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
2023-07-10
79
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/2823457.html
相关试题推荐
[originaltext]W:(22)Dr.White,werecentlylearnedthatalargepieceoftheL
[originaltext]W:Sam,couldyoureviewtheresultsofthesurveyonleisurespo
[originaltext]Whydowecry?Canyouimaginelifewithouttears?Notonlyd
[originaltext]Whydowecry?Canyouimaginelifewithouttears?Notonlyd
[originaltext]JohnLennon,oneoftheBeatles,wasmurderedjustbefore11
[originaltext]JohnLennon,oneoftheBeatles,wasmurderedjustbefore11
[originaltext]Inmanysocietieswomenerenottreatedastheequalsofmen.
[originaltext]Operator:Hello.Thisistheemergency911operator.TaxiDriver:
[originaltext]Operator:Hello.Thisistheemergency911operator.TaxiDriver:
[originaltext]Operator:Hello.Thisistheemergency911operator.TaxiDriver:
随机试题
Electroniccomputers,whichhavemanyadvantages,cannotcarryoutcreativeworka
ThePresidentmadehislastpublic______beforehistermofofficeended.A、appe
电阻式(电阻抗法)血液分析仪的发明者是A.Moldavan B.Poole
从()来看,传统的计划演出体制正在向市场演出体制转变。A.市场主体 B.演出体
水轮机型号表示方法中,可逆式水轮机在型号后加()。A.S B.L C.
(2012年、2014年)下列可享受优惠政策的项目中,不通过企业所得税纳税申报表
施工人员对涉及()的试块、试件以及有关材料,应当在建设单位或者工程监理单位
根据资产的定义,下列各项中不属于资产特征的是( )。A.资产是企业拥有或者控制
监理单位在工程勘察阶段提供相关服务时,向建设单位提交的工程勘察成果评估报告中应包
自动喷水灭火系统安装要求包括()。A.自动喷水灭火系统的管道横向安装宜设2‰~
最新回复
(
0
)