Đề ôn thi Đề thi vào lớp 10 Hà Tĩnh môn Tiếng Anh - Mã đề HTI-46

Have you ever noticed small bumps on your skin when you're cold or scared? These are called goosebumps. This reaction, known scientifically as piloerection, happens when tiny muscles at the base of (24) __________ hair follicle contract. This contraction causes the individual hair to (25) __________ up straight from the skin, creating the familiar bumps.

But why does this happen? In our animal ancestors, this was very useful. For example, if an early human felt cold, their raised hairs (26) __________ an insulating layer of air, helping them conserve body heat. It was a simple, biological way to (27) __________ with dropping temperatures. The reaction is not limited (28) __________ feeling cold; strong emotions like fear or excitement also trigger it. For an animal, this could make it look bigger and more threatening to a predator. (29) __________, since modern humans have much less body hair, this warming effect is not very significant. Goosebumps are simply a fascinating leftover from our evolutionary past.

The rise of social media platforms like TikTok and YouTube has created a new kind of celebrity: the 'teenfluencer'. This modern phenomenon involves young people, often not yet adults, building huge online followings and creating personal brands. They share everything from video game streams to daily vlogs, turning their hobbies into potential careers before they even finish high school. This digital stage offers incredible opportunities for creativity and entrepreneurship.

In Vietnam, this trend is clearly visible with creators like Jenny Huynh. At a young age, she captured the attention of millions of Vietnamese teenagers by sharing content about her life in America. Her videos, which are often simple and relatable, resonate deeply with her peers. Fans feel a personal connection to her, and their support has helped her become one of the most well-known young creators in the country, proving that you don't need a TV show to be a star.

However, growing up in the public eye comes with significant challenges. Teenfluencers face immense pressure to constantly create new content and maintain their popularity. They also deal with negative comments and online safety risks that most teenagers don't have to worry about. The line between a personal life and a professional brand can become blurry, which can be stressful for anyone, especially someone still navigating their teenage years.

Ultimately, the life of a teenfluencer is a balancing act. It represents a new, exciting path to success, but it also comes with unique pressures and dangers. For the millions of teens watching, it’s a powerful reminder that the lives we see on screen are often more complicated than they appear, requiring both talent and remarkable resilience.