“Iris scan (虹膜扫描), please,” the bank’s computer voice tells you. You step up and the computer reads your eye, comparing it to the stored file it has of your iris. The images had better match---otherwise, you won’t be able to get your money.
Iris scanning and other technologies, such as fingerprint and voice scanning, have appeared in many science fiction movies in the past. Today, these advanced technologies are part of the real world. They are common at work, the bank, the airport, and your local prison. The iris scan, fingerprint scan, and voice scan are all examples of biometrics(生物测定学), a fast developing area of automatic personal identification technology. Basically, biometrics uses various ways to verify a person’s identity, based on the individual’s unique characteristics, including fingerprints, signature, and so on.
Biometrics identification systems have a number of advantages over password systems. The primary advantage is that an individual has to be physically present in order to be identified. Another important advantage is that there are no passwords to remember, forget, lose, or steal.
The voice scan is the simplest and most affordable form of biometrics. It only requires a computer, a microphone, and the correct software. The software records a subject’s voice and then compares it to a stored voice sample for identification purpose.
For additional safety, fingerprint and handprint scans can also be employed. Fingerprint scans take the image of a fingerprint and compare it to a stored file of prints. Handprint scans identify the unique features of a hand.The first paragraph serves as a(n) ________.
A.example | B.explanation |
C.comment | D.conclusion |
The underline word “verify” in Paragraph 2 probably means “________”.
A.protect | B.confirm |
C.develop | D.change |
Which is the most accurate form of biometrics?
A.The voice scan |
B.The fingerprint scan |
C.The iris scan |
D.The facial scan |
What is the author’s attitude towards the future of biometrics?
A.He is uncertain about it. |
B.He feels doubtful about it. |
C.He is worried about it. |
D.He feels hopeful about it. |
What is the author’s purpose in writing the text?
A.To explain the importance of identification technology. |
B.To discuss the potential of biometrics systems. |
C.To introduce the technology of biometrics. |
D.To show the advantages of iris scanning. |
In the US and Britain, the slogan around colleges was “Save water. Shower with a friend.” Now, Wuhan University has come up with another system for the campus bathhouse. It charges students for the amount of time in a shower. Before entering the bathhouse, students pay for the amount of time they want in the shower with cash or their student ID card. The clock starts ticking the minute the tape is turned on. It pauses when a button is pressed for soap. An integrated circuit(IC) card reader at each tap shows the time. No money, no water. The benefits of the new system can be seen with the old system, which charged 1 yuan for each person regardless of time in the shower. The university used about 320 tones of water daily under the old system, but only 160 tons now.
Many students use the new system but opinions on it are divided. Some students say it is bad because bathing had become a sort of race. Many people using it for the first time are not sure how long they need to shower. Some might be embarrassed if their time is up and they’re still covered in soap. They have to ask the bathhouse worker to help them buy extra time.
“It’s a flaw in the system that you can not buy extra time on the ID card,” said Ren, a freshman in Wuhan University. The university is also considering some students’ suggestions that they be allowed to pay after they’ve finished the shower. Not surprisingly, some are complaining about losing the hour shower. But many students say the move helps them develop a water-saving sense.
Without the time limits, most students tended to shower for 30 to an hour in the bathhouse. Some even used the hot water to wash their clothes. “In my experience, 10-20 minutes is enough,” said Dai Zhihua, a third-year student who usually takes 8 minutes. A similar system has been installed in other universities. Shanghai Normal University introduced it at its Fengxiang Campus in September. The bathing fee there is 0.2 yuan per minute. One male student responded by setting a record with a two-minute shower.
According to the passage, which of the following is NOT true?
A.Having finished bathing, the student has to pay for it. |
B.The clock times all through while the student is bathing except when the bather paused for soap. |
C.If money runs out, there will be no water. |
D.Students pay for the amount of time they want in the shower. |
The underlined word “flaw” (Paragraph3) most probably means______.
A.perfection | B.advantage | C.pity | D.fault |
Since the new system has performed, ______ of water can be saved.
A.a quarter | B.one third | C.one half | D.two thirds |
It can be inferred from the passag
e that______.
A.the new operation can solve the water crisis. |
B.The new operation can raise students’ environmental awareness. |
C.a similar operation has been set in other universities. |
D.The univ![]() |
China news, Beijing, July 29 --- 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. 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. Wha
t is the average housing price per square meter in China?
A.8000 yuan. | B.10000 yuan. | C.7000 yuan. | D.Not mentioned. |
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 population who need houses in China is larger than in the United States. |
D.The houses in US are not sold in terms of building area, as most Chinese property developers do when they sell their houses. |
How many measures are mentioned in the last paragraph in order to reduce the high housing prices?
A.One.![]() |
B.Two. | C.Three. | D.Four. |
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. |
Winter-swimming has become popular in Beijing. Three years ago, few people would go swimming in the icy waters, But now there is a Winter-swimming Enthusiast’s club(冬泳爱好者协会)and it has more than 2,000 members. The oldest is 84years old and the youngest in only 7. The members are from all walks of life. They may be workers, peasants, soldiers, teachers, students...
Though it is now the coldest part of the season and the water temperature in the city’s lakes is around 0℃, many winter swimmers still swim in the icy waters, even when it is snowing. They enjoy themselves in the lake, while the people by the side of the lake are wearing heavy clothes.
Why are so many people interested in winter-swimming? Because winter-swimming can be good for one’s health.
Bei Sha is a good example. He is 69,and he once suffered from heart trouble for 26 years. After ten years of winter-swimming he is now in good health. Scientists are now studying the effects of winter-swimming on health.Among the winter-swimmers the oldest man is _______ years older than then youngest one.
A.91 | B.84 | C.77 | D.7 |
Guess what “The members are from all walks of life” means?
A.The members do different jobs at different places. |
B.They come from all parts of Beijing. |
C.They are persons of different ages. |
D.They are men and women, old and young. |
The winter-swimmers are able to swim in the icy waters, even on snowy days because______.
A.They are not afraid of coldness. |
B.They often swim in the icy waters. |
C.They know that they can benefit from it. |
D.winter-swimmers can make people healthy. |
Winter-swimming has become popular in Beijing because_____________.
A.more and more people like to swim Beijing |
B.it is more interesting than swimming in summer |
C.winter-swimmers are brave men |
D.winter-swimmers does a lot of good to one’s health |
What’s the best title for this passage?
A.People in Beijing Like swimming in Winter |
B.Winter-swimming—A Craze in Beijing |
C.People Benefit from Winter-swimming |
D.winter-swimmers Are Brave Men |
You speak, write a letter, make a telephone. Your words carry a message. People communicate with words. Do you think you can communicate without words? A smile on your face shows you are happy or friendly. Tears in your eyes tell others that you are sad.
When you put up your hands in class, the teacher knows you want to say something or ask questions. You shake your head, and people know you are saying "No". You nod and people know you are saying "Yes". Other things can also carry messages. For example, a sign at the bus helps you to know which bus to take. A sign on the door helps you where to go in or out. Have you ever thought that there are a lot of signs around you and that you receive messages from them all t
he time? People can communicate in many other ways. An artist can use his drawing to tell beautiful mountains, about the blue sea and many other things. Books are written to tell about all the wonderful things in the world and also about people and their ideas. Books, magazines, TV, radio and films all help us communicate with others. They can help us to know what is going on in the world and what other people are thinking about.
People communicate ________.
A.with words only | B.in many different ways |
C.in letters and drawings | D.with smiles, tears and hands |
Signs can carry as many _________ as words.
A.questions | B.examples | C.tears and smiles | D.messages |
Which of the following is not talked in the passage as which can help us communicate?
A.books and magazines | B.TV and films | C.newspapers | D.radio |
Communication is important because it can help people to ______.
A.understand the world and other people better around us. |
B.teach each other to speak, write, read and draw. |
C.know what other people are thinking about |
D.learn about mountains,blue sea and other things. |
The best title(题目)for this short passage is _________.
A.Signs Carry Messages | B.The important Communication |
C.Words, Signs and Drawing | D.Ways of Communication. |
The word “day” has two meanings. When we talk about the number of days in a year, we are using “day” to mean 24 hours. But when we talk about day and night, we are using “day” to mean the time between sunrise and sunset. Since the earth looks like a ball, the sun can shine on only half of it at a time. Always one half of the earth is having day and the other half night. A place is moved from day into night and from night into day over and over by the spinning(旋转) of the earth. At the equator(赤道) day and night are sometimes the same length. They are each twelve hours long. The sun rises at 6 in the morning and sets at 6 in the evening. For six months the North Pole is tilted(倾斜) toward the sun. In those months the Northern Hemisphere(半球) gets more hours of sunlight than the Southern Hemisphere. Days are longer than nights. South of the equator nights are longer than days. For the other six months the North Pole is tilted away from the sun. Then the Southern Hemisphere gets more sunlight. Days are longer than night. North of the equator nights are longer than days. Winter is the season of long nights. Summer is the season of long days.When the Western Hemisphere is having day, the Eastern Hemisphere is having ______.
A.both day and night | B.day | C.neither day nor night | D.night |
A place is moved from day into night and from night into day over and over by ______ of the earth.
A.the pushing | B.the pulling | C.the spinning | D.the passing |
At the equator day is as long as night ______.
A.sometimes | B.never | C.usually | D.always |
When the North Pole is tilted toward the sun, the Northern Hemisphere gets _____ sunlight.
A.less | B.more | C.all | D.no |
When it is winter in China, ______.
A.the USA is tilted toward the sun |
B.the South Pole is tilted away from the sun |
C.the North Pole is tilted toward the sun |
D.the North Pole is tilted away from the sun |