영어1 미래엔 김성연 5과 빈칸 변형

Lesson 5 Discovering the Universe

Navigating the World of Artificial Satellites

For years, ____ have gazed at the sky, wondering about the mysteries of the world beyond.

This curiosity has led to the exploration of the universe, and as a result, ____ is no longer an unknown territory.

Since the launch of the ____ artificial satellite, Sputnik 1, in 1957, the world has witnessed the blossoming of space exploration.

Satellites and Satellite ____

As you look up at the night sky, you ____ have seen a bright, twinkling star and wondered if it was a star or a satellite.

Satellites play a vital ____ in space science, and their development has opened up a new era of space travel and research.

____ are machines launched into space that orbit the Earth.

They gather data from every corner of the globe, from wheat fields in Zambia to ____ in Antarctica.

Once ____, the satellite data are transmitted back to the ground station to be analyzed and turned into useful information that people can use in their everyday lives.

During this process, the data are reviewed by the scientists before they are sent out to ____.


Uses of Satellites

Satellites are used in various fields, such as ____, navigation, weather forecasting, scientific research, and Earth observation.

Firstly, satellite data play a crucial role in facilitating global communication by supporting TV signals, ____ broadcasts, internet connections, and telephone calls.

Additionally, navigation satellites transmit signals used by the ____ Positioning System (GPS) to determine the location of objects on Earth.

If you have a GPS ____, these satellites can help you precisely locate your destination.

Moreover, ____ collect data on weather patterns to provide forecasts.

Satellites are also extensively used for scientific research and experiments that explore the Earth’s atmosphere, other planets, and ____.

Satellite data are invaluable for observation and ____ purposes as well.

For example, ____ satellite images provide information that is useful for various purposes, including military surveillance.

And that is ____ all.

In the field of agriculture, satellites are useful for enhancing ____ management and production.

They monitor crop health and predict crop yields during the harvest ____.

It is ____ known that satellite data can help to estimate market sales based on the number of cars in parking lots.

This information helps develop ____ marketing strategies and make informed decisions for higher profits.

Most importantly, satellite images are used to locate ____ situations.

For example, in the event of a disaster, satellite images can help locate blocked roads or damaged buildings, allowing rescuers to ____ people in time.

Satellites can monitor almost any part of the globe, identifying, predicting, and managing ____ is happening around the world.


Challenges in Satellite Technology

The increasing number of satellites launched ____ orbit has caused problems, one of which is space debris.

Nearly half of the satellites in ____ are no longer in use.

However, they continue to orbit the ____ at high speeds and sometimes collide with other satellites.

These impacts have created up to 1 million pieces of space debris, which can ____ satellites already in orbit and pose a threat to future space missions.

____ problem is the light pollution from satellites.

Enormous numbers of low-flying satellites have ____ launched into space, and this is expected to continue.

Although they don’t generate their own light, these satellites and ____ of space debris reflect sunlight, contributing to the brightness of the night sky.

It is predicted that by 2030, the night sky will be up to 12 percent brighter ____ its natural darkness.

This means that in the near future we may ____ be able to see the stars anymore.

In addition, the development of satellite technology is closely tied to unequal ____ to information.

Some countries lack satellites or the capability to analyze satellite data, while others have launched hundreds of them and created a ____ pool of information.

Approximately 37 percent of the global population remains unconnected to the internet, unable to fully ____ from satellite-based services.

This difference in access results in an uneven ____ of satellite information collected from space.

In ____, while satellite technology has revolutionized the world, it still has limitations and challenges.

Addressing these issues is crucial for building a ____ future for space exploration.

The space industry also needs to share responsibility and collaborate to properly ____ satellite technology.

Only then can we ensure an ____ distribution of resources and information, benefiting all humans on Earth.

Satellites ____ by Korea

Several satellites have ____ launched in Korea, each with a specific purpose.

The first one was Korea Institute of Technology Satellite-1 (KITSAT-1), which was launched in ____ for scientific research and experimentation.

It is also ____ as “Our Star 1.”

The next one was ____ in 1995, which was Korea’s first communication satellite.

Since 1999, Korea has launched KOMPSAT-1, for various purposes, and COMS, for monitoring weather and the ____.

Then, in 2020, ____ 2 was launched for military surveillance.

In 2023, NEXTSAT-2 and seven other satellites were launched using a domestically developed rocket, ____.


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