题目内容
A few years after World II finished, Scientists spoke with great eagerness about the use of nuclear(核) as source of energy. Within twenty years, they said, nuclear would take the place of coal, gas and oil as a source of power at home and in industry. This promise has never been carried out and there are serious doubts that it ever will be. Nuclear power plants are used to produce energy in some wealthier countries, but the cost is high.
Although safety measures have been taken, radiation leaks(辐射泄漏) have taken place and workers have been killed or affected. The problem of getting rid of the nuclear waste has proved most difficult. There is a limit to the mount of waste materials which can be buried in the ground or poured in the seabed. These methods may also cause more problems. Waste materials polluted by radiation may remain dangerous for 200 years or more.
It has no surprise that scientists have turned to the sun and the sea as sources of power. The sun shines day after day almost wastefully, providing us with energy far beyond all our earth.
1. The underlined word”source”means_______?
A. place from which something comes.
B. making use of
C. power plant.
D. a form.
2. Nuclear waste must be dealt with carefully, because______.
A. It still gives off energy B. It’s much more expensive than coal, gas and oil. C. It’s harmful to people’s health. D. It can burn easily.
3. Which of the following statements is true?
A. It’s impossible to get rid of nuclear waste
B. Most of the nuclear water can be stored safely.
C. Not all nuclear waste can be got rid of.
D. Nuclear waste can be replaced and reused easily.
4. The writer starts the last paragraph with “It has no surprise----”in order to_____.
A. tell us the danger of nuclear power.
B. show there is plenty of sunshine.
C. Show that the energy of the sun can be made better use of
D. tell us why scientists lost interest in nuclear power.
ACCA
)，并在其下面写出该加的词。
)，并在其下面写出该加的词。