游客
题文

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
科目 英语   题型 阅读理解   难度 中等
登录免费查看答案和解析
相关试题

China news, Beijing, Feb. 9 – Housing price in China has always aroused heated discussions among property developers and ordinary Chinese. To many property developers and local government officials, housing price in China is still low compared with many developed countries. However, the average housing price in the United States is only 8,000 yuan per square meter, while in China, it is even higher than in the United States. This shows that there are some bubbles(泡沫) in Chinese real estate market, the International Finance News reported.
Although the average price of residential houses in the United States, after converted to Renminbi, is about 8,000 yuan per square meter, the houses in US are not sold in terms of building area, as most Chinese property developers do when they sell their houses. If US property developers sell their houses according to the building area, then the housing price will be even lower than 8,000 yuan per square meter. In most big Chinese cities, such as Beijing, Shanghai, and Shenzhen, houses are sold at a price even higher than those in the US.
The high housing sales price in large cities in China proves that Chinese real estate market does have some bubbles. Moreover, Chinese houses can not be compared with houses in US in terms of building quality, environment and supporting facilities. Furthermore, it should be noted that American people’s average income is several dozen times higher than that of Chinese people. How can the Chinese afford to buy a house which is even more expensive than that sold in US?
At the beginning of 2007, Chinese government issued a set of policies that aimed to benefit the public. Now in order to reduce the high housing prices, the government can regulate(控制) the real estate market by raising tax on property industry and controlling the release of loans and lands to property developers. At the same time, the government should allow people to build more houses through various fund-raising channels, such as funds collected from buyers or raised by working units. By applying these multiple means, it is expected that the high housing prices can be lowered.
What is the average housing price per square meter in China?

A.8000 yuan B.10000 yuan C.7000 yuan D.It’s not mentioned here

Which of the following does NOT support the idea that the average housing price in China is even higher than in the United States?

A.Chinese houses can not be compared with houses in US in terms of building quality,environment
and supporting facilities.
B.American people’s average income is several dozen times higher than that of Chinese people.
C.The houses in US are not sold in terms of building area, as most Chinese property developers do
when they sell their houses.
D.There are more people who need houses in China.

What is the main idea of this passage?

A.The housing price in China is so high that the government should do something useful to prevent it.
B.There are some bubbles in Chinese real estate market
C.The average housing price in China is even higher than in the United States
D.Chinese government issued a set of policies that aimed to benefit the public.

How many measures are mentioned in the last paragraph in order to reduce the high housing prices?

A.Four B.Three C.Five D.Two

Dear Cassy,
Thanks for reminding me by e-mail that you want to baby-sit our children. In spite of the fact that you are only 15 years old, my wife and I would be willing to consider your application if you can meet a few modest requirements:
1. Submit three letters from teachers who will prove that you have never failed to follow directions perfectly in class and never failed to hand in the homework on time.
2. Submit a note from two doctors which says that you are in perfect health, have never been sick, and never will be sick.
3. Submit a document (文件) from your physical education teacher or team coach that proves that you can do each of the following: Run two miles in less than nine minutes, climb an oily rope to a height of twenty feet in thirty seconds while balancing a glass of water on your nose, and walk in bare feet over hot coals and broken glass without complaint or injury.
4. Submit letters from at least two mental health experts saying that you have never had a bad thought towards any living being or not living object.
5. Play and defeat five expert chess players with your eyes covered after going without sleep for 48 hours.
6. Wait patiently for two years while we make sure that all your documents are true.
Your loving and trusting friends,
The Smiths
From the letter we can know that ______.

A.Cassy wrote to the Smiths twice B.Cassy loves children very much
C.Cassy will be in perfect health D.Cassy does very well in her studies

Which of the following can most probably replace the underlined word “submit”?

A.write B.report C.hand in D.recommend (推荐)

What can we infer from this text?

A.Their children are hard to baby-sit. B.Their children are well educated.
C.Cassy is good at doing many things. D.Cassy won't get the job as a baby-sitter.

Which of the following words can best describe the Smiths?

A.Humorous. B.Patient. C.Honest. D.Kind-hearted.

He only finished fourth in this year's Super Boy talent show. But it didn't stop him capturing (俘获) the hearts of thousands of fans. He can hit high notes with ease. And he is very modest. Zhang Jie,25,shed(流) sweat and tears all the way through the competition, but he never gave up.
“No matter how life treats him, he always fights back bravely ,”said Wu Chunyan, a Senior 2 student in Hubei.“He has never lost his dream of being a singer.”The road to fame is always rocky, and Zhang is no exception. As a college student he was majoring in tourism. He was considering becoming a tourist guide after graduation until he entered a singing competition.
His life changed after he competed in My Show. He won first place and signed with a record company.“I was very excited and regarded it as a way to take me closer to my dream,” he said. But the company gave him little money to make music and slowly began to ignore him. Zhang even borrowed money to buy costumes.“Life has its ups and downs. But the tough (艰难的) reality only makes me stronger,” he said.
He forgot he was once a champion of a talent show and joined Super Boy. His decision got support from his family who worked hard to make ends meet. His mother sold rice noodles on a street in his hometown, but she said she would “support him forever.”
“I have the dream to buy a large house for my parents, where my mom can get a large window sill (窗台) to grow flowers,” said Zhang.
Which of the following is the best title of the passage?

A.An easy way to success B.A rocky path to success
C.A clever boy D.A successful boy

From the passage, we can know that _________.

A.he once won the first place in Super Boy talent show.
B.he finished fourth in My Show.
C.he is an exception on his way to fame.
D.after signing with a record company, he didn’t get much money.

When he met with difficulty in a record company, he decided to _______.

A.join Super Boy B.tell the others he was a champion
C.give up on his way to success D.quarrel with the boss

Before he joined in a singing competition, his dream was to become________.

A.a great scientist B.a good college student
C.a famous singer D.a tourist guide

Not long ago, people thought babies were not able to learn things until they were five or six months old. Yet doctors in the United States say babies begin learning on their first day of life.
Scientists note that babies are strongly influenced by their environment. They say a baby will smile if her mother does something the baby likes. A baby learns to get the best care possible by smiling to please her mother or other caregivers. This is how babies learn to connect and communicate with other human beings.
One study shows that babies can learn before they are born. The researchers placed a tape recorder on the stomach of a pregnant woman. Then, they played a recording of a short story. On the day the baby was born,the researchers attempted to find if he knew the sounds of the story repeated while in his mother. They did this by placing a device in the mouth of the newborn baby.
The baby would hear the story if he moved his mouth one way. If the baby moved his mouth the other way, he would hear a different story. The researchers say the baby clearly liked the story he heard before he was born. They say the baby would move his mouth so he could hear the story again and again.
Another study shows how mothers can strongly influence social development and language skills in their children.
Researchers studied the children from the age of one month to three years. The researchers attempted to measure the sensitivity of the mothers. The women were considered sensitive if they supported their children’s activities and did not interfere unnecessarily. They tested the children for thinking and language development when they were three years old. Also, the researchers observed the women for signs of depression.
The children of depressed women did not do as well in tests as the children of women who did not suffer from depression. The children of depressed women did poorly in tests of language skills and understanding what they hear.
These children also were less cooperative and had more problems dealing with other people. The researchers noted that the sensitivity of the mothers was important to the intelligence development of their children. Children did better when their mothers were caring, even when they suffered from depression.
According to the passage,which of the following is NOT the factor that influences the intelligence development in babies?

A.The environment. B.Mother’s sensitivity.
C.Their peers (同龄人). D.Education before birth.

What is the purpose of the experiment in which newborn babies heard the stories?

A.To prove that babies can learn before they are born.
B.To prove that babies can learn on the first day they are born.
C.To show mothers can strongly influence the intelligence development in their babies
D.To indicate early education has a deep effect on the babies’ language skills.

Which group of children did the worst in tests of language skills?

A.The children of depressed mothers who cared little for their children.
B.The children of women who did not suffer from depression.
C.The children of depressed but caring mothers.
D.Children with high communication abilities.

What is the main idea of the passage?

A.Scientific findings about how babies develop before birth.
B.Scientific findings about how the environment has an effect on babies’ intelligence.
C.A study shows babies are not able to learn things until they are born or six months old.
D.Scientific findings about how intelligence develops in babies.

A handsome middleaged man walked quietly into the cafe and sat down. Before he ordered,he couldn’t help but notice a group of younger men at the table next to him. It was obvious they were making fun of something about him and it wasn’t until he remembered he was wearing a small pink ribbon(丝带) on the lapel of his suit that he became aware of what the joke was all about.
The man pretended not to notice it,but the whisper and laughter began to get to him. He looked one of the rude young men straight into the eye,placed his hand beneath the ribbon and asked,“This?”
With that the young men all began to laugh out loud. The man he spoke to said,“Hey,sorry,man, but we were just commenting on how pretty your little pink ribbon looks against your blue jacket!”
The middleaged man calmly invited the joker to come over to his table, and politely seated him. As uncomfortable as he was, the young guy had to, not really sure why. In a soft voice,the middleaged man said, “I wear this ribbon to bring awareness about breast cancer. I wear it in my mother’s honor.”
“Oh, sorry. She died of breast cancer?”
“No, she didn’t. She’s alive and well. But her breasts nourished me as a baby,and were a soft resting place for my head when I was scared or lonely as a little boy. I’m very grateful for my mother’s breasts, and her health.”
“Umm,” the young replied “yeah.”
“And I wear this ribbon to honor my wife” the man continued.
“And she’s okay, too?”the young guy asked.
“Oh, yes. She’s fine. Her breasts have been a great source of loving pleasure for both of us,and with them she nurtured and nourished our daughter 23 years ago. I’m grateful for my wife’s breasts,and her health.”
“Uh, huh. And I guess you wear it to honor your daughter, also?”
“No. It’s too late to honor my daughter by wearing it now...”
Shaken and ashamed,the young guy said, “Oh, I’m so sorry,mister.”
“So, in my daughter’s memory, too, I proudly wear this little ribbon, which allows me the opportunity to enlighten others. And here...”With this,he reached in his pocket and handed the young man a little pink ribbon. The young guy looked at it, slowly raised his head and asked, “...?”
The young men joked about the middleaged man’s________.

A.looks B.ribbon C.attitude D.clothes

What may have happened to the man’s daughter?

A.She died of breast cancer. B.She was ill with cancer.
C.She had gone abroad. D.She got married.

What will the young man probably ask at the end of the story?

A.May I give it to my mother? B.Can you help me put it on?
C.Will you please forgive me? D.Shall we have some drink together?

What is the best title for the passage?

A.An Unusual Meeting B.An Impressive Lesson
C.Be Grateful to Your Beloved D.A little Pink Ribbon

Copyright ©2020-2025 优题课 youtike.com 版权所有

粤ICP备20024846号