首页
登录
职称英语
[originaltext] We experience different forms of the Sun’s energy every day.
[originaltext] We experience different forms of the Sun’s energy every day.
游客
2024-02-10
13
管理
问题
We experience different forms of the Sun’s energy every day. We can see its light and feel its warmth. The Sun is the major source of energy for our planet. It causes the evaporation of water from the oceans and lakes. Sunlight also provides the energy used by green plants to make their own food. These green plants then provide food for all organisms on the Earth.
Much of the energy that comes from the Sun never reaches the Earth’s surface. It is either reflected or absorbed by the gases in the upper atmosphere. Of the energy that reaches the lower atmosphere, 30% is reflected by clouds or the Earth’s surface. The remaining 70% warms the surface of the planet, causes water to evaporate, and provides energy for the water cycle and weather. Only a tiny part, approximately 0.023%, is actually used by green plants to produce food.
Many gases found in the atmosphere actually reflect heat energy escaping from the Earth’s surface back to the Earth. These gases act like the glass of a greenhouse in that they allow energy from the Sun to enter but prevent energy from leaving. They are therefore called greenhouse gases.
When sunlight strikes an object, some of the energy is absorbed and some is reflected. The amount reflected depends on the surface. For example, you’ve probably noticed how bright snow is when sunlight falls on it. Snow reflects most of the energy from the Sun, so it contributes to the low temperatures of winter. Dark-colored surfaces, such as dark soil or forest, absorb more energy and help warm the surrounding air.
Questions 19 to 21 are based on the passage you have just heard.
19. What is the root cause for weather changes on the Earth according to the passage?
20. Why does only a small part of the Sun’s energy reach the Earth’s surface?
21. What do we learn from the passage?
选项
A、The atmosphere surrounding the Earth.
B、Water from oceans and lakes.
C、Energy from the Sun.
D、Greenhouse gases in the sky.
答案
C
解析
问题询问什么是使地球天气变化的根本原因。短文主要讲的是太阳对地球的影响:When sunlight strikes an object,some of the energy is absorbed and some is reflected,接着举出冬天的雪反射阳光使温度降低,天气变冷,故答案为C)。听力题选择答案时有时也可根据常理判断。
转载请注明原文地址:https://tihaiku.com/zcyy/3439723.html
相关试题推荐
[originaltext]W:(22)Dr.White,werecentlylearnedthatalargepieceoftheL
[originaltext]W:(22)Dr.White,werecentlylearnedthatalargepieceoftheL
[originaltext]W:Sam,couldyoureviewtheresultsofthesurveyonleisurespo
[originaltext]W:Sam,couldyoureviewtheresultsofthesurveyonleisurespo
【B1】[br]【B18】A、singleB、perfectC、differentD、separateB语义衔接题。由后面的“cratersand
[originaltext]Whydowecry?Canyouimaginelifewithouttears?Notonlyd
[originaltext]JohnLennon,oneoftheBeatles,wasmurderedjustbefore11
[originaltext]JohnLennon,oneoftheBeatles,wasmurderedjustbefore11
[originaltext]Inmanysocietieswomenerenottreatedastheequalsofmen.
[originaltext]Inmanysocietieswomenerenottreatedastheequalsofmen.
随机试题
Oneofthemostcommonimagesofanadvanced,Western-stylecultureisthat
LifeBeginsat100[A]Thisyear,thenumberofpensioner
Mostpeoplehavenoideaofthehardworkandworrythatgointothecollect
下列材料中吸水率最大的是()A.花岗岩 B.普通混凝土 C.木材 D.
下列关于回弹法检测混凝土强度的叙述,表述正确的是()。A.一般来说,对同一构件
结合有关填石路基的实测项目内容,回答下列有关问题。(5)填石路基进行压实项目的检
关于破坏社会主义市场经济秩序罪的认定,下列哪一选项是错误的?()(2014年)
(2015年真题)某女,60岁,患冠心病心绞痛数年,症见胸闷,心悸,头晕,头痛,
关于工程项目质量控制系统的特性,下列说法正确的是()。A.工程项目质量控制系统
逻辑函数L=∑(0,1,2,3,4,6,8,9,10,11,12,14)的最简与
最新回复
(
0
)