A device that stops drivers from falling asleep at the wheel is about to undergo testing at Department of Transport laboratories and could go on sale within 12 months.
The system,called driver Alert,aims to reduce deadly road accidents by 20%—40% that are caused by tiredness.Airline pilots can also use it to reduce the 30% of all pilot-error accidents that are related to fatigue.
Driver Alert is based on a computerized wristband.The device,worn by drivers or pilots gives out a sound about every four minutes during a car journey.After each sound the driver must respond by squeezing the steering wheel(方向盘).A sensor in the wristband detects this pressing action and measures the time between the sound and the driver’s response.
Tiredness is directly related to a driver’s response time.Usually,a watchful driver would take about 400 milliseconds to respond,but once that falls to more than 500 milliseconds,it suggests that the driver is getting sleepy.
In such cases the device gives out more regular and louder sounds,showing that the driver should open a window or stop for a rest.If the driver’s response continues to slow down,the sounds become more frequent until a nonstop alarm warms that the driver must stop as soon as possible.
The device has been delivered to the department’s laboratories for testing.If these tests,scheduled for six months’ time,are successful,the markers will bring the product to market within about a year.
According to the text,Driver Alert ______.
A.aims to reduce tiredness-related accidents |
B.has gone through testing at laboratories |
C.aims to prevent drivers from sleeping |
D.has been on sale for 12 months |
How should a driver respond to the sounds from Driver Alert?
A.By sounding a warning |
B.By touching the wristband |
C.By checking the driving time |
D.By pressing the steering wheel |
We can learn from the text that the driver needs to stop for a break when his response time is ______.
A.About 400 milliseconds |
B.below 500 milliseconds |
C.over 500 milliseconds |
D.about 400 minutes |
When the driver gets sleepy while driving,Driver Alert ______.
A.moves more regularly |
B.stops working properly |
C.opens the window for the driver |
D.sounds more frequently and loudly |
The Japanese economy is at a standstill,Japan ’ s government has said, as concerns about the
strong yen(曰元)continue to grow. The recovery in the economy was “pausing",the CabinetOffice said in a monthly statement.
It is the most negative that the government has been about the economy in nearly two years.The rising yen and a slowdown in global demand for Japanese exports were blamed for the setback.In recent months, the government has insisted that the economy is “picking up". But it saidit now expected the economy to Femain weak for some time, with “weakening" exports a chiefconcern. It said shipments to Asia in particular were becoming weaker, further hitting exportersthat are already suffering from the strong yen.
The yen remains near a 15 - year high against the US dollar, despite the financial interfer-ence (干预)in the currency markets last month for the first time in six years.
Japanese Prime Minister Naoto Kan(菅直人)has also passed a $ 63 billion stimulus(剌激)package in an effort to protect exporters who have seen the poor exchange rate eat into their prof-its. At the close of markets in Tokyo,the yen was trading at 81.44 yen to the dollar, just off thehigh of 81.27 yen.
"If the economy turns out as expected, we may end up describing the current situation as asoft patch,” one of die government officials said ’ “ But if it comes under further downwardpressure, it could end up slipping into recession(衰退).”
The Japanese government think the current bad economy situation is partly due to.
A.the decline of the strong yen | B.the unsatisfactory exports |
C.the government' s mistaken policy | D.the decline in the quality of goods |
In recent months, the government has a(n) attitude towards the economy situation.
A.shocking | B.negative | C.optimistic | D.aggressive |
From the passage we know the government has taken measures mainly to.
A.protect the foreign markets | B.protect profits of its hitting exporters |
C.monitor the yen exchange rate | D.stimulate domestic demands |
The passage could probably be found in.
A.government white paper | B.a science fiction |
C.a travel journal | D.a newspaper report |
If you intend to apply for admission to this college, you need to .
A.complete your high school studies |
B.go through the online application procedure |
C.attend the exams held by the college |
D.I), visit the college admission advisers |
Once admitted, most of the students can get.
A.student loans | B.part - time jobs |
C.different scholarships | D.free financial support |
The strength of their school learning environment mainly lies in.
A.innovation and teamwork | B.application and school - based |
C.cooperation and competition | D.task - based and school - based |
The advertisement is designed for.
A.US applicants only | B.singaporean students only |
C.international students | D.All potential applicants |
It is commonly believed among many Chinese that Westerners who take “Yes’,and “No” by their facial expressions are more straightforward than Chinese. Normally Westerners don * t have to adopt Chinese ways like sweeping the floor or constantly checking the clock to indicate to a guest that it’ s time to leave. They don’ t have to hesitate in saying “No” when they are not able to, or don’ t want to, offer help to a friend in need. There is no embarrassment attached to this behavior. But it is too simple to conclude that Westerners are more direct speakers than the Chinese.
There are many occasions when the way Westerners express themselves makes Chinese look more straightforward and honest. When I was a fresh international student,the director of our program once asked students in an e-mail what we thought about a young professor. I simply said ’ “She seems to know a lot but doesn* t know how to teach. ” And the director replied with “Thank you for being honest. ”
Only years later when I better understood the new culture,I realized why I had gone too far. If that question were asked now,the reply would have three paragraphs devoted to the qualities of the professor before the last line came out — ” There are some gaps in her teaching method. ” Still tough, but at least it wouldn't be considered rude.
Indeed, the reserved social norms and the deeply - rooted “face issue" make honest speaking risky in China ; Americans have their own ways of being polite. This results partly from political correctness. It also results from several generations of people who have been told they have done well even when they have failed. It may not be unfair to suggest that many Americans are oversensitive and obsessed with a perfect self image.
So,the next time you hear about indirect Chinese,it would be worth challenging the source and pointing out that the cultural comparisons are much more complex. But maybe you should do it in a roundabout way,to be polite.The passage mainly aims to •
A. tell us something about culture distinctions |
B. remind us of the conflicts between cultures |
C. ask us to take positive attitudes to Chinese cultures |
D. keep us informed of the various communications |
According to the passage, the young professor lacked .
A. confidence in her job | |
B. teaching experience | |
C. interaction with her students m |
D.responsibility for her students |
The underlined words “obsessed with" (para.4) probably means .
A.satisfied with | B.proud of | C.addicted to | D.stuck in |
It can be inferred from the passage that .
A. the writer has a good knowledge of American culture |
B. Americans are much more straightforward than Chinese |
C. the new professor was very angry with the writer' s comments |
D. different culture backgrounds make cultures comparison complicated |
A little old couple walked slowly into McDonald ’ s on one cold winter evening. It seemed that
they didn' t come to the right place with the young families and young couples eating that night.
The little old man walked right up to the cash register, placed his order with no hesitation and then paid for their meal. The couple took a table near the back wall and started taking food off the tray. There was one hamburger, one order of French fries and one drink. The little old man unwrapped the plain hamburger and carefully cut it in half. He placed one half in front of his wife. Then he carefully counted out the French fries, divided them in two piles and neatly placed one pile in front of his wife. He took a sip at the drink and then set the cup down between them.
As the man began to eat his few bites of hamburger, the crowd began to get restless. You could tell what they were thinking, “That poor old couple. All they can afford is one meal for the two of them. ”
As the man began to eat his French fries, one young man stood and came over to the old couple ’ s table. He politely offered to buy another meal for the old couple to eat. The old man replied that they were just fine. They were used to sharing everything.
As the little old man finished eating and was wiping his face neatly with a napkin,the young man could stand it no longer. Again he came over to their table and offered to buy some food.
After being politely refused again,he finally asked a question of the little old lady," Ma ’ am, why aren' t you eating? You said that you share everything. What is it that you are waiting for?"
She answered, "The teeth.,’ According to the 1st paragraph, the old couple .
A. enjoyed the scene outside the McDonald' s |
B. didn, t look suitable for the surroundings |
C. loved being with young families and couples |
D. liked the food in McDonald' s |
The little old man cut the plain hamburger in half because .
A. he couldn' t finish eating it with one bite |
B. he was very careful with his food |
C. he ordered more than he could consume |
D. he wanted to share it with his wife |
The young man who offered to buy the old couple food was .
A.impolite | B.stubborn | C.sympathetic | D.doubtful |
From the old lady' s answer, we know that .
A.she was not interested in the food | B.the couple suffered a terrible toothache |
C.the couple did share everything | D.she gave an irrelevant answer |
The African elephant, the largest land animal remaining on earth, is of great importance to African ecosystem(生态系统). Unlike other animals, the African elephant is to a great extent the builder of its environment. As a big plant-eater, it largely shapes the forest- and-savanna(大草原) surroundings in which it lives, therefore setting the terms of existence for millions of other animals that live in its habitat.
It is the elephant’s great desire for food that makes it a disturber of the environment and an important builder of its habitat. In its continuous search for the 300 pounds of plants it must have every day, it kills small trees and underbushes, and pulls branches off big trees. This results in numerous open spaces in both deep tropical forests and in the woodlands that cover part of the African savannas . In these open spaces are numerous plants in various stages of growth that attract a variety of other plant-eaters.
Take the rain forests for example. In their natural state, the spreading branches overhead shut out sunlight and prevent the growth of plants on the forest floor. By pulling down trees and eating plants, elephants make open spaces, allowing new plants to grow on the forest floor. In such situations, the forests become suitable for large hoofed plant-eaters to move around and for small plant-eaters to get their food as well.
What worries scientists now is that the African elephant has become an endangered species. If the elephant disappears, scientists say, many other animals will also disappear from vast areas of forest and savanna, greatly changing and worsening the whole ecosystem. What is the passage mainly about?
A.Disappearance of African elephants. |
B.Forests and savannas as habitats for African elephants. |
C.The effect of African elephants' search for food. |
D.The eating habit of African elephants. |
What does the underlined phrase “setting the terms” most probably mean?
A.Fixing the time. |
B.Worsening the state. |
C.Improving the quality. |
D.Deciding the conditions. |
What do we know about the open spaces in the passage?
A.They result from the destruction of rain forests. |
B.They provide food mainly for African elephants. |
C.They are home to many endangered animals. |
D.They are attractive to plant-eating animals of different kinds. |
According to the passage, which of the following statements is true?
A.The African elephant is the largest animal on earth. |
B.African elephants have 300 pounds of plants every day. |
C.The African elephant is in a way the builder of the environment like all the other land animals. |
D.If the African elephant disappears, the whole ecosystem won’t be affected. |
The passage is developed mainly by .
A.showing the effect and then explaining the causes |
B.pointing out similarities and differences |
C.describing the changes in space order |
D.giving examples |