题目内容

【题目】2014年太阳处在第24活动周的高峰年,其活动理应处于最活跃的时期。然而,太阳活动强度明显不及上一个活动周,甚至出现太阳表面连黑子都没有了这种罕见现象。在7月18日当天,黑子更像是在躲猫猫,在太阳表面消失了,整个太阳显得异常平静。据此回答下列小题。

【1】2014年是本次太阳活动的高峰年,那么上一个太阳活动高峰年约是(

A.2000年 B.2003年 C.2009年 D.2013年

【2】太阳光球层和色球层出现的主要太阳活动分别是(

A.黑子和耀斑 B.耀斑和日珥 C.黑子和太阳风 D.耀斑和黑子

【3】本次太阳活动所产生的带电粒子流到达地球后,对地球产生的影响可能有(

地球各地出现极光现象 地球磁针不能正确指示方向 威胁天宫一号在太空中的运行安全 我国南极长城站会出现极昼现象

A.③④ B.①② C.①③ D.②③

【答案】

【1】B

【2】A

【3】D

【解析】

试题分析:

【1】太阳活动的周期是11年,2014年是太阳活动的高峰年,上一个太阳活动的高峰年是2014的11年前2003年,B正确。

【2】太阳光球层出现的太阳活动是黑子,色球层出现的太阳活动是耀斑,A正确。

【3】太阳活动产生的影响:使地球的磁针不能正确指示方向,威胁天宫一号在太空中的运行安全,D正确;只有两极地区才会出现极光;我国长城站没有位于南极圈以南不会出现极昼现象,而且极昼现象与太阳活动无关。

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【题目】阅读下面短文,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。

Every December the radio station in my city makes a program in which all the poor children can send letters asking for some Christmas presents. One day, as I was the radio, I decided to do something, so I asked four of my friends to help a poor child. They .

After several days, we learned about a from a little child called Juan. In his letter, he some blankets and some clothes and also wanted somebody to help his father the house because it was in bad .

We told the radio station that we wanted to Juan. After that, we started to think about how to all the money to buy all that Juan . After 5 days, we collected much money and bought many things for Juan. We bought some toys as a little for Juan.

, on December 22 the radio station gave a party in which all the children who asked for help were , and all those helping these children.

In the party, we Juan. We played some games with him and gave him the we prepared for him. He was very excited and happy, so were my and I.

That day was one of the most days in my life, and I learned something from it. Giving help to those in need is one of the most meaningful things that you can do this makes you feel good and also makes the persons who you are helping .

I am going to keep doing that all my life!

【1】A.thinking of B.listening to C.searching for D.looking after

2A.agreed B.refused C.hesitated D.admitted

3A.note B.telephone C.message D.letter

4A.asked for B.cared about C.looked at D.laughed at

5A.build B.repair C.rent D.buy

6A.choice B.situation C.condition D.place

7A.praise B.visit C.help D.teach

8A.save B.collect C.spend D.keep

9A.lost B.hated C.needed D.wasted

【10A.hardly B.also C.never D.still

【11A.surprise B.change C.promise D.comfort

【12A.Nearly B.Suddenly C.Immediately D.Finally

【13A.told B.shown C.invited D.allowed

【14A.forgot B.met C.ignored D.caught

【15A.presents B.signals C.plans D.tips

【16A.parents B.neighbors C.friends D.classmates

【17A.difficult B.official C.peaceful D.meaningful

【18A.lucky B.funny C.important D.interesting

【19A.though B.but C.unless D.because

20A.happy B.angry C.peaceful D.wealthy

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