Đề ôn thi Đề thi vào lớp 10 Trường THPT Chuyên KHTN môn Tiếng Anh - Mã đề KHTN-20

(23) __________ To do this effectively, it's best to work from the top of your body down. (24) __________

An alloy is a material made by combining a metal with at least one other element, which could be another metal or a non-metal. This process is done to give the final material new and useful (25) __________. For instance, bronze is an alloy of copper and tin. Thousands of years ago, people (26) __________ this combination, leading to the Bronze Age. Today, from the stainless steel in our kitchens to the aluminum alloys in airplanes, they (27) __________ a crucial role in modern technology and industry.

So, how is an alloy made? The most common method involves heating the main metal until it becomes liquid. Then, the other elements (28) __________ added to the molten metal, and the mixture is stirred well to ensure it is uniform. A uniform mixture is very important. (29) __________, if the elements are not mixed properly, the alloy will be weak in some spots. Finally, the liquid is cooled and solidifies, creating materials (30) __________ are stronger, lighter, or more resistant to rust than pure metals.

In a bustling city like Ho Chi Minh City, where do you meet your friends to relax? For many teenagers, the answer is a local park. But these green areas are more than just social spots. Planners call them a city’s “green lungs” because they are essential for the health of the city and its people. These spaces offer hidden benefits that we often take for granted.

The most obvious benefits are environmental. Trees and plants in parks are fantastic at improving air quality. They absorb harmful pollutants from traffic and release clean oxygen. This cleaning process is vital for public health. Furthermore, parks help cool down cities. Concrete and buildings trap heat, creating an “urban heat island,” but the shade from green spaces can lower temperatures, making urban life more comfortable.

Beyond the environment, green lungs have huge social and mental benefits. They are natural meeting points that encourage community connection and reduce feelings of isolation, which can be common in dense urban areas. Having a quiet place to walk or play sports helps decrease stress and improve mental well-being. For teenagers, a safe and free public space to socialize is incredibly important.

So, the next time you are on a park bench, remember you are in a special place. These green lungs are a powerful investment in a healthier, happier, and more connected city. Protecting and creating these spaces is one of the smartest things a city can do for its future.

Many young students feel pressured to specialize in one subject very early, often seeing it as a clear path to a future career. This approach seems logical in a competitive world, but it has significant hidden dangers. (37) __________.

Early specialization can also limit a student's future options in a world that is constantly changing. (38) __________. A broader education, on the other hand, equips students with diverse skills. (39) __________. Therefore, it is far more beneficial for young people to keep their options open. (40) __________.

A. A job that is in high demand today could become automated or obsolete in the next decade

B. This allows them to make a more informed and mature decision about their career when the time is right

C. This pressure can prevent them from exploring other subjects where they might have a hidden talent or passion

D. These transferable skills, like critical thinking and problem-solving, are valuable in any profession