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
The strangest weather of last year was possibly not on Earth, but on the Sun. Every 11 years【C1】______the Sun goes through a cyc
The strangest weather of last year was possibly not on Earth, but on the Sun. Every 11 years【C1】______the Sun goes through a cyc
admin
2013-11-29
89
问题
The strangest weather of last year was possibly not on Earth, but on the Sun. Every 11 years【C1】______the Sun goes through a cycle of sunspots—actually magnetic storms erupting across its surface. The number of sunspots【C2】______its minimum in 2007 and【C3】______have increased soon afterwards, but the Sun has remained strangely quiet since then. Scientists have been baffled as weeks and sometimes months have gone by without a single sunspot, in【C4】______is thought to be the deepest solar minimum for almost 100 years.
This【C5】______of solar activity means that cosmic rays reaching Earth from space have increased and the planet’s ionosphere in the upper atmosphere has sunk in【C6】______, giving less drag on satellites and making collisions between them and space junk more likely. The solar minimum could also be cooling the climate on Earth because of slightly diminished solar irradiance. In fact, the quiet spell on the Sun may be【C7】______some of the warming effects of greenhouse gases, accounts for the somewhat flat temperature trend of the past decade. But【C8】______if this solar minimum is offsetting global warming, scientists stress that the overall effect is relatively slight and certainly will not last.
The Sun has gone into long quiet spells before. From 1645 to 1715 few sunspots were seen during a period called the Little Ice Age, when short summers and savage winters often plagued Northern Europe. Scotland was hit particularly【C9】______as harvests were ruined in cold, miserable summers, which led to famine, death, migration and huge depopulation. But whether the quiet Sun was entirely to blame for it remains highly【C10】______.
【C2】
选项
A、increased
B、got
C、reduced
D、reached
答案
D
解析
空格所在部分的大意为:2007年黑子数量——了最小值。分析各个选项,选出符合文意的项。A项increased“增加,增长”;B项got“得到,获取,变得”;C项reduced“减少,降低;使分解”;D项reached“达到,到达”。文中所要表达的意思是“黑子数量2007年达到了最小值”,所以选择D。
转载请注明原文地址:https://www.kaotiyun.com/show/vnhO777K
0
考博英语
相关试题推荐
Surprisinglyenough,modernhistorianshaverarelyinterestedthemselvesinthehistoryoftheAmericanSouthintheperiodbefo
Americansfinditdifficulttothinkaboutoldageuntiltheyarepropelledintothemidstofitbytheirownagingandthatof
AndresearcherssaythatlikethoseliteraryromanticsRomeoandJuliet,theymaybeblindtotheconsequencesoftheirquestsf
AndresearcherssaythatlikethoseliteraryromanticsRomeoandJuliet,theymaybeblindtotheconsequencesoftheirquestsf
Thefascinationwithdreamshascontinuedthroughthevariousphasesofhumanhistory.Thereisreasontobelievethattheearli
Thefascinationwithdreamshascontinuedthroughthevariousphasesofhumanhistory.Thereisreasontobelievethattheearli
WhenIwasakid,Ineverknewwhatmyparents—oranyoneelse’s—didforaliving.AsfarasIcouldtell,allgrownupshadmyste
Everysecond,【56】hectareoftheworld’srainforestisdestroyed.That’sonetotwofootballfields.This【57】rateofdestruct
随机试题
妇女病普查、普治的常用统计指标包括
下列不属于SQL查询的是()
下肢深静脉血栓形成的诊断方法有
下列何种情况不适宜制作金属烤瓷冠A.牙体缺损大,无法充填治疗B.四环素牙C.青少年恒牙D.前牙错位E.釉质发育不全
下述哪项属于卵巢肿瘤()
作为建设工程项目进度控制的依据,建设工程项目进度计划系统应()。
科学就是不断接近真理的过程,我们深信不疑的事情中很大部分是会过期的,所有理解这一点的人都明白在发展过程中不断更新知识才是科学进步的正道。然而这个过程有时会令人困惑和不安。如果以下各项为真,最能质疑上述论断的是()。
患者,女性,20岁,因左侧牙冷热痛就诊。查:36度重度磨损不均匀,未探及穿髓孔,热测引起疼痛并持续2min,叩(-),该患牙处理原则为()。
对随机变量X,已知EekX.存在(k>0常数),证明:P{X≥ε}≤.E(ekX).(其中ε>0).
MarathonRacesinAmericaManyAmericansenjoyrunning./Andonekindofrace,themarathon,hascapturedtheimaginationo
最新回复
(
0
)