Đề ôn thi Đề thi vào lớp 10 Trường THPT Chuyên KHXH môn Tiếng Anh - Mã đề KHXH-162

Your mouth is home to a team of specialized tools designed for the first step of digestion. Not all teeth are the same; in fact, their different shapes and sizes are related to their specific jobs. Having a variety of teeth is a biological (35) __________ that allows us to eat a wide range of foods, from soft fruits to tough meats. This variety ensures that food is properly prepared for the stomach.

The journey begins with the incisors. These are the eight thin, flat teeth at the (36) __________ of your mouth, four on top and four on the bottom. Their main purpose is for cutting food. Think of them as the scissors of your mouth. Without them, you (37) __________ not be able to bite into an apple or a sandwich with ease.

Next to the incisors are the canines, which are the sharpest teeth in your mouth. Humans have four canines, two on the top and two on the bottom. They have a pointed surface designed specifically for tearing food, especially tougher items like meat. (38) __________ makes them similar to the teeth found in many carnivorous animals.

At the back of the mouth are the premolars and molars. Molars are the (39) __________ and strongest of all the teeth. Their large, flat surfaces have ridges that are perfect for chewing and grinding. Their primary function is to (40) __________ food into small, easily swallowable pieces before it continues its journey through the digestive system.

Protecting all these teeth is a hard substance called enamel. (41) __________ is this layer important for preventing cavities, but it is also the hardest substance in the human body. (42) __________, each type of tooth performs a unique and vital task, working together as a highly efficient team to begin the process of digestion.

Have you ever found what looks like the perfect café on Google Maps, only to see a shocking 1.2-star rating? The rating may not be about the coffee. You might be looking at the result of "review bombing," a modern form of online protest where a large group deliberately leaves negative reviews to punish a business for a perceived wrongdoing. In Vietnam, a restaurant can see its rating collapse overnight after a single viral video of poor customer service circulates on social media, regardless of the food's quality.

Online review platforms were created to help consumers make better choices. Whether on Google, Tripadvisor, or local apps, we rely on the experiences of others to decide where to eat or what to buy. This system is built on the trust that the reviews we read are based on authentic experiences from real customers. For businesses, a positive online reputation is crucial for attracting clients and building a successful brand. Honest feedback, both good and bad, helps them improve.

A review bombing campaign is often triggered by a single incident that captures public attention, like a controversial statement by the owner. The story spreads rapidly online, and people who have never set foot in the establishment join in, leaving 1-star reviews as a form of protest. The sudden flood of negative reviews can be devastating. It can scare away potential customers, leading to a sharp drop in revenue and damaging the business's hard-earned reputation. The impact is immediate and often overwhelming.

The ethics of this practice are complicated. Supporters argue that it is a powerful tool for consumer activism, a way for the public to hold businesses accountable for unethical behavior. It gives a collective voice to individuals who feel wronged. On the other hand, critics argue that it is an unfair and destructive practice. It often punishes an entire team of innocent employees for one person's mistake and undermines the integrity of the review system, making it harder for everyone to find trustworthy information.

Ultimately, review bombing blurs the line between genuine criticism and a coordinated attack. As a teen navigating the digital world, it’s vital to be a critical consumer. When you see a business with an unusually low rating and a surge of recent 1-star reviews, don't just look at the score. Read the comments. Is the criticism about the product or about a separate controversy? By thinking critically, you make smarter choices and contribute to a more responsible online community.