By controlling the production of human growth hormone . 查看更多

 

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This is a toy plane which can be operated by ________ control (遥控).

 

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This is a toy plane which can be operated by ________ control (遥控).

 

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From the beginning rivers have played an important in the life of man.Man of the earliest times used the rivers as a means of travel.Today rivers still serve as a great waterway for the transport and people.
In ancient times, man settled near rivers or on river banks and built up large empires.
Water is nature’s most valuable gift to man.Man needs water to irrigate his crops, to cook and to wash.In nations all over the world, rivers mean life and wealth.They feed and clothe the nations around them.
Water is also a source of energy and power.Man build huge dams across the rivers to control the water for irrigation and get the energy needed to drive generators.The electrical power is then directed to homes, cities, factories and television stations.
Man uses water each day.In a small way rivers help to keep man in good health and provide for his amusements.Various forms of water sports keep man strong and healthy.
【小题1】Rivers have been important to man _______.

A.since they came into beingB.since the last century
C.since a few hundred years ago.D.since the beginning of BC
【小题2】Man in old times traveled from one continent to another ______.
A.by airB.by seaC.by trainD.by bus
【小题3】Generators are machines that are used ______.
A.to direct electrical powerB.to control the water
C.to produce electricitD.to build dams y
【小题4】Which of the following statements is true?
A.People get energy by building bridges across rivers.
B.In ancient times large empires grew up near dams.
C.People can be provided with amusements in small rivers.
D.Large rivers are still useful for transportation in modern times.

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People being tested for radiation exposure

The crisis at the damaged Fukushima Dai-Ichi Nuclear Power Station in northern Japan has raised worries about radiation risks. We spoke Tuesday with Jonathan Links, an expert in radiation health sciences. He is a professor at the Johns Hopkins Bloomberg School of Public Health in Maryland.
Professor Links says workers within the nuclear plant are the only people at risk of extremely high doses of radiation.
JONATHAN LINKS: "Of course, we don't know what doses they've received, but the only persons at risk of acute radiation effects are the workers."
For other people, he says, there may be a long-term worry. People can get cancer from low doses of ionizing radiation, the kind released in a nuclear accident.
Professor Links says scientists can use computers to quickly model where radioactive material has blown and settled. Then they measure how large an area is contaminated. He says if the situation is serious enough, officials could take steps like telling people not to eat locally grown food or drink the water.
JONATHAN LINKS: "But that would only be the case if there was a significant release and, because of wind direction, the radioactive material was blown over the area, and then settled out of the air into and onto water, plants, fruits and vegetables."
The reactors at Fukushima are on the Pacific coast. But Professor Links says people should not worry about any radioactive material leaking into the ocean.
JONATHAN LINKS: "Even in a worst-case scenario accident, the sea provides a very high degree of dilution. So the concentration of radioactivity in the seawater would still be quite low."
Japan is the only country to have had atomic bombs dropped on it. That memory from World War Two would create a stronger "psychological sensitivity" to radiation exposure, Professors Links says.
Next month is the twenty-fifth anniversary of the explosion and fire that destroyed a reactor at Chernobyl in Ukraine. The nineteen eighty-six event was the world's worst accident in the nuclear power industry.
A new United Nations report says more than six thousand cases of thyroid cancer have been found. These are in people who were children in affected areas of Belarus, Russia and Ukraine. The report says that by two thousand five the cancers had resulted in fifteen deaths.
The cancers were largely caused by drinking contaminated milk. The milk came from cows that ate grass where radioactive material had fallen.
To get the latest updates, go to www.unsv.com.
Contributing: James Brooke
【小题1】The passage mainly tells us __________.

A.What measures the Japan Government takes to solve the nuclear crisis .
B.Worries and influences caused by the nuclear crisis .
C.With great efforts of scientists , the Japan Government has put the nuclear crisis under control .
D.To explain that the nuclear crisis has less effect on its neighboring countries.
【小题2】Which of the following is NOT the influences caused by the leak of Fukushima Dai-Ichi Nuclear Power Station?
A.Workers at the nuclear station are suffering the risk of death .
B.People can get cancer from low doses of ionizing radiation, the kind released in a nuclear accident.
C.The radioactive material may be blown over the area causing the pollution to water .
D.The concentration of radioactivity in the seawater can not be diluted.
【小题3】What’s the meaning of the underlined word “dilution”?
A.chemicalB.salt C.dissolutionD.elimination
【小题4】According to the passage which of the following is not TRUE ?
A.Water people drink ,food and vegetables people eat may be polluted by nuclear radiation .
B.Japan is the only country to have had atomic bombs dropped on it.
C.You can go to www.unsv.com. to get the latest news .
D.The nuclear accident in Japan is the worst in the nuclear power industry.

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You are given many opportunities in life to choose to be a victim or creator. When you choose to be a victim, the world is a cold and difficult place. “They” did things to you which caused all of your pain and suffering. “They” are wrong and bad, and life is terrible as long as “they” are around. Or you may blame yourself for all your problems, thus internalizing(内化)your victimization. The truth is, your life is likely to stay that way as long as you feel a need to blame yourself or others.
  Those who choose to be creators look at life quite differently. They know there are individuals who might like to control their lives, but they don’t let this get in the way. They know they have their weaknesses, yet they don’t blame themselves when they fail. Whatever happens, they have choice in the matter. They believe their dance with each sacred(神圣的)moment of life is a gift and that storms are a natural part of life which can bring the rain needed for emotional and spiritual growth.
  Victims and creators live in the same physical world and deal with many of the same physical realities, yet their experience of life is worlds apart. Victims relish (沉溺)in anger, guilt, and other emotions that cause others---and even themselves---to feel like victims, too. Creators consciously choose love, inspiration, and other qualities which inspire not only themselves, but all around them. Both victims and creators always have choice to determine the direction of their lives.
  In reality, all of us play the victim or the creator at various points in our lives. One person, on losing a job or a special relationship, may feel as if it is the end of the world and sink into terrible suffering for months, years, or even a lifetime. Another with the same experience may choose to first experience the grief, then accept the loss and soon move on to be a powerful creative force in his life.
  In every moment and every circumstance, you can choose to have a fuller, richer life by setting a clear intention to transform the victim within, and by inviting into your life the powerful creator that you are.
【小题1】What does the word “They” in Paragraph 1 probably refer to?

A.People and things around you.  B.Opportunities and problems.
C.Creators and their choices.  D.Victims and their sufferings.
【小题2】According to Paragraph 2, creators __________.
A.seem willing to experience failures in life
B.possess the ability to predict future life
C.handle ups and downs of life wisely
D.have potential to create something new
【小题3】What can we learn from Paragraph 3?
A.Creators and victims face quite different things in life.
B.Creators and victims are masters of their lives.
C.Victims can influence more people than creators.
D.Compared with victims, creators are more emotional.
【小题4】The examples mentioned in Paragraph 4 show that _______________.
A.strong attachment to sufferings in life pulls people into victims
B.people need family support to deal with challengers in life
C.it takes creators quite a long time to get rid of their pains
D.one’s experiences determine his attitude toward life
【小题5】What is the author’s purpose in writing this passage?
A.To define victims and creators.
B.To evaluate victims against creators
C.To explain the relationship between victims and creators.
D.To suggest the transformation from victims to creators.

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