niusouti.com
单选题The purpose of this passage is to ______.A frighten people with the rapid melting of the Greenland ice sheetB urge people to take some measures to curb the melting of the Greenland ice sheetC promote people’s environmental protection consciousnessD let
题目
frighten people with the rapid melting of the Greenland ice sheet
urge people to take some measures to curb the melting of the Greenland ice sheet
promote people’s environmental protection consciousness
let people know the time the Greenland ice sheet will take to melt
相似考题
参考答案和解析
该段录音首先指出IPCC认为至少等1000年格陵兰岛冰盖才会融化，但是Lenton’s group表示300年内该冰盖就会断裂，那时亿万人将会受到影响，从录音最后Lenton提到的“格陵兰岛冰盖断裂很快就会变得无法避免，但是我们并不认为我们已经度过了临界点”，可见该段录音主要是想提高人们的环保意识。
【录音原文】
The IPCC says the Greenland ice sheet will take at least l, 000 years to melt. But Lenton’s group—whose members include John Schellnhuber, the chief scientist on climate change at the recent G8 meeting in Germany—says the sheet could break up within 300 years, raising sea levels by 7 meters. This would flood hundreds of millions of people or more out of their homes. “We are close to being committed to a collapse of the Greenland ice sheet,” Lenton says. “But we don’t think we have passed the tipping point yet.”
更多“单选题The purpose of this passage is to ______.A frighten people with the rapid melting of the Greenland ice sheetB urge people to take some measures to curb the melting of the Greenland ice sheetC promote people’s environmental protection consciousnessD let”相关问题
-
第1题：
What is the author’s purpose in writing the passage?
A.To give a prescription for insomnia.
B.To urge people to sleep less.
C.To analyze the sleep pattern of modern people.
D.To throw new light on human sleep.
正确答案：D
-
第2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.Melting of snow and ice enables sunlight to reach______.
A:the exposed ground
B:a very long time
C:the extra heat
D:recorded history
E:previously published studies
F:rapid exaggeration of impacts答案：A解析：第二段第一句就说人们燃烧化石燃料，随后又指出这样会释放二氧化碳，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，即便过了本世纪，其危害将会依然存在。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。
根据第一段第三句“…recorded history.”可知，空格处应填D项。
根据第三段第四句“…exposed ground.”可知，空格处应填A项。
根据第五段第一句“.previously published studies...”可知，空格处应填E项。
根据文章最后一句“…thousands of years...”可知，空格处应填B项。"a very long time" 是对“thousands of years”的同义转换。 -
第3题：
Scientists say climate change and human activity have increasingly led to the melting of ______ pieces of Antarctic ice.A.massive
B.quantitative
C.surplus
D.formidable答案：A解析：题目意为“科学家们说，气候变化和人类活动日益导致了大量南极冰的融化。”选项A意为“大规模的，大量的”，选项B意为“定量的”，选项C意为“过剩的，多余的”，选项D意为“可怕的”。根据题意，故选A。
-
第4题：
The purpose of the New Deal measures was to（）
Asave American democracy and the capitalist system
Bcheck the worsening of the economic situation
Chelp people tie over the difficulty
Dincrease American export
A
略 -
第5题：
单选题The purpose of this passage is to tell people that______.Amost old people die from accidents at home
Bup to half of home accidents could be prevented
Cfalls at home can be avoided by taking some simple measures
Dprotection of old people should be the first concern for the public
正确答案： D解析：
本题是主旨题。从文章的意思来看，作者主要介绍了三种避免老人在家中摔倒的方法，可见文章主要是围绕避免摔倒的问题展开的。A“很多老人都死于家中的意外事故”，B“半数以上的家中意外事故都可以避免”，D“公众应把保护老年人安全放在首要位置”都不是最佳选项，因此正确答案为C。 -
第6题：
单选题The author's intention in writing the passage is to______.Apraise the wisdom of the old people
Badvise people to be patient
Canalyze the danger of heart diseases
Dpersuade people to be trustful
正确答案： B解析： -
第7题：
问答题Practice 10 Glaciers in Antarctica are melting faster and across a much wider area than previously thought, a development that threatens to raise sea levels worldwide and force millions of people to flee low-lying areas. Researchers once believed that the melting was limited to the Antarctic Peninsula, a narrow tongue of land pointing toward South America. But satellite data and automated weather stations now indicate it is more widespread. The melting also extends all the way down to what is called west Antarctica. By the end of the century, the accelerated melting could cause sea levels to climb by 3 to 5 feet-levels substantially higher than predicted by a major scientific group just two years ago. Making matters worse, the ice shelves that hold the glaciers back from the sea are also weakening. For years, the continent at the bottom of the world seemed to be the only place on the planet not experiencing climate change. Previous research indicated that temperatures across much of Antarctica were staying the same or slightly cooling. The big surprise was exactly how much glaciers are melting in western Antarctica, a vast land mass on the Pacific Ocean side of the continent that is next to the South Pole and includes the Antarctic Peninsula. The glaciers are slipping into the sea faster because the floating ice shelf that would normally stop them—usually 650 t0980 feet thick—is melting. And the glaciers' discharge is making a significant contribution to increasing sea levels. Together, all the glaciers in west Antarctica are losing a total of around 114 billion tons per year because the melting is much greater than the new snowfall. That's equivalent to the current mass loss from the whole of the Greenland ice sheet, New research found that melting glaciers will add at least 7 inches to the world's sea level—and that's if carbon dioxide pollution is quickly capped and then reduced.正确答案：
【参考译文】
与以往见解不同,南极冰川正以更快的速度在大得多的范围内融化。这一变化将导致严重后果,使得世界范围内海平面上升,并迫使成千上万人背井离乡,逃离低海拔的地区。研究人员曾以为冰川融化只会局限于南极半岛这一片指向南美洲的小范围土地。但卫星提供的数据以及自动化气象站都表明这一现象已扩大:冰川一路融化,并且延伸至名为西南极的地区。到本世纪末,由于冰川融化速度加快,海平面可能上升三至五尺,这比两年前主流科学家们所预测的数值要高得多。冰架能使冰川不至于漂流于海上,可更糟的是,它们现在也面临着危机。
多年来,地球上没有经历气候变化的唯一地方似乎只有南极洲。早先的研究表明从南极经过的空气温度恒定,甚至稍低。西南极是一片紧挨南极,包括南极半岛,位于南极洲濒临太平洋方向上的广阔陆地,但当你得知此片地域冰川消融的具体数目时,只会目瞪口呆。正常情况下,冰架通常有650到980尺厚,它们可以阻止冰川滑向海洋,但它们本身却在消融。而漂浮至海洋的冰川,成为了使海平面升高的重要原因。
由于消融量比新的降雪量高得多,每年从西南极流失的冰川,总计可达到1140亿吨,这相当于丧失掉如今一整个格陵兰冰床。新的研究发现,如果不迅速限制并减少二氧化碳污染物的排放,正在融化中的冰川会使地球海平面上升至少7英尺。解析： 暂无解析 -
第8题：
单选题What is the purpose of the passage?ATo tell us just to be ourselves in social life
BTo introduce ways to learn about the world
CTo explain how people communicate with others
DTo encourage us to meet people of different kinds
正确答案： C解析：
通读最后一段可知，作者鼓励我们走出舒适区，认识不同类型的人，只有这样我们才会走出无知，避免偏见和恐惧，这样才能交到更多的朋友，过更精彩的生活（That’s how we make friends… That’s how we live an exciting life.）。因此选D项。 -
第9题：
单选题Siegel and Cummings hoped to choose an animal to _____.Acall on people to take actions against global warming
Bmake people aware of the danger of environmental damage
Cintroduce to people a new concept of environmental protection
Dremind people of the importance of protecting endangered species
正确答案： A解析：
第一段第二句说Siegel正在寻找一个由于气候变化而逐渐消失的物种，希望用它作为警示全球变暖危害的象征物。 -
第10题：
单选题The main idea of this passage is ______.Ahow to distinguish people’s faces
Bhow to describe people’s personality
Chow to distinguish people both inwardly and outwardly
Dhow to tell good persons from bad persons without wearing masks
正确答案： D解析：
主旨题。答案出处为第一段、第二段及最后一段。C项中的inwardly和outwardly 与原文中提出的face和personality相对应。A和B两项只提及了文章的一个方面，而D项仅提及如何区分好人与坏人，与文章大意不符。 -
第11题：
单选题According to the passage, the best way for children to learn things is by _____.Aasking older people many questions
Blistening to skilled people's advice
Cmaking mistakes and correcting them
Ddoing what other people do
正确答案： C解析： -
第12题：
单选题According to the author, to be an anthropologist means we should _____.Atake interest in what we are doing
Bnot take interest in what other people are doing
Cjudge other people’s behaviors with accepted standards
Dnot judge other people’s behaviors with our own standards
正确答案： C解析：
第一段第二句话说作者对人类学的重新定义是“可以对别人的生活方式感兴趣，但不要妄加评论”。 -
第13题：
29． What's the purpose of the passage?
A． To give some advice on how to lose weight．
B． To advise people to eat apples every day．
C． To tell people how to enjoy a better life．
D． To advise people to give up bad habits．
正确答案：A
29．A【解析】由全文可知“这篇文章主要介绍了减肥的一些方祛、建议”，故选A。 -
第14题：
资料：A high-precision NASA radar instrument left a NASA airport in Southern California for Iceland on January 28 to create detailed maps of how glaciers move in the dead of winter. This will help scientists around the world better understand some of the most basic processes involved in melting glaciers, which are major contributors to rising sea levels.
NASA used the same airborne instrument in June 2012 to map the summer flows of two Icelandic ice caps. The ice caps — large areas of permanent snow and ice cover — encompass multiple glaciers flowing in different directions and at different speeds. By mapping the same ice caps now, in winter, when the surface remains frozen all day, and then comparing the winter and summer velocities, the researchers will be able to isolate the effects of melt water.
Above is a view of a small part of the Hofsjkull ice cap, which encompasses several glaciers. The fan at upper left is part of a glacier called Mlaj?kull.
For more on the research, see this NASA press release.
How can the scientists figure out the effects of melting water?A.By melting the frozen iceberg in winter.
B.By observing the snow's moving directions.
C.By isolating ice from water in sunlines.
D.By comparing the glaciers moving speeds.答案：D解析：本题考查的是细节理解。
【关键词】how; the scientists; figure out effects; melting water
【主题句】第2自然段By mapping the same ice caps now, in winter, when the surface remains frozen all day, and then comparing the winter and summer velocities, the researchers will be able to isolate the effects of melt water. 通过勘察相同的冰盖，在冬天，当表面保持冷冻一整天，然后比较冬天和夏天的速度，研究人员将能够分离融水的影响。
【解析】本题的问题是“科学家们怎样才能弄清楚融化水的作用呢？”。选项A意为“通过冬天融化冰山”；选项B意为“通过观察雪的移动方向”；选项C意为“通过在太阳线下隔离水中的冰”；选项D意为“通过比较冰川的移动速度”。
根据主题句可知，科学家们通过对比冰川在夏天和冬天的移动速度来弄清楚融化水的作用，故选D。 -
第15题：
According to the passage，the combined efforts by govermments，layout unions and big corporations to guarantee economic comfort have led to a significant change in( )A.people’s outlook on life
B.people’s life styles
C.people’s living standard
D.people s social values答案：A解析：
-
第16题：
单选题According to the passage, a white lieseems to be a lie_______.Athat other people believe
Bthat other people don't believe
Ctold in order to avoid offending someone
Dtold in order to take advantage of someone
正确答案： B解析： -
第17题：
单选题Some people are often surprised by what other people do. According to Berger, that is mainly because _____.Asome people are more emotional than others
Bsome people are not aware of the fact that we will never completely know another person
Csome people are sensitive enough to sense the change of other people’s attitudes
Dsome people choose to keep to themselves
正确答案： B解析：
根据第二、三段的内容可以推出，有一些人总是为他人的所作所为吃惊，这是因为他们没有意识到我们永远不可能完全了解一个人。 -
第18题：
单选题According to the passage, the unemployment rate has been kept under limits because _____.Athe number of the people in the work force slowly increases
Bvery few people really lose their original jobs
Cless and less people are out finding new jobs
Dthe government has taken strong measures to control the unemployment rate
正确答案： A解析：
由文章第二段第五句，“The unemployment rate…a weak economy.”，可知，失业率保持在一个较低的水平是由于人力资源的缓慢增加而导致的。工作的人数的增加少，相对失业的人也较少。A选项正是此意。B，C，D选项无关。 -
第19题：
单选题The main purpose of this advertisement is to ______.Aencourage more people to attend the Forum in time
Bpromise everyone can pay less money to attend the Forum
Ccall on the people in the north of the USA to go south for holidays
Dintroduce some new activities and topics of the Forum
正确答案： D解析：
主旨大意题。这是一篇带有广告性质的宣传文稿，其主要目的是鼓励更多的人参加论坛。 -
第20题：
单选题The author’s purpose in writing this passage is to tell _____.Areaders how to be popular with people around
Bteenagers how to learn to make a decision for themselves
Cparents how to control and guide their children
Dpeople how to understand and respect each other
正确答案： D解析：
从倒数第二行“Find yourself. Be yourself.”可知作者的目的是让年轻人学会自己做决定，不要随大流。 -
第21题：
单选题The purpose of the New Deal measures was to（）Asave American democracy and the capitalist system
Bcheck the worsening of the economic situation
Chelp people tie over the difficulty
Dincrease American export
正确答案： D解析： 暂无解析 -
第22题：
单选题According to the passage, which of the following is NOT TRUE?AMost voters support the government's effort to help young people to work.
BSome people protest against the government's attempt to force young people to work.
CThere are more than one million young people who took part in the program.
DThere are more than one million young people who are jobless.
正确答案： C解析： -
第23题：
单选题The passage is mainly about _____.Ahow people celebrate Valentine’s Day
Bhow Valentine’s Day originated and evolved
Cwhat is the best way to promote Valentine’s Day
Dwhy people have different attitudes toward Valentine’s Day
正确答案： C解析：
本文介绍的是情人节的起源及其演变经过。