Đề ôn thi Đề thi vào lớp 10 Trường Phổ thông Năng khiếu môn Tiếng Anh - Mã đề PTNK-55

Tornadoes are one of nature's most (21) __________ and destructive weather phenomena. They are rapidly rotating columns of air that touch the ground, often forming during powerful thunderstorms. While they can occur in many parts of the world, they are most frequent in an area of the central United States known as "Tornado Alley". This is because the specific atmospheric ingredients required for their formation are commonly found there.

The primary recipe for a tornado begins with the meeting of two very different air masses. Warm, moist air, typically moving north from the Gulf of Mexico, collides with cool, dry air moving south from Canada. Without this contrast, a powerful thunderstorm simply can not form. This clash of air masses is what sets the stage for severe weather, providing the energy and moisture needed.

The interaction between these air masses is critical. Because the warm air is less dense, it begins to rise rapidly through the cooler air above it. Rarely (22) __________ such a perfect combination of conditions occur outside of these specific regions. At the same time, winds at different altitudes blow at different speeds or in different directions. This difference in wind speed and direction is known as wind shear.

This is the crucial step that causes the rising air to begin to spin like a horizontal tube. As the warm air continues to rise within the thunderstorm, this spinning tube can be tilted into a vertical position. If this rotation becomes organized and intense enough, it can form a visible funnel cloud that stretches down from the storm cloud. The funnel cloud becomes a tornado, often the strongest part of the storm, only when it makes contact with the ground.

Once it has touched down, the tornado (23) __________ its destructive path over the landscape, driven by the parent thunderstorm. (24) __________, the unique geography of the central United States, with no major east-west mountain range to block air masses, creates a perfect "tornado alley" where these violent storms can thrive. Understanding these conditions helps meteorologists predict when and where tornadoes are most likely to form.

The dream of studying abroad, earning a degree from a prestigious international university, appeals to millions globally. It offers unique life experiences, diverse teaching styles, and a gateway to a global job market. [I] However, for young teens and their families, a crucial question arises: is an overseas degree truly worth the significant financial and personal investment?

A primary advantage of studying overseas is exposure to diverse academic environments. Students encounter new teaching methods, often emphasizing critical thinking and independent research. Immersion in a foreign language and culture fosters adaptability and a broader worldview. This global perspective is invaluable, preparing individuals for an interconnected world. [II] Additionally, networking with peers and faculty from various backgrounds opens doors to future collaborations and enriching insights, enhancing the entire educational journey.

Beyond the classroom, an international degree significantly enhances career prospects. Employers often value the adaptability, problem-solving, and cross-cultural communication skills developed abroad. Graduates gain access to a global job market, potentially securing positions unavailable domestically. For Vietnamese students, a degree from an internationally recognized institution can confer a competitive edge and prestige upon their return, or enable them to pursue professional careers abroad. [III] This holistic development, including increased independence, contributes to long-term success.

However, the "worth" of this investment must be carefully weighed against its substantial costs. Tuition fees alone run into tens of thousands of dollars annually, compounded by living expenses like accommodation, food, and transport in often expensive cities. Families must also consider visa fees, health insurance, and travel. Beyond finances, students may face homesickness, cultural adjustment, and intense academic rigor in a foreign language. It's a significant commitment demanding careful financial planning and emotional preparedness. [IV]

Ultimately, deciding if an overseas degree is worth the investment is a highly personal and family decision. For a 14 or 15-year-old contemplating university options, understanding these pros, cons, and associated costs now is crucial. While benefits like global experience, enhanced career opportunities, and profound personal growth are immense, they come with substantial financial and emotional commitments. Thorough research, honest discussions about family resources, and clear individual goals will empower students to make an informed choice about their future.