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
2023-07-19
92
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 29 to 31 are based on the passage you have just heard.
29. What is the root cause for weather changes on the Earth according to the passage?
30. Why does only a small part of the Sun’s energy reach the Earth’s surface?
31. What do we learn from the passage?
选项
A、A forest looks dark in winter because it absorbs solar energy.
B、All living things on the Earth depend on the Sun for their food.
C、Only 0.023% of the energy from the Sun is made use of on the Earth.
D、Greenhouse gases allow heat energy to escape from the Earth’s surface.
答案
B
解析
短文中提到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,其中all organisms on the Earth表明地球上的所有生物都要依靠太阳提供食物,故答案为B)。
转载请注明原文地址:https://tihaiku.com/zcyy/2849587.html
相关试题推荐
[originaltext]Amangotaparrotwhichcouldalreadytalk.Ithadbelonged
[originaltext]M:Sara,I’vebeenlookingforwardtoouryearlycampoutforthre
[originaltext]M:Sara,I’vebeenlookingforwardtoouryearlycampoutforthre
[originaltext]W:I’msuregladthattoday’sphysicsclassisover!Whatdidyou
[originaltext]W:I’msuregladthattoday’sphysicsclassisover!Whatdidyou
[originaltext]W:I’msuregladthattoday’sphysicsclassisover!Whatdidyou
[originaltext]W:I’msuregladthattoday’sphysicsclassisover!Whatdidyou
[originaltext]W:I’msuregladthattoday’sphysicsclassisover!Whatdidyou
[originaltext]W:I’msuregladthattoday’sphysicsclassisover!Whatdidyou
[originaltext]Mr.Fosterstartedhispublishingbusinesswithonlyonemaga
随机试题
WheredidJerryfalloff?[br][originaltext]F:What’sWrongWithyourleg,Jerry
Writingisdowngradedasifitisaclumsy______formoreefficientmeansofpr
40岁已婚妇女,孕1产0,月经周期规律,4~5天/30天。末次月经为4月1日,持
A.可去间断点 B.跳跃间断点 C.无穷间断点 D.连续点
左边给定的是纸盒的外表面,下面哪一项能由它折叠而成? A.如上图所示 B.如
就读于苏州某小学的王同学,上音乐课时因自言自语,被音乐老师用封箱胶带施以“封嘴”
建设单位应当将大型的人员密集场所和其他特殊建筑工程的消防设计文件报送公安机关消防
一般资料:女性。24岁,未婚,大学毕业。 求助者自述:我们刚拿到毕业证书本应该
投资项目决策分析与评价的基本要求包括贯彻落实科学发展观、资料数据准确可靠和()
根据《水工建筑物地下开挖工程施工技术规范》DL/T5099-2011,单向开挖隧
最新回复
(
0
)