Question

    Imagine you are taking a bus home at night. Suddenly your cellphone loses its signal. The television on the bus has no programs. Everything around us black-except for some strange colorful lights dancing in the sky. What is going on?

These are just the kinds of problems a solar storm might cause. Solar storms happen when solar flares (耀斑)break from the sun and travel towards Earth quickly. Actually, since Sept.4, 2017, the sun has burst out two big solar flares, the most powerful ones since at least 2008 according to NASA. They hit Earth on Sept.7.

Normally, Earth is protected by its magnetic field (磁场). But when strong solar storm mix with it, things change. On the one hand, the colourful lights of the aurora (极光)can be seen from the US and Europe, rather than just from polar (极地的)areas. But on the other hand, the storms can stop the satellite systems that control our computers, cell phones and GPS. They can even cause blackouts (断电) for weeks or months.

   , but they can put astronauts in danger. Spacewalking astronauts might have only minutes to hide. For this reason, NASA never plans spacewalks during solar storms.

Scientists now have a new tool called EEGGL, which can predict solar storms and hopefully give us warnings when they arrive. As for the recent storm, scientists say it is still too early to know its effect on our technology. They are closely watching for any long-term effects.

1.A solar storm might cause problems EXCEPT that ______.

A.the cell phone loses its signals B.we get hurt in the eyes suddenly

C.we have no TV programs D.everything around turns black

2.Which of the following statements is TRUE ?

A.Solar storms happen when solar flares travel toward the sun quickly.

B.The aurora can only be seen from polar areas during a solar storm.

C.Satellite systems can't work unless they're connected with solar storms.

D.It took two solar flares 3 days to come to Earth in September, 2017.

3.Which of the following sentence can be put in “    ”.

A.Solar storms are good for people on the ground

B.Solar storms have great effect on people on Earth

C.Solar storms hardly harm people on the ground

D.Solar storms can harm people on Earth seriously

4.The passage is written in a /an ______ tone(语气).

A.angry B.serious C.crazy D.happy

Answer

1.B

2.D

3.C

4.B

【解析】

短文大意：本文是科普类阅读，介绍了太阳风暴现象和可能引起的后果以及对太阳风暴的预测。

1.

题意：太阳风暴可能会引起除了________之外的问题。

考查推理判断。A. 手机失去信号；B. 眼睛突然受伤；C. 没有电视节目；D. 一片漆黑。根据开头的列举“Suddenly your cellphone loses its signal. The television on the bus has no programs. Everything around us black突然你的手机失去了信号。车上的电视没有节目。我们周围的一切都是黑色的”，可知没有提及眼睛受伤，故选B。

2.

题意：下列哪个陈述是正确的？

考查细节理解。A. 当太阳耀斑快速地向太阳方向移动时，太阳风暴就会发生；根据“Solar storms happen when solar flares break from the sun and travel towards Earth quickly”可知说法错误。B. 在太阳风暴时极光只能从极地地区看到；根据“On the one hand ,the colourful lights of the aurora can be seen from the US and Europe, rather than just from polar areas”可知说法错误。C. 卫星系统不能工作，除非它们与太阳风暴有关；根据“But on the other hand, the storms can stop the satellite systems that control our computers, cell phones and GPS”可知说法错误。D. 2017年9月，两次太阳耀斑在3天内到达地球；根据“Sept.4, 2017, the sun has burst out two big solar flares…They hit Earth on Sept.7”可知说法正确。综合以上分析，故选D。

3.

题意：下列哪个句子可以放在 上。

考查推理判断。A. 太阳风暴对地面上的人有好处；B. 太阳风暴对地球上的人们有很大的影响；C. 太阳风暴几乎不会伤害地面上的人；D. 太阳风暴会对地球上的人造成严重伤害。but但是，表转折；根据下文“but they can put astronauts in danger但它们会使宇航员处于危险之中”，可知太阳风暴几乎不会伤害地面上的人，Solar storms hardly harm people on the ground符合语境，故选C。

4.

题意：本文使用一种_______的语气写的。

考查推理判断。angry生气的；serious严肃的；crazy疯狂的；happy高兴的。本文介绍的太阳风暴，列举了大量的事实和数据来论证太阳风暴对地球的危害，本身是一篇科普说明文，内容严谨认真，故本文使用严肃的语气来写的。可知ACD三项不合文意，故选B。