题目

To get some idea of the amount of heat the sun gives off, think about this. If you could collect all the heat that hits the earth in a two-week period, it would equal the amount of all other known sources and reserves of energy: Wood, coal and oil. But even these sources of energy depend on the sun for their formation. For example, a tree would certainly never grow and provide fuel in the form of wood were it not for the sun. Because the sun is so important in the production of all forms of heating fuel, more and more time and money are being spent studying ways to change power from the sun directly into a form of heat. The process currently in use for collecting energy from the sun--known as solar energy--is quite simple. The sunlight hits a metal plate known as a flat-plate collector and the plate absorbs the heat front the sun. This heat, in turn, heats a liquid inside the plate. A layer of fiber-glass inside the plate helps prevent this heat from escaping. In this way, solar heat can be stored in a liquid solution equalling about 1,000 watts of electricity per square meter. In the 1960s, a solar furnace was installed in the Pyreness Mountains of France to test the use of solar energy. In this furnace, a mirror is used to concentrate the sun’s heat. This concentrated heat keeps temperature in the furnace as high as 6,000 °F.What can be inferred from the passage（） A．The sun gives off countless heat. B．The tree could grow without the sun, but not very well. C．People try to change solar energy into cooking fire. D．The sun’s temperature can be as high as 6,000°F.

To get some idea of the amount of heat the sun gives off, think about this. If you could collect all the heat that hits the earth in a two-week period, it would equal the amount of all other known sources and reserves of energy: Wood, coal and oil. But even these sources of energy depend on the sun for their formation. For example, a tree would certainly never grow and provide fuel in the form of wood were it not for the sun. Because the sun is so important in the production of all forms of heating fuel, more and more time and money are being spent studying ways to change power from the sun directly into a form of heat. The process currently in use for collecting energy from the sun--known as solar energy--is quite simple. The sunlight hits a metal plate known as a flat-plate collector and the plate absorbs the heat front the sun. This heat, in turn, heats a liquid inside the plate. A layer of fiber-glass inside the plate helps prevent this heat from escaping. In this way, solar heat can be stored in a liquid solution equalling about 1,000 watts of electricity per square meter. In the 1960s, a solar furnace was installed in the Pyreness Mountains of France to test the use of solar energy. In this furnace, a mirror is used to concentrate the sun’s heat. This concentrated heat keeps temperature in the furnace as high as 6,000 °F.What can be inferred from the passage（） A．The sun gives off countless heat. B．The tree could grow without the sun, but not very well. C．People try to change solar energy into cooking fire. D．The sun’s temperature can be as high as 6,000°F.

题目解答

答案

C

解析

步骤 1：理解文章内容
文章主要介绍了太阳提供的热量以及如何利用太阳能。文章提到，如果收集两周内太阳照射到地球上的所有热量，这将等于所有已知能源（如木材、煤炭和石油）的总和。这些能源的形成也依赖于太阳。因此，人们正在研究如何将太阳能直接转化为热能。文章还提到了太阳能收集过程和一个在法国安装的太阳能炉。

步骤 2：分析选项
A. The sun gives off countless heat.（太阳发出无数的热量。）
B. The tree could grow without the sun, but not very well.（树可以在没有太阳的情况下生长，但生长得不好。）
C. People try to change solar energy into cooking fire.（人们试图将太阳能转化为烹饪用火。）
D. The sun’s temperature can be as high as 6,000°F.（太阳的温度可以高达6,000°F。）

步骤 3：选择正确答案
文章中提到，人们正在研究如何将太阳能直接转化为热能，但没有提到将太阳能转化为烹饪用火。因此，选项C是正确的。