Question

The sun gives energy and the earth receives the sun’s energy. The way the earth interacts with the sun’s energy can be displayed in a picture called the earth’s energy budget（预算）. It displays the sun’s energy that reaches us and how much of that energy is taken in and how much is thrown back by the earth and its air. Once the energy reaches the earth, some of it is taken by land and oceans. The amount of energy that is taken in influences the temperatures. The energy that is not taken in is thrown back to space.

Generally, the amount of energy coming in is equal to the amount of energy going out. So, we say the earth’s energy budget is balanced. If more energy was coming in than was going out, the earth’s temperature would increase. On the other hand, if too much energy is thrown back, and not taken in, we would see the earth’s temperature dropping.

Of all of the sun’s energy that hits the earth, about 67% is taken in by the land, oceans, air and clouds and about 33% is thrown back into space.

1.The picture above shows us how ________ hits the earth.

A. the high temperatureB. the heavy rainC. the sun’s energy

2.In the 2nd paragraph, the underlined phrase “equal to ” means “______”.

A. less thanB. the same as C. more than

3.Picture ______ shows us the main idea of the last paragraph.

      A.     B. C.

4.If too much energy is thrown back, we will feel ______on the earth.

A. coldB. hotC. warm

5.The amount of energy that is _______ influences the temperatures.

A. well balanced

B. thrown back

C. taken in

Answer

1.C

2.B

3.B

4.A

5.C

【解析】

试题分析：本文介绍的是太阳传递给我们能量，地球接受太阳的能量。如果地球吸收的能量越少，返回的能量越多的话，地球的温度就会降低。这就是太阳和地球之间能量的关系。

1.根据原文The sun gives energy and the earth receives the sun’s energy.及观察图片可知，是太阳能量撞击地球。故选C。

2.less than少于，the same as同样的，more than超过，equal to意为：等于，故选B。

3.根据原文最后一段Of all of the sun’s energy that hits the earth, about 67% is taken in by the land, oceans, air and clouds and about 33% is thrown back into space. 可知太阳能量的百分之六十七被陆地，海洋等吸收，剩余的百分之三十三被返回空间。故选B。

4.根据原文if too much energy is thrown back, and not taken in, we would see the earth’s temperature dropping.可知如果太多的能量被返回，我们将会感到地球温度下降。故选A。

5.细节理解题。通过阅读原文可知太阳能量被地球吸收的数量会影响温度。故选C。

考点：科普类短文阅读。