Maybe ten-year-old Elizabeth put it best when she said to her father, "But, Dad, you can't be healthy if you're dead."
Dad, in a hurry to get home before dark so he could go for a run, had forgotten to wear his safety belt-- a mistake 75% of US population make every day. The big question is why.
There have been many myths (神化,虚构的事) about safety belt ever since their first appearance in cars some forty years ago. The following are three of the most common.
Myth the Number One: It's best to be "thrown clear" of a serious accident.
Truth: Sorry, but any accident serious enough to "throw you clear" is able going to be serious enough to give you a very bad landing. And chances are you'll have traveled through a windshield (挡风玻璃)or door to do it. Studies show that chances of dying after a car accident are twenty-five times in cases where people are "thrown clear".
Myth Number Two: Safety-belts "trap" people in cars that are burning or sinking in water.
Truth: Sorry again, but studies show that people knocked unconscious due to not wearing safety belts have a greater chance of dying in these accidents. People wearing safety belts are usually protected to the point of having a clear head to free themselves from such dangerous situation, not to be trapped in them.
Myth Number Three: Safety belts aren't needed at speeds of less than 30 miles per hour (mph).
Truth: When two cars traveling at 30 mph hit each other, an unbelted driver would meet the windshield with a force equal to diving headfirst into the ground from a height of 10 metres. Why did Elizabeth say to her father, "But, Dad, you can't be healthy if you're dead"?
| A．He didn't have his safety belt on. |
| B．He was running across the street. |
| C．He was driving at great speed. |
| D．He didn't take his medicine on time. |
he reason father was in a hurry to get home was that he __________.
| A．wasn't feeling very well | B．hated to drive in the dark |
| C．wanted to take some exercise | D．didn't want to be caught by the people |
According to the text, to be "thrown clear" of a serious accident is very dangerous because you ________.
| A．may be knocked down by other cars. |
| B．may get serious hurt thrown out of the car |
| C．may find it impossible to get away from the seat |
| D．may get caught in the car door |
Some people prefer to drive without wearing a safety belt because they believe _______.
| A．they will be unable to think clearly in an accident |
| B．the belt prevents them from escaping in an accident |
| C．they will be caught when help comes |
| D．cars catch fire easily |
What is the advice given in the test?
| A．Never drive faster than 30 miles an hour. |
| B．Try your best to save yourself in a car accident. |
| C．Drive slowly while you're not wearing a safety belt. |
| D．Never forget to wear the safety belt while driving. |
It is a matter of common observation that although money income keeps going up over the years, we never seem to become richer. Prices are rising continuously. This condition is what we call inflation: the money supply is becoming inflated so that each unit of it becomes less valuable. We have got used to higher and higher rates of inflation in recent years. What could be bought twenty years ago for one pound now costs well over 2 pounds. And at present this rate of inflation seems to be rising rather than falling. If in the real world our money incomes go up at the same rate as prices do. One might think that inflation doesn’t matter. But it does .When money is losing value it also loses one of the qualities of a good money—stability（稳定）of value. It is no longer acceptable as a store of value; and it becomes an unsuitable means of delayed payment. Nobody wants to hold a wasting possession, so people try to get rid of money as quickly as possible. Inflation therefore simply simulates（刺激）our spending and discourages saving.From the passage we can know that inflation is a situation in which________.
| A．everyone’s incomes rise |
| B．money will hold its value |
| C．we can watch our money grow |
| D．money constantly loses its value |
In the writer’s view, if incomes and prices rise at the same rate, ________.
| A．inflation may still be a problem |
| B．we have nothing to worry about |
| C．inflation is no longer a problem |
| D．we will become richer and richer |
Under inflation people are likely to ________.
| A．go to the bank more often than usual |
| B．save more money since their incomes rise |
| C．spend money quickly rather than to save it |
| D．keep money at home instead of going to banks |
We can conclude according to the passage that ________.
| A．the writer is a government official |
| B．the writer is worried about inflation |
| C．the writer encourages people to spend money |
| D．the writer has become richer because of inflation |
Clay Wanner began to gather a group of architects in Las Vegas a few years ago，to ask them what it would take to design a public school that used 50 percent less energy, cost much less to build and obviously improved student learning. “I think half of them fell off their chairs, ” Wanner says.
Wanner manages school facilities (设施) for Clark County, Nevada，a district roughly the size of Massachusetts. By 2018,143,000 additional students will enter the already crowded public education system. Wanner needs 73 new schools to house them. Four architecture teams have nearly finished designing primary school prototypes (样品)；they plan to construct their schools starting in 2009. The district will then assess how well the schools perform, and three winners will copy those designs in 50 to 70 new buildings.
Green schools are appearing all over, but in Clark County，which stands out for its vastness, such aggressive targets are difficult because design requirements like more natural light for students go against the realities of a desert climate. “One of the biggest challenges is getting the right site orientation(朝向) ,” Mark McGinty, a director at SH Architecture, says. His firm recently completed a high school in Las Vegas. “You have the same building, same set of windows, but if its orientation is incorrect and it faces the sun, it will be really expensive to cool.”
Surprisingly, the man who is responsible for one of the most progressive green-design competitions has doubts about ideas of eco-friendly buildings. “I don’t believe in the new green religion，” Wanner says.“Some of the building technologies that you get are impractical. I’m interested in those that work. ”But he wouldn’t mind if some green features inspire students. He says he hopes to set up green energy systems that allow them to learn about the process of harvesting wind and solar power. “You never know what’s going to start the interest of a child to study math and science，”he says.How did the architects react to Wanner’s design requirements?
| A．They lost balance in excitement. | B．They expressed little interest. |
| C．They showed strong disbelief. | D．They burst into cheers. |
Which order of steps is followed in carrying out the project?
| A．Design—Prototype—Assessment—Construction. |
| B．Design—Assessment—Prototype—Construction. |
| C．Assessment—Design—Prototype—Construction. |
| D．Assessment—Prototype—Design—Construction. |
What makes it difficult to build green schools in Clark County?
| A．The large size. | B．Limited facilities. |
| C．Poor natural resources. | D．The desert climate. |
What does Wanner think of the ideas of green schools?
| A．They are out of date. | B．They are questionable. |
| C．They are advanced. | D．They are practical. |
History is rich with 'eureka' moments: scientists from Archimedes to Isaac Newton and Albert Einstein are said to have had flashes of inspiration while thinking about other things. But the mechanisms(机理) behind this psychological phenomenon have remained unclear. A study now suggests that simply taking a break does not bring on inspiration — rather, creativity is fostered by tasks that allow the mind to wander.
The discovery was made by a team led by Benjamin Baird and Jonathan Schooler, psychologists at the University of California, Santa Barbara. The researchers presented 145 undergraduate students with two 'unusual uses' tasks that gave them two minutes to list as many uses as possible for everyday objects such as toothpicks, clothes hangers and bricks.
After the two minutes were over, participants were given a 12-minute break, during which they rested, undertook a demanding memory activity that required their full attention or engaged in an undemanding reaction-time activity known to elicit mind-wandering. A fourth group of students had no break. All participants were then given four unusual-uses tasks, including the two that they had completed earlier.
Those students who had done the undemanding activity performed an average of 41% better at the repeated tasks the second time they tried them. By contrast, students in the other three groups showed no improvement.
“We’ve traditionally found that rapid-eye-movement sleep grants creative insight. That allowing the mind to wander does the same is absolutely fascinating. I think they are on to something really interesting here, ” says Sara Mednick, a psychologist at the University of California, Riverside.
Participants who engaged in the undemanding task did not do any better than others on unusual-uses tasks that they encountered for the first time in the second round. “The implication (暗示) is that mind-wandering was only helpful for problems that were already being mentally chewed on. It didn’t seem to lead to a general increase in creative problem-solving ability, ” says Baird.
As well as revealing that breaks on their own do not encourage creative thinking, Baird’s work suggests an explanation for one of psychology’s great mysteries: why we zone out.
From an evolutionary perspective, mind-wandering seems totally counterproductive and has been viewed as dysfunctional because it compromises people’s performance in physical activities. However, Baird’s work shows that allowing the brain to enter this state when it is considering complex problems can have real benefits. Zoning out may have aided humans when survival depended on creative solutions.The “eureka” moments in history actually refer to some_________.
| A．sudden inspirations | B．necessary discoveries |
| C．great achievements | D．unexpected results |
Inspiration or creativity, according to this passage, comes about when _________.
| A．your mind is in an “unusual uses” task |
| B．your mind loses itself and hangs about |
| C．you’ve had a break after hard mind work |
| D．you’ve thought about something for long |
The word “zone out”in italics is the nearest in meaning to _________.
| A．dream while sleeping | B．die away in a secret way |
| C．get the solution suddenly | D．be unable to think clearly |
What do the fifth and sixth paragraphs want to state?
| A．Rapid-eye-movement sleep is a high-quality sleep with a creative mind. |
| B．Regular mind-wandering will lead to creative problem-solving ability. |
| C．People who engage in undemanding tasks cannot do unusual-uses tasks well. |
| D．Only those who’ve been thinking about a thing can come across the solution. |
It is the women who have only themselves to blame though they are mercilessly exploited (剥削) year after year. Because they tremble at the thought of being seem in public in clothes that are out of fashion, they are always taken advantage of by the designers and the big stores. Clothes which have been worn only a few times have to be put aside because of the change of fashion. When you come to think of it, only a woman is capable of standing in front of a wardrobe packed full of clothes and announcing sadly that she has nothing to wear.
Changing fashions are nothing more than the intentional creation of waste. Many women spend vast sums of money each year to replace clothes that have hardly been worn. Women who cannot afford to throw away clothing in this way, waste hours of their time altering the dresses they have. Skirts are lengthened or shortened; neck-lines are lowered or raised, and so on.
No one can claim that the fashion industry contributes anything really important to society. Fashion designers are rarely concerned with vital things like warmth, comfort and durability (耐用). They are only interested in outward appearance and they take advantage of the fact that women will put up with any amount of discomfort, as long as they look right. There can hardly be a man who hasn't at some time in his life smiled at the sight of a woman shaking in a thin dress on a winter day, or delicately picking her way through deep snow in high-heeled shoes.
When comparing men and women in the matter of fashion, the conclusions to be drawn are obvious. Do the constantly changing fashions of women's clothes, one wonders, reflect basic qualities of inconstancy and instability? Men are too clever to let themselves be cheated by fashion designers. Do their unchanging styles of dress reflect basic qualities of stability and reliability? That is for you to decide.Designers and big stores always make money _____.
A. by mercilessly exploiting women workers in the clothing industry
B . by constantly changing the fashions in women's clothing
C . because they are capable of predicting new fashions
D . because they attach great importance to quality in women's clothingThe writer would be less critical if fashion designers placed more stress on the ______ of clothing.
| A．cost | B．appearance | C．suitability | D．comfort |
According to the passage, which of the following statements is TRUE? ______________
A . The constant changes in women's clothing reflect their strength of character.
B . New fashions in clothing are created for the commercial exploitation of women.
C . The fashion industry makes an important contribution to society.
D . Fashion designs should not be encouraged since they are only welcomed by women.By saying "the conclusion to be drawn are obvious" (Para 4, Line 1-2), the writer means that ____________.
A. men are more stable and reliable in character
B. men are also exploited greatly by fashion designers
C .women's inconstancy in their choice of clothing is often laughed at
D .women are better able to put up with discomfort
Have you ever noticed the colour of the water in a river or stream after a heavy rainfall? What do you think caused this change in colour? It is soil that has been washed into the river from the riverbank or from the nearby fields.
Components of Soil
Soil is made up of a number of layers, each having its own distinctive colour and texture. The upper layer is known as the litter. It acts like a blanket，limiting temperature changes and reducing water loss. The topsoil layer is made up of small particles of rock mixed with rotten plant and animal matter called humus (腐殖质), which is black and gives the topsoil its dark colour. This layer is usually rich in nutrients, oxygen, and water. Below the topsoil is the subsoil, a layer that contains more stones mixed with only small amounts of organic matter. This layer is lighter in colour because of the lack of humus. Beneath the soil lies a layer of bedrock.
Soil forms from the bottom up. Over time bedrock is attacked by rain, wind, frost, and snow. It is gradually broken down into smaller particles in a process called weathering. Plants begin to grow，and rotten materials enrich the topsoil. Most of the soil in Eastern Canada ，for example ，was formed from weathered rock that was exposed when the ice disappeared 12,000 years ago.
Water Beneath the Soil
Surface water collects and flows above the ground in lakes ，ponds, and rivers. Once in the soil or rock, it is called groundwater. Gravity pulls groundwater through the soil in a process called percolation(渗透). Eventually the water reaches a layer called the water table. Under this is bedrock through which water cannot percolate.
As water percolates downward, it dissolves organic matter and minerals from the soil and carries them to deeper layers.This causes a serious problem because plants require these nutrients for growth.
Soil pH
Soil can be acidic, neutral, or basic. The pH of the soil is determined by the nature of the rock from which it was formed，and by the nature of the plants that grow and rot in it.
The acidity of rain and snow can lower the pH of the groundwater that enters the soil. By burning fossil fuels such as coal ，oil and gasoline，humans have been contributing to higher levels of acidity in many soils. When fossil fuels are burned，gases are released into the air and then fall back to earth as acid rain. Acid soil increases the problem of carrying nutrients to lower soil levels. As nutrients are removed，soil is less fertile. Plants grow more slowly in acidic soil，and also become easily attacked by diseases.The layer of soil that provides necessary nutrients for plant growth is called________.
| A．litter | B．subsoil | C．humus | D．topsoil |
The underlined word “dissolve” is used to express the idea that organic matter and minerals from soil are________.
| A．rushed away into the river |
| B．mixed with water and become part of it |
| C．destroyed and carried away by water |
| D．cleaned and purified by water |
According to the text, which of the following is NOT true?
| A．Soil forms from weathered rock on the earth surface. |
| B．Air pollution is partially responsible for acid soil. |
| C．The deeper layer of soil is darker in colour than the surface soil. |
| D．Groundwater tends to carry away nutrients for plant growth. |
We can infer from the passage that the water table lies________.
| A．between the subsoil layer and bedrock |
| B．in the subsoil layer above bedrock |
| C．between the topsoil layer and the subsoil layer |
| D．in the bedrock layer beneath the subsoil |
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