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The purpose of the passage is ______.
| A．to introduce a new magazine | B．to help parents with their daily life |
| C．to attract more subscribers | D．to collect more money for charity |
Which of the following is true according to the ad?
| A．Only $12 is to be paid for 24 issues of the magazine |
| B．Readers can get a free offer of the magazine any time of the year |
| C．Readers from all over the world can enjoy the free offer |
| D．Readers can communicate face to face with child experts on the Internet |
A reader subscribed PARENTS 3 months ago, but now he finds the magazine dissatisfying. What can he do?
| A．He can cancel without getting your money back. |
| B．He can cancel after answering a series of questions. |
| C．He can e-mail them to access your bank account to get all your money back. |
| D．He can cancel and get all money back without answering any questions. |
What makes a person a scientist? Does he have ways or tools of learning that are different from those of others? The answer is “no”. It is not the tools a scientist uses but how he uses these tools that makes him a scientist. You will probably agree that knowing how to use a power is important to a carpenter. You will probably agree, too, that knowing how to investigate(调查),how to discover information, is important to everyone. The scientist, however, goes one step further, he must be sure that he has a reasonable answer to his questions and that his answer can be confirmed by other persons. He also works to fit the answers he gets to many questions into a large set of ideas about how the world works.
The scientist’s knowledge must be exact. There is no room for half right or right just half the time. He must be as nearly right as the conditions permit. What works under one set of conditions at one time must work under the same conditions at other times. If the conditions are different, any changes the scientist observes in a demonstration must be explained by the changes in the conditions. This is one reason that investigations are important in science. Albert Einstein, who developed the theory of relativity, arrived at this theory through mathematics. The accuracy of his mathematics was later tested through investigations. Einstein’s ideas were shown to be correct. A scientist uses many tools for measurements. Then the measurements are used to make mathematical calculations that may test his investigations.What makes a scientist according to the passage?
| A．The tools he uses. | B．His ways of learning. |
| C．The way he uses his tools. | D．The various tools he use |
“The scientist, however, goes one step further,” the author says this to show 。
| A．the importance of information |
| B．the importance of thinking |
| C．the difference between scientists and ordinary people |
| D．the difference between carpenters and people with other jobs. |
A sound scientific theory should be one that .
| A．does not only work under one set of conditions at one time, but also works under the same conditions at other times |
| B．leaves no room for improvement |
| C．does not allow any change even under different conditions |
| D．can be used for many purposes |
What is the main idea of the passage?
| A．Scientists are different from ordinary people. |
| B．The theory of relativity. |
| C．Exactness is the core（核心）of science. |
| D．Exactness and way of using tools are the keys to the making of a scientist. |
Below is a table which shows the melting(液化)and boiling points of common substances.Study the table.Then do Numbers 4—7.
| Substance |
Melting point(C) |
Boiling Point(C) |
| Water Alcohol Nitrogen Oxygen |
0 –117 –210 -218 |
100 78 –196 –183 |
The underlined word‘substances'means‘a type of'_________.
| A．matter | B．liquid |
| C．solid | D．gas |
Which of the four should be a liquid at-90 degrees?
| A．water | B．alcohol |
| C．nitrogen | D．oxygen |
Mixing alcohol and water is often used to wash windscreens of cars during the wintertime because _________.
| A．it is easier for alcohol to change into gas |
| B．alcohol is not easily separated from water |
| C．alcohol freezes at lower temperature than water |
| D．the mixture is not expensive |
In order to change water from a solid to a liquid energy must be _________.
| A．removed | B．added |
| C．created | D．destroyed |
Perhaps the most famous theory, the study of body movement, was suggested by Professor Ray Birdwhistell. He believes that physical appearance is often culturally programmed. In other words, we learn our looks—we are not born with them. A baby has generally informed face features. A baby, according to Birdwhistell, learns where to set the eyebrows by looking at those around-family and friends. This helps explain why the people of some areas of the United States look so much alike, new Englanders or Southerners have certain common face features that cannot be explained by genetics (遗传学). The exact shape of the mouth is not set at birth, it is learned after. In fact, the final mouth shape is not formed until well after new teeth are set. For many, this can be well into grown-ups. A husband and wife together for a long time often come to look alike. We learn our looks from those around us. This is perhaps why in a single country area where people smile more than those in other areas. In the United States, for example, the South is the part of the country where the people smile most frequently. In New England they smile less, and in the western part of New York State still less. Many southerners find cities such as New York cold and unfriendly, partly because people on Madison Avenue smile less than people on Peachtree Street in Atlanta, Georgia. People in largely populated areas also smile and greet each other in public less than people in small towns do. Ray Birdwhistell believes that physical appearance ___________.
| A．has little to do with culture |
| B．has much to do with culture |
| C．is ever changing |
| D．is different from place to place |
According to the passage, the final mouth shape is formed _____________.
| A．before birth |
| B．as soon as one’s teeth are newly set |
| C．sometime after new teeth are set |
| D．around 15 years old |
Ray Birdwhistell can tell what area of the United States a person is from by __________.
| A．how much he or she laughs |
| B．how he or she raises his or her eyebrows |
| C．what he or she likes best |
| D．the way he or she talks |
This passage might have been taken out of a book dealing with ____________.
| A．physics | B．chemistry |
| C．biology | D．none of the above |
Jonathan James looks like just another kid about to graduate from high school. But this 19-year-old Swede is anything but ordinary, from the computer in his parents’ home he helps the US Federal Bureau of Investigation (FBI) find out the world’s most wanted cyber criminals (网络犯罪分子).
Jonathan first made headlines when he and another Swede, Fredrik Bjoerck, found out the maker of the “Melissa” virus (病毒) in March 1999. He came to the aid of the FBI again on May 7, finding out the suspected (嫌疑的) sender of the dangerous “I LOVE YOU” virus. The suspect was caught in Manila on May 8.
Jonathan’s special skills are in hot demand as officials around the world express alarm at the “virtual” crimewave. In between studying for final exams, hanging out with friends and refereeing his younger brother’s football matches, the quiet, gentle teenager also gives lessons on e-security (电子安全) to large companies. He reads a lot and exchanges information with other computer experts to know much about the latest tricks of the hacker (黑客) trade.
Many companies have already tried to employ him, but he is not interested at the moment. Instead, he plans to begin law school in the autumn at Sweden’s Uppsala University and start up his own e-security company.
Although he works with the FBI now, his family insists he’s just “a regular kid”. “Jonathan is a great kid, he has his friends and he does a lot more than just play with the computer,” his little sister Tessa said, adding that he helps the FBI because “he likes to help”, not because he’s looking for fame and recognition.
When the world was hit by the “Love Bug” virus, Jonathan was too busy preparing a speech on e-security to look into the problem. “Finally on May 7, I had some free time, so I began looking.” Within a few hours, he had found the suspect and e-mailed his method and results to the FBI. He said his work on the “Melissa” virus, which took three weeks to solve, was a big help in finding the suspect so quickly.
“This time I knew exactly where to start, I knew what to disregard and what to look at.” The passage mainly wants to tell us that ___________.
| A．Swedish kid helps FBI find out the most wanted cyber criminals |
| B．Jonathan is really a quiet, gentle and ordinary boy |
| C．many companies want the young computer expert to join in |
| D．any cyber criminals will surely be found out wherever they are |
The public started to know something about Jonathan just from _________.
| A．his helping the US FBI to find out the sender of the dangerous “I LOVE YOU” virus |
| B．his work together with Fredrik Bjoerck to find out the maker of the “Melissa” virus |
| C．his little sister’s talk about his good qualities as a regular kid and a good programmer |
| D．his speech on e-security to many computer companies after his fight against hackers |
From Jonathan’s success in finding out the sender of the dangerous ‘Love Bug” virus we can infer that _________.
| A．where there’s a will, there’s a way |
| B．experience is knowledge |
| C．hard work leads to success |
| D．failure is the mother of success |
What do we know about Jonathan?
| A．He is a good fame hunter with various abilities. |
| B．He is such a brave fighter that any criminal will feel afraid. |
| C．He is an expert on security, not interested in running a company. |
| D．He is a regular kid but does something unusual. |
Before a new type of airplane goes into service, every part of it is tested again and again. But there are two tests that are more important than all the others.
The first is called the “tank test”. A modern airplane must fly very high in the sky. Air must be pumped into the plane so that the passengers can breathe. The metal structure (结构) of the plane has to be very strong for this reason. When the plane is filled with air, the air presses against the skin of the plane inside. The pressure (压力) on a small window is like a huge foot that is trying to get out. If a small part of the plane were to fail, the plane would explode in the sky. To test the structure of the plane, the plane is lowered into a huge tank or container of water. Then it is filled with air. The pressure inside the plane is greater than it ever will be when it is high up in the air. Finally, there is an explosion. This does not cause so much damage inside the water tank as it would anywhere else. Engineers can discover which part of the plane has broken. Then that part is made stronger.
The most dangerous test happens when the new plane is going through test flights in the air. The test pilot must find out exactly what happens when the engines (发动机) are all shut off at once. The plane begins to fall like a stone. It is the pilot’s job to find out how he can get control of the plane again. These two tests are examples of how planes are made safe before they ever carry passengers.By doing the “tank test”, the engineers can find out ___________.
| A．the pressure inside and outside the plane |
| B．the strength of the plane structure |
| C．the amount of air in the plane |
| D．the power of the airplane engines |
What will happen to the plane under the “tank test”?
| A．It will be broken. |
| B．It will be made stronger. |
| C．It will be filled with water. |
| D．It will be tested by pilots. |
According to the text, why are test flights most dangerous?
| A．The engines may be damaged. |
| B．The pilot may lose control of the plane. |
| C．The plane may explode in the air. |
| D．Too much air may get into the plane. |
What might be the most suitable title for the text?
| A．Two Important Tests on Airplanes |
| B．The Danger of Testing Airplanes |
| C．The Importance of Flying Safely |
| D．How Airplanes Are Made and Tested |
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