Simply by analyzing a drop of blood, a doctor will be able to diagnose a birth defect or even cancer when it is in the early stage; using new technology, a material lighter but much stronger than steel can be produced.

These may sound like dreams at present. But the dreams may soon come true as research findings in laboratories are being turned into products more rapidly in the new century, according to experts participating in the fourth Asia-Pacific Economic Cooperation (APEC) Technomart, a technology exhibition and trade fair in Suzhou.　　

"Most people think nano-technology（纳米技术）is too far-fetched to be real. But in fact nano-technology has been applied in a wide range of fields, such as medicine. It is coming into our daily life," said Cheng Jiachong from a Hong Kong-based nano-technology firm.

Nano-technology based on the nanometer, the unit of which is a billionth of a meter, enables scientists to have new concepts of disease diagnosis and treatment on a molecular（分子）and atomic scale, Cheng said.　　

By using nanometer particles, a doctor can separate the fetus cells（胚胎细胞）from the blood of a pregnant woman to see if the development of the fetus is normal. This method is also being used in the early diagnosis of cancer and heart disease, he said.　　

One of the most significant impacts of nano-technology is at the bio-inorganic materials interface, according to Greg Tegart, executive advisor of the APEC Center for Technology Foresight.　　

"By combining enzymes（酶）and silicon chips we can produce biosensors. These could be implanted in humans or animals to monitor health and to deliver corrective doses（剂量）of drugs," he told the participants a technology forum during the exhibition.　　

"Nano-technology could affect the production of nearly every man-made object, from automobiles, tires and computer circuits（电路）, to advanced medicines and tissue replacement, and lead to the invention of objects yet to be imagined," said David Minns, a special advisor to the National Research Council of Canada.　　

It has been shown that carbon nano-tubes are ten times as strong as steel, with one sixth of the weight, and nano-scale systems have the potential to make supersonic transport cost- effective and to increase computer efficiency by millions of times, he said.

The experts agreed that the APEC technology exhibition and trade fair provided many chances for exchanges of innovative ideas and products.

1.Realization of the dreams mentioned in the first paragraph will mainly base on ________.

A. APEC                              B. Chinese scientist   

C. the APEC Center for Technology Foresight     D. Nano-technology

2.The length of a nanometer equals to ______.

    A.  meter         B.  meter      C.  meter        D.  meter

3. We can imply from what David Minns said that _________.

A. Nano-technology could only be used to invent new objects.

B. Nano-technology could be widely used to produce or invent objects.

C. Nano-technology is a money-consuming technology.

D. Nano-technology can not be used to improve the service of Internet.

4. Compared to steel, carbon nano-tubes are ________.

A. stronger and lighter      B. lighter but as strong

C. stronger but as light                                     D. poor in quality

 

Simply by analyzing a drop of blood, a doctor will be able to diagnose a birth defect or even cancer when it is in the early stage; using new technology, a material lighter but much stronger than steel can be produced.
These may sound like dreams at present. But the dreams may soon come true as research findings in laboratories are being turned into products more rapidly in the new century, according to experts participating in the fourth Asia-Pacific Economic Cooperation (APEC) Technomart, a technology exhibition and trade fair in Suzhou.　　
"Most people think nano-technology（纳米技术）is too far-fetched to be real. But in fact nano-technology has been applied in a wide range of fields, such as medicine. It is coming into our daily life," said Cheng Jiachong from a Hong Kong-based nano-technology firm.
Nano-technology based on the nanometer, the unit of which is a billionth of a meter, enables scientists to have new concepts of disease diagnosis and treatment on a molecular（分子）and atomic scale, Cheng said.　　
By using nanometer particles, a doctor can separate the fetus cells（胚胎细胞）from the blood of a pregnant woman to see if the development of the fetus is normal. This method is also being used in the early diagnosis of cancer and heart disease, he said.　　
One of the most significant impacts of nano-technology is at the bio-inorganic materials interface, according to Greg Tegart, executive advisor of the APEC Center for Technology Foresight.　　
"By combining enzymes（酶）and silicon chips we can produce biosensors. These could be implanted in humans or animals to monitor health and to deliver corrective doses（剂量）of drugs," he told the participants a technology forum during the exhibition.　　
"Nano-technology could affect the production of nearly every man-made object, from automobiles, tires and computer circuits（电路）, to advanced medicines and tissue replacement, and lead to the invention of objects yet to be imagined," said David Minns, a special advisor to the National Research Council of Canada.　　
It has been shown that carbon nano-tubes are ten times as strong as steel, with one sixth of the weight, and nano-scale systems have the potential to make supersonic transport cost- effective and to increase computer efficiency by millions of times, he said.
The experts agreed that the APEC technology exhibition and trade fair provided many chances for exchanges of innovative ideas and products.
【小题1】Realization of the dreams mentioned in the first paragraph will mainly base on ________.

A．APEC	B．Chinese scientist
C．the APEC Center for Technology Foresight	D．Nano-technology

【小题2】The length of a nanometer equals to ______.

A．meter

B．meter

C．meter

D．meter

【小题3】We can imply from what David Minns said that _________.

A．Nano-technology could only be used to invent new objects.

B．Nano-technology could be widely used to produce or invent objects.

C．Nano-technology is a money-consuming technology.

D．Nano-technology can not be used to improve the service of Internet.

【小题4】Compared to steel, carbon nano-tubes are ________.

A．stronger and lighter	B．lighter but as strong
C．stronger but as light	D．poor in quality

阅读理解

　　Over the past 10 years, technologies that have combined computers with telephone have developed. Technologies such as PC fax programs and LAN fax severs(局域网传真服务器) have been used to improve fax communications. The latest computer-based technologies are new mechanisms(机制) which use IP( Internet Protocol, 因特网协议) to send faxes, that is, IP fax.

　　Traditional fax has a fairly simple usage model. First, the user inserts a document into the fax machine, enters the destination fax number and presses the start button on the machine. The sending machine dials the receiving fax machine. If it connects, the sending machine scans the documents and sends it over the public switched telephone network ( PSTN ,公共电话交换网) to the receiving machine . At the same time, the receiving machine receives the document and then prints it. In 1P fax system there are two basic transmission modes: store-and-forward mode and real-time mode. Store-and-forward mode has been widely used. In this mode, the entire document is sent to a network-based server that stores it and then sends it to the destination. Real-time IP faxing is similar to traditional fax. Real-time mode allows two fax machines to directly communicate through some standard.

　　IP fax enables a fax document to be sent from one person to another. A fax machine or a computer can be used to send or receive the fax. IP fax also allows e-mail to be used to receive faxes. This would enable users to receive faxes anywhere, anytime with an Internet fax address.

1．The passage deals mainly with ________.

[　　]

A．PC fax

B．IP fax

C．information technology

D．new machines

2．In traditional fax, ________ can be used.

[　　]

A．even computers

B．LAN fax servers

C．e-mail

D．only fax machines

3．IP fax can use all of the following to send and receive a fax except ________.

[　　]

A．a fax machine

B．a receiving machine

C．a computer

D．e-mail

4．In real-time II' fax mode ________.

[　　]

A．two fax machines communicate directly

B．a network-based server is used

C．users can receive faxes anywhere

D．the PSTN has to be used

5．In paragraph 2 , the word “inserts” can be replaced by ________.

[　　]

　　The term best man came from Scotland． It was first used in the 1700s． But the custom of having a best man at a wedding goes back much further． It is thought to have started in the days of marriage by capture． A man might seize the bride of his choice and carry her off by force． He would take a faithful friend with him to help fight off the attacks of the girl's family．

　　Then as now, bridesmaids were female friends of the bride． They used to help, or pretend to help, to keep the bride from being carried off by the groom and his best man．

1．The term best man was first used in_______．

A． the 1800s B． Wales C． Scotland D．Both A and, B

2．The custom of having a best man began_______．

A．before the term was used B．in the days of marriage by capture

C．after the 1700sD．Both A and B

3．Which did the groom probably do last?

A．He asked a friend to go with him． B．He chose a bride．

C．He escaped with his bride．　　D．He went with his friend to the bride's home．

4．The story suggests that the bride's family tried to________．

A．prepare a good wedding feast B．keep the groom from capturing the bride

C．help the groom and best man escape D． steal the best man's money

5．Sometimes the bridesmaids didn't try very hard to________．

A．protect the bride B．be on time C．march in step D． catch the flowers

6．The story says nothing about the actions of the_______．

A． groom B． bride C． bride's family D． bridesmaids