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    Karl Von Frisch made an experiment to research A. the food of honeybees B. the dance of honeybees C. the ways honeybees communicates D. the hive of honeybees 【查看更多】

     

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    Professor Karl Von Frisch, ____ scientists from Austria, spent many years of his life researching the amazing ways ____ honey-bees communicate in their dark hives.

       A. a;\                         B. the ; which             C. a; where             D. the; that

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    阅读理解。
         There are varieties of bee in the world. Scientists are interested in honeybees because of the "language" they
    use to communicate with each other. Karl von Frisch, a professor from Austria, devoted many years of his life
    to researching the ways honey-bees communicate in their hives (蜂房). Karl von Frisch built special hives, a
    glass wall and painted some honey-bees with different colors.
         A marked bee which returned to the hive from the feeding table performed a dance on the surface of the
    honeycomb (蜂巢). First it made a circle to the right, then to the left. It repeated these circles again and again.
    The surrounding bees copied its dances and then they left for the feeding place.
         Karl von Frisch set up two feeding places. One was close to the hive the other was farther away. The bees
    that had been at the nearby feeding place were doing the circling dance. The bees at the distant feeding place
    were dancing differently. The dancer ran in a straight line, wagging (摇摆) from side to side. Then it turned in
    a semicircle (半圆), ran straight again, and turned in another semicircle to the opposite side. It repeated the
    dance over and over. The dances convey messages about the far-away feeding place. Karl von Frisch and his
    assistants slowly moved a feeding place close to the hive farther and farther away and they counted how many
    times the bees repeated the dance in one minute. Finally they found out the number of wagging dances per
    minute told the exact distance to the feeding place.
    1. Scientists are interested in honeybees just because _____.
    [     ]
    A. The honey-bees have bright colors.
    B. The honey-bees enjoy a strange way of communication.
    C. The honeydew is delicious.
    D. there are several kinds of bees in the world.
    2. Professor Karl von Frisch was from _____.
    [     ]
    A. America
    B. Australia
    C. Sweden
    D. Austria
    3. What information does the dance convey?
    [     ]
    A. There is no feeding place around.
    B. The feeding place is farther away.
    C. The feeding place is too far for the bees to get to.
    D. The feeding place is near the hive.
    4. What did Karl von Frisch want to find out while moving a feeding place close to the hive farther and farther
        away?
    [     ]
    A. How the bees continued their dances.
    B. How the bees communicated the distance to the feeding place.
    C. The differences between the circling dance and the wagging dance.
    D. How the bees flew to the feeding place.

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    阅读理解。
         There are about a billion bicycles in the world, twice as many as there are cars. But if Karl von Drais, the
    Baron of Sauerbronn (1785-1851) hadn't been such a lazy person,the bicycle may never have been invented
    at all.
         Although he had a very important title (and was also a qualified and skillful engineer), the Baron was in
    fact a forest ranger, in other words, a gardener with responsibility for a very large garden. He was in charge
    of several hundred square kilometers of royal garden and forests in Central Germany.
         In 1817, he invented a "running machine" that would help him get round the estate more quickly. The
    machine was made of wood, and had two wheels, which were the same size. The machine had a wooden
    frame and a leather seat. The rider rode the machine like a horse,but with his feet on the ground. After running
    for a while, he could then take his feet off the ground and glide along. It was possible to change direction by
    controlling the front wheel, but there were no brakes! In 1863, a Frenchman called Pierre Lallement attached
    pedals (踏板) to the front wheel of a bicycle, and the modern idea of a bicycle was born.
         Every generation sees new designs and new interest in bicycles. Mountain bikes, for example, transformed
    the way people thought about cycling and introduced a new sport,which was accepted into the Olympics in
    1996.
         New materials such as titanium and carbon fiber are now used to build strong, lightweight machines and
    combined brake and gear systems have been developed. Englishman Chris Boardman astonished the world in
    the 1990s with his carbon fiber Lotus bicycle, winning Olympic gold in the 4,000 meters track pursuit (追逐)
    in Barcelona. More recently, the Great Britain team took several medals at the Athens Olympics.
         For most people, however, the bicycle remains what it has always been-a pollution-free way of taking
    exercise and getting from A to B.
    1. The underlined word "estate" in Paragraph 3 refers to _____.
    A. the Baron's big house
    B. the mountains in Central Germany
    C. the forests near the Baron's house
    D. the large garden and forests the Baron in charge of
    2. Karl von Drais invented the first bicycle _____.
    A. with wooden wheels and a seat, no pedals
    B. with two wooden wheels like a wooden horse with pedals
    C. so he could walk faster around the garden
    D. to ride downhill with his feet off the ground
    3. What kind of gardener does the text suggest the Baron was? 
    A. Someone who took care of forests across Germany.
    B. Someone responsible for a big estate of loyal forests and gardens.
    C. Someone responsible for the gardens in the whole of Central Germany.
    D. Someone who was a qualified engineer looking after running machines.
    4. Changes to the bicycle have occurred over the years because of _____.
    A. the need for mountain bikes
    B. the need for new kinds of bicycles
    C. the discovery of useful new materials and new ideas
    D. the Olympics and competitive cycling sports

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    阅读理解

    　　An experiment was once done by Karl von Frish, in which he studied bee activities when they returned to their home called a hive (蜂房). The experiment showed that there was a means by which a bee communicated to other bees that it had found food. That was dance!

    　　In fact, bees do two kinds of dances to tell other bees of their food discovery. First, there is a circle dance, in which the bee moves in a circle inside the hive. The circle dance is used when the food is not more than ten meters away. A second kind of dance done by the bee is a waggling (摇摆) dance. That is to say, the bee wiggles (摆动) the end of its body as it moves in a straight line, then it turns in a semicircle (半圆), runs straight again. The waggling dance is used when the food is more than ten meters away. Meanwhile, in the two dances, the bees smell the dancing bee that has found the food. The smell tells them where to find the flower and also what kind of flower to look for.

    　　For this really interesting work, Karl von Frisch won a Nobel Prize.

    1．Karl von Frisch won a Nobel Prize for ________.

    [　　]

    A．communicating with bees

    B．having studied bees' activities

    C．setting up an experimental base

    D．the discovery of bees' looking for food

    2．If the food is ________ away, the bee will move in a circle.

    [　　]

    A．16 metres
    B．20 meters
    C．8 meters
    D．30 metres

    3．Which of the following can show the waggling dance?

    [　　]

    A．
    B．
    C．
    D．

    4．The bees know where to find the food by the ________ of the bee that has found it.

    [　　]

    A．color
    B．design
    C．smoke
    D．smell

    5．Which of the following statements may be true?

    [　　]

    A．Karl von Firsch did the experiment to find out if bees had a language of their own.

    B．In their spare time, bees often do two kinds of dances.

    C．Bees can communicate to one another as human beings do.

    D．In the circle dance, the bee waggles the hind half of its body.

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    　　How does a bee tell the others where to find the flowers it has discovered?

    　　In the early 1900s, Austrian naturalist Karl von Frisch puzzled over this curious problem. Fascinated with the ways honeybees worked together, Von Frisch began a deep study of their activities when they returned to their home called a hive. Von Frisch discovered that bees express themselves not only by feeling and tasting, but also by dancing. There was a means by which a bee communicated to other bees that it had found food. That was dance!

    　　In fact, bees do two kinds of dances to tell other bees of their food discovery. First, there is a circle dance, in which the bee moves in a circle inside the hive. The circle dance is used when the food is not more than ten meters away. The second kind of dance done by the bee is a waggling dance. That is to say, the bee waggles the end of its body as it moves in a straight line, then it turns in a semicircle, runs straight again. The waggling dance is used when the food is more than ten meters away. Meanwhile, in the two dances, other bees gather around and closely follow the dancer. They smell the dancing bee that has found the food. The smell tells them where to find the flower and also what kind of flower to look for. For this really interesting work, Karl von Frisch won a Nobel Prize.

    1．Bees communicate by means of the following EXCEPT ________.

    [　　]

    A．feeling
    B．tasting
    C．dancing
    D．hearing

    2．A circle dance is made ________.

    [　　]

    A．at the place where the bee finds food

    B．on the way back home

    C．when the bee is back at home

    D．outside the hive

    3．Which of the following statements may be TRUE?

    [　　]

    A．Karl von Frisch did the experiment to find out if bees had a language of their own.

    B．In their spare time, bees often do two kinds of dances.

    C．Bees can communicate to one another as human beings do.

    D．In the circle dance, the bee waggles the hind half of its body.

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