Đề ôn thi Đề thi vào lớp 10 Trường THPT Chuyên KHXH môn Tiếng Anh - Mã đề KHXH-155

In our solar system, most planets spin like tops as they orbit the Sun. However, the planet Uranus (35) __________ differently. While others have a vertical or slightly tilted axis, Uranus is unique. It orbits the Sun while spinning on its side, almost like a rolling ball. This strange orientation has puzzled astronomers for a long time, leading them to investigate its mysterious past.

The leading theory that scientists use to explain this unusual tilt is called the 'giant impact hypothesis.' It is thought that long ago, when the solar system was still forming, (36) __________ massive object, possibly the size of Earth, collided violently with the young planet. This theory provides the most plausible explanation for the planet's current state.

(37) __________ the immense force of this collision, Uranus was effectively knocked over. The energy from the impact was so great, (38) __________ its axis to tilt by an extreme 98 degrees. One astronomer explained that the planet's rotational direction (39) __________ as a result of the impact as well. This single, catastrophic event reshaped the planet’s future forever.

This extreme tilt has dramatic consequences for Uranus's climate. The planet's poles experience 42 years of continuous sunlight, followed by 42 years of darkness. Understanding these strange seasons is a challenge that scientists have had to (40) __________ for decades. The planet's unique characteristics mean that studying it is (41) __________.

Today, the giant impact hypothesis remains the most widely accepted explanation for Uranus’s sideways spin. It highlights how violent events in the early solar system shaped the planets we see today. If that ancient collision (42) __________, Uranus would probably spin upright, much like its neighbor, Saturn.

Every day, teenagers across Vietnam and the world share their lives on social media platforms like Facebook, Instagram, and TikTok. From photos of a fun day out with friends to comments on a trending video, these online actions seem temporary. However, each one contributes to a 'digital footprint'—a permanent and public record of your online activity. This digital trail is more significant than you might think, as it can have long-lasting consequences for your future academic and professional life.

In the past, a resume and a good interview were all you needed. Today, the landscape has changed dramatically. Universities and potential employers are increasingly turning to the internet as a screening tool. In Vietnam, for example, major tech companies like FPT and Viettel are known to review a candidate's social media presence before making a hiring decision. They do this because your online profile can offer insights into your character, professionalism, and judgment that a traditional application cannot, making it a critical part of assessing your suitability for a role or a university place.

So, what exactly are recruiters and admissions officers looking for when they scan your profiles? It's not always about finding negative content. They are often searching for positive signs: evidence of maturity, creativity, a passion for a particular field, or involvement in community service. On the other hand, they are also vigilant for red flags. These can include unprofessional or inappropriate photos, discriminatory comments about race or gender, complaints about previous teachers or employers, or signs of poor judgment. For them, a candidate’s online persona is a window into their real-world character.

Fortunately, managing your digital footprint is a skill you can learn. A simple rule to follow is the 'Grandmother Test': if you wouldn't want your grandmother to see it, don't post it. It's also wise to regularly review your old posts and privacy settings. You can often untag yourself from unflattering photos or delete thoughtless comments from years ago. More importantly, you can proactively build a positive online presence. Consider creating a LinkedIn profile to showcase your academic achievements and skills, or use social media to share articles about your interests and volunteer work. This shows initiative and responsibility.

Ultimately, your digital footprint is an extension of your identity. It’s not about creating a fake or perfect online version of yourself, but about being mindful and responsible. By curating a positive and professional online image, you are not just protecting yourself from future embarrassment; you are strategically investing in your future success. In the 21st century, managing your digital identity is as crucial as any subject you learn in school.