孙燕姿的快歌职称英语考试理工类模拟试题第5套：阅读判断

2021年1月17日发(作者：先烈)
职称英语考试/模拟试题

2016年职称英语考试理工类模拟试题第
5套：阅读判断
第2部分：阅读判断。 下面的短文后列出了7个句子，请
根据短文的内容对每个句子做出判断：如果该句提供的是
正确 信息，请选择A;如果该句提供的是错误信息，请选择
B;如果该句的信息文中没有提及，请选择C。
The Northern Lights
The Sun is stormy and has its own kind of
weather. It is so hot and active that even the
Sun’s gravity cannot hold its atmosphere in check!
Energy flows away from the Sun toward the Earth in
a stream of electrified particles that move at
speeds around a million miles per hour. These
particles are called plasma, and the stream of
plasma coming from the Sun is called the solar
wind. The more active the Sun, the stronger the
solar wind.
The solar wind constantly streams toward the
Earth, but don’t worry because a protective
magnetic field surrounds our planet. The same
magnetic field that makes your compass point north
also steers the particles from the Sun to the north
and south poles. The charged particles become
trapped in magnetic belts around the Earth. When a
large blast of solar wind crashes into the Earth’s
magnetic field, the magnetic field first gets
squeezed and then the magnetic field lines break
and reconnect.
The breaking and reconnecting of the magnetic
field lines can cause atomic particles called
electrons trapped in the belts to fall into the
Earth’ s atmosphere at the poles. As the electrons
fall to the Earth, they collide with gas molecules
in the atmosphere, creating flashes of light in the
sky. Each atmospheric gas glows a different color.
Oxygen and nitrogen glows red and green and
nitrogen glows violet-purple. As these various
colors glow and dance in the night sky, they create
the Northern Lights and the Southern Lights.