IELTS Master Class
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Week 1
L1. Lesson 13 Activities|3 Exam Practice -
L1. Lesson 22 Activities|1 Assessment
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L1. Lesson 34 Activities|4 Exam Practice
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Week 2L1. Lesson 42 Activities|1 Assessment
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L1. Lesson 54 Activities|4 Exam Practice
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L1. Lesson 62 Activities|1 Assessment
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Week 3L1. Lesson 73 Activities|2 Exam Practice
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L1. Lesson 82 Activities|1 Assessment
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L1. Lesson 93 Activities|3 Exam Practice
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Week 4L1. Lesson 102 Activities|1 Assessment
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L1. Lesson 113 Activities|3 Exam Practice
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L1. Lesson 122 Activities|1 Assessment
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Week 5L1. Lesson 132 Activities|2 Exam Practice
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L1. Lesson 142 Activities|1 Assessment
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L1. Lesson 152 Activities|2 Exam Practice
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Week 6L1. Lesson 162 Activities|1 Assessment
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L1. Lesson 171 Activity|1 Assessment
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L1. Lesson 182 Activities|1 Assessment
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Week 7L1. Lesson 192 Activities|1 Assessment
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L1. Lesson 202 Activities|1 Assessment
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L1. Lesson 213 Activities|3 Exam Practice
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Week 8L1. Lesson 222 Activities|1 Assessment
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L1. Lesson 232 Activities|1 Assessment
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L1. Lesson 241 Activity|1 Assessment
Participants 1
Reading: Diagram Label Completion Questions Warmer
In this warmer activity, you will learn how to answer Diagram Label Completion questions questions from the IELTS reading exam.
1. Watch and complete the interactive video below to complete this warmer:
2. To complete this warmer, you only need to complete the interactive video above. However, you should also attempt the exam questions below for extra practice.
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Earned Point(s): 0 of 0, (0) A. The Earth’s atmosphere is a dynamic shield enveloping our planet, playing a pivotal role in sustaining life and shaping the climate. Comprising various layers extending from the Earth’s surface into outer space, this gaseous envelope creates a complex and intricate system that regulates temperature, filters harmful radiation, and fosters the conditions necessary for life as we know it. B. When we look up into the sky, we often see it as a vast expanse of blue or sometimes decorated with clouds. What we may not realize is that this visible part of the atmosphere is known as the troposphere. It is the closest layer to Earth’s surface, extending up to approximately 12 kilometers (7.5 miles). In this layer, weather phenomena occur, and it’s characterized by a decreasing temperature with altitude. On average, the temperature drops by about 6.5 degrees Celsius per kilometer of altitude. The troposphere also contains most of the atmosphere’s water vapor and is the primary arena for weather patterns, making it crucial for sustaining life on Earth. Above the troposphere lies the stratosphere, extending from about 12 to 50 kilometers (7.5 to 31 miles). Unlike the troposphere, the temperature in the stratosphere increases with altitude due to the presence of ozone. The ozone layer, located within the stratosphere, absorbs and filters out harmful ultraviolet (UV) radiation from the sun, which is vital for protecting life on Earth. The stratosphere is also home to the jet streams, strong winds that influence weather patterns. C. As we venture further upwards, we encounter the mesosphere, situated at altitudes ranging from 50 to 85 kilometers (31 to 53 miles). The mesosphere is characterized by a significant drop in temperature with increasing altitude, and temperatures can plummet to around -90 degrees Celsius (-130 degrees Fahrenheit). This layer is where meteoroids burn up upon entering the atmosphere, creating the mesmerizing spectacle of shooting stars. Beyond the mesosphere, we enter the thermosphere, extending from approximately 85 kilometers (53 miles) to the boundary of space, around 600 kilometers (375 miles) and beyond. Despite its high altitude, the thermosphere experiences extremely high temperatures due to the absorption of solar energy. In the thermosphere, temperatures can exceed 1,000 degrees Celsius (1,832 degrees Fahrenheit), but it’s important to note that this layer is not as hot as it sounds. The high temperature refers to the energy absorbed from the Sun. The International Space Station orbits in the lower part of the thermosphere. D. The outermost layer of the Earth’s atmosphere, the exosphere, begins at the upper boundary of the thermosphere and extends into space. It is composed of extremely low-density gas molecules and serves as a transition zone between Earth’s atmosphere and the vacuum of space. In the exosphere, gas particles can travel long distances without colliding with one another and gradually dissipate into space. E. The composition of the Earth’s atmosphere is equally as intriguing as its layers. The atmosphere primarily consists of a mixture of gases, each with its own unique properties and contributions to the planet’s well-being. The most abundant gas is nitrogen (N2), making up approximately 78% of the atmosphere. Oxygen (O2) follows closely behind, comprising about 21% of the atmospheric composition. These two gases are crucial for supporting life on Earth, as they are essential for respiration and combustion. F. Additionally, the atmosphere contains trace amounts of other gases, including argon, carbon dioxide, and various other gases in even smaller quantities. These trace gases play vital roles in maintaining the Earth’s climate and atmospheric balance. For instance, carbon dioxide is a greenhouse gas that helps regulate the planet’s temperature by trapping heat from the sun, preventing it from escaping into space. It’s a delicate balance of these gases that ensures the Earth’s climate remains suitable for life. G. In conclusion, the Earth’s atmosphere is a multi-layered marvel that not only provides us with the air we breathe but also acts as a protective shield against the harsh elements of outer space. Its layers, from the troposphere to the exosphere, exhibit unique characteristics, temperature variations, and functions. Simultaneously, its composition, primarily comprising nitrogen and oxygen, with trace amounts of other gases, underscores the critical role it plays in sustaining life and maintaining the planet’s climate. Understanding these aspects of the Earth’s atmosphere is essential for comprehending our planet’s dynamic and interconnected systems that support and protect life. Questions 1-6 Complete the diagram below. Choose NO MORE THAN THREE WORDS from the passage for each answer. Write your answers in the spaces below the diagram. 1. 2. 3. 4. 5. 6. Reading: Diagram Label Completion Questions Warmer
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Unravelling the Mysteries of The Earth’s Natural Defence