Sometimes, the simplest ideas are the best. For example, to absorb heat from the sun to heat water, you need large, flat, black surfaces. One way to do that is to build those surfaces specially, on the roofs of buildings. But why go to all that trouble when cities are rub of black surfaces already, in the form of asphalt (柏油) roads?

     Ten years ago, this thought came into the mind of Arian de Bondt, a Dutch engineer. He finally persuaded his boss to follow it up. The result is that their building is now heated in winter and cooled in summer by a system that relies on the surface of the road outside.

      The heat-colleetor is a system of connected water pipes. Most of them ran from one side of the street to the other, just under the asphalt road. Some, however, dive deep into the ground.

      When the street surface gets hot in summer, water pumped through the pipes picks up this heat and takes it underground through one of the diving pipes. At a depth of 100 metres lies a natural aquifer (蓄水层) into which several heat exchangers (交换器) have been built. The hot water from the street runs through these exchangers, warning the ground-water, before returning to the surface through another pipe. The aquifer is thus used as a heat store.

      In winter, the working system is changed slightly. Water is pumped through the heat exchangers to pick up the heat stored during summer. This water goes into the building and is used to warm the place up. After performing that task, it is pumped under the asphalt and its remaining heat keeps the road free of snow and ice.

64. Which of the following is true according to the first two paragraphs?

A. Arian de Bondt got his idea from his boss.

B. Large, flat, black surfaces need to be built in cities.

C. The Dutch engineer's system has been widely used.

D. Heat can also be collected from asphalt roads.

65. For what purpose are the diving pipes used?

A. To absorb heat from the sun.

B. To store heat for future use.

C. To turn solar energy into heat energy.

D. To carry heat down below the surface.

66. From the last paragraph we can learn that __

A. some pipes have to be re-arranged in winter

B. the system can do more than warming up the building

C. the exchangers will pick up heat from the street surface

D. less heat may be collected in winter than in summer

67. What is most likely to be discussed in the paragraph that follows?

A. What we shall do if the system goes wrong.

B. What we shall do if there are no asphalt roads.

C. How the system cools the building in summer.

D. How the system collects heat in spring and autumn.

完型填空（共20小题；每小题1分，满分20分）
阅读下面短文，从1---20各题所给的四个选项（A、B、C和D）中，选出最佳选项, 并在答题卡上将该选项标号涂黑。
One day, an expert in time-management was speaking to a group of business students. To make the point 1 , he used an illustration.
As he stood in front of the group, he said, “Okay, time for a quiz.” He then pulled out a wide-mouth jar and set it on the table. Then he    2   placed about a dozen fist-sized rocks, one by one, into the jar.
When the jar was filled to the    3   and no more rocks would fit inside, he asked, “Is this jar    4 ?” Everyone in the class said, “Yes.”
“Really?” Then he    5  under the table and pulled out a bucket of gravel（沙砾，石子），dumped some in and   6  the jar, causing pieces of gravel to work themselves down into the space    7  the big rocks. Then he asked the group the same question. “Probably not.” One of them answered. “Good!” he replied.
He reached under the table and    8   a bucket of sand. He started dumping the sand in the jar and it went into all the    9   left between the rocks and the gravel.    10   he asked the question. “No!” the class shouted. “Good!” Then he grabbed a can of water and began to pour it in    11   the jar was filled to the brim.
Then the expert in time-management looked at the class and asked, “What is the    12  of this illustration?” It is such a seemingly easy question that one   13   student raised his hand and said, “It is, however full your schedule is, if you try really hard you can always   14   some more things in it.”
“No,” the speaker replied, “The truth it teaches us is that you will    15   get them in at all if you don’t put the big rocks in first.    16   the big rocks in your life are, do things that you love and    17  for yourself. In your schedule if you value the little stuff then you’ll fill your life with    18   things and you will never have the real quality time you need to spend on the big, important stuff. So, tonight, or in the morning, when you are   19   on this short story, ask yourself what are the ‘big rocks’ in your life? Then put those in your    20   first.”

Have you ever heard a news reporter talk about DNA? Reporters talk about DNA found at the scene of a crime. They talk about police finding DNA “fingerprints.” Police sometimes use DNA as a clue to find out who committed the crime.

DNA is a substance（物质） that makes up genes. Everything alive has genes. Plans have genes. Animals have genes. You have genes.

Genes are the basic units of heredity（遗传）. Heredity means all the characteristics you inherit from your parents. You get your genes from your parents. You inherit half of your genes from your mother. You inherit half of your genes from your father.

Genes are a kind of code. A tree’s genes tell what shape its leaves will be. A cat’s genes tell what color its fur will be. Your genes tell what color your eyes will be. Your genes tell what color your hair will be. Everything about you comes from the code in your genes.

Genes line up on strands（链） called chromosomes（染色体） in cells. Everything alive is made up of cells. Chromosomes are in the center, or nucleus, of cells.

Different parts of you are made of different kinds of cells. Your muscles are made of muscle celIs. Your skin is made of skin cells. The code in your genes tells your body to make different kinds of cells. The genes in each cell tell the cell how to work. They tell the cell when to make new copies of itself.

An Austrian monk named Gregor Mendel first saw inherited patterns in pea plants. He experimented with pea plants in the 1860s. One of the things, or traits（特质）， Mendel studied was what makes some pea plants tall and some short. He said that the traits must come from units of heredity passed from the parent plants. These units were later called genes.

In the mid-1900s, scientists discovered that genes are made of DNA. In the 1970s, scientists learned how to change DNA with genetic engineering. Scientists also learned that problems with certain genes cause diseases. Muscular dystrophy, cystic fibrosis, and hemophilia are some genetic diseases-diseases caused by problems in genes. Today, scientists are looking for ways to cure genetic diseases by changing genes through a process called gene therapy.

What is DNA?

A. DNA is a kind of gene.

B.. DNA is a substance that makes up genes.

C. DNA is the basic unit of heredity.

D. DNA is a measure to protect crime.

Which of the following about genes is correct according to the passage?

A. Plants, animals and human beings have the same genes.

B. Half people inherit all genes from their mother, others from their father.

C. Genes decide the trees shapes, the cats’ fur color and our eyes’ color as well.

D. Genes will give you a code when you need them.

Where are genes?

A. Genes lining up on strands called chromosomes are in the center of cells.

B. Genes hide in everything alive in your body.

C. Genes can be nowhere but in your mind, controlling all your actions.

D. Genes travel in your body and help cope skin, muscle, and eyes.

An Austrian monk named Gregor Mendel         .

A. first saw inherited patterns in people

B. was interested in why plants were different

C. first called the units of heredity from parents genes

D. was the first who discovered genes

We can conclude that         .

A. scientists were less intelligent than monks in 1900s

B. some genes are bad and can cause diseases

C. we don’t need to worry about genetic diseases any longer

D. the discovery of genes may be of great help in our daily life

     The year 2009 is the Year of Ox. The ox is a representative of the fanning culture of China. In the farming economy (经济), oxen are the major animals pulling plows (犁).

     Of course, the good of oxen is not limited to plowing.  In fact, they are seen as "boats on land" for their ability to carry loads. Besides, the whole body of an ox is full of treasures. Their meat and milk are food full of nutrition, and their skin can be used to make clothes and shoes. With all these qualities, oxen are regarded as generous creatures.

     In the past, oxen played an important role in the spiritual life of the Chinese. Even today, oxen still play a special part in some folk activities. For example, some people who1ire in southwest China will cook cattle bone soup and share it among family members when holding the ceremony for children who reach 13. They believe that the cattle bone soup represents the blood relationship among family members. In order to express their love for oxen, people in some other areas will run to shake off diseases on the 16th day of the first month by the lunar calendar (农历), and during their run they will take their oxen along, which indicates they regard the creature as human.

     Because of the contribution of oxen in their lives, the Chinese people are very grateful to the animal. In addition, the use of oxen in ceremonies and the thanks people owe to oxen help to develop various traditional customs, which becomes an important part of the folk culture of the Chinese nation.

60. The words "boats an land" underlined in Paragraph 2 refer to __

     A. animals for taking goods                 B. creatures for pulling plows

     C. treasures of the folk culture              D. tools in the farming economy

6l. From the third paragraph, we know that __

     A. oxen are no more important today than in the past

     B. ceremonies are held when people cook cattle bone soup

C. oxen are treated as human in some areas of China

     D. people run with oxen to shake off diseases every month

62. Which of the following helps to develop traditional customs?

        A. The special role of oxen in frowning.

B. People's respect and love for oxen.

C. The practical value of an ox's body.

D. The contribution of oxen to the economy.

63. Why does the author write the text?

        A. To stress the importance of oxen in farming.

B. To introduce the Chinese folk culture.

        C. To describe how to celebrate the Year of Ox.

        D. To explain how to develop agriculture with oxen.

Mere is an astonishing and significant fact: Mental work alone can’t make us tired. It sounds absurd. But a few years ago, scientists tried to find out how long the human brain could labor without reaching a stage of fatigue (疲劳).To the amazement of these scientists, they discovered that blood passing through the brain, when it is active，shows no fatigue at all! If we took a drop of blood from a day laborer, we would find it full of fatigue toxins (毒素）and fatigue products. But if we took blood from the brain of an Albert Einstein, it would show no fatigue toxins at the end of the day.

So far as the brain is concerned, it can work as well and swiftly at the end of eight or even twelve hours of effort as at the beginning. The brain is totally tireless. So what makes us tired?

Some scientists declare that most of our fatigue comes from our mental and emotional (情感的）attitudes. One of England’s most outstanding scientists, J. A. Hadfield，says, “The greater part of the fatigue from which we suffer is of mental origin. In fact, fatigue of purely physical origin is rare.” Dr. Brill, a famous American scientist, goes even further. He declares, “One hundred percent of the fatigue of a sitting worker in good health is due to emotional problems.”

What kinds of emotions make sitting workers tired? Joy? Satisfaction? No! A feeling of being bored， anger, anxiety, tenseness, worry, a feeling of not being appreciated - those are the emotions that tire sitting workers. Hard work by itself seldom causes fatigue. We get tired because our emotions produce nervousness in the body.

64. What surprised the scientists a few years ago?

A.        Fatigue toxins could hardly be found in a laborer’s blood.

B.        Albert Einstein didn’t feel worn out after a day’s work.

C.       The brain could work for many hours without fatigue.

D.       A mental worker’s blood was filled with fatigue toxins.

65. According to the author, which of the following can make sitting workers tired?

A.        Challenging mental work.

B.        Unpleasant emotions.

C.       Endless tasks.

D.       Physical labor.

66. What's the author’s attitude towards the scientists’ ideas?

A.        He agrees with them.

B.        He doubts them.

C.       He argues against them.

D.       He hesitates to accept them.

67. We can infer from the passage that in order to stay energetic, sitting workers need to _____ .

A.        have some good food

B.        enjoy their work

C.       exercise regularly

D.       discover fatigue toxins