Đề Tiếng Anh ôn thi vào lớp 10 Hà Nội năm 2025- Mã đề thi HN-141

The Ocean''s Guardians: Sharks

Sharks are vital for the health of our oceans. Firstly, as apex predators, they help to regulate the populations of other marine species. By keeping populations in check, sharks prevent (19) __________ species from becoming too dominant and depleting resources. This delicate balance is essential for maintaining (20) __________ healthy and thriving ecosystem.

Furthermore, sharks play a crucial role in keeping the ocean clean. They often feed on sick and injured animals, (21) __________ prevents the spread of disease and keeps the ecosystem healthy. (22) __________, their scavenging activities help to recycle nutrients back into the food web. Protecting sharks is therefore essential (23) __________ ensuring the overall health and productivity of our oceans for generations to come. We must learn to appreciate these creatures and understand the (24) __________ role they play in our planet''s well-being.

The Sun, a giant ball of burning gas, is the center of our solar system. Its immense gravity holds the planets in their orbits and its light and heat make life on Earth possible. This massive star is composed mainly of hydrogen and helium, constantly undergoing a process called nuclear fusion where hydrogen atoms fuse to form helium, releasing tremendous energy in the process.

The Sun''s surface, known as the photosphere, is a constantly churning sea of plasma that reaches temperatures of around 5,500 degrees Celsius. Darker, cooler areas called sunspots appear on the photosphere, caused by intense magnetic activity. These sunspots often give rise to solar flares, sudden bursts of energy that can disrupt communication systems on Earth.

Although the Sun appears incredibly bright and hot, it is actually classified as a yellow dwarf star. Its lifespan is estimated to be around 10 billion years, and it is currently about halfway through its life cycle. Eventually, the Sun will run out of fuel for nuclear fusion and expand into a red giant, engulfing the inner planets, including Earth.

Understanding the Sun is crucial for understanding life on Earth and the dynamics of our solar system. Scientists continue to study the Sun''s activity, aiming to predict solar flares and other events that could impact our planet.

The development of electronic instruments in the 20th century marked a turning point in the evolution of music. This innovation paved the way for new genres like electronic dance music (EDM), (37) __________. EDM encompasses a wide range of styles, each with its own distinctive characteristics and sounds.

One of the earliest forms of EDM was disco, which emerged in the 1970s. Characterized by its catchy melodies and four-on-the-floor beat, (38) __________. Disco''s popularity declined in the early 1980s but its influence can still be heard in many contemporary EDM subgenres.

(39) __________. House music, originating in Chicago, is known for its repetitive rhythms and soulful vocals, while techno, with its roots in Detroit, is characterized by its darker, more industrial soundscapes. These genres, along with others like trance and drum and bass, demonstrate the vast sonic possibilities of electronic music.

From the underground clubs of the 1970s to massive music festivals today, EDM has come a long way. (40) __________, attracting millions of fans worldwide and leaving an undeniable mark on the global music landscape.

A. It has become a global phenomenon

B. The 1980s and 1990s saw the emergence of several new EDM genres.

C. a genre that relies heavily on electronically generated sounds

D. disco quickly gained mainstream appeal and dominated dance floors worldwide.