Đề ôn thi Đề thi vào lớp 10 Trường THPT Chuyên KHTN môn Tiếng Anh - Mã đề KHTN-160

My professor's feedback on my essay was just one word: 'unclear.' Confused and wanting to improve, I scheduled a meeting to ask for more specific guidance. (23) __________. (24) __________

Have you ever thought about the hardest-working organ in your body? It's your liver! The liver performs so (25) __________ vital tasks that it's often called the body's main filter. Its most important job is cleaning your blood. It removes harmful chemicals and toxins that you might consume from food or the environment. (26) __________, without a healthy liver, these toxins would build up and cause serious damage.

The liver is also responsible (27) __________ producing an important digestive liquid called bile. This liquid helps your body to (28) __________ the fats from the food you eat, which has a positive (29) __________ on your overall digestion. It’s clear the liver is essential. If your liver suddenly stopped working, your body (30) __________ be in serious trouble. Therefore, taking care of your liver by eating healthy food is one of the best things you can do for your health.

In sprawling urban centers, often called "concrete jungles," green spaces are scarce. This separation from nature affects our food supply, as most produce travels hundreds of kilometers to reach city markets. However, a global movement is changing this. Urban agriculture, particularly rooftop gardening, is transforming unused city spaces into productive green oases, offering a fresh solution to an old problem.

The benefits of rooftop farming are numerous. Firstly, it provides city residents with access to incredibly fresh, nutritious produce, often harvested just moments before it's eaten. This local production dramatically cuts down on the environmental costs associated with long-distance food transportation. Furthermore, these innovative gardens can become community hubs, bringing neighbors together to share in the work and the harvest, strengthening social bonds.

This trend is gaining popularity in Vietnam. In bustling cities like Da Nang and Ho Chi Minh City, community projects and private companies are helping people set up their own gardens. They move away from conventional farming methods that require large fields and instead use smart systems like hydroponics on rooftops. These local initiatives show that producing food in the city is not just a dream but a practical reality.

While starting a rooftop garden may present challenges, such as initial setup costs and the need for some technical knowledge, the movement continues to grow. For teenagers, it offers a powerful way to reconnect with their food source and understand the environment. It proves that even in a crowded city, a small patch of green on a roof can make a big difference for our plates and our planet.

The Global Positioning System, or GPS, is a technology we often take for granted for daily tasks like finding a coffee shop. However, its journey began in a very different world. (37) __________. For decades, its primary function was to give American armed forces a strategic advantage.

In the 1980s, the U.S. government decided to open the system for civilian use. (38) __________. From car sat-navs to fitness trackers, GPS quickly became essential. Yet, its most surprising impact might be on our social lives. (39) __________. This application shows just how far the technology has come from its original purpose. (40) __________.

A. Thus, a tool designed for conflict has unexpectedly become a tool for connection

B. It was initially developed by the U.S. Department of Defense as a highly precise navigation tool for military operations

C. This decision transformed society by creating a new era of personal and commercial navigation

D. Dating apps, for instance, use this location data to suggest potential partners nearby