Johnny Smith was a good math student at a high school. He loved his computer. He came home early every day, then he worked with it till midnight. But Johnny was not a good English student, not good at all. He got an F in his English class. One day after school Johnny joined his computer to the computer in his high school office. The school office computer had the grades of all the students: the math grades, the science grades, the grades in arts and music, and the grades in English. He found his English grade. An F! Johnny changed his English grade from an F to A. Johnny' parents looked at his report card. They were very happy. "An A in English!" said Johnny's Dad. "You're a very clever boy, Johnny."
Johnny is a hacker. Hackers know how to take information from other computers and put new information in. Using a modem(调制解调器), they join their computers to other computers secretly.
School headmasters and teachers are worried about hackers. So are the police, for some people even take money from bank computer account(账户) and put it into their own ones. And they never have to leave home to do it! They are called hackers.
(210w)Johnny changed his English grade with the computer in _______.
| A．the classroom | B．the school office |
| C．a bank near his house | D．his own house |
When Johnny's parents saw the report, they were happy because _______.
| A．Johnny was good at math |
| B．Johnny loved computers |
| C．Johnny could join one computer to another |
| D．they thought Johnny was not poor in English any longer |
Who are worried about hackers in the text?
| A．Johnny's parents. |
| B．School headmasters, teachers and the police. |
| C．The police. |
| D．School headmasters and teachers. |
What should the hackers know well, do you think, after you read this story?
| A．Information. | B．Bank computer accounts. |
| C．Computers. | D．Grades. |
It has always been said that women are not good drivers, because they simply don’t have very good driving ability. On the other hand, most car accidents happen to men; very few happen to women.
From this, we can see that women are much more careful while driving. Another very interesting fact that we should point out is that in the past, women preferred to let their husbands be the only driver in the family rather than have a driving license. Somehow they were prevented from making this step in their lives, but nowadays there are many women that want to pass their driving tests from an early age.
However, we have to admit that men are more skillful drivers than women, but this does not mean that a woman cannot become a good driver by accumulating(积累) experience. So more and more teenagers and women around the age of thirty now want to pass their driving tests. While taking their driving lessons, they also have a number of special lessons with their parents or somebody in the family that has a driving license, this is just to improve their driving abilities and help them to pass the tests more easily.
To conclude, we can say that women are not such bad drivers. They just need more experience than men in order to be able to drive well. And on the other hand, there are a number of women that show better driving skills than the men around them.Compared with the past, nowadays many women ______.
| A．have more accidents while driving | B．prefer to have a driving license |
| C．are somehow prevented from driving | D．are the only driver in the family |
What can we infer from the passage?
| A．Teenage girls cannot take driving tests. |
| B．Men didn’t allow women to drive in the past. |
| C．Women can easily pass their tests by taking driving lessons. |
| D．With enough experience, women can become good drivers. |
The passage mainly talks about ______.
| A．why men are better drivers than women |
| B．men and their driving ability |
| C．women and their driving ability |
| D．why more women like to have a driving license |
How would you like to learn more without having to study more？Here’s how：
1．Get to bed and go to sleep.Your performance，attention，and the ability to concentrate are damaged by lack of sleep.Teenagers need nine to ten hours of sleep a night for best performance.
2．Feed your head.The brain runs badly if it doesn’t get enough fuel.That means protein(蛋白质)and complex carbs (复合碳水化合物)－eggs and wheat bread for breakfast，say，rather than sugary cereal(含糖的麦片粥)and orange juice.The biggest mistake teens make is not to have breakfast or to go for sugar，which raises blood sugar levels.
3．Body exercise is brain exercise.Body exercise really improves brain performance，perhaps because it increases blood flow，or perhaps because it reduces stress and anxiety(焦虑).Twenty minutes of activity a day that raises your heart rate will do great good.
4．Learn now what you want to remember for the rest of your life.Teenage brains are much better at remembering things than the brains of young children or adults.Scientists aren’t sure why.Whatever the reason，the teenage years are the time to learn new languages and master other lifelong skills.
5．Learn the power of risk taking.Adults are always worried about the downside of teenage risktaking，and it’s true that teenagers are more likely than adults to get themselves in trouble by drinking and driving.But the fact that the parts of the brain that drive people to try new，risky，and exciting things appear to be more developed in teenagers can be a huge advantage.Pick certain challenges－difficult sports，a hard job，mastering a performance art，traveling overseas－and the teenage brain is able to deal with them.They have this power they’re given to go out and do it without fear.
6．Learn what you love.Because emotional(情感的)systems develop fast in teenager brains，teenagers learn things they’re interested in quickly and well.Their brains give them tools like attention on the project.According to the passage，teenagers should have for breakfast.
| A．wheat bread and eggs | B．sugar and orange juice |
| C．sugar and bread | D．wheat bread and orange juice |
Body exercise plays a part in all the following EXCEPT .
| A．making people less anxious | B．raising heart rate |
| C．reducing blood pressure | D．reducing stress |
The underlined word “downside” in the passage probably means .
| A．excitement | B．disadvantage |
| C．benefit | D．power |
It can be learned from the passage that .
| A．teenagers learn quickly when they are fond of something |
| B．teenagers should be forbidden to drive |
| C．scientists know why teenagers have a good memory |
| D．teenagers need less sleep than adults |
ABOUT LIPITOR
Lipitor is a prescription medicine. Along with diet and exercise, it lowers "bad" cholesterol(胆固醇) in your blood. It can also raise "good" cholesterol.
Lipitor can lower the risk of heart attack in patients with several common risk factors, including family history of early heart disease, high blood pressure, age and smoking.
WHO IS LIPITOR FOR?
Who can take LIPITOR:
· People who cannot lower their cholesterol enough with diet and exercise.
· Adults and children over 10.
Who should NOT take LIPITOR:
· Women who are pregnant, may be pregnant, or may become pregnant. Lipitor may harm your unborn baby.
· Women who are breast-feeding. Lipitor can pass into your breast milk and may harm your baby.
· People with liver problems.
POSSIBLE SIDE EFFECTS OF LIPITOR
Serious side effects in a small number of people:
· Muscle problems that can lead to kidney problems, including kidney failure.
· Liver problems. Your doctor may do blood tests to check your liver before you start Lipitor and while you are taking it.
Call your doctor right away if you have:
· Unexplained muscle pain or weakness, especially if you have a fever or feel very fired.
· Swelling of the face, lips, tongue, and/or throat that may cause difficulty in breathing or swallowing.
· Stomach pain.
Some common side effects of LIPITOR are:
· Muscle pain.
· Upset stomach.
· Changes in some blood tests.
HOW TO TAKE LIPITOR
DO:
· Take Lipitor as prescribed by your doctor.
· Try to eat heart-healthy foods while you take Lipitor.
· Take Lipitor at any time of day, with or without food.
· If you miss a dose, take it as soon as you remember. But if it has been more than 12 hours since you missed dose, wait. Take the next dose at your regular time.
Don't:
· Do not change or stop your dose before talking to your doctor.
· Do not start new medicines before talking to your doctor. What is a major function of Lipitor?
| A．To help quit smoking. | B．To control blood pressure. |
| C．To improve unhealthy diet. | D．To lower "bad" cholesterol. |
If it has been over 12 hours since you missed a dose, you should ________.
| A．change the amount of your next dose |
| B．eat more when taking your next dose |
| C．have a dose as soon as you remember |
| D．take the next dose at your regular time |
Which of the following is a common side effect of taking Lipitor?
| A．Face swelling. | B．Upset stomach. |
| C．Kidney failure. | D．Muscle weakness. |
What is the main purpose of the passage?
| A．To teach patients ways for quick recovery. |
| B．To present a report on a scientific research. |
| C．To show the importance of a good lifestyle. |
| D．To give information about a kind of medicine |
Ever wonder how much a cloud weighs? What about a hurricane? A meteorologist has done some estimates and the results might surprise you.
Let's start with a very simple white puffy cloud — a cumulus cloud（积云）. How much does the water in a cumulus cloud weigh? Peggy LeMone, senior scientist at the National Center for Atmospheric Research in Boulder, Colorado, did the numbers. "The water in the little cloud weighs about 550 tons," she calculates. "Or if you want to convert it to something that might be a little more meaningful … think of elephants."
The thought of a hundred elephants-worth of water suspended in the sky begs another question — what keeps it up there?
"First of all, the water isn't in elephant sized particles（微粒）, it's in tiny tiny tiny particles," explains LeMone. And those particles float on the warmer air that's rising below. But still, the concept of so much water floating in the sky was surprising even to a meteorologist like LeMone. "I had no idea how much a cloud would weigh, actually, when I started the calculations," she says.
So how many elephant units of water are inside a big storm cloud—10 times bigger all the way around than the "puffy" cumulus cloud? Again, LeMone did the numbers: About 200,000 elephants.
Now, ratchet up the calculations for a hurricane about the size of Missouri and the figures get really massive. "What we're doing is weighing the water in one cubic meter theoretically pulled from a cloud and then multiplying by the number of meters in a whole hurricane," she explains.
The result? Forty million elephants. That means the water in one hurricane weighs more than all the elephants on the planet. Perhaps even more than all the elephants that have ever lived on the planet. The weight of is NOT mentioned in the passage.
| A．a cumulus cloud | B．a tornado | C．a hurricane | D．a storm cloud |
How did Peggy LeMone feel about the result of her calculations?
| A．She found it not convincing. |
| B．She thought it needed further calculations. |
| C．She was quite surprised at it. |
| D．She considered the calculations inaccurate. |
What can be inferred from the passage?
| A．A storm cloud weighs about 200,000 elephants. |
| B．The water in a hurricane weighs more than that in any other kind of cloud. |
| C．There are less than forty million elephants living on the earth. |
| D．The water in the cloud is in very tiny partials. |
Competition. It’s a simple word, yet a very complex word that covers many angles when it comes to how gasoline prices are determined. It seems so easy to explain, but don’t let that trick you—it’s incredibly difficult to explain and adequately understand.
Say you’re on a Sunday afternoon drive, and notice a gas station near you charging $3.50. Down the road a few miles, that price could easily be 10 or more cents higher or lower. The question is “how” or “why” is that? Think of it this way. Are you more likely to get a better deal on a car if there are two similar car dealers next to each other? Perhaps, because the dealers are too close. Say there is a third similar car dealer miles away. Is he going to be at the same level of competition and sell his cars for the same price as the two dealers next to each other? Likely not. He may charge more or less. Maybe people don't know there are two other dealers down the road. Maybe the dealer is almost outside of the city and the land value isn't as high, so his taxes aren't as high.
These situations do take place at gas stations. And more factors can impact what a station will charge. Timing can greatly impact what price a station charges as well! Many motorists fail to realize that the price a station pays for gasoline changes daily. If one station gets lucky and buys gas on Monday and the cost goes up Tuesday, the station that bought on Monday doesn’t necessarily have to raise prices like the station that bought on Tuesday. Maybe the station that got caught buying for a higher price on Tuesday will pass that higher cost on by raising its gas price.
Perhaps the difference is what brand the station is---branded stations usually pay a slightly higher cost for their gasoline. In return for paying a higher cost, those stations are guaranteed first supply in case of emergency situations. Independent stations don’t pay as much, but aren’t guaranteed supply.
While competition sounds easy to understand, there are always a large number of factors that could influence what one station charges. Keep in mind how many variables there are next time you fill up.What could be the best title for the passage?
| A．How Competition Impacts Gas Prices |
| B．Gas Prices Go Up or Down |
| C．Competition---a Very Complex Word |
| D．We Can’t Stress Enough the Need for Competition |
The example of car dealers is used to show _________.
| A．car prices are determined by car dealers |
| B．location is an important factor in pricing |
| C．the quality of service matters most |
| D．dealing strategy should be flexible |
The gas prices of a station always change partly because _________.
| A．a gas station always wants to charge more |
| B．the gasoline is in great demand |
| C．the cost of the gas the station buys varies daily |
| D．gas is in greater need on Monday |
According to the passage, branded stations _________.
| A．spend less money on their gasoline |
| B．have more staff than independent stations |
| C．charge less for high quality oil |
| D．offer a steady oil supply |
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