qualities required |
| B．makes women look more honest and capable |
| C．is of great importance to women |
| D．often enables women to succeed quickly |
Bowman’s experiment shows that when it comes to politics, attractiveness _____.
| A．turns out to be an obstacle to men |
| B．affects men and women alike |
| C．has as little effect on men as on women |
| D．is more of an obstacle than a benefit to women |
It can be inferred from the passage that people's views on beauty are often _____.
| A．practical | B．old-fashioned |
| C．prejudiced (偏见的) | D．serious |
The author writes this passage to _____.
| A．discuss the negative aspects of being attractive |
| B．give advice to job-seekers who are attractive |
| C．demand equal rights for women |
| D．emphasize the importance of appearance |
A "lost tribe" that reached America from Australia may have been the first Native Americans, according to a new theory.
If proved by DNA evidence, the theory will break long established beliefs about the southerly migration of people who entered America across the Bering Strait, found it empty and occupied it.
On this theory rests the belief of Native Americans to have been the first true Americans. They would be classified to the ranks of escapee, beaten to the New World by Aboriginals (土著人) in boats.
To a European, this may seem like an academic argument, but to Americans it is a philosophical question about identity (身份), Silvia Gonzales, of Liverpool University said .
Her claims are based on skeletons found in the California Peninsula of Mexico that have skulls (头骨) quite unlike the broad Mongolian features of Native Americans. These narrow-skulled people have more in common with southern Asians, Aboriginal Australians and people of the South Pacific Region.
The bones, stored at the National Museum of Anthropology (人类学) in Mexico City, have been carbon-dated and one is 12,700 years old, which places it several thousand years before the arrival of people from the North. "We think there were several migration waves into the Americas at different times by different human groups," Dr. Gonzales said． "The timing, route and point of origin of the first colonization of the Americas remains a most contentious topic in human evolution."
But comparisons based on skull shape are not considered conclusive by anthropologists, so a team of Mexican and British scientists, backed by the Natural Environment Research Council, has also attempted to take out DNA from the bones. Dr. Gonzales declined yesterday to say exactly what the results were, as they need to be checked, but indicated that they were consistent（一致） with an Australian origin. It is generally considered that the first Native Americans came from _____.
| A．North Asia | B．Australia | C．South Pacific | D．South Asia |
The skeletons found in the California Peninsula of Mexico have _____.
| A．the broad skull shape |
| B．the narrow skull shape |
| C．different features of Aboriginal Australians |
| D．the same features of Native Americans |
The underlined “contentious” is similar in meaning to “_____”.
| A．likely to cause great interest | B．difficult to solve |
| C．well-known to all | D．likely to cause argument |
Which of the following statements is true according to the text?
| A．Research on skulls can draw an exact conclusion. |
| B．DNA tests have proved the fact that the first Native Americans came from Australian. |
| C．Scientists are still not sure about the origin of the Native Americans. |
| D．People began to enter America across the Bering Strait about 12,700 years ago. |
He could have been president of Israel or played violin at Carnegie Hall, but he was too busy thinking. His thinking on God, love and the meaning of life grace our greeting cards and day-timers.
Fifty years after his death, his shock (蓬乱) of white hair and hanging mustache still symbolize genius. Einstein remains the foremost scientist of the modern time. Looking back 2,400 years, only Newton, Galileo and Aristotle were his equals.
Around the world, universities and academies (研究院) are celebrating the 100th anniversary of Einstein's "miracle year" when he published five scientific papers in 1905 that basically changed our grasp of space, time, light and matter. Only he could top himself about a decade later with his theory of relativity.
Born in the age of horse-drawn carriages, his ideas launched a technological revolution that has made more change in a century than in the previous two thousand years. Computers, satellites, telecommunication, lasers, television and nuclear power all owe their invention to ways in which Einstein exposed a stranger and more complicated reality underneath the world．
He escaped Hitler's Germany and devoted the rest of his life to human rights and peace with an authority unmatched by any scientist today, or even most politicians and religious leaders. He spoke out against fascism (法西斯主义) and racial prejudice. His FBI (美国联邦调查局) file ran 1,400 pages.
His letters expose a disorderly personal life -- married twice and indifferent toward his children while absorbed in physics. Yet he charmed lovers and admirers with poetry and sailboat outings. Friends and neighbors fiercely protected his privacy.The first paragraph implies that Einstein _____.
| A．had the gift for politics and music |
| B．had run for president before he worked at his research |
| C．was an excellent violinist |
| D．was more a political leader or a musician than a thinker |
When you think of Einstein, what typical appearance was formed in your mind?
| A．Funning and humorous, with an air of a musician. |
| B．Wearing very wide trousers, a moustache, with an image of an actor. |
| C．Rough untidy mass of white hair and hanging moustache, with an image of thinking. |
| D．Black long hair and moustache, with his eyes deep set. |
Why was 1905 called Einstein’s “miracle year”?
| A．Because he topped himself with the theory of relativity. |
| B．Because he made important discoveries of space, time, light and matter. |
| C．Because he published five papers on his theory of relativity. |
| D．Because he wrote five important articles to help people better understand space, time, light |
and matter.Which of the following is not true about Einstein according to the passage?
| A．When he was absorbed in his research, he didn’t care for his family. |
| B．He tried to amuse his family and friends in his spare time. |
| C．He was so busy with the physical research that he showed no interest in politics. |
| D．His theory led to much improvement in many technological fields. |
You may open your electronic mail and find information about how to buy medicine, cheap airline tickets, books and, of course, computers and computer products．There may also be offers for investment deals, bank loans and special holidays．However, to many computer users, this use of electronic spare to sell products has become a major problem as it makes computer communication more difficult．
Many companies who want to send a great deal of advertising might use the services of a “spammer．” A spammer is a person or company that uses computers to send out millions of copies of the same sales information．Spammers find e-mail addresses from websites, news groups and “chat rooms” where people send messages to each other．Most spare is sent by companies who are trying to get you to buy their products．Some of these are honest companies that offer good products or services for a fair price．These companies can offer their products at a cheaper price than you might find in a store．However, much of the spam on the Internet is sent by criminals who are trying to sell products that do not exist or offer services they will not provide．They are only interested in stealing your money．When you answer their spam you find you are expected to send them money and receive a gift．One country in Africa has become famous for the number of criminals who try every known trick to separate people from their money．What does the underlined word “spam” in the paragraph probably refer to ?
| A．Unwanted electronic information that reaches computer users． |
| B．Computer virus that causes computer communication difficulties． |
| C．Advertisements sent out by companies who want to sell their products． |
| D．Companies that send out millions of copies of the same sales information． |
．Which of the following is TRUE according to the text?
| A．Companies who want to send a great deal of advertising are referred to as spammers． |
| B．Spammers are people who collect e-mail addresses from websites, newsgroups and “chat rooms”． |
| C．Either individuals or organizations can be regarded as spammers if they send out spam． |
| D．Spammers are people who receive spam on their computers． |
Which is the possible suggestion from the writer concerning spam ?
| A．Spain is very helpful in providing you with useful information about product sales． |
| B．Spam helps companies to sell more of their products so it should be valued by people． |
| C．Spam is sent out by those who want to separate you from your money． |
| D．Look out for any spam that reaches your computer |
So much to do, so little time．So much information, so little time to read ．In this age there is more information than ever before．There is not enough time to read everything we want to read．However, you can take in and understand more information in shorter time through speed-reading．This article will not make you read 3 000 words per minute, but it will show you how to increase your speed greatly．You will also learn the basic techniques of speed reading, along with the dos and don'ts of speed-reading．
When you first learned to read, you would say the word out loud and sound it out．Then you might whisper the word because people can become annoyed when you read aloud．The stage you are now at is saying the word in your head．Most people tend to read this way．Saying the word in your head will cut your reading speed tremendously (极大的)．
How do you calculate your reading speed? The speed is measured by how many words per minute you can read．Get some reading material, preferably a book．Find out how many words are on the page．Time yourself one minute．Start your timer and start reading．When the timer sounds, stop at once．If you counted 500 words on the page and you read half of the page, then you are probably reading at 250 words per minute．
The first thing about speed-reading is looking at the word and recognizing it．Don't say the word in your mind, just look at it and recognize its appearance．Later you will recognize groups of four words or more to increase your speed．This is the first and most important step in speed-reading．
The next step is technique．As with any other skill, speed-reading requires technique．You should first be sitting up straight with your book on a horizontal (水平的) surface, such as a table or desk．Next, should be able to see the entire page．This is necessary if you want to recognize clumps of words．Lastly, you should be focused．It's hard to read a lot of noise．Find a quiet place to read．This will help your understand of the text．You need something to guide your eyes while reading．Then right, you should use your hand, Remember when you were little, you would read using your finger．That is a great technique, only now you're using your hand to underline each line．Move your finger smoothly across page．No need to go rush , start our slow．Keep your eyes focused on words as you recognize them while using your hand as a guide．This will increase you speed．
The third step is practice．Practice makes perfect．Set time intervals(间歇)．Read using different techniques, but make sure you understand what you're reading．Which of the following statements is true according to the text?
| A．Now there is limited information than ever before． |
| B．Now conditions ask people to use less time to know more information． |
| C．Now people can read what they like． |
| D．The less you read, the more time you will spend． |
What is the subject discussed in the text?
| A．What speed-reading is． |
| B．Why we need speed-reading． |
| C．Now it is much information time． |
| D．People should practice speed-reading in different kinds of ways． |
Which of the following shows the right way for the speed-reading from the text?
a．Ask for some techniques．
b．Look at many words and recognize them．
c．Practice more．
| A．c,a,b | B．c,b,a | C．b,a,c | D．a,c,b |
The underlined sentence“you should be focused”in the fifth paragraph means that _________．
| A．a person should devote his attention to it while reading |
| B．your feelings will be hurt while reading |
| C．a person should smooth away difficulties while he reads |
| D．you should pay attention to your faults while you are reading |
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