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
90
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
Developingapeaceful,understanding,andsupportiverelationshipbetweenparentsandchildrenisnotaneasytask.Failurescana
AWorldWithoutBooksOrMusicIfbookshadneverbeendiscovered,manwouldhavefoundsomeotherwayofrecordinghiscomm
Americansarehighly_____,andthereforemayfinditdifficulttobecomedeeplyinvolvedwithothers.
Futuristshaveidentifiedtwochangesthatseemtobecentraltocontemporarysociallife.First,theU-nitedStatesisbeingre
Oneofthemajordifferencesbetweenmanandhisclosestlivingrelativeis,ofcourse,thatthechimpanzeehasnotdevelopedthe
Oneofthemajordifferencesbetweenmanandhisclosestlivingrelativeis,ofcourse,thatthechimpanzeehasnotdevelopedthe
Nowadays,ourgovernmentadvocatescredittowhateverwedoorwhoeverwecontactwith.Onceyou____yourwords,youwillloseyo
AftertheviolentearthquakethatshookLosAngelesin1994,earthquakescientistshadgoodnewstoreport;Thedamageanddeath
AftertheviolentearthquakethatshookLosAngelesin1994,earthquakescientistshadgoodnewstoreport;Thedamageanddeath
随机试题
A.招标定价B.最高出厂价格和最高零售价格C.谈判定价D.市场自主定价对部分专利药品、独家生产药品实行
用失笑散及大剂量红花、降香治疗胸痹心痛的是
某承包商于某年承包某外资工程的施工,与业主签订的承包合同约定:工程合同价2000万元;若遇物价变动,工程价款采用调值公式动态结算。该工程的人工费占工程价款的35%,水泥占23%,钢材占12%,石料占8%,砂料占7%,不调值费用占15%;开工前业主向承包商支
港航工程施工由承包商提供的担保主要类型有()。
建筑材料采购合同中,凡委托运输部门或单位运输、送货或代运的产品,交货期限一般以()的日期为准。
仲裁协议应当包括的内容有()。
板印书籍,唐人尚未盛为之,自冯灜王①已后,典籍皆为板本。庆历②中,有布衣毕昇又为活板。其法,用胶泥刻字,薄如钱唇③,每字为一印,火烧令坚。先设一铁板,其上以松脂、腊和④纸灰之类冒⑤之,欲印则以一铁范⑥置铁板上,乃密布字印。满铁范为一板,持就火炀之,药稍镕
2015年福布斯全球企业前十五强中,员工人均创造利润超过10万美元的有:
从所给的四个选项中,选择最合适的一个填入问号处,使之呈现一定的规律性:
WhichteamhasbeenbeatenbytheGreekNationalteamonitswaytowinthefinal?
最新回复
(
0
)