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
2024-02-20
61
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、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)。
转载请注明原文地址:https://tihaiku.com/zcyy/3465849.html
相关试题推荐
[originaltext]RichardandMauriceMcDonald,theoriginalownerofMcDonald’
[originaltext]RichardandMauriceMcDonald,theoriginalownerofMcDonald’
[originaltext]RichardandMauriceMcDonald,theoriginalownerofMcDonald’
[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]Mr.Fosterstartedhispublishingbusinesswithonlyonemaga
随机试题
下列不属于路基的几何要素的是( )。A.路基宽度 B.路基高度 C.路基边
乡人至夜话 [明]李昌祺 形容不识识乡音,挑尽寒灯到夜深。 故旧凭君休更说
属于半定量评定的是A.异常步态的目测分析法 B.关节活动度评 C.Brunn
六氟化硫设备湿度运行控制指标中规定有电弧分解物隔室的含水量为()(A)≤
消弧线圈的作用是什么?为什么要经常切换分接头?
西方发达国家的大学教授几乎都是得到过博士学位的。目前,我国有些高等学校也坚持在招
王女士找社会工作者小赵反应,她读初二的儿子沉迷手机游戏,不爱与人交流,希望小赵帮
某工程项目业主邀请了三家施工单位参加投标竞争。各投标单位的报价见表4-1,施工进
《中华人民共和国固体废物污染环境防治法》规定,禁止擅自( )工业固体废物污染环
7个月女婴,因3~4天来咳嗽入院,以往曾多次患"肺炎、肠炎"。查体:体重5.2k
最新回复
(
0
)