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

Health food is a general term applied to all kinds of food that is considered more healthy than the types of food sold in supermarkets.For example，whole grains，dried beans，and corn oil are health foods.A narrower classification of health food is natural food.This term is used to distinguish between types of the same food.Raw honey is a natural sweetener，while refined(提炼的)sugar is not.The most exact term of all and the narrowest classification within health food is organic food，used to describe food that has been grown on a particular kind of farm.Fruits and vegetables that are grown in gardens，that are treated only with organic fertilizers，that are not sprayed with poisonous insecticides(杀虫剂)，and that are not refined after harvest，are organic food.

In choosing the type of food you eat，then you have basically two choices：inorganic，processed(加工)food or organic，unprocessed food.A wise decision should include study of the reason why processed food contains chemicals，some of which are proved to be poisonous and that vitamin content is greatly reduced in processed food.

Bread is typically used by health food supporters as an example of a processed food. First, the seeds from which the grain is grown are treated with a chemical which is extremely harmful. Later, the grain is sprayed with a number of very deadly insecticides. After the grain has been made into flour, it is made white with another chemical which is also poisonous. Next, a dough conditioner is added along with a softener. The conditioner and softener are poisons，and in fact, the softener has sickened and killed experimental animals.

A very poisonous antifungal compound is added to keep the bread from getting moldy(发霉的)．

Other food from the supermarket would show a similar pattern of processing and preserving. You see, we buy our food on the basis of smell, color, and texture, instead of vitamin content, and manufacturers give us what we want, even if it is poisonous. The alternative? Eat health foods，preferably the organic variety.

1．What is the passage mainly about?

A．Health food. 　　　　　　　 B．The processing of bread.

C．Processed food. 　　　　　　D．Poisons.

2．What do all of the additives in bread have in common?

A．They are all used to keep the bread from getting moldy.

B．They are all poisonous.

C．They are all organic.

D．They have all killed laboratory animals.

3．What happens to food when it is processed?

A．The basic content remains the same.

B．Vitamin is not available after processing.

C．The vitamin content increases a bit.

D．The vitamin content is greatly reduced.

4．We normally buy food on the basis of________.

A. organic variety 　　　　　　　B. beauty

C. refined contents 　　　　　　　D. smell, color and texture

第三部分阅读理解（共20小题，每小题2分，满分40分）

(A)

Fang Wei had planned to study in Britain for his master's degree,but had to keep putting it off. These days,however,Fang is quite happy about the delay since the exchange rate of the British pound against the RMB has been descending.

“The change means I can save a large sum of money for my studies.” said Fang. “I pay a lot of attention to the pound­to­RMB exchange rate every day now.” Last Tuesday the rate broke the 10­yuan mark for the first time since 2005.

So，what is an exchange rate？

This is the standard term for the comparison of two currencies and tells how much one currency is worth when measured by the other. For example,the pound­to­RMB exchange rate last Wednesday was 9.88，meaning that one pound was worth the same as 9.88 yuan.

But how could this affect our lives？

The exchange rate is important for anyone wanting to travel to or study in a foreign country.

A higher RMB value is good news for Chinese tourists and students. That's because any given amount of RMB can be exchanged for a larger amount of foreign money than with a lower RMB value. It therefore buys more abroad.

For example,according to Chinese agencies that handle study abroad,the cost for university study in Britain used to be around 20,000 pounds a year. At the beginning of 2008，when the pound­to­RMB exchange rate stood at 14,Chinese students had to have 280,000 yuan for a year. But now that the rate has fallen to less than 10 yuan，200,000 yuan is enough for a year in Britain.

However，the stronger yuan may be bad news for Chinese exporters. A rising RMB means that Chinese products are becoming expensive and less attractive on foreign markets.

56.Why did Fang Wei have to put off his study in Britain？

A. Because he didn't have enough money.

B. Because the exchange rate of the pound­to­RMB was too high.

C. Because he didn't get the letter from the university he had applied for.

D. The passage didn't tell us.

57.What's the meaning of the underlined word “descending” in Paragraph 1？

A. Turning down.              B. Putting off.

C. Falling down.                D. Going up.

58.If the pound­to­RMB exchange rate was 12, Fang Wei would have paid 240,000 yuan for a year's study. Now the rate is 9.6，how much can he save if he goes to study in Britain？

A.46,000 yuan.                  B.42,800 yuan.

C.192,000 yuan.                D.48,000 yuan.

59 .When RMB has a higher value in the currency exchange market，the following are right except that 　　　　.

A. it shows we have a strong economic potential

B. it indicates we have a stable political environment

C. it will help our export business

D. it is beneficial for Chinese students and travelers to foreign countries

People with bigger brains ftend to score higher on standardized tests of intelligence， according to new study findings.
However， the study author Dr Michael A.McDaniel of the Virginia Commonwealth University in Richmond emphasized that these findings represent a general trend， and people with small heads should not automatically believe they are less intelligent. For instance， Albert Einstein’s brain was “not particularly large”， McDaniel noted. “There’s some relationship between brain size and intelligence on the average， but there’s plenty of room for exceptions，” he said.
Interest in the relationship between brain size and intelligence grew in the1830s，  when German anatomist(解剖学家) Frederich Tiedmann wrote that he believed there was “an unquestionable connection between the size of the brain and the mental energy displayed by the individual man”. Since that statement， scientists have conducted numerous studies to determine if Tiedmann’s  assertion was， in fact， correct. Most studies have looked into the link between head size and intelligence. More recently， however， researchers have published additional studies on brain size and intelligence， measured using MRI scan(核磁共振成像扫描).
For his study， McDaniel analyzed more than 20 studies that looked into the relationship between brain size and intelligence in a total of 1,530 people. The studies showed that on the average， people with larger brain volume tended to be more intelligent. The relationship between brain volume and intelligence was stronger in women than men， and in adults than in children. McDaniel notes in the journal Intelligence.
McDaniel is not sure why the relationship was stronger for adults and women. “Other research has shown that women， on the average， tend to have smaller brains than men， but score just as well—if not higher—in tests of intelligence，” he said.
McDaniel insisted that the relationship between brain size and intelligence is not a “perfect” one. “One can certainly find lots of examples of smaller-sized people who are highly intelligent，” he said， “But， on the average， the relationship holds.”
【小题1】. What does the text mainly talk about？

     Apparently，we are safe neither at home nor in the business office.We use water in both places，but the research shows that chemicals added to our local water supply to kill harmful bacteria can have unwanted side effects.These chemicals can cause potential harm through drinking and in seemingly harmless activities as cleaning one’s house.They are released(set free)from water by daily actions like water running out of tap，spraying from garden pipes，or splashing in dishwashers and washing machines.As the water is moving.these chemicals are released into the air and then breathed in. Once inside our bodies, they start to affect our health.

　　Does this mean we should stop bathing? No, say the scientists, but we should put all pollution into perspective. Activities at home such as the burning of coal, cooking oil, or even candles release carbon monoxide and particulates such as cigarette ashes which have been proven as harmful to health as working or living near heavy traffic. New tugs, bedding, and even clothing give off that“new smell, ”which is a sure sign of chemicals. In the office, newly applied paint, newly purchased telephones and other telecommunications equipment, and computers release polluting chemicals, too. As offices and homes often have inadequate ventilation (通风), these chemicals can build up to become health problems. Their poisonous effects are only now being slowly recognized.

　　These facts suggest that, at a minimum, proper airing of newly purchased goods with an obvious chemical smell is a wise warning. Home and office windows should be opened during good weather. Even one’s car needs to be ventilated as well while in the garage.

　　We need further research to understand better other potential health dangers, too. For example, the effects of overcrowding of schools (carbon dioxide build-up ), the factory work environment ( an endless list of potentially dangerous substances ), and even home heating and cooling (the air conditioner may be our enemies, not our friends) have only recently started to come to light. Until we understand the effects of our new technological environment better, we can only hope that“there is no place like home.”

1.What is the main idea of the first paragraph?

　　A.The air we breathe in is harmful.

B.Chemicals are released in the running water.

C.Chemicals are added to the drinking water.

　　D. The water in everyday use is unsafe.

2..In Paragraph 2, the underlined sentence means that .

　　A. homes and offices should be aired often

　　B. any pollution should be taken into consideration

　　C. bathing should be done with caution

　　D.we should prevent any pollution from doing harm to us

3.What is the purpose of the passage?

　　A.To call on us to guard our water.

　　B.To show us that no place is like home.

　　C.To make us aware of the pollution around us.

　　D.To argue that neither homes nor offices are safe.