Đề ôn thi Đề thi vào lớp 10 Trường THPT Chuyên KHTN môn Tiếng Anh - Mã đề KHTN-87

(23) __________. I then calmly said, 'Excuse me, I think there might be a small mistake with the change.' She recounted the money, apologized for the error, and gave me the correct amount. (24) __________

El Niño is a natural climate pattern characterized by the unusual warming of surface waters in the eastern Pacific Ocean. This event, which occurs every few years, can have a huge impact on global weather. The term 'El Niño' (25) __________ by fishermen off the coast of South America to refer to a warm ocean current they noticed.

During an El Niño, trade winds, (26) __________ normally blow west across the Pacific, weaken or reverse direction. This change allows the large area of warm water to move eastwards. (27) __________, this shift leads to dramatic changes in weather patterns. Some areas may get much more rain than usual, while others experience severe droughts. This can (28) __________ a lot of damage to agriculture and local communities. For instance, a powerful El Niño in 2016 (29) __________ a global temperature record. Scientists work hard to (30) __________ awareness about these events so people can prepare.

The concept of a 'smart home', once a dream from science fiction, is now a reality for many families. Thanks to the Internet of Things (IoT), everyday objects like lights, speakers, and air conditioners can connect to the internet. This allows us to control our home environment with a simple tap on a smartphone. In Vietnam, local companies such as FPT Smart Home and Điện Quang are making these systems more popular and accessible, offering integrated solutions for modern living.

The main appeal of a smart home is how convenient it is. Imagine you're on your way home on a hot day; you can turn on the air conditioner before you arrive. You can ask a smart speaker to play your favorite music or tell you the weather forecast without lifting a finger. These automated systems are designed to make daily routines simpler and more efficient, acting like a personal assistant that manages your household tasks.

However, this convenience comes with significant privacy risks. To work effectively, smart devices constantly collect data about your habits—what time you wake up, what music you listen to, and even conversations you have. This large amount of personal information can be a target for hackers. If a company's security is weak, your data could be stolen and misused, leaving your family's privacy vulnerable.

Ultimately, using a smart home is a trade-off between ease of use and personal security. It is not about avoiding technology, but about using it wisely. As a young user, it is crucial to understand the privacy settings on your devices. Choosing products from reputable companies that are transparent about how they use your data is the best strategy to enjoy the benefits of a smart home while minimizing the risks to your family's privacy.

Wikipedia stands as one of the internet's greatest success stories, a free encyclopedia for everyone. However, its core principle—that anyone can edit an article—is also its most significant vulnerability. (37) __________. For instance, misinformation can be subtly inserted, while others engage in 'vandalism' by adding false content.

To combat this, a dedicated community of volunteer editors works tirelessly, (38) __________. They review changes and revert vandalism. (39) __________. This ongoing struggle highlights the delicate balance Wikipedia must maintain, (40) __________.

A. Despite their efforts, the sheer volume of daily edits presents an enormous challenge

B. acting as the digital guardians of the encyclopedia's integrity

C. ensuring it remains a trustworthy resource for millions around the world

D. This open model is revolutionary but leaves the platform susceptible to manipulation