Because plants cannot move or talk, most people believe that they have no feelings and that they cannot receive signals from outside. However, this may not be completely true.

People who studied plants have found out that plants carry a small electrical charge(電荷). It is possible to measure this charge with a small piece of equipment called "galvanometer" (檢流計). The galvanometer is placed on a leaf of the plant, and it records some changes in the electrical field of the leaf. Humans have a similar field which can change when we are shocked or frightened.

A man called Backster used a galvanometer for his studies of plants and was very surprised at his results. He found that if he had two or more plants in a room and he began to destroy one of them-perhaps by pulling off its leaves or by pulling it out of its pot then the galvanometer on the leaves of the other plants showed a change in the electrical field. It seemed as if the plants were signalling a feeling of shock. This happened not only when Backster started to destroy plants, but also when he destroyed other living things such as insects.

Another scientist, named Sauvin, achieved similar results to Backster's. He kept galvanometers fixed to his plants all the time and checked regularly to see what the plants were doing. If he was out of the office, he telephoned to find out about the signals the plants were sending. In this way, he found that the plants were sending out signals at the exact times when he felt strong pleasure or pain. In fact, Sauvin could cause a change in the electrical field of his plants over a distance of a few miles simply by thinking about them.

72. Backster was surprised at the results of his studies because ________.

A. he destroyed an insect

B. he destroyed a plant by pulling off its leaves

C. he found that plants could express feelings of shock

D. he found that plants could move and speak

73. The plants sent out signals ________.

A. only when Backster started to destroy plants

B. when Backster destroyed plants or other living things

C. only when Backster destroyed insects

D. only when Backster placed the galvanometer on the insects

74. The scientist called Sauvin ________.

A. did not agree with Backster's ideas

B. did not get the same sort of results as Backster did

C. got different results from Backster's

D. found out some of the same things that Backster did

75. Which of the following statements is TRUE according to the passage?

A. Plants don't carry the electrical charge.

B. A tree will signal when it has been cut down.

C. Sauvin could make his plants send out signals some distance away.

D. Plants have no feelings because they have no life.

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科目：高中英語 來源：2011年遼寧省瓦房店市高級中學(xué)高一下學(xué)期期末考試英語卷 題型：閱讀理解

As if there weren’t enough of them in the world already, scientists have succeeded in cloning flies. The alike fruit flies are the first insects ever cloned, says the Canadian team that created them. The question everyone asks is why anyone would want to clone flies in the first place. She hopes that the insects , which are very easy to experiment with , will help to adjust the cloning process in other animals and even in humans, where the technique is being researched to aid production of therapeutic (治療的) stem cells.
In cloning, the DNA-containing nucleus of an adult cell is injected into an egg whose own nucleus(細胞核) has been removed. At the moment, the majority of cloned mice, sheep and other animals die before birth. It is thought this is because the adult DNA is not properly ‘reprogrammed’.
Using flies, researchers might discover genes that are important for this reprogramming, and that have matches in other animals. That is because it is relatively easy in flies to knock out the function of a single gene and then attempt cloning with these cells, which will test whether that gene is important. If such genes are confirmed, then in theory cloned mammalian embryos(晶胚) might be grown in selected solutions that change the activity of those genes to improve the technique’s success rate. Although some groups have attempted to clone insects before, Lloyd says this is the first time it has been successful. The team used a slight difference on the standard cloning process: they transferred nuclei taken from embryos rather than fully-grown adult cells. They sucked several nuclei (pl)out of developing fly embryos, and injected them into a fertilized(已受精的) fly egg. From over 800 early attempts, they cloned five adult insects, the group reports in the journal Genetics.
【小題1】The best title of this passage probably is _______.

A．The importance of clone
B．First insects are cloned
C．The disagreement in clone
D．The advantages of clone
【小題2】The scientists cloned flies because________.
A．there are fewer and fewer flies in the world
B．flies are easy to find and cheap to use
C．they can gain some experience before cloning other animals
D．it is safe to clone flies
【小題3】The failure of most cloned animals is due to _______.
A．the difference of other animals’ genes
B．the improper technique of clone
C．the complex of other animals
D．the improper rearrange of the adult gene
【小題4】It can be inferred from the last paragraph that ______.
A．the clone of insects before used grown-up cells
B．the clone of insects were never experimented before
C．this time scientists cloned flies successfully and easily
D．based on this success, other animals will be cloned in large quantities.

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As if there weren’t enough of them in the world already, scientists have succeeded in cloning flies. The alike fruit flies are the first insects ever cloned, says the Canadian team that created them. The question everyone asks is why anyone would want to clone flies in the first place. She hopes that the insects , which are very easy to experiment with , will help to adjust the cloning process in other animals and even in humans, where the technique is being researched to aid production of therapeutic (治療的) stem cells.
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【小題1】The best title of this passage probably is _______.

A．The importance of clone
B．First insects are cloned
C．The disagreement in clone
D．The advantages of clone
【小題2】The scientists cloned flies because________.
A．there are fewer and fewer flies in the world
B．flies are easy to find and cheap to use
C．they can gain some experience before cloning other animals
D．it is safe to clone flies
【小題3】The failure of most cloned animals is due to _______.
A．the difference of other animals’ genes
B．the improper technique of clone
C．the complex of other animals
D．the improper rearrange of the adult gene
【小題4】It can be inferred from the last paragraph that ______.
A．the clone of insects before used grown-up cells
B．the clone of insects were never experimented before
C．this time scientists cloned flies successfully and easily
D．based on this success, other animals will be cloned in large quantities.

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As if there weren’t enough of them in the world already, scientists have succeeded in cloning flies. The alike fruit flies are the first insects ever cloned, says the Canadian team that created them. The question everyone asks is why anyone would want to clone flies in the first place. She hopes that the insects , which are very easy to experiment with , will help to adjust the cloning process in other animals and even in humans, where the technique is being researched to aid production of therapeutic (治療的) stem cells.

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1.The best title of this passage probably is _______.

A．The importance of clone

B．First insects are cloned

C．The disagreement in clone

D．The advantages of clone

2.The scientists cloned flies because________.

   A．there are fewer and fewer flies in the world 

B．flies are easy to find and cheap to use

   C．they can gain some experience before cloning other animals

   D．it is safe to clone flies

3.The failure of most cloned animals is due to _______.

   A．the difference of other animals’ genes

   B．the improper technique of clone

   C．the complex of other animals

   D．the improper rearrange of the adult gene

4.It can be inferred from the last paragraph that ______.

   A．the clone of insects before used grown-up cells

  B．the clone of insects were never experimented before  

C．this time scientists cloned flies successfully and easily

   D．based on this success, other animals will be cloned in large quantities. 

 

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科目：高中英語 來源：2011年遼寧省瓦房店市高一下學(xué)期期末考試英語題 題型：閱讀理解

As if there weren’t enough of them in the world already, scientists have succeeded in cloning flies. The alike fruit flies are the first insects ever cloned, says the Canadian team that created them. The question everyone asks is why anyone would want to clone flies in the first place. She hopes that the insects , which are very easy to experiment with , will help to adjust the cloning process in other animals and even in humans, where the technique is being researched to aid production of therapeutic (治療的) stem cells.

In cloning, the DNA-containing nucleus of an adult cell is injected into an egg whose own nucleus(細胞核) has been removed. At the moment, the majority of cloned mice, sheep and other animals die before birth. It is thought this is because the adult DNA is not properly ‘reprogrammed’.

Using flies, researchers might discover genes that are important for this reprogramming, and that have matches in other animals. That is because it is relatively easy in flies to knock out the function of a single gene and then attempt cloning with these cells, which will test whether that gene is important. If such genes are confirmed, then in theory cloned mammalian embryos(晶胚) might be grown in selected solutions that change the activity of those genes to improve the technique’s success rate. Although some groups have attempted to clone insects before, Lloyd says this is the first time it has been successful. The team used a slight difference on the standard cloning process: they transferred nuclei taken from embryos rather than fully-grown adult cells. They sucked several nuclei (pl)out of developing fly embryos, and injected them into a fertilized(已受精的) fly egg. From over 800 early attempts, they cloned five adult insects, the group reports in the journal Genetics.

1.The best title of this passage probably is _______.

    A．The importance of clone

    B．First insects are cloned

    C．The disagreement in clone

    D．The advantages of clone

2.The scientists cloned flies because________.

   A．there are fewer and fewer flies in the world 

    B．flies are easy to find and cheap to use

   C．they can gain some experience before cloning other animals

    D．it is safe to clone flies

3.The failure of most cloned animals is due to _______.

   A．the difference of other animals’ genes

   B．the improper technique of clone

   C．the complex of other animals

   D．the improper rearrange of the adult gene

4.It can be inferred from the last paragraph that ______.

   A．the clone of insects before used grown-up cells

    B．the clone of insects were never experimented before  

    C．this time scientists cloned flies successfully and easily

   D．based on this success, other animals will be cloned in large quantities.

 

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科目：高中英語 來源： 題型：閱讀理解

As if there weren’t enough of them in the world already, scientists have succeeded in cloning flies. The alike fruit flies are the first insects ever cloned, says the Canadian team that created them. The question everyone asks is why anyone would want to clone flies in the first place. She hopes that the insects , which are very easy to experiment with , will help to adjust the cloning process in other animals and even in humans, where the technique is being researched to aid production of therapeutic （治療的） stem cells.

In cloning, the DNA-containing nucleus of an adult cell is injected into an egg whose own nucleus（細胞核） has been removed. At the moment, the majority of cloned mice, sheep and other animals die before birth. It is thought this is because the adult DNA is not properly ‘reprogrammed’.

Using flies, researchers might discover genes that are important for this reprogramming, and that have matches in other animals. That is because it is relatively easy in flies to knock out the function of a single gene and then attempt cloning with these cells, which will test whether that gene is important. If such genes are confirmed, then in theory cloned mammalian embryos（晶胚） might be grown in selected solutions that change the activity of those genes to improve the technique’s success rate. Although some groups have attempted to clone insects before, Lloyd says this is the first time it has been successful. The team used a slight difference on the standard cloning process: they transferred nuclei taken from embryos rather than fully-grown adult cells. They sucked several nuclei （pl）out of developing fly embryos, and injected them into a fertilized（已受精的） fly egg. From over 800 early attempts, they cloned five adult insects, the group reports in the journal Genetics.

1．The best title of this passage probably is _______.

A．The importance of clone

B．First insects are cloned

C．The disagreement in clone

D．The advantages of clone

2．The scientists cloned flies because________.

     A．there are fewer and fewer flies in the world 

  B．flies are easy to find and cheap to use

     C．they can gain some experience before cloning other animals

     D．it is safe to cline flies

3．The failure of most cloned animals is due to _______.

     A．the difference of other animals’ genes

     B．the improper technique of clone

     C．the complex of other animals

     D．the improper rearrange of the adult gene

4．It can be inferred from the last paragraph that ______.

     A．the clone of insects before used grown-up cells

   B．the clone of insects were never experimented before  

  C．this time scientists cloned flies successfully and easily

     D．based on this success, other animals will be cloned in large quantities.

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