Đề ôn thi Đề thi vào lớp 10 Hải Phòng môn Tiếng Anh - Mã đề HPG-28

A roundabout is a circular intersection where traffic flows in one direction around a central island. Instead of stopping at traffic lights, drivers simply yield and merge. The main goal is to make traffic flow (29) __________ and safer. Cars move continuously without the long stops and starts of traditional intersections. (30) __________ results in less fuel consumption and reduces air pollution, making it a more environmentally friendly option.

Another key benefit is safety. The design of a roundabout requires drivers (31) __________ their speed when they enter. The slower speed gives drivers more time to react and make safe decisions. In fact, studies show a significant (32) __________ in the number of serious accidents at roundabouts compared to standard intersections. While they may seem confusing initially, it's really a (33) __________ of learning a new rule. The most important thing is to (34) __________ a cool head and pay attention to the signs and other vehicles.

Rivers are the lifelines of our planet, flowing through landscapes and cities, supporting diverse ecosystems and providing essential water for millions. In our busy daily lives, we often see these rivers but may not think about their health. They are a critical part of our environment, but many face a silent crisis of pollution, turning them from sources of life into symbols of neglect.

The primary threats to river health come from human activities. Industrial factories often discharge chemical waste directly into the water. In rural areas, fertilizers and pesticides from farms can wash into rivers during heavy rain. This process, known as agricultural runoff, can seriously contaminate water sources. Furthermore, plastic bottles, bags, and other non-biodegradable trash frequently end up in rivers, harming aquatic animals and degrading water quality for everyone.

In Vietnam, this problem is very real. The To Lich River in Hanoi, for example, is a well-known case of severe urban water pollution. For years, it has struggled with waste and a dark, unpleasant appearance, making it a visible symbol of environmental challenges. Despite numerous cleanup projects and public promises, restoring the river to its former health has proven to be an incredibly difficult and complex task, showing just how long-term the damage can be.

Understanding the state of our local rivers is the first step towards protecting them. The health of these waterways is a direct reflection of the health of our community and our environment. As young citizens, being aware of the sources of pollution and supporting efforts to reduce waste can make a significant difference. The future of our rivers, and our cities, depends on the choices we make today.