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
科目：初中英语 来源：浙江省金华市2020年中考英语试卷 题型：阅读单选
Very often, when we see young people sitting there, looking at the screen of a mobile phone and smiling, we may think nothing is wrong. But when we come to the question "how much time do they actually spend on media(传播媒介）daily?", the answer is surprising: young people spend about nine hours every day using media, and this only includes media used for enjoyment.
Today's young people seem to have become crazy multitaskers. They often use media when doing other activities. Some watch TV when doing homework, some text(发短信), and some others listen to music. But what do young people think of this? A research showed that two thirds of them believed watching TV or texting had no influence on their schoolwork. Half of them thought using social media made no difference. However, researches have given a different answer: "media multitaskers" did worse in tests.
Scientists did a research among more than 400 students. It shows that those who text a lot have more trouble sleeping and do worse in their study. In another research, students who didn't text during a lesson took down a lot more notes than those who were texting. A similar research also found that students who texted when doing schoolwork had lower overall(总体的）grades.
According to a research, if a kid uses social media a lot, especially at night, he or she will sleep worse and feel more nervous and depressed(消沉的). On the one hand, young people stay up late to check messages and information. They may also be woken up by messages they receive. On the other hand, even the light from a screen could influence their sleep. Some other researches also show that children who use media at night go to bed later, get fewer hours of sleep each week, and become sleepy more easily during the daytime.
1.The answer to the question in Paragraph l is surprising because young people ______.
A.spend about 9 hours on media for fun daily
B.often look at their mobile phones and smile
C.always sit there for a long time doing nothing
D.use different kinds of media to relax themselves
2.The underlined word "multitaskers" in Paragraph 2 refers to people who___________.
A.ask a lot of questions B.use different media for learning
C.have several mobile phones D.do several tasks at the same time
3.From the passage we can learn that a kid will probably ________ if he or she uses social media a lot at night.
A.become more worried B.get more excited
C.take fewer notes in class D.sleep much better
4.What is the passage mainly about?
A.Social media is very popular among young people.
B.Using media too much has a bad influence on young people.
C.The use of social media has both advantages and disadvantages.
D.Mobile phones are the main tools students use for school learning.
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①get the best room for the best view
②book a room with a kitchen to cook by ourselves
③find the best time to book the cheapest ticket
④take the bus or subway whenever possible
⑤look for the most expensive local restaurants
A.①②③ B.②③④ C.②④⑤
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Which pair of the words with the underlined letters has the same sound?
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Those black trousers are nine dollars. (对划线部分提问)
______ ______ are those black trousers ?
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—This article is too hard to understand. I wonder ______.
—Maybe you can turn to Mr.Wu. He reads a lot and is ready to help.
A.who I can ask for help B.whether I can ask for help
C.who can I ask for help D.whether can I ask for help
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—It will be worse ______ we take action to protect the environment.
A.if B.unless C.because D.although
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—Which is your brother?
—The big man, smartly dressed________a suit and tie.
A.on B.with C.for D.in
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Where are the speakers?
A.
B.
C.
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