Đề ôn thi Đề thi vào lớp 10 Trường THPT Chuyên KHXH môn Tiếng Anh - Mã đề KHXH-81

A sandstorm is (35) __________ powerful natural event, most common in arid and semi-arid regions. It begins when strong winds blow across dry, loose land with very little vegetation to hold the soil in place. These storms, also known as haboobs, can appear suddenly and are a dramatic display of nature's force. The key ingredients are simple: strong wind and a large amount of dry sand or dust.

The process starts on a smaller scale. The strong winds begin to (36) __________ the loose, dry sand from the ground. (37) __________ these sand particles are so fine and light, they are easily picked up. As they are carried along, they bounce against the ground and knock other, larger particles into the air. This chain reaction causes a massive amount of sand to enter the atmosphere.

This mass of sand keeps (38) __________ as it moves across the landscape, forming a towering wall that can stretch for many kilometers. A meteorologist once explained that the wall of sand (39) __________ reach heights of several kilometers. This cloud is carried by the wind over vast distances, sometimes crossing from one country to another and affecting areas far from the original desert source.

The most immediate effect of a sandstorm is a dramatic reduction in visibility. It can become so dark that it feels like nighttime, even in the middle of the day. People caught in a sandstorm must find shelter and (40) __________ the storm until it passes. The fine particles can also cause breathing difficulties. If you (41) __________ a sandstorm approaching, you would see a massive, dark cloud on the horizon.

In conclusion, the formation of a sandstorm requires a specific set of environmental conditions. It is a powerful reminder of how wind can shape and transform the landscape. For people living in desert areas, understanding these events is crucial for safety. It is often the eerie calm (42) __________ the storm that gives the first warning of what is to come.

For many teenagers in Vietnam, the high school entrance exam, or Kỳ thi tuyển sinh lớp 10, is one of the most stressful events in their academic lives. The competition is intense, and the pressure to secure a place in a good high school is enormous. In recent years, a new generation of study aids has emerged: AI-powered tutors. Companies like HOCMAI are using artificial intelligence to help students prepare. But can these digital platforms truly offer an advantage in such a high-stakes environment?

At its core, an AI tutor works by creating a deeply personalized learning experience. Unlike a traditional textbook that presents the same information to everyone, an AI platform first analyzes a student's performance on practice questions and diagnostic tests. It identifies specific areas of strength and weakness. Based on this data, the system generates a unique study plan. For example, if a student struggles with geometry but excels at algebra, the AI will provide more geometry problems and review materials, allowing the student to focus their effort precisely where it is needed most.

The benefits of this approach are significant. Firstly, it promotes efficiency. Students no longer waste valuable time reviewing topics they have already mastered. Secondly, these platforms offer incredible flexibility; a student can study at midnight or on a bus, as long as they have a device and internet connection. Perhaps most importantly, AI tutors provide instant feedback. When students make a mistake, the system can immediately explain what they did wrong, allowing for rapid correction and learning. This continuous loop of practice and immediate feedback is a powerful tool for building confidence and skill.

However, AI tutors are not a perfect solution and have clear limitations. They lack the human touch of a real teacher. An AI cannot provide the emotional support or encouragement a student might need when feeling discouraged or overwhelmed. Furthermore, there is a risk of over-reliance. Students must still possess self-discipline to follow their study plan without a teacher's direct supervision. Finally, there is a practical barrier: access to a stable internet connection and a suitable device is necessary, which may not be available to every student.

In conclusion, AI tutors should be viewed as powerful supplements, not substitutes for traditional learning. They offer a data-driven, efficient way to prepare for exams, but they cannot replace the role of a dedicated teacher or the importance of a student's own hard work and motivation. The students most likely to succeed will be those who intelligently combine the focused practice offered by AI with the guidance and support they receive from their teachers and their own consistent effort.