Đề ôn thi Đề thi vào lớp 10 Trường THPT Chuyên KHTN môn Tiếng Anh - Mã đề KHTN-167

(23) __________ . These combined mental and social benefits explain why a direct link is often drawn between a city's public green spaces and the health of its population. (24) __________

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 (25) __________ hair follicle contract. This contraction causes the individual hair to (26) __________ 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 (27) __________ an insulating layer of air, helping them conserve body heat. It was a simple, biological way to (28) __________ with dropping temperatures. The reaction is not limited (29) __________ 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. (30) __________, 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.

In Vietnam, having your Facebook or Garena account hacked is a common fear for many teenagers. These online accounts are not just for fun; they are central to social lives and hobbies. Cybersecurity experts, like those at Bkav, constantly warn that Vietnamese users are a major target for cybercriminals. But why is there so much focus on these specific accounts? Understanding the reasons is the first step toward better online safety.

The primary reason is that these accounts are incredibly valuable. A high-level gaming account can be sold for a significant amount of money. A Facebook account with many friends and a long history is also a goldmine for criminals. They can use it to run advertising scams, send fraudulent messages to the user's friends asking for money, or even sell the personal data stored within it to other malicious groups.

Hackers use two main categories of methods to steal accounts: technical attacks and social engineering. Technical attacks involve using malicious software like viruses or keyloggers to steal your password as you type it. Social engineering, however, is more about tricking the user. A common tactic is phishing, where a hacker sends a message with a link to a fake login page that looks identical to the real Facebook or Garena site. When you enter your details, the hacker captures them.

Protecting yourself requires being proactive and skeptical. Always use strong, unique passwords for different sites and enable two-factor authentication (2FA) whenever possible. This adds an extra layer of security. Most importantly, never click on suspicious links or download files from unknown sources. Your online security is ultimately in your hands, and a little bit of caution goes a long way.

Noise-cancelling headphones are an amazing invention for anyone needing to concentrate in a loud environment. They allow students and professionals to create a personal sanctuary of silence, blocking out distractions. This is especially useful in open-plan offices or busy public spaces. (37) __________. While this bubble is perfect for deep work, it can also act as a social barrier.

We might miss a friendly greeting from a colleague or an important safety announcement on public transport. (38) __________. The paradox is that a tool designed to improve our productivity can unintentionally weaken our social connections. (39) __________. Ultimately, finding a healthy balance is key to using this technology wisely. (40) __________.

A. These small missed interactions can add up over time

B. We should be mindful of when to tune in and when to tune out

C. However, their constant use can lead to a significant downside

D. This can lead to feelings of loneliness and disconnection from our immediate community