IELTS Academic Reading: Space Satellites

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Welcome to this IELTS Academic Reading practice test!

This test is designed to help you prepare for the reading section of the IELTS Academic exam.

The recommended time limit is 20 minutes.

Remember to read the passages carefully and pay attention to the specific instructions for each question type.

Good luck!

The Evolution of Satellite Technology

Recent decades have witnessed a remarkable transformation in satellite technology, revolutionizing our understanding of Earth and space. From early experimental satellites in the mid-twentieth century to today’s sophisticated network of thousands of satellites, these orbital platforms have become indispensable tools for communication, navigation, and scientific research.

Modern satellites serve diverse purposes, with communication satellites forming the backbone of global telecommunications. These geostationary satellites, positioned approximately 35,786 kilometers above Earth’s equator, maintain a fixed position relative to the planet’s surface. This strategic placement allows them to provide continuous coverage for telecommunications, broadcasting, and internet services across vast geographical areas.

Earth observation satellites, operating at lower altitudes between 700 and 1,000 kilometers, perform crucial environmental monitoring functions. These advanced platforms employ various sensors and imaging systems to track weather patterns, monitor climate change, and assess natural disasters. The data collected has proven invaluable for weather forecasting, agricultural planning, and disaster response efforts worldwide.

Navigation satellites, exemplified by the Global Positioning System (GPS), constitute another critical category. Operating in medium Earth orbit at approximately 20,200 kilometers, these satellites transmit precise timing signals that enable accurate position determination. This technology has revolutionized navigation across industries, from commercial aviation to personal transportation.

The miniaturization of satellite technology has led to the emergence of CubeSats, small satellites measuring just 10 centimeters cubed. These cost-effective platforms have democratized space access, enabling universities and small organizations to conduct space research and deploy satellite applications. Despite their small size, CubeSats perform various functions, from Earth observation to technological demonstrations.

Satellite technology continues to evolve, with recent developments focusing on reducing space debris and improving satellite longevity. Engineers are developing new propulsion systems and implementing end-of-life disposal mechanisms to ensure sustainable space operations. These advancements reflect the growing awareness of environmental responsibility in space exploration.

Questions 1-10:

Summary Completion

Complete the summary below using NO MORE THAN THREE WORDS AND/OR A NUMBER from the passage.

The development of satellite technology has created a (1) _______ of thousands of satellites. Today, different types of satellites serve various purposes. Communication satellites operate at a height of (2)_________ kilometers in (3)_________ orbit, maintaining a constant position relative to Earth.

For environmental monitoring, satellites operate at (4)_________ altitudes between 700 and 1,000 kilometers. These platforms use advanced (5)________ and imaging systems to collect data about Earth’s environment.

The (6) _________ operates at an altitude of 20,200 kilometers and provides precise (7)_________ for accurate navigation. A newer development in the field is the introduction of (8)_________, which measure only 10 centimeters cubed.

Recent technological advances focus on addressing the issue of (9)__________ and developing better (10)_________ systems for satellites.

Please write your answers in the comments section.

We’ll provide detailed feedback and explanations for each question to help you improve your performance.

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