Đề ôn thi Đề thi vào lớp 10 Hà Nội môn Tiếng Anh - Mã đề HN-16

(23) __________ On two separate occasions, it proved to be an indispensable tool. (24) __________

Before the Romans, builders faced a major challenge. They wanted (25) __________ larger and stronger buildings, but their techniques were limited. They mostly used the 'post-and-lintel' system—two vertical posts with a horizontal beam on top. This was simple, but not very strong over long distances.

The invention of the arch was a game-changer. Arches were much (26) __________ than straight beams and could support more weight. The secret was their curved shape and a special stone at the very top, the keystone. This design (27) __________ a key role in distributing weight down to the ground. Because of their strength, Roman constructions like aqueducts and the Colosseum have truly (28) __________ the test of time. They transferred water and hosted huge events, fundamentally changing Roman life. (29) __________ enabled the Romans to build on a scale never seen before. The Roman arch wasn't just an improvement; it was a completely (30) __________ design that influenced architecture for centuries.

Imagine scrolling online and seeing a video of your favorite singer saying something shocking. It looks real, but is it? Welcome to the world of deepfakes, highly realistic videos created by artificial intelligence (AI). This technology can make it seem like anyone has said or done anything, creating a huge challenge for telling what is real from what is fake online.

The threat is growing. While often used for fun, deepfakes can also be used in sophisticated scams and to spread misinformation. In Vietnam, for example, cybersecurity experts like Ngo Minh Hieu (HieuPC) and government authorities have begun public campaigns to warn people about these dangers. Their goal is to prevent citizens from losing money or believing false stories that are designed to cause confusion and distrust.

So, how can you spot a fake? Look for small clues. Deepfake videos often have strange details, like unnatural eye blinking, weird shadows or lighting, or a robotic-sounding voice. It is important to look closely and think critically before you believe or share something. Taking a moment to check if a video is authentic can protect you and others from being tricked by this advanced technology.

Ultimately, the best defense against deepfakes is a sharp mind. As technology evolves, we must also evolve our skills as digital citizens. By questioning what we see, verifying information from trusted sources, and thinking before we share, we can help build a safer and more trustworthy online environment for everyone. Being a critical thinker is no longer optional; it is essential.

Volunteering is often seen as a noble act, but it holds a hidden paradox. Many dedicated individuals pour their hearts into community work, driven by a deep desire to help. Initially, these volunteers are the most active members, (37) __________. This heavy workload, combined with the emotional investment, slowly drains their energy.

Eventually, they start feeling detached and ineffective, (38) __________. What once brought them joy now feels like an overwhelming burden. This cycle is particularly dangerous because it affects the most passionate volunteers, (39) __________. To avoid this, it's crucial for organizations to support their volunteers, (40) __________.

A. leading them to question the impact of their efforts

B. ensuring they maintain a healthy balance and don't overcommit

C. leaving a significant gap in the community they served

D. taking on more responsibilities than anyone else