题目内容

【题目】2016年7月18日至7月24日,国家天文台在日面上观测到4个活动区,共发生过7次M级耀斑,其中最大的一次为M7.6级。据此完成下列问题。

【1】该耀斑爆发会使

A.全球各地普降暴雨 B.地球上无线电各波段通信中断

C.全球各地大幅度升温 D.罗盘不能正确指示方向

【2】以下地区较易观太阳活动产生的绚丽极光的是

A.北冰洋沿岸地区 B.青藏高原

C.赤道附近地区 D.撒哈拉沙漠地区

【3】下列人类活动需要密切关注太阳活动的是

A.煤炭采掘 B.水产养殖 C.道路施工 D.航天发射

【答案】

1】D

2】A

【3D

【解析】

1】耀斑爆发时,其发射电磁波进入地球大气层,会引起大气层扰动,使地球上无线电短波通信受到影响,甚至出现短暂的中断现象。太阳大气抛出的高能带电粒子会扰乱地球磁场,产生磁暴现象,使罗盘不能正确指示方向。太阳活动对地球的气候有影响,但不会使各地大幅度升温和普降暴雨。

2】太阳大气抛出的高能带电粒子高速冲进两极地区的高空大气,与那里稀薄大气相互碰撞,会出现美丽的极光,因此极地附近地区易观测到极光。

【3太阳活动会影响航天发射的无线电短波通讯,因此航天发射活动需要密切关注太阳活动。

练习册系列答案
相关题目

【题目】When you meet friendsfamily and new peoplethey all want to have an interesting conversation.Most of the time this____you will make a great impression when you bring up interesting topics of____told in the form of a story.

____let's say a new hotel has just opened in your city.One way to____this is to give the facts and the statisticsit is a 5 Star hotel with 00 roomsa gymgreat views of the skyline and a roof top restaurant.That is not the____I'd introduce that news as a topic of conversation.I'd tell a story.

On Tuesday evening last night a little after 8pm I was walking down Main Street with Lisa when we___unusual red lights way down the street.We had some time to____before meeting her sister so we walked a few more blocks____those red lights got closer and closer.We still didn't know what the____were about.

Anywaywe got to the building and____that those red lights were all around the building.It's a hotel but it doesn't look like any hotel I've____seen.As you walk up to the entrance it's more like walking along a passage____a really weird art gallery and a European late night bar.

We walked in and ended up talking to the____.He even gave us a tour of the bar and restaurant before taking us____in the elevator to the roof.What a____You can see right across the city from up there.This is a very____hotel.I've never seen anything like it.

Notice how I____a news item without making it sound like a news broadcast.I introduced very few___.I would share more information if the person I'm talking to____me to tell them more.First I need to get their attention to____if they have any interest in that subject.Story telling is the best way to do that.

【语篇导读】 不管是会见朋友,还是和家人相聚,谈话的方式都很重要。本文通过作者的亲身体会,介绍了交流的最佳方法。在作者看来,以讲故事的形式谈话会有意想不到的谈话效果。

1A.promises Bmeans Cexplains Dproves

2A.quarrel Bargument Cdiscussion Dconversation

3A.For example BWhat's more CIn fact DBy the way

4A.build Bdesign Cmention Denjoy

5A.time Bexcuse Creason Dway

6A.switched Bspotted Crecognized Dtransform

7A.spare Bsave Ckill Drest

8A.until Bif Cthough Dbecause

9A.houses Btrees Croads Dlights

10A.predicted Bnoticed Cguessed Dadmitted

11A.often Busually Cever Dhardly

12A.between Bthrough Cbeyond Dalong

13A.captain Bchairman Cmonitor Dmanager

14A.down Bup Cin Dout

15A.sign Bmark Cview Dsymbol

16A.unique Bpopular Cfamiliar Dsteady

17A.evaluated Bapproved Ccovered Dshared

18A.secrets Bfacts Cideas Dpoints

19A.allows Bforbids Casks Dbegs

20A.see Bwonder Cdoubt Danswer

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网