题目内容

【题目】据我国国家天文台报道,2014年9月29日至10月5日,在太阳表面观测到12个太阳活动区域,据此回答下列问题。

【1】太阳活动的标志黑子和耀斑分别出现在太阳大气的( )

A.光球层和日冕层 B.色球层和光球层

C.日冕层和色球层 D.光球层和色球层

【2】下列现象与太阳活动有关的是( )

A.地表水体的蒸发 B.两极地区出现的极光

C.石油资源的形成 D.冬季影响我国的寒潮

【答案】

【1】D

【2】B

【解析】

试题分析:

【1】考查太阳活动的类型。黑子发生在光球层,耀斑发生在色球层。D项正确。故选D

【2】考查太阳活动的影响。地表水蒸发与太阳辐射有关。A项错误。太阳活动抛出带电粒子流在极地可以产生极光现象。B项正确。石油资源的形成与地质作用有关,是被储存了的太阳辐射能。C项错误。冬季影响我国的寒潮是冷锋造成的。D项错误。故选B。

影响地球气候

亚寒带树木的年轮有规律的疏密变化与黑子11年的活动周期相对应;黑子活动高峰年,气候反常的几率增多,黑子活动的低峰年,气候状况相对平稳。

世界各国和我国都十分重视对太阳活动的观测和预测,力图把太阳活动可能造成的不利影响降到最低程度。

扰乱地球电离层

人阳活动增强时发出的电磁辐射和高能带电粒子流,强烈干扰地球高空的电离层,影响无线电短波通信,甚至会使各类无线电通信产生短时间的中断现象。

干扰地 球磁场

当太阳活动增强时,来自太阳的高能带电粒子流,会干扰地球磁场,产生磁针剧烈震动而不能正确指示方向的磁暴现象

产生极光

高能带电粒子高速冲进两极地区的高空大气,并与那里的稀薄大气相互碰撞会产生淡绿色、红色或粉红色的光带或光弧,叫极光

自然灾害

地球上许多自然灾害的发生与太阳活动有关,如水旱灾害等。

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【题目】完形填空(共20小题;每小题1.5分,满分30分)

阅读下面的短文,从短文后各题所给的A、B、C和D四个选项中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。

Ten years ago, a doctor told me something was wrong with my lung and I had to give up work at once and went to bed. I was totally 1 and felt I was suddenly placed under 2 of death with an indefinite reprieve (缓刑). After careful thought, I 3 my affairs; then I went home and got into bed. But 2 years later, I left my bed and 4 the long climb back. It was another year 5 I made it.

I speak of this experience because these past years have 6 me what to value and what to believe. I 7 now that this world is not my oyster(牡蛎)to be opened but my 8 to be grasped.

I’ve also learned that it’s necessary to 9 those little, all-important things I never thought I would 10 before: the music of the wind in my favorite pine tree, the 11 of sunlight on running water. I seem now, with some of the 12 freshness of childhood, to hear and see. How well, 13 , I recall the touch of the earth the day I first stepped upon it after the years in bed. It was like 14 one’s citizenship in a world one had nearly lost.

Frequently, I 15 myself that I need make notes of this 16 I’m living in now, because in it I’m well, 17 , doing what I like best. It won’t always be like this, 18 I’ll make the most of it and be grateful. I 19 all this to that long time spent in bed. Wiser people come to this 20 without having to acquire it the hard way. But I wasn’t wise enough. I’m wiser now, a little, and happier.

【1】A.confused B. shocked C. determined D. annoyed

【2】A.trial B. pressure C. sentence D. control

【3】A.made up B. set up C. took up D. cleared up

【4】A.recalled B. began C. avoided D. accepted

【5】A.when B. after C. since D. before

【6】A.assigned B. taught C. treated D. assured

【7】A.admit B. demand C. expect D. realize

【8】A.knowledge B. opportunity C. attention D. point

【9】A.dismiss B. list C. define D. appreciate

【10】A.notice B. record C. remember D. track

【11】A.shadow B. shake C. play D. feeling

【12】A.damaged B. recovered C. faded D. changed

【13】A.in contrast B.in return C. for instance D.by chance

【14】A.maintaining B. regaining C. discovering D. forgetting

【15】A.remind B. promise C. advise D. convince

【16】A.country B. moment C. memory D. inspiration

【17】A.pleased B. courageous C .confident D. strong

【18】A.meanwhile B. otherwise C. however D. therefore

【19】A.apply B. owe C. contribute D. adapt

【20】A.awareness B. agreement C. comment D. compromise

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