Đề ôn thi Đề thi vào lớp 10 Trường THPT Chuyên KHXH môn Tiếng Anh - Mã đề KHXH-123

A USB flash drive, also known as a thumb drive or memory stick, is a common data storage (35) __________ that has become essential in our digital world. Its small size, similar to a person's thumb, makes it incredibly easy to carry around. The primary function of a flash drive is (36) __________ data, such as documents, photos, and videos, from one computer to another without needing an internet connection. It acts as a portable hard drive, allowing users to keep their important files with them at all times.

Using a USB flash drive is very straightforward. You simply (37) __________ into a computer's USB port, which is a standard rectangular connection point found on all modern computers. Once connected, the computer's operating system automatically recognizes it as (38) __________ removable drive, and you can access the files stored on it. This plug-and-play capability means you don’t need to install any special software to make it work.

The technology inside a flash drive is called flash memory. This type of memory is non-volatile, which is a technical way of saying it does not require power to maintain the information stored on it. (39) __________, a flash drive can keep your data safe for years, even when it is not connected to a computer. This makes it a reliable medium for backing up important work or personal memories.

Their small size and increasingly large storage capacities make them extremely (40) __________ for students and professionals. Imagine needing to move a large presentation from your home computer to a school computer. For anyone needing to share a project or a collection of photos with friends, using a flash drive is (41) __________.

It is difficult to imagine modern life without these tiny yet powerful gadgets. If flash drives had not been invented, sharing large digital files (42) __________ much more difficult and far less efficient. They remain a simple, effective, and indispensable tool for managing and transporting data in our increasingly connected society.

For many teenagers, looking in the mirror and seeing a new pimple is a frustrating, yet common, part of life. Acne affects adolescents all over the world, often appearing at a time when self-esteem and confidence are still developing. In places like Vietnam, where skincare is a major topic of conversation among young people, the pressure to have perfect skin can be intense. With countless influencers on YouTube and TikTok offering advice, it’s easy to feel overwhelmed and confused about the right way to care for your skin.

To effectively manage acne, it's helpful to understand its fundamental causes. Acne is not simply about being 'unclean.' It is primarily a hormonal condition. During the teenage years, the body produces more hormones called androgens, which signal the skin's glands to produce more oil, or sebum. When this excess sebum mixes with dead skin cells, it can clog pores. This clogged pore environment is the perfect place for a type of bacteria, known as P. acnes, to grow, leading to the inflammation and redness we see as pimples.

Instead of trying complicated 10-step routines seen online, experts recommend a simple, consistent approach. A good starting point consists of three key steps: cleanse, treat, and moisturize. Use a gentle cleanser twice a day to remove excess oil without stripping the skin. For the 'treat' step, look for products containing active ingredients like salicylic acid or benzoyl peroxide. These can help unclog pores and reduce bacteria. While benzoyl peroxide can be very effective, it can also be drying, so it's crucial to follow up with the third step: moisturizing. Even oily skin needs a moisturizer to stay balanced. The key is to choose one that is 'non-comedogenic,' meaning it won’t clog your pores.

It is also important to separate fact from fiction. Many common beliefs about acne are actually myths that can make the problem worse. For example, squeezing pimples is a bad idea; it can push bacteria deeper into the skin, leading to more inflammation and even scarring. Another myth is that you must buy very expensive products to see results. In reality, consistency with affordable, well-formulated products is far more important. Finally, while a balanced diet is good for overall health, the link between specific foods like chocolate or French fries and acne is weak for most people. The focus should remain on a solid skincare routine.

Ultimately, dealing with acne is a journey that requires patience. There are no overnight cures. By understanding the causes and adopting a simple, consistent routine, you can take control of your skin's health. Remember that having pimples is a normal part of being a teenager, not a reflection of your worth.