Đề ôn thi Đề thi vào lớp 10 Trường Phổ thông Năng khiếu môn Tiếng Anh - Mã đề PTNK-96

Mercury, the smallest planet in our solar system, is also the closest to the Sun. It is well-known for its extreme temperatures, which are more varied than on any other planet. This reputation isn't just a guess; it's a scientific fact based on its unique planetary characteristics. Mercury offers a fascinating case study in how a planet’s environment is shaped by its position and composition.

The first reason for these dramatic differences is its proximity to the Sun. Because it is so near the Sun, it is much (21) __________ than Earth during its day. Temperatures on the sun-facing side can reach an incredible 430°C, hot enough to melt lead. (22) __________ makes it impossible for liquid water to exist on most of the surface, creating a barren, rocky landscape.

However, Mercury's night side tells a completely different story. The temperature can drop to a shocking -180°C. This happens because Mercury has almost no atmosphere to trap heat. Without a thick blanket of gas, heat can easily escape into space once that side of the planet rotates away from the Sun. This lack of an atmosphere is the primary reason for the planet's dramatic temperature fluctuations.

We can contrast this with Earth. Unlike Mercury, our planet is able to maintain a stable climate because its atmosphere traps the Sun's heat like a greenhouse. Not only does Earth's atmosphere provide breathable air, but (23) __________ regulates temperature, preventing such extreme swings from day to night. This makes Earth suitable for life.

(24) __________, Mercury's story is one of dualities: scorching heat due to its closeness to the Sun and freezing cold due to its lack of a protective atmosphere. These two factors combine to make Mercury a true planet of extremes, one of the most inhospitable yet interesting worlds in our solar system.

Social media platforms, traditionally entertainment hubs, are now transforming into dynamic learning environments. For many students, the line between fun and education is blurring as a global 'Edu-Tuber' movement gains momentum. Creators produce high-quality educational videos on YouTube and TikTok, covering everything from quantum physics to literary analysis. These digital educators offer a vast, free knowledge library, making learning accessible globally and reshaping how information is shared and consumed. This phenomenon highlights a significant shift in how young people access and engage with educational content outside traditional classrooms.

This trend resonates strongly with students in Vietnam. When grappling with challenging subjects or seeking alternative explanations, many Vietnamese teens instinctively turn to YouTube tutorials. Beyond international channels, a vibrant local scene of Edu-Tubers specifically explains topics from the Ministry of Education and Training (MOET) curriculum. These local creators often present lessons in a more relatable and engaging way than traditional textbooks, using animations, real-life examples, or step-by-step problem-solving methods that genuinely click with learners.

The appeal of these digital learning tools lies in their remarkable flexibility and diverse formats. [I] Unlike rigid classroom schedules, students can access lessons anytime, anywhere, pausing or replaying as needed for comprehension. [II] They simplify complex theories, offer alternative explanations, and provide visual demonstrations, effectively bridging gaps left by conventional teaching methods. [III]

However, the accessibility and abundance of online information also come with a crucial caveat: not everything found online is accurate or reliable. [IV] While many creators are dedicated educators, others might present misleading or incomplete information. For a 14 or 15-year-old, developing the ability to critically evaluate content is paramount. This means actively questioning the source's credibility, cross-referencing information with reputable academic websites, and prioritizing evidence-based content over unsubstantiated opinions.

Ultimately, platforms like YouTube and TikTok hold immense potential to revolutionize student learning, transforming passive recipients into active, self-directed learners. They offer powerful resources complementing traditional schooling, deepening understanding, and even sparking new interests. By harnessing these tools wisely, recognizing their strengths, and exercising critical judgment, students can truly leverage screen time beyond mere entertainment. These platforms can become invaluable allies in mastering homework, excelling in exams, and cultivating a lifelong curiosity for knowledge.