首页
财务会计
医药卫生
金融经济
考公考编
外语考试
学历提升
职称考试
建筑工程
IT考试
其他
登录
职称考试
共用题干 Climate Change:The Long Reach1.Earth is warming.Sea levels are rising.T...
共用题干 Climate Change:The Long Reach1.Earth is warming.Sea levels are rising.T...
admin
2020-12-24
8
问题
共用题干
Climate Change:The Long Reach
1.Earth is warming.Sea levels are rising.There's more carbon in the air,and Arctic ice is melting faster than at any time in recorded history.Scientists who study the environment to better gauge(评估) Earth's future climate now argue that these changes may not reverse for a very long time.
2.People burn fossil fuels like coal and oil for energy.That burning releases carbon dioxide,a colorless gas.In the air,this gas traps heat at Earth's surface.And the more carbon dioxide released,the more the planet warms.If current consumption of fossil fuels doesn't slow,the long-term climate impacts could last thousands of years-and be more severe than scientists had been expecting.Climatologist Richard Zeebe of the University of Hawaii at Manoa offers this conclusion in a new paper.
3.Most climate-change studies look at what's going to happen in the next century or so.During that time , changes in the planet's environment could nudge(推动)global warming even higher.For example, snow and ice reflect sunlight back into space.But as these melt,sunlight can now reach-and warm-the exposed ground.This extra heat raises the air temperature even more,causing even more snow to melt.This type of rapid exaggeration of impacts is called a"fast feedback".
4.Zeebe says it's important to look at fast feedbacks.However,he adds,they're limited.From a climate change perspective,"This century is the most important time for the next few generations,"he told Science News."But the world is not ending in 2100."For this new study,Zeebe now focuses on"slow feedbacks".While fast feedback events unfold over decades or centuries,slow feedbacks can take thousands of years.Melting of continental ice sheets and the migration of plant life-as they relocate to more comfortable areas-are two examples of slow feedbacks.
5.Zeebe gathered information from previously published studies investigating how such processes played out over thousands of years during past dramatic changes in climate.Then he came up with a forecast for the future that accounts for both slow and fast feedback processes.Climate forecasts that use only fast feedbacks predict a 4.5 degree Celsius(8.1 degree Fahrenheit)change by the year 3000.But slow feedbacks added another 1.5℃-for a 6℃ total increase,Zeebe reports.He also found that slow feedback events will cause global warming to persist for thousands of years after people run out of fossil fuels to burn.
选项
Melting of snow and ice enables sunlight to reach______.
A:the extra heat
B:rapid exaggeration of impacts
C:the exposed ground
D:recorded history
E:a very long time
F:previously published studies
答案
C
解析
第二段第一句就说人们燃烧化石燃料,随后又指出燃烧化石燃料能释放二氧化碳,紧接着就说二氧化碳的危害。由此可知,第二段主要讲的是燃烧化石燃料的危害。
第三段主要讲的是,冰雪融化导致地表裸露,然后太阳可以直射地表,使地表升温,反过来又促使冰雪融化。这些都是对“快速反馈”的解释,即认为燃烧化石燃料会使温室效应愈演愈烈。
第四段主要表明,化石燃料燃烧的危害将长期存在,不会在短时间内得到根治,其危害将会持续数千年。这些是对“缓慢反馈”的解释,冰山融化与植物迁徙是“缓慢反馈”的两个例子。
第五段的第二句是主题句,主要讲的是Zeebe在考虑了“快速反馈”和“缓慢反馈”的同时,对未来气候变化做的一种预测。
由第一段第三句“…recorded history.”可知,空格处应填D项。
由第三段第四句“…exposed ground.”可知,空格处应填C项。
由第五段第一句“…preciously published studies…”可知,空格处应填F项。
由文章最后一句“…thousands of years…”可知,空格处应填E项。"a very long time"是 "thousands of years"的同义转换。
转载请注明原文地址:https://ti.zuoweng.com/ti/q6lQKKKQ
相关试题推荐
ThingshavechangedalotsinceIwasachild,AgraduallyBsuddenlyCfrequentl
共用题干 Itiswell一knownthatlifeexpectancyislongerinJapanthaninmosto...
共用题干 Itiswell一knownthatlifeexpectancyislongerinJapanthaninmosto...
共用题干 Itiswell一knownthatlifeexpectancyislongerinJapanthaninmosto...
共用题干 Itiswell一knownthatlifeexpectancyislongerinJapanthaninmosto...
共用题干 Itiswell一knownthatlifeexpectancyislongerinJapanthaninmosto...
共用题干 Itiswell一knownthatlifeexpectancyislongerinJapanthaninmosto...
共用题干 Itiswell一knownthatlifeexpectancyislongerinJapanthaninmosto...
共用题干 FlyingIntoHistoryWhenyouturnonthetelevisionorreadamagazine,...
共用题干 FlyingIntoHistoryWhenyouturnonthetelevisionorreadamagazine,...
随机试题
某人听说正常,但不能识别文字,这可能是脑内()出现损伤。 A.布洛卡区 B
下列不属于多级网络计划系统编制原则的是( )。 A、整体优化原则 B、分段均
钢筋混凝土结构中配置箍筋的主要目的是()。
某500kV超高压架空线路长度为400km,电磁波的传播速度为3X105km/s
在谈到游击战争在抗日战争中的战略地位时,毛泽东说抗日战争的作战形式中,主要的是运
改性沥青面层施工时,摊铺后应紧跟着碾压,在初压和复压过程中,宜采用同类压路机(
孕妇自觉胎动异常,B超显示胎儿脐带受压,胎儿缺氧的早期表现为A.胎心率>200次/分,胎动增加B.胎心率>180次/分,胎动增加C.胎心率>160次/分,胎
“人的发展是个体的内在因素与外部环境在个体活动中相互作用的结果”。这一观点属于个体发展上的()。A.内发论B.外铄论C.多因素相互作用论D.三因素论
关于不可复性关节盘前移位临床特征的描述,错误的是A:关节弹响史继而间断性关节绞锁史B:弹响消失而张口受限C:开口时下颌偏向健侧D:被动检查张口时开口度不能
将建设项目和非公共项目,这种分类方式的依据是( )A.项目的目标B.项目的产品(或)服务属性C.项目的融资主体D.项目与企业原有资产关系