Đề ôn thi Đề thi vào lớp 10 Trường THPT Chuyên KHTN môn Tiếng Anh - Mã đề KHTN-102

(23) __________ The solution was surprisingly simple and relied on basic physics. (24) __________

Have you ever thought about why you have different kinds of teeth? Each one is part of a team, and they (25) __________ a crucial role in digestion. Humans have four main types of teeth: incisors, canines, premolars, and molars. Each type has a specific job, from cutting to grinding. (26) __________ is why we can eat so many different kinds of food, from soft fruits to tough nuts.

The eight incisors at the front of your mouth are for biting into food. Next to them are the canines, which are the (27) __________ of all your teeth, perfect for tearing food. The main (28) __________ of the bigger teeth at the back—the premolars and molars—is to crush and grind. They are responsible for (29) __________ everything down into small, swallowable pieces. This teamwork makes digestion much easier for your stomach. Therefore, remember the old saying about taking care of them: an ounce of prevention is (30) __________ a pound of cure.

Cúc Phương, established in 1962, holds the title of Vietnam's first national park. It is a place of incredible biodiversity, home to thousands of species of plants and animals. Every year, many people, including students on school trips, visit to experience its natural beauty. However, this popularity creates a difficult question: how can the park welcome visitors while also fulfilling its primary mission of protecting its delicate ecosystem?

The park's commitment to conservation is its most important duty. This is most visible at its world-famous Endangered Primate Rescue Center. This center plays a vital role in protecting and rehabilitating rare monkey and langur species, many of which are found nowhere else on Earth. By focusing on these vulnerable animals, the park serves as a critical sanctuary, ensuring that future generations can appreciate Vietnam's unique wildlife.

While tourism brings necessary funds for conservation, it also presents negative consequences. A large number of visitors can lead to problems such as litter left on trails, noise pollution that disturbs animals, and damage to plants. Park managers work hard to manage this impact, but they depend on the cooperation of every visitor. The challenge is to educate people so that their visit helps, rather than harms, the environment they came to enjoy.

Ultimately, the future of Cúc Phương depends on responsible tourism. Visitors have a role to play by following park rules, staying on marked trails, and respecting the wildlife. By understanding that the park is not just a tourist attraction but a precious natural treasure, we can all contribute to its preservation for many years to come.

The idea of being a 'digital nomad'—working from a laptop on a sunny beach in Thailand—is a dream many young people have, often fueled by glamorous social media posts. This lifestyle seems to offer ultimate freedom and adventure. However, the reality behind the perfect photos is often much more complex. Many digital nomads struggle with inconsistent Wi-Fi and navigating difficult visa regulations, (37) __________.

Beyond these practical issues, a deeper, more personal challenge is the feeling of isolation. While constantly moving, (38) __________. This loneliness is rarely shown on Instagram. Furthermore, the pressure to constantly be productive while exploring new places can lead to burnout, (39) __________. To succeed, a digital nomad must be not only skilled in their profession but also highly resilient and organized, (40) __________.

A. building deep, meaningful friendships can be incredibly difficult

B. often having to manage time zones and client expectations across the world

C. making simple tasks unexpectedly stressful

D. leaving little energy to actually enjoy the new surroundings