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
Whenever I hear a weather report declaring it’s the hottest June 10 on record or whatever, I can’t take it too seriously, becaus
Whenever I hear a weather report declaring it’s the hottest June 10 on record or whatever, I can’t take it too seriously, becaus
admin
2017-06-11
29
问题
Whenever I hear a weather report declaring it’s the hottest June 10 on record or whatever, I can’t take it too seriously, because "ever" really means "as long as the records go back" , which is only as far as the late 1800s. Scientists have other ways of measuring temperatures before that, though—not for individual dates, but they can tell the average temperature of a given year by such proxy measurements as growth marks in corals, deposits in ocean and lake sediments, and cores drilled into glacial ice. They can even use drawings of glaciers as there were hundreds of years ago compared with today.
And in the most comprehensive compilation of such data to date, says a new report from the National Research Council, it looks pretty certain that the last few decades have been hotter than any comparable period in the last 400 years. That’s a blow to those who claim the current warm spell is just part of the natural up and down of average temperatures—a frequent assertion of the global—warming-doubters crowd.
The report was triggered by doubts about past-climate claims made last year by climatologist Michael Mann, of the University of Virginia(he’s the creator of the "hockey stick" graph AI Gore used in "An Inconvenient Truth" to dramatize the rise in carbon dioxide in recent years). Mann claimed that the recent warming was unprecedented in the past thousand years—that led Congress to order up an assessment by the prestigious Research Council. Their conclusion was that a thousand years was reasonable, but not overwhelmingly supported by the data. But the past 400 was—so resoundingly that it fully supports the claim that today’s temperatures ale unnaturally warm, just as global warming theory has been predicting for a hundred years. And if there’s any doubt about whether these proxy measurements are really legitimate, the NRC scientists compared them with actual temperature data from the most recent century, when real thermometers were in widespread use. The match was more or less right on.
In the past nearly two decades since TIME first put global warming on the cover, then, the argument against it has gone from "it isn’t happening" to "it’s happening, but it’s natural" , to "it’s mostly natural" —and now, it seems, that assertion too is going to have to drop away. Indeed. Rep. Sherwood Boehert, the New York Republican who chairs the House Science Committee and who asked for the report declared that it did nothing to support the notion of a controversy over global warming science—a controversy that opponents keep insisting is alive. Whether President Bush will finally take serious action to deal with the warming, however, is a much less settled question.
What is "proxy measurement" in Paragraph 1 likely to refer to?
选项
A、Studying the characteristics of glaciers.
B、Measuring the growth signs of aquatic organism.
C、Taking advantage of previous pictures.
D、Using clues left from the past.
答案
D
解析
本题是词汇题。通过前半句“Scientists have other ways of measuring temperaturesbefore that,…but they can tell the average temperature of a given year by such proxymeasurements…”,科学家虽不能测出地球历史上每天的准确温度,但能通过“某种测量方式”推测出它的年平均温度,由此可猜到这种方式是一种间接测量,以获得平均值。后面解释了间接测量方式的情况“…as growth marks in corals,deposits in ocean and lake sediments,…as there were hundreds of years ago compared with today.”.即通过测量地球在过去遗留下来的东西,来获取地球温度的间接数据。故D“利用以前留下的线索”正确。
转载请注明原文地址:https://kaotiyun.com/show/UNFO777K
0
考博英语
相关试题推荐
Overthepasttwodecades,thelivesofAmericanwomenhaveundergoneunparalleledchange.TheVirginiaSlimsOpinionPollhasc
Developingapeaceful,understanding,andsupportiverelationshipbetweenparentsandchildrenisnotaneasytask.Failurescana
Developingapeaceful,understanding,andsupportiverelationshipbetweenparentsandchildrenisnotaneasytask.Failurescana
AWorldWithoutBooksOrMusicIfbookshadneverbeendiscovered,manwouldhavefoundsomeotherwayofrecordinghiscomm
ThismonthSingaporepassedabillthatwouldgivelegalteethtothemoralobligationtosupportone’sparents.CalledtheMai
ThismonthSingaporepassedabillthatwouldgivelegalteethtothemoralobligationtosupportone’sparents.CalledtheMai
Oneofthemajordifferencesbetweenmanandhisclosestlivingrelativeis,ofcourse,thatthechimpanzeehasnotdevelopedthe
Oneofthemajordifferencesbetweenmanandhisclosestlivingrelativeis,ofcourse,thatthechimpanzeehasnotdevelopedthe
Thisisanalarmingrealizationasnaturalresourcesandtheenvironmentarebeingdegradedand____atarecordpace.
Nowadays,ourgovernmentadvocatescredittowhateverwedoorwhoeverwecontactwith.Onceyou____yourwords,youwillloseyo
随机试题
比较实际进度与计划进度的S形曲线,可以明显看出()。
下列关于商业银行注册资本的说法,错误的是()。
关于事业部制组织形式的说法,正确的是()。
甲公司与客户订立一项合同,约定转让软件许可证、实施安装服务并在2年期间内提供未明确规定的软件更新和技术支持(通过在线和电话方式)。合同明确规定,作为安装服务的一部分,软件将作重大定制以增添重要的新功能,从而使软件能够与客户使用的其他定制软件应用程序相对接。
在集体合同上签字盖章的工会代表、职工代表和用人单位属于()
培训激励制度的主要内容包括()。
在社区共同生活中,居民会逐渐形成与其他成员相似的行为或观念,能够与他人沟通,认同他人并得到他人的支持与认同。这体现了社区的()。
学生运用已学会的公式解决同一类型的问题运用的思维类型是()。
设m,n∈R,若直线l:mx+ny-1=0与x轴相交于点A,与y轴相交于点B,且坐标原点O到直线l的距离为,则△AOB的面积S的最小值为().
HappinessIsaJourneyThereisnowaytohappiness.Happinessistheway./Sotreasureeverymomentyouhave./Don’twast
最新回复
(
0
)