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．meter

B．meter

C．meter

D．meter

　　Marriage is a covered dish ．

　　Marriage makes or mars a man ．

　　As students in high schools, you may not understand the real meaning of real marriage．But in the near future you will have your own love, marriage and children．The following passage will tell you a story about the students' getting married in a western country．Is it cool?

　　In Mr．Allen's high school class, all the students have to get married．However, the wedding ceremonies (仪式) are not real ones but imitations (模拟)．These ceremonies sometimes become so noisy that the loud laughter 　1　 out the voice of the minister．　2　 the two students getting married often begin to laugh quietly．

　　The teacher, Mr．Allen, believes that marriage is a difficult and 　3　 business．He wants young people to understand that there must be many 　4　 after marriage．He believes that the 　5　 for these psychological and financial adjustments (心理上和经济上的调整) should be understood before people 　6　．

　　Mr．Allen doesn't only 　7　 his students to major problems faced 　8　 marriage such as illness or unemployment．He also lets them know the　9　 problems they will face every day．He wants young people to know about all the difficulties and troubles that can throw marriage to the 　10　 point．He even familiarizes his students with the problems of divorce (离婚) and the 　11　 that divorced men must pay child 　12　 money for their children and sometimes pay monthly money to their 　13　 ．

　　It has been nervous for some of the students to 　14　 the problems that a married couple often faces．　15　 they took the course, they had not felt much 　16　 about the problems of marriage．　17　 , both students and parents feel that Mr．Allen's course is 　18　 and have supported the 　19　 publicly．Their statements and letters supporting the class have made the school more firmly believe that it's necessary to 　20　 the course again．

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阅读理解

阅读下列短文，从每题所给四个选项(A，B，C和D)中，选出最佳选项．

　　Is it possible to persuade mankind to live without war? War is an ancient custom which has existed for at least six thousand years. It was always bad and usually foolish. But in the past the human race managed to live with it. Modem cleverness has changed this. Either man will abolish(毁灭) war, or war will abolish man. For the present, it is nuclear (核的) weapons that cause the most serious danger, but bacteriological (细菌的) or chemical weapons may, before long, offer an even greater threat. If we succeed in abolishing nuclear weapons, our work will not be done. It will never be done until we have succeeded in abolishing war. To do this, we need to persuade mankind to look upon international questions in a new way, not as contests of forces, in which the victory goes to the side which is most skillful in killing people, but by arbitration(仲裁) in agreement with agreed principles (规则) of law. It is not easy to change very old mental habits, but this is what must be attempted.

　　It has become a common place that nuclear war must be avoided. Of course very difficult problems remain in the world, but the spirit in which they are being approached(接近)is a better one than it was some years ago. It has begun to be thought, even by the powerful men who decide whether we shall live or die, that negotiations (谈判) should reach agreements even if both sides do not find these agreements wholly satisfactory. It has begun to be understood that the important conflict(冲突) nowadays is not between different countries, but between man and the atom bomb.

1．This passage implies that war is now ________.

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2．The underlined phrase“To do this”refers to “________”.

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3．According to the writer, ________.

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A．war is the only way to solve international disputes

B．war will be less dangerous because of the improvement of weapons

C．it is possible for pelple to live without war

D．war must be abolished if man wants to survive

4．The last paragraph suggests that ________.

[　　]

A．international agreements can be reached more easily now

B．man begins to realize the danger of nuclear war

C．nuclear war will not take place

D．world opinion welcomes nuclear war