We’ll be back to play basketball with you ________.
A.so far
B.right away
C.soon after
D.ever since
科目:高中英语 来源: 题型:
We’ll be free tomorrow,so I suggest ______ to the history museum.
A. to visit B. visiting C. we should visit D. a visit
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科目:高中英语 来源:2013届江西省南昌一中、南昌十中高三第四次联考英语试卷(带解析) 题型:阅读理解
The 2012 London Olympics had enough problems to worry about. But one more has just been added - a communications blackout caused by solar storms.
After a period of calm within the Sun, scientists have detected the signs of a flesh cycle of sunspots that could peak in 2012, just in time for the arrival of the Olympic torch in London.
Now scientists believe that this peak could result in vast solar explosions that could throw billions of tons of charged matter towards the Earth, causing strong solar storms that could jam the telecommunications satellites and interact links sending five Olympic broadcast from London.
"The Sun's activity has a strong influence on the Earth. The Olympics could be in the middle of the next solar maximum which could affect the functions of communications satellites," said Professor Richard Harrison, head of space physics at the Rutherford Appleton Laboratory in Oxfordshire.
At the peak of the cycle, violent outbursts called coronal mass ejections (日冕物质抛射) occur in the Sun's atmosphere, throwing out great quantities of electrically-charged matter. " A coronal mass ejection can carry a billion tons of solar material into space at over a million kilometres per hour. Such events can expose astronauts to a deadly amount, can disable satellites, cause power failures on Earth and disturb communications," Professor Harrison added. The risk is greatest during a solar maximum when there is the greatest number of sunspots.
Next week in America, NASA is scheduled to launch a satellite for monitoring solar activity called the Solar Dynamics Observatory (SDO), which will take images of the Sun that are 10 times clearer than the most advanced televisions available.
The Rutherford Appleton Laboratory helped to make the high-tech cameras that will capture images of the solar flares (太阳耀斑) and explosions as they occur.
Professor Richard Hold away, the lab's director, said that the SDO should be able to provide early warning of a solar flare or explosion big enough to affect satellite communications on Earth "If we have advance warning, we'll be able to reduce the damage. What you don't want is things switching off for a week with no idea of what's caused the problem," he said.
【小题1】The phrase "communications blackout" in paragraph 1 most probably refers to during the 2012 Olympics.
A.the extinguishing of the Olympic torch |
B.the collapse of broadcasting systems |
C.the transportation breakdown in London |
D.the destruction of weather satellites |
A.The most fatal matter from the corona falls onto Earth. |
B.The solar storm peak occurs in the middle of each cycle. |
C.It takes several seconds for the charged matter to reach Earth. |
D.The number of sunspots declines(减少) after coronal mass ejections. |
A.So far scientists still don’t know what caused the Solar Storms. |
B.When Solar Storm happens, you’d better turn off the electrical appliances. |
C.The risk is greatest during a solar maximum when there is the greatest number of sunspots. |
D.Early warming can help minimize the harm of the Solar Storms. |
A.take images of the solar system |
B.provide early warning of thunderstorms |
C.keep track of solar activities |
D.improve the communications on Earth |
A.Solar Storms: An Invisible Killer |
B.Solar Storms: Earth Environment in Danger |
C.Solar Storms: Threatening the Human Race |
D.Solar Storms: Human Activities to Be Troubled |
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科目:高中英语 来源:2013-2014学年高考二轮复习考前冲刺(五)英语试卷(解析版) 题型:单项填空
—Now,where is my package?
—________ We’ll be late for the train.
A.Come on!? B.Forget it!
C.Don’t worry.? D.Who knows?
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科目:高中英语 来源:2013-2014学年浙江省嘉兴市高一上学期期中考试英语试卷(解析版) 题型:单项填空
At this time next year______ our holiday in Beijing..
A. we’re having B. we’ll be having
C. we’ll have D. we’re to have
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科目:高中英语 来源: 题型:阅读理解
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