首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
A、Land, oceans and plants can absorb the sun’s rays. B、Not all the sun’s energy that reaches Earth can stay there. C、It is warme
A、Land, oceans and plants can absorb the sun’s rays. B、Not all the sun’s energy that reaches Earth can stay there. C、It is warme
admin
2010-10-14
39
问题
Global warming is caused by an increase in the greenhouse effect. The greenhouse effect is not a bad thing by itself--it’s what allows Earth to stay warm enough for life to survive.
You can think of the Earth sort of like your car sitting out in a parking lot on a sunny day. You’ve probably noticed that your car is always much hotter inside than the outside temperature if it’s been sitting there for a while. The sun’s rays enter through your car’s windows. Some of the heat from the sun is absorbed by the seats, the dashboard and the carpeting and floor mats. When those objects release this heat, it doesn’t all get out through the windows. So a certain amount of energy is going in, and less energy is going out. The result is a gradual increase in the temperature inside your car.
When the sun’s rays hit the Earth’s atmosphere and the surface of the Earth, approximately 70 percent of the energy stays on the planet, absorbed by land, oceans, plants and other things. The other 30 percent is reflected into space by clouds, snow fields and other reflective surfaces. But even the 70 percent that gets through doesn’t stay on earth forever. The things around the planet that absorb the sun’s heat eventually radiate that heat back out. Some of it makes it into space, and the rest of it ends up getting reflected back down to earth when it hits certain things in the atmosphere, such as carbon dioxide, methane gas and water vapor. The heat that doesn’t make it out through Earth’s atmosphere keeps the planet warmer than it is in outer space, because more energy is coming in through the atmosphere than is going out. This is all part of the greenhouse effect that keeps the Earth warm.
选项
A、Land, oceans and plants can absorb the sun’s rays.
B、Not all the sun’s energy that reaches Earth can stay there.
C、It is warmer in outer space than it is on Earth.
D、More energy comes in through the atmosphere than goes out.
答案
C
解析
反向推理。从文中得知,由于温室效应,地球的温度比外太空的温度要高。选项C)正好表达了相反的意思,而问题是哪一项不正确,所以应该选C)。
转载请注明原文地址:https://jikaoti.com/ti/onlFFFFM
0
大学英语四级
相关试题推荐
Wefindthatbrightchildrenarerarelyheldbackbymixed-abilityteaching.Onthe【B1】______,boththeirknowledgeandexperien
Manystudentsfindtheexperienceofattendinguniversitylecturestobeaconfusingandfrustratingexperience.Thelecturersp
Ifyouweretobeginanewjobtomorrow,youwouldbringwithyousomebasicstrengthsandweaknesses.Successorfailureinyou
Thefirstmoving-picturetheaterwasprobablytheworkofHarryDavis,Pittsburgh’smostprosperousshowman.In1904,herented
Internationalairlineshaverediscoveredthebusinesstravelers,themanorwomanwhoregularlyjetsfromcountrytocountryas
Readinginvolveslookingatgraphicsymbolsandformulatingmentallythesoundsandideastheyrepresent.Conceptsofreadingha
Readinginvolveslookingatgraphicsymbolsandformulatingmentallythesoundsandideastheyrepresent.Conceptsofreadingha
A、Fortymillionpeople.B、Forty-fivemillionpeople.C、Overthreemillionpeople.D、Fivemillionpeople.C同义词替换题。这条新闻是有关艾滋病的健康卫
A、Moreenvelopesshouldbeprepared.B、Heshouldwritemoreletters.C、Heshouldshowmorerespectforhisemployees.D、Heshoul
Lifeinthetwentiethcenturydemands【B1】______.Today,all【B2】______inacountrymusthaveadequate【B3】______topreparethemfo
随机试题
横向垄断协议是指两个或两个以上的因经营同类产品或服务而在生产或销售过程中处于同一经营阶段的同业竞争者,为限制竞争而达成的固定或者变更商品价格,限制商品的生产数量或者销售数量,分割销售市场或者原材料采购市场,限制购买新技术、新设备或者限制开发新技术、新产品的
根据克利夫·鲍曼的“战略钟”理论,下列各项中属于失败战略的是()。
患者,男,40岁,因反复发作性腹泻、腹胀半年余就诊,同时伴有消化不良、肠鸣增多、大便带黏液等症状。偶尔有腹痛,或伴有皮肤荨麻疹症状。患者自觉症状发作似与进食某些奶制品相关,患者进行双盲安慰剂对照食物激发试验后,牛奶为阴性,则以下项表述正确的是
细菌感染的治疗主要采用抗菌药物,主要作用机制为
A.甲氧氯普胺B.多潘立酮C.阿托品D.莫沙必利E.山莨菪碱苯并咪唑衍生物,选择性阻断外周多巴胺受体的是()。
在我国社会主义市场经济条件下,价格的功能是()。
银行或者其他金融机构的工作人员违反规定,为他人出具信用证或者其他保函、票据、存单、资信证明,情节严重的,处5年以下有期徒刑或者拘役;情节特别严重的,()。
我国开放式基金注册登记体系的模式不包括()。
以下叙述中正确的是
A、classicdisasterB、greatachievementC、commonpeople’slivesD、politicalnewsA
最新回复
(
0
)