填空题Read the passage and fill in each blank with one word. Choose the word in
one of the following three ways: according to the context, by using the correct
form of the given word, or by using some given letters of the word. Remember to
write the answers on the answer sheet. For the last fifty
years, the globe has been warming up. It is true that the
average temperature r{{U}} {{U}} 1 {{/U}} {{/U}}is only about
two degrees, but that has been e{{U}} {{U}} 2 {{/U}} {{/U}}to
start the glaciers {{U}} {{U}} 3 {{/U}} {{/U}}(recede) in many
parts of the world. A rise of one degree per generation is a
large in{{U}} {{U}} 4 {{/U}} {{/U}}. Nature seldom moves as
swiftly as this. We may have been helping her. To a very large {{U}}
{{U}} 5 {{/U}} {{/U}}, the temperature of the Earth is determined
{{U}} {{U}} 6 {{/U}} {{/U}}the amount of solar heat which the
atmosphere can keep. The air above us sets like the glass in a
greenhouse, trapping many of the heat waves which would other{{U}}
{{U}} 7 {{/U}} {{/U}}bounce back into space. Carbon dioxide in the
air is mostly responsible {{U}} {{U}} 8 {{/U}} {{/U}}the
"greenhouse effect"; it is a gas produced by all our countless fires, furnaces
(熔炉) and internal combustion engines (内燃机). The end of the age
of fossil fuels is already in sight; soon in one or two centuries at the roost
we will have wasted all the world's re{{U}} {{U}} 9
{{/U}} {{/U}}of oil and coal. This no longer means disaster, for {{U}}
{{U}} 10 {{/U}} {{/U}}(atom) energy has arrived in time to save our
civilization from dying through lack of power.